KR920007615B1 - A color lcd device - Google Patents

A color lcd device Download PDF

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Publication number
KR920007615B1
KR920007615B1 KR1019860007050A KR860007050A KR920007615B1 KR 920007615 B1 KR920007615 B1 KR 920007615B1 KR 1019860007050 A KR1019860007050 A KR 1019860007050A KR 860007050 A KR860007050 A KR 860007050A KR 920007615 B1 KR920007615 B1 KR 920007615B1
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South Korea
Prior art keywords
film
liquid crystal
crystal display
color filter
tin oxide
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KR1019860007050A
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Korean (ko)
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KR880003275A (en
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손병광
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주식회사 금성사
구자학
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Priority to KR1019860007050A priority Critical patent/KR920007615B1/en
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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
    • G02F1/133509—Filters, e.g. light shielding masks
    • 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
    • G02F1/133528—Polarisers

Abstract

The color liquid crystal display element is manufactured by (a) inserting a liquid crystal (10) between the upper plate (7) and the lower plate (6), and (b) adhering the polarizing plates (11,11'). The upper plate comprises a color filter (8) an indium tin oxide film (2'), chromium film (3') and an orientation film (5') on the upper glass substrate (1'), and the lower plate comprises an indium tin oxide film (2), a chromium film (3), a thin film transistor (4) and an orietation film (5) on the lower glass substrate (1). The crystal display element comprises a red, a green and a blue pixel (8a,8b,8c) having the penetrating pores (8') of 30-60 μm diameter on the color filter.

Description

칼라액정표시소자Color LCD

제1a도 내지 제1f도는 일반적인 칼라액정표시소자의 제작공정을 보인 공정도.1A to 1F are process drawings showing a manufacturing process of a general color liquid crystal display device.

제2도는 일반적인 칼라액정표시소자의 종단면도.2 is a longitudinal sectional view of a typical color liquid crystal display device.

제3도는 칼라액정표시소자에 사용된 종래의 칼라필터의 평면도.3 is a plan view of a conventional color filter used in a color liquid crystal display element.

제4도는 칼라액정표시소자에 사용되는 본 발명의 칼라필터의 평면도.4 is a plan view of a color filter of the present invention for use in a color liquid crystal display element.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 1' : 유리기판 2, 2' : 인디움산화주석막1, 1 ': glass substrate 2, 2': indium tin oxide film

3, 3' : 크롬막 4 : 박막트랜지스터3, 3 ': chrome film 4: thin film transistor

5, 5' : 배향막 6 : 하기판5, 5 ': alignment film 6: base plate

7 : 상기판 8 : 칼라필터7: upper plate 8: color filter

8a, 8b, 8c : 화소 8' : 투과공8a, 8b, 8c: pixel 8 ': through hole

10 : 액정 11, 11' : 편광판10: liquid crystal 11, 11 ': polarizing plate

본 발명은 그림 및 문자등을 표시하는 도트 메트릭스형의 칼라액정표시소자에 관한 것으로, 특히 배면등에서 발상되는 광의 투과율을 높여 화면의 밝기를 향상시킬 수 있도록 한 칼라액정표시소자에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a color matrix liquid crystal display device of a dot matrix type for displaying pictures and characters, and more particularly, to a color liquid crystal display device capable of improving the brightness of a screen by increasing the transmittance of light generated from the back surface.

일반적으로 칼라액정표시소자는, 제1a도에 도시한 바와 같이 하유리기판(1)에 진공증착 또는 스퍼터링으로 인디움산화주석막(2) 및 크롬막(3)을 형성하고, 제2도에 도시한 바와 같이 구동용 박막 트랜지스터(4)를 제작한 다음 제1b도에 도시한 바와 같이 로울코우터(Roll Coater)로 감광막(5)을 도포하고, 원하는 패턴의 노광 마스크로 노광하여 제1c도에 도시한 바와 같이 현상하며, 에칭액으로 에칭하여 제1d도에 도시한 바와 같이 크롬막(3)을 형성하여, 제1e도에 도시한 바와 같이 크롬막(3)과 동일 패턴으로 인디움산화주석막(2)을 에칭시켜 전극 매트릭스를 형성한 후 제1f도에 도시한 바와 같이 남은 감광막(4)를 박리 세척하고, 배향막(5)을 배항시켜 하기판(6)을 제작한다.In general, as shown in FIG. 1A, the color liquid crystal display device forms the indium tin oxide film 2 and the chromium film 3 by vacuum deposition or sputtering on the lower glass substrate 1, and as shown in FIG. As described above, the driving thin film transistor 4 is fabricated, and then the photosensitive film 5 is coated with a roll coater as shown in FIG. 1B, and then exposed to an exposure mask having a desired pattern. It is developed as shown, and is etched with an etchant to form the chromium film 3 as shown in FIG. 1d, and the indium tin oxide film in the same pattern as the chromium film 3 as shown in FIG. 1e. After (2) is etched to form an electrode matrix, the remaining photosensitive film 4 is peeled off and washed as shown in FIG. 1f, and the orientation film 5 is bent to prepare a base plate 6.

다음, 상기판(7)은 제2도에 도시한 바와 같이 상유리기판(1')에 적색, 녹색 및 청색 칼라필터(8)를 형성한 후 하기판(6)과 함께 인디움산화주석막(2') 및 크롬막(3'), 배향막(5')을 형성하여 제작하고, 이와 같이 된 하기판(6)의 가장자리에 스페이서(9)를 산포하고, 시일(Seal)부위에 시일링제를 인쇄한 후 상기판(7)을 부착시키며, 진공조에서 액정(10)을 주입하며, 편광판(11)(11')을 부착시켜 제조하는 것이다.Next, the plate 7 is formed with a red, green and blue color filter 8 on the upper glass substrate 1 ′ as shown in FIG. 2 '), the chromium film 3' and the alignment film 5 'are formed, and the spacer 9 is scattered on the edge of the substrate 6 thus formed, and a sealing agent is applied to the seal. After printing, the plate 7 is attached, the liquid crystal 10 is injected into a vacuum chamber, and the polarizing plates 11 and 11 'are attached to each other.

이와 같은 칼라액정표시소자에 있어서 종래에는 제3도에 도시한 바와 같이 평판상으로된 칼라필터(8)를 사용하여 제작하고 있었기 때문에 배면등(12)에서 발사된 광이 하 편광판(11) 및 유리기판(1), 인디움산화주석막(2), 크롬막(3), 배향막(5), 액정(10), 배향막(5'), 크롬막(3'), 인디움산화주석막(2'), 칼라필터(8), 유리기판(1'), 편광판(11')을 통과하면서 감쇄가 많아져서 화면이 어둡게 되는 결함이 있었다.In the color liquid crystal display device as described above, since light has been conventionally produced using a flat plate-like color filter 8 as shown in FIG. 3, the light emitted from the rear light 12 causes the lower polarizing plate 11 and Glass substrate 1, indium tin oxide film 2, chromium film 3, alignment film 5, liquid crystal 10, alignment film 5 ', chromium film 3', indium tin oxide film ( 2 '), the color filter 8, the glass substrate 1', and the polarizing plate 11 'pass through a lot of attenuation, and the screen was dark.

본 발명의 목적은, 광의 투과율을 높여 화면의 밝기를 향상시킬 수 있도록 한 칼라액정표시소자를 제공하려는 것이다.An object of the present invention is to provide a color liquid crystal display device which can improve the brightness of the screen by increasing the light transmittance.

이하 본 발명에 의한 칼라액정표시소자를 첨부도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, the color liquid crystal display device according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

제4도는 본 발명의 칼라액정표시소자에 사용되는 칼라필터를 도시하는 것이다. 이하의 설명에서 일반적인 칼라액정표시소자의 구성요소에 대하여는 제1도를 참고로 하여 설명한다.4 shows a color filter used in the color liquid crystal display device of the present invention. In the following description, components of a general color liquid crystal display device will be described with reference to FIG.

본 발명에 의한 칼라액정표시소자는, 제1도에 도시한 바와 같이, 하유리기판(1)에 인디움산화주석막(2) 및 크롬막(3), 박막트랜지스터(4), 배향막(5)을 형성한 하기판(6)과, 상유리기판(1')에 칼라필터(8) 및 인디움산화주석막(2'), 크롬막(3'), 배향막(5')을 형성한 상기 판(7)사이에 액정(10)을 주입하고, 편광판(11)(11')을 부착하여서 되는 것으로, 상기 칼라필터(8)는 제4도에 도시한 바와 같이, 적색, 녹색 및 청색화소(8a)(8b)(8c)에 직경 30~60㎛ 의 투과공(8')을 다수개 형성하여서 된 것이다.In the color liquid crystal display device according to the present invention, as shown in FIG. 1, an indium tin oxide film 2, a chromium film 3, a thin film transistor 4, an alignment film 5 are formed on the lower glass substrate 1; And a color filter 8, an indium tin oxide film 2 ', a chromium film 3', and an alignment film 5 'formed on the lower glass substrate 6 and the upper glass substrate 1'. The liquid crystal 10 is injected between the seven and the polarizing plates 11 and 11 'are attached to each other, and the color filter 8 is formed of red, green, and blue pixels as shown in FIG. A plurality of through holes 8 'having a diameter of 30 to 60 µm are formed in 8a), 8b and 8c.

이와 같이 구성된 본 발명의 칼라액정표시소자는, 종래와 마찬가지로 배면등(12)에서 발사된 광이 편광판(11) 및 유기기판(1), 인디움산화주석막(2), 크롬막(3), 배향막(5), 액정(10), 배향막(5'), 크롬막(3'), 인디움산화주석막(2'), 칼라필터(8), 유리기판(1'), 편광판(11')을 통과하게 되는데 이때 칼라필터(8)를 통과하는 과정에서 각 화소(8a)(8b)(8c)에 천공된 다수개의 투과공(8')을 투과하게 되어 배면등(12)에서 발사된 광의 투과율이 높아져서 화면의 밝기가 밝아지게 된다.In the color liquid crystal display device of the present invention configured as described above, the light emitted from the rear lamp 12 is polarized plate 11 and organic substrate 1, indium tin oxide film 2, and chromium film 3 as in the prior art. , Alignment film 5, liquid crystal 10, alignment film 5 ', chromium film 3', indium tin oxide film 2 ', color filter 8, glass substrate 1', polarizing plate 11 ') Passes through the color filter (8) through the plurality of transmission holes (8') perforated in each pixel (8a) (8b) (8c) and fired from the rear light (12) The transmittance of the light is increased, the brightness of the screen becomes bright.

또한 투과공(8')의 직경 30~60㎛ 정도로 매우 작으므로 육안으로는 보이지 않아 화질이 저하되는 일이 없게 된다.Moreover, since the diameter of the perforation hole 8 'is very small about 30-60 micrometers, it is invisible to the naked eye, and image quality does not fall.

이상과 같이 본 고안에 의하면 칼라액정표시소자에 사용되는 칼라필터의 각 화소에 다수개의 투과공을 천공하는 것에 의하여 광의 투과율을 높여 화면의 밝기를 향상시킬 수 있을 뿐만 아니라 종래의 것과 비교하여 동일한 화면 밝기를 얻기 위한 소비전력을 절약할 수 있게 되는 것이다.As described above, according to the present invention, by drilling a plurality of transmission holes in each pixel of the color filter used in the color liquid crystal display device, the light transmittance can be increased to improve the brightness of the screen and the same screen as compared with the conventional one. The power consumption to obtain the brightness can be saved.

Claims (1)

하유리기판(1)에 인디움산화주석막(2), 크롬막(3), 박막트랜지스터(4), 배향막(5)을 형성한 하기판(6)과 상유리기판(1')에 칼라필터(8), 인디움산화주석막(2'), 크롬막 (3') 및 배향막(5')을 형성한 상기판(7) 사이에 액정(10)을 주입하고, 편광판(11)(11')을 부착한 칼라 액정표시소자에 있어서 상기 칼라필터(8)의 적색, 녹색 및 청색 화소(8a)(8b)(8c)에 직경 30~60㎛ 의 투과공(8')을 다수개 천공하여서 구성됨을 특징으로 하는 칼라액정표시소자.On the lower glass substrate 1, a color filter was formed on the lower substrate 6 and the upper glass substrate 1 'on which the indium tin oxide film 2, the chromium film 3, the thin film transistor 4, and the alignment film 5 were formed. 8), the liquid crystal 10 is injected between the plate 7 formed with the indium tin oxide film 2 ', the chromium film 3' and the alignment film 5 ', and the polarizing plates 11 and 11'. In the color liquid crystal display device with a plurality of holes, a plurality of penetration holes 8 'having a diameter of 30 to 60 µm are drilled in the red, green, and blue pixels 8a, 8b, and 8c of the color filter 8. Color liquid crystal display element, characterized in that configured.
KR1019860007050A 1986-08-25 1986-08-25 A color lcd device KR920007615B1 (en)

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Application Number Priority Date Filing Date Title
KR1019860007050A KR920007615B1 (en) 1986-08-25 1986-08-25 A color lcd device

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Application Number Priority Date Filing Date Title
KR1019860007050A KR920007615B1 (en) 1986-08-25 1986-08-25 A color lcd device

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KR880003275A KR880003275A (en) 1988-05-16
KR920007615B1 true KR920007615B1 (en) 1992-09-08

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KR1019860007050A KR920007615B1 (en) 1986-08-25 1986-08-25 A color lcd device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101293210B1 (en) * 2010-12-15 2013-08-05 주식회사 엘지화학 Method and apparatus for forming hole of polarizing plate for display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101293210B1 (en) * 2010-12-15 2013-08-05 주식회사 엘지화학 Method and apparatus for forming hole of polarizing plate for display device

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KR880003275A (en) 1988-05-16

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