Waterproof surface-emitting panel

The innovative surface-emitting panel design with a grooved light guide plate and resin-sealed heat dissipation allows for flexible shape and size adjustments, addressing size limitations and manufacturing costs while ensuring waterproof integrity and uniform light emission.

JP7888204B1Active Publication Date: 2026-07-13TD LIGHTEC CO LTD
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Patent Information

Application Number
JP2026011824
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2026-01-28
Publication Date
2026-07-13
Estimated Expiration
2046-01-28

AI Technical Summary

Technical Problem

Conventional surface light-emitting panels housed in box bodies for waterproofing are limited in size and shape, leading to increased manufacturing costs and difficulty in adapting to different applications.

Method used

A waterproof surface-emitting panel design featuring a light guide plate with grooves for LED lamps, a heat dissipation portion sealed with resin, and a reflective tape covered by resin to prevent water ingress, allowing flexible shape and size modifications.

Benefits of technology

The design enables easy customization of shape and size while maintaining waterproof performance, preventing resin seepage and ensuring uniform light emission.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a waterproof surface-emitting panel and a method for manufacturing the same, which can be easily modified in shape and size. [Solution] A surface-emitting panel comprising: a light guide plate that diffuses light and has a surface that serves as a light-emitting surface; an LED lamp mounted on a printed circuit board; and a heat dissipation section having at least one bent portion, which is arranged to have a portion that contacts the back surface of the printed circuit board and a portion that contacts the surface of the light guide plate and / or the surface opposite it, wherein the space having the LED lamp mounted on the printed circuit board is sealed by the heat dissipation section and resin, and / or the periphery of the portion of the heat dissipation section that contacts the surface of the light guide plate and / or the surface opposite it, and the portion of the surface of the light guide plate and / or the surface opposite it that contacts the periphery of the heat dissipation section are covered with resin, and the seepage of resin into the gap between the heat dissipation section and the surface of the light guide plate and / or the surface opposite it is 10 mm or less.
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Citation Information

Patent Citations

  • Lighting system

    JP2001155523A

  • Energy reduction type light emission braille block

    JP2020176502A

  • Display unit and television receiving apparatus

    WO2013035664A1