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Backlight module, backlight adjustment method and display device

A backlight module, backlight adjustment technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as inability to apply edge-type backlights

Inactive Publication Date: 2019-03-05
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this regional dimming method in the prior art can only be applied to direct-lit backlights, but not to edge-lit backlights, so it has certain limitations

Method used

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  • Backlight module, backlight adjustment method and display device
  • Backlight module, backlight adjustment method and display device
  • Backlight module, backlight adjustment method and display device

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Embodiment 2

[0047] Embodiment 2 of the present invention provides a display device, including: a backlight module and a display panel, wherein the backlight module adopts the backlight module provided in Embodiment 1 above. For specific description, please refer to the corresponding content in Embodiment 1 above. , which will not be repeated here.

Embodiment 3

[0049] Figure 4 A flow chart of a backlight adjustment method provided by Embodiment 3 of the present invention, as shown in Figure 4 As shown, the backlight adjustment method is based on the backlight module in the first embodiment above, and the backlight adjustment method includes:

[0050] Step 101: The backlight source is working, and the light in at least a part of the area is directed to the dimming unit.

[0051] In practical applications, since the distance between the backlight source and the dimming unit is relatively short, the light generated in the area of ​​the backlight source facing the dimming unit will vertically irradiate the corresponding dimming unit.

[0052] Step 102: the dimming unit receives the light emitted from the corresponding area on the backlight source, and adjusts the light intensity of the received light accordingly.

[0053] Optionally, the dimming unit includes: a first plate and a second plate that are arranged in parallel and made of...

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Abstract

The invention discloses a backlight module, a backlight adjustment method and a display device. The backlight module comprises a backlight source and a light adjusting layer located on the light outlet side of the backlight source; the light adjusting layer comprises at least one light adjusting unit, and the light adjusting units are used for receiving light emitted by corresponding regions of the backlight source and correspondingly adjusting the light intensity of the received light. According to the backlight module, the backlight adjustment method and the display device, at least one light adjusting unit is arranged on the light outlet side of the backlight source, when the backlight source works, the light of at least part of the region can irradiate the light adjusting units, at the moment, the light adjusting units can correspondingly adjust the light intensity of the received light according to the actual needs and output the adjusted light to the corresponding region of a display panel, therefore, the backlight module can adjust the light intensity of the light irradiating at least part of the region of the display panel, and then regional light adjusting is achieved. In addition, the type of the backlight source is not limited, and a straight down type backlight source and a lateral approach type backlight source both can be applied.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module, a backlight adjustment method and a display device. Background technique [0002] In order to reduce the overall power consumption of the liquid crystal display and improve the contrast ratio, backlight adjustment technology has been applied in the field of liquid crystal display. [0003] At present, the adjustment of the backlight of the liquid crystal display is usually realized through a local dimming technology (Local Dimming). The local dimming process in the prior art is roughly as follows: [0004] Firstly, all the LED lights in the direct-lit backlight are divided into several independent backlight groups (LEDBlocks) on average, and the image to be displayed is correspondingly divided into several image blocks, and the backlight groups are in one-to-one correspondence with the image blocks; Display brightness of the pixel, and use the preset dynamic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133606G02F1/133615
Inventor 张衎张斌陈鹏名张强董殿正王光兴陈维涛
Owner BOE TECH GRP CO LTD
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