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Photo-orienting illumination device

An illumination device and light orientation technology, applied in optics, optical components, nonlinear optics, etc., can solve problems such as scratches and dust, and achieve the effect of suppressing rotation offset and good orientation characteristics

Active Publication Date: 2014-04-30
WI A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in this cloth rubbing method, it is pointed out that there are various disadvantages such as generation of static electricity, generation of scratches on the surface of the alignment film, and generation of dust.

Method used

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Embodiment Construction

[0094] figure 1 It is a figure which shows the structure of the light direction irradiation apparatus concerning embodiment of this invention. The directed light irradiation device 1 of the present embodiment includes a polarized light irradiation unit 2 and a scanning unit as main components. The polarized light irradiation unit 2 is a unit that imparts alignment characteristics to the alignment film by irradiating an ultraviolet light beam to the alignment film formed on the surface of the substrate 9. In this embodiment, the polarized light irradiation unit 2 includes a polarizing unit 3 and a mirror. 21a, an ultraviolet irradiation unit 21 of an ultraviolet irradiation light source 21b. In addition, in this embodiment, ultraviolet rays are used as irradiation light, but irradiation light of other wavelength bands may also be used. At this time, an irradiation light source corresponding to the wavelength band used is used.

[0095] exist figure 2 shows a side cross-sec...

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Abstract

A photo-orienting illumination device having good orienting characteristics and comprising: a polarizing means (3) comprising a plurality of unit polarizers (31a-f) arranged adjacent in the adjacency direction; a scanning means that scans in a prescribed scanning direction ultraviolet rays from a polarized light irradiation means (2) on to a substrate (9) mounted on a stage (4), by moving at least either the stage (4) or the polarized light irradiation means (2); and polarizing direction detection means (6a-f) that enable the detection, for each unit polarizer (31a-f), of the polarizing direction of the ultraviolet light emitted from the unit polarizers (31a-f).

Description

technical field [0001] The present invention relates to a photo-alignment irradiation device used in the field of liquid crystal display panel manufacturing, especially for imparting orientation to an alignment film on a substrate used in a liquid crystal display device so that liquid crystal molecules are aligned in a desired angle and direction . Background technique [0002] With the expansion of use and increasing demand in the liquid crystal display field in recent years, it is strongly required to improve the viewing angle, contrast ratio, animation performance display, etc., which are disadvantages of conventional liquid crystal display devices. In particular, on a liquid crystal display substrate, in an alignment film that imparts alignment to liquid crystal molecules, equalization of alignment directions, provision of pretilt angles, and formation of multiple regions in a single pixel (multidomain) are performed. ) and other improvements. [0003] Conventionally, ...

Claims

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Application Information

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IPC IPC(8): G02F1/1337G02B5/30G02F1/13
CPCG02F2001/133757G02F1/1337G02B5/3025G02F1/133788G02F1/13G02F1/1303G02F1/133757
Inventor 大谷义和内山一荣立川洁远藤润二川越康弘尹炯烈桥诘幸司
Owner WI A