display device
A display device and display surface technology, which is applied to identification devices, projection devices, instruments, etc., can solve the problems of inability to image, observers cannot observe at the same time, and multiple observers cannot observe at the same time, and achieves the effect of expanding the range of viewpoints
Active Publication Date: 2019-06-28
ORMON CORP
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- Application Information
AI Technical Summary
Problems solved by technology
A virtual image cannot be imaged near the light guide, therefore, the observer cannot observe the virtual image at the same time with both eyes at the same position
In addition, multiple observers cannot observe the virtual image at the same time at the same location
Method used
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Embodiment Construction
[0048] Hereinafter, a display device according to an embodiment of the present invention will be described with reference to the drawings. This display device includes a plate-shaped light guide plate, and an image display device disposed so as to face an incident surface formed on a side wall of the light guide plate. Moreover, between the image display device and the incident surface, an imaging lens that converts light from the image display device into converging light on the surface of the light guide plate parallel to the side opposite to the observer, that is, the exit surface, is arranged. A collimator lens that collimates the light from the image display device on the surface perpendicular to the exit surface. In addition, the image display device and the collimator lens constitute an image projection unit. In addition, a plurality of prisms are formed on the diffuser surface on the side opposite to the output surface of the light guide plate, and the plurality of pr...
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A display device (1), comprising: an image projection part (11, 13); and a light guide plate (14), which has a light guide plate (14) having a direction of propagation of light emitted from the image projection part and incident into the interior via an incident surface (14a) A plurality of deflection units (141) are arranged, and each deflection unit emits or radiates from a position different from each other in a direction orthogonal to the longitudinal direction of the incident surface (14a) in a predetermined area representing an image projected by the image projection unit. Lights emitted in different directions are emitted from the emitting surface (14c) at angles different from each other in the propagation direction; a mask (15), which redirects the light emitted from the emitting surface (14c) through the respective deflection portions toward the The light other than the light of the predetermined viewpoint is blocked, and the image projection unit makes the light emitted from the predetermined area become parallel light in the direction orthogonal to the longitudinal direction of the incident surface (14a).
Description
technical field [0001] The present invention relates to a display device capable of projecting images in the air. Background technique [0002] Currently, a display device that projects images in the air is being studied. In particular, in such a display device, a display device that transmits an image projected in the air using a light guide plate has been proposed so that other objects and an image projected in the air can be seen at the same time (for example, refer to Patent Document 1). [0003] For example, the display device disclosed in Patent Document 1 includes a display element that emits image display light, an emission mechanism having an optical system that forms a virtual image of an observation object, and a light guide. The light guide is a substrate, which has: a first surface, a second surface opposite to the first surface, a third surface different from the first surface and the second surface, and an emission surface arranged in front of the observer's ...
Claims
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IPC IPC(8): G02B27/22G02B6/00G02B17/08G09F9/00
CPCG02B6/003G02B6/0031G02B6/0038G02B6/00G02B6/0051G02B6/0053G02B27/30G03B21/147G03B21/28G03B35/24G02B30/27
Inventor 篠原正幸
Owner ORMON CORP