Display Panel and Display Device
First Claim
1. A display panelhaving a plurality of scanning lines and a plurality of signal lines formed to form a matrix, andhaving, respectively at intersections between the scanning lines and the signal lines,drive switching elements turned on and off according to scanning voltages fed to the scanning lines andpixel circuits connected via the drive switching elements to the signal lines,whereinthe display panel has detection switching elements of which control electrodes are connected respectively to the scanning lines, andfirst conducting electrodes of the detection switching elements are connected together so that, from the first conducting electrodes thus connected together, a detection signal representing a logical sum of any on-state among the detection switching elements is outputted.
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Accused Products
Abstract
In one embodiment of the present invention, a display panel is disclosed in which a plurality of scanning lines and a plurality of signal lines are formed in a matrix shape, and in which driving transistors controlled to be turned ON/OFF by scanning voltages to be applied to scanning lines and pixel circuits connected with the signal lines through the driving transistors are disposed at the individual intersections between the scanning lines and the signal lines. The display panel includes a plurality of detecting transistors having their individual gates connected with the individual scanning lines. The plural detecting transistors have their drains commonly connected, and a detection signal indicating the logical sum of the ON states of the detecting transistors are outputted from the commonly connected drains.
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Citations
13 Claims
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1. A display panel
having a plurality of scanning lines and a plurality of signal lines formed to form a matrix, and having, respectively at intersections between the scanning lines and the signal lines, drive switching elements turned on and off according to scanning voltages fed to the scanning lines and pixel circuits connected via the drive switching elements to the signal lines, wherein the display panel has detection switching elements of which control electrodes are connected respectively to the scanning lines, and first conducting electrodes of the detection switching elements are connected together so that, from the first conducting electrodes thus connected together, a detection signal representing a logical sum of any on-state among the detection switching elements is outputted.
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9. A display device having
a display panel having a plurality of scanning lines and a plurality of signal lines formed to form a matrix, and having, respectively at intersections between the scanning lines and the signal lines, drive switching elements turned on and off according to scanning voltages fed to the scanning lines and pixel circuits connected via the drive switching elements to the signal lines, a signal line driver connected to first ends of the signal lines, and a scanning line driver feeding one after another of the scanning lines with a first-level scanning voltage that turns the drive switching elements on, wherein the display device further comprises: -
a second wiring condition detector connected to second ends of the signal lines. wherein while the scanning line driver is feeding all the scanning lines with a second-level scanning voltage that turns the drive switching elements off, the signal line driver feeds an inspection voltage having a predetermined level to the signal lines so that, based on how the inspection voltage is transmitted, the second wiring condition detector detects wiring condition of the signal lines. - View Dependent Claims (10)
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Specification