CN102566139A - LED (Light-Emitting Diode) backlight display equipment - Google Patents
LED (Light-Emitting Diode) backlight display equipment Download PDFInfo
- Publication number
- CN102566139A CN102566139A CN2010106096103A CN201010609610A CN102566139A CN 102566139 A CN102566139 A CN 102566139A CN 2010106096103 A CN2010106096103 A CN 2010106096103A CN 201010609610 A CN201010609610 A CN 201010609610A CN 102566139 A CN102566139 A CN 102566139A
- Authority
- CN
- China
- Prior art keywords
- led
- chassis
- display device
- backlit
- light
- 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.)
- Granted
Links
Images
Abstract
The invention provides LED (Light-Emitting Diode) backlight display equipment which comprises LED light emitting units, a light guide plate, a reflector, a diffuser, a liquid crystal display screen and a frame, wherein the LED light emitting units are used for providing a backlight source for the display equipment; the frame is used for accommodating and fixing the LED light emitting units, the light guide plate, the reflector, the diffuser and the liquid crystal display screen; an LED light bar is formed by a plurality of LED light emitting units; the frame is of a spliced structure; and a groove for accommodating the LED light bar is formed at the spliced position. Due to the utilization of the LED backlight display equipment, the weight and the thickness of the integral display equipment can be reduced; the using amount of LEDs is reduced; due to the adoption of the frame structure in a spliced mode, the display equipment can be ensured to be made into any size; and an LED light source is embedded at the spliced position, so that the aim of improving the brightness of backlight and the contrast ratio of a display by utilizing a regional control mode is fulfilled.
Description
Technical field
The present invention relates to display technique field, LED-backlit source, more particularly, relate to a kind of spliced LED-backlit source display device.
Background technology
Along with the progress of society and the development of technology; The display device of LED (light-emittingdiode Light Emitting Diode) backlight with its reliability height, long service life, the display device of characteristics substitute gradually traditional C CFL (cathode fluorescent tube Cold CathodeFluorescent Lamp) backlight such as adaptive capacity to environment is strong, cost performance is reasonable, use cost is low becomes the main product that large flat shows rapidly, obtained using widely in field of information display.The huge market demand impels liquid crystal panel manufacturer and national governments activity investments to set up the LED product line of a new generation, in this case, satisfies 55 inches and following liquid crystal panel 8.5 generation production line and builds like the mushrooms after rain.When various countries actively build 8.5 generation lines, with leading panel vendors such as Korea S's Samsung and Japanese Sharps, especially actively to higher line generation---can satisfy that 65 inches and above HDTV, exhibition room display and advertisement display board etc. use 10 generations line invest.
The backing structure of 55 inches of traditional LED-backlit source and following display device generally has following two kinds:
1, downward back photo structure
Fig. 1 is the principle of luminosity synoptic diagram of downward back light device in the conventional art; As shown in Figure 1; Light sends from the array of being made up of LED1; In order to reach the purpose of uniform area light source,, need above the air layer d of led array certain distance, to increase again a diffuser plate 27 in conjunction with LED self luminous characteristics.Though led array can be made infinity on the principle; But because the existence of air layer d; Increase the thickness of whole display undoubtedly, because this class display needs a large number of LED to do support, also increased the energy consumption of display from another point of view simultaneously; Be unfavorable for the reduction of display use cost, therefore this backing structure can't be made superhuge display device.
2, side entrance back structure
Fig. 2 is the principle of luminosity synoptic diagram of side entrance back equipment in the conventional art, and is as shown in Figure 2, and light penetrates from the lamp bar of being made up of LED1, through LGP 28, forms uniform surface light source.But because the LED brightness range is limit at present; LGP width l as shown in Figure 3 also must be restricted; And because this type of design LED luminescence unit 100 is positioned at the periphery of display; Therefore be difficult to fundamentally improve the dynamic contrast of whole display, thereby make this backing structure can't make superhuge display device equally.
Thus, need a kind of LED of design can accomplish 65 inches even bigger display device, and if this display device satisfy the performance requirement of low cost, low energy consumption, high brightness and contrast as backlight, size.
Summary of the invention
In view of the above problems; The purpose of this invention is to provide a kind of LED-backlit source display device; Be included as the framework that display device provides LED luminescence unit, LGP, reflector plate, diffusion sheet, the LCDs of back light and holds fixing above-mentioned each optical component, wherein, a plurality of said LED luminescence units are formed LED lamp bar; Said framework is a splicing construction, and forms the groove that holds said LED lamp bar in said jointing positions.
Wherein, preferred construction is that said LED luminescence unit comprises the aluminium base that is provided with P.e.c., LED encapsulation unit and the secondary lens that combines from bottom to top.
In addition, preferred construction is, a plurality of LED encapsulation units are welded on the aluminium base of a strip and form said LED lamp bar, and each LED encapsulation unit is corresponding respectively to combine a secondary lens independently.
Moreover preferred construction is, a plurality of said LED encapsulation units are welded on the aluminium base of a strip and form said LED lamp bar; Said secondary lens is and the corresponding lens bar of said LED lamp bar, and said lens bar combines with all LED encapsulation units on the said LED lamp bar.
Moreover preferred construction is that said framework comprises the chassis with splicing construction;
Said chassis comprises chassis, at least two edges and at least one middle chassis, and said chassis jointing positions forms the embedding groove of said LED lamp bar.
Moreover preferred construction is, said chassis comprises chassis, at least four edges, at least four middle chassis and at least one central chassis, and said chassis jointing positions forms the embedding groove of said LED lamp bar.
Beneficial effect of the present invention is:
1, Embedded LED luminescence unit has overcome the air layer thickness between general direct-type backlight LED and the diffuser plate, makes whole display device light more and thin;
2, the embedded LED luminescence unit is compared with direct-type backlight, has reduced the use amount of LED, thereby has reduced energy consumption, has practiced thrift cost;
3, can carry out the embedded LED luminescence unit of Region control, can effectively improve the contrast of display device, also can overcome the low characteristics of general side entering type display device brightness simultaneously;
4, can carry out the embedded LED luminescence unit of Region control, can guarantee that display device makes any large scale and do not reduce brightness backlight;
5, the chassis is divided into edge metal chassis, intermetallic metal chassis and central metal chassis, and the chassis can be spliced arbitrarily according to the needs of actual displayed device product, provides safeguard thereby make any large scale for whole display device.
Utilize technique scheme provided by the invention; Can display device be accomplished infinity, ultra-thin in theory; And LED-backlit source constructed in accordance display device brightness is high, cost is low, dynamic contrast to, energy-conservation; The present invention adopts LED as backlight, goes for 65 inches and above liquid crystal display, can be widely used in HDTV, show that Room display and advertisement display board etc. need the display device of high definition, giant-screen.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention comprise the characteristic that the back will specify and in claim, particularly point out.Following explanation and accompanying drawing have specified some illustrative aspects of the present invention.Yet, the indication of these aspects only be some modes that can use in the variety of way of principle of the present invention.In addition, the present invention is intended to comprise all these aspects and their equivalent.
Description of drawings
Through with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with to more complete understanding of the present invention, other purpose of the present invention and result will understand more and reach easy to understand.In the accompanying drawings:
Fig. 1 is a conventional art downward back light device synoptic diagram;
Fig. 2 is a conventional art side entrance back equipment synoptic diagram;
Fig. 3 is the concrete structure synoptic diagram of LED-backlit of the present invention source display device;
Fig. 4 is the LED luminescence unit synoptic diagram of LED encapsulation of the present invention and lens and aluminium base composition;
Fig. 5 is the side view of the LED lamp bar that constitutes of LED luminescence unit of the present invention;
Fig. 6 is the present invention's encapsulation backlight chassis synoptic diagram;
Fig. 7 is that backlight chassis connecting method of the present invention and LED embed synoptic diagram;
Fig. 8 is LED encapsulation embodiment two synoptic diagram of the present invention;
Fig. 9 a and Fig. 9 b are respectively the splicing embodiment synoptic diagram of metal chassis of the present invention;
Figure 10 is the another splicing embodiment synoptic diagram of metal chassis of the present invention;
Figure 11 is the present invention's encapsulation synoptic diagram backlight;
Figure 12 is a diffusion sheet printing embodiment synoptic diagram of the present invention.
Identical label is indicated similar or corresponding feature or function in institute's drawings attached.
Embodiment
Below will combine accompanying drawing that specific embodiment of the present invention is described in detail.
Fig. 3 is the concrete structure synoptic diagram of LED-backlit of the present invention source display device; As shown in Figure 3, LED-backlit provided by the invention source display device is included as display device to be provided the LED luminescence unit 100 of back light, LGP 7, reflector plate 9, diffusion sheet 10, prismatic lens 12, brightening piece 13, LCDs 15 and holds the framework of fixing above-mentioned each optical component.
Wherein LED luminescence unit 100 embeds in the groove of base of frame, and each LED luminescence unit all comprises aluminium base 2, LED encapsulation unit 110 and the secondary lens 6 that combines from bottom to top; LED encapsulation unit 110 comprises the packaging plastic 18 of led light source 1 and this led light source of encapsulation.
Light that led light source 1 sends gets into secondary lens 6 through packaging plastic 18 backs, gets into LGP 7 after the reflection of a part via the upper surface of the secondary lens 6 relative with led light source 1, and a part directly goes out to inject diffusion sheet 10 from the upper surface of secondary lens 6.Light transmits in LGP 7, after running into the site 8 that is arranged on LGP 7 bottoms, forms scattering; The part of the light of 8 scatterings is LGP 7 and the relative one side outgoing of site 8 place faces from the upper surface of LGP 7 through the site, and a part of light continues transmission, scattering once more after running into site 8 once more in LGP 7; When the incident angle of light directive LGP 7 upper surfaces after the scattering during less than the angle of total reflection, light is from the upper surface outgoing of LGP 7.Light from LGP 7 lower surfaces penetrate gets into LGP 7 via the reflector plate that is arranged on LGP 7 bottoms 9 reflection backs and utilizes once more, and LGP 7 is carried by reflector plate 9.Light gets into diffusion sheet 10 after penetrating from LGP 7, and light has promptly formed and the area source of uniform source of light is provided for LCDs 15 after diffusion sheet 10 outgoing.
Because there is relaxation phenomenon in light in the optical component transmission course; Therefore in a preferred implementation of the present invention; In order to make to LCDs 15 whole area source stable homogeneous backlight is provided; Homogeneous is soft more to make LCDs 15 display frames; Do grey printing (position shown in 11 among Fig. 3) at diffusion sheet 10 above corresponding to LED luminescence unit 100; So just can weaken the brightness of directly injecting this part light of diffusion sheet 10 without LGP 7 transmission, make brightness that this part light finally penetrates from diffusion sheet 10 suitable, thereby reach the purpose that makes the area source stable homogeneous that finally offers LCDs 15 with the brightness of the light that penetrates from diffusion sheet 10 again through LGP 7 transmission from secondary lens 6.
In addition; For the light that led light source 1 is sent passes through more concentrated area directive LCDs 15 of packaging plastic 18, secondary lens 6, LGP 7 and diffusion sheet 10; Between diffusion sheet 10 and LCDs 15, also be provided with prismatic lens 12, directive LCDs 15 again after concentrating in order to the light that diffusion sheet 10 is penetrated.Further; In order to improve the utilization factor of light, between prismatic lens 12 and LCDs 15, also be provided with have P, the brightening piece 13 of the two-way utilization of S, scientific utilization pointolite principle of reflection; And the optical curvature of revising improvement; The led light source utilization factor is performed to the limit of light output, thereby promote brightness, the optical radiation degree that led light source 1 finally offers the light of LCDs 15, practice thrift the quantity and the power consumption of led light source.
Above-mentioned each optical component is received and is fixed on a framework; As shown in Figure 3; This framework comprises metal chassis, plastic cement frame 14 and metal bead 16, and metal chassis is splicing construction (so that display device is accomplished any large scale), comprises edge metal chassis 3 and intermetallic metal chassis 4; LCDs 15 is placed on the plastic cement frame 14, metal bead 16 with LCDs 15 pressing and fixing on plastic cement frame 14.In addition, between LCDs 15 and plastic cement frame 14, also be provided with the silicagel pad (not shown) that supports usefulness, so that strengthen the pressing property between LCDs 15 and the plastic cement frame 14 and damping, anti-skidding effect are provided for LCDs 15.
In addition; Need to prove; In metal chassis splicing construction shown in Figure 3, the depression on chassis is along with being spliced to form, but the formation of depression is not limited to form shown in Figure 3; Also can be with concave design in inside, chassis but not jointing positions, jointing positions just realizes the effect of simple chassis splicing.
Fig. 4 shows the structural representation according to 100 1 preferred embodiments of LED luminescence unit in the display device of LED-backlit of the present invention source; As shown in Figure 4; LED luminescence unit 100 comprises the aluminium base 2 of LED encapsulation unit, secondary lens 6 and fixed L ED encapsulation unit; Wherein secondary lens 6 is arranged on the LED encapsulation unit, disperses to reflex to LGP in order to the light that the LED encapsulation unit is sent.
In preferred embodiment shown in Figure 4, LED encapsulation unit comprises two LEDs light sources 1, two reverberation bowl cups 17 and encapsulates the packaging plastic 18 of this LED encapsulation unit.Whole LEDs encapsulation unit is welded on the aluminium base 2 that P.e.c. is set.Secondary lens 6 comprises reflecting surface 19 and exiting surface 20.
Three kinds of trends of in Fig. 4, having showed the light that sends by led light source 1:
A part light such as the L1 bowl cup 17 reflection backs that are reflected get into packaging plastics 18, then get into secondary lens 6, and light is through behind the reflecting surface 19 of lens, and light is by secondary reflection again, from exiting surface 20 outgoing;
Part light such as L2 are through behind the packaging plastic 18, after reflecting surface 19 reflections, directly from exiting surface 20 outgoing;
Part light such as L3, through behind the packaging plastic 18, penetration face 19 is gone out from reflecting surface 19 transmissions.
Preferably transmittance is more than 90% secondary lens 6 wherein, refractive index is in 1.46～1.53 silica-gel lens, is preferably the silica-gel lens of refractive index about 1.48, and the concrete structure of lens 6 and shape also can be made various changes according to actual optics needs.In embodiment shown in Figure 4, the tangent plane of secondary lens 6 is 1/4 circle, and wherein reflecting surface 19 is 1/4 circular arc, and exiting surface is a perpendicular.
Fig. 5 is the side view that LED lamp bar that several LED luminescence units 100 shown in Figure 4 are combined formation is embedded in the splicing chassis; As shown in Figure 5; LED luminescence unit 100 of the present invention is one and is fixed on formed LED lamp bar on the aluminium base 2 of strip by a plurality of LED encapsulation units 110 with secondary lens 6 that each LED encapsulation unit 110 is complementary; Also can be regarded as a plurality of LED luminescence units 100 and be combined into the LED lamp bar that embeds in the formed groove in splicing chassis, gib screw 22 is used for LED lamp bar is fixed on the groove on chassis.The quantity of LED luminescence unit can be confirmed according to the difference of light source type and the requirement of display device itself flexibly in the LED lamp bar.
Fig. 6 and Fig. 7 are respectively the integral body and the details simplified schematic diagram of the connecting method on encapsulation chassis among the present invention; Like Fig. 6 and shown in Figure 7; The whole LED luminescence unit 100 of LED-backlit of the present invention source display device is screwed on chassis, edge 3 and middle chassis 4; In connecting method shown in Figure 6, metal chassis is divided into edge metal chassis 3 and intermetallic metal chassis 4, and the place of chassis handing-over is the embedding groove of LED luminescence unit 100; The effect of groove is that LED luminescence unit 100 and two chassis are fixed, and LED is embedded in the middle of the chassis.The general screw that adopts is fixed chassis and LED luminescence unit, also can adopt edge metal chassis, central metal chassis and LED luminescence unit like the fixing handing-over of other modes such as high viscosity heat-conducting silicone grease.
Fig. 7 is the details simplified schematic diagram of chassis connecting method and LED luminescence unit embedded mode; As shown in Figure 7; There is the LED luminescence unit to embed zone 23 and 24 between chassis, edge 3 and the middle chassis 4; Wherein 23 is the aluminium base embedding zone of LED luminescence unit 100, and 24 is the embedding zone of the LED encapsulation unit of LED luminescence unit, and 25 is the screw of fixed underpan and LED luminescence unit.Whole design of the present invention had both guaranteed the area of dissipation of LED aluminium base, can well fix the LED luminescence unit again simultaneously, guaranteed that the LED luminescence unit bending can in use not occur and cause image quality bad, thereby guaranteed the reliability of product quality.
So far; Can find out; Fig. 3 and structure shown in Figure 6 are one of the present invention and have comprised by what chassis, two edges and middle chassis constituted having two grooves, can embed the structure of the schematic illustration of two LED luminescence units, it will be appreciated by those skilled in the art that the statement according to technique scheme; Chassis, edge wherein, middle chassis and LED luminescence unit can be made the needed length and width size of any display device product; Can also adopt simultaneously the mode that increases middle chassis to reach the needed length and width size of display device product, the connecting method between the middle chassis is identical with the connecting method on middle chassis and chassis, edge, in this way; The present invention just can realize any splicing of chassis and LED luminescence unit, provides safeguard thereby make any large scale for whole display device.
In the above-described embodiments, the top of every LEDs light source is provided with a secondary lens 6, and certainly, secondary lens also can be a lens bar, is applicable to the whole LED lamp bar of bar shaped.In addition, the concrete structure of secondary lens and shape mode also can be made various modifications according to actual optics needs, and these revise the mode that all belongs to knowledge that those skilled in the art know.
Fig. 8 is the structural representation of LED luminescence unit embodiment two among the present invention; As shown in Figure 8; In a preferred implementation of the present invention; Secondary lens can also be directly and the mode of LED encapsulation unit through gummed be designed to integrative-structure, be fixed on and form LED luminescence unit 100 ' on the aluminium base 2.
Fig. 9 a and Fig. 9 b are respectively the synoptic diagram of two embodiment of metal chassis among the present invention; Metal chassis among Fig. 9 a only comprises the edge metal chassis 3 of an intermetallic metal chassis 4 and two and its splicing, and the metal chassis among Fig. 9 b comprises the edge metal chassis 3 of two metal chassis 4 and two and its splicing.As previously mentioned, the splicing that intermetallic metal chassis 4 also can any amount provides safeguard thereby can make any large scale for whole display device.
Corresponding with the splicing construction of metal chassis; Diffusion sheet 10 and LGP 7 also can be designed as the splicing construction of edge diffusion sheet, edge LGP, middle diffusion sheet and middle LGP (not shown) here; Wherein corresponding light guide plate mesh point layout distributes according to actual conditions, and principle is to begin to increasing gradually away from the light source dot density from light source.Equally, reflector plate 9 also can be designed as the reflector plate with the corresponding splicing construction of chassis splicing construction.
In addition; In another preferred implementation of the present invention; Posting reflective adhesive tape (not shown) with the pairing LGP 7 in edge metal chassis here away from the side of LED, utilizing, thereby improving the utilization factor of light so that will reflect again away from the light of the side outgoing of LED from LGP 7.
Reflective adhesive tape material can be micro-foaming material knot and the binder of high transmission rate of nanometer to micron powder or other nanometers to the micron order high index of refraction of SiO2, TiO2, SnO2, CaCO2, Nb2O5, ZnO2, MgF2, CeO2, Al2O3, HfO2, Na3LaF6, LaF6TiO2 at least a material wherein, pastes through roll extrusion or compound mode on the base material such as PET to form.
Figure 10 is the structural representation of metal chassis embodiment two among the present invention, and according to design shown in Figure 10, the chassis comprises three kinds of chassis, edge D1, middle chassis D2 and central chassis D3, and the LED luminescence unit is embedded in the formed groove of chassis jointing positions.The splicing of any amount of chassis, four edges and some middle chassis D2, central chassis D3 can guarantee that whole display device makes any large scale.The groove that can certainly hold the LED luminescence unit in three kinds of chassis set inside shown in Figure 10, the edge on chassis are only done splicing and are used.
Equally, corresponding with the splicing construction of metal chassis, diffusion sheet and LGP also are divided into edge diffusion sheet, edge LGP, middle diffusion sheet, middle LGP, central diffusion sheet, central LGP (not shown) here.Corresponding light guide plate mesh point layout distributes according to actual conditions, and principle is to begin to increasing gradually away from the light source dot density from light source.
In addition; The 7 side outgoing away from LED cause waste for fear of light from LGP; LGP and middle LGP post reflective adhesive tape (not shown) here away from the side of LED on the edge of, will reflect again away from the light of the side outgoing of LED from LGP to utilize, to improve the utilization factor of light.Central authorities' LGP is because it all has LED all around, so this LGP need not pasted reflective adhesive tape all around.
Reflective adhesive tape material can be micro-foaming material knot and the binder of high transmission rate of nanometer to micron powder or other nanometers to the micron order high index of refraction of SiO2, TiO2, SnO2, CaCO2, Nb2O5, ZnO2, MgF2, CeO2, Al2O3, HfO2, Na3LaF6, LaF6TiO2 at least a material wherein, pastes through roll extrusion or compound mode on the base material such as PET to form.
In design proposal of the present invention; Because the LED luminescence unit is embedded in the formed groove of chassis jointing positions; Therefore, in order to improve the brightness and contrast of whole display device, can increase the splicing quantity of middle chassis D2 and central chassis D3; Thereby increase the groove quantity of jointing positions, to guarantee to embed LED light-emitting section and the quantity of LED luminescence unit 100 wherein.And; Because the natural division of embedded groove makes the brightness of each LED light-emitting section to control separately, thereby whole display device is divided into some each zones by the LED light-emitting section; So just realize the Region control of display device, thereby improved the contrast of display device.
Figure 11 is the structural representation of the encapsulation backlight of LED-backlit of the present invention source display device; Shown in figure 11; Metal chassis, LED luminescence unit 100, secondary lens 6, reflector plate 9 and LGP 7 are combined, and form the encapsulation backlight 120 of LED-backlit source display device.
With encapsulation backlight shown in Figure 11 correspondingly, metal chassis also can adopt Fig. 9 or embodiment shown in Figure 10, LED luminescence unit 100 also can adopt embodiment shown in Figure 4, secondary lens 6 also can adopt Fig. 4 or embodiment shown in Figure 8.
In addition; Reflector plate and LGP also can adopt Fig. 9 or shown in Figure 10 dividing accordingly with metal chassis; Be that edge diffusion sheet and LGP also are divided into edge diffusion sheet, edge LGP, middle diffusion sheet, middle LGP, central diffusion sheet, central LGP.
In order to prevent that dark portion or speck from appearring in LED luminescence unit 100 tops, first-selected mode is the shape of the curved surface 19 of adjustment lens 6.Through using Light tools or optics simulation and optimization softwares such as Zmex or CodeV,, optimize lens-shape according to the characteristics of luminescence and the lens material of LED.
In addition, bright band occurs, can diffusion sheet as shown in Figure 1 10 be done the grey printing treatment in said LED luminescence unit 100 corresponding positions in order to prevent LED luminescence unit 100 tops.
Figure 12 is the embodiment of said diffusion sheet printing, and shown in figure 12, the grey printing shown in 11 is done in the corresponding position of LED luminescence unit 100 on diffusion sheet 10, and the color depth of grey can be decided according to actual conditions.
Above-mentioned all component is fixed on the chassis of edge metal chassis 3 and 4 assembly units of intermetallic metal chassis by plastic cement frame 14; LCDs 15 is placed on the plastic cement frame 14 by the support of silicagel pad (not shown), at last by metal bead/frame 16 immobile liquid crystal display screens 15.
As above with the mode of example the structure according to LED-backlit of the present invention source display device is described with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the LED-backlit source display device that proposes for the invention described above, can also on the basis that does not break away from content of the present invention, make various improvement.Therefore, protection scope of the present invention should be confirmed by the content of appending claims.
Claims (13)
1. a LED-backlit source display device is included as the framework that display device provides LED luminescence unit, LGP, reflector plate, diffusion sheet, the LCDs of back light and holds fixing above-mentioned each optical component, it is characterized in that,
A plurality of said LED luminescence units are formed LED lamp bar,
Said framework is a splicing construction, and forms the groove that holds said LED lamp bar in said jointing positions.
2. LED-backlit as claimed in claim 1 source display device, wherein,
Said LED luminescence unit comprises the aluminium base that is provided with P.e.c., LED encapsulation unit and the secondary lens that combines from bottom to top.
3. LED-backlit as claimed in claim 2 source display device, wherein,
A plurality of LED encapsulation units are welded on and form said LED lamp bar on the aluminium base of a strip, and each LED encapsulation unit is corresponding respectively to combine a secondary lens independently.
4. LED-backlit as claimed in claim 2 source display device, wherein,
A plurality of said LED encapsulation units are welded on and form said LED lamp bar on the aluminium base of a strip;
Said secondary lens is and the corresponding lens bar of said LED lamp bar, and said lens bar combines with all LED encapsulation units on the said LED lamp bar.
5. like claim 3 or 4 described LED-backlit source display devices, wherein,
Said LED encapsulation unit comprises the packaging plastic of led light source and the said led light source of encapsulation.
6. like claim 3 or 4 described LED-backlit source display devices, wherein,
Said LED encapsulation unit comprises two LEDs light sources, two reverberation bowl cups and encapsulates the packaging plastic of said LED encapsulation unit; Said two reverberation bowl cups are separately positioned on the outside of said two LEDs light sources, thus make light that said led light source penetrates all directive be arranged on the secondary lens above the LED encapsulation unit.
7. LED-backlit as claimed in claim 6 source display device, wherein,
Also be provided with between said diffusion sheet and the LCDs concentrate in order to the light that said diffusion sheet is penetrated after the prismatic lens of the said LCDs of directive again.
8. LED-backlit as claimed in claim 7 source display device, wherein,
Between said prismatic lens and said LCDs, also be provided with have P, the brightening piece of the two-way utilization of S.
9. LED-backlit as claimed in claim 6 source display device, wherein,
Act on above at said diffusion sheet and to weaken the grey printing of penetrating light luminance corresponding to said LED luminescence unit.
10. LED-backlit as claimed in claim 6 source display device, wherein,
Said secondary lens selects that transmittance is more than 90% for use, refractive index is in 1.46～1.53 silica-gel lens.
11. LED-backlit as claimed in claim 1 source display device, wherein,
Said framework comprises the chassis with splicing construction;
Said chassis comprises chassis, at least two edges and at least one middle chassis, and said chassis jointing positions forms the embedding groove of said LED lamp bar.
12. LED-backlit as claimed in claim 1 source display device, wherein,
Said framework comprises the chassis with splicing construction;
Said chassis comprises chassis, at least four edges, at least four middle chassis and at least one central chassis, and said chassis jointing positions forms the embedding groove of said LED lamp bar.
13. like claim 11 or 12 described LED-backlit source display devices, wherein,
Said reflector plate, LGP and diffusion sheet are and the corresponding splicing construction of the splicing construction on said chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609610.3A CN102566139B (en) | 2010-12-28 | 2010-12-28 | LED (Light-Emitting Diode) backlight display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609610.3A CN102566139B (en) | 2010-12-28 | 2010-12-28 | LED (Light-Emitting Diode) backlight display equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102566139A true CN102566139A (en) | 2012-07-11 |
| CN102566139B CN102566139B (en) | 2014-12-24 |
Family
ID=46411925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010609610.3A Active CN102566139B (en) | 2010-12-28 | 2010-12-28 | LED (Light-Emitting Diode) backlight display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102566139B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411167A (en) * | 2013-08-27 | 2013-11-27 | 苏州茂立光电科技有限公司 | Direct type backlight module |
| CN104676354A (en) * | 2013-11-28 | 2015-06-03 | 富泰华精密电子（郑州）有限公司 | Backlight module |
| CN104748021A (en) * | 2013-12-31 | 2015-07-01 | 欧普照明股份有限公司 | LED lighting device |
| CN105139759A (en) * | 2015-09-18 | 2015-12-09 | 京东方科技集团股份有限公司 | Splicing screen |
| CN106790789A (en) * | 2016-11-30 | 2017-05-31 | 维沃移动通信有限公司 | Center ray structure and mobile terminal |
| CN106886106A (en) * | 2017-02-16 | 2017-06-23 | 广州毅昌科技股份有限公司 | A kind of ultrathin backlight module |
| CN107577075A (en) * | 2016-07-04 | 2018-01-12 | Lg 电子株式会社 | Display device |
| CN109343278A (en) * | 2018-12-18 | 2019-02-15 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN110843458A (en) * | 2019-10-30 | 2020-02-28 | 宁波福尔达智能科技有限公司 | Atmosphere lamp for automobile air conditioner controller panel and manufacturing process thereof |
| CN111540731A (en) * | 2020-05-08 | 2020-08-14 | 智行天下(北京)咨询有限公司 | Luminous display screen with light source transition area |
| WO2020238180A1 (en) * | 2019-05-27 | 2020-12-03 | 惠州市华星光电技术有限公司 | Thin lamp panel and fabrication method therefor |
| CN112728456A (en) * | 2020-12-31 | 2021-04-30 | 深圳创维－Rgb电子有限公司 | Screen lighting effect component mounting structure and display device |
| CN114217479A (en) * | 2022-02-09 | 2022-03-22 | 深圳创维－Rgb电子有限公司 | Optical assembly, backlight module and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699332Y (en) * | 2004-05-11 | 2005-05-11 | 科桥电子股份有限公司 | Tube dismantling and exchange equipment |
| CN1786792A (en) * | 2004-12-09 | 2006-06-14 | 联准实业有限公司 | Large size back light module |
| CN1841159A (en) * | 2005-04-01 | 2006-10-04 | 安捷伦科技有限公司 | Light-emitting apparatus having a plurality of overlapping panels forming recesses from which light is emitted |
| CN1909028A (en) * | 2005-08-01 | 2007-02-07 | 南京汉德森科技股份有限公司 | LED two-dimensional light-emitting module and LED display screen |
| CN101029997A (en) * | 2006-03-01 | 2007-09-05 | 中华映管股份有限公司 | Back-light module and liquid-crystal display device |
| CN101435945A (en) * | 2007-11-13 | 2009-05-20 | 上海广电Nec液晶显示器有限公司 | Backlight source of liquid crystal display |
| WO2010070950A1 (en) * | 2008-12-18 | 2010-06-24 | シャープ株式会社 | Illumination device, display device, and television reception device |
| CN201945776U (en) * | 2010-12-28 | 2011-08-24 | 歌尔声学股份有限公司 | LED backlight display device |
-
2010
- 2010-12-28 CN CN201010609610.3A patent/CN102566139B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699332Y (en) * | 2004-05-11 | 2005-05-11 | 科桥电子股份有限公司 | Tube dismantling and exchange equipment |
| CN1786792A (en) * | 2004-12-09 | 2006-06-14 | 联准实业有限公司 | Large size back light module |
| CN1841159A (en) * | 2005-04-01 | 2006-10-04 | 安捷伦科技有限公司 | Light-emitting apparatus having a plurality of overlapping panels forming recesses from which light is emitted |
| CN1909028A (en) * | 2005-08-01 | 2007-02-07 | 南京汉德森科技股份有限公司 | LED two-dimensional light-emitting module and LED display screen |
| CN101029997A (en) * | 2006-03-01 | 2007-09-05 | 中华映管股份有限公司 | Back-light module and liquid-crystal display device |
| CN101435945A (en) * | 2007-11-13 | 2009-05-20 | 上海广电Nec液晶显示器有限公司 | Backlight source of liquid crystal display |
| WO2010070950A1 (en) * | 2008-12-18 | 2010-06-24 | シャープ株式会社 | Illumination device, display device, and television reception device |
| CN201945776U (en) * | 2010-12-28 | 2011-08-24 | 歌尔声学股份有限公司 | LED backlight display device |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411167B (en) * | 2013-08-27 | 2015-08-26 | 苏州茂立光电科技有限公司 | Direct type backlight module |
| CN103411167A (en) * | 2013-08-27 | 2013-11-27 | 苏州茂立光电科技有限公司 | Direct type backlight module |
| CN104676354A (en) * | 2013-11-28 | 2015-06-03 | 富泰华精密电子（郑州）有限公司 | Backlight module |
| CN104748021A (en) * | 2013-12-31 | 2015-07-01 | 欧普照明股份有限公司 | LED lighting device |
| CN105139759B (en) * | 2015-09-18 | 2017-10-10 | 京东方科技集团股份有限公司 | A kind of mosaic screen |
| CN105139759A (en) * | 2015-09-18 | 2015-12-09 | 京东方科技集团股份有限公司 | Splicing screen |
| US10203535B2 (en) | 2015-09-18 | 2019-02-12 | Boe Technology Group Co., Ltd. | Mosaic screen |
| CN107577075A (en) * | 2016-07-04 | 2018-01-12 | Lg 电子株式会社 | Display device |
| CN107577075B (en) * | 2016-07-04 | 2020-10-30 | Lg 电子株式会社 | Display device |
| CN106790789A (en) * | 2016-11-30 | 2017-05-31 | 维沃移动通信有限公司 | Center ray structure and mobile terminal |
| CN106886106A (en) * | 2017-02-16 | 2017-06-23 | 广州毅昌科技股份有限公司 | A kind of ultrathin backlight module |
| CN109343278A (en) * | 2018-12-18 | 2019-02-15 | 武汉天马微电子有限公司 | Backlight module and display device |
| WO2020238180A1 (en) * | 2019-05-27 | 2020-12-03 | 惠州市华星光电技术有限公司 | Thin lamp panel and fabrication method therefor |
| CN110843458A (en) * | 2019-10-30 | 2020-02-28 | 宁波福尔达智能科技有限公司 | Atmosphere lamp for automobile air conditioner controller panel and manufacturing process thereof |
| CN111540731A (en) * | 2020-05-08 | 2020-08-14 | 智行天下(北京)咨询有限公司 | Luminous display screen with light source transition area |
| CN111540731B (en) * | 2020-05-08 | 2022-01-11 | 深圳市双禹盛泰科技有限公司 | Luminous display screen with light source transition area |
| CN112728456A (en) * | 2020-12-31 | 2021-04-30 | 深圳创维－Rgb电子有限公司 | Screen lighting effect component mounting structure and display device |
| CN114217479A (en) * | 2022-02-09 | 2022-03-22 | 深圳创维－Rgb电子有限公司 | Optical assembly, backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102566139B (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201945776U (en) | LED backlight display device | |
| CN102566139B (en) | LED (Light-Emitting Diode) backlight display equipment | |
| CN100555037C (en) | Module backlight | |
| US7267451B2 (en) | Backlight module without light guiding plate and diffusing plate | |
| US10241255B2 (en) | Backlight module and liquid crystal display | |
| CN202056691U (en) | Backlight module of display and liquid crystal display | |
| CN102620193A (en) | Sectional light emitting diode (LED) backlight module and liquid crystal display device | |
| CN101561085A (en) | Wide-angle LED light source | |
| CN101071230A (en) | Liquid crystal display device and its backlight module | |
| CN101725915B (en) | Back light module | |
| CN1688028A (en) | Face light source module based on LED | |
| CN102691936A (en) | Backlight module and liquid crystal display device | |
| CN105242457A (en) | Light guide device with high color saturation | |
| US8860910B2 (en) | Backlight module and display apparatus | |
| CN202469747U (en) | Sidelight-type backlight module and display device | |
| CN102853343A (en) | Direct-lit backlight and display | |
| KR20120122642A (en) | Reflective light source type light guide system of sidelight type backlight unit | |
| CN102182968A (en) | Novel LED (light-emitted diode) backlight module | |
| CN109683398A (en) | Backlight module and display device | |
| CN214845858U (en) | Blast panel and blast device | |
| CN100489623C (en) | Backlight source device | |
| CN102720987A (en) | Light emitting diode (LED) area source employing side light emitting bar | |
| CN102720990A (en) | Lateral type light-emitting diode (LED) backlight module with glass light guide plate | |
| CN102367936A (en) | LED (light emitting diode) light source used for sidelight type backlight source module | |
| CN101968186A (en) | Large luminous angle LED backlight source module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 No. 268 Dongfang Road, Weifang hi tech Industrial Development Zone, Shandong, Weifang Patentee before: Goertek Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: Fengli town Xinjian West Road, Rudong County, Nantong City, Jiangsu Province 226400 Patentee after: Rudong Wenyuan investment and Development Co., Ltd Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: GOERTEK Inc. |