KR20040012195A - Back light unit of liquid crystal display - Google Patents

Back light unit of liquid crystal display Download PDF

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Publication number
KR20040012195A
KR20040012195A KR1020020045637A KR20020045637A KR20040012195A KR 20040012195 A KR20040012195 A KR 20040012195A KR 1020020045637 A KR1020020045637 A KR 1020020045637A KR 20020045637 A KR20020045637 A KR 20020045637A KR 20040012195 A KR20040012195 A KR 20040012195A
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KR
South Korea
Prior art keywords
liquid crystal
optical sheet
mold frame
crystal display
sheet
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KR1020020045637A
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Korean (ko)
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KR100884660B1 (en
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김종대
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비오이 하이디스 테크놀로지 주식회사
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Priority to KR1020020045637A priority Critical patent/KR100884660B1/en
Publication of KR20040012195A publication Critical patent/KR20040012195A/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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: A back light unit of a liquid crystal display is provided to easily fix optical sheets to a mold frame so as to prevent optical sheets from being moved in the back light unit. CONSTITUTION: A back light unit of a liquid crystal display includes a plurality of optical sheets laminated, a mold frame to which the optical sheets are fixed, and the first catch(25) that is located at the edge of the side of each optical sheet and has a through-hole(21) formed at the center. The back light unit further includes the second catch formed at the mold frame and inserted into the through-hole, a slit line(22) that is formed at the first catch of the uppermost optical sheet and divides the first catch into two part, and recesses(23) that are formed at both sides of the first catch.

Description

액정표시장치의 백라이트 유닛{back light unit of liquid crystal display}Back light unit of liquid crystal display

본 발명은 액정표시장치에 관한 것으로, 보다 상세하게는 백라이트 유닛 내의 광학용 시트의 유동을 방지할 수 있는 액정표시장치의 백라이트 유닛에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a backlight unit of a liquid crystal display device capable of preventing the flow of the optical sheet in the backlight unit.

모니터용의 일반적인 엘시디 모듈은 CRT와는 달리 스스로 빛을 내는 소자가 아니므로 액정 화면의 배면에 화상을 시각적으로 표현하기 위한 광원이 필요하다. 이러한 엘디시 모듈의 광원으로서는 현재 형광 램프를 사용하는 백라이트 유닛을 사용한다.Unlike a CRT, a general LCD module for a monitor is not a device that emits light by itself, and thus a light source for visually representing an image on the back of the LCD screen is required. As a light source of such an LED module, a backlight unit using a fluorescent lamp is used.

도 1은 통상적인 액정표시장치의 백라이트 유닛을 도시한 도면이다.1 is a view illustrating a backlight unit of a conventional liquid crystal display device.

상기 백라이트 유닛은, 도 1에 도시된 바와 같이, 광원으로서 형광 램프(1)를 사용하며, 상기 형광 램프(1)로 부터 발생된 빛을 도광판(2)을 통해 전달하여 액정 소자의 직하에서 액정 소자면에 투사하게 된다.As shown in FIG. 1, the backlight unit uses a fluorescent lamp 1 as a light source, and transmits the light generated from the fluorescent lamp 1 through the light guide plate 2 so that the liquid crystal is directly under the liquid crystal element. Projected onto the device surface.

이때, 상기 형광 램프(1)에서 발생된 빛을 도광판(2)에 보다 많은 량을 투사하기 위해서는 형광 램프(1) 주위에 램프 반사체(reflector)(3)를 설치하고 도광판(2)의 하단에 반사판(4)을 설치하여 빛을 액정소자면으로 반사시키며, 또한, 도광판(2)의 상면에는 확산 시트(diffuser sheet)(5), 프리즘 시트(prism sheet)(6) 및 보호 시트(protector sheet)(7) 순으로 광학 시트(A)를 배치시킨다.At this time, in order to project more light generated by the fluorescent lamp 1 to the light guide plate 2, a lamp reflector 3 is installed around the fluorescent lamp 1 and placed at the bottom of the light guide plate 2. A reflecting plate 4 is provided to reflect light onto the liquid crystal element surface, and a diffuser sheet 5, a prism sheet 6, and a protector sheet are provided on the upper surface of the light guide plate 2. (7), the optical sheet A is arranged.

상기의 구성 요소는 몰드 프레임(8)에 탑 다운 방식으로 적층되어 조립되며최하부에 금속 재질의 백커버(back cover)(9)가 배치된다.The above components are stacked and assembled on the mold frame 8 in a top-down manner, and a metal back cover 9 is disposed at the bottom thereof.

또한, 이러한 전 구성 요소들의 외곽에는 베즐(bezel)(11)이 감싸고 있다.In addition, a bezel 11 is wrapped around the entire components.

도 2는 종래 기술에 따른 액정표시장치의 백라이트 유닛에 있어서, 확산 시트의 사시도이고, 도 3은 도 2의 a부분을 확대한 평면도이다.2 is a perspective view of a diffusion sheet in a backlight unit of a liquid crystal display according to the related art, and FIG. 3 is an enlarged plan view of a portion of FIG. 2.

상기 구조에서, 광학 시트(A)인 확산 시트, 프리즘 시트, 보호 시트는, 도 2 및 도 3에 도시된 바와 같이, 각각 양측 가장자리 부분에 걸림부(20)가 다수 개 설계된다. 상기 걸림부(20)는 별도의 금형 기구를 이요하여 제작하며, 상기 제작된 걸림부(20)는 광학 시트(A)의 양측 가장 자리 부분에 부착된다.In the above structure, as the optical sheet A, the diffusion sheet, the prism sheet, and the protective sheet, as shown in Figs. 2 and 3, a plurality of engaging portions 20 are designed at both edge portions, respectively. The locking portion 20 is manufactured by using a separate mold mechanism, and the produced locking portion 20 is attached to both edge portions of the optical sheet A.

상기 걸림부(20)의 역할은 백라이트 어셈블러리 상의 광학 시트(A)를 고정시키어 광학 시트의 유동을 방지하고, 또한 이물 유입을 방지하는 것이다.The role of the locking part 20 is to fix the optical sheet A on the backlight assembly to prevent the flow of the optical sheet, and also prevent the inflow of foreign matter.

그러나, 종래의 기술에서는 상기 광학 시트의 양측 가장자리 부분에 클립을 형성하는 데 있어서, 상기 클립 및 클립을 형성을 위한 별도의 기구가 필요함에 따라 생산 단가가 상승하고, 상기 클립은 금형의 제작 정도, 작업자의 숙련도에 따라 많은 차이가 발생하므로 별도의 관리가 필요하며, 또한 작업 중 이물이 발생될 경우 백라이트 어셈블러리에 불량이 초래되는 문제점이 있었다.However, in the conventional art, in forming clips at both edge portions of the optical sheet, production costs increase as the clips and separate mechanisms for forming the clips are increased, and the clips are manufactured in a mold, Since many differences occur according to the skill of the operator, separate management is required, and when a foreign object is generated during the operation, there is a problem that a defect occurs in the backlight assembly.

이에 본 발명은 상기 종래의 문제점을 해결하기 위해 안출된 것으로, 광학 시트를 고정시키는 데이 있어서, 별도의 금형 작업 또는 금형 기구를 없애어 불필요한 생산 비용을 줄이고 불량률을 최소화할 수 있는 액정표시장치의 백라이트 유닛을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems, and in the day of fixing the optical sheet, by eliminating a separate mold operation or mold mechanism, the backlight of the liquid crystal display device can reduce the unnecessary production cost and minimize the defective rate The purpose is to provide a unit.

도 1은 통상적인 액정표시장치의 백라이트 유닛을 도시한 도면.1 is a view showing a backlight unit of a conventional liquid crystal display device.

도 2는 종래 기술에 따른 액정표시장치의 백라이트 유닛에 있어서, 확산 시트의 사시도.2 is a perspective view of a diffusion sheet in a backlight unit of a liquid crystal display device according to the prior art;

도 3은 도 2의 a 부분을 확대한 평면도.3 is an enlarged plan view of a portion of FIG. 2;

도 4는 본 발명에 따른 액정표시장치의 백라이트 유닛에 있어서, 확산 시트의 사시도.4 is a perspective view of a diffusion sheet in a backlight unit of a liquid crystal display according to the present invention;

도 5는 도 4의 b부분을 확대한 평면도.5 is an enlarged plan view of a portion b of FIG. 4;

도 6a 내지 도 6c는 본 발명에 따른 액정표시장치의 백라이트 유닛에서, 몰드 프레임에 확산 시트가 고정되는 과정을 보인 도면.6A to 6C illustrate a process of fixing a diffusion sheet to a mold frame in a backlight unit of a liquid crystal display according to the present invention.

도 7은 몰드 프레임에서 제 2걸림부가 형성된 면이 경사진 형상을 가진 것을 보인 도면7 is a view showing that the surface formed with the second locking portion in the mold frame has an inclined shape

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

21. 관통홀 22. 슬릿 라인21.Through Hole 22.Slit Line

23. 홈 25. 제 1걸림부23. Home 25. First catch

108. 몰드 프레임 109. 제 2걸림부108. Mold frame 109. Second catching part

B. 확산 시트B. Diffusion Sheet

상기 목적을 달성하기 위한 본 발명의 액정표시장치의 백라이트 유닛은 다수 적층된 광학 시트와, 광학 시트가 고정되는 몰드 프레임과, 광학 시트의 측면 가장자리 부분에 배치되며 중심 부분에 관통홀이 형성된 제 1걸림부와, 몰드 프레임에 형성되며 관통홀에 삽입되는 제 2걸림부와, 광학 시트 중 최상단 시트의 제 1걸림부에 형성되며 제 1걸림부를 이분시키는 슬릿 라인과, 광학 시트의 제 1걸림부 양측 부분에 형성되며 제 1걸림부가 이분되는 공간을 확보하기 위한 홈을 포함한 것을 특징으로 한다.The backlight unit of the liquid crystal display device of the present invention for achieving the above object is a first stacked optical sheet, a mold frame to which the optical sheet is fixed, a first hole disposed in the side edge portion of the optical sheet and the through hole formed in the center portion A catching portion, a second catching portion formed in the mold frame and inserted into the through hole, a slit line formed on the first catching portion of the uppermost sheet of the optical sheet and dividing the first catching portion, and a first catching portion of the optical sheet It is formed on both sides and characterized in that it comprises a groove for securing a space for dividing the first locking portion.

상기 몰드 프레임의 제 2걸림부가 형성된 면은 경사진 형상을 갖는 것이 바람직하다.It is preferable that the surface on which the second locking portion of the mold frame is formed has an inclined shape.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 액정표시장치의 백라이트 유닛에 있어서, 확산 시트의 사시도이다. 또한, 도 5는 도 4의 b부분을 확대한 평면도이다.4 is a perspective view of a diffusion sheet in a backlight unit of a liquid crystal display according to the present invention. 5 is an enlarged plan view of a portion b of FIG. 4.

본 발명에 따른 액정표시장치의 백라이트 유닛은, 도 4 및 도 5에 도시된 바와 같이, 다수 적층된 광학 시트(B)와, 광학 시트(B)가 고정되는 몰드 프레임(108)과, 광학 시트(B)의 측면 가장자리 부분에 배치되며 중심 부분에 관통홀(21)이 형성된 제 1걸림부(25)와, 몰드 프레임(108)에 형성되며 관통홀(21)에 삽입되는 제 2걸림부(109)와, 광학 시트(B) 중 최상단 시트의 제 1걸림부(25))에 형성되며 제 1걸림부(25)를 이분시키는 슬릿 라인(22)과, 광학 시트(B)의 제 1걸림부(25) 양측부분에 형성되며 제 1걸림부(25)가 이분되는 공간을 확보하기 위한 홈(23)을 포함하여 구성된다.As shown in FIGS. 4 and 5, the backlight unit of the liquid crystal display according to the present invention includes a plurality of stacked optical sheets B, a mold frame 108 on which the optical sheets B are fixed, and an optical sheet. A first locking portion 25 disposed at the side edge portion of (B) and having a through hole 21 formed in the center portion thereof, and a second locking portion formed in the mold frame 108 and inserted into the through hole 21 ( 109, a slit line 22 formed on the first catching portion 25 of the uppermost sheet of the optical sheet B, and dividing the first catching portion 25, and a first catching of the optical sheet B. The portion 25 is formed on both sides and comprises a groove 23 for securing a space in which the first locking portion 25 is divided.

도 6a 내지 도 6c는 본 발명에 따른 액정표시장치의 백라이트 유닛에서, 몰드 프레임에 확산 시트가 고정되는 과정을 보인 도면이다.6A to 6C illustrate a process of fixing a diffusion sheet to a mold frame in a backlight unit of a liquid crystal display according to the present invention.

또한, 도 7은 몰드 프레임에서 제 2걸림부가 형성된 면이 경사진 형상을 가진 것을 보인 도면이다In addition, Figure 7 is a view showing that the surface formed with the second locking portion in the mold frame has an inclined shape.

상기 구성된 액정표시장치의 백라이트 유닛에서 몰드 프레임에 광학 시트가 고정되는 과정을 도 6a 내지 도 6c를 참조하여 알아보면 다음과 같다.The process of fixing the optical sheet to the mold frame in the backlight unit of the above-described liquid crystal display will be described with reference to FIGS. 6A to 6C.

먼저, 도 6a에 도시된 바와 같이, 광학 시트(B)를 몰드 프레임(108) 방향으로 공급한다. 이때, 상기 광학 시트(B)는 확산 시트, 프리즘 시트 및 보호 시트 순으로 3장 또는 그 이상의 개수를 가진 시트들이 적층된 구조를 가진다.First, as shown in FIG. 6A, the optical sheet B is supplied toward the mold frame 108. In this case, the optical sheet B has a structure in which sheets having three or more sheets are stacked in order of a diffusion sheet, a prism sheet, and a protective sheet.

또한, 도 7에 도시된 바와 같이, 상기 몰드 프레임(108)은 제 2걸림부(109)가 형성된 면이 경사진 형상(도면부호 108a 참조)을 갖도록 제작된다.In addition, as shown in FIG. 7, the mold frame 108 is manufactured such that the surface on which the second catching portion 109 is formed has an inclined shape (see reference numeral 108a).

이어, 도 6b에 도시된 바와 같이, 슬릿 라인(21)을 양방향으로 벌어지면서 상기 광학 시트(B)는 몰드 프레임의 제 2걸림부(109)의 경사면을 타고 이동된다. 이때, 상기 슬릿 라인(21)이 벌어지면서 이분된 제 1걸림부(25)는 상기 홈(23)에 의해 어느 정도의 공간이 확보된다.Subsequently, as shown in FIG. 6B, the optical sheet B is moved on the inclined surface of the second locking portion 109 of the mold frame while the slit line 21 is unfolded in both directions. At this time, the first catching portion 25 divided into two parts as the slit line 21 is opened is secured to some extent by the groove 23.

그런 다음, 도 6c에 도시된 바와 같이, 제 2걸림부(109)의 경사면을 타고 이동하던 광학 시트(B)가 제 2걸림부(109)의 끝단에 걸치면서 슬릿 라인(22)이 닫히게 되고 제 2걸림부(109) 아래로 이동하면서 광학 시트(B)는 몰드 프레임(108)에걸려 고정된다.Then, as shown in FIG. 6C, the slit line 22 is closed while the optical sheet B moving on the inclined surface of the second catching portion 109 hangs over the end of the second catching portion 109. The optical sheet B is locked by the mold frame 108 while moving below the second locking portion 109.

본 발명에 따르면, 별도의 금형을 부착시키지 않고 확산 시트에 자체 형상을 개선시킨 구조를 가짐으로써, 생산 비용이 감소된다. 이때, 상기 확산 시트는 상기 개선된 형상을 가질 수 있도록 치수를 고려하여 제작되어야 한다.According to the present invention, the production cost is reduced by having a structure in which the shape of the diffusion sheet is improved without attaching a separate mold. In this case, the diffusion sheet should be manufactured in consideration of dimensions to have the improved shape.

이상에서와 같이, 본 발명은 별도의 금형 제작 및 부착 공정을 거치지 않고 광학 시트 자체에 홈, 관통홀, 제 1걸림부 및 슬릿 라인을 형성함으로써, 몰드 프레임에 광학 시트를 손쉽게 고정시킬 수 있다.As described above, the present invention can easily fix the optical sheet to the mold frame by forming a groove, a through hole, a first catching part and a slit line in the optical sheet itself without undergoing a separate mold fabrication and attachment process.

따라서, 본 발명은 별도의 금형 기구가 불필요함에 따라, 생산 비용이 감소되며, 자체 불량률 또한 감소된다.Therefore, the present invention eliminates the need for a separate mold mechanism, thereby reducing the production cost and reducing the self failure rate.

기타, 본 발명은 그 요지를 일탈하지 않는 범위에서 다양하게 변경하여 실시할 수 있다.In addition, this invention can be implemented in various changes within the range which does not deviate from the summary.

Claims (2)

다수 적층된 광학 시트와,Multiple laminated optical sheets, 상기 광학 시트가 고정되는 몰드 프레임과,A mold frame to which the optical sheet is fixed; 상기 광학 시트의 측면 가장자리 부분에 배치되며, 중심 부분에 관통홀이 형성된 제 1걸림부와,A first locking portion disposed at a side edge portion of the optical sheet and having a through hole formed at a center portion thereof; 상기 몰드 프레임에 형성되며, 상기 관통홀에 삽입되는 제 2걸림부와,A second catching part formed in the mold frame and inserted into the through hole; 상기 광학 시트 중 최상단 시트의 제 1걸림부에 형성되며, 상기 제 1걸림부를 이분시키는 슬릿 라인과,A slit line formed at a first catching portion of the uppermost sheet of the optical sheet, and dividing the first catching portion; 상기 광학 시트의 제 1걸림부 양측 부분에 형성되며, 상기 제 1걸림부가 이분되는 공간을 확보하기 위한 홈을 포함하여 구성되는 것을 특징으로 하는 액정표시장치의 백라이트 유닛.And a groove formed on both sides of the first catching part of the optical sheet, and including a groove for securing a space in which the first catching part is divided into two parts. 제 1항에 있어서, 상기 몰드 프레임의 제 2걸림부가 형성된 면은 경사진 형상을 가진 것을 특징으로 하는 액정표시장치의 백라이트 유닛.The backlight unit of claim 1, wherein a surface on which the second catching part of the mold frame is formed has an inclined shape.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007035013A1 (en) * 2005-09-22 2007-03-29 Heesung Electronics Ltd. Hole structure for fixing a sheet in backlight assembly
KR20170133603A (en) * 2016-05-26 2017-12-06 엘지디스플레이 주식회사 Display device
KR20180013555A (en) * 2016-07-29 2018-02-07 엘지디스플레이 주식회사 Liquid crystal display device
USRE46781E1 (en) 2009-11-12 2018-04-10 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE46795E1 (en) 2009-11-12 2018-04-17 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE47135E1 (en) 2010-02-21 2018-11-20 Lg Electronics Inc. Backlight unit and liquid crystal display including the same

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CN107219686A (en) * 2017-08-01 2017-09-29 业成科技（成都）有限公司 A kind of backlight module and display device

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KR100576121B1 (en) * 1999-11-02 2006-05-03 삼성전자주식회사 Backlight assembly
KR100654225B1 (en) * 2000-11-24 2006-12-05 삼성전자주식회사 Liquid crystal display having an improved fixing members of optical sheets

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007035013A1 (en) * 2005-09-22 2007-03-29 Heesung Electronics Ltd. Hole structure for fixing a sheet in backlight assembly
USRE46781E1 (en) 2009-11-12 2018-04-10 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE46795E1 (en) 2009-11-12 2018-04-17 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE48779E1 (en) 2009-11-12 2021-10-19 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE47135E1 (en) 2010-02-21 2018-11-20 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE47541E1 (en) 2010-02-21 2019-07-30 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
USRE49403E1 (en) 2010-02-21 2023-01-31 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
KR20170133603A (en) * 2016-05-26 2017-12-06 엘지디스플레이 주식회사 Display device
KR20180013555A (en) * 2016-07-29 2018-02-07 엘지디스플레이 주식회사 Liquid crystal display device

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