Side entry type backlight module and display device

A side-entry backlight and module technology, which is applied in the field of side-entry backlight modules and display devices, can solve problems such as light leakage and waste of light effect, and achieve the effect of improving light efficiency and reducing light leakage

Active Publication Date: 2017-12-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, part of the light emitted by the light source fails to enter the light guide plate, that is, there is a phenomenon of light leakage, resulting in a waste of light effect

Method used

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  • Side entry type backlight module and display device
  • Side entry type backlight module and display device
  • Side entry type backlight module and display device

Examples

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Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0032] see figure 1 , in the related art, the side-type backlight module 100 includes a plastic frame 11 , a back plate 12 , an LED light bar 13 , a light guide plate 14 and an optical film 15 . Wherein, the LED light bar 13 is fixed on the back plate 12 with heat-conducting adhesive. The LED light bar 13 includes a printed circuit board 131 and an LED light 132 disposed on the printed circuit...

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PUM

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Abstract

The invention relates to a side entry type backlight module and a display device; the side entry type backlight module comprises a back plate, a light guide plate and a light bar; the light guide plate is arranged on the back plate; the light bar comprises a printed circuit board and a lighting piece arranged on the printed circuit board; the side entry type backlight module further comprises a light leakage preventing component; the light leakage preventing component is arranged on the back plate, located between the light bar and the light guide plate, and extended along the width direction of the light guide plate; the light leakage preventing component comprises a groove, and the groove opening of the groove is faced to the light bar; the lighting piece is at least partially held in the groove. According to the embodiment of the invention, the entry ratio of the light emitted by the lighting piece in the light guide plate is increased through changing the light propagation direction, thus the leaked light is reduced and the light efficiency is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an edge-type backlight module and a display device. Background technique [0002] The backlight module is an important part of the liquid crystal display, and the backlight module is used to provide sufficient and uniform surface light source for the liquid crystal display. A common backlight module mainly includes a plastic frame, a backplane, a light source, a light guide plate, and an optical film. Among them, the backplane, light source, light guide plate and optical film are located in the plastic frame. Usually, the backlight module is divided into side-type backlight module and direct-type backlight module, wherein the side-type backlight module generally uses a light bar located on the side of the plastic frame as a light source. The light emitting surface of the light source faces the light incident surface of the light guide plate, and the light emitted by the light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133615G02B6/0031G02B6/0055G02F1/133603G02F1/133605G02B6/0046
Inventor 孙彦军
Owner BOE TECH GRP CO LTD
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