Lighting device manufacturing method, lighting device, surface light source device, display device

The described manufacturing method for lighting devices addresses the challenge of uniform light emission and brightness by using a reactive layer and photochromic alignment to form diffusion sections, resulting in thin, efficiently emitting devices with uniform brightness and improved production efficiency.

JP7757711B2Active Publication Date: 2025-10-22DAI NIPPON PRINTING CO LTD
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Patent Information

Application Number
JP2021176113
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-28
Publication Date
2025-10-22
Estimated Expiration
2041-10-28

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Abstract

To provide a manufacturing method of a lighting device which has high uniformity of light emission intensity and is capable of easily manufacturing a thin lighting device, a surface light source device, a display device, and such a lighting device.SOLUTION: A surface emitting device 20 includes a plurality of light-emitting units 22 arranged on a substrate 21, and a diffusing unit 23 formed at a position corresponding to the light-emitting unit 22 on the light emitting side of the light-emitting unit 22 and having a diffusing action of diffusing light. Further, a surface light source device 10 includes the surface emitting device 20 and an optical sheet unit 30 arranged on the light emitting surface of the surface emitting device 20.SELECTED DRAWING: Figure 2
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Citation Information

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