CN101649997B - Lamp reflecting structure and backlight source - Google Patents
Lamp reflecting structure and backlight source Download PDFInfo
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- CN101649997B CN101649997B CN200810118243XA CN200810118243A CN101649997B CN 101649997 B CN101649997 B CN 101649997B CN 200810118243X A CN200810118243X A CN 200810118243XA CN 200810118243 A CN200810118243 A CN 200810118243A CN 101649997 B CN101649997 B CN 101649997B
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- layer cover
- internal layer
- lamp
- outer layer
- reflecting structure
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Abstract
The invention relates to a lamp reflecting structure and a backlight source. The lamp reflecting structure comprises an inner layer cover and an outer layer cover, wherein the inner layer cover and the outer layer cover are mutually supported to form two cavities used for placing a lamp wire and a lighting tube respectively. In the lamp reflecting structure and the backlight source, the outer layer cover and the inner layer cover are arranged so as to effectively improve the utilization ratio of light; the two cavities used for placing the lamp wire and the lighting tube respectively are formed for protecting the lamp wire so as to prevent electric shock caused by scratching of the lamp wire during the assembling of the backlight source, and to avoid problems such as non-uniform current and the like; a groove cavity is arranged to protect a panel drive chip; and fixed plastics is arranged to eliminate the hidden danger that a light guide plate crushes the lighting tube.
Description
Technical field
The present invention relates to a kind of lamp reflecting structure and backlight, relate in particular to a kind of backlight that has the lamp reflecting structure of jacketed lamp reflex housing and have this lamp reflecting structure, belong to LCD and make the field.
Background technology
LCD MODULE is made up of liquid crystal display (LCD) screen, external drive circuit, backlight three parts, because LCD MODULE belongs to passive luminous, therefore need backlight that the luminous energy of LCD MODULE is provided, backlight mainly by cold-cathode fluorescence lamp, light guide plate (Light Guide Plate, LGP), composition such as blooming.Cold cathode ray tube is main light-emitting device, in order to improve the utilization factor of light effectively, backlight can use lamp reflector, and need lamp reflector to have certain contour structures, in addition, lamp reflector has also played the mechanical effect of fixed lamp tube and lamp line, for example application number be US20020101549 patent disclosure a kind of light-source structure that has lamp reflector in the wedge shape light guide plate module that is applied in, such lamp reflector physical construction has limited the lamp line placement space, disturbed the cross sectional shape of reflex housing, thereby increased light path and the order of reflection in the reflection process, thereby increased light absorption, reduced the effective rate of utilization of light; Simultaneously, because lamp reflector does not stop the structure of light guide plate, increased the hidden danger that light guide plate is pulverized fluorescent tube.
In addition, also have several lamp reflectors commonly used, as shown in Figure 1, be the structural representation of existing lamp reflecting structure embodiment one, at such lamp reflector, two fluorescent tube lamp lines paste placement mutually, the loop of two fluorescent tube formation is easy to generate circuit and disturbs, and occurs problems such as current unevenness weighing apparatus easily; The chip for driving (Driver IC) of fluorescent tube lamp line contact simultaneously is subjected to the tube circuit electric field influence easily.As shown in Figure 2, for the structural representation of existing lamp reflecting structure embodiment two, at such lamp reflector, though fluorescent tube and lamp line line are separately, the protection chip for driving is not good enough, and simultaneously, the light utilization efficiency of above-mentioned two kinds of structures is low.
Summary of the invention
The invention provides a kind of lamp reflecting structure and backlight, to realize improving effectively the utilization factor and the protection lamp line of light.
The invention provides a kind of lamp reflecting structure, this lamp reflecting structure comprises internal layer cover and outer layer cover, supports mutually between described internal layer cover and the outer layer cover, forms to be respectively applied for two cavitys placing lamp line and fluorescent tube.
Wherein, the upper surface of described outer layer cover also is provided with a groove cavity, is used to protect chip for driving; Described outer layer cover is an opening long strip type sheet metal, and the cross sectional shape of described outer layer cover is arc, semicircle or rectangle; Described internal layer cover is an opening long strip type sheet metal, and the cross sectional shape of described internal layer cover is arc, semicircle or rectangle.The inwall of described internal layer cover is highly reflective material or posts highly reflective material that described highly reflective material comprises silver-plated film.Described internal layer cover is the rectangular cavity that has rounding, the rounding place arc concentric with fluorescent tube.Above-mentioned outer layer cover comprises in the cavity of internal layer cover and is provided with fixed plastics, and fixed plastics is positioned at the two ends of outer layer cover at least, arrives internal layer cover openings at two ends place.
The invention provides a kind of backlight, wherein, described outer layer cover comprises in the cavity of internal layer cover and is provided with fixed plastics, and described fixed plastics is positioned at the two ends of outer layer cover at least, arrives internal layer cover openings at two ends place.
The present invention also provides a kind of backlight, wherein, can form at least one projection on the described outer layer cover, and described projection is replaced mutually with internal layer cover one end.
The present invention also provides a kind of backlight, and this backlight also comprises light guide plate, and wherein, described outer layer cover is provided with the junction, and described junction replaces mutually with the two ends of internal layer cover, and above-mentioned light guide plate is fixed in the groove of backboard.
The present invention also provides a kind of backlight, and this backlight also comprises light guide plate, and wherein, described light guide plate is replaced mutually with the two ends of internal layer cover.
Above-mentioned lamp reflecting structure and backlight are by being provided with the utilization factor that outer layer cover and internal layer cover have improved light effectively; Be respectively applied for two cavitys placing lamp line and fluorescent tube by formation and protect lamp line, scratch the electric shock that lamp line brings when preventing the backlight assembling, avoid occurring problems such as current unevenness weighing apparatus; By being set, groove cavity protects the panel chip for driving; By fixed plastics or other modes are set, eliminated the hidden danger that light guide plate is pulverized fluorescent tube.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation of existing lamp reflecting structure embodiment one;
Fig. 2 is the structural representation of existing lamp reflecting structure embodiment two;
Fig. 3 is the structural representation of lamp reflecting structure embodiment of the present invention;
Fig. 4 is the upward view of lamp reflecting structure of the present invention;
Fig. 5 is the schematic cross-section of lamp reflecting structure of the present invention along the B-B position among Fig. 4;
Fig. 6 is the schematic cross-section of lamp reflecting structure of the present invention along the C-C position among Fig. 4;
Fig. 7 is the structural representation of lamp reflecting structure embodiment two of the present invention;
Fig. 8 is the structural representation of lamp reflecting structure embodiment three of the present invention;
Fig. 9 is the structural representation of lamp reflecting structure embodiment four of the present invention.
Embodiment
As shown in Figure 3, be the structural representation of lamp reflecting structure embodiment of the present invention, this lamp reflecting structure comprises internal layer cover 11 and outer layer cover 12, supports mutually between above-mentioned internal layer cover 11 and the outer layer cover 12, forms to be respectively applied for two cavitys placing lamp line 13 and fluorescent tube 14.
Wherein, the upper surface of above-mentioned outer layer cover 12 can also be provided with a groove cavity 101, is used to protect chip for driving.Above-mentioned outer layer cover is an opening long strip type sheet metal, and the cross sectional shape of above-mentioned outer layer cover can be arc, semicircle or rectangle; Above-mentioned internal layer cover is an opening long strip type sheet metal, and the shape of internal layer cover is by the form of light source luminescent and placement location decision, and the cross sectional shape of above-mentioned internal layer cover can be arc, semicircle or rectangle, but adopts semicircle or arc usually for the utilization factor that improves light; The inwall of above-mentioned internal layer cover is highly reflective material or posts highly reflective material, and above-mentioned highly reflective material can be various metal surfaces or various plastic membranous layers with high reflectance etc., for example can be silver-plated film or various reflectance coatings etc.; Above-mentioned internal layer cover is the rectangular cavity that has rounding, the rounding place arc concentric with the arc at fluorescent tube place.
A point from Fig. 3 is looked up this lamp reflecting structure, can obtain structure shown in Figure 4, from Fig. 4, can be clear that the position relation of internal layer cover 11, outer layer cover 12 and fluorescent tube 14, and outer layer cover 12 is longer than internal layer cover 11 on length, above-mentioned outer layer cover 12 comprises in the cavity of internal layer cover 11 and is provided with fixed plastics 201, said fixing plastics 201 are positioned at the two ends of outer layer cover 12 at least, arrive internal layer cover 11 openings at two ends places, above-mentioned plastics 201 are used for fixing fluorescent tube 14, also can stop the extruding of light guide plate simultaneously; Do the cross section along the B-B position among Fig. 4, can obtain structure as shown in Figure 5, wherein, groove cavity 101 is used to protect chip for driving, and fluorescent tube hole 102 is used to place fluorescent tube 14, and lamp line hole 103 is used to place lamp line 13; Equally, do the cross section, can obtain structure as shown in Figure 6, as can be seen from Figure 6 the relation of the position between groove cavity 101, fluorescent tube hole 102, lamp line hole 103, fixed plastics 201 and the outer layer cover 12 along the C-C position among Fig. 4.
In addition, the lamp reflecting structure that is made of internal layer cover and outer layer cover is except as shown in Figure 3, can also comprise structure as shown in Figure 7, as shown in Figure 8 and as shown in Figure 9 or the like, the difference of Fig. 7 and Fig. 3 is, form a series of projections 301 on the outer layer cover 12 among Fig. 7, above-mentioned projection 301 is replaced mutually with an end of internal layer cover 11, and the purpose that this baffle plate 301 is set is to prevent light guide plate 2 extruding fluorescent tubes; The difference of Fig. 8 and Fig. 3 is that outer layer cover 12 is provided with the junction, and above-mentioned junction is replaced mutually with the two ends of internal layer cover 11, but this kind lamp reflecting structure can't be eliminated the hidden danger of light guide plate 2 extruding fluorescent tubes by fixed plastics, but fix light guide plate 2 by other means, for example on backboard, be provided with a groove, be used for fixing light guide plate, thereby make light guide plate can't push fluorescent tube; The difference of Fig. 9 and Fig. 3 is that light guide plate is positioned at the opening part of internal layer cover 11, and replaces mutually with the two ends of internal layer cover 11, thereby can prevent light guide plate 2 extruding fluorescent tubes.
Above-mentioned lamp reflecting structure is by being provided with the utilization factor that outer layer cover and internal layer cover have improved light effectively; Be respectively applied for two cavitys placing lamp line and fluorescent tube by formation and protect lamp line, scratch the electric shock that lamp line brings when preventing the backlight assembling, avoid occurring problems such as current unevenness weighing apparatus; By being set, groove cavity protects the panel chip for driving; By fixed plastics or other settings are set, eliminated the hidden danger that light guide plate is pulverized fluorescent tube.
The embodiment of the invention also provides a kind of backlight, this backlight comprises lamp reflecting structure 1 and light guide plate 2, as shown in Figure 3, above-mentioned lamp reflecting structure 1 comprises internal layer cover 11 and outer layer cover 12, support mutually between above-mentioned internal layer cover 11 and the outer layer cover 12, form and be respectively applied for two cavitys placing lamp line 13 and fluorescent tube 14.
The upper surface of above-mentioned outer layer cover 12 also is provided with a groove cavity 101, is used to protect chip for driving; Above-mentioned outer layer cover 12 comprises in the cavity of internal layer cover 11 and is provided with fixed plastics, is used for fixing fluorescent tube 14 and stops the extruding of light guide plate 2, and the said fixing plastics arrive the opening part of internal layer cover 11 at least.About the shape of internal layer cover and outer layer cover and other relevant be provided with lamp reflecting structure embodiment of the present invention in be provided with identically, do not give unnecessary details at this.
Above-mentioned backlight owing to comprise the lamp reflecting structure with internal layer cover and outer layer cover, has improved the utilization factor of light effectively; Be respectively applied for two cavitys placing lamp line and fluorescent tube by formation and protect lamp line, scratch the electric shock that lamp line brings when preventing the backlight assembling, avoid occurring problems such as current unevenness weighing apparatus; By being set, groove cavity protects the panel chip for driving; By fixed plastics or other settings are set, eliminated the hidden danger that light guide plate is pulverized fluorescent tube.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. lamp reflecting structure, it is characterized in that comprising internal layer cover and outer layer cover, support mutually between described internal layer cover and the outer layer cover, formation is respectively applied for two cavitys placing lamp line and fluorescent tube, wherein, the hood-shaped one-tenth of described internal layer is used to place the cavity of described fluorescent tube, is formed for placing the cavity of lamp line between the outer wall of the inwall of described outer layer cover and internal layer cover; Described outer layer cover is an opening long strip type sheet metal, and the lateral cross section of described outer layer cover is shaped as arc or rectangle; The upper surface of described outer layer cover also is provided with a groove cavity, is used to protect the panel chip for driving.
2. lamp reflecting structure according to claim 1 is characterized in that described internal layer cover is an opening long strip type sheet metal, and the lateral cross section of described internal layer cover is shaped as arc or rectangle.
3. lamp reflecting structure according to claim 1, the inwall that it is characterized in that described internal layer cover are highly reflective material or post highly reflective material that described highly reflective material comprises silver-plated film.
4. lamp reflecting structure according to claim 1 is characterized in that described internal layer cover is the rectangular cavity that has rounding, the rounding place arc concentric with fluorescent tube.
5. lamp reflecting structure according to claim 1 is characterized in that described outer layer cover comprises the fixed plastics that is provided with fixed lamp tube in the cavity of internal layer cover, and described fixed plastics is positioned at the two ends of outer layer cover at least, arrives internal layer cover openings at two ends place.
6. an application rights requires the backlight of the arbitrary lamp reflecting structure of 1-4, it is characterized in that described outer layer cover comprises the fixed plastics that is provided with fixed lamp tube in the cavity of internal layer cover, described fixed plastics is positioned at the two ends of outer layer cover at least, arrives internal layer cover openings at two ends place.
7. the backlight of the arbitrary lamp reflecting structure of application rights requirement 1-4 is characterized in that forming at least one projection on the described outer layer cover, and described projection is replaced mutually with the end towards light guide plate of internal layer cover.
8. an application rights requires the backlight of the arbitrary lamp reflecting structure of 1-4, also comprises light guide plate and backboard, it is characterized in that described outer layer cover is provided with the junction, and described junction replaces mutually with the two ends of internal layer cover, and described light guide plate is fixed in the groove of backboard.
9. an application rights requires the backlight of the arbitrary lamp reflecting structure of 1-4, also comprises light guide plate, it is characterized in that described light guide plate replaces mutually with the two ends of internal layer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810118243XA CN101649997B (en) | 2008-08-11 | 2008-08-11 | Lamp reflecting structure and backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810118243XA CN101649997B (en) | 2008-08-11 | 2008-08-11 | Lamp reflecting structure and backlight source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101649997A CN101649997A (en) | 2010-02-17 |
| CN101649997B true CN101649997B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810118243XA Expired - Fee Related CN101649997B (en) | 2008-08-11 | 2008-08-11 | Lamp reflecting structure and backlight source |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202623526U (en) * | 2011-05-20 | 2012-12-26 | 株式会社杰士汤浅国际 | Light irradiation device |
| CN102661574B (en) * | 2012-04-28 | 2014-05-21 | 深圳市华星光电技术有限公司 | Light guide plate and backlight mould provided with same |
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- 2008-08-11 CN CN200810118243XA patent/CN101649997B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101649997A (en) | 2010-02-17 |
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Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20141210 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20141210 |
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Free format text: CORRECT: ADDRESS; FROM: 100176 DAXING, BEIJING TO: 100015 CHAOYANG, BEIJING |
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Effective date of registration: 20141210 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Patentee after: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100176 Beijing economic and Technological Development Zone, West Central Road, No. 8 Patentee before: BEIJING BOE OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20110831 Termination date: 20210811 |
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