TOUCH DISPLAY PANEL, TOUCH DISPLAY DEVICE AND TOUCH DETECTION METHOD
First Claim
1. A touch display panel, comprising:
- a plurality of receiving electrodes and a plurality of transmitting electrodes disposed in the display panel, the receiving electrodes and the transmitting electrodes being disposed in a cross manner and insulated from each other;
the touch display panel further comprising;
a plurality of transparent electrodes and a touch detecting circuit,wherein the transparent electrodes are disposed on a substrate at a touching side of the display panel, and the transparent electrodes are one-to-one connected and correspond to the transmitting electrodes in the display panel;
the touch detecting circuit is connected to individual transparent electrodes and comprises a voltage switch unit, a storage unit and a processing unit;
wherein the voltage switch unit is configured for connecting the transparent electrodes to a common level during a display stage and setting the transparent electrodes to a high resistance state during a touch detection stage;
the storage unit is configured for storing initial display data during the display stage when no touch happens and initial touch data during the touch detection stage when no touch happens, of each touch node within each grayscale range;
the processing unit is configured for measuring actual display data of each touch node when touch happens during the display stage and measuring actual touch data of each touch node when touch happens during the following touch detection stage, and for finding, for each of the touch nodes, corresponding initial touch data in the corresponding grayscale range according to initial display data closest to the actual display data in the storage unit, and removing influence caused by the corresponding initial touch data from the actual touch data to obtain an actual output during the touch detection stage.
1 Assignment
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Accused Products
Abstract
Disclosed is a touch display panel, a touch display device and a touch detection method. The touch display panel includes receiving electrodes and transmitting electrodes, and further includes a plurality of transparent electrodes and a touch detecting circuit. The transparent electrodes are disposed on a substrate at a touching side of the display panel and one-to-one connected and correspond to the transmitting electrodes. The touch detecting circuit is connected to individual transparent electrodes, and includes a voltage switch unit, a storage unit and a processing unit. The processing unit is configured for measuring actual display data and actual touch data of each touch node, finding corresponding initial touch data, and removing influence caused by the corresponding initial touch data from the actual touch data to obtain an actual output.
3 Citations
15 Claims
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1. A touch display panel, comprising:
- a plurality of receiving electrodes and a plurality of transmitting electrodes disposed in the display panel, the receiving electrodes and the transmitting electrodes being disposed in a cross manner and insulated from each other;
the touch display panel further comprising;
a plurality of transparent electrodes and a touch detecting circuit,wherein the transparent electrodes are disposed on a substrate at a touching side of the display panel, and the transparent electrodes are one-to-one connected and correspond to the transmitting electrodes in the display panel; the touch detecting circuit is connected to individual transparent electrodes and comprises a voltage switch unit, a storage unit and a processing unit; wherein the voltage switch unit is configured for connecting the transparent electrodes to a common level during a display stage and setting the transparent electrodes to a high resistance state during a touch detection stage; the storage unit is configured for storing initial display data during the display stage when no touch happens and initial touch data during the touch detection stage when no touch happens, of each touch node within each grayscale range; the processing unit is configured for measuring actual display data of each touch node when touch happens during the display stage and measuring actual touch data of each touch node when touch happens during the following touch detection stage, and for finding, for each of the touch nodes, corresponding initial touch data in the corresponding grayscale range according to initial display data closest to the actual display data in the storage unit, and removing influence caused by the corresponding initial touch data from the actual touch data to obtain an actual output during the touch detection stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a plurality of receiving electrodes and a plurality of transmitting electrodes disposed in the display panel, the receiving electrodes and the transmitting electrodes being disposed in a cross manner and insulated from each other;
Specification