A touch driving circuit, a touch driving method, and a touch screen
A touch driving circuit and touch driving signal technology are applied in the fields of electrical digital data processing, instruments, and data processing input/output processes, etc., which can solve problems such as low touch driving efficiency and achieve the effect of improving efficiency.
Active Publication Date: 2018-02-13
XIAMEN TIANMA MICRO ELECTRONICS +1
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Problems solved by technology
[0004] The existing touch driving circuit can only drive each touch electrode one by one for touch detection, and the efficiency of touch driving is low
Method used
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[0025] 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.
[0026] refer to figure 1 , figure 1 It is a structural diagram of a touch driving circuit in the prior art, and the driving circuit includes: a scanning circuit 11 and an output circuit 12 . The scanning circuit 11 includes a plurality of cascaded shift registers 13 . The output circuit 12 includes a plurality of selection output circuits 14 , and the selection output circuits 14 are connected to the shift registers 13 in a one-to-one correspondence.
[002...
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The invention discloses a touch screen, a touch drive circuit and a touch drive method. The touch drive circuit includes: a plurality of cascaded shift registers; a selection output circuit connected to the shift registers in one-to-one correspondence ; Wherein, at least one of the selection output circuits is connected to multiple touch electrodes; one of the touch electrodes is connected to one of the selection output circuits; when the shift register is in a scanning state, and the corresponding selection output circuit is connected to multiple When the electrodes are touched, the selection output circuit simultaneously provides touch driving signals to correspondingly connected multiple touch electrodes, which are different in frequency from the touch drive signals of multiple touch electrodes connected to the same selection output circuit. The touch driving circuit can simultaneously drive a plurality of touch electrodes to perform touch detection, thereby improving the efficiency of touch detection.
Description
technical field [0001] The present invention relates to the field of touch technology, and more specifically, to a touch driving circuit, a touch driving method and a touch screen. Background technique [0002] With the continuous development of science and technology, various touch electronic devices are more and more applied to people's work and daily life, which brings great convenience to people's work and daily life. [0003] A touch screen is a main component of a touch electronic device, and the touch electronic device realizes touch operation and image display through the touch screen. The touch driving circuit is an important structure for the touch screen to realize touch and display driving, and is used for touch driving and display driving. [0004] The existing touch driving circuit can only drive each touch electrode one by one to perform touch detection, and the touch driving efficiency is low. Contents of the invention [0005] In order to solve the above...
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IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/04184G06F3/04166
Inventor 杨毅志
Owner XIAMEN TIANMA MICRO ELECTRONICS