CN1752807A - Light source device, back light module and liquid crystal display - Google Patents
Light source device, back light module and liquid crystal display Download PDFInfo
- Publication number
- CN1752807A CN1752807A CN 200410078231 CN200410078231A CN1752807A CN 1752807 A CN1752807 A CN 1752807A CN 200410078231 CN200410078231 CN 200410078231 CN 200410078231 A CN200410078231 A CN 200410078231A CN 1752807 A CN1752807 A CN 1752807A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- backlight module
- supply apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a light source device, backlight module and liquid crystal display. Said liquid crystal display includes liquid crystal display panel and backlight module. The backlight module is placed under the liquid crystal panel for providing plane light source. The backlight module is mainly formed from light-conducting plate and at least one light source device, and the light source device is mainly composed of reflecting cover and at least a linear light source.
Description
Technical field
The invention relates to a kind of light supply apparatus, Backlight module and liquid crystal display, particularly about having the light supply apparatus of at least one raised structures, the invention of Backlight module and liquid crystal display respectively with the bottom on a kind of reflex housing.
Background technology
Along with industry is flourishing day by day, digitization tools such as mobile phone (mobile phone), digital camera (digital camera), digital camera (digital video camera), notebook computer (notebook) and desktop PC develop towards direction more convenient, multi-functional and attractive in appearance invariably.Yet when using these information products, display screen is indispensable man-machine communication interface, and the display screen by the said goods can bring more facility for user's operation.Wherein, LCD has become the main flow of display screen.Yet, because LCD itself do not have luminous function, thus below LCD, must provide backlight module so that light source to be provided, and then reach the function of demonstration.At present, the kind of backlight module is numerous, and more common have direct type backlight module and a side light type back light module.
Fig. 1 is the synoptic diagram of known side light type back light module, and Fig. 2 A is the sectional view of Fig. 1 along the A-A profile line.Please be simultaneously with reference to Fig. 1 and Fig. 2 A, backlight module 50 is made of with at least one sheet blooming piece 210 light supply apparatus 100, light guide plate 220.Light supply apparatus 100 is assembled to one of light guide plate 220 side.This light supply apparatus 100 mainly is made up of reflex housing 110 and linear light sorurce 120.Linear light sorurce 120 is disposed in the reflex housing 110.In addition, light guide plate 220 tops dispose blooming piece 210.
Situation after the light supply apparatus of Fig. 2 B presentation graphs 2A is stressed.Please refer to Fig. 2 B, when backlight module 50 is installed,, then can cause the direction displacement of partial reflection cover 110 toward light guide plate 220 if erecting tools distortion or the assembler careless application of force in the process of taking is excessive.This situation not only can make blooming piece 210 be subjected to the interference of reflex housing 110 and produce distortion, also can make the each several part of reflex housing 110 to be maintained fixed distance with light guide plate 220, even causing the distortion or the damage of linear light sorurce 120, the area source that causes backlight module 50 to be provided at last produces the shortcoming of inhomogeneous (mura).
Summary of the invention
The purpose of this invention is to provide a kind of light supply apparatus, be suitable for improving the homogeneity of the area source that backlight module provides.
Another object of the present invention provides a kind of backlight module, is suitable for improving the homogeneity of the area source that backlight module provides.
A further object of the present invention provides a kind of LCD, is suitable for improving the homogeneity of the area source that backlight module provides.
The present invention proposes a kind of light supply apparatus, and this light supply apparatus is suitable for being assembled to one of light guide plate side.This light supply apparatus mainly is made up of reflex housing and at least one linear light sorurce.Has at least one raised structures respectively with the bottom on the reflex housing.Linear light sorurce is disposed in the reflex housing.When light supply apparatus was assembled to one of light guide plate side, the edge of light guide plate propped up the raised structures of reflex housing.
The present invention also proposes a kind of backlight module in addition, mainly is made up of light guide plate and at least one light supply apparatus.Light guide plate has at least one plane of incidence.Light supply apparatus is assembled to one of light guide plate side, and is positioned at by the plane of incidence.Light supply apparatus mainly is made up of reflex housing and at least one linear light sorurce.Reflex housing is assembled to light guide plate.Have at least one raised structures respectively with the bottom on the reflex housing contact light guide plate, and the edge of light guide plate props up raised structures.Linear light sorurce is disposed between the plane of incidence and reflex housing of light guide plate.
The present invention more proposes a kind of LCD, mainly is made up of display panels and backlight module.Backlight module is disposed under the display panels, in order to provide display panels required area source.Backlight module mainly is made up of light guide plate and at least one light supply apparatus.Light guide plate has at least one plane of incidence.Light supply apparatus is assembled to one of light guide plate side, and is positioned at by the plane of incidence.This light supply apparatus mainly is made up of reflex housing and at least one linear light sorurce.Reflex housing is assembled to light guide plate.Have at least one raised structures respectively with the bottom on the reflex housing contact light guide plate, and the edge of light guide plate props up raised structures.Linear light sorurce is disposed between the plane of incidence and reflex housing of light guide plate.
In sum, the top of the reflex housing of the present invention's light supply apparatus and bottom have at least one raised structures respectively, and when light supply apparatus was assembled to one of light guide plate side, the edge of light guide plate propped up the raised structures of reflex housing.Therefore, backlight module in when assembling reflex housing and light guide plate between can obtain suitably location distortion, and then guarantee the homogeneity of the area source that backlight module provides.
State with other purpose, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of known side light type back light module.
Fig. 2 A is the sectional view of Fig. 1 along the A-A profile line.
Situation after the light supply apparatus of Fig. 2 B presentation graphs 2A is stressed.
Fig. 3 is the sectional view of the LCD of one embodiment of the invention.
Fig. 4 A is the stereographic map of the backlight module of one embodiment of the invention among Fig. 3.
Fig. 4 B is along the sectional view of B-B profile line among Fig. 4 A.
The main element symbol description
50: backlight module
100: light supply apparatus
110: reflex housing
120: linear light sorurce
210: blooming piece
220: light guide plate
300: LCD
310: display panels
320: backlight module
330: light guide plate
332: the plane of incidence
340: light supply apparatus
342: reflex housing
342a: raised structures
344: linear light sorurce
346: keeper
350: the first frameworks
352: side plate
354: base plate
360: the second frameworks
370: blooming piece
A-A, B-B: profile line
Embodiment
Fig. 3 is the sectional view of the LCD of one embodiment of the invention.Please refer to Fig. 3, LCD 300 mainly is made up of display panels 310 and backlight module 320.Backlight module 320 is disposed at display panels 310 times, in order to provide display panels 310 required area source.Backlight module 320 mainly is made up of light guide plate 330 and at least one light supply apparatus 340.Light supply apparatus 340 mainly is made up of reflex housing 342 and at least one linear light sorurce 344.At this, the quantity system of linear light sorurce 344 is an example with two.Light guide plate 330 has the plane of incidence 332.Light guide plate 330 can be the light guide plate of plate light guide plate, wedge shape light guide plate or other form, is to be example with plate light guide plate at this.Two light supply apparatuses 340 are assembled to the both sides of light guide plate 330 respectively, and it is other to be positioned at the plane of incidence 332.
As shown in Figure 3, backlight module 320 for example more comprises first framework 350 and second framework 360.First framework 350 has base plate 354 and the vertical a plurality of side plates 352 that connect the periphery of base plate 354.Wherein, light guide plate 330 is to be disposed on the base plate 354 with light supply apparatus 340, and between each side plate 352.Second framework 360 is assembled on first framework 350, in order to light guide plate 330 and light supply apparatus 340 are fixed between first framework 350 and second framework 360.In addition, backlight module 320 for example more comprises a slice blooming piece 370 at least.This blooming piece 370 for example is prismatic lens or other blooming piece.
Fig. 4 A is the stereographic map of the backlight module of one embodiment of the invention among Fig. 3, and Fig. 4 B is along the sectional view of B-B profile line among Fig. 4 A.Please be simultaneously with reference to Fig. 4 A and Fig. 4 B, light supply apparatus 340 mainly is made up of reflex housing 342 and at least one linear light sorurce 344.At this, the quantity system of linear light sorurce 344 is an example with two.Reflex housing 342 is assembled to one of light guide plate 330 side.And, have at least one raised structures 342a respectively with the bottom on the reflex housing 342 contact light guide plate 330, and the edge of light guide plate 330 props up raised structures 342a.At this, the quantity system of raised structures 342a is an example with three pairs.In addition, linear light sorurce 344 is disposed between the plane of incidence 332 and reflex housing 342 of light guide plate 330.Linear light sorurce 344 for example be cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL), light emitting diode (Light Emitting Diode, LED) array or other linear light sorurce.
Referring again to Fig. 4 A and Fig. 4 B, the light supply apparatus 340 of backlight module 320 for example more comprises two keepers 346.Two keepers 346 are assembled in the two ends of linear light sorurce 344 and reflex housing 342 respectively, in order to the relative position of location light guide plate 330, linear light sorurce 344 and reflex housing 342.When backlight module 320 was installed, because have at least one raised structures 342a respectively with the bottom on the reflex housing 342 contact light guide plate 330, and the edge of light guide plate 330 was suitable for propping up raised structures 342a.So, even erecting tools distortion or the assembler careless application of force in the process of taking is excessive, the situation that reflex housing 342 too relies on the plane of incidence 332 of light guide plate 330 can not take place yet.Thus, blooming piece 370 just can not be subjected to the interference of reflex housing 342 and produce distortion, and can guarantee the homogeneity of the area source that backlight module 320 is provided.
Shown in Fig. 4 B, in light supply apparatus 340, the setting of the raised structures 342a of reflex housing 342 provides the uniform surface light source except guaranteeing backlight module 320, but also the ease of assembly personnel carry out location between reflex housing 342 and the light guide plate 330.Simultaneously, the reflex housing 342 with raised structures 342a also can guarantee and light guide plate 330 between be maintained fixed distance, and protection linear light sorurce 344 does not produce distortion or is damaged.
It should be noted that in light supply apparatus, backlight module and the LCD in the present invention that be not limited to have three pairs of raised structures with the bottom on the reflex housing contact light guide plate, the quantity of raised structures can optionally increase and decrease.
In sum, the present invention's light supply apparatus, backlight module and LCD have following feature and advantage:
(a) reflex housing of light supply apparatus has at least one raised structures respectively with the bottom on the contact light guide plate.And the edge of light guide plate props up raised structures.Therefore, backlight module is in when assembling, can not rely on light guide plate because of erecting tools distortion or the excessive reflex housing that makes of the assembler application of force, and then guarantee the homogeneity of the area source that backlight module provides.
(b) setting of reflex housing upper process structure can be used as the usefulness of the location between reflex housing and light guide plate, and prevents that backlight module is influenced by external force and causes deviations in the process of taking.Therefore, the raised structures of reflex housing can improve the installation qualification rate of backlight module, more can prevent area source that backlight module provides because of the bad non-uniform phenomenon that causes is installed, and then improve the display quality of LCD.
Though the present invention with preferred embodiment openly as above; right its is not in order to limit the present invention; the ordinary skill of any technical field that the present invention belongs to; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking claims person of defining.
Claims (19)
1. a light supply apparatus is suitable for being assembled to one of light guide plate side, it is characterized in that this light supply apparatus comprises:
Reflex housing has at least one projection respectively with the bottom on this reflex housing
Structure; And
At least one linear light sorurce is disposed in this reflex housing, when this light supply apparatus
When being assembled to one of this light guide plate side, the edge of this light guide plate props up those raised structures of this reflex housing.
2. the light supply apparatus according to claim 1 is characterized in that also comprising two keepers, is assembled in the two ends of this linear light sorurce and this reflex housing respectively, in order to locate the relative position of this light guide plate, this linear light sorurce and this reflex housing.
3. the light supply apparatus according to claim 1 is characterized in that this linear light sorurce comprises cathode fluorescent tube or light emitting diode matrix.
4. backlight module is characterized in that comprising:
Light guide plate has at least one plane of incidence;
At least one light supply apparatus is assembled to one of this light guide plate side, and is positioned at by this plane of incidence, and this light supply apparatus comprises:
Reflex housing is assembled to this light guide plate, and this reflex housing contacts on this light guide plate has at least one raised structures respectively with the bottom, and the edge of this light guide plate props up those raised structures; And
At least one linear light sorurce is disposed between this plane of incidence and this reflex housing of this light guide plate.
5. the backlight module according to claim 4 is characterized in that this light supply apparatus also comprises two keepers, is assembled in the two ends of this linear light sorurce and this reflex housing respectively, in order to locate the relative position of this light guide plate, this linear light sorurce and this reflex housing.
6. the backlight module according to claim 4 is characterized in that this linear light sorurce comprises cathode fluorescent tube or light emitting diode matrix.
7. the backlight module according to claim 4 is characterized in that also comprising first framework, has base plate and the vertical a plurality of side plates that connect the periphery of this base plate, and this light guide plate and this light supply apparatus are disposed between this base plate and these side plates.
8. the backlight module according to claim 7 is characterized in that also comprising second framework, is assembled on this first framework, in order to this light guide plate and this light supply apparatus are fixed between this first framework and this second framework.
9. the backlight module according to claim 4 is characterized in that this light guide plate comprises plate light guide plate or wedge shape light guide plate.
10. the backlight module according to claim 4 is characterized in that also comprising a slice blooming piece at least, is disposed on this light guide plate.
11. the backlight module according to claim 10 is characterized in that this blooming piece comprises prismatic lens.
12. a LCD is characterized in that comprising:
Display panels;
Backlight module is disposed under this display panels, in order to this liquid crystal to be provided
The area source that display panel is required, this backlight module comprises:
Light guide plate has at least one plane of incidence;
At least one light supply apparatus is assembled to one of this light guide plate side, and is positioned at by this plane of incidence, and this light supply apparatus comprises:
Reflex housing is assembled to this light guide plate, and this reflex housing contacts on this light guide plate has at least one raised structures respectively with the bottom, and the edge of this light guide plate props up those raised structures; And
At least one linear light sorurce is disposed between this plane of incidence and this reflex housing of this light guide plate.
13. the LCD according to claim 12 is characterized in that this light supply apparatus also comprises two keepers, is assembled in the two ends of this linear light sorurce and this reflex housing respectively, in order to locate the relative position of this light guide plate, this linear light sorurce and this reflex housing.
14. the LCD according to claim 12 is characterized in that this linear light sorurce comprises cathode fluorescent tube or light emitting diode matrix.
15. the LCD according to claim 12, it is characterized in that this backlight module also comprises first framework, have a base plate and the vertical a plurality of side plates that connect the periphery of this base plate, wherein this light guide plate and this light supply apparatus are disposed between this base plate and these side plates.
16. the LCD according to claim 15 is characterized in that this backlight module also comprises second framework, is assembled on this first framework, in order to this light guide plate and this light supply apparatus are fixed between this first framework and this second framework.
17. the LCD according to claim 12 is characterized in that this light guide plate comprises plate light guide plate or wedge shape light guide plate.
18. the LCD according to claim 12 is characterized in that this backlight module also comprises a slice blooming piece at least, is disposed on this light guide plate.
19. the LCD according to claim 18 is characterized in that this blooming piece comprises prismatic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078231 CN1752807A (en) | 2004-09-21 | 2004-09-21 | Light source device, back light module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078231 CN1752807A (en) | 2004-09-21 | 2004-09-21 | Light source device, back light module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752807A true CN1752807A (en) | 2006-03-29 |
Family
ID=36679731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410078231 Pending CN1752807A (en) | 2004-09-21 | 2004-09-21 | Light source device, back light module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1752807A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388093C (en) * | 2006-06-13 | 2008-05-14 | 友达光电股份有限公司 | Side light type backlight module |
| US7712947B2 (en) | 2006-01-17 | 2010-05-11 | Au Optronics Corporation | Backlight module |
| CN101813273A (en) * | 2010-04-19 | 2010-08-25 | 友达光电股份有限公司 | Backlight module and liquid crystal display module |
| CN102313156A (en) * | 2010-07-02 | 2012-01-11 | 海洋王照明科技股份有限公司 | LED (Light Emitting Diode) planar light source |
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| WO2014040303A1 (en) * | 2012-09-12 | 2014-03-20 | 深圳市华星光电技术有限公司 | Backlight unit and liquid crystal display device |
| CN104748017A (en) * | 2015-04-10 | 2015-07-01 | 北京京东方多媒体科技有限公司 | Backlight source and display device |
-
2004
- 2004-09-21 CN CN 200410078231 patent/CN1752807A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712947B2 (en) | 2006-01-17 | 2010-05-11 | Au Optronics Corporation | Backlight module |
| CN100388093C (en) * | 2006-06-13 | 2008-05-14 | 友达光电股份有限公司 | Side light type backlight module |
| CN101813273A (en) * | 2010-04-19 | 2010-08-25 | 友达光电股份有限公司 | Backlight module and liquid crystal display module |
| CN101813273B (en) * | 2010-04-19 | 2016-01-06 | 友达光电股份有限公司 | Backlight module and liquid crystal display module |
| CN102313156A (en) * | 2010-07-02 | 2012-01-11 | 海洋王照明科技股份有限公司 | LED (Light Emitting Diode) planar light source |
| CN102313156B (en) * | 2010-07-02 | 2013-10-02 | 海洋王照明科技股份有限公司 | LED (Light Emitting Diode) planar light source |
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| WO2014040303A1 (en) * | 2012-09-12 | 2014-03-20 | 深圳市华星光电技术有限公司 | Backlight unit and liquid crystal display device |
| CN104748017A (en) * | 2015-04-10 | 2015-07-01 | 北京京东方多媒体科技有限公司 | Backlight source and display device |
| US9977178B2 (en) | 2015-04-10 | 2018-05-22 | Boe Technology Group Co., Ltd. | Backlight source and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1591132B (en) | Backlight assembly for dispay | |
| CN1664667A (en) | Dual-display module with a tunable mirror sheet | |
| CN101315439A (en) | Light guide plate, backlight assembly including the same, and liquid crystal display device including the same | |
| CN1769972A (en) | Backlight assembly improving light efficiency and display device provided with the same | |
| CN1646854A (en) | Illumination unit and liquid crystal display apparatus comprising same | |
| CN101922689B (en) | Backlight module for reducing light leakage | |
| KR20110070579A (en) | Reflecting plate for prevent leakage of light, back light unit and liquid crystal display device having thereof | |
| CN103822144A (en) | Backlight module and liquid crystal display device using same | |
| CN1637522A (en) | Back light structure of liquid crystal display device | |
| CN101886778A (en) | Backlight module and liquid crystal display device | |
| US20170059764A1 (en) | Light guide plate, backlight unit and display device | |
| WO2016197394A1 (en) | Backlight module and liquid crystal display device | |
| CN1696795A (en) | Backing Module of liquid crystal display and supporing stucture | |
| CN1752807A (en) | Light source device, back light module and liquid crystal display | |
| CN1967320A (en) | Base plate and LCD device | |
| CN1210603C (en) | Reflection-type LCD | |
| CN100476537C (en) | Back-light module and liquid crystal display | |
| CN1924665A (en) | Backlight module and liquid crystal display module | |
| CN1549029A (en) | Backlight module and liquid crystal display device | |
| CN1280661C (en) | Back light module and liquid crystal display device | |
| CN2752810Y (en) | Reflector structure of straight-down back light module for raising reflective uniform brightness | |
| CN1658044A (en) | Backlight module | |
| KR20070000919A (en) | Back light of a liquid crystal display device | |
| CN1693961A (en) | Liquid crystal display device | |
| KR20100001545A (en) | Backlight unit for display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |