# US 7,608,996 B2 · Electroluminescence display and method for manufacturing the same

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- Number: US 7,608,996 B2
- Document ID: US7608996B2
- Status: Granted
- Kind: B2
- Application number: 11/356,969
- Filed: 2006-02-21
- Published: 2007-03-01
- Granted: 2009-10-27
- Earliest claimed: 2005-08-30
- Assignees: Industrial Technology Research Institute
- Inventors: Ming-Daw Chen; Jih-Fon Huang
- Web page: https://patentgrep.com/patent/US7608996B2

## CPC

- H10K 59/50: OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
- G02F 1/133377: {Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel}
- C09K 2323/00: Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- G02F 2201/44: Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
- H10K 2102/311: {Flexible OLED}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

An electroluminescence display and a manufacturing method therefore are disclosed in the present invention. The present invention combines an electroluminescence component and a passive component into a single display component for a display screen. The present invention has a simple manufacturing process, and decreases power consumption and the total size of a display screen.

## Claims

### Claim 1

An electroluminescence display, comprising:
an upper substrate and a bottom substrate;
a conductive layer formed on said bottom substrate;
a plurality of wall structures formed on said conductive layer, wherein
a first neighboring pair of said plurality of wall structures forms a first space that is filled by a first material;
a second neighboring pair of said plurality of wall structures forms a second space that is filled by a second material different from the first material; and
the first and the second neighboring pairs have a third space formed therebetween for containing a surplus of the first material in a manufacturing process of the electroluminescence display;
a plurality of seals made on said conductive layer; and
a protective layer formed on said first material located in the first space;
whereby said upper substrate and said bottom substrate are combined together.

### Claim 2 (depends on 1)

The display as claimed in claim 1, wherein the electroluminescence display is a passive reflective component or a passive transparent component.

### Claim 3 (depends on 1)

The display as claimed in claim 1, wherein the upper substrate and the bottom substrate are a plastic substrate, metal-foil substrate or a glass substrate.

### Claim 4 (depends on 1)

The display as claimed in claim 1, wherein the wall structures are formed via an etching process.

### Claim 5 (depends on 1)

The display as claimed in claim 1, wherein the first and the second space are filled via a one-drop-fill process.

### Claim 6 (depends on 1)

The display as claimed in claim 1, wherein the second material is made of an organic light-emitting diode.

### Claim 7 (depends on 6)

The display as claimed in claim 6, wherein the organic light-emitting diode is a top emitter, a bottom emitter organic light-emitting diode or two-side emitter organic light-emitting diode.

### Claim 8 (depends on 7)

The display as claimed in claim 7, wherein a cathode is a transparent electrode when the organic light-emitting diode is the top emitter.

### Claim 9 (depends on 1)

The display as claimed in claim 1, wherein the first material is a liquid crystal display medium.

### Claim 10

An electroluminescence display, comprising:
an upper substrate and a bottom substrate;
a conductive layer formed on said bottom substrate;
a plurality of wall structures formed on said conductive layer, wherein
at least a first neighboring pair of said plurality of wall structures forms a first space that is filled by a liquid crystal display medium;
at least a second neighboring pair of said plurality of wall structures forms a second space that is filled by an organic material; and
at least a third neighboring pair of said plurality of wall structures forms a third space for containing a surplus of said liquid crystal display medium, wherein the surplus liquid crystal display medium of the electroluminescence display exudes inside said third space when a pressing process is performed;
a plurality of seals made on said conductive layer; and
a protective layer formed on said liquid crystal display medium located in the first space;
whereby said upper substrate and said bottom substrate are combined together.