Optical element laminate, and manufacturing method therefor, backlight and liquid crystal display device
A technology for optical components and laminates, applied in the directions of optical components, optical components, chemical instruments and methods, etc., can solve the problems of unfavorable deformation of optical components, insufficient rigidity of optical components, irregular brightness, etc., to improve the lack of rigidity, inhibit the Squeak noise, warpage suppression effect
Inactive Publication Date: 2010-12-08
SONY CORP
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- Abstract
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- Claims
- Application Information
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Problems solved by technology
When the weight and size of the optical element itself increases, the optical element is disadvantageously deformed because the rigidity of the optical element becomes insufficient
The above-mentioned deformation of the optical element adversely affects the optical directivity toward the display surface, and as a result, a serious problem occurs, that is, brightness irregularity
Method used
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no. 1 example
[0113] (1) First embodiment (an example of an optical element group wrapping a supporting member and an optical element)
[0114] (2) Second embodiment (an example of an optical element group having an opening at a corner)
no. 3 example
[0115] (3) Third Embodiment (an example in which a reflective polarizer is arranged outside)
no. 4 example
[0116] (4) Fourth Embodiment (an example of imparting an optical function to a package member)
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Abstract
Provided is an optical element laminate in which the lack of rigidity of an optical element is improved while an increase in the thickness of a liquid crystal display device is suppressed, and the display characteristics of the liquid crystal display device are not degraded. The optical element laminate is provided with a plate-shaped support having a first main surface and a second main surface, and an optical element having the form of a film or a sheet laminated on the first main surface and / or the second main surface of the support. The peripheral edge of the laminated optical element is bonded to at least two opposite edges of the support, and the optical element and the support are tightly bonded. The thickness (t) of the support, the peripheral length (L) of the support, and the tension (F) of the optical element satisfy the relationship 0 <= F <= 1.65 x 10<4> x t / L in an environment at a temperature of 70 DEG C.
Description
technical field [0001] The present invention relates to an optical element laminate, a manufacturing method thereof, and a backlight and a liquid crystal display device each including the optical element laminate. In particular, the present invention relates to an optical element laminate that improves display characteristics of a liquid crystal display device. Background technique [0002] Hitherto, in liquid crystal display devices, many optical elements have been used in order to improve viewing angle, luminance, and the like. As the above-mentioned optical elements, for example, film-shaped and sheet-shaped materials such as diffusion films and prism sheets are used. [0003] figure 1 The structure of a conventional liquid crystal display device is shown. Such as figure 1 As shown in , this liquid crystal display device includes: a light-emitting device 101 that emits light; a diffusion plate 102 that diffuses the light emitted from the light-emitting device 101; a p...
Claims
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IPC IPC(8): F21V17/00F21S2/00G02B5/02G02F1/1333G02F1/13357F21Y103/00
CPCG02B6/0088B29D11/0073G02F1/133615B32B27/00G02F2201/54G02F2202/28G02F2001/133607G02B6/0081G02F2202/025G02F1/133606G02B6/0065G02B6/0093G02F2001/133322G02F2201/086G02F2201/083G02F2203/68G02F2202/023G02F2001/133317G02F1/13362C09K2323/03G02F1/133317G02F1/133322G02F1/133607Y10T428/23Y10T428/24777
Inventor 林弘志太田荣治细谷健工藤泰之山北茂洋柿沼正康石森拓新开章吾前川欣之三宅正美神野洋平佐佐木文子堀井明宏
Owner SONY CORP