Backlight module and display device

A technology for backlight modules and light source components, applied in optics, nonlinear optics, instruments, etc., can solve the problems of uneven light output, difficulty in large size, and poor thinning, and achieve the effect of uniform light output and high display quality.

A technology for backlight modules and light source components, applied in optics, nonlinear optics, instruments, etc., can solve the problems of uneven light output, difficulty in large size, and poor thinning, and achieve the effect of uniform light output and high display quality.

CN106773294AActive Publication Date: 2017-05-31TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] Embodiments of the present application are described below in conjunction with the accompanying drawings.

[0034] Please also refer to Figure 1 to Figure 4 , the embodiment of the present invention provides a display device 100 . The display device 100 includes a stacked display panel 1 and a backlight module 2 , the backlight module 2 is used to provide a backlight for the display panel 1 . The display panel 1 may be a liquid crystal display panel, and the display device 100 is a liquid crystal display.

[0035] The backlight module 2 includes a backplane 21 and a plurality of light emitting units 22 spliced ​​in sequence and fixed on the backplane 21 . Each of the light emitting units 22 includes a light source assembly 221 and a light guide 222 disposed adjacent to the light source assembly 221 . The light guide 222 includes a main part 223 and an extension part 224, the main part 223 is fixed to the backboard 21, the main part 223 has a first reflective surface...

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PUM

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Abstract

The invention discloses a backlight module. The backlight module comprises a backboard and a plurality of light emitting units. The light emitting units are spliced and fixed to the backboard sequentially. Each light emitting unit comprises a light source component and a light guide piece. The light guide pieces are adjacent to the light source components. Each light guide piece comprises a body and an extension portion. The bodies are fixed to the backboard. Each body comprises a first reflection surface away from the backboard. Each extension portion is arranged at one end, away from the corresponding light source component, of the corresponding body, and comprises a second reflection surface away from the backboard. The second reflection surfaces are connected with the first reflection surfaces smoothly to form upper reflection surfaces of the light guide pieces. The upper reflection surfaces are used for reflecting light rays emitted by the light source components to the direction away from the backboard. Accommodating spaces are formed between the extension portions and the backboard, and are used for accommodating the light source components of the light emitting units. The backlight module emits light evenly. The invention further discloses a display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] At present, large size and thinning are a development trend of liquid crystal television (LCD TV). At the same time, it has gradually become the direction of technological development in the industry to control local dimming (Local dimming) in different areas on large-size TV backlights, so as to realize high-dynamic lighting rendering (High-Dynamic Range, referred to as HDR) precise light control. [0003] Traditional LCD TV modules can be divided into direct-type backlight modules and side-type backlight modules. The direct-type backlight module is affected by the size of the LED secondary lens and the light output angle, and it does not perform well in terms of thinning. The thickness of the side-type backlight module is thinner than that of the direct-type backlight module. However, the light output met...

Claims

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Application Information

Patent Timeline
31 May 2017
Publication
CN106773294A
IPC
G02F1/13357
CPC
G02F1/133605; G02F1/133608; G02F1/133615
Inventors
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