Display apparatus and method of driving the same
First Claim
1. A display apparatus comprising:
- a display panel including an array substrate having a pixel electrode, an opposite substrate having a common electrode facing the pixel electrode and a liquid crystal layer disposed between the array substrate and the opposite substrate;
a sensing array configured to output an initial voltage in response to an initial thickness of the liquid crystal layer during an initializing time and a sensing voltage in response to a varied thickness of the liquid crystal layer due to an external force during a sensing time, the sensing array being formed on the display panel; and
a control part configured to compare the sensing voltage with the initial voltage, to determine whether or not the external force is applied to the display panel and generate information indicating a position to which the external force is applied.
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Abstract
A display panel includes an array substrate, an opposite substrate and a liquid crystal layer disposed between the array substrate and the opposite substrate. A sensing array outputs an initial voltage in response to an initial thickness of the liquid crystal layer during an initializing time and a sensing voltage in response to a varied thickness of the liquid crystal layer due to external force during a sensing time. A control part compares the sensing voltage with the initial voltage, determines whether the external force is applied to the display panel, and generates information indicating a position to which the external force is applied. Thus, the display apparatus may improve sensing ability to an external signal inputted through the display panel thereof.
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Citations
30 Claims
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1. A display apparatus comprising:
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a display panel including an array substrate having a pixel electrode, an opposite substrate having a common electrode facing the pixel electrode and a liquid crystal layer disposed between the array substrate and the opposite substrate;
a sensing array configured to output an initial voltage in response to an initial thickness of the liquid crystal layer during an initializing time and a sensing voltage in response to a varied thickness of the liquid crystal layer due to an external force during a sensing time, the sensing array being formed on the display panel; and
a control part configured to compare the sensing voltage with the initial voltage, to determine whether or not the external force is applied to the display panel and generate information indicating a position to which the external force is applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of driving a display apparatus, the method comprising:
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generating an initial voltage in response to an initial thickness of a liquid crystal layer during an initializing time;
generating a sensing voltage in response to a varied thickness of the liquid crystal layer due to an external force during a sensing time;
comparing the initial voltage with the sensing voltage to determine whether or not the external force is applied to a display panel; and
generating information indicating a position to which the external force is applied on the display panel. - View Dependent Claims (30)
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Specification