Color is the most common source spectral quality indicators , unit K ( Kelvin ) . In general , any light color temperature is equivalent to the above blackbody emit the same color as being "temperature ." Color is actually a psychological effect on the physical , all colors impression produced is due to intermittent spectral response in the eye , so the color temperature is only used to represent the color of the visual impression.
Everyone has a different color preferences , some people like gaudy colors, it was love pastel colors , different color styles , can be achieved by adjusting the color temperature , the higher the color temperature, the more bluish color , are cool colors .graphic lcd
display module The lower the temperature, the reddish color , are warm . When we adjust the TV's color temperature can be determined according to individual preferences and the use of environmental lighting effects , so that the LCD TV color style in line with their preferences .
The impact of gaudy color screen chroma
Chroma also known as color saturation , hue determines the level of gaudy color LCD TV . Therefore , to get the screen LCD TV better performance , it is reasonable to adjust the color saturation is also very important.
In general , rich colors like style , color can increase some ; like pastel colors style , color can not be adjusted too raised . However, if the color saturation is too low , then the screen will lose color ; color saturation is too high , because the color too gaudy , but also can not normally watch .
Tone adjustable screen style
Hue is the basic tendency LCD TV screen color appearance . In lightness , purity, hue these three elements , certain factors play a leading role , we call it a certain hue. We usually tint on the screen can be defined from the hue, lightness , air purity in four areas .Serial Lcd
Display Module Specific to LCD TVs , the different types of programs , such as nostalgic films, romance films, youth films, war films , each have a different color, a different director to shoot out of the film , but also have different tones. So , enjoy the movies at the time, according to different movie , adjust the tones in the menu , which makes the picture more realistic performance .
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2013年12月30日星期一
Inside LCD TV tuning skills
Into the LCD TV stores found each product colors are so bright , detail is so good, tempted to hurry to buy a home , go home to your TV signal found unsatisfactory results too , could not find in stores screen feeling respected sales staff to enhance the quality of a certain technology could not find a place to play a role . This is believed to buy too many LCD TVs have met friends , mostly through the final sales staff satisfaction after adjustment for television .
Why store in the picture effect so well ? Stores live broadcast of the screen, usually demo piece , is not only high-definition screen , and after a certain amount of technical processing , usually with a static screen -based, it does not even move the screen too fast. So the picture must not be blinded by the store when purchasing a TV , ultimately depends on the TV display technology .
How to get a good picture in the store ? First, have a good source to enjoy a quality picture viewing experience. Many families do not have high-definition signals , still using analog signals, then there will be little snow , image distortion and so on. With the popularity of digital signals , the effect of the LCD screen has been enhanced in many families , in order to truly achieve high results will need to be equipped with a high-definition set-top box , or use the HD player or Blu-ray player to achieve high -quality enjoyment.
Of course, this is the hardware requirements , for there are some aspects of the regulation of soft knowledge of quality improvement , only to get to the satisfaction of both hardware and software picture effect .
Before I introduce the LCD TV screen calibration method, first teach you a method to detect dead pixel LCD . LCD panel is the most important part of LCD TVs , bought back if there is a fly in the ointment is really bad points . So before inspection methods to learn to check dead pixels , dead pixels , then you can choose to reject TV , manufacturers direct exchange , if you do not check the dead pixel , then wait for a period of time with a not so good at the manufacturers rediscovery negotiate it.
Type of dead pixels
Bad points : Because three of the corresponding pixel liquid crystal cell drive tube failures have occurred in any color of the background is rendered as black or pure white pixels.
Highlights : if the corresponding pixels of the three liquid crystal cells , only one or two of the drive tube is faulty , then a black background is rendered in red , green and blue in a color pixel ; or should the original red , green, and blue dots but appear white .
Detection Method dead pixels
1 , with a test disc detection
Only with a black, white , red, green , blue five solid screen test disc into the DVD drive , select all black , all white , or red, green, and blue color background , if you are black, white , different color luminous point appears , it means that this LCD TV exists dead pixels.
2 , check with your computer's video card
Using a computer with an lcd module TV connected to a variety of solid color rendering method to make TV screens . However, this method requires you to consider interface problems , such as VGA interface is a common interface to the computer , if there are just TV VGA interface , simply prepared a VGA cable on the TV and select the "PC (VGA) input signal source ." press the manual settings on your TV , then by like TFTtest, CheckScreen, DisplayMate software in a solid color screen to display the desired screen.
If the above method is feasible for you , can also be directly connected to the cable , the use of a television screen , still image function detected by the TV .
Finally, the need to remind you is this: not all LCD TV has a dead pixel , but all manufacturers have a range for the number of dead pixels explained , generally ranging from 3, 5 or 8 , which is on the quality of the manufacturers strictly related to the degree of control . It is recommended that consumers should be told in advance about the number of vendors and associated procedures returned dead pixels agreement.
Most of LCD TVs picture settings menu , there will be brightness, contrast , color temperature,low temperature lcd color saturation , hue and other options, the value of these options will be adjusted to a reasonable position , can significantly improve the LCD TV display , it displays screen more suitable for our appreciation habits. Now, I gave you talk about what each of these options have played the role , so that we are better able to adjust their own future LCD TV .
Why store in the picture effect so well ? Stores live broadcast of the screen, usually demo piece , is not only high-definition screen , and after a certain amount of technical processing , usually with a static screen -based, it does not even move the screen too fast. So the picture must not be blinded by the store when purchasing a TV , ultimately depends on the TV display technology .
How to get a good picture in the store ? First, have a good source to enjoy a quality picture viewing experience. Many families do not have high-definition signals , still using analog signals, then there will be little snow , image distortion and so on. With the popularity of digital signals , the effect of the LCD screen has been enhanced in many families , in order to truly achieve high results will need to be equipped with a high-definition set-top box , or use the HD player or Blu-ray player to achieve high -quality enjoyment.
Of course, this is the hardware requirements , for there are some aspects of the regulation of soft knowledge of quality improvement , only to get to the satisfaction of both hardware and software picture effect .
Before I introduce the LCD TV screen calibration method, first teach you a method to detect dead pixel LCD . LCD panel is the most important part of LCD TVs , bought back if there is a fly in the ointment is really bad points . So before inspection methods to learn to check dead pixels , dead pixels , then you can choose to reject TV , manufacturers direct exchange , if you do not check the dead pixel , then wait for a period of time with a not so good at the manufacturers rediscovery negotiate it.
Type of dead pixels
Bad points : Because three of the corresponding pixel liquid crystal cell drive tube failures have occurred in any color of the background is rendered as black or pure white pixels.
Highlights : if the corresponding pixels of the three liquid crystal cells , only one or two of the drive tube is faulty , then a black background is rendered in red , green and blue in a color pixel ; or should the original red , green, and blue dots but appear white .
Detection Method dead pixels
1 , with a test disc detection
Only with a black, white , red, green , blue five solid screen test disc into the DVD drive , select all black , all white , or red, green, and blue color background , if you are black, white , different color luminous point appears , it means that this LCD TV exists dead pixels.
2 , check with your computer's video card
Using a computer with an lcd module TV connected to a variety of solid color rendering method to make TV screens . However, this method requires you to consider interface problems , such as VGA interface is a common interface to the computer , if there are just TV VGA interface , simply prepared a VGA cable on the TV and select the "PC (VGA) input signal source ." press the manual settings on your TV , then by like TFTtest, CheckScreen, DisplayMate software in a solid color screen to display the desired screen.
If the above method is feasible for you , can also be directly connected to the cable , the use of a television screen , still image function detected by the TV .
Finally, the need to remind you is this: not all LCD TV has a dead pixel , but all manufacturers have a range for the number of dead pixels explained , generally ranging from 3, 5 or 8 , which is on the quality of the manufacturers strictly related to the degree of control . It is recommended that consumers should be told in advance about the number of vendors and associated procedures returned dead pixels agreement.
Most of LCD TVs picture settings menu , there will be brightness, contrast , color temperature,low temperature lcd color saturation , hue and other options, the value of these options will be adjusted to a reasonable position , can significantly improve the LCD TV display , it displays screen more suitable for our appreciation habits. Now, I gave you talk about what each of these options have played the role , so that we are better able to adjust their own future LCD TV .
2013年12月16日星期一
LCD module production technology
LCD module production technology
SMT
Surface mount technology
That surface mount technology ,custom lcd module which is a more traditional installation. The advantage of high reliability, the disadvantage of large size, high cost , miniaturization limit LCM .
COB
Chip On Board
That chip is bonding (Bonding) on the PCB, due to the LCD controller IC manufacturers and related
Production is reduced on-chip (SMT a ) encapsulation yield QFP, therefore , the conventional SMT system is gradually replaced in future products.
TAB
Tape Aotomated Bonding
Anisotropic conductive adhesive connections. The package in the form of TCP (Tape Carrier
Package tape carrier package) are fixed to the IC and PCB LCD anisotropic conductive adhesive . This installation method can reduce the LCM of weight, volume, easy installation, good reliability !
COG COG LCD Module
Chip On Glass
Chip bonding directly on the glass . This installation method can greatly reduce the volume of the entire LCD module , and easy mass production for consumer electronics products with the LCD, such as: mobile phone , PDA and other portable electronic products. This installation in the IC manufacturer's push connection in the future will be the main IC and LCD .
COF
Chip On Film
Chip is directly mounted on the flexible PCB. A high degree of integration of this connection ,lcm module external components can be mounted on flexible
SMT
Surface mount technology
That surface mount technology ,custom lcd module which is a more traditional installation. The advantage of high reliability, the disadvantage of large size, high cost , miniaturization limit LCM .
COB
Chip On Board
That chip is bonding (Bonding) on the PCB, due to the LCD controller IC manufacturers and related
Production is reduced on-chip (SMT a ) encapsulation yield QFP, therefore , the conventional SMT system is gradually replaced in future products.
TAB
Tape Aotomated Bonding
Anisotropic conductive adhesive connections. The package in the form of TCP (Tape Carrier
Package tape carrier package) are fixed to the IC and PCB LCD anisotropic conductive adhesive . This installation method can reduce the LCM of weight, volume, easy installation, good reliability !
COG COG LCD Module
Chip On Glass
Chip bonding directly on the glass . This installation method can greatly reduce the volume of the entire LCD module , and easy mass production for consumer electronics products with the LCD, such as: mobile phone , PDA and other portable electronic products. This installation in the IC manufacturer's push connection in the future will be the main IC and LCD .
COF
Chip On Film
Chip is directly mounted on the flexible PCB. A high degree of integration of this connection ,lcm module external components can be mounted on flexible
Network HD LCD splicing screen Problems
With the development of technology, and we seek to work in all aspects of the efficiency of any single function device eliminated eventually escape fate . Therefore , LCD splicing screen demand for network -oriented is much more urgent. Influence in today's intelligent devices , users of high-definition LCD screen splicing abnormalities favor , LCD splicing screen high-definition imaging to achieve splicing ,OLED Display the key lies in whether the existing system interface compatibility currently available in high-definition digital technology hd-sdi is more suitable for a class LCD splicing screen interface technology, it has a transmission distance, interface compatible , easy to install , standard features relatively well , it can serve as an important way to achieve the current screen LCD splicing screen high-definition imaging .
Moment , the network is a security monitoring or video display device , and even the main direction of the broader field of self-development . With different surveillance cameras , network for the transmission of LCD splicing screen has a huge advantage in the case of transmission distance it can still ensure high picture quality , achieve megapixels and more. Although the transmission network in , LCD splicing screen large screen is also facing the same package is lost, delayed data compression defects . However , faced with fierce competition from the current display technologies , LCD splicing screen difficult to give up the desire for networked .
With the expansion of LCD splicing screen applications , lcd module splicing screen has gained , but the LCD screen mosaic patchwork need to break through the bottleneck of the original , and in accordance with market demand to diversify . LCD splicing screen technology for their development really a great proportion.
Moment , the network is a security monitoring or video display device , and even the main direction of the broader field of self-development . With different surveillance cameras , network for the transmission of LCD splicing screen has a huge advantage in the case of transmission distance it can still ensure high picture quality , achieve megapixels and more. Although the transmission network in , LCD splicing screen large screen is also facing the same package is lost, delayed data compression defects . However , faced with fierce competition from the current display technologies , LCD splicing screen difficult to give up the desire for networked .
With the expansion of LCD splicing screen applications , lcd module splicing screen has gained , but the LCD screen mosaic patchwork need to break through the bottleneck of the original , and in accordance with market demand to diversify . LCD splicing screen technology for their development really a great proportion.
2013年12月9日星期一
LCD Display Identification and stitching quality entertainment applications
LCD splicing screen has entered all walks of life , has a strong advantage in brightness, color , sharpness, viewing angle, life, environmental adaptability , and many other areas , making the LCD splicing screen on the market with the development of high-growth trend. Meanwhile, its diverse applications , prompting Japanese LCD splicing screen size models varied products . Here, we identify a method to tell the quality of the LCD splicing screen .
An LCD screen size after stitching patchwork . If larger , of course, can not choose , and now manufacturers are using DID LCD screen, ultra-narrow border design, stitching the smallest gap is only a few millimeters can make a complete and clear picture quality rendering.
2 . Viewing angle. With advances in LCD technology, the normal viewing angle LCD splicing screen has reached more than double to 178 degrees .
3 . Contrast. This is also an important indicator to measure the LCD splicing screen , and when we have to watch the movie scene when the characters from the chiaroscuro contrast level can be presented .
4 brightness. The brighter the LCD screen is particularly eye-catching. LCD display is a solid and liquid substances between before , which itself is not luminous, its brightness is determined by the panel behind the backlight lamp to achieve, so the relationship between the number of lamps LCD screen brightness.
Structure 5.LCD splicing screen . A complete LCD splicing wall is composed of multiple splicing unit spliced form of m × n is made , day and night are no longer needed to work non-stop operation , which requires splicing LCD screen with a strong stability.
6 LCD splicing screen in what the panel. It directly affects the LCD splicing product performance and service life , but also affect the client's brand and reputation of the manufacturer .
With the application of large-screen LCD splicing products more widely, competition within the industry but also in the gradual warming, thus contributing to the liquid crystal mosaic manufacturers have to upgrade its technology, control production costs , which can effectively control the LCD splicing products the final price and provide more quality services. Coupled with a large screen LCD splicing has so many super- excellent overall results, especially on the screen size and visually stunning , crystal mosaic in the application of the absolute superiority of public entertainment is more than a little bit. In KTV halls , and its showing a clear and smooth display, pleasing colors and delicate senses , allowing all customers to shop entertainment to enjoy large-screen display brings a different kind of visual feast.
Under the drive market demand, LCD splicing products in the future is bound to show its mettle in entertainment. To meet market needs , Rui An electron must constantly upgrade their technology OLED Display, to provide customers with more quality and cheap LCD Video Wall products and considerate services in place to drive healthy competition in the market, to bring entertainment to the user a win-win situation. While on the surface, the price of LCD splicing products relative to the current price of the most commonly used flat panel TV entertainment and projectors in terms remains to be high on a lot , but the presentation of the LCD splicing overall advantage is that they can not match.
With the rising economy, people enjoy the quality of life requirements are constantly undergoing change , and now the bar pastime guests on behalf of the brand image reflects the upgrade function and have a strong contemporary video display equipment requirements are also increasingly high . Flat-panel TVs and projectors have been traditionally used the bar in terms of price advantage, but the lack of technology and the effects on their existence, and in front of the LCD splicing technology can be easily resolved, with prices down, the entertainment industry, users are beginning to generally optimistic and accept the LCD-screen products.
LCD screen splicing products with high brightness , high resolution , low power consumption , light weight , long life ( generally around 60,000 hours working properly ) , no radiation, up to 97% color saturation , the screen brightness uniformity , beautiful color other advantages. Recall that a few years ago , the price of 40-inch LCD splicing units are generally in the range of about 8000 to 10,000 yuan , while just a year ago Graphic OLED Display, Rui An electronic pioneered reported a 40- inch full HD LCD splicing Price unit is only 3,800 yuan, once played a chain reaction , domestic manufacturers have cut prices , resulting in final prices are generally falling down.
An LCD screen size after stitching patchwork . If larger , of course, can not choose , and now manufacturers are using DID LCD screen, ultra-narrow border design, stitching the smallest gap is only a few millimeters can make a complete and clear picture quality rendering.
2 . Viewing angle. With advances in LCD technology, the normal viewing angle LCD splicing screen has reached more than double to 178 degrees .
3 . Contrast. This is also an important indicator to measure the LCD splicing screen , and when we have to watch the movie scene when the characters from the chiaroscuro contrast level can be presented .
4 brightness. The brighter the LCD screen is particularly eye-catching. LCD display is a solid and liquid substances between before , which itself is not luminous, its brightness is determined by the panel behind the backlight lamp to achieve, so the relationship between the number of lamps LCD screen brightness.
Structure 5.LCD splicing screen . A complete LCD splicing wall is composed of multiple splicing unit spliced form of m × n is made , day and night are no longer needed to work non-stop operation , which requires splicing LCD screen with a strong stability.
6 LCD splicing screen in what the panel. It directly affects the LCD splicing product performance and service life , but also affect the client's brand and reputation of the manufacturer .
With the application of large-screen LCD splicing products more widely, competition within the industry but also in the gradual warming, thus contributing to the liquid crystal mosaic manufacturers have to upgrade its technology, control production costs , which can effectively control the LCD splicing products the final price and provide more quality services. Coupled with a large screen LCD splicing has so many super- excellent overall results, especially on the screen size and visually stunning , crystal mosaic in the application of the absolute superiority of public entertainment is more than a little bit. In KTV halls , and its showing a clear and smooth display, pleasing colors and delicate senses , allowing all customers to shop entertainment to enjoy large-screen display brings a different kind of visual feast.
Under the drive market demand, LCD splicing products in the future is bound to show its mettle in entertainment. To meet market needs , Rui An electron must constantly upgrade their technology OLED Display, to provide customers with more quality and cheap LCD Video Wall products and considerate services in place to drive healthy competition in the market, to bring entertainment to the user a win-win situation. While on the surface, the price of LCD splicing products relative to the current price of the most commonly used flat panel TV entertainment and projectors in terms remains to be high on a lot , but the presentation of the LCD splicing overall advantage is that they can not match.
With the rising economy, people enjoy the quality of life requirements are constantly undergoing change , and now the bar pastime guests on behalf of the brand image reflects the upgrade function and have a strong contemporary video display equipment requirements are also increasingly high . Flat-panel TVs and projectors have been traditionally used the bar in terms of price advantage, but the lack of technology and the effects on their existence, and in front of the LCD splicing technology can be easily resolved, with prices down, the entertainment industry, users are beginning to generally optimistic and accept the LCD-screen products.
LCD screen splicing products with high brightness , high resolution , low power consumption , light weight , long life ( generally around 60,000 hours working properly ) , no radiation, up to 97% color saturation , the screen brightness uniformity , beautiful color other advantages. Recall that a few years ago , the price of 40-inch LCD splicing units are generally in the range of about 8000 to 10,000 yuan , while just a year ago Graphic OLED Display, Rui An electronic pioneered reported a 40- inch full HD LCD splicing Price unit is only 3,800 yuan, once played a chain reaction , domestic manufacturers have cut prices , resulting in final prices are generally falling down.
All kinds of LCD Video Wall System rapidly growing popularity in all fields
LCD Video Wall with the various types of computer analog / digital signals , composite video signal , color difference signals , such as on the big screen , and to achieve the switching signal , superimposed combination functions. Has become a safe city command center , Railway ( MTR ) , ports, terminals surveillance systems, intelligent traffic management control center , defense or military surveillance systems, power control and supervision system , large industrial control systems , financial management and monitoring systems, television studio or a large center monitor walls, large venues background walls, video conferencing and other information collection, processing key display device. Currently, the LCD display mosaic wall mosaic tiled display system has been developed into one of the mainstream technologies, relative to the DLP and PDP, LCD splicing wall of a longer life, and lower power , less heat , the failure rate is very low , more suitable to 24 hours of continuous use security monitoring large-screen mosaic wall selection .
Embedded LCD screen mosaic wall -to-market time is not long, but in the field of flat panel display wall has occupied an important position , it has a lightweight , thin, long life, low maintenance cost , low power consumption , no radiation , high-definition , etc. and praised by users. With the development of LCD technology, embedded hardware splicing technology , multi-screen image processing, signal switching technology related technologies such as video wall , the new large-screen mosaic wall in the terminal display device engineering applications rapidly in popularity.
Large screen digital display wall system to establish a management command to run a mechanism to integrate with data acquisition , processing, scheduling, feedback and other features that can enhance the resilience of the local coal mine , so that before the accident prevention and monitoring of emergency after the accident rescue and command ,TFT LCD Displays so as to promote a fundamental change in the coal business and technical progress of the coal industry management approach.
Large screen digital display wall systems can be obtained in a timely manner and is very intuitive mine safety and production information to facilitate monitoring and management , implemented in the central control room via digital mosaic wall , high- resolution, high -contrast display gas remote monitoring of networked mine situation . Lock state mining engineering drawings , and provides security features , see the adjacent coal mining tone drawings , viewing and measuring the distance , tune to see historical chart comparative analysis , etc., to solve the cross-border exploitation and provide an effective safety issues through technical means . Mine monitoring systems and the use of advanced fiber contact , to achieve city, county , three mine and mine monitoring center network management control and management , enabling the remote coal mine gas monitoring and analysis of the area , cross-border supervision of mining , gas hazards query , ventilation status query and safety regulation and management .
The coal industry "digital safe" integrated information network systems, application of large -screen digital display wall system for all kinds of information provides powerful processing and display functions , it is within the jurisdiction of mine safety production monitoring and control systems and information management systems to establish a database directly carried out on the map of high -resolution,Serial Lcd Display Module large-scale digital large screen mosaic wall engineering design, calculations, testing, production tracking , scheduling, management and information queries.
Embedded LCD screen mosaic wall -to-market time is not long, but in the field of flat panel display wall has occupied an important position , it has a lightweight , thin, long life, low maintenance cost , low power consumption , no radiation , high-definition , etc. and praised by users. With the development of LCD technology, embedded hardware splicing technology , multi-screen image processing, signal switching technology related technologies such as video wall , the new large-screen mosaic wall in the terminal display device engineering applications rapidly in popularity.
Large screen digital display wall system to establish a management command to run a mechanism to integrate with data acquisition , processing, scheduling, feedback and other features that can enhance the resilience of the local coal mine , so that before the accident prevention and monitoring of emergency after the accident rescue and command ,TFT LCD Displays so as to promote a fundamental change in the coal business and technical progress of the coal industry management approach.
Large screen digital display wall systems can be obtained in a timely manner and is very intuitive mine safety and production information to facilitate monitoring and management , implemented in the central control room via digital mosaic wall , high- resolution, high -contrast display gas remote monitoring of networked mine situation . Lock state mining engineering drawings , and provides security features , see the adjacent coal mining tone drawings , viewing and measuring the distance , tune to see historical chart comparative analysis , etc., to solve the cross-border exploitation and provide an effective safety issues through technical means . Mine monitoring systems and the use of advanced fiber contact , to achieve city, county , three mine and mine monitoring center network management control and management , enabling the remote coal mine gas monitoring and analysis of the area , cross-border supervision of mining , gas hazards query , ventilation status query and safety regulation and management .
The coal industry "digital safe" integrated information network systems, application of large -screen digital display wall system for all kinds of information provides powerful processing and display functions , it is within the jurisdiction of mine safety production monitoring and control systems and information management systems to establish a database directly carried out on the map of high -resolution,Serial Lcd Display Module large-scale digital large screen mosaic wall engineering design, calculations, testing, production tracking , scheduling, management and information queries.
2013年12月3日星期二
You know with LED TV
With the constantly updated display technology , mainstream TV is constantly refurbished. Today, LCD TV into the appliance store counters , we often see the words "LED TV" . So, what exactly is LED TV ? What are the characteristics of LED TV ? What to buy time and need to pay attention ?
Most problems many consumers face is "What is LED TV " "LED TV and LCD TV What's the difference ," and so on. In fact , LED TV only our popular name for it, strictly speaking , LED -backlit LCD TV is a more apt title.
In other words, the so-called LED TVs on the market , not a mainstream technology branch of flat-panel TVs , but the traditional CCFL backlit LCD TVs sources used to replace the new LED light source , which is essentially an LCD TV.
Well , LED as a light source , what characteristic? First, we still want to talk briefly about the imaging principle LCD TVs.
And Plasma TVs from different light source, LCD TV is a passive luminescence imaging , ie, need to use the LCD TV backlight emits light through the polarizer , then through the liquid crystal molecule layer , followed by another piece of color filter and polarizer and imaging. Since the liquid crystal molecules in the voltage fluctuation will change the angle of the arrangement of the light transmittance is changed to form an image change.
Used in traditional LCD TVs are called cold cathode fluorescent lamp CCFL backlight, as well as because of its mercury and other harmful substances , not environmentally friendly.
And a light emitting diode LED is the material known by the voltage change using the semiconductor light emitting chip , which has excellent light emitting characteristics not only better color saturation , fast response time , less light leakage . By increasing the contrast , regional control and other means , the display performance is much better than the CCFL technology. And do not contain mercury and other harmful substances, more healthy environment.
In addition , the use of LED backlight TV is thinner and lighter body , and longer life , usually LED life can reach 100,000 hours , 10 hours a day by using , you can use 27 years , compared to traditional light sources 5-6 years many long life , so popular with consumers .
In the field of television uses LED technology , Graphic LCD Display mainly primary colors of white and two technical branches.
White LED can emit white light, after the liquid crystal layer, and then through the R / G / B color filter into a separate color. LCD TV color quality of light quality is mainly determined by the backlight . RGB backlight spectrum of light for each primary color the higher the purity , the more pure colors to restore the order in the final , only to restore the pure RGB primary colors , in order to deploy a pure and true color effects.
White LED TV is divided into two sides of the direct type and style . Using side -emitting structures can be made into a TV slim, ultra-thin LED TVs currently on the market and more are adopting this technology. Direct type white LED brightness can be adjusted locally , thus higher overall picture quality of some .
Another branch of technology that can be issued issued LED backlight technology R, G, B primary colors of light. Since the backlight RGB primary colors can be independently controlled to achieve a more wide color gamut , better color performance . While also effectively enhance the contrast of the TV , to achieve more accurate color gradation and layering more pictures , but also has three primary levels of local backlight adjustment function. Currently mainly used for high-end LCD TV.
In addition ,OLED Module some companies have developed on the basis of a more sophisticated technology, such as Sharp's Western -primary color display technology is the basis of the added RGB Y, that is yellow , so richer color performance .
Most problems many consumers face is "What is LED TV " "LED TV and LCD TV What's the difference ," and so on. In fact , LED TV only our popular name for it, strictly speaking , LED -backlit LCD TV is a more apt title.
In other words, the so-called LED TVs on the market , not a mainstream technology branch of flat-panel TVs , but the traditional CCFL backlit LCD TVs sources used to replace the new LED light source , which is essentially an LCD TV.
Well , LED as a light source , what characteristic? First, we still want to talk briefly about the imaging principle LCD TVs.
And Plasma TVs from different light source, LCD TV is a passive luminescence imaging , ie, need to use the LCD TV backlight emits light through the polarizer , then through the liquid crystal molecule layer , followed by another piece of color filter and polarizer and imaging. Since the liquid crystal molecules in the voltage fluctuation will change the angle of the arrangement of the light transmittance is changed to form an image change.
Used in traditional LCD TVs are called cold cathode fluorescent lamp CCFL backlight, as well as because of its mercury and other harmful substances , not environmentally friendly.
And a light emitting diode LED is the material known by the voltage change using the semiconductor light emitting chip , which has excellent light emitting characteristics not only better color saturation , fast response time , less light leakage . By increasing the contrast , regional control and other means , the display performance is much better than the CCFL technology. And do not contain mercury and other harmful substances, more healthy environment.
In addition , the use of LED backlight TV is thinner and lighter body , and longer life , usually LED life can reach 100,000 hours , 10 hours a day by using , you can use 27 years , compared to traditional light sources 5-6 years many long life , so popular with consumers .
In the field of television uses LED technology , Graphic LCD Display mainly primary colors of white and two technical branches.
White LED can emit white light, after the liquid crystal layer, and then through the R / G / B color filter into a separate color. LCD TV color quality of light quality is mainly determined by the backlight . RGB backlight spectrum of light for each primary color the higher the purity , the more pure colors to restore the order in the final , only to restore the pure RGB primary colors , in order to deploy a pure and true color effects.
White LED TV is divided into two sides of the direct type and style . Using side -emitting structures can be made into a TV slim, ultra-thin LED TVs currently on the market and more are adopting this technology. Direct type white LED brightness can be adjusted locally , thus higher overall picture quality of some .
Another branch of technology that can be issued issued LED backlight technology R, G, B primary colors of light. Since the backlight RGB primary colors can be independently controlled to achieve a more wide color gamut , better color performance . While also effectively enhance the contrast of the TV , to achieve more accurate color gradation and layering more pictures , but also has three primary levels of local backlight adjustment function. Currently mainly used for high-end LCD TV.
In addition ,OLED Module some companies have developed on the basis of a more sophisticated technology, such as Sharp's Western -primary color display technology is the basis of the added RGB Y, that is yellow , so richer color performance .
What principle is leaked
LCD light leakage between the main screen is the agreement with the LCD lead frame does not close out the light transmittance of the lamp , this is a common problem in the LCD TV ,graphic lcd
128x64 or from a certain angle, a phenomenon can not be avoided , but is not the same extent .
LCD TV leaked the main reason there are two , the first is the question of the panel, when the panel is not good quality, or means of transport accidents , resulting in curved panels , so there will be a serious light leakage problem , if it is checked out at the factory in this case, the factory will be banned . Another is when assembled , convergence between the LCD panel does not close the border with the cause slight light leakage. But in general it is difficult to see out the naked eye , and only in total darkness environmental inspection to clearly see the light leakage.
What is the principle of light leakage is it ? We mentioned earlier , is due to problems caused by convergence , where the allowed range , is a normal phenomenon , but does not affect the life of the TV leaked , response time, brightness and other parameters. Countries have enacted regulations under the black case, leaked ≤ 4cd / standards.
We buy products TFT LCD Display television, a major concern dead pixels, bright spots , dark spots, light leakage and other factors, while the red , green and blue are the three basic color television , which is the main measure of television color parameters, we tested when the LCD TV is mainly used red, green, blue, white , and black colors to examine the quality of the product
LCD TV leaked the main reason there are two , the first is the question of the panel, when the panel is not good quality, or means of transport accidents , resulting in curved panels , so there will be a serious light leakage problem , if it is checked out at the factory in this case, the factory will be banned . Another is when assembled , convergence between the LCD panel does not close the border with the cause slight light leakage. But in general it is difficult to see out the naked eye , and only in total darkness environmental inspection to clearly see the light leakage.
What is the principle of light leakage is it ? We mentioned earlier , is due to problems caused by convergence , where the allowed range , is a normal phenomenon , but does not affect the life of the TV leaked , response time, brightness and other parameters. Countries have enacted regulations under the black case, leaked ≤ 4cd / standards.
We buy products TFT LCD Display television, a major concern dead pixels, bright spots , dark spots, light leakage and other factors, while the red , green and blue are the three basic color television , which is the main measure of television color parameters, we tested when the LCD TV is mainly used red, green, blue, white , and black colors to examine the quality of the product
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