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Backlight module for keyboard

A technology for backlight modules and keyboards, applied in electrical components, electrical switches, circuits, etc., can solve the problems of insufficient light efficiency, light restriction, insufficient halo, etc., and achieve the effect of improving the position of the light source and increasing the area where the light source diverges.

Active Publication Date: 2019-05-21
QUNGUANG OPTOELECTRONICS SUZHOU
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Although the existing backlight module has the effect of providing keyboard backlight, there are still the following problems in the actual use process. Since the light-shielding sheet is directly attached to the light guide plate, the light projected from the light guide plate can be affected. Constraints, thereby affecting the light efficiency of the backlight module
In addition, since the backlight module is installed under the iron plate under the keycap, it is easy to cause problems of insufficient light effect and insufficient halo, which need to be improved urgently

Method used

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  • Backlight module for keyboard

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Embodiment Construction

[0024] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the attached drawings are only for reference and illustration, and are not used to limit the present invention.

[0025] see figure 1 As shown, the present invention provides a backlight module for a keyboard, which mainly includes a reflective sheet 10 , a light guide plate 20 and a composite layer 30 .

[0026] The reflective sheet 10 is mainly used to assist the light emitted by the light emitting unit to reflect and conduct between the light guide plates 20 .

[0027] The light guide plate 20 has a bottom surface 21 and a light emitting surface 22 formed behind the bottom surface 21 , wherein the bottom surface 21 and the upper surface of the reflective sheet 10 are in contact with each other, so that the light guide plate 20 can fully cover the reflective sheet 10 .

[0028] The composite layer 30 of this embodiment mainly includes a main...

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Abstract

The invention is a backlight module for a keyboard. The backlight module comprises a reflector sheet, a light guide plate and a composite layer, wherein the light guide plate is covered on a surface of the reflector sheet, the composite layer is arranged above the light guide plate and comprises a main body layer and a light guide layer arranged on one side of the main body layer. Thus, the backlight module can improve the backlight effect and improve the problem of insufficient halo around keycaps.

Description

technical field [0001] The invention relates to the technical field of a backlight module, in particular to a backlight module for a keyboard. Background technique [0002] Using the keyboard as a communication tool between electronic products and users has been quite common and widely used in electronic products such as personal computers, notebook computers, home phones and remote controls. It is not only easy to operate but also quite convenient to use. convenience and stability. [0003] In order to allow people’s eyes to clearly see the symbols on each key in an environment with insufficient light, some operators have added technologies such as light guide plates and light sources to the keyboard, and developed a backlit keyboard with a backlight module, so that The light generated by the backlight module can be projected onto the back of each keycap to form a backlight effect, so that the user can clearly see the characters and symbols on each keycap, so as to further...

Claims

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Application Information

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IPC IPC(8): H01H13/83
Inventor 张家维汪光申陈佳鑫
Owner QUNGUANG OPTOELECTRONICS SUZHOU
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