Touch control display apparatus and method for recognizing multiple press contacts
A touch display device and contact technology, applied in the input/output process of data processing, instruments, electrical and digital data processing, etc., can solve problems such as monotonous operation mode
Active Publication Date: 2011-10-19
ASUSTEK COMPUTER INC
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Problems solved by technology
[0003] However, in the prior art, the touch display device with a resistive touch panel does not have a control module capable of identifying two or more touch points at the same time, which makes the user only control the A pressure contact, thus making the operation more monotonous
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[0035] In order to disclose the technical content of the present invention more clearly, preferred specific embodiments are described as follows.
[0036] Please refer to Figure 1A and Figure 1B A structural diagram of a touch display device according to an embodiment of the present invention.
[0037] The touch display device 10 according to an embodiment of the present invention has the function of identifying multiple pressure points. Such as Figure 1A As shown, the touch display device 10 includes a control module 21 , a switching circuit 23 and a resistive touch panel 30 . The control module 21 includes a measuring unit 22 for measuring the voltage value of each electrode of the resistive touch panel 30 . The control module 21 and the switching circuit 23 are electrically connected to each other. The switching circuit 23 has the function of converting the circuit connection, and the control module 21 can change the connection between each electrode in the resistiv...
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The invention provides a touch-control display device and a method for identifying a plurality of press contacts. The touch-control display device comprises a control module and a resistance-type touch-control panel, wherein the resistance-type touch-control panel comprises a first conducting layer and a second conducting layer; and the first conducting layer and the second conducting layer have a first electrode, a second electrode, a third electrode and a fourth electrode. The method comprises the following steps: when the first conducting layer and the second conducting layer have a plurality of press contacts, two electrodes to which voltage is applied are repeatedly selected in an unrepeatable combination mode; two voltage values are acquired from the rest electrodes, so as to acquire a plurality of voltage values; a plurality of equivalent resistance values are figured out according to the voltage values; and the positions of a plurality of the press contacts are figured out. The method ensures that the touch-control display device can simultaneously identify a plurality of press contacts and perform subsequent relevant operation, so as to provide more manifold control modesfor users to operate.
Description
technical field [0001] The present invention relates to a touch display device, in particular to a touch display device with the function of identifying multiple pressing contacts. Background technique [0002] With the advancement of technology, many electronic devices with touch display devices have appeared, such as PDAs, mobile phones or tablet computers. Since the user can intuitively use the touch display device, it is relatively easy for ordinary users to get started, so the touch display device has gradually been widely used in electronic devices in various fields. Among them, the touch display device with a resistive touch panel is relatively cheap, and the way to control the resistive touch panel is relatively simple, so the resistive touch panel is widely used in the market. [0003] However, in the prior art, the touch display device with a resistive touch panel does not have a control module capable of identifying two or more touch points at the same time, whic...
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IPC IPC(8): G06F3/045
Inventor 刘冠麟谢明志林居辉
Owner ASUSTEK COMPUTER INC