DRIVE CIRCUIT, ORGANIC LIGHT-EMITTING DIODE DISPLAY, AND METHODS FOR FABRICATING THE SAME
First Claim
1. A drive circuit, comprising:
- a driving transistor, comprising a first gate, a first semiconductor layer disposed above the first gate, an etch stopping layer disposed above the first semiconductor layer, and a first source and a first drain which are disposed on two sides of the first semiconductor layer; and
a switching transistor, comprising a second gate, a second semiconductor layer disposed above the second gate, and a second source and a second drain which are disposed on two sides of the second semiconductor layer, wherein the switching transistor does not include an etch stopping layer;
wherein the first semiconductor layer and the second semiconductor layer are made of an oxide semiconductor material.
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Accused Products
Abstract
A drive circuit, an organic light-emitting diode display, and methods for fabricating the same are provided. The drive circuit includes: a driving transistor, including a first gate, a first semiconductor layer disposed above the first gate, an etch stopping layer disposed on the first semiconductor layer, and a first source and a first drain which are disposed on the two sides of the first semiconductor layer, the first semiconductor layer being made of oxide semiconductor material; and a switching transistor, including a second gate, a second semiconductor layer disposed above the second gate, and a second source and a second drain which are disposed on two sides of the second semiconductor layer, the second semiconductor layer being made of oxide semiconductor material. In the drive circuit, reliability and uniformity of the drive transistors are improved, and parasitic capacitance of the switching transistor decreases.
6 Citations
14 Claims
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1. A drive circuit, comprising:
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a driving transistor, comprising a first gate, a first semiconductor layer disposed above the first gate, an etch stopping layer disposed above the first semiconductor layer, and a first source and a first drain which are disposed on two sides of the first semiconductor layer; and a switching transistor, comprising a second gate, a second semiconductor layer disposed above the second gate, and a second source and a second drain which are disposed on two sides of the second semiconductor layer, wherein the switching transistor does not include an etch stopping layer; wherein the first semiconductor layer and the second semiconductor layer are made of an oxide semiconductor material. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An organic light-emitting diode display, comprising:
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a substrate; an organic light-emitting diode disposed on the substrate; and a drive circuit, comprising; a driving transistor, comprising a first gate, a first semiconductor layer disposed above the first gate, an etch stopping layer disposed above the first semiconductor layer, and a first source and a first drain which are disposed on two sides of the first semiconductor layer; and a switching transistor, comprising a second gate, a second semiconductor layer disposed above the second gate, and a second source and a second drain which are disposed on two sides of the second semiconductor layer, wherein the switching transistor does not include an etch stopping layer; wherein the first semiconductor layer and the second semiconductor layer are made of an oxide semiconductor material; wherein the drive circuit is disposed on the substrate.
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9. A method for fabricating a drive circuit, comprising:
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providing a substrate; forming a first gate and a second gate on the substrate; forming a gate dielectric layer to cover the first gate and the second gate; forming a first semiconductor layer and a second semiconductor layer above the gate dielectric layer, wherein the first semiconductor layer corresponds to the first gate and is made of an oxide semiconductor material, and the second semiconductor layer corresponds to the second gate and is made of an oxide semiconductor material; forming an etch stopping layer above the first semiconductor layer; after the etch stopping layer is formed, forming a driving transistor by forming a first source and a first drain respectively on two sides of the first semiconductor layer; and
forming a switching transistor by forming a second source and a second drain respectively on two sides of the second semiconductor layer; andforming a dielectric layer to cover the driving transistor and the switching transistor. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification