A kind of backlight module and display device

A technology of backlight module and light guide plate, which is applied in the direction of lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., and can solve problems such as folds of reflectors, affecting the lighting effect of backlights, and different thermal expansion rates. Achieve the effect of reducing the operating temperature, solving the problem of excessive local temperature, and improving the service life

Active Publication Date: 2019-03-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even though the lower surface of the first reflector 11 is attached to the heat sink 14, due to the difference in thermal expansion rate between the heat sink 14 and the first reflector 11, the lateral relative movement of the two materials during the expansion and contraction process results in wrinkles of the reflector. Directly affect the lighting effect of the backlight

Method used

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  • A kind of backlight module and display device
  • A kind of backlight module and display device
  • A kind of backlight module and display device

Examples

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Embodiment Construction

[0023] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0024] It should be noted that the orientation words "up" and "down" mentioned in the present invention all refer to the directions shown in the drawings.

[0025] As a first aspect of the present invention, a backlight module is provided, referring to figure 2 with image 3 ,in, figure 2 It is a schematic diagram of the three-dimensional structure of the backlight module provided by the present invention. image 3 for the backlight module along figure 2 The cross-sectional view obtained after cutting with the dotted line indicated by the middle arrow a. The backlight module includes a light guide plate 10, a first reflector 11, a light bar and a heat si...

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Abstract

The invention discloses a backlight module which comprises a light guide plate, a first reflecting piece, a lamp bar and a cooling fin. The light guide plate comprises a light inlet face and a light reflecting face. The first reflecting piece is arranged on the light reflecting face of the light guide plate. The lamp bar comprises a circuit board and a light-emitting part located on the installation face of the circuit board. The light emitting piece faces the light inlet face of the light guide plate. The circuit board is arranged on one side of the light reflecting face of the light guide plate, and is arranged on the same side of the first reflecting piece. The cooling fin is arranged on the surface, away from the installation face, of the circuit board. The invention further provides a display device. The cooling effect can be effectively improved through the backlight module.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device including the backlight module. Background technique [0002] The backlight module in the prior art, especially the commonly used structure of the mobile phone backlight module is as follows: figure 1 As shown, the first reflective sheet 11 adheres all the plastic frames 16 to form a seal, and after stacking other film materials inside the plastic frame 16 , the complete assembly of the backlight part is realized. When the assembled luminous part 13 is working, with figure 1 Taking the direction shown as an example, the lower side of the light-emitting element 13 is encapsulated by a reflective sheet, the upper surface of the light-emitting element 13 is glued to a flexible circuit board, the left, front, and rear sides are encapsulated by a plastic frame 16, and the right side is encapsulated by a light guide plate 10, so that the light-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S2/00F21V7/04F21V8/00F21V19/00F21V23/00F21V29/508
CPCF21S2/00F21V7/04F21V19/00F21V23/004F21V29/508
Inventor 于洪洋赵天笑杨瑞锋陈家兴杨毅
Owner BOE TECH GRP CO LTD
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