Colour filter of liquid crystal display and liquid crystal display using said colour filter

A liquid crystal display and liquid crystal display technology, applied in the field of color filters, can solve problems such as weak light resistance, low heat resistance, and weak adhesion

Inactive Publication Date: 2004-07-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, acrylic epoxy materials have the following disadvantages, low heat resistance due to annealing of transparent electrodes,

Method used

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  • Colour filter of liquid crystal display and liquid crystal display using said colour filter
  • Colour filter of liquid crystal display and liquid crystal display using said colour filter
  • Colour filter of liquid crystal display and liquid crystal display using said colour filter

Examples

Experimental program
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Effect test

Embodiment 1

[0076] Embodiment 1-Preparation of color filter

[0077] A 730 mm x 920 mm x 0.7 mm transparent glass substrate (Coming 1737) was cleaned and dried with a UV cleaning device low-pressure mercury lamp. The 1600_ thick Cr film and the 400_ thick Cr film 2 o 3 The films were sprayed continuously to obtain a Cr glass.

[0078] A posi-photoresist (Clariant's HKT601) with a thickness of 1.2 μm was coated on the Cr glass. After drying, use a mask with 230 μm × 60 μm openings at 50 mJ / cm 2 exposure. The exposed glass is rinsed with alkali. Then, the rinsed opening on the photoresist is etched with CAN (cerium ammonium nitrate), and the sunlight resist is stripped and cleaned to obtain a black matrix glass.

[0079] Red photoresist (Dongwoon Fine-Chem's M-R352) was coated on the prepared black matrix glass, exposed, rinsed, and baked to obtain red pixels. In the same way, green pixels were obtained with green photoresist (Dongwoon Fine-Chem's M-R302S) and blue pixels were obta...

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Abstract

The present invention relates to a color filter for a liquid crystal display and a liquid crystal display using the same, and more particularly to a color filter for a liquid crystal display comprising a pixel area, a black matrix, and a transparent overcoating film, wherein the transparent overcoating film comprises a thermosetting polymer obtained by mixing a) polyamic acid having siloxane terminal groups; and b) an epoxy compound having 1 to 4 epoxy groups, and a liquid crystal display using the same. The color filter for a liquid crystal display of the present invention comprises a transparent overcoating film having a wide pattern formation margin of a transparent electrode and superior heat resistance, light resistance, and transmissivity. When applied to a liquid crystal display, this color filter can offer a liquid crystal display, particularly ITO PVA mode liquid crystal display with good physical properties and is capable of realizing a wide view angle.

Description

technical field [0001] The present invention relates to a color filter for a liquid crystal display, and more particularly to a color filter for a liquid crystal display capable of providing a wide viewing angle by dividing a pixel area into many small areas. Background technique [0002] A liquid crystal material of a general liquid crystal display is interposed between an upper layer forming a common electrode and a color filter and a lower layer forming a thin film transistor and a pixel electrode. Different voltages act on the pixel electrode and the common electrode to form an electric field, thereby changing the arrangement of liquid crystal molecules, thereby controlling the light transmittance for forming an image. [0003] The biggest disadvantage of liquid crystal display is that its viewing angle is too narrow, and now there are many ways to expand the viewing angle, among them, liquid crystal molecules are arranged vertically in the upper and lower layers to form...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02F1/1333G02F1/1335G02F1/139G03F7/00
CPCG02F1/133371G02F2001/133519G03F7/0007G02F1/133514G02F1/133512G02F1/1393C09K2323/033G02F1/133519G02F1/1335
Inventor 许撤金炳住池升龙崔羽
Owner SAMSUNG ELECTRONICS CO LTD
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