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View angle control element and display device provided with the same

A technology for viewing angle control and display devices, which can be used in identification devices, instruments, nonlinear optics, etc., and can solve problems such as being unable to see the screen display

Active Publication Date: 2010-03-24
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the privacy filter is pasted on the screen of the display device, the display of the screen cannot be seen from the horizontal direction.

Method used

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  • View angle control element and display device provided with the same
  • View angle control element and display device provided with the same
  • View angle control element and display device provided with the same

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Experimental program
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no. 1 approach

[0049] Hereinafter, a liquid crystal display device according to a first embodiment of the present invention will be described with reference to the drawings. In addition, here, as an example of the display device according to the present invention, a configuration including a liquid crystal display device as an image display device is exemplified.

[0050] figure 1 It is a schematic cross-sectional view showing a schematic configuration of the liquid crystal display device 1 according to the first embodiment of the present invention. in addition, figure 1 The actual cross-sectional structure is not shown for the purpose of showing the lamination order of main components of the liquid crystal display device 1 according to the first embodiment.

[0051] Such as figure 1 As shown, the liquid crystal display device 1 has: a liquid crystal panel 10 (image display device) for displaying images; 20 (view angle control element).

[0052] exist figure 1 In the example of , t...

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Abstract

Provided are a view angle control element, which limits a view angle without deteriorating image qualities (front qualities) when viewed from the front, and a display device provided with such view angle control element. A liquid crystal display device (1) is provided with a liquid crystal panel (10), and a view angle control film (20) for controlling the view angle of the liquid crystal panel (10). The view angle control film (20) is a laminated film having at least a liquid crystal film (21) and a linear polarization plate (22). In the liquid crystal film (21), liquid crystal molecules are solidified by being arranged with the long axis inclined in a prescribed azimuth direction from the normal line direction of the film surface. The linear polarization plate (22) of the view angle control film (20) and the linear polarization plate (14) of the liquid crystal panel (10) are arranged so that the polarization transmission axis is arranged to cross the long axis direction of the liquidcrystal molecule when viewed from the normal line direction.

Description

technical field [0001] The present invention relates to a viewing angle control element capable of controlling a viewing angle and a display device including the viewing angle control element. Background technique [0002] Generally, it is required that the display has as wide a viewing angle as possible, so that a clear image can be seen no matter from which viewing angle. In particular, liquid crystal displays, which have been widely used recently, have been developing various technologies related to widening viewing angles because liquid crystal itself has viewing angle dependence. However, depending on the usage environment, there may be cases where the appropriate viewing angle is narrow such that only the user himself can visually recognize the displayed content. In particular, notebook personal computers, portable data terminals (PDAs), and mobile phones are likely to be used in places where unspecified many people exist, such as trains and airplanes. In such a usag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13363G02F1/1335G09F9/00
CPCG02F1/13363G02F2413/08G02F1/133528G02F2413/04G02F2413/07G02F2001/133531G02F2413/105G02F2001/133638G02F2001/133633G02F1/133531G02F1/133633G02F1/133638
Inventor 薮田浩志高谷知男福岛浩
Owner SHARP KK
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