CN102997191A - LED (light-emitting diode) lamp holder, direct-type backlight source and display device - Google Patents
LED (light-emitting diode) lamp holder, direct-type backlight source and display device Download PDFInfo
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- CN102997191A CN102997191A CN2012104654903A CN201210465490A CN102997191A CN 102997191 A CN102997191 A CN 102997191A CN 2012104654903 A CN2012104654903 A CN 2012104654903A CN 201210465490 A CN201210465490 A CN 201210465490A CN 102997191 A CN102997191 A CN 102997191A
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- led lamp
- light
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- lamp holder
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Abstract
The invention relates to the technical field of liquid crystal display, and discloses an LED (light-emitting diode) lamp holder. The LED lamp holder comprises a base, a fixing element, and a reflecting layer, wherein the base comprises a taper side surface; the fixing element is arranged at the bottom part of the base; and the reflecting layer is arranged at the taper side surface. The LED lamp holder has the following beneficial effects that areas between LED lamps in a direct-type backlight source can be brightened by reflective gathering of rays by the reflecting layer due to the fact that the reflecting layer is formed at the side surface of the base in the technical scheme. Thus, lamp shadows formed by the LED lamps in these areas are reduced, and the rays irradiating from the backlight source to a display screen are more even.
Description
Technical field
The present invention relates to technical field of liquid crystal display, specially refer to the holder of a kind of LED lamp, direct-light-type backlight and display unit.
Background technology
Backlight is the most important equipment that can determine the display unit image quality in the display unit except panel, and the effect of its irradiation has directly determined the quality of display unit display frame quality.Along with people appreciate improving constantly of requirement, people are also more and more higher to the requirement of display unit picture, in order to satisfy client's needs, display unit producer constantly improves the effect of backlight, and develop various light sources, as: EL(Electroluminescence, electroluminescent is called for short EL), CCFL(Cold Cathode FluorescentLamp, cathode fluorescent tube, be called for short CCFL), HCFL(Hot Cathode Fluorescent Lamp, thermal cathode fluorescent tube is called for short HCFL), and the LED(Light Emitting Diode of today, Light-Emitting Diode is called for short LED).In these light sources, the LED lamp adopts the direct-light-type backlight of LED lamp that two kinds of structures are arranged with its good light effects and the cheap unblamable backlight that becomes display unit the best of price at present: a kind of is to adopt many low-power LED lamp combinations; Another is the high-capacity LED lamp that uses with secondary lens.When adopting many low-power LED lamps to make backlight, although the price comparison of single LED lamp is low, but because LED lamp quantity is more, cost is also higher, and during this backlight work, the heat that the LED lamp produces is larger, and this also has influence on the service life of the relatively poor parts of other heat resistances in the display unit.High-capacity LED lamp with secondary lens comprises: LED lamp and the secondary lens that is arranged on LED lamp the place ahead, the light that the LED light irradiation goes out can scioptics refraction diffuse to more wide zone, so that backlight can use a small amount of LED lamp just whole display screen can be illuminated, therefore, when selecting direct-light-type backlight, mostly adopt the high-capacity LED lamp with secondary lens.
The present application people finds, when prior art adopts with the high-capacity LED lamp making backlight of secondary lens, although high-frequency LED lamp spreads through secondary lens, enlarged the range of exposures of LED lamp, but because a number of the LED lamp that this kind backlight uses is fewer, very easily form lamp shadow between the LED lamp, as shown in Figure 1.In Fig. 1, can obviously find out between the halation 40 that the LED light irradiation goes out has obvious lamp shadow 50, so that the brightness that shines on the display screen is inconsistent, thereby has influence on the picture effect of display screen.The scheme of at present normal use of head it off is for increasing the mixed light distance or increasing LED number.But because more expensive with the unit price of the LED of secondary lens, and increase mixed light causes whole module thickness apart from meeting increase.These all cause puzzlement to modular design.
Summary of the invention
The invention provides the holder of a kind of LED lamp, direct-light-type backlight and display unit, the lamp shadow that produces to reduce the LED lamp improves the uniformity of backlight light irradiation, improves the display effect of display unit.
The invention provides the holder of a kind of LED lamp, comprising: have the base of tapered side surface, be positioned at the fixture of base bottom, and the reflecting layer that is positioned at tapered side surface.
Preferably, described fixture is buckle or sucker.
Preferably, described reflecting layer is reflectance coating or reflector plate.
Preferably, described base inside has cavity, is provided with support column in the described cavity, and described support column one end is fixedly connected with cavity wall, and the other end is fixedly connected with fixture.
Preferably, described base also comprises: several fixed supports that connect support column and cavity wall.
Preferably, described base is cone barrel.
Preferably, described base, buckle, bracing frame and the fixed support structure that is formed in one.
A kind of direct-light-type backlight comprises above-mentioned any one LED lamp holder.
A kind of display unit comprises above-mentioned any one LED lamp holder.
Beneficial effect of the present invention is as follows: in technical solution of the present invention, because the side surface of base has the reflecting layer, the reflecting layer is gathered the reflection of light can make that the zone between the LED lamp brightens in the direct-light-type backlight, thereby alleviate the LED lamp at the lamp shadow that these zones form, it is more even to make backlight shine the light of display screen.
Description of drawings
Fig. 1 is that available technology adopting is with the backlight radiation response figure of the LED lamp of secondary lens;
Fig. 2 is the structural representation of one embodiment of the invention LED lamp holder;
Fig. 3 is the fundamental diagram of one embodiment of the invention LED lamp holder;
Fig. 4 is the radiation response figure of the backlight of use LED lamp of the present invention holder;
Fig. 5 is that the holder of another embodiment of the present invention LED lamp is along the cutaway view of axis.
Reference numeral
10-base 11-cavity 12-support column
13-fixed support 20-buckle 30-reflecting layer
40 halation, 50 lamp shadow 60-backboards
The 70-LED lamp
The specific embodiment
The lamp shadow that produces in order to reduce the LED lamp improves the uniformity of backlight light irradiation, improves the display effect of display unit, and the embodiment of the invention provides the holder of a kind of LED lamp, direct-light-type backlight and display unit.In technical scheme of the present invention, a kind of lamp holder with tapered side surface is provided, be provided with the reflecting layer on the tapered side surface of this lamp holder, this reflecting layer can be brought to the scattered beam reflection of LED lamp the zone between the LED lamp, thereby alleviate the lamp shadow between the adjacent LED lamp, the light that the LED lamp is sent can be radiated on the display screen more uniformly.For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples the present invention is described in further detail.
As shown in Figure 2, the LED lamp holder of one embodiment of the invention comprises: have the base 10 of tapered side surface, be positioned at the fixture of base 10 bottoms, and the reflecting layer 30 that is positioned at tapered side surface.
Among this embodiment, base 10 is the cone seat of entity, and reflecting layer 30 covers on the whole conical lateral surface of base 10.In use, as shown in Figure 3, reflecting layer 30 can be brought to the light that LED lamp 70 scatters the zone that is positioned at lamp holder below, improves the lightness in zone between two LED lamps 70, has reduced the lamp shadow of backlight generation to the impact of display screen picture.After adopting the lamp holder of present embodiment, the effect that the LED lamp 70 on the backlight irradiates as shown in Figure 4, than the radiation response of prior art, can significantly find out the lamp holder of using present embodiment after, alleviated to a great extent the lamp shadow that backlight produces.Continue with reference to shown in Figure 3, the LED lamp holder that present embodiment provides, can directly be fixed on by the fixture that is arranged on base 10 bottoms on the backboard 60 on the position between the LED lamp 70, can with the light reflection of LED lamp 70 to display screen, be equivalent between the LED lamp, increase a spot light by the reflecting layer 30 on the base 10.Therefore, after the LED lamp holder of use present embodiment, backlight can reduce LED lamp 70 quantity of use.Because the light beam that LED lamp 70 irradiates in the backlight is truncated cone-shaped, direction light beam range of exposures along the light beam irradiation is increasing, in order to make the light that shines on the display screen evenly and to reach certain intensity, the light that shines on the display screen should have common factor, this just requires that certain spacing distance is arranged between LED lamp 70 and the display screen, when using the LED lamp holder of present embodiment, the lamp holder is brought to the darker zone of light between the LED lamp 70 with 70 irradiations of LED lamp less than the light of display screen and the light that shines in other LED lamp 70 light beams, so that the light that LED lamp 70 irradiates is more even, shortened simultaneously the required spacing distance of light beam generation common factor that LED lamp 70 irradiates.Therefore, after the LED lamp holder of employing present embodiment, the thickness of display unit can attenuation.
As shown in Figure 5, the LED lamp holder of another embodiment of the present invention, base 10 inside have cavity 11, are provided with support column 12 in the described cavity 11, and described support column 12 1 ends are fixedly connected with cavity wall, and the other end is fixedly connected with fixture.Fixture is preferably buckle 20, simultaneously in order to strengthen the stability of support column 12, is provided with several fixed supports 13 between the sidewall of support column 12 and cavity 11.
Among this embodiment, be provided with cavity 11 at base 10, the bottom of cavity 11 is provided with support column 12, preferably this cavity 11 is conical cavity, and also is provided with fixed support 13 between conical cavity and the support column 12, when guaranteeing support column 12 intensity, reduced to greatest extent and made the material that the lamp holder consumes, alleviated the weight of lamp holder, and this kind structure can be directly injection molded by the injection moulding mode, reduced the manufacturing cost of lamp holder.When using the LED lamp holder that present embodiment provides, can the lamp holder directly be fixed on the backboard of backlight by buckle 20, adopt the LED lamp holder that present embodiment is provided that this fixed form can be simple and reliable to be fixed on the backboard.
In addition, above-described embodiment is a kind of operational version of direct-light-type backlight by reference to the accompanying drawings.But with concrete application in, this LED lamp holder also goes in the side-edge type backlight.
A kind of direct-light-type backlight of the present invention comprises the holder of the described LED lamp of aforementioned arbitrary embodiment, has the higher light uniformity.
A kind of display unit of the present invention comprises the holder of the described LED lamp of aforementioned arbitrary embodiment, has better picture display effect.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. LED lamp holder is characterized in that, comprising: have the base of tapered side surface, be positioned at the fixture of base bottom, and be positioned at the reflecting layer on the tapered side surface.
2. LED lamp as claimed in claim 1 holder is characterized in that, described fixture is buckle or sucker.
3. LED lamp as claimed in claim 1 holder is characterized in that, described reflecting layer is reflectance coating or reflector plate.
4. such as each described LED lamp holder of claim 1 ~ 3, it is characterized in that described base inside has cavity, is provided with support column in the described cavity, described support column one end is fixedly connected with cavity wall, and the other end is fixedly connected with fixture.
5. LED lamp as claimed in claim 4 holder is characterized in that, also comprises: several fixed supports that connect support column and cavity wall.
6. LED lamp as claimed in claim 5 holder is characterized in that, described base is cone barrel.
7. LED lamp as claimed in claim 6 holder is characterized in that, described base, buckle, bracing frame and the fixed support structure that is formed in one.
8. a direct-light-type backlight is characterized in that, comprises such as each described LED lamp holder of claim 1 ~ 7.
9. a display unit is characterized in that, comprises such as each described LED lamp holder of claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104654903A CN102997191A (en) | 2012-11-16 | 2012-11-16 | LED (light-emitting diode) lamp holder, direct-type backlight source and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104654903A CN102997191A (en) | 2012-11-16 | 2012-11-16 | LED (light-emitting diode) lamp holder, direct-type backlight source and display device |
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| Publication Number | Publication Date |
|---|---|
| CN102997191A true CN102997191A (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104654903A Pending CN102997191A (en) | 2012-11-16 | 2012-11-16 | LED (light-emitting diode) lamp holder, direct-type backlight source and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708225A (en) * | 2020-06-30 | 2020-09-25 | 深圳创维－Rgb电子有限公司 | Fixing support, backlight module and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186080A (en) * | 2002-12-05 | 2004-07-02 | Tama Electric Co Ltd | Backlight device |
| US20050225960A1 (en) * | 2004-04-01 | 2005-10-13 | Yi-Shiuan Tsai | Backlight module |
| CN101057176A (en) * | 2004-11-17 | 2007-10-17 | 三星电子株式会社 | Backlight unit and LCD display apparatus having the same |
| CN201373934Y (en) * | 2009-03-19 | 2009-12-30 | 华映视讯（吴江）有限公司 | Optical membrane supporting frame and supporting structure thereof |
| CN101952641A (en) * | 2008-03-06 | 2011-01-19 | 夏普株式会社 | Lighting device and display device |
| CN102472448A (en) * | 2009-07-21 | 2012-05-23 | 夏普株式会社 | Support pin, illumination device, display device, and television receiving device |
-
2012
- 2012-11-16 CN CN2012104654903A patent/CN102997191A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186080A (en) * | 2002-12-05 | 2004-07-02 | Tama Electric Co Ltd | Backlight device |
| US20050225960A1 (en) * | 2004-04-01 | 2005-10-13 | Yi-Shiuan Tsai | Backlight module |
| CN101057176A (en) * | 2004-11-17 | 2007-10-17 | 三星电子株式会社 | Backlight unit and LCD display apparatus having the same |
| CN101952641A (en) * | 2008-03-06 | 2011-01-19 | 夏普株式会社 | Lighting device and display device |
| CN201373934Y (en) * | 2009-03-19 | 2009-12-30 | 华映视讯（吴江）有限公司 | Optical membrane supporting frame and supporting structure thereof |
| CN102472448A (en) * | 2009-07-21 | 2012-05-23 | 夏普株式会社 | Support pin, illumination device, display device, and television receiving device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708225A (en) * | 2020-06-30 | 2020-09-25 | 深圳创维－Rgb电子有限公司 | Fixing support, backlight module and display device |
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Application publication date: 20130327 |