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Color light filter

A color filter and light technology, applied in the field of color filters, can solve the problems that black matrix cannot provide good shading rate, low reflectivity, etc., and achieve the improvement of poor reflectivity, low reflectivity and good shading rate Effect

Inactive Publication Date: 2007-07-04
E INK HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the object of the present invention is to provide a color filter to improve the problem that the existing black matrix cannot provide good shading rate and low reflectance

Method used

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Embodiment Construction

[0026] In order to solve the problem that the existing black matrix cannot provide good shading rate and low reflectance, the present invention proposes a color filter.

[0027] The invention firstly grows an indium tin oxide layer on a glass substrate, and then grows a silicon nitride layer, an amorphous silicon layer, an N-type silicon layer and a metal layer in sequence. External light will enter the color filter of the present invention from the glass substrate. First, the amorphous silicon layer and the N-type silicon layer are used to absorb the light, and then the metal layer will block and reflect the external light. The incident and reflected light will pass through the indium tin oxide layer Interferes destructively with the silicon nitride layer. In addition, since the incident light is reflected by the metal layer, the amorphous silicon layer and the N-type silicon layer can absorb light again.

[0028] Please refer to FIG. 2 , which shows a cross-sectional view o...

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Abstract

A color filter is prepared by growing a layer of indium - tin oxide on glass base plate then growing silicon nitride layer , amorphous silicon layer , N formed silicon layer and metal layer in sequence on them , regulating thickness and process conditions of above layers to have black matrix , red reflecting layer , green reflecting layer and blue reflecting layer separately .

Description

technical field [0001] The invention relates to a structure of a liquid crystal display, and in particular to a color filter. Background technique [0002] Liquid crystal (liquid crystal; LC) is a substance between crystal and liquid. When subjected to external stimuli such as electric fields, the arrangement of liquid crystal molecules will change accordingly, thereby controlling whether light passes through or not. Utilizing the characteristics of liquid crystals, it can be used to form display elements. [0003] At present, in the traditional color thin film transistor liquid crystal display (Color TFT-LCD), the thin film transistor substrate and the color filter substrate are manufactured separately, and then completed by hot pressing and other subsequent processes. The color filter substrate includes color filters of three colors of red, green and blue, and a black matrix (black matrix). The black matrix is ​​used to shield thin-film transistors, wiring on indium tin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/23
Inventor 蓝纬洲邱士魁
Owner E INK HLDG INC