Touch display panel, driving method thereof and touch display device
A touch display panel and touch electrode technology, which is applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of large parasitic capacitance and the like
Active Publication Date: 2021-04-23
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0003] In view of this, the present invention provides a touch display panel, a driving method thereof, and a touch display device to solve the problem of large parasitic capacitance between touch electrodes and cathodes
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[0036] The above is the core idea of the present invention. In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention Description, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.
[0037] An embodiment of the present invention provides a touch display panel, such as figure 1 as shown, figure 1 A schematic cross-sectional structure diagram of a touch display panel provided by an embodiment of the present inventi...
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The invention provides a touch display panel, a driving method thereof and a touch display device. The touch display panel comprises a substrate, and a light-emitting array layer, a packaging layer, a first electrode layer and a color resistance layer which are sequentially positioned on the surface of the substrate, the first electrode layer comprises a plurality of first touch electrodes; wherein the packaging layer at least comprises a first sub-packaging layer and a second sub-packaging layer, the first sub-packaging layer and the second sub-packaging layer are sequentially arranged in the direction away from the substrate, and an auxiliary electrode is arranged between the first sub-packaging layer and the second sub-packaging layer; in the direction perpendicular to the substrate, the projection of the first touch electrode and the projection of the auxiliary electrode are at least partially overlapped; in the touch charging stage, the first touch electrodes have first driving signals, the auxiliary electrodes have second driving signals, and the second driving signals and the first driving signals are synchronous signals, so that the parasitic capacitance between the first touch electrodes and the auxiliary electrodes is small, and the influence of the parasitic capacitance on the first touch electrodes can be effectively reduced; and thus, the sensitivity of touch detection can be improved.
Description
technical field [0001] The present invention relates to the field of display technology, and more specifically, to a touch display panel, a driving method thereof, and a touch display device. Background technique [0002] With the continuous development of display technology, OLED (Organic Light Emitting Diode, organic light-emitting) display panel, because of its low energy consumption, high resolution, high brightness, fast response, no need for backlight and low cost, has been favored. It is more and more widely used in people's work and life. However, in an OLED display panel integrated with touch electrodes, the parasitic capacitance between the touch electrodes and the cathode is large, resulting in poor touch detection accuracy and sensitivity of the touch electrodes. Contents of the invention [0003] In view of this, the present invention provides a touch display panel, a driving method thereof, and a touch display device, so as to solve the problem of large para...
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IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/0416G06F3/0445G06F3/04184G06F2203/04107G06F3/0446G06F2203/04111
Inventor 卢峰
Owner XIAMEN TIANMA MICRO ELECTRONICS