Touch display panel, driving method and touch display device
A technology of a touch display panel and a driving method, which are applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems that transistors occupy a large space, the touch display panel is difficult to realize the design of a narrow frame, and the touch display panel is complicated to manufacture. And other issues
Active Publication Date: 2019-09-24
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0004] Usually, the driving circuit used to provide touch scanning signals to each touch electrode in the touch display panel can be composed of a large number of transistors, which makes the production of the touch display panel complicated, and the transistors included in the above driving circuit usually need to occupy The large space makes it difficult to achieve a narrow bezel design for the touch display panel
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[0018] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0020] see figure 1 , which shows a schematic structural diagram of an embodiment of the touch display panel of the present application. As shown in the figure, the touch display panel 100 of this embodiment includes a plurality of touch electrodes 101 and a plurality of driving units 106 corresp...
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The invention discloses a touch display panel, a driving method and a touch display device. The touch display panel comprises a driving circuit and multiple touch electrodes. The driving circuit comprises multiple driving units corresponding to the touch electrodes one to one. A grid electrode, a first electrode and a second electrode of a first transistor in each driving unit are connected with a first pulse signal line, a first voltage signal line and a first electrode of a third transistor respectively, a grid electrode, a first electrode and a second electrode of a second transistor are connected with a second pulse signal line, a second voltage signal line and the first electrode of the third transistor respectively, a grid electrode and a second electrode of the third transistor are connected with a first control side and the corresponding touch electrode respectively, and a grid electrode, a first electrode and a second electrode of a fourth transistor are connected with a second control side, a third voltage signal line and the corresponding touch electrode respectively. According to the driving circuit, the number of the transistors can be reduced, and therefore the space occupied by the driving circuit in the touch display panel is reduced.
Description
technical field [0001] The present disclosure generally relates to the field of display technology, and in particular, relates to a touch display panel, a driving method, and a touch display device. Background technique [0002] With the rapid development of display technology, touch display technology has gradually pervaded people's lives. Among the existing touch display panels, compared with resistive touch display panels, capacitive touch display panels have the advantages of long life, high light transmittance, and support for multi-touch, and have become a hot spot in touch display technology. . [0003] The detection principle of the existing capacitive touch display panel is as follows: by forming touch electrodes and sensing electrodes distributed horizontally and vertically in the touch display panel, and forming a capacitance matrix at the intersections, then the driving circuit of the touch display panel The stage provides touch scanning signals to each touch e...
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IPC IPC(8): G06F3/041
Inventor 邹宗骏苏凌志孙莹许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS