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US 11,538,391 B2Granted
Driving method for display panel, driving device thereof and display device
AssigneeHkc Corporation Limited
InventorDongsheng Guo
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Abstract
The present application discloses a driving method for a display panel, a driving device thereof and a display device. The driving method includes: performing square wave conversion on drive data received by each channel to obtain data line signals, where square wave signals generated by the conversion of different gray scales in the corresponding drive data have an identical high level, and the time of low level output is different.
Claims4
A driving method for a display panel, comprising steps of:
- receiving drive data corresponding to each channel;
- performing square wave conversion on the drive data to obtain data line signals;
- and
- outputting the data line signal corresponding to each channel, and transmitting the data line signal to a corresponding data line on the display panel;
- and performing data driving on the display panel;
- in the step of performing square wave conversion on the drive data to obtain data line signals, square wave signals generated by the conversion of different gray scales in the corresponding drive data have an identical high level, and the time of low level output is different;
- wherein in the step of performing square wave conversion on the drive data to obtain data line signals, a high level and a low level on the same data line corresponding to two adjacent scan lines have the same starting order;
- wherein in the step of performing square wave conversion on the drive data to obtain data line signals, corresponding square wave width time and reset time are queried and output from a preset square wave lookup table according to a target gray scale voltage value;
- the reset time determines the start time of the low level output, and the square wave width time determines the duration of the low level;
- and after the time of low level output is calculated, the square wave conversion is performed on the drive data to obtain the data line signals.
7 more elements
A driving device for a display panel, comprising:
- a receiver that receives drive data corresponding to each channel;
- a square wave conversion chip that performs square wave conversion on the drive data to obtain data line signals;
- and
- an outputter that outputs the data line signal corresponding to each channel, transmits the data line signal to a corresponding data line on the display panel, and performs data driving on the display panel;
- wherein in the square wave conversion chip, square wave signals generated by the conversion of different gray scales in the corresponding drive data have an identical high level, and the time of low level output is different;
- wherein in the step of performing square wave conversion on the drive data to obtain data line signals, a high level and a low level on the same data line corresponding to two adjacent scan lines have the same starting order;
- wherein the square wave conversion chip comprises an inverter circuit, and the inverter circuit comprises:
- a square wave generator, a polarity reversal chip, a logic level power supply, and a result outputter;
- the inverter circuit further comprises a switch, the square wave generator and the polarity reversal chip control the switch, and the switch controls the output of square wave signals;
- and input and output results of the square wave signals generate a truth table.
7 more elements
Dependencies are inferred from the claim text.