Illuminated keyboard and backlight module thereof

By using light emitting parts and light guide sheet structures in the keyboard backlight module, the light is guided to the key cap, solving the problem of difficult keyboard buttons in low-light environments, and achieving higher brightness keyboard lighting.

CN112490046BActive Publication Date: 2025-02-07CHICONY POWER TECH CO LTD
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Patent Information

Application Number
CN201910920083.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-09-12
Filing Date
2019-09-26
Publication Date
2025-02-07
Estimated Expiration
2039-09-26

AI Technical Summary

Technical Problem

When using a physical keyboard in an environment with unclear or no light, it is difficult for users to find the correct keys, resulting in inconvenience in use.

Method used

A luminescent keyboard is designed, and its backlight module includes a light source assembly and a light guide sheet. The light source assembly is composed of a light emitting member, and the light guide sheet has a through hole, a light-in-the-light concave and a light-out concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and concave and convex part. These structures guide the light emitted by the light emitting member to the key cap to ensure that the keyboard can be clearly illuminated in a low-light environment.

Benefits of technology

It realizes the clear visible keyboard keys in low-light environments, improving the user's operation convenience in unbright conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention is a backlight module, which is suitable for an illuminated keyboard. The backlight module includes a light source assembly and a light guide. The light guide has a top surface, a bottom surface, a through hole, a light-entering concave-convex portion, and a light-emitting concave-convex portion. The light source assembly includes a light-emitting component, which is used to emit a light. The size of the through hole is smaller than the size of the light-emitting component, the light of the light-emitting component is toward the through hole, the light-entering concave-convex portion is located on at least one of the top surface and the bottom surface and adjacent to the through hole, the light-emitting concave-convex portion is located on the bottom surface, and the distance between the light-emitting concave-convex portion and the through hole is greater than the distance between the light-entering concave-convex portion and the through hole. The present invention also discloses an illuminated keyboard.
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Citation Information

Patent Citations

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    CN110208899A

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    CN206505860U

  • Optical plate and backlight module using the same

    US20090010005A1