Orientation film, orientation film material, liquid crystal display having orientation film, and method for forming the same

一种液晶显示装置、取向膜的技术，应用在运输和包装、薄料处理、仪器等方向，能够解决无法得到充分特性等问题，达到抑制残影的效果

Active Publication Date: 2011-09-21
MERCK PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Alignment film formed by using one kind of polymer may not be able to obtain sufficient characteristics

Method used

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  • Orientation film, orientation film material, liquid crystal display having orientation film, and method for forming the same
  • Orientation film, orientation film material, liquid crystal display having orientation film, and method for forming the same
  • Orientation film, orientation film material, liquid crystal display having orientation film, and method for forming the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0207] Below, refer to figure 2 and Image 6 , the alignment film and liquid crystal display device of Example 1-1 will be described. The liquid crystal display device of Example 1-1 also operates in the RTN mode.

[0208] First, on the main surface of the first insulating substrate 222, although not shown in the figure, TFTs, wirings connected to the TFTs, insulating layers, and the like are formed, and the pixel electrodes 224 are formed on them. Similarly, on the main surface of the second insulating substrate 242, although not shown in the figure, a colored layer having a color filter, an insulating layer, and the like are formed, and the counter electrode 244 is formed thereon.

[0209] Next, a material for a vertical alignment type alignment film was prepared. The alignment film material is an alignment film material for photo alignment films. The alignment film material is formed by dissolving the precursor of the first polyimide p1, the second polyimide p2 and its...

Embodiment 1-2

[0224] Below, refer to figure 2 and Image 6 , the alignment film and liquid crystal display device of Example 1-2 will be described. The liquid crystal display device of Example 1-2 also operates in the RTN mode.

[0225] First, on the main surface of the first insulating substrate 222, although not shown in the figure, TFTs, wirings connected to the TFTs, insulating layers, and the like are formed, and the pixel electrodes 224 are formed on them. Similarly, on the main surface of the second insulating substrate 242, although not shown in the figure, a colored layer having a color filter, an insulating layer, and the like are formed, and the counter electrode 244 is formed thereon.

[0226] Next, a material for a vertical alignment type alignment film was prepared. The alignment film material is an alignment film material for photo alignment films. The alignment film material is formed by adding a vinyl monomer after dissolving the precursor of the first polyimide p1, th...

Embodiment 1-3

[0239] Below, refer to figure 2 and Image 6 , the alignment film and liquid crystal display device of Examples 1-3 will be described. The liquid crystal display devices of Examples 1-3 also work in the RTN mode.

[0240] First, on the main surface of the first insulating substrate 222, although not shown in the figure, TFTs, wirings connected to the TFTs, insulating layers, and the like are formed, and the pixel electrodes 224 are formed on them. Similarly, on the main surface of the second insulating substrate 242, although not shown in the figure, a colored layer having a color filter, an insulating layer, and the like are formed, and the counter electrode 244 is formed thereon.

[0241] Next, a material for a vertical alignment type alignment film was prepared. The alignment film material is an alignment film material for photo alignment films. The alignment film material is formed by adding a vinyl monomer after dissolving the precursor of the first polyimide p1, the...

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Abstract

The present invention provides an orientation film, an orientation film material, a liquid crystal display having the orientation film, and a method for forming the same. The orientation film material comprises a first polyimide (p1) precursor, a second polyimide (p2) and precursor thereof, and a vinyl monomer. The vinyl monomer is represented by general formula (1). P1-A1-(Z1-A2)n-P2 (1) (In general formula (1), P1 and P2 are independently acrylate, methacrylate, acrylamide, or methacrylamide; A1 and A2 are independently 1,4-phenylene, 1,4-cyclohexane, or 2,5-thiophene, or napthalene-2,6-diyl or anthracene-2,7-diyl; A1 and / or A2 are substituted by at least one fluorine group; Z1 is a -COO-, -OCO-, -O-, or -CONH- group or a single bond; and n is 0 or 1.).

Description

technical field [0001] The present invention relates to an alignment film, an alignment film material, a liquid crystal display device having the alignment film and a forming method thereof. Background technique [0002] A liquid crystal display device is used not only as a small display device such as a display unit of a mobile phone, but also as a large television. Although the TN (Twisted Nematic: Twisted Nematic) mode liquid crystal display device that has been frequently used in the past has a narrow viewing angle, in recent years, so-called IPS (In-Plane-Switching: In-Plane-Switching: In-Plane Switching) mode and VA are also being produced. (Vertical Alignment: vertical alignment) mode liquid crystal display device with a wide viewing angle. Among such wide viewing angle modes, the VA mode is adopted by many liquid crystal display devices because it can achieve high contrast. [0003] A liquid crystal display device has an alignment film that regulates the alignment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337C08F2/44C08F20/00C08G73/10
CPCC08G73/105C08G73/1075G02F2001/133742C08G73/1078C08F222/1006C08G73/1039C08L79/08G02F1/133723G02F1/1393C08G73/1067C08G73/1046G02F1/13363C08L2205/02C08F222/102G02F1/133742Y10T428/31721C08L2666/20
Inventor 水崎真伸仲西洋平
Owner MERCK PATENT GMBH
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