KR100741899B1 - Liquid Crystal Display with Multiple LCD Panels - Google Patents

Liquid Crystal Display with Multiple LCD Panels Download PDF

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KR100741899B1
KR100741899B1 KR1020000010567A KR20000010567A KR100741899B1 KR 100741899 B1 KR100741899 B1 KR 100741899B1 KR 1020000010567 A KR1020000010567 A KR 1020000010567A KR 20000010567 A KR20000010567 A KR 20000010567A KR 100741899 B1 KR100741899 B1 KR 100741899B1
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liquid crystal
crystal panel
distance
crystal display
display device
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KR1020000010567A
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KR20010086732A (en
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노봉규
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엘지.필립스 엘시디 주식회사
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks
    • E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/14—Wash-basins connected to the waste-pipe
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
    • E03C1/262—Object-catching inserts or similar devices for waste pipes or outlets combined with outlet stoppers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks
    • E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • E03C2001/2311—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms the actuation force being magnetic or electromagnetic
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks
    • E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • E03C2001/2317—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms transmission of actuation force involves a spring

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Liquid Crystal (AREA)

Abstract

본 발명은 액정판넬(100)을 여러개 부착한 액정표시소자에 있어서, 화면의 상이 동일 평면상에 나타내도록 광학계를 꾸민 액정표시소자에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device in which a plurality of liquid crystal panels (100) are attached, in which an optical system is provided so that an image of a screen is displayed on the same plane.

종래의 액정판넬을 여러개 부착한 액정표시소자는 액정판넬과 액정판넬을 서로 겹치게 두어, 겹치는 부분에서의 공간적인 차이로 최소한 3mm 정도로 화면이 어긋나 있어 표시 품질이 떨어졌다. 본 발명에서는 액정판넬 앞에 투명하고 굴절률이 공기보다 큰 거리보상판(30)을 두어 상이 맺는 거리를 조절하여, 화면의 상이 동일한 평면에 놓이도록 하였다. In the conventional liquid crystal display device having a plurality of liquid crystal panels, the liquid crystal panel and the liquid crystal panel are overlapped with each other, and the display quality is deteriorated because the screen is shifted by at least 3 mm due to the spatial difference in the overlapping portions. In the present invention, the distance compensation plate 30 is placed in front of the liquid crystal panel and the refractive index is larger than that of the air to adjust the distance between the images, so that the image on the screen is placed on the same plane.

본 발명의 액정표시소자는 글자의 크기가 2cm 정도이고 가시거리가 1∼5m 사이인, 안내판으로 많이 활용할 수 있다. The liquid crystal display device of the present invention can be utilized as a guide plate having a size of about 2cm and a visible distance of 1 to 5m.

액정표시소자, 거리보상판LCD, distance compensation plate

Description

액정판넬이 여러개인 액정표시소자 { Liquid Crystal Display with Multiple LCD Panels}Liquid Crystal Display with Multiple LCD Panels

도 1은 액정판넬의 평면도이다.1 is a plan view of a liquid crystal panel.

도 2는 액정판넬의 단면도이다.2 is a cross-sectional view of the liquid crystal panel.

도 3은 종래의 대화면 액정표시소자에 쓰이는 액정판넬의 배치도이다.3 is a layout view of a liquid crystal panel used in a conventional large screen liquid crystal display device.

도 4는 종래의 대화면 액정표시소자의 단면도이다.4 is a cross-sectional view of a conventional large screen liquid crystal display device.

도 5은 거리보상판이 있을 때의 상이 맺는 거리를 나타낸다.5 shows the distance formed by the phase when the distance compensation plate is present.

도 6는 본발명의 실시예이다.6 is an embodiment of the present invention.

※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 신호선 패드 2 : 접속단자 3 : 주사선 패드   1 signal line pad 2 connection terminal 3 scanning line pad

5 : 빛 차단막 7 : 표시영역 10 : 칼라필터기판   5 light blocking film 7 display area 10 color filter substrate

20 : 능동소자기판 30 : 거리보상판 41, 42, 43 : 거리보상판의 예  20: Active element substrate 30: Distance compensation plate 41, 42, 43: Example of distance compensation plate

50 : 백라이트 100 : 액정판넬  50: backlight 100: liquid crystal panel

본 발명은 액정판넬(100)을 여러개 부착한 액정표시소자에 있어서, 액정판 넬의 화면의 상이 동일 평면상에 있는 액정표시소자에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device having a plurality of liquid crystal panels 100, wherein the screen of the liquid crystal panel is on the same plane.

도 1은 액정판넬의 평면도이다. 신호선 패드(1)에는 신호선 전극이 그리고 주사선 패드(3)에는 주사선 전극이 있어 외부의 구동 IC와 연결된다. 주사선 전극과 신호선 전극은 표기상 도면에서 생략하였다. 신호선 패드의 폭이 b, 주사선 패드의 폭이 a로 표기되어 있다. 신호선과 주사선의 패드 폭은 회사마다 제품 모델마다 다르지만, 약 4∼5mm 정도이다. 유리기판의 모서리부터 표시화면(active area)(7)까지는 빛 차단막(5)이 칼라필터기판(10)에 만들어져 있다. 빛 차단막(5)의 폭은 c로 표기되어 있다. 빛 차단막(5)은 Cr과 같은 금속이거나 또는 빛을 흡수하는 물질이 섞인 수지로 만든다. 빛 차단막의 폭은 약 3mm 이하이다. 실제 화상은 표시화면(7)에만 나타난다. 도 2는 도 1의 액정판넬(100)을 절단선 BB′에서 본 것이다. 액정판넬은 능동소자기판(20)과 칼라필터기판(10) 사이에 액정이 채워진 구조이다. 능동소자기판(20)과 칼라필터기판(10)은 시일재(6)로 서로 붙어있다. 각각의 기판 외부에는 편광판(12)과 검광판(11)이 붙어있다. 칼라필터기판이 외부에 노출되어있고, 능동소자기판은 백라이트부에 접해 있다. 신호선 패드에는 신호선이 형성되어 있다. 신호선은 빨간색(R)과 초록색(G) 그리고 파란색(B)을 구동하는 전극들이 교대로 있다. 현재 상용되고 있는 모니터용 LCD 화면의 한 화소의 피치는 약 100㎛ 정도로 작기 때문에, 멀리서 볼 수 있는 대화면을 실현하려면 같은 색의 신호선들을을 여러개 묶어 구동하여 화소의 피치(pitch)를 크게 한다. 1 is a plan view of a liquid crystal panel. The signal line pad 1 has a signal line electrode and the scan line pad 3 has a scan line electrode to be connected to an external driving IC. The scan line electrode and the signal line electrode are omitted in the drawing. The width of the signal line pad is indicated by b, and the width of the scanning line pad is indicated by a. The pad widths of the signal and scan lines vary from company to company, but are about 4-5 mm. A light blocking film 5 is formed on the color filter substrate 10 from the edge of the glass substrate to the active area 7. The width of the light blocking film 5 is indicated by c. The light blocking film 5 is made of a metal such as Cr or a resin mixed with a light absorbing material. The light blocking film has a width of about 3 mm or less. The actual image only appears on the display screen 7. FIG. 2 is a view of the liquid crystal panel 100 of FIG. 1 from a cutting line BB '. The liquid crystal panel has a structure in which liquid crystal is filled between the active element substrate 20 and the color filter substrate 10. The active element substrate 20 and the color filter substrate 10 are attached to each other with a sealing material 6. A polarizing plate 12 and an analyzer plate 11 are attached to the outside of each substrate. The color filter substrate is exposed to the outside, and the active element substrate is in contact with the backlight. Signal lines are formed on the signal line pads. The signal lines alternate with the electrodes driving red (R), green (G), and blue (B). Since the pitch of one pixel of a monitor LCD screen currently used is about 100 µm, the pixel pitch is increased by driving a plurality of signal lines of the same color to realize a large screen that can be viewed from a distance.

도 1과 같은 액정판넬(100)을 여러개 부착하여 대화면을 만든다. 도 3은 대화면 액정표시소자의 액정판넬의 배치도이다. 도 3에서 액정판넬과 판넬 사이의 화상을 나타낼 수 없는 비표시 영역의 폭은 두 액정판넬의 표시 영역 사이의 거리이다. 도3과 같은 대화면 액정표시소자는 광 차단막의 폭(c)과 신호선 패드의 폭(b)과 주사선 패드의 폭(a) 때문에 비표시 영역이 생긴다. 칼라필터기판의 광 차단막(5)의 폭이 약 3mm 정도이고, 주사선 패드의 폭이 약 4mm이므로, 액정판넬과 액정판넬 사이의 비표시 영역은 최소 10mm 정도이다. 따라서 도 3과 같은 대화면 액정표시소자에서 글자를 나타내기 위해서는 비표시 영역 때문에 생기는 부분이 잘 드러나지 않도록 글자 구도를 잡아야 한다. 액정판넬과 액정판넬 사이의 비표시 영역의 폭을 줄이는 방법은 도 4처럼 액정셀을 겹쳐두는 방법이다. 도 4의 (가)와 (나)는 액정판넬을 두 장을 겹쳤을 때의 액정셀 배치이고, 도 4의 (다) 액정셀이 두장 이상일 때의 액정셀의 배치이다. 아래 액정판넬의 주사선 패드(3)로 들어오는 빛은 차단 되므로 액정판넬 바로 밑에 백라이트(50)를 두거나 또는 광도판을 두어 주사선 패드나 신호선 패드에 겹치는 부분의 액정판넬에도 빛이 투과되도록 한다. 도 4와 같이 배열하면 액정판넬과 액정판넬 사이의 비표시 영역의 폭은 광차단막의 폭인 c이다.      A plurality of liquid crystal panel 100 as shown in Figure 1 is attached to make a large screen. 3 is a layout view of a liquid crystal panel of a large screen liquid crystal display device. In FIG. 3, the width of the non-display area that cannot display an image between the liquid crystal panel and the panel is the distance between the display areas of the two liquid crystal panels. In the large screen liquid crystal display device shown in FIG. 3, a non-display area is generated due to the width c of the light blocking film, the width b of the signal line pad, and the width a of the scanning line pad. Since the width of the light blocking film 5 of the color filter substrate is about 3 mm and the width of the scanning line pad is about 4 mm, the non-display area between the liquid crystal panel and the liquid crystal panel is at least about 10 mm. Therefore, in order to display characters in the large screen liquid crystal display as shown in FIG. 3, it is necessary to compose the characters so that the portions generated due to the non-display area are not easily exposed. A method of reducing the width of the non-display area between the liquid crystal panel and the liquid crystal panel is to overlap the liquid crystal cells as shown in FIG. 4. 4A and 4B show the arrangement of liquid crystal cells when two sheets of liquid crystal panels are stacked, and the arrangement of liquid crystal cells when two (C) liquid crystal cells of FIG. Since light entering the scan line pad 3 of the lower liquid crystal panel is blocked, a backlight 50 or a light guide plate is placed directly under the liquid crystal panel so that light is also transmitted to the liquid crystal panel overlapping the scan line pad or the signal line pad. 4, the width of the non-display area between the liquid crystal panel and the liquid crystal panel is c, which is the width of the light blocking film.

종래의 액정판넬을 여러개 부착한 액정표시소자는 액정판넬(100)과 액정판넬의 비표시영역을 줄이기 위하여 액정판넬을 겹쳐두었다. 액정판넬이 서로 겹치는 부분에서의 공간적인 차이로 최소한 3mm 정도로 화면이 어긋나 있어 표시 품질이 떨어졌다. 본발명은 액정판넬을 겹치게 둔 액정표시소자에서 화면의 공간적인 차이를 최소로 하였다.  In the conventional liquid crystal display device having a plurality of liquid crystal panels, the liquid crystal panel 100 and the liquid crystal panel are stacked to reduce the non-display area of the liquid crystal panel. Due to the spatial difference in the overlapping areas of the liquid crystal panels, the screen is shifted by at least 3mm, and the display quality is deteriorated. The present invention minimizes the spatial difference of the screen in the liquid crystal display device in which the liquid crystal panel is overlapped.

본 발명에서는 액정판넬 앞에 투명하고 굴절율이 공기보다 큰 거리보상판(30)을 두어 상이 맺는 거리를 조절하여, 화면의 상이 동일한 평면에 놓이도록 하였다. In the present invention, the distance compensation plate 30 is placed in front of the liquid crystal panel and the refractive index is greater than that of air to adjust the distance between the images, so that the image on the screen is placed on the same plane.

도 5는 거리보상판(30)을 두었을 때의 눈이 느끼는 물체와의 거리의 변화를 설명하는 도면이다. 도 5에서 눈과 물체까지의 거리는 d이다. 두께가 c이고, 굴절률이 n인 투명한 거리보상판을 두면, 눈과 물체까지의 거리가 가까워보인다. 그 이유는 물체에서 나온 빛이 공기층에서 거리보상판을 들어길 때의 입사각이 φ라면, 거리보상판에서 굴절각 σ는 입사각 φ보다 작다. 굴절각 σ는 스넬법칙에 따라 식 1로부터 구할 수 있다. 도 5에서 거리보상판에서의 굴절각 σ는 편의상 생략하였다. 5 is a view for explaining a change in distance from an object felt by the eye when the distance compensation plate 30 is placed. In FIG. 5, the distance between the eye and the object is d. If you have a transparent distance compensator with a thickness of c and a refractive index of n, the distance between the eyes and the object will be closer. The reason is that if the angle of incidence when light from the object enters the distance compensator in the air layer is φ, the refractive angle σ in the distance compensator is smaller than the angle of incidence φ. The refractive angle σ can be obtained from Equation 1 according to the Snell's law. In FIG. 5, the refractive angle σ in the distance compensation plate is omitted for convenience.

Figure 112000506283031-pat00026
Figure 112000506283031-pat00026

거리보상판에서 공기층으로 굴절각은 φ이다. 도 5에서 실선은 광선의 궤적으로, 거리보상판 밖에서 실선을 직선으로 연결하면 이 직선(도 5에서는 점선)이 모이는 곳에 물체가 있는 것처럼 눈이 느낀다. 따라서 물체가 가까이 놓인것처럼 보인다. 도 5에서 물체의 상이 이동한 거리(d-d')는 식 1과 기하학을 이용하여 풀 수 있다. 그 결과는 식 2와 같다.The angle of refraction from the distance compensation plate to the air layer is φ. In FIG. 5, when the solid line is a trajectory of light rays and a solid line is connected to a straight line outside the distance compensation plate, the eye feels as if the object is where the straight line (dashed line in FIG. 5) is collected. Thus, the object appears to be near. In FIG. 5, the distance d-d 'of the object's phase can be solved using Equation 1 and geometry. The result is shown in Equation 2.

Figure 112000506283031-pat00027
Figure 112000506283031-pat00027

위와 같이 거리보상판을 두면 눈이 느끼는 물체까지의 거리를 조절할 수 있다. 거리보상판의 모양을 액정셀을 겹쳐둔 배치에 맞게 조절하면 정면에서 액정표시소자 전체의 화면을 한 평면에 둘 수 있다. 눈으로부터 먼거리에 있는 액정판넬 부분은 거리보상판을 두껍게 만들고, 눈으로부터 가까운 거리에 있는 액정판넬 부분은 거리보상판을 얇게 만들면 이로적으로 눈이 느끼는 상의 거리를 한 평면에 둘 수 있다. If you put the distance compensation plate as above, you can adjust the distance to the object that your eyes feel. If the shape of the distance compensation plate is adjusted to match the arrangement of the liquid crystal cells, the entire screen of the liquid crystal display can be placed on one plane from the front side. The liquid crystal panel portion far from the eye makes the distance compensating plate thicker, and the liquid crystal panel portion near the eye can make the distance compensating plate thin, thereby putting the distance that the eye feels on one plane.

도 6과 같이 액정셀 배치 모양에 따라서 거리보상판(41,42,43)의 모양이 달라진다. 액정판넬의 유리기판(10,20)의 두께는 보통 0.5mm이고, 편광판(11)의 두께는 0.15mm이고, 백라이트의 도광판의 두께는 1.5mm 정도이므로, 액정판넬이 겹치는 부분에서 각각의 화면의 위치는 약 3mm 정도 차이가 난다. As shown in FIG. 6, the shapes of the distance compensation plates 41, 42, and 43 vary according to the arrangement of the liquid crystal cells. Since the thickness of the glass substrates 10 and 20 of the liquid crystal panel is usually 0.5 mm, the thickness of the polarizing plate 11 is 0.15 mm, and the thickness of the light guide plate of the backlight is about 1.5 mm, the liquid crystal panel overlaps each screen. The position differs by about 3mm.

가장 경제적인 거리보상판은 아크릴이나 폴리카보네이트 계열의 플라스틱 수지로 굴절률은 대략 1.3∼1.4 정도이다. 이러한 플라스틱 수지를 써서 3mm 정도 상을 앞으로 당기려면 식 2로부터 거리보상판의 가장 두꺼운 부분과 얇은 부분의 두께의 차이가 1.5∼2cm 정도 되어야 한다. The most economical distance compensator is acrylic or polycarbonate plastic resin, which has a refractive index of about 1.3 to 1.4. In order to pull the image forward by about 3mm using this plastic resin, the difference between the thickness of the thickest part and the thinnest part of the distance compensator should be about 1.5 ~ 2cm.

노트북이나 모니터용 액정판넬을 이용하여 본 발명의 대화면 액정표시소자를 만드는 경우에는 각각의 신호선과 주사선을 따로 따로 독립 구동하는 것 보다는, 같은 색을 구동하는 인접 신호선 여러개를 묶고, 또한 인접 주사선을 여러 개 묶어 동일 주사 전압을 걸어주는 것이 회로구성이 간편하다. 전기적으로 서로 접촉하여 쓰는 신호선의 평균 숫자는 화면의 모드와 액정판넬의 피치에 따라서 달라지는 데, 보통 주사선과 신호선 모두 10개 이상 연결하여 구동한다. When a large screen liquid crystal display device of the present invention is manufactured using a liquid crystal panel for a notebook or a monitor, rather than driving each signal line and the scan line separately, a plurality of adjacent signal lines for driving the same color are bundled and several adjacent scan lines are connected. It is easy to configure the circuit by applying the same scan voltage in a bundle. The average number of signal lines used in electrical contact with each other varies depending on the mode of the screen and the pitch of the liquid crystal panel. Usually, at least 10 scan lines and signal lines are connected and driven.

본 발명에서는 액정판넬 앞에 투명하고 굴절율이 공기보다 큰 거리보상판(30)을 두어 상이 맺는 거리를 조절하여, 화면의 상이 동일한 평면에 놓이게하여 화질을 높였다. 본 발명의 액정표시소자는 글자의 크기가 2cm 정도이고 가시거리가 1∼5m 사이인, 안내판으로 많이 활용할 수 있다In the present invention, the distance compensation plate 30 is placed in front of the liquid crystal panel and the refractive index is greater than that of the air to adjust the distance between the images, and the image is placed on the same plane to improve the image quality. The liquid crystal display device of the present invention can be utilized as a guide plate, the size of the letter is about 2cm and the visible distance is between 1 to 5m.

Claims (4)

인접한 액정 판넬이 서로 중첩된 영역을 가지도록 배치된 복수의 액정 판넬과, 상기 액정 판넬 앞에 배치된 거리보상판을 포함하여 구성되고, It comprises a plurality of liquid crystal panel arranged so that adjacent liquid crystal panel has an area overlapping each other, and a distance compensation plate disposed in front of the liquid crystal panel, 상기 거리보상판에서 가장 두꺼운 부분과 얇은 부분의 두께의 차이가 2cm 이하인것을 특징으로하는 액정표시소자. The difference between the thickness of the thickest portion and the thinnest portion of the distance compensation plate is less than 2cm. 제1항에 있어서 거리보상판이 플라스틱 수지인 것을 특징으로 하는 액정표시소자. The liquid crystal display device according to claim 1, wherein the distance compensation plate is a plastic resin. 삭제delete 제1항에 있어서, 같은 색을 구동하는 인접 두개 이상의 신호선에 동일 신호전압이 걸리는 것을 특징으로하는 액정표시소자. The liquid crystal display device according to claim 1, wherein the same signal voltage is applied to two or more adjacent signal lines which drive the same color.
KR1020000010567A 2000-03-02 2000-03-02 Liquid Crystal Display with Multiple LCD Panels KR100741899B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004505A1 (en) * 1984-03-28 1985-10-10 Matsushita Electric Industrial Co., Ltd. Large liquid crystal display
JPH10293542A (en) * 1997-04-17 1998-11-04 Sharp Corp Image display device
KR20010086700A (en) * 2000-03-02 2001-09-15 구본준, 론 위라하디락사 method for fabricating large scale liquid crystal display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004505A1 (en) * 1984-03-28 1985-10-10 Matsushita Electric Industrial Co., Ltd. Large liquid crystal display
JPH10293542A (en) * 1997-04-17 1998-11-04 Sharp Corp Image display device
KR20010086700A (en) * 2000-03-02 2001-09-15 구본준, 론 위라하디락사 method for fabricating large scale liquid crystal display device

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