Unlock instant, AI-driven research and patent intelligence for your innovation.

Backlight module

A technology of backlight module and light beam, which is applied in the field of backlight module, and can solve the problems affecting the luminous effect of the luminous keyboard device, light loss, etc.

Inactive Publication Date: 2014-12-31
PRIMAX ELECTRONICS LTD
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the light passes through the light guide plate 110 and the transparent layer 130, the light passes through the entire transparent layer 130 and is projected upwards. At this time, the light will inevitably pass through the adhesive layer 170 and be lost, so as to affect the luminous effect of the luminous keyboard device.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlight module
  • Backlight module
  • Backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] In view of the defects of the prior art, the present invention provides a backlight module which can solve the problems of the prior art. see image 3 , which is a schematic side view of the structure of the backlight module in the first preferred embodiment of the present invention. The backlight module 2 includes a plurality of light emitting elements 20 (only one is shown in the figure), a light guide plate 21 , a light shielding element 22 and a light emitting circuit board 23 . The light guide plate 21 includes a side wall 211, a first reflective material 212 and a reflective ink layer 213, the side wall 211 is formed on the edge of a side 214 of the light guide plate 21, and a plurality of light emitting elements 20 are close to the side wall 211 , the first reflective substance 212 and the reflective ink layer 213 will be described later. The light-emitting circuit board 23 is located on the side 214 of the light guide plate 21 and is fixed on the reflective in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a backlight module. The backlight module comprises a light emitting element, a light guide plate and a light shielding element, wherein the light guide plate comprises a reflecting substance and the reflecting substance is coated on an upper surface of the light guide plate and the light guide plate is close to the light emitting element; the light shielding element is arranged on the reflecting substance and is close to the light emitting element. On one hand, when the light emitting element produces light beams and the light beams project into the light guide plate, part of the light beams is reflected by the reflecting substance and then again enters the light guide plate; on the other hand, when part of the light beams penetrates through the reflecting substance, the light shielding element absorbs the light beams to prevent light from leaking.

Description

technical field [0001] The present invention relates to a backlight module, and in particular to a backlight module used in electronic equipment. Background technique [0002] Backlight modules are usually used in display devices or luminous input devices. Taking the display device as an illustration, most electronic devices are usually equipped with a display device to provide a reminder function, so that the user can know the current status of the electronic device according to different contents displayed on the display device. Generally speaking, a display device includes a backlight module and a display panel. When the backlight module generates light beams and guides the light beams to be projected into the display panel, the display panel displays content thereon in response to the passing of the light beams. As for the luminous input device, it includes a backlight module and an input interface, wherein the input interface is a keyboard device, a tablet device, a to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/12F21Y101/02
Inventor 陈柏安何宣纬
Owner PRIMAX ELECTRONICS LTD