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Backlight Modules and Display Devices

A backlight module and display panel technology, which is applied in identification devices, instruments, cooling/ventilation/heating transformation, etc., can solve the problem that the heat of the display panel cannot be diffused, and achieve the effect of reducing heat

Active Publication Date: 2022-08-02
CHONGQING HKC OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a backlight module and a display device, which can improve the problem that the internal heat of the display panel cannot be diffused by setting channels on the diffusion plate for heat dissipation

Method used

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  • Backlight Modules and Display Devices
  • Backlight Modules and Display Devices
  • Backlight Modules and Display Devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 As shown, as the first embodiment of the present application, a schematic cross-sectional view of a backlight module 100 is disclosed. The plate 130 , the diffuser plate 110 and the optical film layer 140 are respectively on the side of the back plate 120 close to the display panel 200 , the lamp plate 130 is arranged on the back plate 120 , and the diffuser plate 110 is arranged on the lamp On the plate 130, the optical film layer 140 is disposed on the diffusion plate 110; wherein the diffusion plate 110 includes a plurality of diffusion sheets 111, and the plurality of the diffusion sheets 111 are stacked and arranged, and each diffusion sheet 111 A plurality of through holes 111a are respectively provided on the diffuser plates 110, and the through holes 111a of two adjacent diffusers 110 partially overlap on the orthographic projection of the back plate 120; there is at least one channel 110a on the diffuser plate 110, so The channel 110a is formed b...

Embodiment 2

[0037] like Figure 5 As shown, as the second embodiment of the present application, a schematic diagram of a backlight module 100 is disclosed. The above solution of disposing the heat dissipation channel 110a of the diffuser plate 110 is only passive heat dissipation. In addition, active heat dissipation can also be provided, such as A cooling device is also provided, and the details are as follows: the backlight module 100 further includes a radiator 160, and the radiator 160 can use, for example, a dry cold air generator, a cooling fan, etc. Those skilled in the art can choose according to the actual situation. The application only takes the dry cold air generator as an example, and the dry cold air generator includes a dryer part for drying the air and a refrigerator part for cooling the air. And can include the structure of filter element (filter type, electrostatic adsorption type, etc.) filtering function, to perform dust removal and filtration on the output and input ...

Embodiment 3

[0045] like Figure 7 As shown, as the third embodiment of the present application, the present application also discloses a display device, comprising a display panel 200 and the above-mentioned backlight module 100 , the display panel 200 is disposed on the light-emitting surface of the backlight module 100 side. The display panel in this embodiment can be various backlight type display panels, such as TN (Twisted Nematic, twisted nematic) display panel, IPS (In-Plane Switching, in-plane switching) display panel, VA (Vertical Alignment, vertical alignment) Alignment type) display panel, MVA (Multi-Domain Vertical Alignment, multi-quadrant vertical alignment type) display panel.

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Abstract

The present application discloses a backlight module and a display device. The backlight module includes a backplane, a lamp plate, a diffuser plate, and an optical film layer. The lamp plate, the diffuser plate, and the optical film layer are respectively adjacent to the backplane. On one side of the display panel, the light plate is arranged on the back plate, the diffuser plate is arranged on the lamp plate, and the optical film layer is arranged on the diffuser plate; wherein, the diffuser plate includes A plurality of diffusion sheets, the plurality of diffusion sheets are arranged in layers, each of the diffusion sheets is respectively provided with a plurality of through holes, and the through holes of the adjacent two diffusion plates are on the upper part of the orthographic projection of the back plate Coincidence; there is at least one channel on the diffuser plate, and the channel is formed by a plurality of through holes on the diffuser plate. By arranging channels on the diffusion plate to dissipate heat, the problem that the heat inside the display panel cannot be dissipated can be improved.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, to a backlight module and a display device. Background technique [0002] With the advancement of society and the continuous improvement of display technology, people have higher and higher requirements for displays. Taking Mini / Micro LED displays as an example, the backlight of Micro / Mini LED displays is based on LED lighting. As the resolution and brightness requirements are getting higher and higher, the thickness of the display module is getting thinner and lighter, the number of LEDs per unit area is increasing, and the thickness of the diaphragm is decreasing, and even the space between the miniLED and the upper diaphragm is further compressed. . And when the LED is working, only 20-30% is converted into light energy, and the remaining 70%-80% are converted into heat energy. When the spacing of LEDs is shrinking, the driving current of a single LED is increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00H05K7/20
Inventor 万业袁海江
Owner CHONGQING HKC OPTOELECTRONICS TECH CO LTD