Driving method and device of display panel, and display device
AssigneesChongqing Hkc Optoelectronics Technology Co., Ltd., Hkc Corporation Limited
InventorChihtsung Kang
Life of this patent
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Abstract
Disclosed a driving method and a device of display panel, as well as a display panel, taking a time duration of scanning at least three adjacent columns of pixel unit as a driving period, driving a common electrode of each sub-pixel of the pixel unit with a preset voltage in a current driving period, and if the preset voltage is a positive or negative polarity driving voltage, driving the high voltage sub-pixels of the pixel and the low voltage sub-pixels of the pixel unit with a preset driving mode.
Claims20
A driving method of display panel, wherein the display panel comprises a display array, the display array comprises pixel units arranged in an array, the pixel unit is alternately arranged by a first pixel unit and a second pixel unit;
- wherein the driving method comprises:
- taking a time duration of scanning at least three adjacent columns of pixel unit as a driving period, driving a common electrode of each sub-pixel of the pixel unit with a preset voltage in a current driving period;
- if the preset voltage is a negative polarity driving voltage, driving the high voltage sub-pixels of the pixel unit with a positive polarity and driving the low voltage sub-pixels of the pixel unit with a negative polarity, wherein the preset voltage is less than a reference voltage;
- inverting the preset voltage periodically when a received data driving signal input by a data driving circuit is inverted;
- and
- if the inverted preset voltage is a positive polarity driving voltage, driving the high voltage sub-pixels of pixel unit with a negative polarity, and driving the low voltage sub-pixels of the pixel unit with a positive polarity, wherein the inverted preset voltage is larger than the reference voltage.
A driving device of display panel, wherein the driving device comprises a processor and a non-volatile memory, the non-volatile memory stores executable instructions, the processor executes the executable instructions, and the executable instructions comprise:
- a common electrode driving module, being configured to take a time duration of scanning at least three adjacent columns of pixel unit as a driving period, driving a common electrode of each sub-pixel of the pixel unit with a preset voltage in a current driving period;
- the common electrode driving module is further configured to drive the high voltage sub-pixels of the pixel unit with a positive polarity and driving the low voltage sub-pixels of the pixel unit with a negative polarity if the preset voltage is a negative polarity driving voltage, wherein the preset voltage is less than a reference voltage;
- an inverting module, being configured to invert the preset voltage periodically when a received data driving signal input by a data driving circuit is inverted;
- and
- the common electrode driving module is further configured to drive the high voltage sub-pixels of pixel unit with a negative polarity and drive the low voltage sub-pixels of the pixel unit with a positive polarity if the inverted preset voltage is a positive polarity driving voltage, wherein the inverted preset voltage is larger than the reference voltage.
A display device, wherein the display device comprises a driving device of display panel, the driving device comprises a processor and a non-volatile memory, the non-volatile memory stores executable instructions, the processor executes the executable instructions, and the executable instructions comprise:
- a common electrode driving module, being configured to take a time duration of scanning at least three adjacent columns of pixel unit as a driving period, driving a common electrode of each sub-pixel of the pixel unit with a preset voltage in a current driving period,
- the common electrode driving module is further configured to drive the high voltage sub-pixels of the pixel unit with a positive polarity and driving the low voltage sub-pixels of the pixel unit with a negative polarity if the preset voltage is a negative polarity driving voltage, wherein the preset voltage is less than a reference voltage;
- an inverting module, being configured to invert the preset voltage periodically when a received data driving signal input by a data driving circuit is inverted;
- and
- the common electrode driving module is further configured to drive the high voltage sub-pixels of pixel unit with a negative polarity and drive the low voltage sub-pixels of the pixel unit with a positive polarity if the inverted preset voltage is a positive polarity driving voltage, wherein the inverted preset voltage is larger than the reference voltage.
Dependencies are inferred from the claim text.