Display apparatus including barrier panel and touch sensing part
First Claim
Patent Images
1. A display apparatus, comprising:
- a display panel configured to display a first image every frame period in a two-dimensional (2D) mode, and display a second image every frame period in a three-dimensional (3D) mode;
a barrier panel disposed on the display panel and comprising a plurality of first electrodes extending in a first direction and arranged in a second direction crossing the first direction, a plurality of second electrodes extending in the second direction and arranged in the first direction, and a liquid crystal layer disposed between the first and second electrodes, wherein the barrier panel forms a barrier pattern configured to separate the second image into a left-eye image and a right-eye image;
a touch sensing part comprising a plurality of third electrodes disposed on the second electrodes, extending in the first direction, and arranged in the second direction, wherein the third electrodes are capacitively coupled to the second electrodes;
a coordinate calculator configured to detect a variation of a capacitance between the second electrodes and the third electrodes, and calculate coordinate information of a touch point; and
a barrier panel driver configured to apply a driving voltage to the first electrodes and the second electrodes, wherein the coordinate calculator is electrically connected to each of the third electrodes,wherein the barrier panel is synchronized with the display panel, the barrier panel is configured to transmit the first image when the display panel is operated in the 2D mode, and the barrier panel is configured to form the barrier pattern when the display panel is operated in the 3D mode,wherein a frame period comprises a first period and a second period, the first electrodes are configured to receive a first driving voltage from the barrier panel driver during the frame period in the 2D mode, the second electrodes are configured to sequentially receive a second driving voltage from the barrier panel driver in the 2D mode, and the second driving voltage is activated during a portion of the first period.
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Abstract
A display apparatus includes a display panel that displays a second image in a 3D mode, a barrier panel that forms a barrier pattern that separates the second image into a left-eye image and a right-eye image, a touch sensing part that includes third electrodes capacitively coupled to a portion of the electrodes included in the barrier panel, and a coordinate calculator. The coordinate calculator measures a variation of capacitance between the portion of the electrodes included in the barrier panel and the third electrodes.
33 Citations
11 Claims
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1. A display apparatus, comprising:
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a display panel configured to display a first image every frame period in a two-dimensional (2D) mode, and display a second image every frame period in a three-dimensional (3D) mode; a barrier panel disposed on the display panel and comprising a plurality of first electrodes extending in a first direction and arranged in a second direction crossing the first direction, a plurality of second electrodes extending in the second direction and arranged in the first direction, and a liquid crystal layer disposed between the first and second electrodes, wherein the barrier panel forms a barrier pattern configured to separate the second image into a left-eye image and a right-eye image; a touch sensing part comprising a plurality of third electrodes disposed on the second electrodes, extending in the first direction, and arranged in the second direction, wherein the third electrodes are capacitively coupled to the second electrodes; a coordinate calculator configured to detect a variation of a capacitance between the second electrodes and the third electrodes, and calculate coordinate information of a touch point; and a barrier panel driver configured to apply a driving voltage to the first electrodes and the second electrodes, wherein the coordinate calculator is electrically connected to each of the third electrodes, wherein the barrier panel is synchronized with the display panel, the barrier panel is configured to transmit the first image when the display panel is operated in the 2D mode, and the barrier panel is configured to form the barrier pattern when the display panel is operated in the 3D mode, wherein a frame period comprises a first period and a second period, the first electrodes are configured to receive a first driving voltage from the barrier panel driver during the frame period in the 2D mode, the second electrodes are configured to sequentially receive a second driving voltage from the barrier panel driver in the 2D mode, and the second driving voltage is activated during a portion of the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A display apparatus, comprising:
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a display panel configured to display a first image every frame period in a two-dimensional (2D) mode, and display a second image every frame period in a three-dimensional (3D) mode; a barrier panel disposed on the display panel and comprising a plurality of first electrodes extending in a first direction and arranged in a second direction crossing the first direction, a plurality of second electrodes extending in the second direction and arranged in the first direction, and a liquid crystal layer disposed between the first and second electrodes, wherein the barrier panel forms a barrier pattern configured to separate the second image into a left-eye image and a right-eye image; a touch sensing part comprising a plurality of third electrodes disposed on the second electrodes, extending in the first direction, and arranged in the second direction, wherein the third electrodes are capacitively coupled to the second electrodes; a coordinate calculator configured to detect a variation of a capacitance between the second electrodes and the third electrodes, and calculate coordinate information of a touch point; a barrier panel driver configured to apply a driving voltage to the first electrodes and the second electrodes; and a sensing voltage supply part configured to apply a sensing voltage to the third electrodes, wherein the coordinate calculator is electrically connected to each of the second electrodes, the barrier panel is synchronized with the display panel, the barrier panel is configured to transmit the first image when the display panel is operated in the 2D mode, the barrier panel is configured to form the barrier pattern when the display panel is operated in the 3D mode, a frame period comprises a first period and a second period, the first and second electrodes are configured to receive a first driving voltage from the barrier panel driver during the frame period in the 2D mode, the third electrodes are configured to sequentially receive the sensing voltage from the sensing voltage supply part in the 2D mode, the sensing voltage is activated during a portion of the first period, a voltage of the second electrodes is varied when the second driving voltage is applied to the third electrodes, and the coordinate calculator is configured to sense a variation of the voltage of the second electrodes.
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10. A display apparatus, comprising:
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a display panel configured to display a first image every frame period in a two-dimensional (2D) mode, and display a second image every frame period in a three-dimensional (3D) mode; a barrier panel disposed on the display panel and comprising a plurality of first electrodes extending in a first direction and arranged in a second direction crossing the first direction, a plurality of second electrodes extending in the second direction and arranged in the first direction, and a liquid crystal layer disposed between the first and second electrodes, wherein the barrier panel forms a barrier pattern configured to separate the second image into a left-eye image and a right-eye image; a touch sensing part comprising a plurality of third electrodes disposed on the second electrodes, extending in the first direction, and arranged in the second direction, wherein the third electrodes are capacitively coupled to the second electrodes; a coordinate calculator configured to detect a variation of a capacitance between the second electrodes and the third electrodes, and calculate coordinate information of a touch point; a barrier panel driver configured to apply a driving voltage to the first electrodes and the second electrodes; and a sensing voltage supply part configured to apply a sensing voltage to the third electrodes, wherein the coordinate calculator is electrically connected to each of the second electrodes, the barrier panel is synchronized with the display panel, the barrier panel is configured to transmit the first image when the display panel is operated in the 2D mode, the barrier panel is configured to form the barrier pattern when the display panel is operated in the 3D mode, the first electrodes are grouped into a first electrode group and a second electrode group in the 3D mode, the first and second electrode groups are alternately arranged, the first electrode group is configured to receive the first driving voltage during a frame period, the second electrode group is configured to receive the second driving voltage, different from the first driving voltage, during the frame period, the second electrodes are configured to receive the first driving voltage or the second driving voltage during the frame period, the third electrodes are configured to sequentially receive the sensing voltage from the sensing voltage supply part, a voltage of the second electrodes is varied when the sensing voltage is applied to the third electrodes, and the coordinate calculator is configured to sense a variation of the voltage of the second electrodes. - View Dependent Claims (11)
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Specification