Display device with electrostatic discharge protection circuitry
First Claim
1. An electronic device comprising:
- an array of pixels provided on a substrate and arranged in rows and columns, each pixel comprising a switching element; and
a plurality of row and column address lines for addressing each pixel, wherein each row and column address line is connected to a first discharge element through a first discharge device and to a second discharge element through a second discharge device, wherein the first discharge device allows the passage of charge between the address line and the first discharge element when the address line is at a potential below that of the first discharge element, and the second discharge device allows the passage of charge between the address line and the second discharge element when the address line is at a potential above that of the second discharge element, wherein at least one of the first and second discharge elements has a configuration in which the one is in an electrically floating state during ordinary operation of the electronic device.
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Accused Products
Abstract
An object of the invention is to provide electrostatic discharge damage protection during manufacturing and to suppress power consumption as low as possible during ordinary use of the electronic device having been manufactured, with avoidance of the problem of electric corrosion. An electronic device 10 comprising an array of pixels 12 wherein row and column address lines 18, 20 for addressing each pixel 12 are arranged. Each address line is connected to a discharge line 30, 32 through a discharge circuit 38. The circuit allows the passage of charge between the address line and the first discharge line 30 when the address line is at a potential below that of the first discharge line, and allows the passage of charge between the address line and the second discharge line 32 when the address line is at a potential above that of the second discharge line. The discharge elements have a configuration in which the one is in an electrically floating state during ordinary operation of the electronic device, or a conductive path making conduction in order that leakage current of the discharge device occurring during ordinary operation of the electronic device can be used for the peripheral circuitry.
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Citations
14 Claims
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1. An electronic device comprising:
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an array of pixels provided on a substrate and arranged in rows and columns, each pixel comprising a switching element; and
a plurality of row and column address lines for addressing each pixel, wherein each row and column address line is connected to a first discharge element through a first discharge device and to a second discharge element through a second discharge device, wherein the first discharge device allows the passage of charge between the address line and the first discharge element when the address line is at a potential below that of the first discharge element, and the second discharge device allows the passage of charge between the address line and the second discharge element when the address line is at a potential above that of the second discharge element, wherein at least one of the first and second discharge elements has a configuration in which the one is in an electrically floating state during ordinary operation of the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
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12. An electronic device comprising:
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an array of pixels provided on a substrate and arranged in rows and columns, each pixel comprising a switching element; and
a plurality of row and column address lines for addressing each pixel, wherein each row and column address line is connected to a first discharge element through a first discharge device and to a second discharge element through a second discharge device, wherein the first discharge device allows the passage of charge between the address line and the first discharge element when the address line is at a potential below that of the first discharge element, and the second discharge device allows the passage of charge between the address line and the second discharge element when the address line is at a potential above that of the second discharge element, wherein at least one of the first and second discharge elements has a conductive path making conduction in order that leakage current of the discharge device occurring during ordinary operation of the electronic device can be used for peripheral circuitry of the pixel array. - View Dependent Claims (13)
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Specification