KR19980046311A - Fluorescent projector - Google Patents
Fluorescent projector Download PDFInfo
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- KR19980046311A KR19980046311A KR1019960064634A KR19960064634A KR19980046311A KR 19980046311 A KR19980046311 A KR 19980046311A KR 1019960064634 A KR1019960064634 A KR 1019960064634A KR 19960064634 A KR19960064634 A KR 19960064634A KR 19980046311 A KR19980046311 A KR 19980046311A
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- light
- fluorescent film
- cathode ray
- ray tube
- phosphor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/322—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television with adjacent dots
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Luminescent Compositions (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Projection Apparatus (AREA)
Abstract
상을 형성하여 소정 파장의 빛을 방출하는 음극선관(12)과, 음극선관(12)에서 방출된 빛을 소정의 비율로 확대하여 투사하는 광학계(14)와, 광학계(14)를 통과한 소정 파장의 빛에 의하여 발광하는 형광체가 도포된 형광막(16)으로 구성되는 형광막 프로젝터를 제공한다.A cathode ray tube 12 which forms an image and emits light of a predetermined wavelength, an optical system 14 which enlarges and projects the light emitted from the cathode ray tube 12 at a predetermined ratio, and a predetermined pass through the optical system 14 Provided is a fluorescent film projector including a fluorescent film (16) coated with a phosphor that emits light by wavelengths of light.
음극선관(12)은 발광되는 빛의 파장이 200~420nm 범위인 자외선을 방출하는 것이 바람직하다. 음극선관(12)는 자외선을 방출하는 형광체를 침강법으로 도포하여 사용하며, 전자총의 전자선 주사에 의해서 상이 만들어진다.The cathode ray tube 12 preferably emits ultraviolet rays having a wavelength of 200 to 420 nm. The cathode ray tube 12 is used by applying a phosphor that emits ultraviolet rays by the sedimentation method, and an image is formed by electron beam scanning of an electron gun.
Description
본 발명은 일정한 파장의 빛에 의하여 발광하는 형광체가 도포된 형광막을 사용하여 화질과 휘도 및 시야각을 향상시킨 형광막 프로젝터에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent film projector having improved image quality, brightness, and viewing angle by using a fluorescent film coated with a phosphor that emits light by a constant wavelength of light.
일반적으로 프로젝터(projector)는 화면에 영상을 비추는 장치로서, 적색(R)과 녹색(G)과 청색(B)의 음극선관에서 발사된 빛을 광학계를 통하여 화면에 조사하여 영상을 재현하는 칼라 음극선관 프로젝터와 램(RAM ; random access memory)을 채용한 반사형 강유전성 액정 디스플레이(FLCD ; ferroelectric liquid crystal display) 셔터(shutter)를 사용한 프로젝터 등이 있다.In general, a projector is a device for illuminating an image on a screen. A color cathode ray which reproduces an image by irradiating light emitted from a cathode ray tube of red (R), green (G), and blue (B) to an image through an optical system. And a projector using a reflective ferroelectric liquid crystal display (FLCD) shutter employing a tube projector and a random access memory (RAM).
상기한 종래의 칼라 음극선관 프로젝터는 도 2에 나타낸 바와 같이, 적색(R)과 녹색(G) 및 청색(B)의 음극선관(2)과, 상기한 각각의 음극선관(2)에서 발사된 빛을 소정의 비율로 확대하여 투사하는 광학계(4)와, 상기한 광학계(4)를 통과한 빛이 투과하는 화면(6)으로 구성된다.The conventional color cathode ray tube projector is fired from the cathode ray tube 2 of red (R), green (G) and blue (B), and the respective cathode ray tube (2) as shown in FIG. It consists of an optical system 4 for enlarging and projecting light at a predetermined ratio, and a screen 6 through which the light passing through the optical system 4 is transmitted.
상기와 같이 구성되는 종래의 칼라 음극선관 프로젝터는 눈으로 보는 화면의 화상이 반사상이므로 광시야각이 제한되고 보는 각에 따라서 상이 찌그러지거나 휘도가 떨어진다는 문제가 있다.The conventional color cathode ray tube projector configured as described above has a problem that the wide viewing angle is limited and the image is distorted or the luminance is deteriorated according to the viewing angle because the image of the screen viewed by the eye is a reflection image.
또 종래의 칼라 음극선관 프로젝터는 수동 발광형으로 눈으로 보는 화면의 화상이 색세포가 능동적으로 발광하는 것이 아니고 반사하거나 투과하는 것에 의해 얻어지므로 수동발광으로 인한 화질과 휘도 및 시야각 등의 문제 때문에 40인치 이상의 대형 프로젝터에 사용이 한정되고 소형 프로젝터에는 사용할 수 없다는 문제가 있다.In addition, the conventional color cathode ray tube projector is a passive light emission type, so that the image of the screen seen by the eyes is obtained by reflecting or transmitting color cells instead of actively emitting light. There is a problem that the use is limited to large projectors larger than inches and cannot be used for small projectors.
또 종래의 칼라 음극선관 프로젝터는 3개의 음극선관을 사용하므로 광학계가 복잡하고 부피가 커지며 무게도 무거워진다는 문제가 있다.In addition, since the conventional color cathode ray tube projector uses three cathode ray tubes, there is a problem that the optical system is complicated, bulky, and heavy.
본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로서, 일정한 파장의 빛에 의해 발광하는 형광체를 도포한 형광막을 사용하여 화질과 휘도 및 시야각을 향상시켜 소형 프로젝터에도 사용이 가능한 형광막 프로젝터를 제공하는 것이다.An object of the present invention is to solve the above problems, to provide a fluorescent film projector that can be used in small projectors by improving the image quality, brightness and viewing angle by using a fluorescent film coated with a phosphor that emits light by a certain wavelength. will be.
본 발명 형광막 프로젝터는 상을 형성하여 소정 파장의 빛을 방출하는 음극선관과, 상기한 음극선관에서 방출된 빛을 소정의 비율로 확대하여 투사하는 광학계와, 상기한 광학계를 통과한 소정 파장의 빛에 의하여 발광하는 형광체가 도포된 형광막으로 구성된다.The fluorescent film projector of the present invention comprises a cathode ray tube which forms an image and emits light having a predetermined wavelength, an optical system which enlarges and projects the light emitted from the cathode ray tube at a predetermined ratio, and a predetermined wavelength having passed through the optical system. It is composed of a fluorescent film coated with a phosphor that emits light by light.
상기한 음극선관은 발광되는 빛의 파장이 200~420nm 범위인 것이 바람직하다.In the cathode ray tube, the wavelength of light emitted is preferably in the range of 200 to 420 nm.
도 1은 본 발명에 따른 형광막 프로젝터의 일실시예를 개략적으로 나타내는 사시도.1 is a perspective view schematically showing one embodiment of a fluorescent film projector according to the present invention;
도 2는 종래 칼라 음극선관 프로젝터를 개략적으로 나타내는 사시도.Figure 2 is a perspective view schematically showing a conventional color cathode ray tube projector.
다음으로 본 발명에 따른 형광막 프로젝터의 가장 바람직한 실시예를 도면을 참조하여 상세하게 설명한다.Next, the most preferred embodiment of the fluorescent film projector according to the present invention will be described in detail with reference to the drawings.
먼저 도 1에 나타낸 바와 같이, 본 발명에 따른 형광막 프로젝터의 일실시예는 상을 형성하여 소정 파장의 빛을 방출하는 음극선관(12)과, 상기한 음극선관(12)에서 방출된 빛을 소정의 비율로 확대하여 투사하는 광학계(14)와, 상기한 광학계(14)를 통과한 소정 파장의 빛에 의하여 발광하는 형광체가 도포된 형광막(16)으로 구성된다.First, as shown in FIG. 1, one embodiment of the fluorescent membrane projector according to the present invention forms a image and emits light of a predetermined wavelength, and the light emitted from the cathode ray tube 12 described above. An optical system 14 for magnifying and projecting at a predetermined ratio and a fluorescent film 16 coated with a phosphor that emits light by light of a predetermined wavelength passing through the optical system 14.
상기한 음극선관(12)은 발광되는 빛의 파장이 200~420nm 범위인 자외선을 방출하는 것이 바람직하다. 즉 상기한 음극선관(12)은 상기한 형광막(16)에 도포된 형광체를 여기시킬 정도의 파장을 갖는 빛 즉 자외선을 방출하도록 구성된다. 또 상기한 음극선관(12)에는 방출하는 불필요한 파장의 빛을 제거하고 필요한 파장의 빛만을 뽑아내기 위하여 색유리(color glass)나 필터(filter)를 설치하여 사용한다.The cathode ray tube 12 preferably emits ultraviolet light having a wavelength of 200 to 420 nm. That is, the cathode ray tube 12 is configured to emit light, that is, ultraviolet rays, having a wavelength sufficient to excite the phosphor coated on the fluorescent film 16. In addition, the cathode ray tube 12 is used by installing a color glass (filter) or filter (filter) to remove the light of the unnecessary wavelength emitted and to extract only the light of the required wavelength.
상기에서 색유리를 납유리에 코발트(Co), 니켈(Ni), 철(Fe) 등을 첨가하는 것에 의하여 가시광 부문을 제거할 수 있다. 또 필터는 가시광 부문과 불필요한 단파장 자외선 부문을 제거할 수 있는 대역필터(band pass filter)나 컷오프 필터(cutoff filter)를 사용하는 것이 바람직하다.In the above, the visible light section may be removed by adding cobalt (Co), nickel (Ni), iron (Fe), etc. to the lead glass. In addition, it is preferable to use a band pass filter or a cutoff filter, which can remove visible light and unnecessary short wavelength ultraviolet light.
상기한 음극선관(12)은 종래 음극선관(2)의 구조와 동일하고 단지 적색(R)과 녹색(G) 및 청색(B)의 형광체 대신에 자외선을 방출하는 형광체를 침강법으로 도포하여 사용하며, 전자총의 전자선 주사에 의해서 상이 만들어진다.The cathode ray tube 12 is the same as the structure of the conventional cathode ray tube 2, and instead of the red (R), green (G), and blue (B) phosphors, phosphors emitting ultraviolet rays are applied by sedimentation. The image is made by electron beam scanning of the electron gun.
상기한 음극선관(13)에 사용되는 자외선을 방출하는 형광체로는 Y2SiO5: Ce(400nm), Y2Si2O7: Ce(385nm), HfO2: Ti(400nm), Zn2SiO2: Ti(400nm), ZnGa2O4: (Li, Ti)(380nm), SrMgP2O7: Eu(394nm), Y2O3: Gd(315nm), CaS : Pb(370nm), Ca2MgSi2O7: Pb(349nm), Sr2MgSi2O7: Pb(326nm), Ba2MgSi2O7: Pb(376nm, 322nm), Ca2ZnSi2O7: Pb(347nm), Sr2ZnSi2O7: Pb(326nm), Ba2ZnSi2O7: Pb(328nm), BaSi2O5: Pb(349nm), CaSiO3: Pb(α-379nm, β-337nm), Ca2SiO4: Pb(β-325nm), SrSiO4: Pb(320nm), Ba2SiO4: Pb(268nm), BaSi2O7: Pb, Ca2P2O7: Sn(β-369nm), Sr3P2O8: Sn(α-394nm, 345nm), YPO4: Ce(330nm, 365nm), GdPO4: Ce(320nm, 344nm), LaPO4: Ce(317nm, 339nm), LaBO3: Ce(317nm, 352nm, 376nm), ScBO3: Ce(328nm, 373nm), YAl2B4O12: Ce(344nm, 368nm), Ca2MgSi2O7: Ce(370nm, 400nm), Sc2Si2O7: Ce(337nm, 405nm), SrAl12O19: Eu(395nm)등이 바람직하다.Examples of the phosphor emitting ultraviolet rays used in the cathode ray tube 13 include Y 2 SiO 5 : Ce (400 nm), Y 2 Si 2 O 7 : Ce (385 nm), HfO 2 : Ti (400 nm), Zn 2 SiO 2 : Ti (400 nm), ZnGa 2 O 4 : (Li, Ti) (380 nm), SrMgP 2 O 7 : Eu (394 nm), Y 2 O 3 : Gd (315 nm), CaS: Pb (370 nm), Ca 2 MgSi 2 O 7 : Pb (349 nm), Sr 2 MgSi 2 O 7 : Pb (326 nm), Ba 2 MgSi 2 O 7 : Pb (376 nm, 322 nm), Ca 2 ZnSi 2 O 7 : Pb (347 nm), Sr 2 ZnSi 2 O 7 : Pb (326 nm), Ba 2 ZnSi 2 O 7 : Pb (328 nm), BaSi 2 O 5 : Pb (349 nm), CaSiO 3 : Pb (α-379 nm, β-337 nm), Ca 2 SiO 4 : Pb (β-325nm), SrSiO 4 : Pb (320nm), Ba 2 SiO 4 : Pb (268nm), BaSi 2 O 7 : Pb, Ca 2 P 2 O 7 : Sn (β-369nm), Sr 3 P 2 O 8 : Sn (α-394 nm, 345 nm), YPO 4 : Ce (330 nm, 365 nm), GdPO 4 : Ce (320 nm, 344 nm), LaPO 4 : Ce (317 nm, 339 nm), LaBO 3 : Ce (317 nm, 352 nm, 376 nm), ScBO 3 : Ce (328 nm, 373 nm), YAl 2 B 4 O 12 : Ce (344 nm, 368 nm), Ca 2 MgSi 2 O 7 : Ce (370 nm, 400 nm), Sc 2 Si 2 O 7 : Ce (337 nm, 405 nm), SrAl 12 O 19 : Eu (395 nm) and the like are preferable.
상기한 광학계(14)는 상용화된 렌즈계로서 자외선에 적합하고 화면의 크기와 상기한 음극선관(12)의 크기에 따라서 결정한다.The optical system 14 is a commercially available lens system that is suitable for ultraviolet rays and is determined according to the size of the screen and the size of the cathode ray tube 12 described above.
상기한 광학계(14)는 상기한 음극선관(12)에서 방출되어 형성된 상의 빛을 상기한 형광막(16) 각각의 화소에 정확하게 맺히도록 조절할 수 있게 형성하는 것이 바람직하다.The optical system 14 is preferably formed so that the light emitted from the cathode ray tube 12 can be formed to be precisely formed on each pixel of the fluorescent film 16.
상기한 형광막(16)은 음극선관이나 플라즈마 디스플레이 패널(PDP ; plasma display panel)에서 형광막을 형성할 때에 사용하는 사진석판법이나 슬러리의 스핀코팅법 또는 인쇄법을 사용하여 형성할 수 있다.The fluorescent film 16 may be formed using a photolithography method, a spin coating method of a slurry, or a printing method used to form a fluorescent film in a cathode ray tube or a plasma display panel (PDP).
즉 먼저 유리기판을 깨끗하게 세정하고, 폴리비닐 알코올과 중 크롬산 나트륨과 프로필렌 옥사이드 및 에틸렌 옥사이드 중합체와 아크릴 에멀젼과 물(순수)등으로 이루어진 감광성 수지를 유리기판 안쪽면에 도포하여 건조시키고 현상하여 감광성 수지 패턴을 형성한다. 상기와 같이 형성된 감광성 수지 패턴위에 흑연을 도포하고 과산화수소를 이용하여 에칭하는 것에 의하여 감광성 수지를 제거하고 외부광을 차단하고 색혼합을 방지하기 위한 블랙 매트릭스층을 일정한 패턴으로 형성한다. 이어서 블랙 매트릭스층 위에 제1형광체 입자와 물(순수) 및 폴리비닐 알코올을 포함하는 제 1 형광체 슬러리를 도포하고 건조, 노광, 현상, 세정 및 건조 등의 공정을 거쳐 제 1 형광체층을 형성하고, 마찬가지의 방법으로 제 2 형광체층과 제 3 형광체층을 형성하여 형광막(16)을 제조한다.In other words, the glass substrate is first cleaned, and then a photosensitive resin composed of polyvinyl alcohol, sodium bichromate, propylene oxide, an ethylene oxide polymer, an acrylic emulsion, water (pure), etc. is applied to the inner surface of the glass substrate, dried, developed, and the photosensitive resin. Form a pattern. By coating graphite on the photosensitive resin pattern formed as described above and etching with hydrogen peroxide, a black matrix layer is formed in a predetermined pattern to remove the photosensitive resin, block external light, and prevent color mixing. Subsequently, a first phosphor slurry containing the first phosphor particles, water (pure water), and polyvinyl alcohol is coated on the black matrix layer, and the first phosphor layer is formed by drying, exposure, developing, washing, and drying, In the same manner, the second phosphor layer and the third phosphor layer are formed to manufacture the phosphor film 16.
상기에서 사용되는 형광체는 화면의 크기나 광원의 종류에 따른 스펙트럼 분포에 따라 가장 효율이 좋은 적색(R)과 녹색(G) 및 청색(B) 형광체를 선정한다.The phosphors used above select the most efficient red (R), green (G) and blue (B) phosphors according to the spectral distribution according to the size of the screen or the type of light source.
일반적으로 자외선 특히 파장이 200~420nm범위의 빛에 의하여 발광하는 여러 가지 형광체를 예를 들면 다음과 같다.In general, for example, various phosphors that emit light by ultraviolet rays, especially wavelengths ranging from 200 to 420 nm, are as follows.
적색(R) 형광체 ; Y2O2S : Eu3+, La2O2S : Eu3+, Y2O3: Eu3+, 3.5MgO·0.5MgF2·GeO2: Mn4+, YVO4: Eu3+, SrY2S4: Eu2+, K5Eu(WO4)4 Red (R) phosphors; Y 2 O 2 S: Eu 3+ , La 2 O 2 S: Eu 3+, Y 2 O 3: Eu 3+, 3.5MgO · 0.5MgF 2 · GeO 2: Mn 4+, YVO 4: Eu 3+, SrY 2 S 4 : Eu 2+ , K 5 Eu (WO 4 ) 4
녹색(G) 형광체 ; SrAl2O4: Eu2+, SrGa2S4: Eu2+, Y3Al5O12: Ce3+, ZnS : Cu, ZnS : (Cu, Al), ZnS : (Cu, Al, Au), Zn2GeO4: Mn2+, (Ca, Mg, Sr)3MgSi2O8: Eu2+, (Ca, Mg, Sr)SiO4: Eu2+, La2O2S : Tb3+, Y2O2S : Tb3+ Green (G) phosphors; SrAl 2 O 4: Eu 2+, SrGa 2 S 4: Eu 2+, Y 3 Al 5 O 12: Ce 3+, ZnS: Cu, ZnS: (Cu, Al), ZnS: (Cu, Al, Au) , Zn 2 GeO 4 : Mn 2+ , (Ca, Mg, Sr) 3 MgSi 2 O 8 : Eu 2+ , (Ca, Mg, Sr) SiO 4 : Eu 2+ , La 2 O 2 S: Tb 3+ , Y 2 O 2 S: Tb 3+
청색(B) 형광체 ; Sr10(PO4)6Cl2: Eu2+, (Sr0.9Ca0.1)10(PO4)6Cl2: Eu2+, BaMg2Al16O27: Eu2+, Sr3MgSi2O8: Eu2+, Ba3MgSi2O8: Eu2+, ZnS : (Ag, Cl), ZnS : (Ag, Al), Zns : (Ag, Ga)Blue (B) phosphors; Sr 10 (PO 4 ) 6 Cl 2 : Eu 2+ , (Sr 0.9 Ca 0.1 ) 10 (PO 4 ) 6 Cl 2 : Eu 2+ , BaMg 2 Al 16 O 27 : Eu 2+ , Sr 3 MgSi 2 O 8 : Eu 2+ , Ba 3 MgSi 2 O 8 : Eu 2+ , ZnS: (Ag, Cl), ZnS: (Ag, Al), Zns: (Ag, Ga)
상기와 같이 이루어지는 본 발명 형광막 프로젝터는 오직 한영역의 파장을 갖는 빛 예를 들면 자외선이 상기한 음극선관(12)에서 방출되어 상기한 광학계(14)에서 증폭되어 상기한 형광막(16)에 도포된 각각의 형광체를 발광시키는 것에 의해 상이 재현되는 능동 발광형 표시장치이다.In the fluorescent film projector of the present invention made as described above, light having a wavelength of only one region, for example, ultraviolet light is emitted from the cathode ray tube 12 and amplified by the optical system 14 to the fluorescent film 16. An active light emitting display device in which an image is reproduced by causing each of the applied phosphors to emit light.
상기에서 광학계(14)인 렌즈계를 조절하는 것에 의하여 반사면에 보내진 상이 상기한 형광막(16)의 화소를 정확히 일치시키는 것에 의하여 소정의 영상이 재현된다.By adjusting the lens system, which is the optical system 14, a predetermined image is reproduced by matching the pixels of the fluorescent film 16 with the image sent to the reflecting surface exactly.
상기에서 색혼합을 방지하기 위하여 상기한 광학계(14)의 설계값을 조절하여 형광막(16) 화소 크기의 90~95%만을 여기시키도록 하는 것이 바람직하다.In order to prevent color mixing, it is preferable to adjust only the designed value of the optical system 14 to excite only 90 to 95% of the pixel size of the fluorescent film 16.
또 색혼합을 방지하기 위하여 상기한 형광막(16)과 광학계 사이에 자외선에 강하고 가시광을 흡수하는 재료(예를 들면 철 등의 금속판, 색플라스틱 등)로 이루어지고 소정의 패턴으로 광통과 구멍이 형성된 마스크를 삽입하는 것도 가능하다.In order to prevent color mixing, the fluorescent film 16 and the optical system are made of a material that is resistant to ultraviolet rays and absorbs visible light (for example, a metal plate such as iron, color plastic, etc.), and has light through holes in a predetermined pattern. It is also possible to insert the formed mask.
상기에서는 본 발명의 바람직한 실시예에 대하여 설명하였지만, 본 발명은 이에 한정되는 것이 아니고 특허 청구의 범위와 발명의 상세한 설명 및 첨부한 도면의 범위 안에서 여러 가지로 변형하여 실시하는 것이 가능하고 이 또한 본 발명의 범위에 속하는 것은 당연하다.Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.
상기와 같이 이루어지는 본 발명의 형광막 프로젝터에 의하면, 형광막의 사용으로 반사형 디스플레이의 시야각과 화상 및 휘도 등을 음극선관 수준으로 향상시킬 수 있고, 형광체를 조절하는 것에 의해 색순도를 조절하여 색의 재현범위를 넓힐 수 있으며, 휴대용 컴퓨터 등의 소형 표시장치에도 적용하는 것이 가능하다.According to the fluorescent film projector of the present invention made as described above, the use of the fluorescent film can improve the viewing angle, image and brightness of the reflective display to the level of the cathode ray tube, and by adjusting the phosphor, color reproduction is controlled to reproduce colors. It is possible to extend the range and to apply to small display devices such as portable computers.
또 형광막을 사용하므로 광학계와 음극선관을 단순화시킬 수 있으므로 부피와 무게를 줄일 수 있고 생산성이 향상된다.In addition, the use of a fluorescent film can simplify the optical system and the cathode ray tube, thereby reducing volume and weight, and improving productivity.
Claims (8)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064634A KR19980046311A (en) | 1996-12-12 | 1996-12-12 | Fluorescent projector |
| DE19722404A DE19722404A1 (en) | 1996-12-12 | 1997-05-28 | Colour CRT projection system |
| CN97113891A CN1185081A (en) | 1996-12-12 | 1997-07-08 | Projection system with fluroescent screen |
| JP9199053A JPH10172459A (en) | 1996-12-12 | 1997-07-25 | Projector system |
| MXPA/A/1997/005794A MXPA97005794A (en) | 1996-12-12 | 1997-07-30 | Projection system with fluoresce screen |
| BR9703931A BR9703931A (en) | 1996-12-12 | 1997-08-12 | Projection system with fluorescent screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960064634A KR19980046311A (en) | 1996-12-12 | 1996-12-12 | Fluorescent projector |
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| Publication Number | Publication Date |
|---|---|
| KR19980046311A true KR19980046311A (en) | 1998-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960064634A Ceased KR19980046311A (en) | 1996-12-12 | 1996-12-12 | Fluorescent projector |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH10172459A (en) |
| KR (1) | KR19980046311A (en) |
| CN (1) | CN1185081A (en) |
| BR (1) | BR9703931A (en) |
| DE (1) | DE19722404A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030048562A (en) * | 2001-12-12 | 2003-06-25 | 삼성전자주식회사 | Apparatus for projection image |
| KR100511562B1 (en) * | 2003-01-29 | 2005-09-02 | 한국화학연구원 | Composition and Preparation method of yellow silicates phosphor for white LED and AM LCD |
| KR100637118B1 (en) * | 2000-03-27 | 2006-10-20 | 삼성에스디아이 주식회사 | Display device with ultraviolet light emitting phosphor |
| US7507354B2 (en) | 2004-04-27 | 2009-03-24 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| CN102193296A (en) * | 2010-03-18 | 2011-09-21 | 精工爱普生株式会社 | Illumination device and projector |
| KR101107104B1 (en) * | 2009-11-26 | 2012-01-31 | 삼성에스디아이 주식회사 | Green phosphor for plasma display panel and plasma display panel comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002523551A (en) * | 1998-08-25 | 2002-07-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Light-emitting material coating method |
| US6429583B1 (en) * | 1998-11-30 | 2002-08-06 | General Electric Company | Light emitting device with ba2mgsi2o7:eu2+, ba2sio4:eu2+, or (srxcay ba1-x-y)(a1zga1-z)2sr:eu2+phosphors |
| JP3421736B2 (en) * | 1999-03-04 | 2003-06-30 | 独立行政法人産業技術総合研究所 | Light emission method by mechanical external force |
| KR20000067178A (en) * | 1999-04-24 | 2000-11-15 | 김순택 | Projector |
| JP3273317B2 (en) * | 1999-08-25 | 2002-04-08 | 独立行政法人産業技術総合研究所 | Stress-stimulated luminescent material and method of manufacturing the same |
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| TWI290329B (en) | 2001-10-30 | 2007-11-21 | Hitachi Ltd | Plasma display device, luminescent device and image and information display system using the same |
| CN100375776C (en) * | 2003-05-17 | 2008-03-19 | 磷技术有限公司 | light emitting device containing silicate fluorescent phosphor |
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| US7959302B2 (en) * | 2006-03-28 | 2011-06-14 | Seiko Epson Corporation | Display device and game machine |
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-
1996
- 1996-12-12 KR KR1019960064634A patent/KR19980046311A/en not_active Ceased
-
1997
- 1997-05-28 DE DE19722404A patent/DE19722404A1/en not_active Withdrawn
- 1997-07-08 CN CN97113891A patent/CN1185081A/en active Pending
- 1997-07-25 JP JP9199053A patent/JPH10172459A/en active Pending
- 1997-08-12 BR BR9703931A patent/BR9703931A/en not_active Application Discontinuation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100637118B1 (en) * | 2000-03-27 | 2006-10-20 | 삼성에스디아이 주식회사 | Display device with ultraviolet light emitting phosphor |
| KR20030048562A (en) * | 2001-12-12 | 2003-06-25 | 삼성전자주식회사 | Apparatus for projection image |
| KR100511562B1 (en) * | 2003-01-29 | 2005-09-02 | 한국화학연구원 | Composition and Preparation method of yellow silicates phosphor for white LED and AM LCD |
| US7507354B2 (en) | 2004-04-27 | 2009-03-24 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| US7615797B2 (en) | 2004-04-27 | 2009-11-10 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| US7892453B2 (en) | 2004-04-27 | 2011-02-22 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| US8221649B2 (en) | 2004-04-27 | 2012-07-17 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| US8226853B2 (en) | 2004-04-27 | 2012-07-24 | Panasonic Corporation | Phosphor composition and method for producing the same, and light-emitting device using the same |
| KR101107104B1 (en) * | 2009-11-26 | 2012-01-31 | 삼성에스디아이 주식회사 | Green phosphor for plasma display panel and plasma display panel comprising same |
| CN102193296A (en) * | 2010-03-18 | 2011-09-21 | 精工爱普生株式会社 | Illumination device and projector |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9703931A (en) | 1998-11-03 |
| JPH10172459A (en) | 1998-06-26 |
| CN1185081A (en) | 1998-06-17 |
| DE19722404A1 (en) | 1998-06-18 |
| MX9705794A (en) | 1998-06-28 |
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