DISPLAY DEVICE INCLUDING TOUCH SENSOR
First Claim
1. A display device, comprising:
- a first surface;
a sensing capacitor having a sensing input electrode and a sensing output electrode, wherein the sensing capacitor stores a first amount of charges and the sensing capacitor stored a second amount of charges when an external object contacts on the first surface;
a sensing input signal line electrically connected with the sensing input electrode and receiving a sensing input signal to charge the sensing capacitor to the first amount of charges;
a sensing output signal line electrically connected with the sensing output electrode; and
a sensing signal processor connected with the sensing output signal line, wherein the sensing signal processor determines whether an external object contacts on the first surface based on a voltage difference between the first amount of charges and the second amount of charges stored in the sensing capacitor.
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Abstract
A display device include a first surface, a sensing capacitor having a sensing input electrode and a sensing output electrode, wherein the sensing capacitor stores a first amount of charges and the sensing capacitor stored a second amount of charges when an external object contacts on the first surface, a sensing input signal line electrically connected with the sensing input electrode and receiving a sensing input signal to charge the sensing capacitor to the first amount of charges, a sensing output signal line electrically connected with the sensing output electrode, and a sensing signal processor connected with the sensing output signal line, wherein the sensing signal processor determines whether an external objects contact on the first surface based on a voltage difference between the first amount of charges and the second amount of charges stored in the sensing capacitor.
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Citations
20 Claims
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1. A display device, comprising:
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a first surface; a sensing capacitor having a sensing input electrode and a sensing output electrode, wherein the sensing capacitor stores a first amount of charges and the sensing capacitor stored a second amount of charges when an external object contacts on the first surface; a sensing input signal line electrically connected with the sensing input electrode and receiving a sensing input signal to charge the sensing capacitor to the first amount of charges; a sensing output signal line electrically connected with the sensing output electrode; and a sensing signal processor connected with the sensing output signal line, wherein the sensing signal processor determines whether an external object contacts on the first surface based on a voltage difference between the first amount of charges and the second amount of charges stored in the sensing capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A display device, comprising:
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a first surface; a sensing capacitor having a sensing input electrode and a sensing output electrode, wherein the sensing capacitor stores a first amount of changes and the sensing capacitor stored a second amount of charges when an external object contacts on the first surface and wherein the sensing input electrode and the sensing output electrode are a mesh-shaped metal electrodes, each having an opening for transmitting light from a pixel to the first surface; and a sensing signal processor connected with the sensing output electrode, wherein the sensing signal processor determines whether an external object contacts on the first surface based on a voltage difference between the first amount of charges and the second amount of charges stored in the sensing capacitor. - View Dependent Claims (17, 18, 19, 20)
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Specification