KR960007994B1 - Electro luminescent display device - Google Patents
Electro luminescent display device Download PDFInfo
- Publication number
- KR960007994B1 KR960007994B1 KR1019920026443A KR920026443A KR960007994B1 KR 960007994 B1 KR960007994 B1 KR 960007994B1 KR 1019920026443 A KR1019920026443 A KR 1019920026443A KR 920026443 A KR920026443 A KR 920026443A KR 960007994 B1 KR960007994 B1 KR 960007994B1
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- South Korea
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- display device
- electrode
- transparent
- display unit
- insulating layer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
Abstract
Description
첨부도면은 본 발명에 따른 디스플레이장치의 구성 개요도이다.The accompanying drawings are schematic configurations of a display device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 전면유리기판 2 : 후면유리기판1: front glass substrate 2: rear glass substrate
3 : 전계발광 디스플레이유니트 4 : 플라즈마방전 디스플레이유니트3: electroluminescent display unit 4: plasma discharge display unit
5 : 투명횡전극 6 : 제1절연층5: transparent transverse electrode 6: first insulating layer
7 : 적색 및 녹색발광 형광층 8 : 제2절연층7: red and green light emitting fluorescent layer 8: second insulating layer
9 : 투명종전극 10 : 투명횡전극9: transparent vertical electrode 10: transparent transverse electrode
11 : 청색발광 형광층 12 : 방전셀11: blue light emitting fluorescent layer 12: discharge cell
13 : 알루미늄종전극 14 : 배리어13 aluminum type electrode 14 barrier
15 : 제3절연층15: third insulating layer
본 발명은 전계발광 디스플레이(Electro Luminescent Display)장치의 개선에 관한 것으로, 특히 고품위의 칼라화상의 표현이 가능하도록 플라즈마방전 디스플레이장치를 결합구성한 전계발광 디스플레이장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an electroluminescent display device, and more particularly, to an electroluminescent display device in which a plasma discharge display device is combined to enable a high quality color image.
전계발광 디스플레이장치(이하 ELD로 약칭함)는 가스방전을 이용하는 플라즈마방전 디스플레이장치(이하 PDP로 약칭함)와 기본적으로 유사한 구조 및 구동방식을 가지나 이것이 PDP와 다른 점은 양,음극의 전극들 사이에, 이들 전극 사이에 걸리는 전계에 의해 발광될 수 있는 고체로 된 얇은 박막상의 형광층이 존재한다는 것이며, 이는 그러한 고체상의 얇은 발광수단의 채용으로 인해 기체 방전쉘을 사용하여 화상을 표시하는 PDP보다 현저히 얇은 두께로 용이하게 제작사용할 수 있는 장점이 있다.The electroluminescent display device (hereinafter abbreviated as ELD) has a similar structure and driving method as the plasma discharge display device using gas discharge (hereinafter abbreviated as PDP), but this is different from the PDP between positive and negative electrodes. On the other hand, there exists a thin, thin, fluorescent layer of solids that can be emitted by an electric field across these electrodes, which is more than a PDP displaying an image using a gas discharge shell due to the adoption of such a solid thin light emitting means. Remarkably thin thickness has an advantage that can be easily used.
한편, 이러한 ELD 또는 PDP와 같은 표시장치를 통해 칼라화상을 표현하기 위해서는 청, 녹, 적 삼색의 발광이 필요하게 되는데, ELD의 경우 이를 위해 개발된 형광체들중 녹색 및 적색의 형광체는 필요한 상당한 수준의 휘도가 얻어지나 청색의 형광체는 그 휘도가 수준 이하로 현저히 떨어져서 완전한 칼라화상의 실현을 이루지 못하고 있으며, 반면 PDP의 경우는 칼라화상의 실현은 가능하지만 미소가공이 어려운 기체 방전셀들을 이용하는 구조적 높은 해상도의 고화질을 얻어내기 어려운 단점을 지니고 있다.On the other hand, in order to express a color image through a display device such as an ELD or a PDP, emission of three colors of blue, green, and red is required. In the case of the ELD, green and red phosphors are required at a considerable level. Although the luminance of the blue phosphor is significantly lower than the level, the blue phosphor does not realize a full color image. On the other hand, in the case of the PDP, a high structure is achieved by using gas discharge cells, which can realize a color image but are difficult to process. It has a drawback that it is difficult to obtain high quality of resolution.
본 발명은 이러한 배경에서 연구된 것으로, 그 목적은 녹색 및 적색발광을 하도록 구성된 전계발광 디스플레이장치에 청색발광을 하도록 구성된 플라즈마방전 디스플레이장치를 적합하게 조합배치하여 전체적으로 고품위의 칼라화상표시가 가능한 새롭고 효율적인 디스플레이장치를 제공하고자 하는 것이다.The present invention has been studied in this context, and its object is to provide a new and efficient color image display as a whole by suitably placing a plasma discharge display device configured to emit blue light in an electroluminescent display device configured to emit green and red light. It is to provide a display device.
이하에서, 본 발명을 첨부도면에 예시된 실시예를 통해 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the embodiments illustrated in the accompanying drawings.
첨부도면은 본 발명에 따른 디스플레이장치의 구성개요를 나타낸 것인데, 이 디스플레이장치는 도시된 바와 같이 전면 및 후면유리기판(1)(2) 사이에 녹색 및 적색의 발광을 하도록 구성된 전계발광 디스플레이유니트(3)와 청색의 발광을 하도록 구성된 플라즈마방전 디스플레이유니트(4)를 중첩배치하여서 된 구성을 가진다.The accompanying drawings show the configuration of the display device according to the present invention, which is an electroluminescent display unit configured to emit green and red light between the front and rear glass substrates (1) (2) as shown. 3) and a plasma discharge display unit 4 configured to emit blue light, are superimposed.
상기에서, 전계발광 디스플레이유니트(3)는 전면유리기판(1) 이면상에 산화주석인듐(ITO)을 도포하여 이를 평판사진(photolithography) 공정에 의해 패터닝(patterning)하여 투명횡전극(5)을 형성하고, 그 상부에 RF 스퍼터링(radio frequency sputtering) 공정으로 제1절연층(6)을 형성하고, 그 위에 적색 및 녹색발광을 하는 형광층(7)을 형성하고, 그 위에 제2절연층(8)을 형성한 후 ITO를 RF 스퍼터링 공정으로 증착하여 투명종전극(9)들을 상기 투명횡전극과 직교하도록 형성하여 구성될 수 있으며, 이와 같이 구성된 전계발광 디스플레이유니트(3)상에 플라즈마방전 디스플레이유니트(4)를 강유전체의 제3절연층(15)을 사이에 두고 중첩배치하여 목적한 바의 전체장치를 구성한다. 상기 플라즈마방전 디스플레이유니트(4)는 후면유리기판(2) 하부에 알루미늄박막을 예컨대 4,000Å 두께로 형성한 후 이를 평판사진공정으로 패터닝하여 알루미늄종전극(13) 패턴을 형성하고 그 사이에 PDP용 청색발광 형광물질(BaMaAl 14023 : Eu2+)로 된 형광층(11)을 프린팅형성하고, 그 하부에 배리어(14)들을 예컨대 1501m 정도의 높이로 형성하여 방전셀(12)들을 형성하고, 그 하부에 투명횡전극(10)을 형성해주는 것으로 구성될 수 있으며, 이를 봉합재를 사용하여 앞서의 전계발광 디스플레이유니트(3)상에 결합시키고 그 방전셀(12)들에 PDP용 발광가스, 예컨대 페닝가스를 주입밀봉하여 장치를 완성한다.In the above, the electroluminescent display unit 3 is coated with tin indium oxide (ITO) on the back surface of the front glass substrate 1 and patterned by the photolithography process to form the transparent transverse electrode 5. And a first insulating layer 6 formed thereon by an RF sputtering process, a fluorescent layer 7 emitting red and green light thereon, and a second insulating layer thereon. 8) after the formation of the ITO by RF sputtering process to form the transparent vertical electrode (9) orthogonal to the transparent transverse electrode, the plasma discharge display on the electroluminescent display unit (3) configured as described above The unit 4 is overlapped with the third insulating layer 15 of the ferroelectric interposed therebetween to constitute the entire device as desired. The plasma discharge display unit 4 forms an aluminum thin film on the lower portion of the rear glass substrate 2 to a thickness of, for example, 4,000 Å and is then patterned by a flat plate photographing process to form an aluminum seed electrode 13 pattern therebetween. Printing and forming a fluorescent layer (11) made of blue light emitting phosphor (BaMaAl 14023: Eu2 + ), and forming the discharge cells 12 by forming barriers 14, for example, about 1501 m in the lower part, It may be configured to form a transparent transverse electrode (10) in the above, it is bonded to the electroluminescent display unit (3) by using a sealing material and the discharge cells 12 for the PDP, for example, penning Inject and seal the gas to complete the device.
이와 같이 구성된 본 발명의 디스플레이장치를 전면유리기판(1)쪽에 배치된 전계발광 디스플레이유니트(3)에 의해 적색 및 녹색발광 얻어지고, 후면유리기판(2)쪽에 배치된 플라즈마방전 디스플레이유니트(4)에 위해서는 필요한 고휘도의 청색발광이 얻어짐으로써 결국 이들의 조합방광에 의해 소망하는바 고화질의 선명한 칼라화상의 표현이 가능하게 된 새롭고 유용한 디스플레이장치인 것이다.The display device of the present invention configured as described above is obtained in red and green light emission by the electroluminescent display unit 3 disposed on the front glass substrate 1 side, and the plasma discharge display unit 4 disposed on the rear glass substrate 2 side. This is a new and useful display device in which high luminance blue light emission, which is required, is finally desired by the combinational radiation of these, which makes it possible to express vivid color images of high quality.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920026443A KR960007994B1 (en) | 1992-12-30 | 1992-12-30 | Electro luminescent display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920026443A KR960007994B1 (en) | 1992-12-30 | 1992-12-30 | Electro luminescent display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940017905A KR940017905A (en) | 1994-07-27 |
| KR960007994B1 true KR960007994B1 (en) | 1996-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920026443A KR960007994B1 (en) | 1992-12-30 | 1992-12-30 | Electro luminescent display device |
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| Country | Link |
|---|---|
| KR (1) | KR960007994B1 (en) |
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1992
- 1992-12-30 KR KR1019920026443A patent/KR960007994B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940017905A (en) | 1994-07-27 |
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