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Phase difference plate, method of manufacturing same, and display device

A retardation film and display technology, which is applied in instruments, electronic equipment, optics, etc., can solve the problems of difficulty in manufacturing low-cost retardation film and large number of processing steps, and achieve the purpose of preventing the decline of light use efficiency, reducing light loss, and bright display Effect

Active Publication Date: 2010-10-13
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this technique, the number of processing steps is large, and therefore, it is difficult to manufacture a low-cost retardation film

Method used

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  • Phase difference plate, method of manufacturing same, and display device
  • Phase difference plate, method of manufacturing same, and display device
  • Phase difference plate, method of manufacturing same, and display device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0084] 15. Example 1 (Example of forming grooves using a resist layer formed by electron beam lithography)

example 2

[0085] 16. Example 2 (Example of forming grooves using a flat plate mold formed by ultrashort pulse laser)

example 3

[0086] 17. Example 3 (Example of forming a groove using a substrate made of a material different from that used in Example 2)

[0087] 18. Example 4 (Example of forming grooves using mold roll formed by ultrashort pulse laser)

[0088] 19. Example 5 (Example of forming a groove using a substrate made of a material different from that used in Example 2)

[0089] Structure of retardation film 10

[0090] figure 1 (A) shows an example of the cross-sectional structure of the retardation film 10 according to the embodiment of the present invention. figure 1 (B) as viewed from its surface figure 1 Diagram of the substrate 11 in (A). In the retardation film 10 , patterns of groove regions 11A and 11B are formed on the surface of the substrate 11 , and the retardation layer 12 is formed in contact with the substrate 11 .

[0091] For example, the substrate 11 is made of a thermoplastic material such as plastic, more specifically, polymethyl methacrylate, polycarbonate, polystyren...

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Abstract

Provided is a phase difference plate which can be manufactured by a simple process and can suppress a decrease in light use efficiency. A phase difference plate (10) is provided with a phase difference layer (12) which is formed, being in contact with the surface of a substrate (11) on which trench regions (11A, 11B) are alternately patterned in a stripe shape. The trench region (11A) consists of a plurality of trenches (111a) each extending in a direction (d1) and the trench region (11B) consists of a plurality of trenches (111b) each extending in a direction (d2). The phase difference layer (12) has phase difference regions (12a, 12b) corresponding to the trench regions (11A, 11B), respectively. In the phase difference regions (12a, 12b), liquid crystal molecules (120) are oriented along the extension directions (d1, d2) of the trenches, respectively. Since the substrate surface is in contact with the phase difference layer, in other words, no orientation film is formed, it is possible to suppress occurrence of light loss. The pattern of the trench regions (11A, 11B) is formed by transfer using a pattern model by one operation.

Description

technical field [0001] The present invention relates to a retardation film using a liquid crystal material, a method of manufacturing a retardation film, and a display using such a retardation film. Background technique [0002] In recent years, the development of displays that allow three-dimensional display has progressed. As a three-dimensional display system, for example, as described in USP5,686,975, for example, a system has been proposed in which an image for the user's right eye and an image for the user's left eye are displayed on the screen of the display. , and can be viewed by users wearing a pair of polarized glasses. The system is obtained by providing a patterned retardation film on the front side of a display allowing two-dimensional display, such as a cathode ray tube display, a liquid crystal display, or a plasma display. In order to control the polarization states of light entering the right eye and light entering the left eye, in such a retardation film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/13G02F1/1335G02F1/13363G02B30/25
CPCG02F2413/05G02F2413/02B32B2457/20G02B5/045B32B2457/204G02F2001/133631G02F1/133555B29D11/00644G02F1/133636G02B5/3083G02F2202/023G02F2001/133638G02F2413/11G02F1/133634G02F1/133631G02F1/133638
Inventor 奥山健太郎片仓等小幡庆清水纯铃木真哉星光成井上纯一栗山晃人
Owner DEXERIALS CORP