Photosensor and display device including the same
First Claim
Patent Images
1. A photosensor comprising:
- a substrate;
a first electrode layer positioned on the substrate and including a reflection part having an inclination surface, the reflection part reflecting light, and the inclination surface being inclined relative to a surface of the substrate;
a first semiconductor layer positioned on the first electrode layer;
a second electrode layer positioned on the first semiconductor layer; and
a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer,wherein the first dielectric layer and the second dielectric layer have different dielectric constant values, andwherein the first dielectric layer has a first dielectric constant value and the second dielectric layer has a second dielectric constant value, and the first dielectric constant value is greater than the second dielectric constant value.
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Abstract
A disclosed photosensor includes: a first electrode layer including a reflection part having an inclination surface; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values. Further, the disclosed display device includes a plurality of pixel areas positioned on a substrate, and a sensor unit formed in at least some pixel areas among the plurality of pixel areas.
12 Citations
18 Claims
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1. A photosensor comprising:
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a substrate; a first electrode layer positioned on the substrate and including a reflection part having an inclination surface, the reflection part reflecting light, and the inclination surface being inclined relative to a surface of the substrate; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values, and wherein the first dielectric layer has a first dielectric constant value and the second dielectric layer has a second dielectric constant value, and the first dielectric constant value is greater than the second dielectric constant value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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a plurality of pixel areas positioned on a substrate; and a sensor unit formed in at least some pixel areas among the plurality of pixel areas, wherein the sensor unit includes a photosensor which comprises; a first electrode layer positioned on the substrate and including a reflection part having an inclination surface, the reflection part reflecting light, and the inclination surface being inclined relative to a surface of the substrate; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values, and wherein the first dielectric layer has a first dielectric constant value and the second dielectric layer has a second dielectric constant value, and the first dielectric constant value is greater than the second dielectric constant value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification