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Backlight Modules and Display Equipment

A backlight module and backlight technology, which can be used in static indicators, semiconductor lamps, instruments, etc., and can solve problems such as uneven brightness

Active Publication Date: 2022-07-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a backlight module and a display device to alleviate the technical problem of uneven brightness in the existing LED backlight module

Method used

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  • Backlight Modules and Display Equipment
  • Backlight Modules and Display Equipment
  • Backlight Modules and Display Equipment

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the ...

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Abstract

The application provides a backlight module and a display device. The backlight module includes a backlight source and a driving circuit for driving the backlight source. The backlight source includes a plurality of backlight units arranged in an array, and the backlight unit corresponds to a partition of a liquid crystal display panel. , in the driving circuit corresponding to at least one backlight unit, the data signal input module is used to input the first data signal to the first point in the detection stage; the driving module is connected to the data signal input module through the first point, and is connected to the backlight through the second point The unit is connected to drive the backlight unit to emit light; the detection module is connected to the drive module through the second point, and is used to detect the threshold voltage of the drive module in the detection stage; the storage module is connected to the drive module through the first point for storage. The threshold voltage of the driving module; the data signal input module is also used for inputting the compensated second data signal to the first point according to the threshold voltage detected by the detection module in the display stage. The present application improves the uniformity of light emission of the backlight module.

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] In the existing AM-LED backlight module, LED devices usually use thin film transistor driving circuits to drive light emission. However, due to reasons such as manufacturing process technology or aging, the threshold voltage of the driving transistors in the driving circuit is prone to drift, which makes different LEDs in the plane. In the driving circuit of the device, the threshold voltage of the driving transistor is different. Even if the voltage applied to the driving transistor is the same, the actual driving current flowing through the LED device will be different, resulting in the difference in the luminous brightness of the LED device, and the brightness of the entire backlight module. evenly. [0003] Therefore, the existing LED backlight module has the technical problem of uneven br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3426Y02B20/30G09G3/32G09G2310/08G09G2300/0866G09G3/36G09G2300/0819G09G2320/0233
Inventor 蓝庆生王拂依
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD