Light emitting panel and light emitting display
First Claim
1. A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, wherein at least one of the pixel circuits comprises:
- a capacitor for charging a voltage which corresponds to one of the data signals transmitted from a corresponding one of the data lines;
a driving transistor for outputting a current corresponding to the voltage charged in the capacitor;
a plurality of emit elements for emitting a light corresponding to the current outputted from the driving transistor; and
a plurality of emit control transistors coupled between the driving transistor and the plurality of emit elements, wherein the emit control transistors comprise a plurality of semiconductor layers having inner resistances that are substantially the same as each other.
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Accused Products
Abstract
A display device having components that are efficiently arranged in a pixel. A pixel circuit includes a capacitor for charging a voltage which corresponds to a data signal transmitted from a data line. A first transistor of the pixel circuit outputs a current corresponding to the voltage charged in the capacitor. A plurality of emit elements emit a light corresponding to the current outputted from the driving transistor. A plurality of emit control transistors are coupled between the first transistor and the plurality of emit elements. The emit control transistors include a plurality of semiconductor layers having inner resistances that are substantially the same as each other.
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Citations
17 Claims
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1. A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, wherein
at least one of the pixel circuits comprises: -
a capacitor for charging a voltage which corresponds to one of the data signals transmitted from a corresponding one of the data lines;
a driving transistor for outputting a current corresponding to the voltage charged in the capacitor;
a plurality of emit elements for emitting a light corresponding to the current outputted from the driving transistor; and
a plurality of emit control transistors coupled between the driving transistor and the plurality of emit elements, wherein the emit control transistors comprise a plurality of semiconductor layers having inner resistances that are substantially the same as each other. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, wherein
at least one of the pixel circuits arranged in a pixel area comprises: -
first, second, and third emit elements comprising pixel electrodes to which a current is applied, for emitting light corresponding to the applied current; and
first, second, and third semiconductor layers respectively coupled to pixel electrodes of the first, second, and third emit elements through first, second, and third contact holes; and
first, second, and third control electrode lines being insulated and crossing the first, second, and third semiconductor layers and being substantially parallel to each other, wherein ratios of a length and a width of the first semiconductor layer, the second semiconductor layer, and the third semiconductor layer are substantially the same as each other. - View Dependent Claims (8, 9, 10)
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11. A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, wherein
at least one of the pixel circuits comprises: -
a first capacitor for charging a voltage which corresponds to one of the data signals transmitted from a corresponding one of the data lines;
a first transistor for outputting a current which corresponds to the voltage charged in the first capacitor;
first, second, and third emit elements for emitting a light corresponding to the current outputted from the first transistor; and
first, second, and third emit control transistors respectively coupled between the first transistor and the first, second, and third emit elements, wherein the first semiconductor layer forming the first emit control transistor is arranged generally symmetrically with the second semiconductor layer forming the second emit control transistor with respect to the third semiconductor layer forming the third emit control transistor. - View Dependent Claims (12, 13, 14)
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15. A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines and arranged in an array format, wherein
at least one of the pixel circuits arranged in a pixel area comprises: -
first, second, and third emit elements comprising pixel electrodes to which a current is applied, for emitting light corresponding to the applied current;
semiconductor layers comprising a first semiconductor layer area coupled to a pixel electrode of the first emit element through a first contact hole, a second semiconductor layer area coupled to a pixel electrode of the second emit element through a second contact hole, and a third semiconductor layer area coupled to a pixel electrode of the third emit element through a third contact hole; and
first, second, and third control electrode lines which are insulated and cross the semiconductor layers and are substantially parallel to each other, wherein the first semiconductor layer area is arranged generally symmetrically with the third semiconductor layer area with respect to the second semiconductor layer area. - View Dependent Claims (16, 17)
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Specification