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Reflective liquid crystal display device and method of manufacturing the same

A technology of a liquid crystal display device and a manufacturing method, which are applied in the directions of static indicators, nonlinear optics, instruments, etc., can solve the problem that the polarization separation optical system cannot be used with a reflective liquid crystal display device, the actual effectiveness is very different, and cannot be completely covered. and other problems to achieve the effect of avoiding breakdown phenomenon

Inactive Publication Date: 2005-04-20
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in Japanese Unexamined Patent Application Publication No. 2001-5003, in the orientation along the pixel side, the polarization separation optical system using PBS cannot be used in a reflective liquid crystal display device, and the reflective liquid crystal display device Little practicality specifically as a projection display unit
In order to avoid this problem, when the second alignment film is formed in the diagonal direction of the pixel, theoretically, even if the first alignment film is formed from any direction, there is an area that cannot be completely covered in the inter-pixel groove, so Technology in Japanese Unexamined Patent Application Publication No. 2001-5003 does not work
Therefore, the technique is far from being practically effective

Method used

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  • Reflective liquid crystal display device and method of manufacturing the same
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  • Reflective liquid crystal display device and method of manufacturing the same

Examples

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example

[0119] Next, specific features of the reflective liquid crystal display device according to this embodiment will be described with reference to examples. Before describing these examples, the characteristics of a related art reflective liquid crystal display device as a comparative example will be described below.

example 1-1 and 1-2

[0125] Next, Examples 1-1 and 1-2 will be described below. Experimental samples of the reflective liquid crystal display device were formed basically in the same manner and with the same specifications as in the above comparative example, except that the alignment films were on the pixel electrodes. More specifically, after cleaning the glass substrate on which the transparent electrode is formed and the silicon driving substrate on which the aluminum electrode serving as the reflective pixel electrode is formed, an alignment film is formed by evaporation using the following method, and then the A vertical liquid crystal material having a negative dielectric anisotropy Δε manufactured by Merck was injected between the substrates to form a reflective liquid crystal display device (as in Example 1-1). The specifications of the silicon drive substrate were the same as in the above comparative example, so the pixel spacing was 9 μm, and the groove width between the pixels was 0.6 ...

example 2-1 and 2-2

[0130] Next, Examples 2-1 and 2-2 will be described below. In these examples, the alignment film on the pixel electrode has a structure corresponding to FIG. 10A , that is, in this structure, the vertical vapor deposition film can serve as a base film for the first oblique vapor deposition alignment film and the second oblique vapor deposition alignment film form. An experimental sample of a reflective liquid crystal display device was formed by the same method and the same specifications as in the above-mentioned comparative example, except for a part related to film formation.

[0131] The method of forming the alignment film will be described below. As shown in Figures 13A-13C, a clean silicon driven substrate is introduced into an evaporation apparatus 80 with a substrate rotation system in which the angle of incidence of the evaporated particles 83 with respect to the substrate normal direction can be varied and the incident direction of the vapor-deposited particles 83...

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Abstract

In a reflective liquid crystal display device according to the present invention, the breakdown phenomenon in long-term driving due to the asymmetric structure of the groove side surfaces between pixels can be avoided, and the reliability of long-term driving can be obtained. In the thickness direction, on the first side of the inter-pixel groove on the cross-section of the pixel electrode substrate, a first oblique vapor deposition alignment film is formed by vapor deposition, and on the second side facing the first side, a first oblique vapor deposition alignment film is formed by vapor deposition. The second oblique vapor deposition alignment film. Thereby, the film structure of the two sides of the inter-pixel groove in cross-section becomes symmetrical, so that the breakdown phenomenon in long-term driving due to the asymmetric structure of the side of the inter-pixel groove can be avoided.

Description

technical field [0001] The present invention relates to a reflective liquid crystal display device including a reflective pixel electrode, a method of manufacturing a reflective liquid crystal display device, and a liquid crystal display unit, such as a reflective liquid crystal projector that displays an image by using the reflective liquid crystal display device . Background technique [0002] In recent years, with the improvement of the definition, miniaturization and brightness of the projection display, it is possible to reduce the size of the whole machine and display it with high definition, and it is expected to have a reflective device with higher light use efficiency, as the display of the projection display The device industry has become the focus of attention and has been put into practical use. A known reflection type device is an active type reflection type liquid crystal device in which liquid crystal is injected between a pair of substrates facing each other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/1337G02F1/139
CPCG02F1/133734G02F1/1393G02F2203/02G02F1/133742G02F1/133757G02F1/1337
Inventor 桥本俊一
Owner SONY GRP CORP
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