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Parallax barrier element, method of producing the same, and display device

A technology for parallax barriers and display devices, applied to electrical components, optical components, optics, etc., can solve the problems of reduced verification accuracy, complicated manufacturing, and adverse effects on 3D image display, and achieve the effects of good dimensional accuracy and easy manufacturing

Inactive Publication Date: 2007-07-18
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the dimensional accuracy of the fence stripe pattern is lowered, and since the collation accuracy of the fence stripe pattern and the image display pixel pattern is lowered, there is a problem that 3D image display is adversely affected.
[0015] Moreover, in order to dye with iodine or dichroic dyes on the PVA film 50 utilizing resist patterning, it is necessary to introduce a new process that is not used in the existing liquid crystal display device manufacturing process, and there is another problem of making the manufacturing complicated. The problem

Method used

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  • Parallax barrier element, method of producing the same, and display device
  • Parallax barrier element, method of producing the same, and display device
  • Parallax barrier element, method of producing the same, and display device

Examples

Experimental program
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Embodiment approach 1

[0055] FIG. 1 is a cross-sectional view schematically showing a stereoscopic image display device according to Embodiment 1. As shown in FIG. The stereoscopic image display device of the present embodiment includes: a parallax barrier element 10A having a shutter function; an image display element 20 disposed on the back side of the parallax barrier element 10A (opposite to the observer, the same below); The element 20 is also attached to a backlight (not shown) on the rear side. The image display element 20 has a pixel portion 101 displaying an image for the right eye and a pixel portion 102 displaying an image for the left eye.

[0056]The parallax barrier element 10A has: a pair of transparent electrode substrates 1 , 2 made of glass or the like provided with transparent electrodes, for example; and a pair of polarizing plates 3 , 4 provided outside the pair of transparent electrode substrates 1 , 2 . The opposing surfaces of the pair of transparent electrode substrates 1 ...

Embodiment approach 2

[0069] In Embodiment 1, the case of using a pair of polarizing plates 3 and 4 was described, however, a retardation plate such as a λ / 4 plate or a λ / 2 plate may be used in combination with a polarizing plate if necessary. In Embodiment 2, the display principle of a stereoscopic image display device using a λ / 2 plate as a retardation plate will be described. In addition, as in Embodiment 1, the liquid crystal layer 11 of this embodiment is a parallel (homogeneous) oriented liquid crystal layer containing a liquid crystal material having a positive dielectric constant anisotropy, and has a retardation of λ / 2 when no voltage is applied. .

[0070] FIG. 4 is a cross-sectional view showing a display principle of three-dimensional image display by the stereoscopic image display device according to the present embodiment. Referring to FIG. 4 , the display principle when no voltage is applied to the liquid crystal panel 10A functioning as a parallax barrier element, that is, when a t...

Embodiment approach 3

[0079] In Embodiments 1 and 2, the case of using the parallel (homogeneous) aligned liquid crystal layer 11 containing a liquid crystal material having a positive dielectric constant anisotropy was described. In this embodiment, the case where the liquid crystal layer 11 in Embodiments 1 and 2 is replaced with a homeotropically aligned liquid crystal layer containing a liquid crystal material having a negative dielectric anisotropy will be described. Also, the vertically aligned liquid crystal layer has a retardation of λ / 2 when a voltage is applied.

[0080] A vertically aligned liquid crystal layer 11 containing a liquid crystal material with a negative dielectric anisotropy Δε has no applied voltage and an applied voltage compared to a parallel aligned liquid crystal layer 11 containing a liquid crystal material with a positive dielectric anisotropy. The state of orientation is just the opposite. Specifically, when no voltage is applied, as shown in FIGS. 3 and 5 , the liq...

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Abstract

A parallax barrier element has a pair of transparent electrode substrates each having a transparent electrode formed on them. In the gap between the pair of transparent electrode substrates, there are formed a barrier light-shielding portion for separating light of a first image viewable from a first direction and light of a second image viewable from a second direction that is different from the first direction, and a transmission portion for allowing the transmission of the first image and the second image. A liquid crystal layer is formed in the barrier light-shielding portion, and a translucent resin layer is formed in the transmission portion.

Description

technical field [0001] The present invention relates to a parallax barrier element capable of switching between different images and the same image from a plurality of viewpoints without special glasses and a manufacturing method thereof. Furthermore, the invention also relates to a display device having a parallax barrier element. Background technique [0002] Currently, various methods have been proposed for displaying a three-dimensional image without using glasses. As one of the above methods, a lenticular lens method is known. Lenticular lenses are formed by assembling multiple small lenses together, using lenticular lenses to control the direction of light travel so that images for the right eye reach the right eye and images for the left eye reach the left eye. However, in the lenticular lens system, there is a common problem that switching between a three-dimensional image and a two-dimensional image cannot be displayed. [0003] As another display method of a thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/22G02F1/13H04N13/00
Inventor 福岛浩高谷知男和田正一
Owner SHARP KK