CN201284988Y - Back light source and LCD employing the same - Google Patents
Back light source and LCD employing the same Download PDFInfo
- Publication number
- CN201284988Y CN201284988Y CNU2008201752814U CN200820175281U CN201284988Y CN 201284988 Y CN201284988 Y CN 201284988Y CN U2008201752814 U CNU2008201752814 U CN U2008201752814U CN 200820175281 U CN200820175281 U CN 200820175281U CN 201284988 Y CN201284988 Y CN 201284988Y
- Authority
- CN
- China
- Prior art keywords
- circuit support
- support plate
- reflector plate
- emitting diode
- backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a backlight source and a liquid crystal display with same, which relates to the field of the illuminating device that is connected with the liquid crystal unit structure, and aims at improving the utilization rate of the light source by adopting a simple structure of the backlight source. The backlight source comprises a circuit support board, wherein, the circuit support board is provided with a reflection plate, and the reflection plate is provided with a lamp hole, and the lamp hole is provided with a luminous diode, and the luminous diode is electrically connected with the circuit support board. The liquid crystal display adopts the above backlight source. The backlight source can be used as the illuminating light source of the liquid crystal display.
Description
Technical field
The utility model relates to the backlight that uses in a kind of liquid crystal display, relates in particular to a kind of backlight that makes light planeization.
Background technology
With traditional CRT (Cathode Ray Tube, cathode-ray tube) display device is compared, liquid crystal display device has that fuselage is thin, power saving, radiationless, picture are soft does not hinder many advantages such as eye, so has been widely used in the displaying appliance of industry-by-industries such as TV, computer, mobile phone, camera, instrument and meter.Yet the display panels in the liquid crystal display device is a passive display device, needs the irradiation ability display image of external light source, and the illumination backlight source that is applied to liquid crystal display device mainly contains cathode fluorescent tube and light emitting diode.
Most at present liquid crystal display devices adopts cathode fluorescent tube as back light, but cathode fluorescent tube has following deficiency: colour gamut is less, brightness irregularities, and contain mercury, do not meet environmental requirement.At the problems referred to above, the patent No. is that the Chinese patent of ZL 200720029538.0 has been announced a kind of high brightness planar backlight source LCD.
As depicted in figs. 1 and 2, include a planar backlight source unit 3 in this high brightness planar backlight source LCD, the backlight that uses in the planar backlight source unit 3 is light emitting diode, it is wide that light emitting diode has colour gamut, brightness is even, advantages such as environmental protection adopt light emitting diode can overcome the defective of above-mentioned cathode fluorescent tube as backlight.
But spot light need be converted to area source when adopting light emitting diode as backlight, the method that above-mentioned planar backlight source unit 3 adopts is, is one with the light refraction plate 10 in the light refraction cave 9 of arranging with light source component support plate 13 spiral-locks that light emitting diode 11 and relevant control circuit 12 thereof are housed, form planar backlight source unit 3, wherein, the geometry in light refraction cave 9 is positive polygonal pyramids, and the rib number of positive polygonal pyramid is more than 3, and more preferably scheme is the 3-8 bar.Described light refraction cave 9 can make the light source complanation of light emitting diode, improves the light source utilization rate.
Yet in practice, because the light refraction cave shape and structure complexity on the described light refraction plate causes comparatively difficulty of light refraction cave processing.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of backlight, can improve the utilization rate of light source by simple back light source structure.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of backlight comprises the circuit support plate, is connected with reflector plate on described circuit support plate, offers lamp hole on the described reflector plate, is equipped with light emitting diode in the described lamp hole, and described light emitting diode is electrically connected with described circuit support plate.
When needing diffuse reflection, select described reflector plate surface to be coarse surface.
Need the minute surface reflex time, select described reflector plate surface to be bright and clean minute surface.
And, be provided with reflective material layer on the surface of described reflector plate in order to strengthen reflecting effect.
In order further to improve the light source utilization rate, be provided with solar panel in the edge of described reflector plate.
Wherein, described circuit support plate and described reflector plate are pasted together by double faced adhesive tape or viscosity colloid.
Described light emitting diode is matrix form on described circuit support plate arranges, and described double faced adhesive tape is arranged line by line or interlacing is arranged in the described dot matrix LEDs.
Be used for the support perforate of mounting bracket being provided with accordingly on the described circuit support plate and on the described reflector plate.
The backlight that the utility model provides, comprise the circuit support plate, on described circuit support plate, be connected with reflector plate, offer lamp hole on the described reflector plate, be equipped with light emitting diode in the described lamp hole, described light emitting diode is electrically connected with described circuit support plate, except that light emitting diode, other positions of described circuit support plate are all covered by described reflector plate, the light that described light emitting diode sends to around distribute, the light that is incident upon on the described reflector plate can also utilize after the reflection of described reflector plate again, has improved the utilization rate of light source, and structurally only need on described reflector plate, offer and get final product with the corresponding lamp hole of described light emitting diode, simple in structure.
Another technical problem to be solved in the utility model is to provide a kind of LCD, and described LCD can improve the utilization rate of light source by simple back light source structure.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of LCD comprises backlight, and described backlight comprises the circuit support plate, on described circuit support plate, be connected with reflector plate, offer lamp hole on the described reflector plate, be equipped with light emitting diode in the described lamp hole, described light emitting diode is electrically connected with described circuit support plate.
Wherein, described circuit support plate and described reflector plate are pasted together by double faced adhesive tape or viscosity colloid; And described light emitting diode is matrix form on described circuit support plate arranges, and described double faced adhesive tape is arranged line by line or interlacing is arranged in the described dot matrix LEDs.
The LCD that the utility model provides, comprise backlight, described backlight comprises the circuit support plate, on described circuit support plate, be connected with reflector plate, offer lamp hole on the described reflector plate, be equipped with light emitting diode in the described lamp hole, described light emitting diode is electrically connected with described circuit support plate, except that light emitting diode, other positions of described circuit support plate are all covered by described reflector plate, the light that described light emitting diode sends to around distribute, the light that is incident upon on the described reflector plate can also utilize after described reflector plate reflection again, improved the utilization rate of light source, and structurally only need on described reflector plate, offer and get final product with the corresponding lamp hole of described light emitting diode, simple in structure.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of backlight in the prior art;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the overall structure schematic diagram of the utility model backlight embodiment;
Fig. 4 is for setting up the structural representation of reflective material layer and solar panel on reflector plate shown in Figure 3;
Fig. 5 is the schematic diagram of double faced adhesive tape arrangement mode one among the utility model backlight embodiment;
Fig. 6 is the schematic diagram of double faced adhesive tape arrangement mode two among the utility model backlight embodiment.
The specific embodiment
The utility model aims to provide a kind of backlight and has the LCD of this backlight, and described backlight can improve the utilization rate of light source by simple structure.
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.
As shown in Figure 3, a specific embodiment for the utility model back light source structure, in the present embodiment, described backlight comprises circuit support plate 3, and circuit support plate 3 is a printed circuit board (PCB), on circuit support plate 3, be provided with reflector plate 2, offer lamp hole 5 on the reflector plate 2, light emitting diode 1 is housed in the lamp hole 5, and light emitting diode 1 electrically connects with circuit support plate 3, be that light emitting diode 1 is luminous after switching on the circuit support plate 3.
In the back light source structure that present embodiment provides, except that light emitting diode 1, other positions of circuit support plate 3 sheet 2 that all is reflected covers, light emitting diode 1 is a spot light, its light that sends to around distribute, in the LCD of using this backlight, has display panels, the light that light emitting diode 1 sends is exactly for this display panels that throws light on, and in the light that light emitting diode sends, some directly is incident upon on the described display panels, remainder then is incident upon on the reflector plate 2, and is incident upon again on the described display panels after reflector plate 2 reflections, has reduced the loss of light, improved the utilization rate of light source, and structurally, only need on reflector plate 2, offer with light emitting diode 1 corresponding lamp hole 5 and get final product, simple in structure.
In the present embodiment, reflector plate 2 is selected the reflector plate material with rough surface for use, light can carry out diffuse reflection on reflector plate 2 like this, make light be reflected back toward on the described display panels from all angles, avoided the generation of reflective phenomenon, so the user can watch display in different angles.
But select as another kind of, in the small-sized LCD that adopts this backlight, reflector plate 2 can be selected the minute surface with smooth finish surface for use, light can produce the minute surface reflection on reflector plate 2 like this, thereby make be reflected sheet 2 light reflected can the described display panels of almost parallel ground directive, increase the brightness of described display floater.
As shown in Figure 4, as a kind of improvement to present embodiment, on the surface of reflector plate 2, also be provided with one deck reflective material layer 6, reflector plate 2 light-absorbing abilities have so just been reduced, the most of light that makes light emitting diode 1 be sent sheet 2 reflection that can both be reflected, rather than the sheet 2 that is reflected absorbs, thus strengthened reflecting effect, strengthen being incident upon the brightness of the light on the described display panels, further improved the utilization rate of light source.
Further, be provided with solar panel 7 in the edge of reflector plate 2, as can be seen from Figure 4, solar panel 7 is bent into skewed making by the edge with reflector plate 2, and skewed solar panel 7 can converge the light of dispersing, thereby further improves the utilization rate of light source.
In the present embodiment, closely combine in order to make circuit support plate 3 and reflector plate 2, be provided with double faced adhesive tape or viscosity colloid on the surface that mutually combines of circuit support plate 3 and reflector plate 2, described viscosity colloid comprises glue, solid gum etc.Because Light-Emitting Diode 1 produces heat when luminous, the temperature of its surrounding environment is raise, and therefore, used double faced adhesive tape and viscosity colloid are selected resistant to elevated temperatures double faced adhesive tape and resistant to elevated temperatures viscosity colloid for use, to prevent that described double faced adhesive tape or viscosity colloid from dissolving under high temperature action, be difficult to play bonding effect.
And, in the process that circuit support plate 3 and reflector plate 2 are bonded together, to guarantee that also reflector plate 2 entirely is affixed on the surface of circuit support plate 3, can not have warping phenomenon.For reaching above-mentioned requirements, when selecting bonding circuit support plate 3 of double faced adhesive tape and reflector plate 2 for use, following two kinds of double faced adhesive tape arrangement modes are arranged.
As shown in Figure 5, be a kind of arrangement mode of double faced adhesive tape, because on circuit support plate 3, arranging of light emitting diode 1 is matrix form, therefore double faced adhesive tape can stick in the ranks or between row of this dot matrix LEDs, in Fig. 5, double faced adhesive tape 8 sticks between each row of dot matrix LEDs, and for pursuing the row arrangement mode, adopt this arrangement mode, bond area between circuit support plate 3 and the reflector plate 2 is big, and the bonding force that is subjected to also relatively evenly, can be avoided the generation of warping phenomenon effectively.
As shown in Figure 6, another kind of arrangement mode for double faced adhesive tape, in this arrangement mode, double faced adhesive tape 8 also is to stick between each row of light emitting diode, but different with above-mentioned arrangement mode be that it is every the row arrangement mode, adopt this arrangement mode, not only can guarantee to have rational bond area between circuit support plate 3 and the reflector plate 2, and can save the consumption of double faced adhesive tape, reduce cost.
It should be noted that if select bonding circuit support plate 3 of viscosity colloid and reflector plate 2 for use, then can directly be coated in the back side of reflector plate 2, itself and circuit support plate 3 are bonded together gets final product then.
From Fig. 3, Fig. 5 and Fig. 6, also can find out, on circuit support plate 3, be provided with support perforate 9, on reflecting plate 2, also correspondingly be provided with the support perforate, and the position of the support perforate on circuit support plate 3 and the reflector plate 2 and size are corresponding mutually, be equipped with support 4 in the support perforate 9, support 4 is used for reflecting plate 2 is supported.
The utility model also provides a kind of LCD, and the lighting source of this LCD adopts as above backlight described in the embodiment, and the 26S Proteasome Structure and Function of described backlight is identical with the 26S Proteasome Structure and Function of backlight in the foregoing description, does not repeat them here.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the described protection domain of claim.
Claims (10)
1, a kind of backlight comprises the circuit support plate, it is characterized in that: be connected with reflector plate on described circuit support plate, offer lamp hole on the described reflector plate, be equipped with light emitting diode in the described lamp hole, described light emitting diode is electrically connected with described circuit support plate.
2, backlight according to claim 1 is characterized in that: described reflector plate surface is coarse surface.
3, backlight according to claim 1 is characterized in that: described reflector plate surface is bright and clean minute surface.
4, according to claim 2 or 3 described backlights, it is characterized in that: the surface at described reflector plate is provided with reflective material layer.
5, backlight according to claim 4 is characterized in that: the edge at described reflector plate is provided with solar panel.
6, backlight according to claim 1 is characterized in that: described circuit support plate and described reflector plate are pasted together by double faced adhesive tape or viscosity colloid.
7, backlight according to claim 6 is characterized in that: described light emitting diode is matrix form on described circuit support plate arranges, and described double faced adhesive tape is arranged line by line or interlacing is arranged in the described dot matrix LEDs.
8, backlight according to claim 1 is characterized in that: be used for the support perforate of mounting bracket being provided with accordingly on the described circuit support plate and on the described reflector plate.
9, a kind of LCD comprises backlight, and described backlight comprises the circuit support plate, it is characterized in that: on described circuit support plate, be connected with reflector plate, offer lamp hole on the described reflector plate, be equipped with light emitting diode in the described lamp hole, described light emitting diode is electrically connected with described circuit support plate.
10, LCD according to claim 9 is characterized in that: described circuit support plate and described reflector plate are pasted together by double faced adhesive tape or viscosity colloid;
And described light emitting diode is matrix form on described circuit support plate arranges, and described double faced adhesive tape is arranged line by line or interlacing is arranged in the described dot matrix LEDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201752814U CN201284988Y (en) | 2008-11-19 | 2008-11-19 | Back light source and LCD employing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201752814U CN201284988Y (en) | 2008-11-19 | 2008-11-19 | Back light source and LCD employing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284988Y true CN201284988Y (en) | 2009-08-05 |
Family
ID=40949974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201752814U Expired - Fee Related CN201284988Y (en) | 2008-11-19 | 2008-11-19 | Back light source and LCD employing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284988Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128391A (en) * | 2010-01-18 | 2011-07-20 | Lg伊诺特有限公司 | Lighting unit and display device having the same |
| CN115202098A (en) * | 2021-04-09 | 2022-10-18 | 海信视像科技股份有限公司 | Display device |
-
2008
- 2008-11-19 CN CNU2008201752814U patent/CN201284988Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128391A (en) * | 2010-01-18 | 2011-07-20 | Lg伊诺特有限公司 | Lighting unit and display device having the same |
| US8568012B2 (en) | 2010-01-18 | 2013-10-29 | Lg Innotek Co., Ltd. | Lighting unit and display device having the same |
| CN115202098A (en) * | 2021-04-09 | 2022-10-18 | 海信视像科技股份有限公司 | Display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI536081B (en) | Backlight unit and display apparatus using the same | |
| CN202048503U (en) | LED (Light-Emitting Diode) backlight module diffusion board | |
| CN210835515U (en) | Supporting structure, backlight module and display device thereof | |
| CN201401701Y (en) | Backlight modular structure of liquid crystal display | |
| CN104964213B (en) | Backlight module and liquid crystal display | |
| WO2006138397A2 (en) | Led backlighting for displays | |
| US10241255B2 (en) | Backlight module and liquid crystal display | |
| CN102081187A (en) | Spliced type light guide plate structure and backlight module | |
| CN110928036A (en) | Display device and display method and preparation method thereof | |
| CN202647443U (en) | LED (light emitting diode) backlight module and LED liquid crystal display device | |
| CN106896579A (en) | Backlight module and liquid crystal display device | |
| CN109188768A (en) | Backlight module and display device | |
| CN206378665U (en) | A kind of backlight and display module | |
| CN107505771A (en) | Backlight module and the liquid crystal display with the backlight module | |
| CN107340644A (en) | Backlight module and the liquid crystal display with the backlight module | |
| KR20100006298A (en) | Led organization method for liquid crystal display module | |
| CN201284988Y (en) | Back light source and LCD employing the same | |
| CN103090319A (en) | Lamp bar of liquid crystal display (LCD) television and directly-down type backlight module | |
| CN202327857U (en) | High-brightness and ultra-thin backlight source | |
| CN107577086B (en) | Display device and backlight module | |
| CN103542296B (en) | A kind of LED lamp bar and direct-light type LED backlight module | |
| CN214669974U (en) | Lamp holder, backlight module and display device | |
| CN201788335U (en) | Direct-type liquid crystal module using high-power LED as light source | |
| CN103982819A (en) | Multi-surface display device | |
| CN202364414U (en) | Backlight and display device comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20121119 |