CN1818756A - Backlight unit - Google Patents
Backlight unit Download PDFInfo
- Publication number
- CN1818756A CN1818756A CN 200610054723 CN200610054723A CN1818756A CN 1818756 A CN1818756 A CN 1818756A CN 200610054723 CN200610054723 CN 200610054723 CN 200610054723 A CN200610054723 A CN 200610054723A CN 1818756 A CN1818756 A CN 1818756A
- Authority
- CN
- China
- Prior art keywords
- frame
- shield device
- light
- backlight module
- light shield
- 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.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 230000000994 depressogenic effect Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 abstract description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Images
Abstract
A back light unit consists of frame base with frame, optical diaphragm, binding element and light shielding component .It is featured as setting groove on frame and lug on optical diaphragm, embedding lug on optical diaphragm and groove on frame to each other when said diaphragm is placed in said frame, setting light shielding component at internal top position of frame and placing said binding element between the two, not placing said binding element between optical diaphragm and light shielding component .
Description
Technical field
The present invention relates to a kind of display device, particularly relate to a kind of backlight liquid crystal display unit.
Background technology
LCD has many application markets at present, comprise communication, hand-held moving device, automobile liquid crystal display screen, monitor, mobile computer and personal computer, can predict future will be in a large number even replace traditional cathode ray tube (CRT) screen fully.
The present employed small-sized LCD of hand-held moving device is to rely on two-sidedly adhesive black shading rubber belt (shading tape) all to be arranged for combining fixed mediums between backlight module and liquid crystal panel.In addition, the employed light source of the small-sized backlight liquid crystal display module of this kind is generally the sidelight source.So need in the bottom of backlight module can the diffuse light line astigmatic diaphragm come the light in scattering sidelight source, to form uniform surface light source as usefulness backlight.
Yet shading rubber belt is positioned on the astigmatic diaphragm.Therefore when finding that finished LCD products has flaw to need rework in (rework), in the shading rubber belt of tearing, tend to damage the surface of astigmatic diaphragm, cause to re-use this astigmatic diaphragm.So, will make heavy industry be difficult for finishing, thereby increase manufacturing cost.
Summary of the invention
Therefore the object of the present invention is to provide a kind of backlight module, in the time of the light shield device of backlight module need being taken off at the display panel heavy industry, the adhesive coating of light shield device below can not adhere to the blooming piece that is positioned under the light shield device, allows blooming piece can keep original optical property.
According to above-mentioned and other purpose of the present invention, a kind of back light unit that is applicable in the display is proposed, it comprises framework seat, blooming piece, sticker part and the light shield device with frame.Above-mentioned frame has at least one groove, and blooming piece has at least one flange.In the time of among blooming piece places frame, the flange of blooming piece can be chimeric mutually with the groove of frame.Above-mentioned light shield device places the inner and upper of frame, and sticker part only is located between light shield device and the frame, between blooming piece and the light shield device without any sticker part.
According to above-mentioned and other purpose of the present invention, also disclose a kind of backlight module.This backlight module comprises above-mentioned back light unit and at least one light source, and this light source is arranged at contiguous this blooming piece part.
According to as can be known above-mentioned, because any sticker part is not set between blooming piece and light shield device, when therefore taking off light shield device when needing rework, the surface of blooming piece will not have any damage.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended graphic being described in detail as follows:
Figure 1A-Fig. 1 D is the schematic top plan view of each assembly of a kind of backlight module of a preferred embodiment of the present invention;
Fig. 2 is the schematic top plan view that covers light shield device on the assembly of Figure 1B;
Fig. 3 A-Fig. 3 B is the cross-sectional view along the straight line AA ' of Fig. 1 D backlight module.
The primary clustering symbol description
100: framework seat 110: frame
115: groove 120: light source
130: printed circuit board (PCB) 140: blooming piece
145: flange 150: adhesive coating
160: light shield device 165: light shield device
167: depressed part 170: adhesive coating
180: the protection diaphragm
Embodiment
The invention provides a kind of backlight module, in the time of the light shield device of backlight module need being taken off at the display panel heavy industry, the adhesive coating of light shield device below can not adhere to the blooming piece that is positioned under the light shield device, allows blooming piece can keep original optical property.
Please refer to Figure 1A-Fig. 1 D, it illustrates the vertical view according to each assembly of a kind of backlight module of a preferred embodiment of the present invention.In Figure 1A, the inside of framework seat 100 has frame 110, and frame 110 has several grooves 115.On the frame 110 of a side several light sources 120 are installed therein, as light emitting diode.Several above-mentioned light sources 120 all join with printed circuit board (PCB) 130 electricity.And among the frame 110, then be embedded with blooming piece 140.Blooming piece 140 has several flanges 145, embeds respectively among several grooves 115 of frame 110.Above-mentioned blooming piece 140 for example can be astigmatic diaphragm.
Figure 1B illustrates the schematic top plan view that has covered adhesive coating 150 on the assembly of Figure 1A.150 of adhesive coatings cover on the frame 110, and any adhesive coating 150 is not set on the blooming piece 140.
Fig. 1 C illustrates the schematic top plan view that covers light shield device 160 on the assembly of Figure 1B.The function of light shield device 160 is to prevent that the light that light source 120 is sent from spilling from the side of backlight module, just can thereby not reduce the lightness of backlight module.The light shield device 160 of Fig. 1 C also can only cover on the frame 110, light shield device 165 as shown in Figure 2.In Fig. 2, light shield device 165 also has several depressed parts 167, and the position of each depressed part 167 is sitting at the top of each groove 115 of frame 110.On light shield device 160 (Fig. 1 C) or light shield device 165 (Fig. 2), be coated with adhesive coating 170 more then.
Fig. 1 D is the schematic top plan view that illustrates covering protection diaphragm 180 on the assembly of Fig. 1 C or Fig. 2.When backlight module is not assembled on the display panel as yet, can first temporary protection blooming piece 140, prevent that micronic dust from dropping on the blooming piece 140 and damage blooming piece 140.When the blooming group will be assembled with display panel,, display panel is placed on light shield device 160 or 165 to get final product again as long as will protect diaphragm 180 to take off.
By the invention described above preferred embodiment as can be known, owing to only on the frame of framework seat, adhesive coating is set, and on the blooming piece any adhesive coating is not set.Therefore in the time of light shield device need being taken off on backlight module when needing rework, the surface of blooming piece will not have any damage.So, can save many manufacturing costs and manufacturing time.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be to enclose being as the criterion that claim defined.
Claims (15)
1. back light unit comprises:
One framework seat, it has a frame, and this frame has at least one groove;
At least one blooming piece, it has at least one flange with chimeric this at least one groove and be arranged in this framework seat;
One light shield device is arranged on this frame and does not contact with this at least one blooming piece; And
One adhesive coating is arranged between this light shield device and this frame.
2. back light unit as claimed in claim 1, wherein this light shield device is light tight in fact.
3. back light unit as claimed in claim 1, wherein this at least one blooming piece comprises an astigmatic diaphragm.
4. back light unit as claimed in claim 1, wherein this light shield device has at least one depressed part with to should at least one groove.
5. back light unit as claimed in claim 1, wherein this light shield device only is arranged on this frame.
6. back light unit as claimed in claim 1, wherein the central authorities of this framework seat have an opening substantially, and this frame is around this opening.
7. backlight module comprises:
One framework seat, it has a frame, and this frame has at least one groove;
At least one blooming piece, it has at least one flange with chimeric this at least one groove and be arranged in this framework seat;
One light shield device is arranged on the frame and does not contact with this at least one blooming piece;
One adhesive coating is between this light shield device and this frame; And
One light source, the contiguous side that is arranged at this blooming piece.
8. backlight module as claimed in claim 7, wherein this light shield device is essentially light tight.
9. backlight module as claimed in claim 7, wherein this at least one blooming piece comprises an astigmatic diaphragm.
10. backlight module as claimed in claim 7, wherein this light shield device has at least one depressed part with to should at least one groove.
11. backlight module as claimed in claim 7, wherein this light shield device only is arranged on this frame.
12. backlight module as claimed in claim 7, wherein the central authorities of this framework seat have an opening substantially, and this frame is around this opening.
13. backlight module as claimed in claim 7, wherein this light source comprises at least one light emitting diode.
14. backlight module as claimed in claim 7, wherein this light source is arranged on this framework seat.
15. backlight module as claimed in claim 14, wherein this light source is arranged on this frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100547235A CN100388072C (en) | 2006-03-02 | 2006-03-02 | Backlight unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100547235A CN100388072C (en) | 2006-03-02 | 2006-03-02 | Backlight unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1818756A true CN1818756A (en) | 2006-08-16 |
| CN100388072C CN100388072C (en) | 2008-05-14 |
Family
ID=36918823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100547235A Expired - Fee Related CN100388072C (en) | 2006-03-02 | 2006-03-02 | Backlight unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100388072C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561582B (en) * | 2008-04-17 | 2010-12-15 | 胜华科技股份有限公司 | Backlight module structure |
| US8419265B2 (en) | 2008-09-23 | 2013-04-16 | Au Optronics Corporation | Backlight module |
| CN103558705A (en) * | 2010-02-18 | 2014-02-05 | 株式会社日本显示器 | Liquid crystal display device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002098945A (en) * | 2000-09-21 | 2002-04-05 | Seiko Epson Corp | Liquid crystal device, light-shielding sheet for liquid crystal device and manufacturing method of the liquid crystal device |
| JP2002196312A (en) * | 2000-12-25 | 2002-07-12 | Hitachi Ltd | Liquid crystal display device |
| JP2003084282A (en) * | 2001-09-13 | 2003-03-19 | Hitachi Ltd | Liquid crystal display device |
| KR100852167B1 (en) * | 2002-03-08 | 2008-08-13 | 삼성전자주식회사 | Flat Panel Display Device |
| KR100840715B1 (en) * | 2002-05-28 | 2008-06-23 | 삼성전자주식회사 | Back light assembly and liquid crystal display having the same |
| JP2004037874A (en) * | 2002-07-03 | 2004-02-05 | Seiko Epson Corp | Electro-optic apparatus housed in packaging case and projection display apparatus |
| CN1742179A (en) * | 2003-01-29 | 2006-03-01 | 三菱丽阳株式会社 | Area light source |
| TWI357523B (en) * | 2003-03-10 | 2012-02-01 | Samsung Electronics Co Ltd | Backlight assembly, liquid crystal display apparat |
| CN1285003C (en) * | 2003-06-18 | 2006-11-15 | 统宝光电股份有限公司 | Backlight assembly |
| CN100368870C (en) * | 2004-12-10 | 2008-02-13 | 友达光电股份有限公司 | Liquid crystal display |
| CN100403118C (en) * | 2005-08-24 | 2008-07-16 | 友达光电股份有限公司 | Backlight module structure |
-
2006
- 2006-03-02 CN CNB2006100547235A patent/CN100388072C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561582B (en) * | 2008-04-17 | 2010-12-15 | 胜华科技股份有限公司 | Backlight module structure |
| US8419265B2 (en) | 2008-09-23 | 2013-04-16 | Au Optronics Corporation | Backlight module |
| CN103558705A (en) * | 2010-02-18 | 2014-02-05 | 株式会社日本显示器 | Liquid crystal display device |
| CN103558705B (en) * | 2010-02-18 | 2017-04-12 | 株式会社日本显示器 | Liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100388072C (en) | 2008-05-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |