CN2583900Y - Extraction type back-to-light module structure for liquid crystal TV - Google Patents
Extraction type back-to-light module structure for liquid crystal TV Download PDFInfo
- Publication number
- CN2583900Y CN2583900Y CN 02288701 CN02288701U CN2583900Y CN 2583900 Y CN2583900 Y CN 2583900Y CN 02288701 CN02288701 CN 02288701 CN 02288701 U CN02288701 U CN 02288701U CN 2583900 Y CN2583900 Y CN 2583900Y
- Authority
- CN
- China
- Prior art keywords
- extraction
- type
- lcd
- lamp bracket
- backlight
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- Expired - Fee Related
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 5
- 238000010276 construction Methods 0.000 claims description 16
- 238000004020 luminiscence type Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model relates to an extraction type backlight module structure for liquid-crystal televisions, which is composed of a casing provided with an extraction mouth, a display screen arranged on the front part of the casing, an extraction type lamp holder which corresponds to the extraction mouth and is arranged on the rear part of the display screen, and a main circuit board arranged on the rear part of the extraction type lamp holder, wherein, a light-emitting unit arranged on the extraction type lamp holder is driven by the main circuit board. Light generated by the light-emitting unit is uniformly diffused into an area light source by the display screen, and the extraction type lamp holder can be easily replaced through the extraction mouth; thereby, the extraction type backlight module structure for liquid-crystal televisions is formed.
Description
Technical field
The utility model relates to a kind of extraction-type modular construction backlight of LCD TV, refers to a kind of extraction-type modular construction backlight that is applied to the LCD TV of amusement, education or medical aspect especially.
Background technology
Raising day by day along with people's income, requirement for quality of the life also promotes gradually, conventional picture tube TV (CRT TV) be the substitute is LCD TV (TFT-LCD) and plasma display TV (PDP) because problems such as bulky, color and ratio distortion are eliminated by the consumer gradually.Yet being seen on the market plasma display TV mostly is large-size, and for the consideration of cost, ordinary consumer often can't be born the TV of this high price, and therefore, LCD TV is regarded as the next-generation of picture tube TV.
For LCD TV, need module backlight as light source more, the so-called rear that refers to light source position at liquid crystal panel backlight, the essential structure of module backlight mainly contains three parts: light source, light guide plate and blooming, the kind of light source can be divided into cold cathode fluorescent lamp pipe (Cold Cathode Fluorescent Lamp, CCFL), hot-cathode fluorescent light tube (HotCathode Fluorescent Lamp, HCFL) and light-emitting diode (Light EmittingDiode, LED), generally speaking the size of fluorescent tube quantity visible liquid crystal TV and adjusting to some extent is about 2-40 root fluorescent tube; In light guide plate (1ight Guide Plate) part, be to utilize wedge type or plate light guide plate, the line source that light source produced is atomized into uniform surface light source; In the blooming piece part, there is the light that not to be scattered to import the reflecting plate (Reflector) of light guide plate respectively according to difference in functionality, make light form diffusion and diffusion sheet (Diffusion Sheet) and the cohesion light and the brightness enhancement film that improves the screen briliancy (BrightnessEnhancement Film or title prismatic lens) of even diffusion, wherein, the product operating period of light guide plate and blooming piece was more than 10 years, yet, configurations of light sources belongs to running stores, no matter be cold, hot-cathode fluorescent light tube or light-emitting diode, the general operating period is about 10000-30000 hour (being about 14-40 month), life-span is short far beyond other element, for the consumer, easily hundreds thousand of LCD TV, in case configurations of light sources breaks down, certainly will can't re-use, add that traditional backlight module is many with configurations of light sources, the fixing assembling of light guide sheet and blooming piece, each element is if any damage, need numerous and diverse formality to change, for the consumer, bring inconvenience, the LCD TV of large-size especially, fluorescent tube quantity are nearly more than 20, weight is up to several kilograms, add that fluorescent tube is frangible, change fluorescent tube difficulty especially, and may damage other fluorescent tube.
For this reason, relevant manufacturer also develops the replacing structure of fluorescent tube, replace structure as No. 342950 LCD screen fluorescent tube of Taiwan patent announcement, include a screen body and a side cover that a lateral margin is concaved with breach and elongated slot, in order to the fluorescent tube in the lamp changing base more, yet this patent case has only disclosed a kind of fluorescent tube and has replaced structure, clearly do not narrate the screen fluorescent tube and how be connected driving with circuit board, therefore, fail to know the overall structure of describing LCD screen, the fluorescent tube that adds this patent case only has two up and down, LCD TV now mostly was more than 20 o'clock, the fluorescent tube number is more up to more than 8, this fluorescent tube is replaced the LCD TV that structure probably can't be applicable to many fluorescent tubes, and this patent case only discloses the notion that a kind of fluorescent tube is replaced structure, can't implement according to this (to lack circuit board driving and light guide plate at all, diffusing structures such as blooming piece), so there is no the swapping type of LCD TV module backlight on the market.
The utility model content
Main purpose of the present utility model is to solve above-mentioned defective, avoids the existence of defective, and the utility model provides a kind of extraction-type of LCD TV module backlight, makes the consumer can change the fluorescent tube of LCD TV easily.
For realizing above-mentioned purpose, the utility model includes extraction-type lamp bracket and that a housing, that is provided with extraction opening is located at the display screen in this housing the place ahead, a corresponding extraction opening and is disposed at this display screen rear and is located at the main circuit board at this extraction-type lamp bracket rear and forms, drive luminescence unit on the extraction-type lamp bracket by main circuit board, by display screen the light that luminescence unit produces evenly is diffused as area source, and the extraction-type lamp bracket can utilize extraction opening to substitute easily, constitutes a kind of extraction-type modular construction backlight of LCD TV thus.
Description of drawings
Relevant detailed description of the present utility model and technology contents, existing conjunction with figs. is described as follows.
Fig. 1 is a stereoscopic schematic diagram of the present utility model.
Fig. 2 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model.
Fig. 3 is an assembled state schematic diagram of the present utility model.
Fig. 4 is another embodiment schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1,2, be the utility model stereoscopic and STRUCTURE DECOMPOSITION schematic diagram.As shown in the figure: the utility model is a kind of extraction-type of LCD TV modular construction backlight, include a housing 10, that is provided with extraction opening 13 and be located at the extraction-type lamp bracket 30 that the display screen 20, in these housing 10 the place aheads is disposed at these display screen 20 rears and is provided with a plurality of luminescence units 31 and voltage conversion unit 32, and one is located at these extraction-type lamp bracket 30 rears and is connected in luminescence unit 31 and the main circuit board 40 of voltage conversion unit 32.
Referring to Fig. 3, be assembled state schematic diagram of the present utility model.As shown in the figure: during assembling, extraction-type lamp bracket 30 is inserted along the guide groove 11 of housing 10 both sides, when extraction-type lamp bracket 30 is assembled to housing 10 inside fully, because guide groove 11 and extraction-type lamp bracket 30 relative buckle element 111 and the breach 35 of being provided with, keep the relation of fastening so can make extraction-type lamp bracket 30 and housing 10, unlikelyly, interelement rocks collision because of existing the space to produce, and housing 10 and the lid 33 relative fixing holes 112,331 that are provided with, can utilize retaining element 50 to lock fixing hole 112,331, further stationary housing 10 and extraction-type lamp bracket 30; During dismounting, earlier retaining element 50 is unloaded, though guide groove 11 and extraction-type lamp bracket 30 relative buckle element 111 and the breach 35 of being provided with, but buckle element 111 is an arc modeling with breach 35, and buckle element 111 has elasticity, only needing a little, the application of force can make extraction-type lamp bracket 30 separate with guide groove 11, add that extraction-type lamp bracket 30 is provided with the handle 36 that makes things convenient for the application of force, more can extraction-type lamp bracket 30 be taken out convenient user, in addition, 30 relative safety switch 122 and control elements 37 of being provided with of secondary circuit plate 12 on the housing 10 and extraction-type lamp bracket make extraction-type lamp bracket 30 separate with secondary circuit plate 12, and 37 of control elements and safety switch 122 break away from, at this moment, safety switch 122 will cut off the power supply of LCD TV 1, to avoid child's false touch, causes danger.
Referring to Fig. 4, be embodiment schematic diagram of the present utility model.As shown in the figure: housing 10 is except being provided with guide groove 11 in the inner left and right sides, make extraction-type lamp bracket 30 by outside the extraction of housing 10 tops, also guide groove 11 ' can be arranged on housing 10 ' inner both sides up and down, then extraction-type lamp bracket 30 ' utilizes handle 36 ' to extract out by side extraction opening 13 ', at this moment, the lid 33 ' of extraction-type lamp bracket 30 ' then is located at housing 10 ' side, and utilize the relative fixing hole 331 ' that is provided with on lid 33 ' and the guide groove 11 ', 112 ', borrow retaining element 50 sealed with sealing guide groove 11 ', remaining assembling sequence and use do not repeat them here all with aforementioned.
Claims (10)
1. the extraction-type of LCD TV modular construction backlight is characterized in that, this modular construction comprises:
One is provided with the housing of extraction opening;
One is located at the display screen in this housing the place ahead;
One corresponding to extraction opening and be disposed at the extraction-type lamp bracket at this display screen rear,
This extraction-type lamp bracket is provided with luminescence unit and voltage conversion unit; And
One is located at this extraction-type lamp bracket rear and is connected in luminescence unit and voltage transitions
The main circuit board of unit.
2. the extraction-type of LCD TV according to claim 1 modular construction backlight is characterized in that, the extraction opening both sides of this housing are provided with guide groove corresponding to the extraction-type lamp bracket.
3. the extraction-type of LCD TV according to claim 2 modular construction backlight is characterized in that, relative buckle element and the breach of being provided with the extraction-type lamp bracket of this guide groove.
4. the extraction-type of LCD TV according to claim 2 modular construction backlight is characterized in that, this extraction-type lamp bracket is provided with the lid of sealing guide groove.
5. the extraction-type of LCD TV according to claim 4 modular construction backlight is characterized in that, the relative fixing hole that is provided with lid of this housing.
6. the extraction-type of LCD TV according to claim 1 modular construction backlight is characterized in that, this luminescence unit can be any in cold cathode fluorescent lamp pipe (CCFL), hot-cathode fluorescent light tube (HCFL) or the light-emitting diode (LED).
7. the extraction-type of LCD TV according to claim 1 modular construction backlight is characterized in that, this voltage conversion unit can be piezoelectric ceramic transformer.
8. the extraction-type of LCD TV according to claim 1 modular construction backlight is characterized in that, this main circuit board is to connect the extraction-type lamp bracket with soft arranging wire.
9. the extraction-type of LCD TV according to claim 1 modular construction backlight is characterized in that, can be provided with the secondary circuit plate on this housing, between this secondary circuit plate and extraction-type lamp bracket and relative safety switch and the control element of being provided with.
10. the extraction-type of LCD TV according to claim 9 modular construction backlight is characterized in that, this secondary circuit plate can be provided with the connectivity port relatively with the extraction-type lamp bracket, and this connectivity port can be golden finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288701 CN2583900Y (en) | 2002-12-04 | 2002-12-04 | Extraction type back-to-light module structure for liquid crystal TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288701 CN2583900Y (en) | 2002-12-04 | 2002-12-04 | Extraction type back-to-light module structure for liquid crystal TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583900Y true CN2583900Y (en) | 2003-10-29 |
Family
ID=33748493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288701 Expired - Fee Related CN2583900Y (en) | 2002-12-04 | 2002-12-04 | Extraction type back-to-light module structure for liquid crystal TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583900Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395612C (en) * | 2004-03-31 | 2008-06-18 | 友达光电股份有限公司 | Liquid-crystal display and back-light module group |
| CN100412652C (en) * | 2006-08-10 | 2008-08-20 | 友达光电股份有限公司 | Lamp tube replaceable backlight module |
| US7866874B2 (en) | 2008-05-23 | 2011-01-11 | Au Optronics Corp. | Backlight module having replaceable light apparatus |
| CN102062339A (en) * | 2010-12-24 | 2011-05-18 | 深圳市邦贝尔电子有限公司 | Combination device for light source module and frame |
| CN101686357B (en) * | 2004-06-11 | 2011-09-07 | 启萌科技有限公司 | Liquid crystal display device |
| CN105303968A (en) * | 2015-09-22 | 2016-02-03 | 武汉华星光电技术有限公司 | Electronic device |
| CN111221180A (en) * | 2020-01-20 | 2020-06-02 | 京东方科技集团股份有限公司 | Backlight and display device |
| CN113661436A (en) * | 2019-04-12 | 2021-11-16 | 株式会社日本显示器 | Light source device and display device having the same |
-
2002
- 2002-12-04 CN CN 02288701 patent/CN2583900Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395612C (en) * | 2004-03-31 | 2008-06-18 | 友达光电股份有限公司 | Liquid-crystal display and back-light module group |
| CN101686357B (en) * | 2004-06-11 | 2011-09-07 | 启萌科技有限公司 | Liquid crystal display device |
| CN100412652C (en) * | 2006-08-10 | 2008-08-20 | 友达光电股份有限公司 | Lamp tube replaceable backlight module |
| US7866874B2 (en) | 2008-05-23 | 2011-01-11 | Au Optronics Corp. | Backlight module having replaceable light apparatus |
| CN102062339A (en) * | 2010-12-24 | 2011-05-18 | 深圳市邦贝尔电子有限公司 | Combination device for light source module and frame |
| CN102062339B (en) * | 2010-12-24 | 2014-04-30 | 深圳市邦贝尔电子有限公司 | Combination device for light source module and frame |
| CN105303968A (en) * | 2015-09-22 | 2016-02-03 | 武汉华星光电技术有限公司 | Electronic device |
| CN113661436A (en) * | 2019-04-12 | 2021-11-16 | 株式会社日本显示器 | Light source device and display device having the same |
| CN113661436B (en) * | 2019-04-12 | 2024-02-20 | 株式会社日本显示器 | Light source device and display device having the same |
| CN111221180A (en) * | 2020-01-20 | 2020-06-02 | 京东方科技集团股份有限公司 | Backlight and display device |
| CN111221180B (en) * | 2020-01-20 | 2022-05-13 | 京东方科技集团股份有限公司 | Backlight and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |