DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY PANEL ASSEMBLY, AND TESTING METHOD OF DISPLAY DEVICE
First Claim
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1. A display device comprising:
- a first substrate having a plurality of test spacers; and
a second substrate having a plurality of sensing unit test lines facing the test spacers, respectively,wherein surface heights of the sensing unit test lines are different from each other.
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Abstract
A display device having a sensing unit includes a first substrate having a plurality of test spacers, and a second substrate having a plurality of sensing unit test lines facing the test spacers, respectively. The surface heights of the sensing unit test lines are different from each other. The heights of the test spacers are substantially the same. The second substrate further includes a plurality of height difference portions formed under the sensing unit test lines, and the number of height difference portions formed under the sensing unit test lines is different for different sensing unit test lines.
28 Citations
40 Claims
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1. A display device comprising:
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a first substrate having a plurality of test spacers; and a second substrate having a plurality of sensing unit test lines facing the test spacers, respectively, wherein surface heights of the sensing unit test lines are different from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A liquid crystal panel assembly comprising:
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a plurality of test spacers; a plurality of sensing unit test lines facing the respective test spacers; a plurality of signal transmitting units connected to the sensing unit test lines, respectively; a signal input line that is supplied with a control signal controlling the signal transmitting units from an external device; a plurality of pixel test lines connected to the signal transmitting units, respectively; and a plurality of pixels connected to the pixel test lines, wherein surface heights of the sensing unit test lines are different from each other. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A testing method of a display device, the display device comprising a plurality of test spacers, a plurality of sensing unit test lines facing the test spacers, respectively, and having different surface heights from each other, a plurality of switching elements respectively connected to the sensing unit test lines, signal input lines supplied with a control signal from an external device to control the switching elements, a plurality of pixel test lines connected to the switching elements, and a plurality of pixels connected to the pixel test lines, the method comprising:
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applying a signal turning off the switching elements to the signal input lines; applying first test signals to the pixel test lines to test the pixels; stopping application of the first test signals and applying a signal turning on the switching elements to the signal input lines; testing the pixels; and cutting connection between the pixels and the pixel test lines.
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Specification