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Semi permeable type liquid crystal display, and producing method

A technology of liquid crystal display and manufacturing method, which is applied in semiconductor/solid-state device manufacturing, static indicators, instruments, etc., can solve the problems of lower reflectivity, lower transmittance, darker display color, etc., to improve contrast and brightness, and improve reflection. The effect of high rate, high black and white display

Inactive Publication Date: 2006-02-01
深圳市合力泰光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of them is to use a transmissive color filter film, and open the reflective film placed on the color filter film, that is, set a light-transmitting area on the reflective film. After the color filter film is made by this method, the uniformity of the film surface is not good. , In addition, in the production process, the color filter film is not only easily polluted, and the yield is not high, but also in the opening process of the reflective film, the solvent used for opening will affect the chromaticity of the color filter film, thereby reducing the display brightness; The other is a conventional method, which also uses a transmissive color filter. The reflective film under the color filter is opened. The area of ​​the color filter is slightly larger than the opening area of ​​the reflective film. The color filter of this method is only Partially covering the glass substrate, it is difficult to ensure the uniformity of the display during production, and the area of ​​the color filter film is slightly larger than the opening area of ​​the reflective film, which will reduce the reflectivity. darker color

Method used

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  • Semi permeable type liquid crystal display, and producing method

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specific Embodiment approach 1

[0038] This semi-transmissive liquid crystal display includes an upper polarizer 10, an upper transparent substrate 20, an upper transparent conductive film 30, a liquid crystal 40, and a lower transparent conductive film 50 in sequence from the external light source to the backlight source, and sequentially from the backlight source to the external light source. Including a lower polarizer 100 and a lower transparent substrate 90, on the lower transparent substrate 90 are sequentially a reflective film 80 with an opening 120, a color filter film 70, an insulating layer 60 covering the color filter film 70 and coated with a lower transparent conductive film 50 . At each opening 120 of the reflective film 80 , the color filter film 70 partially covers the reflective film opening 120 , and the area of ​​the color filter film 70 is smaller than the area of ​​the reflective film opening 120 .

[0039] The reflective film 80 is an aluminum film.

[0040] The colors represented by ...

specific Embodiment approach 2

[0050]This semi-transmissive liquid crystal display includes an upper polarizer 10, an upper transparent substrate 20, an upper transparent conductive film 30, a liquid crystal 40, and a lower transparent conductive film 50 in sequence from the external light source to the backlight source, and sequentially from the backlight source to the external light source. Including a lower polarizer 100 and a lower transparent substrate 90, on the lower transparent substrate 90 are a color filter film 70, a reflective film 80 with an opening 120, covering the color filter film 70 and the reflective film 80 and coated with a lower transparent conductive film 50 The insulating layer 60.

[0051] At each opening 120 of the reflective film, the color filter film 70 partially covers the reflective film opening 120 , and the area of ​​the color filter film 70 is smaller than the area of ​​the reflective film opening 120 .

[0052] The reflective film 80 is a silver film.

[0053] The colors ...

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Abstract

A liquid crystal display of semi ¿C transmission type sets reflection film ( RF ) with opening, colour filtering film ( FF ) and insulation layer in sequence on bottom transparent base plate or sets CFF , RF and insulation layer in sequence on bottom transparent base plate . Its preparing method includes cutting out the opening on RF first before ITO pattern is prepared , then preparing CFF with area less than area of opening on RF or preparing CFF first , than cutting out opening on RF with area greater than area of FCC at each opening of RF .

Description

technical field [0001] The present invention relates to devices or devices based on liquid crystals for controlling the intensity, color, phase, polarization or direction of light from an independent light source, in particular to transflective liquid crystal displays and methods of making the same. Background technique [0002] There are generally three types of existing liquid crystal displays: reflective, transmissive, and semi-transmissive. The commonly used structure of transflective liquid crystal display is reflective film opening type, which can be used in bright or dark places. In bright light, no backlight is needed, and the contrast is good; in dim light, the contrast is good with backlight, especially by changing the size of the opening of the reflective film, the transmittance and reflectivity can be adjusted, so as to balance the transmission and reflection to a certain extent However, the transmittance and reflectance of the transflective liquid crystal displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/133G03F7/20H01L21/00
Inventor 何志奇李铁
Owner 深圳市合力泰光电有限公司
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