CN102636908A - Display device and backlight module thereof - Google Patents
Display device and backlight module thereof Download PDFInfo
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- CN102636908A CN102636908A CN2011100391660A CN201110039166A CN102636908A CN 102636908 A CN102636908 A CN 102636908A CN 2011100391660 A CN2011100391660 A CN 2011100391660A CN 201110039166 A CN201110039166 A CN 201110039166A CN 102636908 A CN102636908 A CN 102636908A
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- soft board
- backlight module
- circuit soft
- bright dipping
- reverse side
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Abstract
A display device comprises a backlight module. The backlight module comprises a light source, a light-emitting surface, a light-emitting reverse surface and a circuit soft board, wherein the light-emitting reverse surface is positioned on the opposite surface of the light-emitting surface. The circuit soft board is electrically connected with the light source, and at least one part of the circuit soft board covers the light-emitting reverse side.
Description
Technical field
This case proposes a kind of backlight module, especially for the backlight module of liquid crystal indicator.
Background technology
Progress along with science and technology; And the lasting reduction of product price; The application of flat display apparatus, particularly liquid crystal indicator has become more and more general; Comprise monitor that computer uses, notebook computer, liquid crystal advertisement plate, LCD TV, liquid crystal digital photo frame, liquid crystal video-audio playing device, mobile phone, PDA(Personal Digital Assistant), portable navigation device etc.; Various application are too numerous to enumerate, and these application are almost omnipresent, become a part indispensable in people's daily life.Yet science and technology often comes from human nature, and vast consumption masses expect that still these liquid crystal indicators can be more good and cheap, more frivolous.So scientist and engineers be research and development constantly and innovation still, it is more superior that hope can be developed performance, and manufacturing cost can also maintain an equal level even more cheap product, satisfies the daily required of vast consumption masses.
Present Portable liquid crystal indicator on the market; For example: notebook computer, mobile phone, PDA(Personal Digital Assistant), Portable liquid crystal video-audio playing device (MP3, MPEG4 etc.), portable navigation device etc.; The mobile phone that all must carry and use particularly general popular every day etc., from the angle of carrying for a long time and frequently using, it still exists weight still light inadequately; Therefore the problem that thickness is still thin inadequately still has the suitable spatial value that improves to get scientific and technological expert and continue to make great efforts and break through.
Please refer to Fig. 1, it is the diagrammatic cross-section of known backlight modular structure, and wherein backlight module 100 comprises led light source 11, backboard (back cover) 10, and structure such as glue frame 15.Backlight module 100 whole thickness still approach inadequately, and weight is still light inadequately.
Summary of the invention
In order to address the above problem; The inventor reaches and tests many times and improve through deep study and analysis, develops brand-new display device and backlight module thereof finally; Has performance more frivolous on the structure; Simultaneously still can possess the display quality of otherwise superior, can effectively improve the problems referred to above, benefit vast consumer.
The present invention provides a kind of display device and backlight module thereof, has more frivolous structure.
This case provides a kind of display device, and it comprises a backlight module.This backlight module comprises a light source; One exiting surface; One bright dipping reverse side is positioned at the relative facade of this exiting surface; And a circuit soft board, be electrically connected with this light source, and this circuit soft board of at least a portion covers this bright dipping reverse side.
This case provides a kind of backlight module in addition, and it comprises an exiting surface; One bright dipping reverse side is positioned at the relative facade of this exiting surface; And a circuit soft board, wherein this circuit soft board of at least a portion covers this bright dipping reverse side.
Description of drawings
Fig. 1 is the diagrammatic cross-section of known backlight modular structure.
Fig. 2 A is the diagrammatic cross-section of the backlight module of one embodiment of the invention.
Fig. 2 B is the three-dimensional top view of the present invention's one present embodiment backlight module.
Fig. 3 A is the synoptic diagram that demonstrates the circuit soft board of pilot hole in one embodiment of the invention.
Fig. 3 B is the pilot hole of the circuit soft board among Fig. 3 A, and the enlarged diagram of locating convex block.
[main element symbol description]
10: backboard
11,21:LED light source
15,25: the glue frame
23: circuit soft board
23A: signal output part
24: reflective membrane
26: LGP
27A: pilot hole
27B: locating convex block
28A: bright dipping zone
28B: bright dipping reverse side zone
29A: exiting surface
29B: bright dipping reverse side
100,200; Backlight module
Embodiment
Please refer to Fig. 2 A, it is the diagrammatic cross-section of the backlight module of one embodiment of the invention.To be of a size of thickness relatively thin but length and width are relatively large many because of backlight module, convenient for explicit declaration, and avoids that length and width are thick to differ too big with the actual ratio chi, so the submarginal sectional view of display backlight module only.Shown in Fig. 2 A, wherein backlight module 200 has light-emittingdiode (LED) light source 21, circuit soft board 23, glue frame 25, reflectance coating 24, and LGP 26 etc.Backlight module 200 has exiting surface 29A, i.e. surface, the top of the backlight module 200 among the figure.Opposite (being reverse side) at the exiting surface 29A of backlight module 200 then is bright dipping reverse side 29B, the i.e. surface below of the backlight module 200 among the figure.Exiting surface 29A has output optical zone 28A, and it occupies the All Ranges of whole exiting surface 29A except that the edge usually.Bright dipping reverse side 29B then has size and bright dipping zone 28A quite (can be big slightly), and the position is arranged in the bright dipping reverse side zone 28B under the 28A of figure bright dipping zone.Led light source 21 emits beam, and via LGP 26 leaded lights and reflection, and light is penetrated equably up by bright dipping zone 28A.24 of reflectance coatings can be with in the light reflected back LGP 26 that down penetrates in the LGP 26.Above-mentioned led light source 21 can be designed to white light LEDs, also can be designed as the LED of ruddiness (R), green glow (G) and blue light (B) primaries of arrangement, and lights in turn fast.On the other hand, led light source 21 also can adopt other light sources, for example the light emitting source of cold cathode fluorescent lamp pipe (CCFL), organic light emitting diode (OLED) or other kinds.
Please refer to Fig. 2 A; Circuit soft board 23 is downward by the edge turnover of top exiting surface 29A; Through the bright dipping reverse side 29B of backlight module 200 side periphery to backlight module 200 bottoms (being the back side of the backlight module 200) turnover of turning right; Become horizontal direction to extend, and make the circuit soft board 23 of at least a portion cover the bright dipping reverse side zone 28B of bright dipping reverse side 29B, also can cover whole bright dipping reverse side 29B.Please make comparisons with the known technology of Fig. 1, present embodiment does not use the backboard 10 among Fig. 1, but covers the back side of backlight module with circuit soft board 23.Circuit soft board 23 can use the flexible print wiring soft board of being sold in the present market, and (Flexible Printed Circuit, FPC), because FPC is thin many than backboard 10, weight also alleviates much, so can significantly promote frivolous performance.On the other hand, because present embodiment does not need backboard, so can save the expense of backboard expense and mould thereof.Especially when product has multiple design size,,, can significantly save the die sinking expense so adopt the design of present embodiment because of every kind of size all needs its corresponding mould.
In the present embodiment, led light source 21 can directly be welded on the circuit soft board 23.Because known technology also need electrically connect liquid crystal cell element (cell) module and LED-backlit source by FPC; So present embodiment does not need extra material; But in design, cover the back side of backlight module 200 with larger area circuit soft board 23 (for example FPC), and replace the function of backboard.Because frivolous effect that present embodiment produced is very significantly, reduce more than the back plate thickness 0.2mm, be a big Gospel for carrying for a long time and using the user of display device (for example mobile phone).
For more clearly demonstrating present embodiment, please refer to Fig. 2 B, it is the three-dimensional top view of present embodiment backlight module.In Fig. 2 B, circuit soft board 23 in the edge of backlight module 200 upper surfaces (left among the figure) turnover downwards, and then turnover and make this circuit soft board 23 of at least a portion cover the back side (bottom surface among the figure) of backlight module 200.The outburst area 23A of circuit soft board 23 can be used as signal output part.
Fixing means about circuit soft board 23; Please refer to 3A and 3B figure; Circuit soft board 23 can be designed to have a plurality of pilot hole 27A (can be circle or other shapes); In the present embodiment, the pilot hole 27A that is designed to 4 circles is each positioned at 4 corners, and the glue frame 25 of backlight module 200 can be designed to have a plurality of locating convex block 27B of corresponding pilot hole 27A on the position.The size of locating convex block 27B can be slightly less than pilot hole 27A, so locating convex block 27B can place within the pilot hole 27A, and circuit soft board 23 is positioned on the glue frame 25.Size, shape, quantity and the position of above-mentioned pilot hole 27A and locating convex block 27B all can suitably change, as long as both change simultaneously accordingly.The mode of available gluing is fixed between circuit soft board 23 and the glue frame 25, with weight reduction.Certainly, also can select for use other fixed forms to assemble.
In the present embodiment, reflectance coating 24 can be a reflector plate, is fixed on the circuit soft board 23 with bonding or other modes.In addition, also can be formed directly on the circuit soft board 23 with reflectance coating 24 with modes such as vacuum splashing and plating, vapor depositions, can further alleviate the weight and the thickness of backlight module 200 this moment.
Below with more embodiment, the present invention is further described.
In the present invention the 1st embodiment, a kind of display device is provided, it comprises a backlight module.This backlight module comprises a light source; One exiting surface; One bright dipping reverse side is positioned at the relative facade of this exiting surface; And a circuit soft board, be electrically connected with this light source, and this circuit soft board of at least a portion covers this bright dipping reverse side.
In the present invention the 2nd embodiment; Wherein this exiting surface in the display device described in first embodiment comprises bright dipping zone; This bright dipping reverse side comprises the bright dipping reverse side zone corresponding to this bright dipping zone, and this circuit soft board of this at least a portion covers this bright dipping reverse side zone fully.
In the present invention the 3rd embodiment; Wherein as this light source in the display device described in the above-mentioned embodiment be disposed on the inner at least one edge of this backlight module, this light source be selected from the group that light-emittingdiode (LED), organic light emitting diode (OLED) and cold cathode fluorescent lamp pipe (CCFL) formed at least one of them.
In the present invention the 4th embodiment, wherein the display device described in above-mentioned embodiment comprises liquid crystal indicator.
In the present invention the 5th embodiment, wherein this backlight module in the display device described in above-mentioned embodiment also comprises a LGP and a glue frame, and the one edge of this circuit soft board is fixed between this LGP and this glue frame.
In the present invention the 6th embodiment, wherein this circuit soft board in the display device described in above-mentioned embodiment comprises a flexible print wiring soft board.
In the present invention the 7th embodiment, wherein this circuit soft board in the display device described in above-mentioned embodiment also has a plurality of pilot holes, and this glue frame has a plurality of locating convex blocks of position corresponding to this pilot hole, so that this circuit soft board is positioned on this glue frame.
In the present invention the 8th embodiment, wherein this circuit soft board in the display device described in above-mentioned embodiment also comprises a reflective membrane attached to it, to reflect the light of this light source.
In the present invention the 9th embodiment, a kind of backlight module is provided, it comprises an exiting surface; One bright dipping reverse side is positioned at the relative facade of this exiting surface; And a circuit soft board, wherein this circuit soft board of at least a portion covers this bright dipping reverse side.
In the present invention the 10th embodiment, wherein the backlight module described in above-mentioned embodiment also comprises a light source, and this light source is electrically connected with this circuit soft board.
Among the present invention the 11st embodiment; Wherein this exiting surface of the backlight module described in above-mentioned embodiment comprises bright dipping zone; This bright dipping reverse side comprises the bright dipping reverse side zone corresponding to this bright dipping zone, and this circuit soft board of this at least a portion covers this bright dipping reverse side zone fully.
Among the present invention the 12nd embodiment, wherein this light source in the backlight module described in above-mentioned embodiment is disposed on the inner at least one edge of this backlight module.
Among the present invention the 13rd embodiment, wherein as this light source in the backlight module described in the above-mentioned embodiment be selected from the group that light-emittingdiode (LED), organic light emitting diode (OLED) and cold cathode fluorescent lamp pipe (CCFL) formed at least one of them.
Among the present invention the 14th embodiment, wherein the backlight module described in above-mentioned embodiment is used for a display device, and this display device comprises liquid crystal indicator.
Among the present invention the 15th embodiment, wherein the backlight module described in above-mentioned embodiment also comprises a LGP and a glue frame, and the one edge of this circuit soft board is fixed between this LGP and this glue frame.
Among the present invention the 16th embodiment, wherein this circuit soft board in the backlight module described in above-mentioned embodiment is a flexible print wiring soft board.
Among the present invention the 17th embodiment, wherein this circuit soft board in the backlight module described in above-mentioned embodiment also has a plurality of pilot holes, and this glue frame has a plurality of locating convex blocks of position corresponding to this pilot hole, so that this circuit soft board is positioned on this glue frame.
Among the present invention the 18th embodiment, wherein this circuit soft board in the backlight module described in above-mentioned embodiment also comprises a reflective membrane attached to it, to reflect the light of this light source.
Comprehensively above-mentioned; The present invention proposes multiple display device and backlight module thereof, and circuit soft board is designed to the multi-functional that replaces backboard and have transmission of electric signals concurrently, can significantly reduce the thickness and the weight of backlight module; Reduce production costs; Be specially adapted to have the portable electronic product of display device, for example mobile phone, PDA(Personal Digital Assistant), Portable liquid crystal video-audio playing device etc. can be benefited vast use masses.
Though the present invention discloses preferred embodiment as above, so it is not that the present invention is any to know this art in order to limit, and is not breaking away from the spirit and scope of the present invention, changes and retouching when doing.Therefore protection scope of the present invention is as the criterion when defining with claim scope of the present invention.This case must be appointed and executes that the craftsman thinks and be to modify as all by being familiar with this art, right neither take off such as attach claim desire Protector.
Claims (10)
1. display device, it comprises:
One backlight module, it comprises:
One light source;
One exiting surface;
One bright dipping reverse side is positioned at the relative facade of this exiting surface; And
One circuit soft board is electrically connected with this light source, and this circuit soft board of at least a portion covers this bright dipping reverse side.
2. display device as claimed in claim 1, wherein this exiting surface comprises bright dipping zone, and this bright dipping reverse side comprises the bright dipping reverse side zone corresponding to this bright dipping zone, and this at least a portion circuit soft board covers this bright dipping reverse side zone fully.
3. display device as claimed in claim 1; Wherein this light source is disposed on the inner at least one edge of this backlight module; This light source be selected from the group that light-emittingdiode (LED), organic light emitting diode (OLED) and cold cathode fluorescent lamp pipe (CCFL) formed at least one of them, this display device comprises liquid crystal indicator.
4. display device as claimed in claim 1, wherein this backlight module also comprises a LGP and a glue frame, and the one edge of this circuit soft board is fixed between this LGP and this glue frame, and this circuit soft board is a flexible print wiring soft board.
5. display device as claimed in claim 4; Wherein this circuit soft board also has a plurality of pilot holes; This glue frame has a plurality of locating convex blocks of position corresponding to this pilot hole; So that this circuit soft board is positioned on this glue frame, this circuit soft board also comprises a reflective membrane attached to it, to reflect the light of this light source.
6. backlight module comprises:
One exiting surface;
One bright dipping reverse side is positioned at the relative facade of this exiting surface; And
One circuit soft board, wherein this circuit soft board of at least a portion covers this bright dipping reverse side.
7. backlight module as claimed in claim 6 also comprises:
One light source is electrically connected with this circuit soft board,
Wherein this exiting surface comprises bright dipping zone, and this bright dipping reverse side comprises the bright dipping reverse side zone corresponding to this bright dipping zone, and this circuit soft board of this at least a portion covers this bright dipping reverse side zone fully.
8. backlight module as claimed in claim 7; Wherein this light source is disposed on the inner at least one edge of this backlight module; This light source be selected from the group that light-emittingdiode (LED), organic light emitting diode (OLED) and cold cathode fluorescent lamp pipe (CCFL) formed at least one of them; This backlight module is used for a display device, and this display device comprises liquid crystal indicator.
9. backlight module as claimed in claim 6, wherein this backlight module also comprises a LGP and a glue frame, and the one edge of this circuit soft board is fixed between this LGP and this glue frame, and this circuit soft board is a flexible print wiring soft board.
10. backlight module as claimed in claim 9; Wherein this circuit soft board also has a plurality of pilot holes; This glue frame has a plurality of locating convex blocks of position corresponding to this pilot hole; So that this circuit soft board is positioned on this glue frame, this circuit soft board also comprises a reflective membrane attached to it, to reflect the light of this light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100391660A CN102636908A (en) | 2011-02-15 | 2011-02-15 | Display device and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100391660A CN102636908A (en) | 2011-02-15 | 2011-02-15 | Display device and backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102636908A true CN102636908A (en) | 2012-08-15 |
Family
ID=46621350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100391660A Pending CN102636908A (en) | 2011-02-15 | 2011-02-15 | Display device and backlight module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102636908A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177876A (en) * | 2002-11-29 | 2004-06-24 | Optrex Corp | Liquid crystal display |
| CN1881035A (en) * | 2005-06-17 | 2006-12-20 | 三星电子株式会社 | LCD device |
| CN1952750A (en) * | 2005-10-20 | 2007-04-25 | 株式会社日立显示器 | Liquid crystal display device |
| CN101303482A (en) * | 2007-05-10 | 2008-11-12 | 三星Sdi株式会社 | Liquid crystal display device |
| US20090262277A1 (en) * | 2008-04-18 | 2009-10-22 | Samsung Electronics Co., Ltd. | Flat panel display and method thereof |
-
2011
- 2011-02-15 CN CN2011100391660A patent/CN102636908A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177876A (en) * | 2002-11-29 | 2004-06-24 | Optrex Corp | Liquid crystal display |
| CN1881035A (en) * | 2005-06-17 | 2006-12-20 | 三星电子株式会社 | LCD device |
| CN1952750A (en) * | 2005-10-20 | 2007-04-25 | 株式会社日立显示器 | Liquid crystal display device |
| CN101303482A (en) * | 2007-05-10 | 2008-11-12 | 三星Sdi株式会社 | Liquid crystal display device |
| US20090262277A1 (en) * | 2008-04-18 | 2009-10-22 | Samsung Electronics Co., Ltd. | Flat panel display and method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |