KR100241469B1 - Dyed glass type tn-lcd panel and projector with this - Google Patents
Dyed glass type tn-lcd panel and projector with this Download PDFInfo
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- KR100241469B1 KR100241469B1 KR1019920007665A KR920007665A KR100241469B1 KR 100241469 B1 KR100241469 B1 KR 100241469B1 KR 1019920007665 A KR1019920007665 A KR 1019920007665A KR 920007665 A KR920007665 A KR 920007665A KR 100241469 B1 KR100241469 B1 KR 100241469B1
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- G—PHYSICS
- G02—OPTICS
- 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
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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Abstract
본 발명은 착색유리를 이용한 TN-LCD 패널에 관한 것으로, TN-LCD 패널의 상,하측 유리판 중 어느 하나의 유리판을 착색유리(17)로 구성된 착색유리형 TN-LCD 패널을 제공하고, 하나의 백색광원(6)과, 집광을 목적으로 하는 집광렌즈(7)과, 녹색광 제어를 위한 녹색 착색유리형 TN-LCD 라이트 밸브(18)와, 적색광을 제어하기 위한 적색 착색유리형 TN-LCD 라이트 밸브(19)와, 청색광을 제어하기 위한 청색 착색유리형 TN-LCD 라이트 밸브(20)와, 삼색광을 조합하기 위한 다이크로닉 프로즘(11)과, 조합된 광을 영상을 표현하는 스크린(13)에 투사하기 위한 프로젝션 렌즈(12)로 구성되는 착색유리를 이용한 TN-LCD 프로젝터를 제공한다. 이러한 본 발명은 광학계를 간략화하여 용이하게 제조할 수 있으며, 제품의 생산원가를 절감할 수 있다. 그리고, 3개의 광원을 사용하는 경우에는 1/3 광량의 램프를 사용할 수 있어 램프의 수명 및 발열량을 줄일 수 있고, 그 결과로서 액정 패널의 수명 또는 연장할 수 있으며, 종래의 광량을 가진 램프를 사용할 경우 높은 콘트라스트(high contrast)와 높은 휘도(high brightness)를 실현할 수 있다.The present invention relates to a TN-LCD panel using colored glass, and provides a colored glass-type TN-LCD panel composed of colored glass (17) of any one of the upper and lower glass plates of the TN-LCD panel. A white light source 6, a condenser lens 7 for condensing, a green tinted glass TN-LCD light valve 18 for green light control, and a red tinted glass TN-LCD light for controlling red light A screen displaying an image of the valve 19, a blue tinted glass type TN-LCD light valve 20 for controlling blue light, a dichronic prism 11 for combining tricolor light, and the combined light. Provided is a TN-LCD projector using colored glass composed of a projection lens 12 for projecting onto 13. The present invention can be easily manufactured by simplifying the optical system, it is possible to reduce the production cost of the product. In the case of using three light sources, it is possible to use a lamp having a 1/3 light amount, thereby reducing the lifespan and calorific value of the lamp, and as a result, it is possible to extend or extend the lifespan of the liquid crystal panel. When used, high contrast and high brightness can be achieved.
Description
제1도는 종래 TN-LCD 패널의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a conventional TN-LCD panel.
제2도는 종래 TN-LCD 프로젝터의 구성을 보인 단면도.2 is a cross-sectional view showing the configuration of a conventional TN-LCD projector.
제3도는 종래 TN-LCD 패널의 동작 설명도.3 is an operation explanatory diagram of a conventional TN-LCD panel.
제4도 및 제5도는 본 발명에 의한 착색유리형 TN-LCD 패널의 구성을 보인 단면도.4 and 5 are cross-sectional views showing the configuration of the colored glass TN-LCD panel according to the present invention.
제6도는 본 발명에 의한 착색유리형 TN-LCD 프로젝터의 구성도.6 is a block diagram of a colored glass TN-LCD projector according to the present invention.
제7(a)(b)도는 본 발명에 의한 착색유리형 TN-LCD 패널의 작용설명도.Figure 7 (a) (b) is a diagram illustrating the operation of the colored glass TN-LCD panel according to the present invention.
제8도와 제9도는 본 발명에 의한 착색유리형 TN-LCD 프로젝터의 각각 다른 실시예를 보인 구성도.8 and 9 are diagrams showing different embodiments of the colored glass TN-LCD projector according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
7 : 집광렌즈 11 : 다이크로닉 프리즘7: condenser lens 11: dichroic prism
12 : 프로젝션 렌즈 13 : 스크린12: projection lens 13: screen
17 : 착색유리17: tinted glass
18 : 녹색 착색유리형 TN-LCD 라이트 밸브18: green tinted glass TN-LCD light valve
19 : 적색 착색유리형 TN-LCD 라이트 밸브19: TN-LCD Red Light Valve
19 : 청색 착색유리형 TN-LCD 라이트 밸브19: blue tinted glass TN-LCD light valve
23 : 미러 24 : 인라인형 프로젝션 렌즈23: mirror 24: inline projection lens
27,28 : 백색광원27,28: white light source
본 발명은 프로젝션 텔레비젼 수상기 등에 이용되는 트위스트 네마틱 액정(TN-LCD) 패널과 프로젝터(PROJECTOR)에 관한 것으로, 특히 TN-LCD 패널에 색상을 부여하여 TN-LCD 프로젝터의 광학계를 간단화하도록 한 착색유리형(dyed glass type) TN-LCD 패널과 그 패널을 이용한 프로젝터에 관한 것이다.The present invention relates to a twisted nematic liquid crystal (TN-LCD) panel and a projector (PROJECTOR) used in a projection television receiver, and the like, and in particular, coloring to simplify the optical system of the TN-LCD projector by giving a color to the TN-LCD panel. The present invention relates to a glass type TN-LCD panel and a projector using the panel.
종래 TN-LCD 패널은 제1도에 도시한 바와같이, 인가된 전압신호에 따라 변위하는 액정분자가 삽입된 트위스트 네마틱 액정층(TN-LC layer)(1)과, 그 트위스트 네마틱 액정층(1)에 전압을 인가하기 위한 공통 전극(common eletrde)(4)과, 액티브 어레이 전극(active arrayelectrod)(4’) 및 입사광을 편광화하고 편광의 방향에 따라 광의 투과를 제어하는 상,하 편광판(polarizer)(2)(3)과, 상,하측 유리판(5)(5)으로 구성되어 있다.In the conventional TN-LCD panel, as shown in FIG. 1, a twisted nematic liquid crystal layer (TN-LC layer) 1 into which liquid crystal molecules are displaced according to an applied voltage signal, and a twisted nematic liquid crystal layer thereof A common electrode 4 for applying a voltage to (1), an active array electrode 4 ', and an upper and lower polarization polarizing the incident light and controlling the transmission of light in accordance with the direction of polarization. It consists of a polarizer 2 (3) and the upper and lower glass plates 5 and 5, respectively.
제2도는 종래 TN-LCD 패널을 이용한 TN-LCD 프로젝터를 보인 것으로 이에 도시한 바와같이, 메탈 할라이드 램프(metal halide lamp)와 같은 백색광원(6)과, 집광을 목적으로 하는 집광렌즈(condenser lens)(7), 백색광으로부터 삼원색광(적색, 녹색, 청색)을 분리하는 다이크로닉 미러(dichronic mirror)(8), 광의 투과정도를 제어하는 TN-LCD 라이트 밸브(10r,10g,10b), TN-LCD 라이트 밸브(10r,10g,10b)에 삼원광을 전달하는 릴레이 렌즈 시스템(relay lens system)(9), 투과 제어된 삼원광을 조합하는 다이크로닉(dichronic prisim) 프리즘(11) 및 영상을 표현하는 스크린(13), 광을 스크린(13)에 투과하기 위한 프로젝션 렌즈(projection lens)(12)로 구성되어 있다.FIG. 2 shows a TN-LCD projector using a conventional TN-LCD panel. As shown in the drawing, a white light source 6 such as a metal halide lamp and a condenser lens for condensing are shown in FIG. (7), a dichronic mirror (8) that separates the three primary colors (red, green, blue) from white light, TN-LCD light valves (10r, 10g, 10b) that control the transmission of light, A relay lens system 9 for transmitting three-way light to the TN-LCD light valves 10r, 10g, 10b, a dichronic prisim prism 11 that combines transmission-controlled three-way light, and It is composed of a screen 13 representing an image and a projection lens 12 for transmitting light to the screen 13.
상기 TN-LCD 패널은 전극에 인가된 전압에 따라 제3도와 같이, 백 라이트(14)의 광을 차단하여 다크(dark)(16) 또는 편광된 백색광(15)으로 제어하며 종래의 TN-LCD 패널을 사용한 TN-LCD 프로젝터는 메탈 할라이드 램프(6)로부터 집광렌즈(7)에 의해 집광되어진 광은 다이트로닉 미러(8)에 의해 삼원광으로 분리되고 각각의 광은 각각의 광경로를 가진 릴레이 렌즈 시스템(9)을 통해 각각의 TN-LCD 라이트 밸브(10r,10g,10b)에 전달되어지며, 삼원광은 TN-LCD 라이트 밸브(10r,10g,10b)에 의해 각각 투과 정도가 제어된 광으로 변한 뒤 다이크로닉 프리즘(11)에 의해 하나의 색깔을 가진 광으로 조합되고 프로젝션 렌즈(12)에 의해 스크린(13)에 투사되는 데, 이때 TN-LCD 라이트 밸브(10r,10g,10b)에 인가된 영상신호에 따라 스크린(13)에 영상을 표현하게 되는 것이다.The TN-LCD panel blocks the light of the backlight 14 according to the voltage applied to the electrode and controls the dark 16 or the polarized white light 15 as shown in FIG. In the TN-LCD projector using the panel, the light collected by the condenser lens 7 from the metal halide lamp 6 is separated into three-way light by the ditronic mirror 8, and each light is a relay having a respective light path. Light is transmitted to each TN-LCD light valve 10r, 10g, 10b through the lens system 9, and the three-way light is controlled by the TN-LCD light valves 10r, 10g, 10b. And then combined into one colored light by the dichroic prism 11 and projected onto the screen 13 by the projection lens 12, wherein the TN-LCD light valves 10r, 10g, 10b The image is expressed on the screen 13 according to the video signal applied to the screen.
그러나 상기한 바와같은 종래의 TN-LCD 프로젝터에 적용된 TN-LCD 라이트 밸브는 투과도 제어 특성만을 가짐으로서 색상 구현을 위한 광학계가 복잡하고 이에 따라 제조공정이 비효율적이며, 제작원가가 증가되는 결함이 있었다.However, the TN-LCD light valve applied to the conventional TN-LCD projector as described above has only a transmittance control characteristic, so that the optical system for color realization is complicated, and thus, the manufacturing process is inefficient and manufacturing cost increases.
본 발명은 상기한 바와같은 종래의 결함을 해소하기 위하여 창안한 것으로, TN-LCD 패널의 상,하측 유리판 중 어느 하나의 유리판을 착색유리로 구성한 착색유리형TN-LCD 패널을 제공하고, 그 착색유리형 TN-LCD 패널을 이용하여 색상 구현을 위한 광학계가 간단화되는 프로젝터를 제공하기 위한 것인바, 이하 이러한 본 발명을 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention has been made to solve the above-mentioned conventional defects, and provides a colored glass-type TN-LCD panel in which any one of the upper and lower glass plates of the TN-LCD panel is made of colored glass, and the coloring thereof. It is to provide a projector that the optical system for the color implementation is simplified by using a glass-type TN-LCD panel, described in detail below with reference to the accompanying drawings.
제4도 및 제5도는 본 발명에 의한 착색유리형 TN-LCD 패널의 구성을 보인 것으로, 이에 도시한 바와같이 트위스트 네마틱 액정층(TN-LC layer)(1)과, 그 트위스트 네마틱 액정층(1)에 전압을 인가하기 위한 공통 전극(common eletrode)(4)과, 액티브 어레이 전극(active array electrod)(4’) 및 입사광을 편광화하고 편광의 방향에 따라 광의 투과를 제어하는 상,하 편광판(polarizer)(2)(3)과 상,하측 유리판으로 구성되며, 이들 상,하유리판 중 어느 하나의 유리판을 착색유리판(17)으로 구성하고, 다른 하나는 유리판(5)으로 구성한 것을 특징으로 하고 있다.4 and 5 show the structure of the colored glass-type TN-LCD panel according to the present invention. As shown therein, a twisted nematic liquid crystal layer (TN-LC layer) 1 and its twisted nematic liquid crystal A common electrode 4 for applying a voltage to the layer 1, an active array electrode 4 'and an image for polarizing incident light and controlling the transmission of light according to the direction of polarization. It consists of a lower polarizer (2) (3) and the upper and lower glass plates, one of these upper and lower glass plates is composed of a colored glass plate 17, the other is composed of a glass plate (5) It is characterized by.
제4도는 상측부가 착색유리판(17)으로 되고 하측부는 통상의 유리판(5)으로 구성된 경우를 보인 것이며, 제5도는 상측부는 통상의 유리판(5)으로 되고, 하측부가 착색유리판(17)로 구성된 것을 보인 것이다.4 shows the case where the upper part is made of colored glass plate 17 and the lower part is made of ordinary glass plate 5, and the upper part is made of ordinary glass plate 5, and the lower part is made of colored glass plate 17. It is shown.
제6도는 상기한 착색유리형 TN-LCD 패널을 이용한 착색유리형 TN-LCD 프로젝터를 보인 단면도로서, 이에 도시한 바와같이, 메탈 할라이드 램프(metal halide lamp)와 같은 다수 개(3개)의 백색광원(6)과, 각 백색광원(6)의 광을 집광하는 다수 개(3개)의 집광렌즈(condenser lens)(7), 상기 각 집광렌즈(7)에서 집광된 백색광으로부터 각각 녹색광 제어를 위한 녹색 착색유리형 TN-LCD 라이트 밸브(18), 적색광을 제어하기 위한 적색 착색유리형 TN-LCD 라이트 밸브(19), 청색광을 제어하기 위한 청색 착색유리형 TN-LCD 라이트 밸브(20), 삼색광을 조합하기 위한 다이크로닉 프리즘(dichronic prism)(11)과, 조합된 광을 영상을 표현하는 스크린(13)에 투사하기 위한 프로젝션 렌즈(projection lens)(12)로 구성되어 있다.FIG. 6 is a cross-sectional view showing a colored glass TN-LCD projector using the colored glass TN-LCD panel described above, and as shown therein, a plurality of (3) white lights, such as a metal halide lamp. Green light control is performed from a circle 6, a plurality of condenser lenses 7 for condensing light from each of the white light sources 6, and the white light condensed from the condenser lenses 7, respectively. Green colored TN-LCD light valve 18 for controlling green color, red colored TN-LCD light valve 19 for controlling red light, blue colored TN-LCD light valve 20 for controlling blue light, It consists of a dichroic prism 11 for combining tricolor light and a projection lens 12 for projecting the combined light onto a screen 13 representing an image.
본 발명에 의한 착색유리형 TN-LCD 패널은 제7도에 도시한 바와같이, 착색유리형 TN-LCD 패널에 인가되는 전압에 따라 백색광인 백 라이트(back light)(14) 광이 차단되어 다크(dark)(16)로 되거나 상판 및 하판에 착색된 색상에 따라 색깔을 띤 편광상태의 착색광(21)이 되어 전압정도에 따라 다크(16)에서 가장 밝은 착색광으로 변화한다.In the colored glass TN-LCD panel according to the present invention, as shown in FIG. 7, the light of the back light 14, which is white light, is blocked according to the voltage applied to the colored glass TN-LCD panel and is dark. It becomes (dark) 16 or becomes the colored light 21 of the polarization state colored according to the color colored on the upper board and the lower board, and changes from the dark 16 to the brightest colored light according to the voltage degree.
그리고, 제6도의 착색유리형TN-LCD 프로젝터는 각각의 메탈 할라이드 램프(6)로부터 발산되어 집광렌즈(7)에 의해 집광된 광은 각각 청색, 녹색 및 적색으로 착색된 유리를 이용한 착색유리형 TN-LCD 라이트 밸브(18,19,20)에 의해 투과정도 및 색특성이 제어되고 다이크로닉 프리즘(11)에 의해 한 색의 광으로 조합되어지며, 프로젝션 렌즈(12)에 의해 조합되어진 빛은 스크린(13)에 투사되어 영상을 표현한다.In addition, the colored glass TN-LCD projector of FIG. 6 emits light from each metal halide lamp 6, and the light collected by the condenser lens 7 is colored glass type using glass colored in blue, green, and red, respectively. Transmittance and color characteristics are controlled by the TN-LCD light valves 18, 19, and 20, combined by the dichroic prism 11 into light of one color, and combined by the projection lens 12. Is projected onto the screen 13 to represent the image.
제8도는 본 발명의 다른 실시예를 보인 것으로, 대형화면 프로젝터인 경우, 하나의 광원(27)으로부터 미러(23)를 이용하여각각의 착색유리형 TN-LCD 라이트 밸브(18,19,20)에 백색광을 전달하여 착색유리형 TN-LCD 라이트 밸브(18,19,20)에 의해 투과 및 색특성이 제어된후 인 라인형(in-line type)의 프로젝션 렌즈(24)에 의해 투사되도록 되어 있다. 그리고, 도면에서 미설명 부호 25는 리플렉터(reflector)를 보인 것이고, 26은 필터(filter)를 보인 것이다.8 shows another embodiment of the present invention. In the case of a large-screen projector, each of the colored glass type TN-LCD light valves 18, 19, and 20 using the mirror 23 from one light source 27 is shown. It transmits white light to the light-transmitting glass, and transmits and controls the color characteristics by the colored glass TN-LCD light valves 18, 19, and 20, and then is projected by the in-line type projection lens 24. have. In the drawing, reference numeral 25 denotes a reflector, and 26 denotes a filter.
제9도는 본 발명의 또 다른 실시에를 보인 것으로, 대형화면 프로젝터인 경우 각각의 광원(28)으로부터의 백색광을 집광렌즈(7)에 의하여 집광하여 각각의 착색유리형 TN-LCD 라이트 밸브(22)에 전달, 투과 및 색특성을 제어한 후 인 라인형(in-line type)의 프로젝션 렌즈(24)에 의해 스크린(13)(제6도 참조)에 투사하도록 되어있다.9 shows another embodiment of the present invention. In the case of a large-screen projector, the white light from each light source 28 is condensed by the condenser lens 7 and the respective colored glass type TN-LCD light valves 22 After the transmission, transmission and color characteristics are controlled, the projection lens 24 is projected onto the screen 13 (see FIG. 6) by the in-line type projection lens 24.
이상에서 설명한 바와같은 본 발명은 TN-LCD 프로젝터에 색상 구현을 위한 광학계를 간략화하여 용이하게 제조할 수 있으며, 제품의 생산원가를 절감할 수 있다.The present invention as described above can be easily manufactured by simplifying the optical system for the color implementation in the TN-LCD projector, it is possible to reduce the production cost of the product.
그리고, 3개의 광원을 사용하는 경우에는 1/3 광량의 램프를 사용할 수 있어 램프의 수명 및 발열량을 줄일 수 있고, 그 결과로서 액정 패널의 수명 또한 연장할 수 있으며, 종래의 광량을 가진 램프를 사용할 경우 높은 콘트라스트(high contrast)와 높은 휘도(high brighness)를 실현할 수 있다.In the case of using three light sources, the lamp of 1/3 light amount can be used, which can reduce the lifetime and the calorific value of the lamp. As a result, it is possible to extend the life of the liquid crystal panel. When used, high contrast and high brighness can be achieved.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920007665A KR100241469B1 (en) | 1992-05-06 | 1992-05-06 | Dyed glass type tn-lcd panel and projector with this |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920007665A KR100241469B1 (en) | 1992-05-06 | 1992-05-06 | Dyed glass type tn-lcd panel and projector with this |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930024481A KR930024481A (en) | 1993-12-22 |
| KR100241469B1 true KR100241469B1 (en) | 2000-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920007665A Expired - Fee Related KR100241469B1 (en) | 1992-05-06 | 1992-05-06 | Dyed glass type tn-lcd panel and projector with this |
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| Country | Link |
|---|---|
| KR (1) | KR100241469B1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920005573A (en) * | 1990-08-25 | 1992-03-28 | 이헌조 | Battery backup circuit of the telephone |
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1992
- 1992-05-06 KR KR1019920007665A patent/KR100241469B1/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920005573A (en) * | 1990-08-25 | 1992-03-28 | 이헌조 | Battery backup circuit of the telephone |
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| KR930024481A (en) | 1993-12-22 |
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