CN101131500A - Light source fixing structure of backlight component - Google Patents
Light source fixing structure of backlight component Download PDFInfo
- Publication number
- CN101131500A CN101131500A CNA2006101262435A CN200610126243A CN101131500A CN 101131500 A CN101131500 A CN 101131500A CN A2006101262435 A CNA2006101262435 A CN A2006101262435A CN 200610126243 A CN200610126243 A CN 200610126243A CN 101131500 A CN101131500 A CN 101131500A
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- light
- backlight assembly
- light source
- fixing structure
- source fixing
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Abstract
A kind of light source fixation structure of the negative phototropism units, includes: a light plate, has a enter light face; a cover, has a hold flute, the hold flute has a plane face to the enter light face of the light plate; and a bar lighting element, it is hold in the plane of the hold flute, when the bar lighting element is broke, it can slip along the hold flute and been draw-off, the cover can not only strengthen the negative phototropism units whole structure, the bar light element can increase the heating area by the cover, to avoid the temperature of the negative phototropism units overtop.
Description
Technical field
The present invention particularly provides a kind of light source fixing structure of backlight assembly about a kind of backlight assembly.
Background technology
Backlight assembly (backlight module) is LCD (liquid crystal display, LCD) one of key part and component, (personal digitalassistant is PDA) and on the flat-surface television to be widely used in digital camera, personal digital assistant at present.Generally speaking, backlight assembly is located at display panel below usually, and have a light source and a light guide plate (guide light plate, LGP), in order to provide homodisperse light in display panel.According to the light source position, backlight assembly can be divided into side-light type (edge light type orside light type) and straight-down negative (bottom light type or direct light type) usually.
In addition, the light source of backlight assembly can be cathode fluorescent tube (cold cathode fluoresce lamp, CCFL) or light emitting diode (light emitting diode, LED), wherein CCFL is a linear light sources, LED is a point source of light then, and the light that light source produced can enter light guide plate via reflex housing.Figure 1A is the cut-open view for the LED-backlit assembly of prior art, and backlight assembly 10 comprises a light guide plate 20, a light emitting diode 30 and a circuit board 40.Wherein light guide plate 20 is placed in the housing 50, and the side of housing 50 has a plurality of grooves 51; And light emitting diode 30 is arranged on the circuit board 40 with a plurality of protuberances 41, wherein the protuberance 41 on the circuit board 40 just can with groove 51 closings on the housing 50, utilization is arranged at housing 50 sides to provide light guide plate 20 sidelight sources with circuit board 40, yet, when the light emitting diode on the circuit board 40 30 damaged, circuit board 40 was substituted difficult.In another prior art, shown in Figure 1B, backlight assembly 12 comprises light guide plate 22 and light emitting diode 32, wherein light emitting diode 32 is fixed on the bendable printed circuit board (PCB) 42, utilize the characteristic of bendable printed circuit board (PCB) 42 flexibles that light emitting diode 32 is arranged at glue frame 52 breach to provide light guide plate 22 sidelight sources, but bendable printed circuit board (PCB) 42 thermal diffusivities are not good, in case the running time is long, temperature is too high near easily causing light source, and this kind backlight assembly 12 probably has the doubt of structural strength deficiency.
Summary of the invention
In view of this, The present invention be directed to above-mentioned puzzlement, propose a kind of light source fixing structure of backlight assembly, to solve the above problems.
A purpose of the present invention provides a kind of light source fixing structure of backlight assembly, and the strip light-emitting component that utilization can produce pointolite replaces fluorescent tube and cooperates cover body in order to backlight assembly sidelight source to be provided, thus on cover body, need not coating reflection layer, with the minimizing cost of manufacture.
Another object of the present invention provides a kind of light source fixing structure of backlight assembly, beats rib and form containing groove on cover body, and the strip light-emitting component is slided, to form the mechanism that to substitute, when the strip light-emitting component need be repaired, directly substitute, to reduce repair time and to reduce cost.
A further object of the present invention provides a kind of light source fixing structure of backlight assembly, the cover body that is made of the good metal of the substrate that metal constituted of tool high conductance collocation thermal diffusivity is in order to reduce the temperature of backlight assembly, and cover body Strengthenable backlight assembly intensity, and fixing strip light-emitting component, to improve reliability.
According to the light source fixing structure that a kind of backlight assembly is provided of the present invention, comprise a light guide plate, have an incidence surface; One cover body, it has a containing groove, and this containing groove has the plane of one day to the light guide plate incidence surface; And a strip light-emitting component, it is placed on the plane of containing groove.
Below by the detailed description of conjunction with figs., when the effect that can be easier to understand purpose of the present invention, technology contents, characteristics and be reached to specific embodiments of the invention.
Description of drawings
Figure 1A is the cut-open view of the LED-backlit assembly of prior art.
Figure 1B is the cut-open view of the LED-backlit assembly of prior art.
Fig. 2 A is the structure cut-open view of strip light-emitting component of the backlight assembly of the first embodiment of the present invention.
Fig. 2 B is the structure cut-open view of cover body of the backlight assembly of the first embodiment of the present invention.
Fig. 2 C is the light source fixing structure cut-open view of the backlight assembly of the first embodiment of the present invention.
Fig. 3 A is the light source fixing structure cut-open view of the backlight assembly of the second embodiment of the present invention.
Fig. 3 B is the front view of the present invention according to the cover body of the embodiment of Fig. 3 A.
Fig. 3 C is the cover body front view of the present invention according to the modification of the embodiment of Fig. 3 A.
Fig. 3 D is the cover body cut-open view of light source fixing structure of the backlight assembly of the third embodiment of the present invention.
Fig. 4 is the light source fixing structure stereographic map of the backlight assembly of the fourth embodiment of the present invention.
Fig. 5 is the backlight assembly cut-open view of fifth embodiment of the invention.
Embodiment
Below utilize several optimum examples that backlight assembly light source fixing structure of the present invention is described.At first, see also Fig. 2 A, Fig. 2 A is the strip light-emitting component cut-open view of the backlight assembly of the first embodiment of the present invention.As shown in the figure, strip light-emitting component 120 comprises a substrate 122, and for example printed circuit board (PCB) is fixed at least one light emitting diode 124 of substrate 122 1 sides with utilizing existing mode.In an embodiment, also comprise the metal substrate 126 of a high conductance, for example aluminium base or copper base are attached at substrate 122 times, to increase the thermal diffusivity of strip light-emitting component 120.Wherein light emitting diode 124 be fixed on the substrate 122 the position without limits.Then, see also Fig. 2 B, cover body 130, comprise the good metal of thermal diffusivity, aluminium material for example, its inner rim 131 has a containing groove 132, and wherein containing groove 132 has the plane 135 of one day to light guide plate (not shown) incidence surface, and it inserts setting for the strip light-emitting component shown in Fig. 2 A 120 and is fixed in the cover body 130.In an embodiment, the forming mode of containing groove 132 comprises the outer rim 133 of punching press cover body 130.Please consult Fig. 2 C again, it is the cut-open view of 130 groups of the cover bodies that illustrated of the strip light-emitting component 120 that illustrated by Fig. 2 A and Fig. 2 B light source fixing structure after upright.As shown in the figure, strip light-emitting component 120 can utilize the containing groove 132 of cover body 130 inner edges 131 to be fastened in the cover body 130, and along containing groove 132 pulls, strip light-emitting component 120 can be replaced arbitrarily.In an embodiment, also can utilize and screw togather element, for example screw locks cover body 130 and strip light-emitting component 120, to increase assembly intensity.
Fig. 3 A to Fig. 3 D is in order to the different structure synoptic diagram of the cover body of explanation second embodiment of the invention and the 3rd embodiment backlight assembly light source fixing structure.As shown in Figure 3A, different with first embodiment is, the containing groove 132 of cover body 130 inner edges 131, can utilize at least one fin 134 to protrude cover body 130 inner edges 131 forms, wherein containing groove 132 has the plane 135 of one day to light guide plate (not shown) incidence surface, and it can and be fixed in the cover body 130 for the 120 insertion settings of the strip light-emitting component shown in Fig. 2 A.Fig. 3 B and Fig. 3 C are the front views of the cover body 130 that illustrated of Fig. 3 A, a plurality of independently projections that the strip structure that fin 134 can be shown in Fig. 3 B also can be illustrated as Fig. 3 C, and the shape of fin 134 is not limited to shown in the figure.In addition, in the 3rd embodiment, illustrate as Fig. 3 D, the containing groove 132 of cover body 130 inner edges 131 can be that directly recessed cover body 130 inner edges 131 form, and the form of containing groove 132 is not limited among the figure and illustrates.So long as can form a containing groove 132 at inner edge 131, do not break away from spiritual place of the present invention in order to the ccontaining and fixing structure of strip light-emitting component 120 (shown in Fig. 2 A) as cover body 130.
In the 4th embodiment, please refer to shown in Figure 4, it is that the cover body 130 that is illustrated with Fig. 2 B is an example, for making strip light-emitting component 120 can more firmly be arranged in the cover body 130, the light source fixing structure of backlight assembly of the present invention also comprises at least one curved pawl 160 and is arranged at cover body 130 two ends, in order to fixing strip light-emitting component 120, also comprise a plurality of elements that screw togather in addition, screw for example, be arranged at the gap of 124 of cover body 130 two ends or wantonly two light emitting diodes, in order to link strip light-emitting component 120 and cover body 130.
Continue, see also Fig. 5, Fig. 5 is the backlight assembly cut-open view of the fifth embodiment of the present invention.Backlight assembly 100 comprises a light guide plate 110 and as described strip light-emitting component 120 of above-mentioned embodiment and cover body 130.Wherein light guide plate 110 has an incidence surface 112; Containing groove 132 on the cover body 130 has the plane 135 of one day to light guide plate 110 incidence surfaces 112, and wherein strip light-emitting component 120 is arranged on the plane 135 of containing groove 132.Glue frame 140 by backlight assembly, strip light-emitting component 120 can be arranged at light guide plate 110 sides, in order to incidence surface 112 incident light sources that light guide plate 110 is provided, describe as the foregoing description, strip light-emitting component 120 is by a substrate 122, printed circuit board (PCB) for example, and a plurality of light emitting diodes 124 that are fixed on the substrate 122 are formed, in an embodiment, also comprise the good metal substrate of a thermal conductivity 126 (shown in Fig. 2 A) in substrate 122 times, this metal substrate 126 for example is aluminium base or copper base, to increase the thermal diffusivity of strip light-emitting component 120.As shown in the figure, cover body 130 is made of the metal with thermal diffusivity, aluminium material for example, having a containing groove 132 inserts for strip light-emitting components 120 and is provided with and is fixed in the cover body 130, and describe as the foregoing description, cover body 130 two ends also comprise at least one curved pawl (for example shown in Figure 4) or a plurality of element (not shown) that screws togather, this screws togather element for example is screw, in order to fixing strip light-emitting component 120, in an embodiment, the substrate 122 of strip light-emitting component 120 and the position that curved pawl 160 (as shown in Figure 4) contacts can be done the ground connection design.In this embodiment, also comprise a plurality of blooming pieces 170 and be arranged at light guide plate 110 tops, in order to luminous energy is evenly distributed on the whole exiting surface, provide display panel illumination required brightness quality.
Comprehensively above-mentioned, the invention provides a kind of light source fixing structure of backlight assembly, be to replace fluorescent tube, and cooperate cover body in order to backlight assembly sidelight source to be provided with the strip light-emitting component that produces pointolite, so on cover body, need not coating reflection layer, can reduce cost of manufacture.Moreover, beating rib formation containing groove on cover body makes things convenient for the strip light-emitting component to slide, cause to form the mechanism that to substitute, when the strip light-emitting component need be repaired, can reduce repair time and reduce cost, the cover body that the good metal of substrate collocation thermal diffusivity that is constituted by tool high conductance metal in addition constitutes, cause substrate that heat conduction to the cover body of light-emitting component is reduced the temperature of backlight assembly, and, cover body Strengthenable backlight assembly intensity, and fixing strip light-emitting component, raising property relies degree.
The above is by embodiment characteristics of the present invention to be described, its purpose is familiar with the present technique personnel and can Liao be separated content of the present invention and implement according to this making, and non-limiting claim of the present invention, all other do not break away from equivalence modification or the modification that disclosed spirit is finished, and must be included in the application's claim scope of the following stated.
Claims (10)
1. the light source fixing structure of a backlight assembly comprises:
One light guide plate, it has an incidence surface;
One cover body, it has a containing groove, and this containing groove has a plane towards this incidence surface of this light guide plate; And
One strip light-emitting component, it is placed on this plane of this containing groove.
2. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that this cover body inner edge protrudes at least one fin to form this containing groove.
3. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that these cover body two ends also comprise at least one curved pawl, in order to fix this strip light-emitting component.
4. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that also comprising a plurality of elements that screw togather, in order to link this strip light-emitting component and this cover body.
5. the light source fixing structure of backlight assembly as claimed in claim 4 is characterized in that those screw togather element and comprise screw.
6. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that also comprising a plurality of blooming pieces, is arranged at this light guide plate top.
7. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that this cover body comprises the metal material with thermal diffusivity.
8. the light source fixing structure of backlight assembly as claimed in claim 1 is characterized in that this strip light-emitting component comprises a substrate and is fixed at least one light emitting diode on this substrate.
9. the light source fixing structure of backlight assembly as claimed in claim 8 is characterized in that this substrate comprises printed circuit board (PCB).
10. the light source fixing structure of backlight assembly as claimed in claim 8 is characterized in that also comprising a metal substrate and is attached under this substrate, and this metal substrate comprises aluminium base or copper base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101262435A CN101131500A (en) | 2006-08-23 | 2006-08-23 | Light source fixing structure of backlight component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101262435A CN101131500A (en) | 2006-08-23 | 2006-08-23 | Light source fixing structure of backlight component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101131500A true CN101131500A (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101262435A Pending CN101131500A (en) | 2006-08-23 | 2006-08-23 | Light source fixing structure of backlight component |
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| CN (1) | CN101131500A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069321A1 (en) * | 2009-12-11 | 2011-06-16 | 广东亚一照明科技有限公司 | Heat dissipating device for led side-lighting backlight |
| CN102338327A (en) * | 2010-07-09 | 2012-02-01 | Lg伊诺特有限公司 | A backlight unit and a display device having same |
| CN102537760A (en) * | 2010-12-22 | 2012-07-04 | 联胜（中国）科技有限公司 | Backlight module and display device using same |
| CN102768434A (en) * | 2012-07-06 | 2012-11-07 | 天津三星电子有限公司 | Liquid crystal display device |
| CN102042499B (en) * | 2009-10-13 | 2013-01-23 | 奇菱科技股份有限公司 | Light-emitting diode, light stripe comprising same and side-light backlight module |
| CN102023412B (en) * | 2009-10-14 | 2013-04-24 | 友达光电股份有限公司 | Plate element and limit seat thereof |
| CN103062677A (en) * | 2012-12-19 | 2013-04-24 | 苏州佳世达电通有限公司 | Backlight module and display device with same |
| WO2014040345A1 (en) * | 2012-09-11 | 2014-03-20 | 深圳市华星光电技术有限公司 | Edge-type backlight module |
| 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 |
| CN105242452A (en) * | 2015-09-30 | 2016-01-13 | 深圳天珑无线科技有限公司 | Backlight module, liquid crystal display module and mobile phone |
| CN114779532A (en) * | 2018-12-05 | 2022-07-22 | 友达光电股份有限公司 | Backlight module |
-
2006
- 2006-08-23 CN CNA2006101262435A patent/CN101131500A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042499B (en) * | 2009-10-13 | 2013-01-23 | 奇菱科技股份有限公司 | Light-emitting diode, light stripe comprising same and side-light backlight module |
| CN102023412B (en) * | 2009-10-14 | 2013-04-24 | 友达光电股份有限公司 | Plate element and limit seat thereof |
| WO2011069321A1 (en) * | 2009-12-11 | 2011-06-16 | 广东亚一照明科技有限公司 | Heat dissipating device for led side-lighting backlight |
| CN102338327B (en) * | 2010-07-09 | 2014-03-12 | Lg伊诺特有限公司 | Backlight unit and display device having same |
| US8616752B2 (en) | 2010-07-09 | 2013-12-31 | Lg Innotek Co., Ltd. | Backlight unit and display device therewith |
| CN102338327A (en) * | 2010-07-09 | 2012-02-01 | Lg伊诺特有限公司 | A backlight unit and a display device having same |
| CN102537760A (en) * | 2010-12-22 | 2012-07-04 | 联胜（中国）科技有限公司 | Backlight module and display device using same |
| CN102768434A (en) * | 2012-07-06 | 2012-11-07 | 天津三星电子有限公司 | Liquid crystal display device |
| CN102768434B (en) * | 2012-07-06 | 2015-02-25 | 天津三星电子有限公司 | Liquid crystal display device |
| WO2014040345A1 (en) * | 2012-09-11 | 2014-03-20 | 深圳市华星光电技术有限公司 | Edge-type backlight module |
| US8985829B2 (en) | 2012-09-11 | 2015-03-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Side-edge backlight module |
| 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 |
| CN103062677A (en) * | 2012-12-19 | 2013-04-24 | 苏州佳世达电通有限公司 | Backlight module and display device with same |
| CN105242452A (en) * | 2015-09-30 | 2016-01-13 | 深圳天珑无线科技有限公司 | Backlight module, liquid crystal display module and mobile phone |
| CN114779532A (en) * | 2018-12-05 | 2022-07-22 | 友达光电股份有限公司 | Backlight module |
| CN114779532B (en) * | 2018-12-05 | 2023-09-08 | 友达光电股份有限公司 | Backlight module |
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