Touch control display panel, driving method thereof and touch control display device
A technology of a touch display panel and a driving method, which is applied in the direction of instruments, electrical digital data processing, and input/output processes of data processing, etc., and can solve problems affecting touch detection accuracy and sensitivity, signal amount reduction, etc., and achieve improved touch Effect of Detection Accuracy and Sensitivity
Active Publication Date: 2017-05-31
XIAMEN TIANMA MICRO ELECTRONICS +1
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Problems solved by technology
[0004] However, when the above-mentioned touch display device encounters a harsh environment (for example, wet), the amount of signal sensed by the touch sensing electrodes will decrease sharply, seriously affecting the accuracy and sensitivity of touch detection.
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[0020] 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.
[0021] 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.
[0022] see figure 1 Shown is a schematic structural diagram of an embodiment of the touch display panel of the present application.
[0023] The touch display panel of this embodiment includes the following structure:
[0024] The first touch electrode layer includes a plurality of first touch e...
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The invention discloses a touch control display panel, a driving method thereof and a touch control display device. The touch control display panel comprises a first touch control electrode layer, a second touch control electrode layer, a first integrated circuit and a plurality of switch units, wherein the first touch control electrode layer comprises multiple first touch control electrodes extending in the first direction; the second touch control electrode layer comprises M rows and N columns of second touch control electrodes; a forward projection of each first touch control electrode on the second touch control electrode layer and the corresponding second touch control electrodes of one row of second touch control electrodes of the second touch control electrode layer are at least partly overlapped; the first integrated circuit is used for applying touch control drive signals on the second touch control electrodes in the touch control scanning period; each switch unit comprises a control end used for electrically connecting or disconnecting the second touch control electrodes in the same column, in the second touch control electrode layer under the control of input signals. According to the scheme, the touch control display panel is switched between a mutual capacitance type touch detection framework and a self capacitance touch detection framework, and accordingly touch detection precision and sensitivity in severe environments are improved.
Description
technical field [0001] The present disclosure generally relates to the field of display technology, and in particular, to a touch display panel, a driving method thereof, and a touch display device. Background technique [0002] The touch display device can detect the coordinate position of the finger in the display screen plane of the touch display device through the touch electrodes, and perform corresponding display according to the coordinate position. [0003] In current touch display devices, the touch function is usually realized by touch driving electrodes and touch sensing electrodes. Wherein, the touch driving electrodes are parallel to each other, the touch sensing electrodes are parallel to each other, and the directions of the touch driving electrodes and the touch sensing electrodes intersect. A touch scanning signal is applied to the touch driving electrodes. When a person's finger touches the screen of the touch display device, the finger and some touch elec...
Claims
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IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 余仁惠郗文远黄建才许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS