Touch control drive circuit and method and touch control 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: 2015-09-09
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
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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 control screen and a touch control drive circuit and method. The touch control drive circuit comprises a plurality of cascaded shifting registers and selection output circuits connected with the shifting registers in a one-to-one correspondence manner, wherein at least one of the selection output circuit is connected with a plurality of touch control electrodes; one touch control electrode is connected with one selection output circuit; when the shifting registers are in a scanning state and the corresponding selection output circuit is connected with multiple touch control electrodes, the selection output circuit provides touch control drive signals to the correspondingly-connected touch control electrodes, and the frequencies of the touch control signals of the touch control electrodes connected with the same selection output circuit are different. The touch control drive circuit can drive the plurality of touch control electrodes to perform touch control detection, and touch control detection efficiency is increased.
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