KR19990074452A - Bottom chassis of liquid crystal display - Google Patents
Bottom chassis of liquid crystal display Download PDFInfo
- Publication number
- KR19990074452A KR19990074452A KR1019980008055A KR19980008055A KR19990074452A KR 19990074452 A KR19990074452 A KR 19990074452A KR 1019980008055 A KR1019980008055 A KR 1019980008055A KR 19980008055 A KR19980008055 A KR 19980008055A KR 19990074452 A KR19990074452 A KR 19990074452A
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- KR
- South Korea
- Prior art keywords
- bottom chassis
- liquid crystal
- crystal display
- lcd panel
- mold frame
- Prior art date
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Classifications
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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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/46—Fixing elements
- G02F2201/465—Snap -fit
Abstract
액정표시장치에 가해지는 충격에 의해 바텀샤시가 LCD 패널 쪽으로 밀려들어가는 것을 방지하기 위해 바텀샤시의 소정영역에 돌출부를 형성함으로써, FPC의 접착부분이 인쇄회로기판과 LCD 패널에서 떨어지는 것을 방지하여 액정표시장치의 신뢰성을 향상시킬 수 있다.In order to prevent the bottom chassis from being pushed toward the LCD panel by the impact applied to the liquid crystal display device, a protrusion is formed in a predetermined area of the bottom chassis to prevent the adhesive portion of the FPC from falling off the printed circuit board and the LCD panel. The reliability of the device can be improved.
Description
본 발명은 액정표시장치의 바텀샤시에 관한 것으로, 더욱 상세하게는 탑샤시의 후크와 대응되도록 바텀샤시의 소정영역에 돌출부를 형성하여 바텀샤시에서 전달된 충격에 의해 FPC의 접착부분이 인쇄회로기판 또는 LCD 패널에서 떨어지는 것을 방지한 액정표시장치의 바텀샤시에 관한 것이다.The present invention relates to a bottom chassis of a liquid crystal display, and more particularly, a protrusion is formed in a predetermined area of the bottom chassis so as to correspond to a hook of a top chassis, so that an adhesive part of the FPC is formed by an impact transmitted from the bottom chassis. Or it relates to a bottom chassis of the liquid crystal display device prevented falling from the LCD panel.
최근 CRT(cathode ray tube)의 대체품으로 각광을 받고 있는 액정표시장치(Liquid Crystal Display module)는 LCD 패널 내부에 주입된 액정의 전기 광학적 성질을 이용한 것이다. 액정표시장치의 대부분을 차지하고 있는 투과형 액정표시장치는 크게 LCD 패널, 인쇄회로기판(printed circuit board), 백라이트(back light), 바텀샤시, 탑샤시등으로 구성된다.Recently, the liquid crystal display module (Liquid Crystal Display module) has been spotlighted as a replacement for cathode ray tube (CRT), which uses the electro-optic properties of the liquid crystal injected into the LCD panel. The transmissive liquid crystal display device, which occupies most of the liquid crystal display device, is largely composed of an LCD panel, a printed circuit board, a back light, a bottom chassis, and a top chassis.
여기서, 백라이트는 LCD 패널의 하부에 설치되어 LCD 패널에 쪽으로 빛을 전달하는 것으로, 상부면에 수납공간이 형성된 몰드프레임과 몰드프레임의 수납공간에 순차적으로 적층되는 반사판, 도광판, 시트류로 구성된다. 또한, LCD 패널은 액정의 전기 광학적 성질을 이용하여 정보를 표시하는 것으로, TFT 기판과 TFT 기판을 마주보도록 부착된 칼라필터 기판(25)으로 구성된다.Here, the backlight is installed at the lower part of the LCD panel to transmit light toward the LCD panel, and consists of a mold frame having an accommodating space formed on an upper surface thereof, and a reflecting plate, a light guide plate, and sheets that are sequentially stacked in the accommodating space of the mold frame. . In addition, the LCD panel displays information by using the electro-optical properties of the liquid crystal, and is composed of a color filter substrate 25 attached to face the TFT substrate and the TFT substrate.
또한, 인쇄회로기판은 LCD 패널과 전기적으로 연결되어 LCD 패널에 전기적 신호를 전달하는 것으로, LCD 패널(20)의 장변방향 일단과 단변방향 일단에 FPC에 의해 연결된다.In addition, the printed circuit board is electrically connected to the LCD panel to transmit an electrical signal to the LCD panel, and is connected to one end of the long side direction and one end of the short side direction of the LCD panel 20 by FPC.
한편, 바텀샤시는 인쇄회로기판을 지지하기 위해 몰드프레임의 하부면에 설치되는 것으로 몰드프레임과 체결된다. 또한, 탑샤시는 LCD 패널을 지지하고 바텀샤시를 완전히 고정시키기 위해 LCD 패널의 가장자리 소정영역과 몰드프레임 및 바텀샤시의 측면이 감싸지도록 설치되어 몰드프레임과 바텀샤시에 각각 체결된다.On the other hand, the bottom chassis is fastened to the mold frame to be installed on the lower surface of the mold frame to support the printed circuit board. In addition, the top chassis is installed to cover the predetermined area of the edge of the LCD panel and the sides of the mold frame and the bottom chassis so as to support the LCD panel and completely fix the bottom chassis, and are respectively fastened to the mold frame and the bottom chassis.
그러나, 액정표시장치의 신뢰성을 테스트하기 위해 이와 같은 구성을 갖는 액정표시장치의 외부에서 충격을 가할 경우 액정표시장치의 제작 공차로 인해 바텀샤시의 측면이 LCD 패널 쪽으로 밀려들어가 FPC에 직접적인 충격을 가한다. 이로 인해 FPC의 접착부분이 인쇄회로기판과 LCD 패널에서 떨어져 액정표시장치의 신뢰성을 저하시키는 문제점이 있었다.However, in order to test the reliability of the liquid crystal display device, when an impact is applied from the outside of the liquid crystal display device having such a configuration, the side chassis of the bottom chassis is pushed toward the LCD panel due to the manufacturing tolerances of the liquid crystal display device, thereby directly impacting the FPC. do. As a result, the adhesive part of the FPC is separated from the printed circuit board and the LCD panel, thereby lowering the reliability of the liquid crystal display.
따라서, 본 발명의 목적은 상기와 같은 문제점을 감안하여 안출된 것으로서, 바텀샤시의 소정영역이 외측으로 돌출되도록 돌출부를 형성하여 액정표시장치에 충격이 가해질 경우 바텀샤시의 돌출부가 탑샤시에 걸려 바텀샤시가 LCD 패널 쪽으로 밀려들어가는 것을 방지함으로서 액정표시장치의 신뢰성을 향상시키는데 있다.Accordingly, an object of the present invention has been devised in view of the above problems, and when a predetermined area of the bottom chassis protrudes outwardly, a protrusion is formed so that the bottom of the bottom chassis protrudes when the impact is applied to the liquid crystal display. It is to improve the reliability of the liquid crystal display by preventing the chassis from being pushed toward the LCD panel.
도 1은 본 발명에 의한 액정표시장치의 구조를 개략적으로 도시한 단면도이고,1 is a cross-sectional view schematically showing the structure of a liquid crystal display device according to the present invention;
도 2는 본 발명에 의한 바텀샤시의 소정영역을 개략적으로 도시한 사시도이다.2 is a perspective view schematically showing a predetermined area of a bottom chassis according to the present invention.
이와 같은 목적을 달성하기 위해서 본 발명은 몰드프레임의 상부에 놓여지고 FPC에 의해 인쇄회로기판과 전기적으로 연결된 LCD 패널과, 인쇄회로기판을 지지하기 위해 몰드프레임의 하부에 설치되며 측면 소정영역에 걸림홀이 형성된 바텀샤시와, 몰드프레임의 상부에 설치되며 걸림홈과 대응되는 내측에 후크가 형성되어 바텀샤시와 체결되는 탑샤시로 구성된 액정표시장치에 있어서, 바텀샤시가 충격에 의해 LCD 패널 쪽으로 밀려들어가는 것을 방지하기 위해 바텀샤시가 탑샤시의 하부면에 걸리도록 바텀샤시의 소정영역에 돌출부가 형성된 것을 특징으로 한다.In order to achieve the above object, the present invention is placed on the upper part of the mold frame and electrically connected to the printed circuit board by the FPC, and is installed on the lower part of the mold frame to support the printed circuit board and is caught in a predetermined area on the side. In a liquid crystal display including a bottom chassis having a hole formed therein and a top chassis installed at an upper portion of a mold frame and corresponding to a locking groove, and having a bottom chassis engaged with the bottom chassis, the bottom chassis is pushed toward the LCD panel by an impact. In order to prevent the bottom chassis from engaging the bottom surface of the top chassis is characterized in that the protrusion is formed in a predetermined area of the bottom chassis.
이하, 본 발명에 의한 액정표시장치의 바텀샤시를 첨부된 도면 도 1 및 도 2를 참조하여 설명하면 다음과 같다.Hereinafter, the bottom chassis of the liquid crystal display according to the present invention will be described with reference to FIGS. 1 and 2.
도 1에 도시된 바와 같이 액정표시장치(1)는 몰드프레임(10)에 형성된 수납공간에 램프 어셈블리(미도시)와 반사판(12)과 도광판(14)과 시트류(16)가 순차적으로 적층된다. 또한, 몰드프레임(10)의 상부에는 전기 광학적 성질을 이용하여 정보를 디스플레이하는 LCD 패널(20)이 설치되는데, LCD 패널(20)의 장변방향 일단과 단변방향 일단에는 FPC(25)에 의해 인쇄회로기판(30)이 전기적으로 연결된다. 여기서, FPC(25)의 일단은 LCD 패널(20)에 부착되고 FPC(25)의 타단은 인쇄회로기판(30)에 부착되며, 인쇄회로기판은 FPC(25)의 절곡에 의해 몰드프레임(10)의 하부면에 위치한다.As shown in FIG. 1, the liquid crystal display device 1 sequentially stacks a lamp assembly (not shown), a reflector 12, a light guide plate 14, and sheets 16 in a storage space formed in the mold frame 10. do. In addition, the upper part of the mold frame 10 is provided with an LCD panel 20 for displaying information by using an electro-optic property, the long side and one short side of the LCD panel 20 is printed by the FPC (25) The circuit board 30 is electrically connected. Here, one end of the FPC 25 is attached to the LCD panel 20, the other end of the FPC 25 is attached to the printed circuit board 30, the printed circuit board is bent by the FPC 25 mold frame 10 ) Is located on the lower surface of the
한편, 몰드프레임(10)의 하부면에는 인쇄회로기판(30)을 지지하기 위해 바텀샤시(40)가 설치되어 몰드프레임(10)의 측면, 예를 들어 장변방향 양측면과 체결된다. 여기서, 바텀샤시(40)의 다른 측면, 예컨대 단변방향의 중앙을 기준으로 중앙부분과 소정간격 이격된 영역에 도 2에 도시된 바와 같이 2개의 걸림홀(44)이 상호 대칭되도록 형성되고 걸림홀(44)의 하단에는 돌출부(42)가 형성된다.On the other hand, the bottom chassis 40 is installed on the bottom surface of the mold frame 10 to support the printed circuit board 30 is fastened to the side of the mold frame 10, for example, both sides in the long side direction. Here, as shown in FIG. 2, two locking holes 44 are formed to be symmetrical with respect to the other side of the bottom chassis 40, for example, in a region spaced a predetermined distance from the center of the short side direction. Protrusions 42 are formed at the lower end of 44.
또한, 몰드프레임(10)의 상부면에는 LCD 패널(20)의 가장자리 소정영역과 몰드프레임(10) 및 바텀샤시(40)의 측면을 감싸도록 탑샤시(50)가 체결된다. 여기서, 걸림홀(44)과 대응되는 탑샤시(50)의 내측면 소정영역에 걸림홀(44)에 끼워지는 후크(52)가 형성된다.In addition, the top chassis 50 is fastened to the upper surface of the mold frame 10 so as to surround the predetermined region of the edge of the LCD panel 20 and the side surfaces of the mold frame 10 and the bottom chassis 40. Here, the hook 52 is fitted to the locking hole 44 in the predetermined region of the inner surface of the top chassis 50 corresponding to the locking hole 44 is formed.
이와 같이 구성된 LCD 모듈의 조립과정을 설명하면 다음과 같다.The assembly process of the LCD module configured as described above is as follows.
먼저, 몰드프레임(10)의 수납공간에 램프 어셈블리, 반사판(12), 도광판(14), 시트류(16)를 차례대로 적층시키고, FPC(25)에 의해 인쇄회로기판(30)과 전기적으로 연결된 LCD 패널(20)을 몰드프레임(10)의 상부에 올려놓는다. 이후, FPC(25)를 절곡시켜 인쇄회로기판(30)을 몰드프레임(10)의 하부에 위치시킨다.First, the lamp assembly, the reflecting plate 12, the light guide plate 14, and the sheets 16 are sequentially stacked in the storage space of the mold frame 10, and electrically connected to the printed circuit board 30 by the FPC 25. The connected LCD panel 20 is placed on the mold frame 10. Thereafter, the FPC 25 is bent to place the printed circuit board 30 under the mold frame 10.
이와 같이 몰드프레임(10)의 하부면에 인쇄회로기판(30)이 놓이면, 인쇄회로기판(30)을 지지하고 전자파를 차폐시키기 위해 바텀샤시(40)를 몰드프레임(10)의 하부에서 체결시킨다. 이어, LCD 패널(20)이 몰드프레임(10)에서 이탈되는 것을 방지하기 위해 몰드프레임(10)의 상부에서 탑샤시(50)를 체결하는데, 탑샤시(50)의 측면, 예컨대 장변방향 양측면은 몰드프레임(10)에 체결되고 탑샤시(50)의 다른 측면, 예컨대 단변방향 양측면은 바텀샤시(40)에 체결된다. 이때, 탑샤시(50)의 단변방향 양측면에 형성된 후크(52)가 바텀샤시(40)의 결합홀(44)에 끼워져 몰드프레임(10)과 바텀샤시(40)가 상호 결합된다.As such, when the printed circuit board 30 is placed on the bottom surface of the mold frame 10, the bottom chassis 40 is fastened at the bottom of the mold frame 10 to support the printed circuit board 30 and shield electromagnetic waves. . Subsequently, in order to prevent the LCD panel 20 from being separated from the mold frame 10, the top chassis 50 is fastened to the upper side of the mold frame 10. It is fastened to the mold frame 10 and the other side of the top chassis 50, for example, both sides in the short side direction is fastened to the bottom chassis 40. At this time, the hook 52 formed on both side surfaces of the top chassis 50 in the short side direction is fitted into the coupling hole 44 of the bottom chassis 40 so that the mold frame 10 and the bottom chassis 40 are coupled to each other.
상기와 같은 과정을 통해 액정표시장치(1)의 조립이 완료되면, 액정표시장치(1)의 신뢰성을 테스트하기 위해서 액정표시장치(1) 외부에서 충격 및 진동을 가한다. 이때, 바텀샤시(40)의 결합홀(44) 하부면에 형성된 돌출부(42)가 탑샤시(50)의 하부면에 의해 걸려 바텀샤시(40)가 LCD 패널(20) 쪽으로 밀려들어가지 못하므로 FPC(25)에 직접적인 충격이 가해지는 것을 방지할 수 있다.When the assembly of the liquid crystal display device 1 is completed through the above process, shock and vibration are applied to the outside of the liquid crystal display device 1 in order to test the reliability of the liquid crystal display device 1. At this time, since the protrusion 42 formed in the bottom surface of the coupling hole 44 of the bottom chassis 40 is caught by the bottom surface of the top chassis 50, the bottom chassis 40 cannot be pushed toward the LCD panel 20. Direct impact on the FPC 25 can be prevented.
이상에서 설명한 바와 같이 본 발명은 액정표시장치에 가해지는 충격에 의해 바텀샤시가 LCD 패널 쪽으로 밀려들어가는 것을 방지하기 위해 바텀샤시의 소정영역에 돌출부를 형성함으로써, FPC의 접착부분이 인쇄회로기판과 LCD 패널에서 떨어지는 것을 방지하여 액정표시장치의 신뢰성을 향상시킬 수 있는 효과가 있다.As described above, the present invention forms a protrusion in a predetermined area of the bottom chassis to prevent the bottom chassis from being pushed toward the LCD panel by the impact applied to the liquid crystal display device, whereby the adhesive portion of the FPC is formed by the printed circuit board and the LCD. Preventing falling from the panel has the effect of improving the reliability of the liquid crystal display device.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980008055A KR100505010B1 (en) | 1998-03-11 | 1998-03-11 | LCD Display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980008055A KR100505010B1 (en) | 1998-03-11 | 1998-03-11 | LCD Display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990074452A true KR19990074452A (en) | 1999-10-05 |
| KR100505010B1 KR100505010B1 (en) | 2005-10-12 |
Family
ID=37305243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980008055A KR100505010B1 (en) | 1998-03-11 | 1998-03-11 | LCD Display |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100505010B1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0451595A (en) * | 1990-06-20 | 1992-02-20 | Hitachi Ltd | Mounting system for flat panel display |
| JPH0527722U (en) * | 1991-09-18 | 1993-04-09 | 旭光学工業株式会社 | Display panel mounting structure |
| JPH09146466A (en) * | 1995-11-27 | 1997-06-06 | Sanyo Electric Co Ltd | Display module |
| JPH09197383A (en) * | 1996-01-22 | 1997-07-31 | Casio Comput Co Ltd | Liquid crystal display device |
| JPH09218394A (en) * | 1996-02-09 | 1997-08-19 | Asahi Optical Co Ltd | Liquid crystal display plate fixture |
-
1998
- 1998-03-11 KR KR1019980008055A patent/KR100505010B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100505010B1 (en) | 2005-10-12 |
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