The liquid crystal display according to common physical structure divided into four

Enjoying every day that distinctive high -grade LCD display at the same time , do not forget the maintenance of this vital link. LCD only well maintained , only long-term trouble-free service for users . If you already have a LCD or flat panel displays, here's some very useful tips on you , and I will be following some of their own use and maintenance of the LCD monitor experience out and share with you .

Common LCD monitors according to the physical structure is divided into four categories:

① twisted nematic ( abbreviated TN, full TwistedNematic, mainly used in areas such as game consoles LCD screen ) ;

② super twisted nematic ( referred to STN, full SuperTN, the current multi- phone LCD screen is used ) ;

③ double super twisted nematic (DSTN, full DualScanTortuosityNomograph, early laptop computers and mobile phones and other digital devices currently used Jieyou ) ;

④ type thin film transistor (TFT, full ThinFilmTransistor, currently the mainstream ) .

TN LCD screen LCD screen is the originator of all kinds , and its technical principle is the cornerstone of the future development of the lcd modules screen . TN liquid crystal display comprises two layers of glass substrate , ITO film, with the film, a polarizing plate , etc. made of plywood , the upper and lower sandwich the liquid crystal molecules in the liquid crystal molecules near the upper interlayer according to the direction of the groove arranged in the upper part and the lower sandwich the liquid crystal molecules are arranged according to the direction of the groove bottom , the overall look , the liquid crystal molecules are arranged as a spiral twist .

Once the liquid crystal molecules through the electrode power , TN liquid crystal will become erect state, and sandwich the liquid crystal display of the two polarizing plates attached , these two polarizing plates arranged up and down and the transparent interlayer groove angle and the same arrangement in normal circumstances, the light irradiated from the top down , usually only one angle of light can penetrate down .

Imported by the upper polarizing plate laminated on the groove , and through the arrangement of the liquid crystal molecules twist polarizer from the piercing path , light penetration to form a complete way . When the liquid crystal molecules upright light can not pass , the result appears on the display black. This will form when the white light is not light when black , the picture can be displayed on the screen.

The current mainstream of a TFT type liquid crystal display components more complex , it is mainly a fluorescent tube , a light guide plate , a polarizing plate , filter plate , a glass substrate , with the film, the liquid crystal material , thin film transistors , etc. composition. TFT LCD Display with backlight fluorescent tube, the light will pass through a polarizer and then through the LCD , then the arrangement of liquid crystal molecules will change the angle of penetration of the liquid crystal light , then these rays must also pass in front of the color filter polarizer film with another one . And as long as changing the voltage applied to the liquid crystal can control the value of the last occurrence of light intensity and color , so you can change the LCD panel with different shades of color combinations.