WO2005093503A1 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- WO2005093503A1 WO2005093503A1 PCT/JP2005/004256 JP2005004256W WO2005093503A1 WO 2005093503 A1 WO2005093503 A1 WO 2005093503A1 JP 2005004256 W JP2005004256 W JP 2005004256W WO 2005093503 A1 WO2005093503 A1 WO 2005093503A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- crystal display
- housing
- display device
- lead wire
- Prior art date
Links
Classifications
-
- 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
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- 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
-
- 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
- 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
- G02F1/133612—Electrical details
Definitions
- the present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device provided with a lead wire fixing portion for fixing a lead wire from which a housing force is derived.
- Liquid crystal display devices have characteristics such as low power consumption, light weight, and space saving compared to other display devices. Therefore, liquid crystal display devices such as personal computers, car navigation systems, televisions, and various OA devices are used. Widely used as a display device.
- these liquid crystal display devices are usually provided with an illumination unit having various light sources, and the illumination unit emits light from behind a liquid crystal panel.
- This lighting unit is roughly classified into two different types according to the mounting position of the light source, one of which is an edge light type in which the light source is arranged along the side end surface of the light guide plate, and the other is an edge light type.
- It is a direct type in which a light source is arranged on the back surface of a light guide plate.
- the edge-light type is widely used in devices that prioritize thinness because of its thinness and excellent brightness uniformity on the light-emitting surface.
- the direct type can be provided with a large light source, so it is used for equipment that requires high brightness.
- a power supply lead wire is led out of the liquid crystal display device to supply power to the light source.
- the lead wire is pulled by an external force, the power is applied. Is transmitted directly to the connection between the terminal of the light source and the lead wire, which may cause disconnection or poor contact.
- a lead wire fixing means is provided near the lead wire outlet of the main body case.
- a holding member is usually provided at a corner of a frame-shaped support frame, and these holding members are provided.
- the lead wire is fixed using a holding member (for example, see Patent Document 1).
- FIG. 5 is a perspective view showing a liquid crystal display device described in Patent Document 1 below, which is held at each corner of a frame-shaped support frame 113 supporting a light guide plate 121.
- a member 13 la- 13 Id is provided, and the liquid crystal display panel 111, the light guide plate 121 and the light source 122 are positioned by the holding members 13 la- 13 Id, and two of the holding members 131 b and 1
- the lead wire 122a can be fixed at 31c.
- FIG. 6 is an enlarged perspective view in which a lead wire fixing portion of the liquid crystal display device described in Patent Document 2 below is enlarged.
- This lead wire fixing portion 150 is formed on the intermediate frame 152 by exposing the intermediate frame 152 from the metal frame 151 near the insertion opening of the light source portion, and the fixing portion 150 is formed with the groove 153 and the lead wire support. And the unit 154.
- the lead wire 155 which also has an increased light source section force, is bent 90 degrees to the side surface of the intermediate frame 152, disposed at one end of the groove 153, and stored along the bending point in the groove 153. Then, the force at the other end of the groove 153 can also be taken out of the device!
- Patent document 1 JP-A-5-66390 (FIG. 2, paragraph [0007])
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-223110 (FIG. 2, paragraphs [0022]-[0025])
- the lead wire can be easily attached and detached when attaching and detaching the light source, and problems such as disconnection can be prevented.
- the liquid crystal display device described in Patent Document 1 uses a plurality of fixing members separate from the support frame as lead wire fixing portions, some of which are also used as the lead wire fixing portions. As a result, the number of parts is increased, and assembling and fixing the lead wires are troublesome. Also, in the liquid crystal display device described in Patent Document 2, since the lead wire fixing portion is formed in the intermediate frame, the metal frame must be cut in accordance with the shape of the intermediate frame. Processing is troublesome.
- An object of the present invention is to provide a liquid crystal display device that can easily fix a lead wire through which a lead and a mosquito are led out.
- a liquid crystal display device comprising: a liquid crystal display panel; and an illumination unit that irradiates the liquid crystal display panel.
- the lighting unit includes a housing having a rectangular bottom wall surface and a cut-and-raised piece formed by cutting a part of the bottom wall surface and projecting to the back at a side peripheral edge thereof, and an illumination member is housed in the housing.
- a frame-shaped intermediate frame having a display window at a central portion for fixing the lighting member, wherein the intermediate frame is formed at a position corresponding to the cut and raised piece at an opening formed when the cut and raised piece is cut and raised.
- a locking piece to be inserted is provided, and a gap formed between the cut-and-raised piece and the locking piece when the intermediate frame is fixed to the housing forms a lead wire from which the illumination member force is also derived. Specially, it is a lead wire fixing part for pinching and fixing. To.
- the invention according to claim 2 of the present application relates to the liquid crystal display device according to claim 1, wherein the lead wire fixing portion is located near a position where the lead wire is led out of the lighting unit. It is characterized in that it is provided on the side peripheral edge portion.
- the invention according to claim 3 of the present application relates to the liquid crystal display device according to claim 1, wherein the housing and the housing are formed of a thin sheet metal, and the intermediate frame is formed of a synthetic resin material. It is characterized by having.
- the invention according to claim 4 of the present application relates to the liquid crystal display device according to claim 1, wherein the intermediate frame and the housing are provided with locking means, respectively, and are coupled to each other. It is characterized by.
- the invention according to claim 5 of the present application relates to the liquid crystal display device according to claim 1, wherein the intermediate frame and the housing are provided with locking means, respectively, and are coupled to each other. It is characterized by.
- the invention according to claim 6 of the present application relates to the liquid crystal display device according to claim 1, wherein the lead wire fixing portion is located near a position where the lead wire is led out of the lighting unit.
- the intermediate frame and the housing are provided with locking means, respectively, and are coupled to each other.
- the invention according to claim 7 of the present application relates to the liquid crystal display device according to claim 1, wherein the housing and the housing are formed of a thin sheet metal, and the intermediate frame is formed of a synthetic resin material.
- the intermediate frame and the housing are provided with locking means, respectively, and are coupled to each other.
- the invention according to claim 8 of the present application relates to the liquid crystal display device according to claim 1, wherein the lead wire fixing portion is located near a position where the lead wire is led out from the lighting unit.
- the housing is formed of a thin sheet metal
- the intermediate frame is formed of a synthetic resin material
- the intermediate frame and the housing are provided with locking means, respectively, and are connected to each other. The feature is that.
- the lead wire can be fixed by a simple processing of a part of the intermediate frame and the housing of the lighting unit. That is, since the lead wire can be fixed by the locking piece of the intermediate frame and the cut-and-raised piece of the housing, it is not necessary to use a separate fixing member as in the prior art. Also, the intermediate frame is formed into a complicated shape. There is no need.
- the lead wire fixing portion without increasing the number of parts and without using an intermediate frame having a complicated shape can be formed by simple processing of the intermediate frame and a part of the housing.
- the lead wire fixing portion can be formed when the intermediate frame is mounted on the housing, the lead wire fixing portion can be formed without performing special assembling work or the like.
- a lead wire may be provided when the intermediate frame is mounted on the housing.
- the fixing part can be formed, and the movement of the fixing part of the lead wire can be prevented by the coupling between the intermediate frame and the housing by the locking means.
- FIG. 1 is a rear perspective view showing a liquid crystal display device according to one embodiment of the present invention
- FIG. 2 is an exploded perspective view showing the liquid crystal display device of FIG. 1 in an exploded manner.
- FIG. 5 is a perspective view showing a liquid crystal display device described in Patent Document 1,
- FIG. 1 is a rear perspective view showing a liquid crystal display device according to one embodiment of the present invention
- FIG. 2 is an exploded perspective view showing the liquid crystal display device shown in FIG. 1 in an exploded manner
- FIG. FIG. 4 is an enlarged cross-sectional view of a lead wire fixing portion of the liquid crystal display device.
- the circuit board, the liquid crystal display panel, the back cover, and the outer frame are removed, and only the lighting unit is shown.
- the liquid crystal display device 1 of the present invention includes a lighting unit 10 (see FIG. 2), a liquid crystal display panel LP (see FIG. 4 described later), an outer frame 30, and a back cover 17. Is composed of
- the same one as a well-known liquid crystal display panel is used, and the outer frame 30 is formed from a frame side 30-30 for integrally fixing the lighting unit 10 and the liquid crystal display panel LP.
- the rear cover 17 is a protective cover for protecting a circuit board located on the rear surface of the housing.
- the lighting unit 10 includes a housing 11, a lighting member UT (see FIG. 4 described later) housed in the housing 11, and a lighting unit UT provided on the lighting member UT.
- a frame-shaped intermediate frame 20 for fixing the component UT is provided.
- a circuit board (not shown) on which the liquid crystal drive circuit elements are mounted is mounted on the back of the housing 11, and this circuit board is covered with a back cover 17!
- the housing 11 includes a rectangular bottom wall 12, and side walls 13-13 that are bent from the outer periphery of the bottom wall and stand upright and have a predetermined height. Open bottom
- Each side wall 13—13 is a housing 1
- a predetermined gap 13 is formed at each corner of 1 and the lead wire 4 is led out from this gap. Also
- the housing 11 is formed in a size that can accommodate a lighting member UT described later.
- the bottom wall 12 of the housing 11 is formed with a plurality of projections 12, 12 and a plurality of cut-up pieces 14, 14, which protrude to the back, at locations near the outer peripheral edge of the bottom wall.
- each projection 12, 12 is at the same height.
- the plurality of raised pieces 14, 14 is at the same height.
- the intermediate frame 20 is formed to have a size into which a locking piece 23 of the later-described intermediate frame 20 is inserted. This opening 14
- the size of the opening 14 can be used as it is by using the cutout formed when forming the cut-and-raised piece 14 or by making this cutout larger.
- a plurality of locking openings 15 are formed in each of the short side walls 13, 13 of the housing 11.
- the intermediate frame 20 covers the upper opening of the housing 11, and has side walls 13-13 of the housing 11.
- the intermediate frame 20 is composed of long and short frame sides 20-20, and the frame sides 20-20 are all narrow.
- the frame 20-20 is formed in a frame shape so that a substantially rectangular table is formed in the center.
- a viewing window is formed. Of these frame sides 20 20, the opposite short sides 20 and 20
- a locking claw 22 is formed, and the locking claw 22 is formed on the side surface of each side wall 21, 21.
- the lighting member UT includes a reflection sheet laid on the bottom wall surface of the housing 11, a light guide plate placed on the reflection sheet, and an opposite side of the light guide plate. It comprises a light source (not shown) arranged along the wall, an optical sheet placed on the light guide plate, and an intermediate frame 20 for positioning and fixing the light guide plate and the optical sheet. A plurality of leads 4 are led out of each light source.
- the reflection sheet has substantially the same size as the bottom wall surface of the housing, and is formed of a white resin film having a high reflectance.
- the light guide plate has a rectangular shape and has a predetermined shape. It is made of a thick plate-like body, and is formed of, for example, a milk-white acrylic resin material.
- the optical sheet is composed of a plurality of sheets, for example, a diffusion sheet and a condensing sheet, and is formed to have substantially the same size as the light guide plate.
- the lighting unit UT is stored in the housing 11 of the lighting unit 10. That is, a reflection sheet is laid on the bottom wall surface of the housing 11, a light guide plate is placed thereon, and a plurality of optical sheets are stacked on the light guide plate.
- a light source (not shown) is arranged along the side wall surface of the light guide plate, and a plurality of leads 4 connected to the light source are connected to the housing 11 through one gap 13 of the housing 11.
- the liquid crystal display panel LP is fitted into the intermediate frame 20, and the outer peripheral edge of the surface of the liquid crystal display panel LP is covered by the outer frame 30! Fix to 11.
- a gap is formed between the locking piece 23 and the cut-and-raised piece 14 of the housing 11.
- the lead wire 4 from which each light source power is derived is sandwiched and fixed in this gap.
- each lead wire 4 is fixed by inserting a plurality of lead wires 4 into a flexible tube 4. Also, the tip of the locking piece 23 is hook-shaped.
- the lead wire 4 can be protected, and the lead wire 4 can be prevented from falling out of the gap.
Landscapes
- 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)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/592,458 US7423702B2 (en) | 2004-03-29 | 2005-03-10 | Liquid crystal display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004096097A JP4534552B2 (ja) | 2004-03-29 | 2004-03-29 | 液晶表示装置 |
JP2004-096097 | 2004-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005093503A1 true WO2005093503A1 (ja) | 2005-10-06 |
Family
ID=35056340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/004256 WO2005093503A1 (ja) | 2004-03-29 | 2005-03-10 | 液晶表示装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7423702B2 (ja) |
JP (1) | JP4534552B2 (ja) |
KR (1) | KR100818834B1 (ja) |
CN (1) | CN100447632C (ja) |
TW (1) | TWI308657B (ja) |
WO (1) | WO2005093503A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100412640C (zh) * | 2005-11-04 | 2008-08-20 | 鸿富锦精密工业(深圳)有限公司 | 背光系统和其光学片固定模组 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4534552B2 (ja) * | 2004-03-29 | 2010-09-01 | セイコーエプソン株式会社 | 液晶表示装置 |
CN101681051B (zh) * | 2007-05-17 | 2012-09-05 | 夏普株式会社 | 显示装置用照明装置、显示装置 |
WO2014199988A1 (ja) * | 2013-06-13 | 2014-12-18 | 堺ディスプレイプロダクト株式会社 | 表示装置及びテレビ受像機 |
CN112327201B (zh) * | 2020-10-27 | 2023-11-14 | 惠州市特创电子科技股份有限公司 | 灯板型号区分治具及装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001249621A (ja) * | 2000-03-03 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 照明ユニット及びそれを備えた液晶表示装置 |
JP2003197017A (ja) * | 2001-12-26 | 2003-07-11 | Sharp Corp | 面状照明装置及びそれを使用した液晶表示装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04136978A (ja) * | 1990-09-28 | 1992-05-11 | Shin Etsu Polymer Co Ltd | 面状光源装置 |
JP2724642B2 (ja) | 1991-09-10 | 1998-03-09 | シャープ株式会社 | 液晶表示装置 |
JP3666265B2 (ja) * | 1998-08-20 | 2005-06-29 | 松下電器産業株式会社 | 照明ユニットとそれを用いた液晶表示装置 |
TWI223115B (en) * | 1999-06-17 | 2004-11-01 | Enplas Corp | Surface light device, liquid crystal display device and reflective member |
TW550428B (en) * | 1999-07-12 | 2003-09-01 | Nec Lcd Technologies Ltd | Flat panel display device and manufacturing method thereof |
JP2002190205A (ja) * | 2000-12-21 | 2002-07-05 | Enplas Corp | 面光源装置及び画像表示装置 |
JP2002304910A (ja) * | 2001-02-01 | 2002-10-18 | Kazuo Kono | バックライト照明ユニット |
KR100805127B1 (ko) * | 2001-05-17 | 2008-02-21 | 삼성전자주식회사 | 램프 와이어 고정홈을 갖는 액정표시장치 |
JP3964643B2 (ja) * | 2001-09-28 | 2007-08-22 | シャープ株式会社 | 光源装置及び表示装置 |
KR100485325B1 (ko) * | 2001-12-21 | 2005-04-25 | 주식회사 우영 | 백라이트용 램프홀더 조립체 및 이를 이용한 백라이트 |
JP2003223110A (ja) * | 2002-01-31 | 2003-08-08 | Sanyo Electric Co Ltd | 液晶表示器 |
KR100530950B1 (ko) * | 2002-09-16 | 2005-11-28 | 주식회사 우영 | 직하발광형 평면광원 |
JP4534552B2 (ja) * | 2004-03-29 | 2010-09-01 | セイコーエプソン株式会社 | 液晶表示装置 |
CN100483206C (zh) * | 2005-06-01 | 2009-04-29 | 鸿富锦精密工业(深圳)有限公司 | 显示装置 |
JP4813861B2 (ja) * | 2005-09-28 | 2011-11-09 | ゲットナー・ファンデーション・エルエルシー | 液晶モジュール |
-
2004
- 2004-03-29 JP JP2004096097A patent/JP4534552B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-10 WO PCT/JP2005/004256 patent/WO2005093503A1/ja active Application Filing
- 2005-03-10 CN CNB2005800056735A patent/CN100447632C/zh not_active Expired - Fee Related
- 2005-03-10 KR KR1020067020204A patent/KR100818834B1/ko not_active IP Right Cessation
- 2005-03-10 US US10/592,458 patent/US7423702B2/en not_active Expired - Fee Related
- 2005-03-28 TW TW094109515A patent/TWI308657B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001249621A (ja) * | 2000-03-03 | 2001-09-14 | Matsushita Electric Ind Co Ltd | 照明ユニット及びそれを備えた液晶表示装置 |
JP2003197017A (ja) * | 2001-12-26 | 2003-07-11 | Sharp Corp | 面状照明装置及びそれを使用した液晶表示装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100412640C (zh) * | 2005-11-04 | 2008-08-20 | 鸿富锦精密工业(深圳)有限公司 | 背光系统和其光学片固定模组 |
Also Published As
Publication number | Publication date |
---|---|
TWI308657B (en) | 2009-04-11 |
KR20070008612A (ko) | 2007-01-17 |
JP2005283866A (ja) | 2005-10-13 |
JP4534552B2 (ja) | 2010-09-01 |
US20070188673A1 (en) | 2007-08-16 |
US7423702B2 (en) | 2008-09-09 |
TW200600925A (en) | 2006-01-01 |
KR100818834B1 (ko) | 2008-04-02 |
CN100447632C (zh) | 2008-12-31 |
CN1922538A (zh) | 2007-02-28 |
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