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Backlight module group and light emitting keyboard

A technology of backlight module and keyboard, which is applied in the direction of legends, electrical components, electric switches, etc., can solve the problem of light leakage and decrease in luminous intensity, and achieve the effect of reducing light leakage from side to side and avoiding the decrease of luminous intensity

Inactive Publication Date: 2016-02-24
DARFON ELECTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, one of the objectives of the present invention is to provide a backlight module and a luminous keyboard to solve the technical problems of light leakage and / or decrease in luminous intensity

Method used

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  • Backlight module group and light emitting keyboard
  • Backlight module group and light emitting keyboard
  • Backlight module group and light emitting keyboard

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Embodiment Construction

[0040] figure 1 It is an exploded view of the backlight module 100 according to an embodiment of the present invention. figure 2 for figure 1 A top view of the combined flexible circuit board 110 and reflective layer 120 of FIG.

[0041] Such as figure 1 and figure 2 As shown, the backlight module 100 includes a flexible circuit board 110 , a reflective layer 120 , a light shielding layer 111 and a light guide plate 130 . The flexible circuit board 110 is generally disposed in the middle area of ​​the light guide plate 130 , but can also be disposed in other areas of the light guide plate 130 . The flexible circuit board 110 is, for example, rectangular, but may also have other shapes. The embodiment of the present invention does not limit the shape of the flexible circuit board 110 . In one embodiment, the flexible printed circuit 110 can be FPC (Flexible printed circuit) which is well known in the industry.

[0042] The light-shielding layer 111 is disposed on the fl...

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PUM

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Abstract

The invention provides a backlight module group and a light emitting keyboard. The backlight module group comprises a flexible printed circuit board, a light-emitting element, a light shielding layer and a light guide plate, wherein the light-emitting element is arranged on the flexible printed circuit board; the light shielding layer is arranged on the flexible printed circuit board and encircles the whole light-emitting element; the light guide plate is provided with a through hole; the light-emitting element is arranged in the through hole; and the light shielding layer is positioned between the flexible printed circuit board and the light guide plate. The light-emitting element of the backlight module group provided by the invention is encircled by the light shielding layer, so that lateral light leakage of the light-emitting element can be reduced, and further reduction of the illuminating intensity of the backlight module group is avoided.

Description

technical field [0001] The invention relates to a backlight module and a luminous keyboard, and in particular to a backlight module with a light-shielding layer and a luminous keyboard. Background technique [0002] The backlight module of a traditional keyboard includes several light emitting diodes, and the light emitting diodes emit light sideways to provide key light. However, the light emitted from the side tends to leak through the gaps or spaces between the layers, resulting in light leakage and / or reduced luminous intensity of the backlight module. [0003] Therefore, there is an urgent need to propose a solution to the light leakage problem and / or the decrease of luminous intensity. Contents of the invention [0004] Therefore, one of the objectives of the present invention is to provide a backlight module and a luminous keyboard to solve the technical problems of light leakage and / or decrease in luminous intensity. [0005] One embodiment of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/83
CPCH01H13/83H01H2219/054H01H2219/06
Inventor 戴宏宇杨佳运
Owner DARFON ELECTRONICS (SUZHOU) CO LTD
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