WO2005083322A1 - バックライト装置および液晶表示装置 - Google Patents
バックライト装置および液晶表示装置 Download PDFInfo
- Publication number
- WO2005083322A1 WO2005083322A1 PCT/JP2005/003521 JP2005003521W WO2005083322A1 WO 2005083322 A1 WO2005083322 A1 WO 2005083322A1 JP 2005003521 W JP2005003521 W JP 2005003521W WO 2005083322 A1 WO2005083322 A1 WO 2005083322A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light source
- lamp
- pressing
- backlight device
- housing
- Prior art date
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
Definitions
- the present invention relates to a backlight device used for a non-self-luminous display device and a liquid crystal display device using the same.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2001-266634 discloses that even if the direction of the illuminating surface of the backlight device is changed to an arbitrary direction, the lamp 1 is straightened. Disclose lamp holders 2 and 2a that can be maintained.
- FIGS. 1 (A) and 1 (B) are a perspective view of a backlight device and a lamp holder used for an LCD of the present invention, and a cross-sectional view taken along line AA of FIG. 1 (A), and FIGS. 2 (A) and 2 (B).
- FIG. 3 is a perspective view of another lamp holder of the present invention and a cross-sectional view taken along the line BB of FIG. 2 (A), and FIGS. 3 (A) and 3 (B) also show the planar force on the opening side of the housing to be the lamp house.
- 4 (A) and 4 (B) are side sectional views for explaining a method of fixing the lamp holder to the housing
- FIG. 5 is a schematic view of the cylindrical light source of the present invention.
- 6 (A) and 6 (B) are a plan view of the backlight device of the present invention and a cross-sectional view taken along the line CC of FIG. 6 (A) for explaining a method of preventing a radius.
- the reflection plate 22 has an inclined portion 34 inclined to open toward the opening 21a.
- the above-described housing 21 and the reflector 22 may be formed integrally.For example, a white paint or aluminum foil is provided on the inner surface of the bottom plate 21b of the housing 21 and the bottom plate 21b is used as the reflector 22. You may.
- the radius R of the tip of the semi-arch inner diameter of the semi-arch shaped pressing portions 41L and 41R is selected to be slightly larger than the diameter of the tube wall of the lamp 23. Further, the height H of the inner diameter of the arches of the half arch portions 41L and 41R is selected to be larger than the diameter of the outer wall of the lamp 23 as shown in FIG. Further, the thickness T of the substrates 40L and 40R is determined by a normal distance formed between the reflector 22 on which the lamp holder 35 is mounted or the upper surface of the bottom plate 21b of the housing 21. Select a gap G value of about mm. As a result, the distance between the upper surface of the bottom plate 21b and the lamp 23 can be kept constant, and the variation in luminance can be reduced.
- the lamp holder 35 holds the lamp 23 at the position (the maximum radius position) 60 where the lamp 23 on the right side in FIG. Starting position (radius starting position) There is still a radius between 61a, 6 lb and the lamp holder 35, and the lamp 23 cannot be straightened.
- one pressing portion 41L presses the lamp 23 upward.
- the other pressing portion 41R presses the ramp 23 downward, so that the ramp 23 can be straightened.
- the reflection plate 22 or the bottom plate 21b has a screw hole 42a, and the lamp holder 35 is screwed into the through hole 42 and the screw hole 42a of the lamp holder 35 with a screw 46. By doing so, it is fixed to the reflection plate 22 or the bottom plate 21b.
- the lamp holder 35 can be fixed to the reflection plate 22 or the bottom plate 21b by using any other method such as a rivet, an adhesive, a double-sided tape, and a fixing pin.
- the lamp holder 35 having the single pressing portions 41L and 41R can be arranged at any of the radius start positions 61a and 61b of the lamp 23 to individually correct the radius of each lamp 23.
- FIG. 7D shows a pair of lamp holders 35 each having a plurality of pressing portions 41L and 41R extending from the substrate 52 in a direction normal to the bottom plate 21b.
- Each of the pressing portions 41L and 41R is designed such that an interval between adjacent pressing portions matches a plurality of lamp pitches arranged in parallel above the substrate 52.
- the pressing portions 41L and 41R are formed in an L-shape, and are configured such that their tips face each other.
- the pair of lamp holders 35 is fixed on the bottom plate 21b (or the reflection plate 22) of the housing 21 while being separated from each other. Since it is pressed (biased) in the direction and is pressed rightward with respect to the longitudinal direction by the other lamp holder 35, it is corrected so as to extend straight.
- Each lamp holder 35 has a groove 48 formed by press working, cutting, or the like, and has a through hole 42 for fixing to the bottom plate 21b of the housing 21.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006510534A JPWO2005083322A1 (ja) | 2004-03-02 | 2005-03-02 | バックライト装置および液晶表示装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004058041 | 2004-03-02 | ||
JP2004-058041 | 2004-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005083322A1 true WO2005083322A1 (ja) | 2005-09-09 |
Family
ID=34909088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/003521 WO2005083322A1 (ja) | 2004-03-02 | 2005-03-02 | バックライト装置および液晶表示装置 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2005083322A1 (ja) |
KR (1) | KR20060130186A (ja) |
CN (1) | CN1930418A (ja) |
TW (1) | TW200538818A (ja) |
WO (1) | WO2005083322A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009043635A (ja) * | 2007-08-10 | 2009-02-26 | Jst Mfg Co Ltd | 蛍光管用電極支持構造 |
US7524102B2 (en) | 2006-07-06 | 2009-04-28 | Sharp Kabushiki Kaisha | Light source device and liquid crystal display apparatus |
JP2011119277A (ja) * | 2011-03-02 | 2011-06-16 | Panasonic Liquid Crystal Display Co Ltd | 液晶表示装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0315105A (ja) * | 1989-06-09 | 1991-01-23 | Toshiba Lighting & Technol Corp | 照明装置およびランプの支持構造 |
JPH043475U (ja) * | 1990-04-20 | 1992-01-13 | ||
JPH04336527A (ja) * | 1991-05-14 | 1992-11-24 | Seiko Epson Corp | 液晶表示装置 |
JP2001210126A (ja) * | 2000-01-31 | 2001-08-03 | Sharp Corp | ランプホルダ及びバックライト装置 |
JP2004139871A (ja) * | 2002-10-18 | 2004-05-13 | Sharp Corp | 照明装置、バックライト装置及び液晶表示装置 |
JP2004342576A (ja) * | 2003-04-25 | 2004-12-02 | Harison Toshiba Lighting Corp | バックライト装置 |
-
2005
- 2005-03-02 KR KR1020067017416A patent/KR20060130186A/ko not_active Application Discontinuation
- 2005-03-02 WO PCT/JP2005/003521 patent/WO2005083322A1/ja active Application Filing
- 2005-03-02 TW TW094106294A patent/TW200538818A/zh unknown
- 2005-03-02 JP JP2006510534A patent/JPWO2005083322A1/ja not_active Withdrawn
- 2005-03-02 CN CNA2005800058035A patent/CN1930418A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0315105A (ja) * | 1989-06-09 | 1991-01-23 | Toshiba Lighting & Technol Corp | 照明装置およびランプの支持構造 |
JPH043475U (ja) * | 1990-04-20 | 1992-01-13 | ||
JPH04336527A (ja) * | 1991-05-14 | 1992-11-24 | Seiko Epson Corp | 液晶表示装置 |
JP2001210126A (ja) * | 2000-01-31 | 2001-08-03 | Sharp Corp | ランプホルダ及びバックライト装置 |
JP2004139871A (ja) * | 2002-10-18 | 2004-05-13 | Sharp Corp | 照明装置、バックライト装置及び液晶表示装置 |
JP2004342576A (ja) * | 2003-04-25 | 2004-12-02 | Harison Toshiba Lighting Corp | バックライト装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7524102B2 (en) | 2006-07-06 | 2009-04-28 | Sharp Kabushiki Kaisha | Light source device and liquid crystal display apparatus |
JP2009043635A (ja) * | 2007-08-10 | 2009-02-26 | Jst Mfg Co Ltd | 蛍光管用電極支持構造 |
JP2011119277A (ja) * | 2011-03-02 | 2011-06-16 | Panasonic Liquid Crystal Display Co Ltd | 液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
TW200538818A (en) | 2005-12-01 |
JPWO2005083322A1 (ja) | 2007-11-22 |
KR20060130186A (ko) | 2006-12-18 |
CN1930418A (zh) | 2007-03-14 |
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