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Optical device and display device

A technology for optical equipment and display devices, applied in optics, optical components, light guides, etc., and can solve problems such as image blurring effects

Active Publication Date: 2021-05-28
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, in the large viewing angle part where the emission angle γ = 60° or more, the error of the shape has a large influence on the blurring of the image.

Method used

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  • Optical device and display device
  • Optical device and display device
  • Optical device and display device

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Experimental program
Comparison scheme
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no. 1 approach

[0038] refer to Figure 1 to Figure 14 , the display device 1A according to the first embodiment of the present invention will be described in detail.

[0039] (Structure of Display Device 1A)

[0040] figure 1 It is a perspective view showing the configuration of the display device 1A. In the instructions below, the figure 1 The +X direction is described as the front, the -X direction as the rear, the +Y direction as the right, the -Y direction as the left, the +Z direction as the upper side, and the -Z direction as the lower side.

[0041] Such as figure 1 As shown, the display device 1A has: a first stereoscopic image display device (optical device) 2 , a second stereoscopic image display device (optical device) 3 , and a two-dimensional image display device 4 . The size of the first stereoscopic image display device 2, the second stereoscopic image display device 3, and the two-dimensional image display device 4 parallel to the YZ plane is approximately the same si...

no. 2 approach

[0097] Other embodiments of the present invention will be described below. In addition, for convenience of description, the same reference numerals are used for members having the same functions as those described in the above-mentioned embodiments, and description thereof will be omitted.

[0098] based on Figure 15 and Figure 16 , the configuration of the display device 1B of this embodiment will be described.

[0099] Figure 15It is a perspective view showing the structure of the display device 1B.

[0100] The display device 1B has a first stereoscopic image display device (optical device) 5 and a second stereoscopic image display device (optical device) 6 instead of the first stereoscopic image display device 2 and the second stereoscopic image display device in the first embodiment 3.

[0101] refer to Figure 16 , the first stereoscopic image display device 5 and the second stereoscopic image display device 6 will be described. In addition, since the first ste...

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PUM

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Abstract

The first stereoscopic image display device (2) is equipped with a light guide plate (20) having a plurality of reflection members (31a, 31b, 31c), and each reflection member (31a, 31b, 31c) is perpendicular to the emission surface (21). The plane in the direction of the incident light defines four quadrants divided by two straight lines that are inclined at 45° relative to the direction of incident light to each reflective member (31a, 31b, 31c) and are perpendicular to each other, as each reflective member (31a , 31b, 31c) are the four quadrants of the origin, the light after the optical path has been changed by each reflecting member (31a, 31b, 31c) is emitted to the quadrant adjacent to the quadrant where the incident light enters, thus, even When the observer observes the stereoscopic image from a high angle with respect to the normal direction of the surface of the light guide plate, the observer can also see the undistorted stereoscopic image.

Description

technical field [0001] The present invention relates to an optical device and a display device for displaying stereoscopic images. Background technique [0002] Conventionally, an image display device disclosed in Patent Document 1, for example, is known as an optical device for displaying a stereoscopic image. [0003] The image display device disclosed in Patent Document 1 includes: a light guide plate, a light source provided at an end of the light guide plate, a first display pattern having a plurality of first prisms formed on the back surface of the light guide plate, and a first display pattern having a plurality of first prisms formed on the light guide plate. The second display pattern of the plurality of second prisms on the back. Furthermore, the first display pattern forms a first image on the surface side of the light guide plate using the plurality of first prisms, and the second display pattern forms the second image on the surface side of the light guide pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B30/33G03B35/24
CPCG03B35/24G02B6/00G02B30/26G02B5/045G02B6/0016H04N13/317H04N13/359G02B30/32
Inventor 广瀬勇司冈安裕田中景一朗大角吉正田上靖宏奥田满
Owner ORMON CORP