# US 9,520,451 B2 · Organic light-emitting diode display device and method of manufacturing the same

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- Number: US 9,520,451 B2
- Document ID: US9520451B2
- Status: Granted
- Kind: B2
- Application number: 14/464,703
- Filed: 2014-08-20
- Published: 2015-05-21
- Granted: 2016-12-13
- Earliest claimed: 2013-11-18
- Assignees: E Ink Holdings Inc.
- Applicants: E Ink Holdings Inc.
- Inventors: Wei-Chou Lan; Ted-Hong Shinn; Xue-Hung Tsai; Chi-Liang Wu; Chih-Hsiang Yang
- Web page: https://patentgrep.com/patent/US9520451B2

## CPC

- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 50/182: {OLED comprising a fiber structure}
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

An organic light-emitting diode display device includes a substrate, a light-absorption layer, an active array structure, and an organic light-emitting diode. The substrate has a first and a second surface opposite to each other. The light-absorption layer is disposed on the first surface, and has at least one opening exposing a portion of the first surface. The active array structure is positioned on the second surface, and includes at least one data line, at least one gate line, and at least one switching device electrically connected to the gate and data lines. The light-absorption layer overlaps at least one of the data line and the gate line when viewed in a direction perpendicular to the substrate. The organic light-emitting diode is electrically connected to the switching device, and the organic light-emitting diode overlaps the opening when viewed in the direction perpendicular to the substrate.

## Claims

### Claim 1

An organic light-emitting diode display device comprising:
a substrate having a first surface and a second surface opposite to the first surface;
a light-absorption layer disposed on the first surface, and the light-absorption layer having at test one opening exposing a portion of the first surface, wherein the light-absorption layer comprises a matrix pattern having a first stripe and a second stripe respectively extending in a first direction and a second direction, and a width of the second stripe is greater than a width of the first stripe;
an active array structure positioned on the second surface and comprising
at least one data line;
at least one gate line extending in the first direction and aligned with the first stripe of the light-absorption layer;
at least one switching device electrically connected to the gate line and the data line, wherein a projection of the light-absorption layer on the substrate overlaps a projection of the data line and a projection of the gate line on the substrate in a direction perpendicular to the substrate;
at least one capacitor line;
at least one capacitor structure connected to the capacitor line, wherein the switching, device has a drain electrode connected to the capacitor structure, and the projection of the light-absorption layer on the substrate overlaps a projection of the capacitor line on the substrate in the direction perpendicular to the substrate;
at least one driver transistor; and
at least one driving line electrically connected to the driving transistor, wherein both the driving line and the capacitor line extend in the second direction, and both the driving line and the capacitor line are aligned with the second stripe of the light-absorption layer; and
an organic light-emitting diode electrically connected to the switching device, and a projection of the organic light-emitting diode on the substrate overlapping a projection of the opening on the substrate in the direction perpendicular to the substrate.

### Claim 2 (depends on 1)

The organic light-emitting diode display device of claim 1, wherein the organic light-emitting diode comprises a first electrode, a second electrode, and an organic light-emitting layer disposed between the first electrode and the second electrode, and the first electrode is positioned between the organic light-emitting layer and the active array structure.

### Claim 3 (depends on 1)

The organic light-emitting diode display device of claim 1, wherein a width of the organic light-emitting diode is approximately equal to a width of the opening.

### Claim 4

A method of manufacturing an organic light-emitting diode display device comprising, the steps in sequence of:
(a) providing a substrate having a first surface and a second surface opposite to the first surface;
(b) forming an active array structure on the first surface;
(c) forming a first protective layer to cover the active array structure;
(d) forming a light-absorption layer on the second surface, the light-absorption layer having a plurality of openings exposing a portion of the second surface;
(e) forming a second protective layer to cover the light-absorption layer;
(f) removing the first protective layer to expose the active array structure; and
(g) forming an organic light-emitting diode on the exposed active array structure;
wherein one of the first and second protective layers comprises a negative photoresist, and the other one of the first and second protective layers comprises a positive photoresist.

### Claim 5 (depends on 4)

The method of manufacturing the organic light-emitting diode display device of claim 4, further comprising: forming a protective substrate to cover the organic light-emitting diode after step (g).

### Claim 6 (depends on 4)

The method of manufacturing the organic light-emitting diode display device of claim 4, further comprising: removing the second protective layer after step (g).