Touch sensing layer and touch panel
a touch panel and touch technology, applied in the field of touch panel sensing layer and touch panel, can solve the problems of low touch refresh rate and ineffective improvement, and achieve the effect of efficient solving
Active Publication Date: 2022-05-12
TPK ADVANCED SOLUTIONS
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Benefits of technology
[0005]An aspect of the disclosure is to provide a touch sensing layer and a touch panel that can efficiently solve the aforementioned problems.
[0016]Accordingly, in the touch sensing layer of the present disclosure, the dummy electrode is arranged between the first-axis conductive unit and the second-axis conductive unit, and at least a part of the dummy electrode is located in the gap formed between the first-axis conductive unit and the second-axis conductive unit. In this way, the mutual capacitance (Cm) value between the first-axis conductive unit and the second-axis conductive unit can be effectively reduced, and the resistance-capacitance (RC) value can be reduced, thereby effectively improving the touch refresh rate of the touch panel.
Problems solved by technology
Taking the conventional architecture using Tx and Rx that are interleaving with the bridging design, two adjacent Tx and Rx are extremely close and have a large Cm value, so the touch refresh rate is low and cannot be effectively improved.
Method used
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[0026]Reference will now be made in detail to the present embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments, and thus may be embodied in many alternate forms and should not be construed as limited to only example embodiments set forth herein. Therefore, it should be understood that there is no intent to limit example embodiments to the particular forms disclosed, but on the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
[0027]Reference is made to FIG. 1. FIG. 1 is a cross-sectional view of a touch panel 100 according to an embodiment of the disclosure. As shown in FIG. 1, in the present e...
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Abstract
A touch sensing layer includes a first-axis conductive unit, a second-axis conductive unit, and at least one dummy electrode. The first-axis conductive unit substantially extends along a first axial direction. The second-axis conductive unit substantially extends along a second axial direction and includes two conductive electrodes and a conductive bridge. The two conductive electrodes are respectively located at opposite sides of the first-axis conductive unit. The conductive bridge crosses the first-axis conductive unit and is connected to the two conductive electrodes. The dummy electrode includes at least one part located in a gap formed between the first-axis conductive unit and one of the two conductive electrodes.
Description
BACKGROUNDTechnical Field[0001]The present disclosure relates to a touch sensing layer and a touch panel.Description of Related Art[0002]With the trends of ever-increasing size and being indispensable in gaming applications, the most critical change in touch display devices is the continuous improvement of the display refresh rate of the display module. For example, the display refresh rate of the display module of a mobile phone will be increased from 120 Hz to 180 Hz, or even to 240 Hz. Correspondingly, the touch refresh rate of the touch module is also required to increase simultaneously.[0003]As far as the principle of touch refresh rate is concerned, the driving speed of a touch module is mainly based on the mutual capacitance (Cm) value between the driving electrode (Tx) and the receiving electrode (Rx). Specifically, the speed of driving each electrode scan is determined by the charging and discharging speed, which depends on the resistance-capacitance (RC) value for the touc...
Claims
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IPC IPC(8): G06F3/044
CPCG06F3/0446G06F2203/04111G06F3/0443G06F3/0448
Inventor YE, CAIJINWU, CHUN YANWEI, TSAI-KUEICHANG, CHEN-HSINLEE, LIEN-HSINCHENG, TAI-SHIH
Owner TPK ADVANCED SOLUTIONS