KR19990034135A - Dual Screen Liquid Crystal Display - Google Patents
Dual Screen Liquid Crystal Display Download PDFInfo
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- KR19990034135A KR19990034135A KR1019970055633A KR19970055633A KR19990034135A KR 19990034135 A KR19990034135 A KR 19990034135A KR 1019970055633 A KR1019970055633 A KR 1019970055633A KR 19970055633 A KR19970055633 A KR 19970055633A KR 19990034135 A KR19990034135 A KR 19990034135A
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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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
- G02F1/1343—Electrodes
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
본 발명은 액정 표시장치에 있어서, 특히 하나의 LCD(Liquid Crystal Display)소자를 2개의 소자 특성으로 하여 양방향에서 동시에 시청할수 있도록 한 두화면 액정 표시장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a two-screen liquid crystal display in which one liquid crystal display (LCD) element is characterized by two element characteristics so that simultaneous viewing in both directions is possible.
종래 LCD표시장치는 하나의 LCD소자를 이용하여 단방향으로 한 화면만 사용하므로, TV 또는 오락실 기기 등을 단방향만 보면서 사용하므로서 경제적인 측면 또는 실용적인 측면에서 손실이 있게 되고, 또한 램프제작시 가늘고 길게 만들어야 하는 문제가 있다.Conventional LCD display uses only one screen in one direction by using one LCD element, so there is a loss in terms of economic or practical use by watching TV or entertainment equipment only in one direction, and also make it thin and long when manufacturing lamps. There is a problem.
본 발명은 하나의 LCD소자를 변형하여 2개의 소자 특징을 갖도록 하기 위하여 기존에 형광램프의 제작시 가늘고 길게 만들어야 하던 것을 굵기 제한이 거의 없이 사용하도록 하고, 형광램프의 빛을 동시에 이용하도록 반사판을 대칭적으로 설치하여 양방향으로 빛을 반사시켜 편광필터, 액정, 칼라필터를 좌우측으로 구성시키므로서, TV를 양쪽에서 시청할수 있으며 또한 오락기기를 양쪽에서 즐길수 있도록 하여 경제적인 측면과 실용적인 측면을 고려한 것이다.The present invention is to change the one LCD device to have the characteristics of the two devices to use a thin and long in the conventional manufacturing of the fluorescent lamp with almost no thickness limit, symmetrical reflection plate to use the light of the fluorescent lamp at the same time By installing the light reflecting light in both directions, the polarizing filter, liquid crystal, and color filter are configured from left to right, so that TV can be viewed from both sides and entertainment equipment can be enjoyed from both sides.
Description
본 발명은 액정 표시장치에 있어서, 특히 하나의 LCD 소자를 이용하여 두 개의 특성으로 하여 양쪽에서 동시에 두화면을 사용할수 있도록 한 두화면 액정 표시장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-screen liquid crystal display in which two screens can be used simultaneously on both sides by using two LCDs, in particular, using one LCD element.
종래 1화면 액정 표시장치의 구성은 도 1에 도시된 바와같이,As shown in FIG. 1, the conventional single screen liquid crystal display device is constructed as shown in FIG.
상하측에 설치되어 빛을 발생하는 형광램프(1A)(1B)와, 상기 형광램프(1A)(1B)에서 발생되는 빛을 단방향으로 반사하는 반사판(2)과, 상기 반사판(2)에 의해 반사된 빛을 편광시키는 편광필터(3)와, 액정(6) 결정을 담기 위하여 일측면을 형성하는 유리기판(4)과, 상기 유리기판(4)에 붙어 액정(6)에 전압을 인가하는 화소전극(5)과, 상기 유리기판(4)(8) 사이에 위치하여 화소전극(5)과 대향전극(7)에서 만들어지는 전압에 의해 움직이는 액정(6)과, 상기 액정(6)에 전압을 인가하기 위하여 화소전극(5)과 대향하는 대향전극(7)과, 액정(6)에 조절된 빛에 대항하는 색을 만드는 칼라필터(8)와, 상기 액정(6) 결정을 담기 위한 타측면을 형성하는 유리기판(9)과, 사람의 눈(11)에 대한 영상을 맺히도록 하는 편광판(10)으로 구성된다.Fluorescent lamps 1A and 1B provided on the upper and lower sides to generate light, a reflecting plate 2 reflecting light generated by the fluorescent lamps 1A and 1B in one direction, and the reflecting plate 2 A polarizing filter 3 for polarizing the reflected light, a glass substrate 4 forming one side to contain crystals of the liquid crystal 6, and a glass substrate 4 attached to the glass substrate 4 to apply a voltage to the liquid crystal 6 A liquid crystal 6 positioned between the pixel electrode 5 and the glass substrates 4 and 8 and moved by a voltage generated at the pixel electrode 5 and the counter electrode 7 and the liquid crystal 6; A counter electrode 7 facing the pixel electrode 5 for applying a voltage, a color filter 8 for producing a color against light controlled by the liquid crystal 6, and a liquid crystal 6 for It consists of a glass substrate 9 forming the other side and a polarizing plate 10 to form an image of the human eye 11.
상기와 같이 구성되는 종래 1화면 액정 디스플레이 장치의 동작은 다음과 같다.The operation of the conventional single screen liquid crystal display device configured as described above is as follows.
먼저, 상하측에 위치한 형광램프(1A)(1B)에서 빛이 발생되면, 상기 발생된 빛은 반사판(2)에서 사람의 눈(11)을 통하여 볼수 있도록 빛을 단향향으로 반사시키게 되고, 상기 반사된 빛은 편광필터(3)를 통하여 빛이 편광된다.First, when light is generated from the fluorescent lamps 1A and 1B located on the upper and lower sides, the generated light reflects light in a unidirectional direction to be seen through the human eye 11 in the reflector 2, The reflected light is polarized light through the polarization filter (3).
그리고, 액정(6) 결정을 담고 있는 유리기판(4)(8)에 붙어있는 화소전극(5)과 대향전극(7)에 의해 액정(6)에 전압을 인가하게 되면, 상기 액정(6)은 움직이게 된다.When a voltage is applied to the liquid crystal 6 by the pixel electrode 5 and the counter electrode 7 attached to the glass substrates 4 and 8 containing the crystal of the liquid crystal 6, the liquid crystal 6 is applied. Is moved.
상기 액정(6)의 움직임으로 상기 편광필터(3)에서 편광된 빛을 조절하게 되고, 상기 조절된 빛은 칼라필터(9)에서 이에 대향하는 색신호에 의해 편광판(10)를 통해 사람의 눈(11)으로 볼수 있도록 하게 된다.The light polarized by the polarization filter 3 is controlled by the movement of the liquid crystal 6, and the adjusted light is transmitted to the human eye through the polarizer 10 by the color signal opposite to the color filter 9. 11) to be seen.
그러나, 종래 1화면 액정 디스플레이 장치를 보는 방향이 단방향뿐이므로 오락측면에서 실용성 및 경제성이 없으며, 또한 램프 제작시 가늘고 길게 만들어야 하므로서 효율면에서 저하되는 문제가 있다.However, since the viewing direction of the conventional one-screen liquid crystal display device is only one direction, there is no practicality and economical efficiency in terms of entertainment, and there is a problem in that efficiency is lowered because it is made to be thin and long when the lamp is manufactured.
상기와 같은 문제를 해결하기 위하여 본 발명은 LCD표시장치의 최대잇점인 얇은 두께를 최대한 활용할수 있도록 변형하여 기존의 단향향으로 사용하던 것을 양방향으로 사용할 있도록 형광램프의 빛을 대칭 방향으로 반사시키기 위한 반사판을 구비시키고, 상기 반사판에 의해 좌우측에 위치한 액정의 움직임으로 대칭방향에서 TV, 오락같은 게임을 양방향에서 즐길수 있도록 한 것이다.In order to solve the above problems, the present invention is modified to make the best use of the thin thickness, which is the maximum advantage of the LCD display device, to reflect the light of the fluorescent lamp in the symmetrical direction so that the existing one-way direction can be used in both directions. It is equipped with a reflector, and by the reflection of the liquid crystal located on the left and right by the reflection plate to play a game such as TV, entertainment in both directions in the symmetrical direction.
도 1은 종래 1화면 액정 표시장치의 구성도1 is a block diagram of a conventional one-screen liquid crystal display device
도 2는 본 발명 두화면 액정 표시장치의 구성도2 is a block diagram of the present invention two-screen liquid crystal display device
도 3은 본 발명 두화면 액정 표시장치의 운용 상태도3 is an operational state diagram of the present invention two-screen liquid crystal display
본 발명 두화면 액정 표시장치의 구성은 도 2에 도시된 바와같이,As shown in FIG.
액정표시 장치에 필요한 빛을 발생하기 위하여 상하측에 설치된 형광램프(21)와, 상기 형광램프(21)에서 발생되는 빛을 양측으로 반사하기 위하여 대칭적으로 설치된 반사판(22')과, 상기 반사판(22')에서 양측방향으로 반사된 빛을 편광시키는 편광필터(23)(23')와, 액정(26)(26') 결정을 담기 위한 유리기판(24)(24')(29)(29')과, 상기 유리기판(24)(24')에 붙어 액정(26)(26')에 전압을 인가하는 화소전극(25)(25')과, 상기 유리기판(24)(24')(29)(29') 사이에 위치하여 화소전극(25)(25')과 대향전극(27)(27')에서 만들어 지는 전압에 의해 움직이는 액정(26)(26')과, 상기 액정(26)(26')에 전압을 인가하기 위하여 화소전극(25)(25')에 대향하는 대향전극(27)(27')과, 상기 액정(26)(26')의 움직임에 대항하는 색을 만드는 칼라필터(28)(28')와, 상기 액정(26)(26')의 움직임에 대한 색 신호를 사람의 눈에 대한 영상을 맺히도록 하는 편광판(30)(30')으로 구성된다.Fluorescent lamps 21 provided on the upper and lower sides for generating light required for the liquid crystal display device, Reflective plates 22 'provided symmetrically to reflect the light generated from the fluorescent lamps 21 on both sides, and the reflecting plate Polarization filters 23 and 23 'for polarizing the light reflected in both directions at 22', and glass substrates 24, 24 'and 29 for holding crystals of liquid crystals 26 and 26'. 29 '), the pixel electrodes 25 and 25' which are attached to the glass substrates 24 and 24 'and apply voltage to the liquid crystals 26 and 26', and the glass substrates 24 and 24 '. Liquid crystals 26, 26 ′ between the electrodes 29 and 29 ′ and moved by voltages generated at the pixel electrodes 25, 25 ′ and the counter electrodes 27, 27 ′, and the liquid crystals. To counter the movement of the counter electrodes 27 and 27 'facing the pixel electrodes 25 and 25' and the liquid crystals 26 and 26 'to apply a voltage to the electrodes 26 and 26'. A color signal for the movement of the color filters 28 and 28 'that make color and the liquid crystals 26 and 26' for the human eye It consists of the image as a polarizing plate 30 (30 ') so that maethi.
한편, 상기 각 장치는 형광램프(21)에서 발생된 빛을 양방향으로 반사하는 대칭적인 반사판(22')에 대하여 편광필터(23)(23'), 화소전극(25)(25'), 액정(26)(26'), 대향전극(27)(27'), 칼라필터(28)(28'), 유리기판(24)(24')(29)(29') 및 편광판(30)(30')이 서로 대칭적으로 구성되어 있다.On the other hand, each device is a polarizing filter 23, 23 ', pixel electrodes 25 (25'), liquid crystal with respect to the symmetrical reflector plate 22 'reflecting the light generated from the fluorescent lamp 21 in both directions 26, 26 ', counter electrodes 27, 27', color filters 28, 28 ', glass substrates 24, 24', 29, 29 'and polarizing plate 30 ( 30 ') are symmetrical to each other.
상기와 같이 구성되는 본 발명 두화면 액정표시장치의 작용을 도 2와 도 3를 참조하여 설명하면 다음과 같다.Referring to Figures 2 and 3 the operation of the present invention the two-screen liquid crystal display device configured as described above is as follows.
먼저, 상하측으로 설치된 형광램프(21)에서 나온 빛은 반사판(22')에 의해 좌우측 양쪽으로 빛을 나뉘어 반사시키게 되며, 상기 반사판(22')에서 반사되는 빛은 각 방향별 위치한 편광필터(23)(23')에서 편광된 빛으로 만들어 진다.First, the light emitted from the fluorescent lamp 21 installed up and down is reflected by splitting the light to the left and right sides by the reflecting plate 22 ', and the light reflected from the reflecting plate 22' is polarized filter 23 positioned in each direction. It is made of light polarized at 23 '.
여기서, 상기 형광램프(21)을 동시에 양쪽에서 이용할수 있으며, 또한 이의 제작시 가늘고 길게 만들어야 하는 기존의 램프구조에서 벗어나 굵기 제한을 줄일수 있으므로 기존의 램프보다 2배의 굵기의 램프를 사용할수 있게 된다.Here, the fluorescent lamp 21 can be used at both sides at the same time, and also can reduce the thickness limit from the existing lamp structure to be made thin and long during its manufacture, so that the use of a lamp of twice the thickness than the conventional lamp do.
상기 각각의 편광필터(23)(23')에서 편광된 빛은 좌우측에 위치한 액정(26)(26')의 움직임에 따라 조절되게 되는데,The light polarized by each of the polarization filters 23 and 23 'is adjusted according to the movement of the liquid crystals 26 and 26' located on the left and right sides.
여기서, 액정(26)(26') 결정은 유리기판(24)(24')와 타측 유리기판(29)(29')에 사이에 위치하게 되고, 상기 유리기판(24)(24')에 붙어있는 화소전극(25)(25')에서 액정(26)(26')에 전압을 인가하게 되며. 상기 액정(26)(26')을 사이로 화소전극(25)(25')의 상대편 전극인 대향전극(27)(27')에 의해 만들어지는 전압에 의해 액정(26)(26')이 움직이게 된다.Herein, the liquid crystals 26, 26 ′ are positioned between the glass substrates 24, 24 ′ and the other glass substrates 29, 29 ′ and the glass substrates 24, 24 ′. The voltage is applied to the liquid crystals 26 and 26 'from the pixel electrodes 25 and 25'. The liquid crystals 26 and 26 'are moved by a voltage generated by the counter electrodes 27 and 27' which are opposite electrodes of the pixel electrodes 25 and 25 'between the liquid crystals 26 and 26'. do.
상기 액정(26)(26')의 움직임으로 편광필터(23)(23')에서 편광된 빛을 조절하게 되고, 상기 조절된 빛은 칼라필터(28)(28')에서 액정(26)(26')의 움직임에 따라 대응하는 원색(R/G/B)의 빛으로 바뀌게 되고, 상기 원색의 빛은 유리기판(29)(29')을 통해 편광판(30)(30')에서 사람의 눈에서 볼수 있는 영상이 맺히게 된다.Movement of the liquid crystals 26 and 26 'adjusts the light polarized by the polarization filters 23 and 23', and the adjusted light is applied to the liquid crystal 26 by the color filters 28 and 28 '. 26 ') changes to light of the corresponding primary color (R / G / B), and the primary color light passes through the glass substrates 29 and 29' of the polarizers 30 and 30 '. Images that can be seen in the eye are formed.
따라서, 형광램프(21)에서 만들어 지는 빛을 좌우측에서 이용할수 있도록 대칭적인 반사판(22)으로 하여 좌,우측으로 빛을 반사하게 하고, 상기 반사된 빛을 각 방향별로 설치된 각각의 편광필터(23)(23'), 액정(26)(26'), 칼라 필터(28)(28')를 통해 양방향에서 볼수 있게 되므로, 도 3과 같이 양방향에서 오락기기 사용 및 TV를 시청할 수 있게 된다.Accordingly, the light generated by the fluorescent lamp 21 is used as the symmetrical reflector plate 22 so as to use the light at the left and right sides, and the light is reflected to the left and right sides, and the polarized light filters 23 are installed in each direction. 23 ', the liquid crystals 26 and 26', and the color filters 28 and 28 'can be viewed in both directions, as shown in FIG.
본 발명 TV, 오락기기등에서 사용되는 하나의 화면 액정 표시장치를 사용자가 양쪽에서 동시에 사용할수 있도록 하므로서, 경제적인 측면과 실용적인 측면에 효과가 있다.According to the present invention, one screen liquid crystal display device used in a TV, an entertainment device, or the like can be used by the user at the same time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970055633A KR100248586B1 (en) | 1997-10-28 | 1997-10-28 | Lcd device for two picture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970055633A KR100248586B1 (en) | 1997-10-28 | 1997-10-28 | Lcd device for two picture |
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| Publication Number | Publication Date |
|---|---|
| KR19990034135A true KR19990034135A (en) | 1999-05-15 |
| KR100248586B1 KR100248586B1 (en) | 2000-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970055633A KR100248586B1 (en) | 1997-10-28 | 1997-10-28 | Lcd device for two picture |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020040989A (en) * | 2000-11-25 | 2002-05-31 | 주식회사 현대 디스플레이 테크놀로지 | Backlight unit for irradiating to upper and lower |
| KR20030047575A (en) * | 2001-12-11 | 2003-06-18 | 아이에스하이텍 주식회사 | Dual back light unit |
| KR100407951B1 (en) * | 2001-05-03 | 2003-12-03 | 엘지전자 주식회사 | Double Faces Display with Plasma Display Panel |
| KR100535890B1 (en) * | 2002-04-26 | 2005-12-12 | 가시오게산키 가부시키가이샤 | Lcd device having lcd pair observably installed on both side |
| KR100817939B1 (en) * | 2002-05-21 | 2008-03-31 | 엘지전자 주식회사 | Sheath Heater Holder Of Evporator For Feezer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004199027A (en) | 2002-10-24 | 2004-07-15 | Seiko Epson Corp | Display device and electronic equipment |
-
1997
- 1997-10-28 KR KR1019970055633A patent/KR100248586B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020040989A (en) * | 2000-11-25 | 2002-05-31 | 주식회사 현대 디스플레이 테크놀로지 | Backlight unit for irradiating to upper and lower |
| KR100407951B1 (en) * | 2001-05-03 | 2003-12-03 | 엘지전자 주식회사 | Double Faces Display with Plasma Display Panel |
| KR20030047575A (en) * | 2001-12-11 | 2003-06-18 | 아이에스하이텍 주식회사 | Dual back light unit |
| KR100535890B1 (en) * | 2002-04-26 | 2005-12-12 | 가시오게산키 가부시키가이샤 | Lcd device having lcd pair observably installed on both side |
| KR100817939B1 (en) * | 2002-05-21 | 2008-03-31 | 엘지전자 주식회사 | Sheath Heater Holder Of Evporator For Feezer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100248586B1 (en) | 2000-03-15 |
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