CN1904695A - Reflective plate of backlight module - Google Patents
Reflective plate of backlight module Download PDFInfo
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- CN1904695A CN1904695A CN 200610110095 CN200610110095A CN1904695A CN 1904695 A CN1904695 A CN 1904695A CN 200610110095 CN200610110095 CN 200610110095 CN 200610110095 A CN200610110095 A CN 200610110095A CN 1904695 A CN1904695 A CN 1904695A
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- reflecting plate
- backlight module
- module according
- protuberance
- described groove
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Abstract
The invention relates to a reflecting board of backlight module that could be used to support luminous tube in backlight module. The reflecting board has plural sallies that each has plural flutes to contain luminous tube. A supporting section that has base section and top column section would be added to reflecting board. The base section is set in one of sallies to support at least one optical film.
Description
Technical field
The invention relates to a kind of reflecting plate of backlight module, and particularly relevant for a kind of reflecting plate device with supporting role.
Background technology
LCD (liquid crystal display; Advantage such as LCD) have that in light weight, low power consumption, effective area are big, zero radiation and image quality are meticulous, therefore between short many decades, be widely used in communication, information and the life staying idle at home field, as mobile phone, wireless telephone, facsimile recorder, industrial instruments, machinery and audio-visual household electrical appliances etc.Because liquid crystal itself is not luminous, needing provides panel required brightness by backlight, so backlight module is one of key part and component of panel of LCD.
The structure of backlight module can be divided into two kinds on side-light type structure and full run-down type structure.The light emitting source of side-light type structure is the single Zhi Guangyuan that utilizes side, the light of side being penetrated with light guide plate reflexes to panel front, have characteristics such as light weight, slim, narrow frameization, low power consumption, be applicable to the display device that small-medium size is provided, for example the light source of mobile phone, PDA(Personal Digital Assistant), notebook computer.The multimedia playing apparatus of large-size, LCD TV etc. for example then needs the backlight module of oversize, is suitable for not contain light guide plate and the light source full run-down type structure under being positioned over, and can take advantage on brightness and weight.
At present, in the application of large size panel, because cold cathode fluorescent lamp (cold cathode fluorescentlamp; CCFL) than light emitting diode (light-emitting diode; LED) possess the advantage of price, so cold cathode fluorescent lamp still is the main light source of large-scale LCD panel.Under the trend of large scale and low price, backlight module must possess big picture, in light weight, slimming, power consumption is low, brightness is high and cost is low market demands.Because backlight module need utilize stacked blooming piece to cooperate light source and reflecting plate to reduce the light consume and the planar light source of even and high brightness is provided, therefore the multiple element of backlight module being integrated to reduce thickness and complex manufacturing technology degree, is the direction of making great efforts at present.
Summary of the invention
A purpose of the present invention is to provide a kind of reflecting plate of backlight module, can utilize reflecting plate to form integrated lamp tube supporting structure, in order to improve the complicated low production efficiency that is caused of supporting construction element assembling of traditional backlight module and expensive shortcoming.
Another object of the present invention provides a kind of reflecting plate of backlight module, has a support column device, and the lamp tube supporting structure that the collocation reflecting plate forms with the blooming piece of support luminous tube top, replaces the supporting construction of traditional large size back light module.
According to above-mentioned purpose of the present invention, a kind of reflecting plate of backlight module is proposed, be used to be installed in the lamp box bottom of backlight module, can have the function of reflection ray and support luminous tube concurrently.
According to a preferred embodiment of the invention, said reflection plate has a plurality of protuberances, and respectively have a plurality of grooves on each protuberance, fluorescent tube can be placed in the groove, make fluorescent tube roughly become arranged perpendicular with protuberance, the reflecting plate and the fluorescent tube support function of backlight module are integrated, replaced the lamp tube supporting structure of general straight-down negative design.
According to another preferred embodiment of the invention, the broken line that can utilize in advance design with the reflecting plate bending forming protuberance, or with the hot pressing mode moulding.The shape of protuberance can be up-narrow and down-wide.The bottom of groove can be the different shape of rectangle, circle or V-arrangement or the like, and its cell wall can be the hollow out cell wall, or is arcuation, wide at the top and narrow at the bottom, up-narrow and down-wide or wide up and down.
According to another preferred embodiment of the invention, the cell wall of above-mentioned groove has more a clamping part in order to fasten fluorescent tube, and the longitudinal section of clamping part can be rectangle, arc or triangle.
According to a preferred embodiment of the invention, the material of said reflection plate is PET material or silicon, and the color of reflecting plate can be white.In addition, the reflecting plate surface can have a metal film, in order to increase the utilization factor of light.
According to above-mentioned purpose of the present invention, a kind of reflecting plate of backlight module is proposed, have a support portion, can be assembled in protuberance.Above-mentioned support portion comprises a pedestal and a fore-set part, and the end face of pedestal and bottom surface are rectangle, and the side is that light leak can be avoided in four rectangle inclined-planes; Fore-set partly is one by the upwardly extending structure of the end face of pedestal.Pedestal is arranged in one of reflecting plate protuberance, and fits with the end face of pedestal and the lower surface of two side surfaces and reflecting plate protuberance, and the reflecting plate protuberance also has perforate, can make fore-set part perforate protrusion thus, in order to the blooming piece of support luminous tube top.
According to another preferred embodiment of the invention, can utilize the reflecting plate protuberance and the fluorescent tube of array, several support portions of arranging in pairs or groups form the supporting construction of large size back light module.Elder generation is fixed on the lamp box bottom with the support portion during assembling, and reflecting plate is fitted gets final product again, not only simplifies the assembling manufacture craft, has more the effect of reflection, support luminous tube and support top blooming simultaneously.
As known from the above, the present invention has following at least advantage:
Reflecting plate of the present invention removes and can reduce the supporting construction number of elements with the dual-use function of reflection ray and support luminous tube, reduces outside assembling complexity and the production cost, more can reach to promote product slimming and light-weighted requirement.
The reflecting plate of the present invention supporting construction that the support portion is formed of can arranging in pairs or groups, blooming piece with support luminous tube and top, have the effect of reflection, support luminous tube and support top blooming, except that the supporting construction that can replace traditional large size back light module, have more the advantage that manufacture craft is oversimplified.
For making constitutive characteristic of the present invention, method of operating, purpose and advantage be more prone to understand, below will describe embodiments of the invention in detail with the character narrate conjunction with figs..
Description of drawings
Fig. 1 is for illustrating the synoptic diagram of backlight module supporting construction preferred embodiment according to the present invention.
Fig. 2 for illustrate according to the present invention the fluorescent tube bracing or strutting arrangement the synoptic diagram of projective structure preferred embodiment.
Fig. 3 A is the synoptic diagram of the rectangular recess preferred embodiment of the reflecting plate that illustrates according to the present invention.
Fig. 3 B is the synoptic diagram of another preferred embodiment of rectangular recess of the reflecting plate that illustrates according to the present invention.
Fig. 3 C is the synoptic diagram of the circular groove preferred embodiment of the reflecting plate that illustrates according to the present invention.
Fig. 4 A is the synoptic diagram of the groove preferred embodiment with clamping part that illustrates according to the present invention.
Fig. 4 B is the synoptic diagram of another preferred embodiment of groove with clamping part that illustrates according to the present invention.
Fig. 4 C is to the longitudinal section of Fig. 4 F for the groove preferred embodiment with difformity clamping part that illustrates according to the present invention.
Fig. 5 is the synoptic diagram of the reflecting plate preferred embodiment with broken line and perforate that illustrates according to the present invention.
Fig. 6 A is the synoptic diagram of the support portion preferred embodiment that illustrates according to the present invention.
Fig. 6 B is the synoptic diagram of the fluorescent tube bracing or strutting arrangement preferred embodiment with support portion that illustrates according to the present invention.
Fig. 7 is the sectional view of the fluorescent tube bracing or strutting arrangement preferred embodiment that illustrates according to the present invention.
The main element symbol description
100: lamp box 110: fluorescent tube
120: reflecting plate 121: protuberance
210: groove 310a: groove
310b: groove 310c: groove
321a: protuberance 321b: protuberance
321c: protuberance 410a: groove
410b: groove 411a: clamping part
411b: clamping part 421: protuberance
510: recessed broken line 520: protruding broken line
530: groove perforate 540: the protuberance perforate
550: support portion perforate 610: support portion
612: pedestal 614: the fore-set part
620: fluorescent tube 710: metal film
720: diffusion barrier 730: bright enhancement film
Embodiment
Fig. 1 illustrates the synoptic diagram of a preferred embodiment of backlight module supporting construction of the present invention.The backlight module supporting construction comprises a lamp box 100, a reflecting plate 120, a plurality of protuberance 121 and many tubes 110.
Wherein, respectively have a plurality of grooves on each protuberance 121, fluorescent tube 110 can be placed in the groove, makes fluorescent tube roughly become arranged perpendicular with protuberance.Reflecting plate 120 has a upper surface and a lower surface, and wherein lower surface contacts and fit in lamp box 110 inner faces with lamp box 110.
Fig. 2 illustrates the synoptic diagram of the projective structure preferred embodiment of fluorescent tube bracing or strutting arrangement of the present invention.
The upper surface of reflecting plate 120 comprises a planar portions, has first opposite side that extends towards as shown in the figure Y direction, and second opposite side that extends towards X-direction as shown in the figure.
According to a preferred embodiment of the invention, the material of reflecting plate can be PET material or silicon, and the color of reflecting plate can be white or light color system.In addition, a metal film can be selected to be coated with in the reflecting plate surface, in order to increase the utilization factor of light.
According to a preferred embodiment of the invention, the shape of protuberance 121 and groove 210 can design according to need, and makes reflecting plate form supporting construction with hot pressing mode.Please refer to Fig. 3 A to Fig. 3 C, the shape of protuberance 121 can be up-narrow and down-wide or wide up and down, and its end face width is about 0 to 2 millimeter.The bottom of groove 210 can be designed to different shape, for example rectangle or circle.The cell wall of groove 210 can be arcuation; The cross section of cell wall can be triangle or rectangle wide at the top and narrow at the bottom, up-narrow and down-wide or wide up and down.
Fig. 3 A illustrates the synoptic diagram that the present invention has the protuberance preferred embodiment of rectangular recess.Protuberance 321a has a groove 310a, and its further groove 310c is wide up and down, and bottom land can be rectangle, and the longitudinal section of its cell wall can be triangle or rectangle, about 0 to 2 millimeter of the width of end face.
Fig. 3 B illustrates the synoptic diagram that the present invention has the protuberance preferred embodiment of rectangular recess.Protuberance 321b has a groove 310b, and its further groove 310b is wide at the top and narrow at the bottom, and bottom land can be rectangle, and the longitudinal section of its cell wall can be triangle or rectangle, about 0 to 2 millimeter of the width of end face.
Fig. 3 C illustrates the synoptic diagram that the present invention has the protuberance preferred embodiment of circular groove.Protuberance 321c has a groove 310c, and its further groove 310c is circular, and its bottom land can be circular arc, and its cell wall is an arcuation.
According to another preferred embodiment of the invention, the cell wall of groove can additionally be provided with a clamping part, in order to fasten fluorescent tube.
Fig. 4 A illustrates a kind of synoptic diagram with groove of clamping part.Protuberance 421 has a groove 410a, and the longitudinal section of its cell wall can be rectangle, and a clamping part 411a is attached on the cell wall, and the shape of clamping part 411a can be rectangle or other shapes, and width can be slightly less than the width of cell wall.
Fig. 4 B illustrates the present invention, and another has the synoptic diagram of the groove preferred embodiment of clamping part.Protuberance 421 has a groove 410b, and the longitudinal section of its cell wall can be rectangle, and a clamping part 411b is attached on the cell wall, and the shape of clamping part 411b can be rectangle or other shapes, and width can equate with the width of cell wall, in order to the position of fixed lamp tube.
According to a preferred embodiment of the invention, the shape of clamping part can be rectangle or other shapes, utilizes the mode reflecting plate direct heat is molded or that paste to form the protrusion buckle structure that is positioned on the cell wall.To shown in Fig. 4 F, the longitudinal section of clamping part can be rectangle, arc or triangle as Fig. 4 C.
According to another preferred embodiment of the invention, the broken line that also can utilize in advance design is the reflecting plate bending, with form protuberance and on groove.
Fig. 5 illustrates the floor map of preferred embodiment that the present invention has the reflecting plate of broken line and perforate.Reflecting plate 120 can comprise a paired and parallel each other recessed broken line 510, and at least one protruding broken line 520, wherein two recessed broken lines 510 are positioned at the outside of protruding broken line 520, and recessed broken line 510 is parallel each other with protruding broken line 520, to utilize recessed broken line 510 and protruding broken line 520 reflecting plate is converted into a spatial structure.
In addition, can have a plurality of groove perforates 530 and protuberance perforate 540 on the protruding broken line 520, can form groove by this groove perforate 530 of cutting and protuberance perforate 540 with hollow out cell wall.The end face of protuberance has more many support portions perforate 550, uses the fore-set for a support portion partly to protrude outside this reflecting plate 120.
In addition, reflecting plate of the present invention can be applicable to the backlight module of oversize (for example more than 32 inches) panel.According to a preferred embodiment of the invention, can add a support portion device, be assembled in the protuberance of reflecting plate, in order to the blooming piece of support luminous tube top, to be applied to the backlight module of oversize.
Fig. 6 A is the structural representation of the preferred embodiment of support portion of the present invention.Support portion 610 comprises pedestal 612 and fore-set part 614, and the end face and the bottom surface of pedestal 612 can be rectangle, and fore-set part 614 is one by the upwardly extending structure of the end face of pedestal 612.According to a preferred embodiment of the invention, the top area of pedestal 612 is slightly less than floorage, makes the side surface of its four rectangles form the dip plane.
Fig. 6 B illustrates the synoptic diagram of preferred embodiment that the present invention has the fluorescent tube bracing or strutting arrangement of support portion.Reflecting plate 120 is to form a protuberance with broken line or hot pressing mode, forms the two sides of extending towards Z-direction shown in the figure between recessed broken line 510 and the protruding broken line 520, and these two sides can be the dip plane and cooperate the shape of the pedestal 612 of support portion; Article two, can form a protuberance end face that is roughly parallel to the X-axis shown in the figure between the protruding broken line 520, end face has a plurality of perforates, protrudes for the fore-set part 614 of support portion 610.
The pedestal 612 of support portion 610 can be arranged in one of protuberance, and fits with the end face of pedestal and the lower surface of two side surfaces and reflecting plate protuberance, and light leak can be avoided in the rectangle inclined-plane of pedestal 612.Fore-set part 614 is protruded by the support portion perforate 550 of reflecting plate protuberance, can be in order to the blooming piece of support luminous tube top.
Fig. 7 illustrates the sectional view of the preferred embodiment of fluorescent tube bracing or strutting arrangement of the present invention.Reflecting plate 120 has a protuberance, has a plurality of grooves on it, and the end face of groove can have a metal film 710.Protuberance 121 is extending towards the Y direction shown in the figure, and many tubes 620 to be being placed in the groove towards the X-direction shown in the figure, and roughly becomes arranged perpendicular with protuberance.The fore-set part 614 of support portion is protruded the diffusion barrier 720 of support luminous tube 620 tops and bright enhancement film 730 toward Z-direction self-supporting portion perforate 550.
According to a preferred embodiment of the invention, can utilize array reflecting plate protuberance 121 and fluorescent tube 620, several support portions 610 of arranging in pairs or groups form the supporting construction of large size back light module.During assembling, elder generation is fixed on the lamp box bottom with support portion 610, and reflecting plate 120 is fitted gets final product again, so can avoid producing shadow (mura), not only simplifies the assembling manufacture craft, has more effects such as reflection, support luminous tube and support top blooming simultaneously.
By the invention described above preferred embodiment as can be known, reflecting plate supporting construction of the present invention has the function of reflection ray and support luminous tube concurrently, the collocation support portion more can possess the function that supports the required blooming of lamp backlight module, the supporting construction that can replace traditional large size back light module, not only can reduce the complex manufacturing technology degree, more can promote luminescence efficiency, reduce backlight module thickness, reach in light weight, the thin typeization of large size panel and the requirement of big picture.
Though the present invention with preferred embodiment openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (32)
1. the reflecting plate of a backlight module is applicable to and supports many tubes, it is characterized in that:
This reflecting plate has a plurality of protuberances, and described protuberance is roughly vertical with described fluorescent tube, and described protuberance respectively has a plurality of grooves, and described fluorescent tube is installed in the described groove.
2. the reflecting plate of backlight module according to claim 1 is characterized in that, described protuberance is up-narrow and down-wide.
3. the reflecting plate of backlight module according to claim 1 is characterized in that, about 0 to 2 millimeter of the top width of described protuberance.
4. the reflecting plate of backlight module according to claim 1 and 2 is characterized in that, the bottom of described groove is a rectangle.
5. the reflecting plate of backlight module according to claim 1 and 2 is characterized in that, the bottom of described groove is circular.
6. the reflecting plate of backlight module according to claim 1 is characterized in that, described groove is wide at the top and narrow at the bottom.
7. the reflecting plate of backlight module according to claim 6 is characterized in that, the cell wall of described groove has at least one clamping part.
8. the reflecting plate of backlight module according to claim 1 is characterized in that, described groove is wide up and down.
9. the reflecting plate of backlight module according to claim 8 is characterized in that, the cell wall of described groove has at least one clamping part.
10. according to the reflecting plate of claim 7 or 9 described backlight modules, it is characterized in that the longitudinal section of described clamping part is rectangle, arc or triangle.
11. the reflecting plate of backlight module according to claim 1 is characterized in that, the cell wall of described groove is an arcuation.
12. the reflecting plate of backlight module according to claim 11 is characterized in that, and is wide in narrow on the described groove.
13. the reflecting plate of backlight module according to claim 1 is characterized in that, described groove has the hollow out cell wall.
14. the reflecting plate of backlight module according to claim 1 is characterized in that, described protuberance has one of at least a perforate.
15. the reflecting plate of backlight module according to claim 14 is characterized in that, also comprises a support portion, is arranged in one of described protuberance, and is protruded by this perforate.
16. the reflecting plate of backlight module according to claim 15 is characterized in that, this support portion comprises:
One pedestal; And
One fore-set, the end face of this pedestal extends upward certainly.
17. the reflecting plate of backlight module according to claim 16 is characterized in that, an end face of this pedestal and a lower surface of two side surfaces and this reflecting plate are fitted.
18. the reflecting plate of backlight module according to claim 1 is characterized in that, the material of this reflecting plate is the PET material.
19. the reflecting plate of backlight module according to claim 1 is characterized in that, the material of this reflecting plate is a silicon.
20. the reflecting plate according to claim 18 or 19 described backlight modules is characterized in that, the color of this reflecting plate is a white.
21. the reflecting plate according to claim 18 or 19 described backlight modules is characterized in that, a upper surface of this reflecting plate has a metal film.
22. a backlight module comprises:
One housing;
At least one blooming;
One reflecting plate is arranged on the bottom of this housing, and this reflecting plate has a plurality of protuberances, and described protuberance respectively has a plurality of grooves, and described protuberance has one of at least a perforate;
A plurality of fluorescent tubes are installed in the described groove, and roughly vertical with described protuberance; And
One support portion is arranged in one of described protuberance, and is protruded by this perforate, so as to supporting this at least one blooming.
23. backlight module according to claim 22 is characterized in that, the top width of described protuberance is less than about 2 millimeters.
24. backlight module according to claim 22 is characterized in that, this support portion comprises:
One pedestal; And
One fore-set, the end face of this pedestal extends upward certainly.
25. backlight module according to claim 24 is characterized in that, an end face of this pedestal and a lower surface of two side surfaces and this reflecting plate are fitted.
26. backlight module according to claim 22 is characterized in that, the bottom of described groove is a rectangle.
27. backlight module according to claim 22 is characterized in that, the cell wall of described groove has at least one clamping part.
28. backlight module according to claim 27 is characterized in that, the longitudinal section of this at least one clamping part is rectangle, arc or triangle.
29. backlight module according to claim 22 is characterized in that, the material of this reflecting plate is PET material or silicon.
30. backlight module according to claim 29 is characterized in that, a upper surface of this reflecting plate has a metal film.
31. backlight module according to claim 22 is characterized in that, this blooming is a diffusion barrier.
32. backlight module according to claim 22 is characterized in that, this blooming is a bright enhancement film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101100958A CN100412653C (en) | 2006-08-08 | 2006-08-08 | Reflective plate of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101100958A CN100412653C (en) | 2006-08-08 | 2006-08-08 | Reflective plate of backlight module |
Publications (2)
| Publication Number | Publication Date |
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| CN1904695A true CN1904695A (en) | 2007-01-31 |
| CN100412653C CN100412653C (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101100958A Active CN100412653C (en) | 2006-08-08 | 2006-08-08 | Reflective plate of backlight module |
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| CN (1) | CN100412653C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703678A (en) * | 2017-09-11 | 2018-02-16 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN110033715A (en) * | 2019-03-31 | 2019-07-19 | 湖南凯星电子科技有限公司 | A kind of back light unit for the uniform module lamp box that shines |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776249B (en) * | 2010-01-18 | 2012-02-01 | 友达光电（苏州）有限公司 | Supporting mechanism and back light device using same |
| CN101788119B (en) * | 2010-03-18 | 2011-08-17 | 友达光电股份有限公司 | Backlight module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3515035B2 (en) * | 2000-01-31 | 2004-04-05 | シャープ株式会社 | Backlight device and display device |
| JP2004102119A (en) * | 2002-09-12 | 2004-04-02 | Kodama Chemical Industry Co Ltd | Reflector for direct backlight of liquid crystal display device |
| JP4157044B2 (en) * | 2004-01-14 | 2008-09-24 | シャープ株式会社 | Light source support and backlight device |
| CN100487537C (en) * | 2004-03-05 | 2009-05-13 | 友达光电股份有限公司 | Direct down type backlight assembly and its assembling method |
| JP3653273B2 (en) * | 2004-06-29 | 2005-05-25 | シャープ株式会社 | Lamp holder, backlight device and liquid crystal display device |
| CN100449375C (en) * | 2004-08-25 | 2009-01-07 | 友达光电股份有限公司 | Liquid crystal display and its back light module |
| JP3854625B2 (en) * | 2005-12-12 | 2006-12-06 | シャープ株式会社 | Method for attaching clip with protrusion, method for manufacturing backlight device or liquid crystal display device, method for replacing reflecting member |
-
2006
- 2006-08-08 CN CNB2006101100958A patent/CN100412653C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703678A (en) * | 2017-09-11 | 2018-02-16 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN110033715A (en) * | 2019-03-31 | 2019-07-19 | 湖南凯星电子科技有限公司 | A kind of back light unit for the uniform module lamp box that shines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100412653C (en) | 2008-08-20 |
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