Touch-controlled integrated circuit and driving method
A technology of touch chip and driving method, which is applied in the directions of instruments, computing, electrical digital data processing, etc., can solve problems such as touch position error, and achieve the effect of improving performance
Inactive Publication Date: 2017-06-30
KUSN INFOVISION OPTOELECTRONICS
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Problems solved by technology
[0007] Since only one scan code data is stored in the storage device, when the environment of the touch device is different, such as high temperature, low temperature, anti-peeping film and humidity, etc., the touch IC 10 still uses the scan code data, There will be errors in the touch position obtained by the touch device, such as false positive points, flying lines, etc.
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[0025] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.
[0026] The invention can be embodied in various forms, some examples of which are described below. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "electrical connection" here includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is electrically connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices or connection means.
[0027] figure 2 A schematic structural diag...
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The invention discloses a touch-controlled integrated circuit, which comprises a touch-controlled drive used to provide driving signal to a touch screen, a storing device which comprises a plurality of storing zones and is used to separately store different scanning coded data, a sensor module used to attain environmental parameter signal of the touch screen, a signal processing module which is connected with the sensor module and used to create selective signal according to the environmental parameter signal, a controlling module connected with the touch-controlled drive and the signal processing module is used to attain the scanning coded data by a switch array from different storing zones according to the selective signal, and provide sequence signal to the touch-controlled drive according to the scanning coded data. The touch-controlled integrated circuit and driving method thereof also provides a driving method of the touch-controlled integrated circuit. By attaining the environmental parameter signal and scanning coded data with different scanning modes from the storing device according to the environmental parameter signal, the corresponding scanning coded data can be switched automatically as the environment changes, and the performance of the touch-controlled integrated circuit is improved.
Description
technical field [0001] The invention belongs to the field of touch screens, and more specifically relates to a touch chip and a driving method thereof. Background technique [0002] With the continuous development of touch screens (Touch Panel, TP), capacitive touch screens are gradually widely used in the field of terminal equipment. [0003] In existing capacitive touch devices, touch sensing signals are obtained based on mutual capacitance or self capacitance. In a mutual capacitance touch panel, the touch position is obtained by detecting the capacitance change between two electrodes. In the self-capacitive touch panel, the touch position is obtained by detecting the capacitance change between the electrode and the ground. [0004] figure 1 A schematic structural diagram of a touch control device according to the prior art is shown. The touch device is described by taking a mutual capacitive touch device as an example. The mutual capacitance touch device includes a ...
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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0416G06F3/044
Inventor 邱峰青王鹏飞
Owner KUSN INFOVISION OPTOELECTRONICS