Backlight module and display device
AssigneeSuzhou China Star Optoelectronics Technology Co., Ltd.
InventorsJunhong LU, Teng LIU, Jun YAN
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Abstract
The present application provides a backlight module and a display device. The backlight module includes multiple light-emitting units, at least one driving chip, and an adjustment module. In the driving chip, control units are used to control the respective corresponding light-emitting unit to emit light based on control signals. Each control unit has a feedback node. A signal acquisition unit is connected to the feedback nodes to collect feedback voltages of the feedback nodes. An adjustment module is connected to the at least one driving chip and is used to adjust light-emission brightness of the light-emitting units according to the feedback voltages.
Claims20
A backlight module, comprising:
- a plurality of light-emitting units, wherein each of the light-emitting units comprises a positive terminal and a negative terminal;
- one or more driving chips, wherein each of the driving chips comprises a plurality of control terminals, a signal acquisition unit, and a plurality of control units connected to the control terminals, wherein each of the control terminals is connected to the negative terminal of the corresponding light-emitting unit, each of the control units is connected to a control signal and is also connected to a ground terminal, each of the control units controls the corresponding light-emitting unit to emit light based on the control signal, each of the control units comprises a feedback node, and the signal acquisition unit is connected to each of the feedback nodes to acquire a feedback voltage of this feedback node;
- and
- an adjustment module connected to at least one of the driving chips, wherein the adjustment module adjusts brightness of each of the light-emitting units according to the corresponding feedback voltage.
Dependencies are inferred from the claim text.