US 8,297,784 B2Granted

Surface-emission unit and method for producing the same

AssigneeSharp Kabushiki Kaisha

InventorsToshiya Ishio, Mitsuru Hineno, Nobuo Ogata, Shinji Suminoe

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Abstract

A surface-emission unit to prevent irregularity in brightness from being generated is provided. The surface-emission unit is composed of light-emission element parts each having a light-emission element, aligned and arranged on a substrate two-dimensionally, and optical lenses each arranged on the substrate with respect to each light-emission element part, to diffuse light from the light-emission element, and a support part to fix the optical lens onto the substrate is arranged so as not overlap a line connecting the light-emission element part corresponding to the optical lens fixed by the support part, to another light-emission element part adjacent to the light-emission element part.

Claims10

Dependent claims

A surface-emission unit comprising:

a plurality of light-emission element parts each including a light-emission element, aligned and arranged on a substrate two-dimensionally;
and
a plurality of optical lenses each arranged on the substrate with respect to each of the light-emission element parts, the optical lenses being configured to diffuse light from the light-emission element, wherein
each of the optical lens is fixed to the substrate through one or more support parts, and
each of the support parts is arranged, such that none of the support parts of the light-emission element parts arranged in a horizontal direction completely overlap a line connecting the light-emission element parts arranged in the horizontal direction, and none of the support parts of the light-emission elements parts arranged in a vertical direction completely overlap a line connecting the light-emission element part arranged in the vertical direction in a part or a whole of a region in which the light-emission element parts are aligned and arranged two-dimensionally.

2 more elements

A method for producing the surface-emission unit, comprising:

preparing a plurality of light-emission element parts, each including a light-emission element;
preparing a substrate having a wiring and a plurality of lands to mount the plurality of light-emission element parts on the substrate;
preparing an optical lens for each of the plurality of light-emission element parts;
aligning and arranging the plurality of light-emission element parts on the plurality of lands of the substrate two-dimensionally;
and
fixing each optical lens on the substrate through one or more support parts with respect to each of the light-emission element parts, wherein
each of the support parts is arranged, such that none of the support parts of the light-emission element parts arranged in a horizontal direction completely overlap a line connecting the light-emission element parts arranged in the horizontal direction, and none of the support parts of the light-emission elements parts arranged in a vertical direction completely overlap a line connecting the light-emission element part arranged in the vertical direction in a part or a whole of a region in which the light-emission element parts are aligned and arranged two-dimensionally, in the step of fixing the optical lens.

4 more elements

Dependencies are inferred from the claim text.