A touch panel, button channel multiplexing method and device
A touch panel and channel technology, which is applied to instruments, computing, electrical and digital data processing, etc., can solve problems such as increased cost and increased occupied volume of the touch screen.
Active Publication Date: 2020-11-06
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
[0004] However, increasing the button channels by adding touch chips will lead to an increase in the size and cost of the touch display screen. Therefore, how to provide a touch panel that can multiplex the button channels is based on the same The touch unit can reduce the demand for button channels, which has become a major technical problem to be solved urgently by those skilled in the art
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[0072] 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.
[0073] see figure 1 , is a schematic structural diagram of a touch panel provided in this embodiment, the touch panel includes a plurality of touch units 11 and a touch chip 20 , wherein the touch chip 20 includes a plurality of channels 13 .
[0074] Wherein, the touch unit 11 is a unit module for inductive touch operations corresponding to the touch buttons on the display screen. For example, there are usually three control buttons on a mobile phone, such as...
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Embodiments of the invention provide a touch panel and a key channel multiplexing method and apparatus. The touch panel comprises a plurality of touch units and a touch chip. In the same touch unit, channels connected with a first touch sub-unit and a second touch sub-unit are different. In any two touch units, when channels connected with a first control sub-unit are same, channels connected with a second control sub-unit are different, or, when the channels connected with the first control sub-unit are different, the channels connected with the second control sub-unit are same or different. According to the scheme, key channels are arbitrarily combined; one touch unit is controlled by two or more key channels, so that the touch chip can identify more touch units on the hardware basis of an original key channel quantity; and in other words, compared with the prior art, based on the same quantity of the touch units, the demand quantity of the key channels can be reduced through the scheme.
Description
technical field [0001] The present invention relates to the field of display technology, and more specifically, to a touch panel, key channel multiplexing method and device. Background technique [0002] Usually, in a touch display screen, each touch unit is connected to a key channel, and when the touch unit is touched, an electrical signal is transmitted to the touch chip through the key channel connected to the touch unit, so as to realize control of all The report of the touch unit. [0003] Currently, one touch chip has four key channels, and each key channel is connected to one touch unit, that is, each touch chip is connected to four touch units. However, a touch display screen has multiple touch units, This requires a plurality of touch chips to meet the design requirements of the touch display screen. [0004] However, increasing the button channels by adding touch chips will lead to an increase in the size and cost of the touch display screen. Therefore, how to p...
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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0416G06F3/044
Inventor 曾庆海
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD