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Liquid crystal display panel and liquid crystal display panel manufacturing method

A liquid crystal display panel and manufacturing method technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of inability to use, decrease in productivity, complicated manufacturing process, etc., and achieve the effect of ensuring orientation ability and high productivity

Inactive Publication Date: 2009-04-08
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the technique disclosed in the gazette of Japanese Patent Application Laid-Open No. Hei 5-88177 has a problem in that only materials having photosensitive properties can be applied to the alignment film, and it is not possible to use materials that have been stably used in production so far and are heat-resistant Materials with excellent properties of durability, mechanical strength, chemical stability and voltage retention
Also, the technique disclosed in the gazette of Japanese Patent Application Laid-Open No. Hei 8-114804 has problems in that the manufacturing process is complicated and the productivity is lowered because it is necessary to form an alignment film of a laminated structure
Furthermore, the technique disclosed in the gazette of Japanese Patent Application Laid-Open No. Hei 3-209220 has a problem in that the method of adjusting the orientation of the polymer chains of the alignment film is imprecise, and thus the method is still insufficient for practical use

Method used

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  • Liquid crystal display panel and liquid crystal display panel manufacturing method
  • Liquid crystal display panel and liquid crystal display panel manufacturing method
  • Liquid crystal display panel and liquid crystal display panel manufacturing method

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Experimental program
Comparison scheme
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Embodiment 1

[0069] (1) Construction and operation of this embodiment

[0070] figure 1 A cross-sectional view of the liquid crystal display panel 1 applied to the liquid crystal display device of Embodiment 1 of the present invention is shown in a partially enlarged form. The liquid crystal display device of this embodiment is a transmissive type or a reflective type, and a polarizing plate or the like is provided on the front side surface of the liquid crystal display panel 1, which is figure 1 Wait for the upper side. In the transmissive type, the backlight device is provided on the rear surface side of the liquid crystal display panel 1, which is figure 1 the lower side in , but in reflective, the front light is set at figure 1 The upper middle side is the front surface side of the liquid crystal display panel 1 .

[0071]The liquid crystal display panel 1 includes liquid crystal interposed between a TFT array substrate 2 and a CF substrate 3 . Here, the CF substrate 3 is manufact...

Embodiment 2

[0101] Figure 6 It is a perspective view showing a TFT array substrate applied to a liquid crystal display panel according to Embodiment 2 of the present invention, in order to be compatible with figure 2 compare to. In this TFT array substrate 22, not the surface shape of the insulating film 11 but the surface shape of the electrode 12 forms a groove shape, and the shape of the surface electrode 12 formed with the alignment film 13 forms a groove shape. The liquid crystal display panel of this embodiment is formed similarly to the liquid crystal display panel 1 of Embodiment 1, except that the shape of the groove is processed.

[0102] Specifically, in the TFT array substrate 22 according to the present embodiment, the insulating film 11 is formed on the glass substrate 10 with a fixed film thickness in a form similar to that described above in connection with Embodiment 1. In addition, after sequential formation of ITO, aluminum or silver, etc., a photoresist is patterne...

Embodiment 3

[0105] Figure 7 It is a perspective view showing a TFT array substrate applied to a liquid crystal display panel of a liquid crystal display device according to Embodiment 3 of the present invention, to be used with figure 2 forms a contrast. This TFT array substrate 32 is structured such that the surface shape of the glass substrate 10 as an insulating substrate is directly formed into a groove shape instead of the surface shape of the insulating film 11, and the shape of the surface of the glass substrate 10 on which the orientation film 13 is manufactured is formed into a concave shape. slot shape. The liquid crystal display panel of this embodiment is formed similarly to the liquid crystal display panel 1 of Embodiment 1 except for the difference in the shape of the processed grooves. It should be noted that, despite the Figure 7 The insulating film is omitted in the example of , but an insulating film may be provided if necessary.

[0106] Specifically, in the TFT ...

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Abstract

It is possible to provide a liquid crystal display panel and a liquid crystal display panel manufacturing method having a higher productivity and capable of assuring a sufficient anchoring intensity and image quality as compared in the conventional technique. An orientation film (13) is created by a plane having a groove shape formed repeatedly in the direction orthogonally intersecting a groove M extending in a predetermined direction, thereby giving an orientation capability to the orientation film (13).

Description

technical field [0001] The present invention relates to a liquid crystal display panel and a manufacturing method of a liquid crystal display device, and can be applied to, for example, TN (Twisted Nematic, twisted nematic), ECB (Electrically Controlledbirefringence, electrically controlled birefringence), STN (Super Twisted Nematic, super twisted nematic) ) and IPS (In-Plane Switching, in-plane switching) liquid crystal modes. Compared with the prior art apparatus and method of providing an alignment ability to an alignment film by providing a groove shape to the lower surface of the alignment film, the present invention can secure high productivity and sufficient anchoring strength and image quality. Background technique [0002] Conventionally, in liquid crystal display panels of various liquid crystal modes such as TN, ECB, STN, and IPS modes, liquid crystal molecules are aligned to a fixed direction through an alignment process, and various methods have been proposed fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337G02F1/13363G02F1/13G02F1/1343G02F1/1333
CPCG02F2001/133757G02F1/133784G02F1/133753G02F1/133345G02F1/133707G02F2001/133776G02F1/133757G02F1/133776G02F1/1333G02F1/13363G02F1/1337
Inventor 玉置昌哉
Owner SONY CORP