SYSTEM AND METHOD FOR DETECTION OF DIMENSIONS OF DISPLAY PANEL OR OTHER PATTERNED DEVICE
First Claim
1. A system comprising:
- resistance detection circuitry configured to detect a resistance of at least one resistive trace disposed around a display panel; and
data processing circuitry configured to determine, based at least in part on the detected resistance, whether the display panel is of a specified size or whether the display panel has specified dimensions, or a combination thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for evaluating whether a display panel is of specified dimensions are provided. Such a system, for example, may include resistance detection circuitry that detects a resistance of at least one resistive trace disposed around a display panel or other patterned device. Data processing circuitry may determine, based at least in part on the detected resistance, whether the display panel is of a specified size or whether the display panel has specified dimensions, or a combination thereof. Additionally or alternatively, the system may determine whether a touch sensor panel (e.g., a single-sided indium tin oxide (SITO) or double-sided indium tin oxide (DITO) touch sensor panel), a flexible printed circuit (FPC), a printed circuit board (PCB), or any other suitable patterned device, is of a specified size or has specified dimensions.
8 Citations
29 Claims
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1. A system comprising:
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resistance detection circuitry configured to detect a resistance of at least one resistive trace disposed around a display panel; and data processing circuitry configured to determine, based at least in part on the detected resistance, whether the display panel is of a specified size or whether the display panel has specified dimensions, or a combination thereof. - View Dependent Claims (2, 3, 4, 5)
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6. A method of manufacturing a display panel comprising:
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patterning at least one resistive trace on a display panel at least partially in a dead zone of the display panel that is expected to be removed when the display panel is ground to specified dimensions; grinding the display panel in an effort to achieve the specified dimensions; measuring a resistance of the at least one resistive trace on the display panel; and determining whether the display panel has been ground to the specified dimensions based at least in part on the resistance of the at least one resistive trace on the display panel. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A display panel comprising:
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an active display area configured to be visible when the display panel is installed in an electronic device; an outermost area of the display panel that has been at least partially cut or polished, or both, wherein the outermost area comprises at least one resistive trace; and a peripheral circuitry area disposed between the active display area and the outermost area, wherein the peripheral circuitry area comprises resistance detection circuitry configured to indicate a relationship between resistances of segments of the at least one resistive trace, wherein the relationship is indicative of whether the display panel has been cut or polished, or cut and polished, to specified dimensions. - View Dependent Claims (14, 15, 16, 17)
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18. An electronic display comprising:
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at least one resistive trace having a first segment with a first resistance disposed near a first edge of a display panel of the electronic display, a second segment with a second resistance disposed near a second edge of the display panel of the electronic display, a third segment with a third resistance disposed near a third edge of the display panel of the electronic display, and a fourth segment with a fourth resistance disposed near a fourth edge of the display panel of the electronic display; and resistance detection circuitry configured to detect sufficient information regarding the first segment, second segment, third segment, and fourth segment to enable the determination of the first resistance, second resistance, third resistance, and fourth resistance. - View Dependent Claims (19, 20, 21)
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22. An electronic device comprising:
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a processor configured to provide image data; and an electronic display configured to display the image data on an active display area of a display panel, wherein the display panel comprises at least one resistive trace that at least partially traverses an outer portion of the display panel, wherein the at least one resistive trace has a resistance that indicates the display panel has been ground to a size within a specified tolerance. - View Dependent Claims (23, 24, 25)
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26. A method of manufacturing a patterned device comprising:
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patterning at least one resistive trace on the patterned device on a location that is expected to be removed when the patterned device is cut to specified dimensions; cutting the patterned device; measuring a resistance of the at least one resistive trace on the patterned device; and determining whether the patterned device has been cut to the specified dimensions based at least in part on the resistance of the at least one resistive trace on the patterned device. - View Dependent Claims (27, 28, 29)
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Specification