DISPLAY DEVICE, ELECTRONIC APPARATUS AND LIGHTING DEVICE
First Claim
Patent Images
1. A display device, comprising:
- a lighting device; and
a display panel that faces the lighting device,the lighting device including;
a first light source substrate that includes a first surface on which a first light emitting element are mounted;
a second light source substrate that includes a second surface on which a second light emitting element are mounted;
a first light source support member that holds the first light source substrate;
a second light source support member that holds the second light source substrate;
a light guide element that faces the first surface and the second surface; and
a light source driver that controls the first light emitting element and the second light emitting element, the light source driver controlling an amount of light to be emitted from the first light emitting element and the second light emitting element in accordance with a mode in which the display panel is driven.
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Accused Products
Abstract
In a lighting device of a display device, a plurality of light emitting elements are mounted on a surface of a light source substrate, and the light source substrate is supported by a light source support member by means of a positioning (fixing) structure such as a metal screw. The plurality of light emitting elements are divided into a plurality of blocks, and the emission light amount can be controlled with respect to each of the blocks. Although the head of the screw is exposed on the surface of the light source substrate, the screw is located between adjacent ones of the blocks. Therefore, even though the illuminating light intensity becomes partially discontinuous owing to the presence of the screw, degradation of display quality originating from such discontinuity can be suppressed.
7 Citations
16 Claims
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1. A display device, comprising:
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a lighting device; and a display panel that faces the lighting device, the lighting device including; a first light source substrate that includes a first surface on which a first light emitting element are mounted; a second light source substrate that includes a second surface on which a second light emitting element are mounted; a first light source support member that holds the first light source substrate; a second light source support member that holds the second light source substrate; a light guide element that faces the first surface and the second surface; and a light source driver that controls the first light emitting element and the second light emitting element, the light source driver controlling an amount of light to be emitted from the first light emitting element and the second light emitting element in accordance with a mode in which the display panel is driven. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device, comprising:
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a lighting device; and a display panel that faces the lighting device, the lighting device including; a first light source substrate that includes a first surface on which a plurality of first light emitting elements are mounted; a second light source substrate that includes a second surface on which a plurality of second light emitting elements are mounted; a first light source support member that holds the first light source substrate; a second light source support member that holds the second light source substrate; a light guide element that faces the first surface and the second surface; and a light source driver which controls the plurality of first light emitting elements and the plurality of second light emitting elements, the light source driver controlling a first amount of light to be emitted from the plurality of first light emitting elements and a second amount of light to be emitted from the plurality of second light emitting elements in accordance with a mode in which the display panel is driven. - View Dependent Claims (8, 9, 10)
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11. A display device, comprising:
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a lighting device; and a display panel that faces the lighting device, the lighting device including; a first light source substrate that includes a first surface on which a first light emitting element mounted, the first light emitting element emitting a first light; a second light source substrate that includes a second surface on which a second light emitting element mounted, the second light emitting element emitting a second light; a first light source support member that holds the first light source substrate; a light guide element that faces the first surface and the second surface; a light source driver which controls the first light emitting element and the second light emitting element, the light source driver controlling the first light and the second light in accordance with a mode in which the display panel is driven; and a first positioning structure is located between the first light emitting element and a first side of the first light source substrate, the first side being closest to the second light source substrate among all of a plurality of sides of the first light source substrate, and the first positioning structure fixing the first light source substrate to the first light source support member. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification
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Current Assignee138 East LCD Advancements Limited (Vector Capital Corporation)
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Original AssigneeSeiko Epson Corporation (Seiko Group)
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InventorsURANO, Nobutaka, MOMOSE, Yoichi
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current362/613
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CPC Class CodesG02B 6/0011 the light guides being plan...G02B 6/0068 Arrangements of plural sour...G02B 6/0073 Light emitting diode [LED]G02B 6/009 of the light source in the ...G02B 6/0091 of the light source relativ...G02F 1/133601 for spatial active dimmingG02F 1/133615 Edge-illuminating devices, ...
