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Mobile Phone LCD Screen Quality Control Expert

What are the parameters of LCD liquid crystal polarizers?

by:Kimeery     2023-03-27
What are the parameters of LCD mobile mobile phone LCD screen polarizers? LCD polarizers can be introduced from the characteristics and technical parameters, I believe it is very useful for many LCD manufacturers. 1. Introduction to the characteristics Allow light vibrating in one direction to pass through, and absorb all or part of the light in other directions. The light vibrating on the vertical light propagation path is called linearly polarized light. The direction of its vibration is the polarization direction, which is what we know as the polarization axis. 1.1 Structure: complex structure Iodine type: high light transmittance and high polarization efficiency. 1.2. Two major factions of polarizers: Dye type ): Four types of high-reliability polarizers: full-transmission, semi-reflective, total-reflective, phase difference compensation, 3M HR film (laser holographic film) 1.3. Main technical indicators of polarizer 1. Color: Ordinary polarizers are gray, subdivided into medium gray and blue gray, and now there are red, magenta, blue, yellow, purple, blue-violet and other polarizers. 2. Polarization degree: The polarization degree of the polarizer is also called the polarization efficiency of the polarizer, which is the intensity of the transmitted light in the direction of vibration along the polarization axis and vertical polarization axis of the polarizer after the natural light passes through the polarizer. 3. Light transmittance: The light transmittance is generally divided into single light transmittance, parallel light transmittance and orthogonal light transmittance. 4. Hue: Hue refers to the color coordinate value corresponding to the color of the polarizer (L*a*b color system). 5. Effective thickness: Effective thickness refers to the total thickness of the polarizer, including substrate thickness, glue thickness and protective film thickness. Special performance polarizers, such as anti-glare (anti-glare), anti-ultraviolet (anti-UV), high-durability polarizers, etc., also have their special performance indicators. LCD performance related to polarizers: background color, contrast, light transmittance/emissivity, reliability TFT-mobile phone LCD LCD screenmanufacturers PMOLED display AMOLED display

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