Driving method of touch display panel and touch display device
A technology of a touch display panel and a driving method, which can be applied to static indicators, input/output processes of data processing, optics, etc., and can solve problems such as insufficient sub-pixel charging time.
Active Publication Date: 2019-07-05
BOE TECH GRP CO LTD +1
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[0003] Embodiments of the present invention provide a method for driving a touch display panel and a touch display device, which are used to solve the problem of insufficient charging time for a row of sub-pixels in a touch display screen when the touch signal and display signal are output in time division
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] The embodiment of the present application provides a touch display panel 01, such as figure 1 As shown, the above-mentioned touch display panel 01 includes an array substrate 100 and a box substrate 101 oppositely arranged, and a liquid crystal layer 102 located between the array substrate 100 and the box substrate 101 .
[0033] In addition, the above-mentioned touch display panel 01 also includes: figure 2 A common electrode 103 and a plurality of p...
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The embodiment of the invention provides a driving method of a touch display panel and a touch display device, which relate to the technical field of display, and are used for solving the problem thatwhen a touch signal and a display signal are outputted in a time-sharing manner, the charging time of a row of sub-pixels in a touch display screen is insufficient. The driving method of the touch display panel comprises the following steps of providing a single-frequency sinusoidal signal y for each electrode block in a common electrode in a display period, wherein the electrode block is used asa touch electrode to form self-capacitance with the grounding end, the display period comprises N display stages, each display stage comprises M image frames, the refresh rate of the display period is greater than or equal to a refresh rate threshold A, and the refresh rate threshold value is the maximum refresh rate which can be identified by human eyes; providing a data signal to the pluralityof pixel electrodes; using an electric field formed by the pixel electrodes and the common electrodes to drive the liquid crystal molecules in the liquid crystal layer to overturn, and using the touchdisplay panel to display. Within a display period, the brightness mean value of any sub-pixel in the touch display panel is the same as the target brightness value of the sub-pixel.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a driving method of a touch display panel and a touch display device. Background technique [0002] The touch screen panel (Touch Screen Panel) is gradually permeating people's life. At present, during the touch display process of the touch display screen, the touch signal and the display signal are time-divisionally output. However, for a display panel with a higher resolution, the number of sub-pixels in one row is larger. In this way, when the touch signal and the display signal are output in time-division, the time for a row of sub-pixels to receive the display signal is relatively short, causing some sub-pixels to be insufficiently charged. Contents of the invention [0003] Embodiments of the present invention provide a method for driving a touch display panel and a touch display device, which are used to solve the problem of insufficient charging time for a ro...
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IPC IPC(8): G06F3/041G06F3/044G09G3/36
CPCG06F3/0416G06F3/044G09G3/3607G02F1/13338G09G3/3655G09G3/3674G09G2310/08G09G2360/16G09G2354/00G06F3/0446G06F3/04166G06F3/0412G09G2310/0202G09G2320/0233
Inventor 刘金星陈明董学高博孙文佳刘小舟熊彦楠刘佳灏张少如陈阳
Owner BOE TECH GRP CO LTD