KR950011955B1 - Liquid crystal display elements - Google Patents
Liquid crystal display elements Download PDFInfo
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- KR950011955B1 KR950011955B1 KR1019920024915A KR920024915A KR950011955B1 KR 950011955 B1 KR950011955 B1 KR 950011955B1 KR 1019920024915 A KR1019920024915 A KR 1019920024915A KR 920024915 A KR920024915 A KR 920024915A KR 950011955 B1 KR950011955 B1 KR 950011955B1
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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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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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Abstract
Description
제1도는 일반적인 파장과 투과율 관계 특성도.1 is a characteristic wavelength and transmittance relationship characteristic diagram.
제2도는 종래의 액정표시소자 구조 단면도.2 is a cross-sectional view of a conventional liquid crystal display device structure.
제3도는 제1도의 칼라 필터 상세도.3 is a detailed view of the color filter of FIG.
제4도는 본 발명의 액정표시소자 구조 단면도.4 is a cross-sectional view of a structure of a liquid crystal display device of the present invention.
제5도는 제3도의 칼라필터 상세도.5 is a detailed view of the color filter of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1, 1a : 유리기판 2 : 칼라필터층1, 1a: glass substrate 2: color filter layer
3 : 블랙매트릭스 4 : 보호막3: black matrix 4: shield
5, 5a : 투명전극 6, 6a : 절연막5, 5a: transparent electrode 6, 6a: insulating film
7, 7a : 배향막 8 : 스페이서7, 7a: alignment layer 8: spacer
9 : 액정9: liquid crystal
본 발명은 액정표시소자에 관한것으로 특히 레더(R), 그린(Green), 블루(Blue) 각각의 칼라필터 투과량 차이로 인한 화면의 불균일한 색상을 보정하기 위하여 투과량과 반비례한 크기의 칼라필터를 각각 형성하여 균일한 색상을 갖도록한 액정표시소자에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device. In particular, in order to correct an uneven color of a screen caused by a difference in the color filter transmittance of each of leather (R), green, and blue, a color filter having a size in inverse proportion to a transmission amount is used. The present invention relates to a liquid crystal display device which is formed to have a uniform color, respectively.
종래의 액정표시소자를 첨부한 도면을 참조하여 설명하면 다음과 같다.A conventional liquid crystal display device will be described below with reference to the accompanying drawings.
제1도는 일반적인 파장과 투과율 관계 특성도로써, 블루(B), 그린(G)대역의 파장보다 레드(R)대역의 파장에서 투과율이 높음을 알수있다. 따라서 칼라필터 R.G.B를 갖는 사이즈로 형성하면 투과율 차이에 의해 색상의 균일도가 파괴된다.FIG. 1 is a general wavelength and transmittance relationship characteristic diagram, which shows that the transmittance is higher in the wavelength of the red (R) band than the wavelength of the blue (B) and green (G) bands. Therefore, when formed into a size having a color filter R.G.B, the uniformity of color is destroyed by the transmittance difference.
제2도는 종래의 액정표시소자 구조 단면도로서, 하유리기판(1)위에 소정의 간격을 갖고 동일한 사이즈로 R.G.B 칼라필터층(2)이 형성되고 R.G.B 칼라필터층(2) 각 사이에는 블랙 매트릭스(3)에 걸쳐 칼라필터 보호막(4)이 형성되고, 보호막(4)위에 전압을 인가할 수 있도록 제1투명전극(5)이 형성되고, 제1투명전극(5)위에 투명전극 절연용 제1절연막(6)과 액정분자를 일정한 방향성을 갖도록 하는 제1배향막(7)이 형성된다. 그리고, 상유리기판(1a)에 전압인가용 제2투명전극(5a)이 형성되고 제1절연막(6a)과 제2배향막(7a)이 형성된다. 이와 같이 형성된 상, 하 유리기판을 일정간격을 유지하여 합착하고 상하유리기판 사이에 액정(9)을 주입하고 스페이서(8)로 셀겝을 유지하고 밀봉하여 액정표시소자가 제조된 것이다.FIG. 2 is a cross-sectional view of a conventional liquid crystal display device structure, in which an RGB color filter layer 2 is formed on the lower glass substrate 1 at a predetermined interval with the same size, and a black matrix 3 is formed between each of the RGB color filter layers 2. A color filter protective film 4 is formed thereon, and a first transparent electrode 5 is formed on the protective film 4 so that a voltage can be applied, and a first insulating film 6 for insulating transparent electrodes on the first transparent electrode 5. ) And first liquid crystal film 7 having liquid crystal molecules having a constant directivity. Then, the second transparent electrode 5a for voltage application is formed on the upper glass substrate 1a, and the first insulating film 6a and the second alignment film 7a are formed. The upper and lower glass substrates formed as described above are bonded to each other by maintaining a predetermined interval, and the liquid crystal 9 is injected between the upper and lower glass substrates, and the cell 로 is held and sealed with the spacer 8 to manufacture the liquid crystal display device.
제3도는 제2도의 R.G.B 칼라필터층(2)의 상세도로써 G.R.B 칼라필터가 일정한 간격을 갖고 동일한 사이즈로 배열한 것이다.3 is a detailed view of the R.G.B color filter layer 2 of FIG. 2, in which the G.R.B color filters are arranged in the same size at regular intervals.
이와 같이 구성된 종래의 액정표시소자 동작은 다음과 같다. 하유리기판(1)을 통과한 빛은 R.G.B 칼라필터층(2)를 거치고 칼라필터층(2)을 거친 각각의 R.G.B 색상을 가진 빛은 제1, 제2 투명전극(5,5a)에 전압이 인가될때 인가된 부분만이 색상이 상유리기판(1a)을 통과하여 액정표시소자의 영상(Image)를 표시한다.The operation of the conventional liquid crystal display device configured as described above is as follows. Light passing through the lower glass substrate 1 passes through the RGB color filter layer 2 and light having respective RGB colors passing through the color filter layer 2 is applied to the first and second transparent electrodes 5 and 5a. Only the applied part passes through the upper glass substrate 1a to display an image of the liquid crystal display device.
그러나 이와 같은 종래의 액정표시소자에 있어서는 R.G.B 칼라필터의 두께 및 사이즈가 일정하므로 R.G.B 필터를 투과한 빛의 투과도를 각각 TR, TG, T라 하면, TR>TG=T이므로 표시소자의 영상이 R.G.B를 혼합하였을때 흰색(White)의 색상이 아닌 레드(빨강색)에 가까운 색상이 나타나서 선명도가 저하되는 문제점이 있고, 이 문제점을 해결하기위하여 최근의 기술로 실용신안 공고 92-6145가 제시되었는데, 이는 R.G.B 칼라필터의 사이즈가 일정하게 하고 투과율에 반비례하도록 R.G.B 칼라필터의 두께를 다르게하였으나, R.G.B 칼라필터의 두께가 다르므로해서 일정한 셀겝을 유지하기 힘들며, R.G.B 칼라필터의 두께를 다르게하는 공정도 복잡하게 되는 등의 문제점이 있다.However, in the conventional liquid crystal display device, since the thickness and size of the RGB color filter are constant, the transmittance of the light transmitted through the RGB filter is T R , T G , and T, respectively, and T R > T G = T. When the image of RGB is mixed with the color of red (red) instead of white color, there is a problem that the clarity is deteriorated. To solve this problem, Utility Model Announcement 92-6145 Although the thickness of the RGB color filter is different so that the size of the RGB color filter is constant and inversely proportional to the transmittance, the thickness of the RGB color filter is different. There is a problem that the process is complicated.
본 발명은 이와 같은 문제점을 해결하기 위하여 안출한 것으로서, 칼라필터중 레드부분의 사이즈(Size)를 줄여서 균일한 색상을 갖도록하는데 그 목적이 있다.The present invention has been made to solve the above problems, and has an object of reducing the size of the red portion of the color filter to have a uniform color.
이와 같은 목적을 달성하기 위한 본 발명의 액정표시소자를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The liquid crystal display of the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.
제4도는 본 발명의 액정표시소자 구조 단면도이고 제5도는 제4도의 R.G.B 칼라필터의 평면도로써, 하유리기판(1)에 사이즈가 다르게(R<G=B) R.G.B 칼라필터층(2)이 형성되고 R.G.B 칼라필터 사이에 R.G.B를 구분하기위한 블랙 매트릭스(3)가 형성되고 그위에 보호막(4)이 형성되고 보호막(4)위에 전압인가용의 제1투명전극(5)이 복수개 형성되고, 그위에 투명전극에 전압이 인가될때 상하도통을 방지하기위한 제1절연막(6)과, 액정분자를 일정한 방향으로 배열하기 위한 제1배향막(7)이 형성되며, 상유리기판(1a)에 전압인가용 제2투명전극(5a)이 제1투명전극과 수직방향으로 형성되고, 제2투명전극(5a)위에 제2절연막(6a)과 제2배향막(7a)이 형성된다.4 is a cross-sectional view of the structure of the liquid crystal display device of the present invention, and FIG. 5 is a plan view of the RGB color filter of FIG. 4, in which the RGB color filter layer 2 having a different size (R <G = B) is formed on the lower glass substrate 1. A black matrix 3 is formed between the RGB color filters to distinguish RGB, and a protective film 4 is formed thereon, and a plurality of first transparent electrodes 5 for voltage application are formed on the protective film 4 and thereon. When a voltage is applied to the transparent electrode, a first insulating film 6 for preventing up and down conduction and a first alignment film 7 for arranging liquid crystal molecules in a predetermined direction are formed, and a voltage applying agent is applied to the upper glass substrate 1a. The second transparent electrode 5a is formed in a direction perpendicular to the first transparent electrode, and a second insulating film 6a and a second alignment film 7a are formed on the second transparent electrode 5a.
이와 같이 형성된 상하유리기판(1a,1)을 유리기판이 바깥쪽을 향하도록 합착한후 상하유리기판 사이에 액정(9)이 주입된다. 미설명부호는 상하기판을 밀봉하고 셀겝을 유지시키는 스페이서(8)이다.The upper and lower glass substrates 1a and 1 formed as described above are bonded to each other so that the glass substrate faces outward, and then the liquid crystal 9 is injected between the upper and lower glass substrates. Reference numerals denote spacers 8 which seal the upper and lower substrates and hold the shell.
여기서, R.G.B 칼라필터는 제5도에 도시한 바와 같이 스트라이프(Stripe)형으로스트라이프 방향의 사이즈는 R.G.B 모두 동일하게 하고 스트라이프 방향의 수직방향으로는 G,B칼라필터보다, R칼라필터를 (d)만큼(15~20%)작게 80~85%크기로 한것이다. 그러나 제4도에서 R.G.B 칼라필터층(2)위에 제2투명전극(5)은 R.G.B칼라필터 모두 같게 형성한다.As shown in FIG. 5, the RGB color filter has a stripe type, and the stripe direction has the same size in both RGB directions, and in the vertical direction of the stripe direction, the R color filter (d (15 ~ 20%) is as small as 80 ~ 85% size. However, in FIG. 4, the second transparent electrode 5 is formed on the R.G.B color filter layer 2 in the same manner as in the R.G.B color filter.
이와 같은 본 발명의 액정표시소자의 동작은 다음과 같다. 하유리기판(1)을 통과한 빛은 R.G.B 칼라필터층(2) 통과하여 각각의 R.G.B 색상을 갖는 빛이되고, 각각의 R.G.B 색상을 갖는 빛은 제1, 제2투명전극(5,5a)에 전압이 인가될때 인가된 부분만이 색상이 상유리기판(1a)을 통과하여 액정표시소자의 영상을 표시한다. 그런데 본 발명에서는 제1도에 도시한 바와 같은 R.G.B에 따른 투과도 차이를 각각의 R.G.B 칼라필터의 두께는 동일하게 하고 사이즈는 투과도와 반비례하게 감소시켰기 때문에 결국 R.G.B의 투과도가 같게한다.The operation of the liquid crystal display device as described above is as follows. Light passing through the lower glass substrate 1 passes through the RGB color filter layer 2 to be light having respective RGB colors, and light having the respective RGB colors is applied to the first and second transparent electrodes 5 and 5a. When this is applied, only the applied portion passes through the upper glass substrate 1a to display an image of the liquid crystal display device. In the present invention, however, the permeability difference according to R.G.B as shown in FIG. 1 is equal in thickness to each R.G.B color filter and the size is inversely reduced, so that the permeability of R.G.B is the same.
이상에서 설명한 바와 같은 본 발명의 액정표시소자에 있어서는 R.G.B에 대한 투과도 차이를 R.G.B 칼라필터의 사이즈를 달리하여 보상함으로 균일한 색상을 갖기때문에 선명한 영향을 표시할 수 있는 효과가 있다.In the liquid crystal display device of the present invention as described above, since the difference in transmittance for R.G.B is compensated by changing the size of the R.G.B color filter, it is possible to display a clear effect because it has a uniform color.
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KR1019920024915A KR950011955B1 (en) | 1992-12-21 | 1992-12-21 | Liquid crystal display elements |
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KR1019920024915A KR950011955B1 (en) | 1992-12-21 | 1992-12-21 | Liquid crystal display elements |
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KR950011955B1 true KR950011955B1 (en) | 1995-10-12 |
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KR20040021168A (en) * | 2002-09-03 | 2004-03-10 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Device |
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KR20040021168A (en) * | 2002-09-03 | 2004-03-10 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Device |
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