Capacitive touch panel and touch detection method for same
A capacitive touch and panel technology, which is applied in the fields of electrical digital data processing, instruments, and the input/output process of data processing, and can solve problems such as cost increase
Inactive Publication Date: 2014-02-26
CPT TECH GRP +1
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Problems solved by technology
The touch resolution of the touch panel needs to increase the number of detection units in order to achieve precise touch control. However, the increase in the number of detection units will also increase the number of scanning lines connected to the processing chip, which will make the manufacturing the cost of
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[0030] Please refer to figure 1 . figure 1 It is a top view of a capacitive touch panel 1 in an embodiment of the present invention. The capacitive touch panel 1 includes: a touch detection array 10 , scanning lines and a driving control module 14 .
[0031] The touch detection array 10 is substantially located in the display area. The display area is the area in the capacitive touch panel 1 that has pixel electrodes (not shown) to generate a display image for the user to watch. In different embodiments, the display area can transmit data to the pixel electrodes of the display area by a driving circuit (not shown) or other methods for display.
[0032] The touch detection array 10 includes: a first direction detection unit 11 and a second direction detection unit 13 . Wherein, the first direction detecting unit 11 is represented by a diamond-shaped block or a black diamond-shaped block including oblique lines, and the second direction-detecting unit 13 is represented by a ...
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The invention relates to a capacitive touch panel, which comprises a touch detection array, shared scanning lines, independent scanning lines and a driving control module. The touch detection array comprises a plurality of rows of first direction detection units and a plurality of lines of second direction detection units, wherein the first direction detection units are divided into a first group and a second group which are staggered at intervals. The shared scanning lines are respectively connected with one row of the first direction detection units of the first group and one line of the second direction detection units. The independent scanning lines are respectively connected with one row of the first direction detection units disconnected with the shared scanning line and one line of the second direction detection units. The driving control module is connected with the shared scanning lines and the independent scanning lines, so that the shared scanning lines and the independent scanning lines are used for scanning the touch detection array, and then touch input is detected. The invention further discloses a touch detection method.
Description
technical field [0001] The present invention relates to a touch panel, and in particular to a capacitive touch panel and a touch detection method thereof. Background technique [0002] The touch panel has become one of the most popular technologies under the popular trend of touch electronic devices such as mobile phones and tablet computers in recent years. Among them, the capacitive touch panel can detect the voltage drop caused by the capacitance change on the panel due to the touch pressure by the detection unit formed in the display panel, and then the processing chip can calculate the position of the touch. However, these detection units need many scanning lines to transmit the detection results to the processing chip for calculation. The touch resolution of the touch panel needs to increase the number of detection units in order to achieve precise touch control. However, the increase in the number of detection units will also increase the number of scanning lines con...
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IPC IPC(8): G06F3/044
Inventor 许朝咏黄仕泓陈鸿祥
Owner CPT TECH GRP