Organic light-emitting diode display device
An organic light-emitting diode display device includes a first light-emitting layer, a first anode, a first reflective pattern, and a dielectric material. The first light-emitting layer, the first anode, and the first reflective pattern are located in a first sub-pixel region. The first anode is disposed under the first light-emitting layer in a vertical direction, and the first reflective pattern is disposed under the first anode in the vertical direction. The dielectric material is partly disposed between the first anode and the first reflective pattern, and the first reflective pattern is electrically connected with the first anode.
1 . An organic light-emitting diode display device, comprising:
a first light-emitting layer located in a first sub-pixel region;
a first anode disposed under the first light-emitting layer in a vertical direction and located in the first sub-pixel region;
a first reflective pattern disposed under the first anode in the vertical direction and located in the first sub-pixel region;
a dielectric material partly disposed between the first anode and the first reflective pattern, wherein the first reflective pattern is electrically connected with the first anode; and
a first reflective via structure disposed between the first anode and the first reflective pattern, wherein the first reflective pattern is electrically connected with the first anode through the first reflective via structure.
2 . The organic light-emitting diode display device according to claim 1 , wherein a material composition of the first reflective via structure is identical to a material composition of the first reflective pattern.
3 . The organic light-emitting diode display device according to claim 1 , wherein the first reflective via structure is directly connected with the first reflective pattern and the first anode.
4 . The organic light-emitting diode display device according to claim 1 , wherein a top portion of the first reflective via structure is connected with the first anode, a bottom portion of the first reflective via structure is connected with the first reflective pattern, and a width of the bottom portion is greater than a width of the top portion.
5 . The organic light-emitting diode display device according to claim 1 , wherein the first reflective via structure surrounds a part of the dielectric material located between the first anode and the first reflective pattern.
6 . The organic light-emitting diode display device according to claim 1 , wherein a sidewall of the first reflective via structure and a top surface of the first reflective pattern constitute a recess structure.
7 . The organic light-emitting diode display device according to claim 6 , wherein a projection area of the recess structure in the vertical direction is greater than a projection area of the first light-emitting layer in the vertical direction.
8 . The organic light-emitting diode display device according to claim 6 , wherein the recess structure is a concave mirror located under the first light-emitting layer in the vertical direction.
9 . The organic light-emitting diode display device according to claim 1 , wherein a sidewall of the first reflective via structure is a flat surface.
10 . The organic light-emitting diode display device according to claim 1 , wherein a sidewall of the first reflective via structure is a curved surface.
11 . The organic light-emitting diode display device according to claim 1 , wherein the first light-emitting layer does not overlap the first reflective via structure when the organic light-emitting diode display device is viewed in the vertical direction.
12 . The organic light-emitting diode display device according to claim 1 , wherein the first anode comprises a transparent electrically conductive material.
13 . The organic light-emitting diode display device according to claim 1 , wherein the first reflective pattern comprises an electrically conductive metallic material.
14 . The organic light-emitting diode display device according to claim 1 , further comprising:
a second light-emitting layer located in a second sub-pixel region;
a second anode disposed under the second light-emitting layer in the vertical direction and located in the second sub-pixel region;
a second reflective pattern disposed under the second anode in the vertical direction and located in the second sub-pixel region, wherein the dielectric material is further partly disposed between the second anode and the second reflective pattern; and
a second reflective via structure disposed between the second anode and the second reflective pattern, wherein the second reflective pattern is electrically connected with the second anode through the second reflective via structure.
15 . The organic light-emitting diode display device according to claim 14 , wherein the second reflective pattern is physically and electrically separated from the first reflective pattern.
16 . The organic light-emitting diode display device according to claim 14 , further comprising:
a cathode disposed on the first light-emitting layer and the second light-emitting layer, wherein the first anode and the second anode are physically and electrically separated from each other.
17 . The organic light-emitting diode display device according to claim 1 , further comprising:
a device substrate, wherein the first reflective pattern, the first anode, and the first light-emitting layer are disposed on the device substrate, the first reflective pattern is located between the first anode and the device substrate, and the first reflective pattern is electrically connected with the device substrate.
18 . The organic light-emitting diode display device according to claim 17 , further comprising:
a dielectric layer disposed between the device substrate and the first reflective pattern; and
an electrically conductive via structure disposed in the dielectric layer, wherein the electrically conductive via structure is electrically connecting with the first reflective pattern and the device substrate.
19 . The organic light-emitting diode display device according to claim 17 , wherein the device substrate comprises:
a semiconductor substrate; and
transistors, wherein each of the transistors is partly disposed in the semiconductor substrate, and one of the transistors is electrically connected with the first anode through the first reflective pattern.