-
公开(公告)号：US20230317024A1
公开(公告)日：2023-10-05
申请号：US17772645
申请日：2022-04-13
Inventor： Xiaoying GUO , Junyao FAN
IPC: G09G3/34
CPC classification number: G09G3/342 , G09G2330/021
Abstract: The present application discloses a backlight module and a display device. The backlight module includes a plurality of light-emitting units, a plurality of drive chips, a plurality of cascaded voltage comparators, and a voltage adjustment module. The light-emitting unit connected to a control terminal of a same drive chip is connected with a same initial drive voltage. The plurality of cascaded voltage comparators output an adjustment voltage in a N-th stage based on a preset voltage and a plurality of to-be-detected voltages. The voltage adjustment module is configured to adjust the initial drive voltage based on the adjustment voltage in the N-th stage.
-
公开(公告)号：US20240005881A1
公开(公告)日：2024-01-04
申请号：US17897291
申请日：2022-08-29
Inventor： Xiaoying GUO
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2330/028 , G09G2300/0828 , G09G2320/0626
Abstract: Aa light-emitting device driver chip, a backlight module, and a display panel are provided. The light-emitting device driver chip includes at least two current control circuits and a parallel control circuit. Each of the at least two current control circuits includes a current control module. A control output node of the current control module is electrically connected to a corresponding one of the output ports. The parallel control circuit is electrically connected between the at least two current control circuits and is configured to control, according to a parallel control signal received from a first input port, the current control modules of the at least two current control circuits to be electrically connected to enable the current control modules of the at least two current control circuits to output the same current to corresponding ones of the output ports through the control output nodes.
-
Search Results
2
records
(took 0.013 seconds)
