EL display apparatus
First Claim
1. An electroluminescent (EL) display apparatus, comprising:
- a display screen including a plurality of gate signal lines which is arranged to intersect a plurality of source signal lines, and a pixel provided with an EL device corresponding to each intersection of the plurality of gate signal lines and the plurality of source signal lines;
a driving transistor provided for each pixel to supply a current to the EL device;
a first switch transistor provided for each pixel on a current path through which the current flows from a power line through the driving transistor to the EL device; and
a gate driver circuit connected to the plurality of gate signal lines,wherein the gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate a plurality of band-shaped non-display regions and a plurality of band-shaped display regions on the display screen and to move the plurality of band-shaped non-display regions and the plurality of band-shaped display regions relative to the display screen,the plurality of band-shaped non-display regions is spaced apart on the display screen with one of the plurality of band-shaped display regions being between a pair of the plurality of band-shaped non-display regions,the plurality of band-shaped display regions is spaced apart on the display screen with one of the plurality of band-shaped non-display regions being between a pair of the plurality of band-shaped display regions, andthe gate driver circuit is configured to change a duty ratio by which the display screen is divided into the plurality of band-shaped non-display regions and the plurality of band-shaped display regions.
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Abstract
An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the band-shaped non-display regions and the band-shaped display regions relative to the display screen.
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Citations
17 Claims
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1. An electroluminescent (EL) display apparatus, comprising:
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a display screen including a plurality of gate signal lines which is arranged to intersect a plurality of source signal lines, and a pixel provided with an EL device corresponding to each intersection of the plurality of gate signal lines and the plurality of source signal lines; a driving transistor provided for each pixel to supply a current to the EL device; a first switch transistor provided for each pixel on a current path through which the current flows from a power line through the driving transistor to the EL device; and a gate driver circuit connected to the plurality of gate signal lines, wherein the gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate a plurality of band-shaped non-display regions and a plurality of band-shaped display regions on the display screen and to move the plurality of band-shaped non-display regions and the plurality of band-shaped display regions relative to the display screen, the plurality of band-shaped non-display regions is spaced apart on the display screen with one of the plurality of band-shaped display regions being between a pair of the plurality of band-shaped non-display regions, the plurality of band-shaped display regions is spaced apart on the display screen with one of the plurality of band-shaped non-display regions being between a pair of the plurality of band-shaped display regions, and the gate driver circuit is configured to change a duty ratio by which the display screen is divided into the plurality of band-shaped non-display regions and the plurality of band-shaped display regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of controlling an electroluminescent (EL) display apparatus,
the EL display apparatus comprising: -
a display screen including a plurality of gate signal lines which is arranged to intersect a plurality of source signal lines, and a pixel provided with an EL device corresponding to each intersection of the plurality of gate signal lines and the plurality of source signal lines; a driving transistor provided for each pixel to supply a current to the EL device; a first switch transistor provided for each pixel on a current path through which the current flows from a power line through the driving transistor to the EL device; and a gate driver circuit connected to the plurality of gate signal lines, the method comprising; turning the first switch transistor on and off to simultaneously generate a plurality of band-shaped non-display regions and a plurality of band-shaped display regions on the display screen and to move the plurality of band-shaped non-display regions and the plurality of band-shaped display regions relative to the display screen, wherein the plurality of band-shaped non-display regions is spaced apart on the display screen with one of the plurality of band-shaped display regions being between a pair of the plurality of band-shaped non-display regions, the plurality of band-shaped display regions is spaced apart on the display screen with one of the plurality of band-shaped non-display regions being between a pair of the plurality of band-shaped display regions, and the gate driver circuit is configured to change a duty ratio by which the display screen is divided into the plurality of band-shaped non-display regions and the plurality of band-shaped display regions.
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Specification