CN105158978A - Backlight and display device - Google Patents
Backlight and display device Download PDFInfo
- Publication number
- CN105158978A CN105158978A CN201510695108.1A CN201510695108A CN105158978A CN 105158978 A CN105158978 A CN 105158978A CN 201510695108 A CN201510695108 A CN 201510695108A CN 105158978 A CN105158978 A CN 105158978A
- Authority
- CN
- China
- Prior art keywords
- backlight
- light source
- light
- rotary
- rotary district
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
Abstract
The invention provides a backlight and a display device. The backlight comprises a light-emitting unit and a diffusion plate. The light-emitting unit comprises a plurality of rotating areas, each rotating area is internally provided with at least one light source, and the light-out face of each light source faces towards the side wall of the backlight. Light irradiated to the side wall of the backlight can be reflected to the diffusion plate through the side wall of the backlight. The light sources in the backlight give out light to the side wall of the backlight in the rotating state, and the light is ejected from the diffusion plate after being reflected. When light mixing is conducted by a certain distance, the optical distance of the light from the light sources to the diffusion plate is increased, and thus the uniformity of the light which is irradiated to all the areas of the diffusion plate is improved, and the uniformity of a display frame can be improved easily; meanwhile, the thickness of the backlight can be reduced. In addition, compared with the prior art, the requirement for the light-emitting angle of each light source is low, and the cost of the backlight can be lowered correspondingly.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly, relate to a kind of backlight and display device.
Background technology
Backlight is that liquid crystal indicator realizes the indispensable ingredient of display.Existing backlight is mainly divided into direct-light-type backlight and side-edge type backlight.
Fig. 1 is the schematic diagram of existing direct-light-type backlight.As shown in Figure 1, this backlight comprises diffuser plate 11 and light source 14 (being generally LED), and described diffuser plate 11 and light source 14 are arranged on the backboard 12 of backlight and (illustrate only the sidewall of backboard 12 in Fig. 1).In backlight shown in Fig. 1, the light direction of light source 14 is towards diffuser plate 11 direction, and described light penetrates from the exiting surface of backlight through after diffuser plate 11.
In above-mentioned direct-light-type backlight, for making to be radiated at light on diffuser plate 11 as much as possible evenly (that is: to make on diffuser plate 11 brightness everywhere consistent as far as possible), on the one hand, the quantity of light source 14 can be increased, improving the distribution density of light source 14; But can cause the generation of amount of heat like this, when dispelling the heat in time, heat can cause parts damages such as diffuser plate 11 grade.On the other hand, can increase the lighting angle of light source 14, the light that each light source 14 is sent realizes mixed light largely; Such as, adopt the larger LED of lighting angle as light source 14, LED arranges lens to increase the modes such as its lighting angle; But the cost of backlight can be improved so undoubtedly.In addition, can also increase the distance between light source 14 and diffuser plate 11, the light that each light source 14 is sent realizes mixed light largely; So also can increase the homogeneity of the light be radiated on diffuser plate 11, but the thickness of backlight can be made so larger.
Summary of the invention
The present invention is intended at least to solve one of technical matters existed in prior art, and propose a kind of backlight and display device, it can reduce the thickness of backlight, and improves the uniformity of the light be radiated on diffuser plate, can also reduce costs simultaneously.
A kind of backlight is provided for realizing object of the present invention, it comprises luminescence unit and diffuser plate, described luminescence unit comprises multiple Rotary District, at least one light source is set in each Rotary District, the exiting surface of described light source towards the sidewall of described backlight, the sidewall of described backlight by the light reflection that irradiates thereon to diffuser plate.
Wherein, described backlight also comprises multiple driving mechanism, and each driving mechanism is corresponding with a Rotary District, rotates for driving this Rotary District.
Wherein, the sidewall of described backlight is coated with reflecting material by light-struck region that light source sends, or is pasted with reflector plate/reflective membrane.
Wherein, in each Rotary District, multiple light source is set, and each light source is positioned at outside the light direction of other each light sources on this Rotary District.
Wherein, the quantity of the light source in any two adjacent Rotary Districts is not identical.
Wherein, the speed of any two adjacent Rotary Districts rotations is different.
Wherein, the quantity of described each Rotary District inner light source is identical; In rotation status, in any two adjacent Rotary Districts corresponding light source light direction between there is the first predetermined deflection angle.
Wherein, any two adjacent Rotary Districts start the time difference of rotation when described backlight is luminous.
Wherein, before described backlight luminescence, between the corresponding light source of any two adjacent Rotary Districts, there is the second predetermined deflection angle.
Wherein, the speed of each described Rotary District rotation is identical.
Wherein, described each Rotary District is arranged in multirow and/or multiple row.
Wherein, described driving mechanism is motor, and described motor is fixed on the backboard of backlight, and described motor and light source lay respectively at the both sides of backboard, the driving shaft of described motor runs through described backboard, is connected at described light source side and a light source or the rotating disk that is provided with multiple light source.
Wherein, described driving mechanism is motor, and described motor is fixed on the backboard of backlight, and the driving shaft top of described motor is provided with a light source or rotating disk, and described rotating disk is provided with multiple light source, and the driving shaft of described motor runs through described backboard.
As another technical scheme, the present invention also provides a kind of display device, and it comprises above-mentioned backlight.
The present invention has following beneficial effect:
Backlight provided by the invention, its light source is luminous to the sidewall direction of backlight under rotation status, penetrate from diffuser plate after reflection, in light mixing distance one timing, light is increased by the light path between light source to diffuser plate, thus improve the homogeneity being radiated at the light in each region on diffuser plate, contribute to the homogeneity improving display frame; Meanwhile, the thickness of backlight can also be reduced.In addition, compared with prior art, in the present invention, less demanding to the lighting angle of light source, can the cost of corresponding reduction backlight.
Display device provided by the invention, it adopts above-mentioned backlight provided by the invention, can reduce the thickness of backlight, thus contributes to the thickness reducing display device; And, the homogeneity of backlight exiting surface can also be improved, thus contribute to improving display quality; In addition, can also reduce costs.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of existing direct-light-type backlight;
Fig. 2 is the schematic diagram of backlight in the first embodiment;
Fig. 3 is the schematic diagram of the backboard of backlight shown in Fig. 2;
Fig. 4 is the schematic diagram of the first structure of driving mechanism in backlight shown in Fig. 2;
Fig. 5 is the schematic diagram of the second structure of driving mechanism in backlight described in Fig. 2;
Fig. 6 is the schematic diagram of backlight in the second embodiment;
Fig. 7 is the schematic diagram of the first structure of driving mechanism in backlight shown in Fig. 6;
Fig. 8 is the schematic diagram of the second structure of driving mechanism in backlight shown in Fig. 6;
Fig. 9 is the schematic diagram of a kind of set-up mode of Rotary District light source in backlight shown in Fig. 6;
Figure 10 is the schematic diagram of backlight in the 3rd embodiment;
Figure 11 is the schematic diagram of backlight in the 4th embodiment.
Wherein, Reference numeral:
11: diffuser plate; 12: backboard; 13,13a, 13b, 13c, 13d: Rotary District; 14,14-1,14-2,14-3,14-4: light source; 15: driving mechanism.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of multiple embodiments of backlight.Fig. 2 is the schematic diagram of backlight in the first embodiment; Fig. 3 is the schematic diagram of the backboard of backlight shown in Fig. 2.As shown in Figures 2 and 3, described backlight comprises luminescence unit 10 and diffuser plate 11, and in addition, described backlight also comprises backboard 12 (illustrate only the sidewall of backboard 12 in Fig. 2), and described luminescence unit 10 and diffuser plate 11 are arranged on backboard 12.Described luminescence unit 10 comprises multiple Rotary District 13, a light source 14 is set in each Rotary District 13, the exiting surface of described light source 14 towards the sidewall (i.e. the sidewall of backboard 12) of described backlight, the sidewall of described backlight by the light reflection that irradiates thereon to diffuser plate 11.
When backlight works, each Rotary District 13 keeps rotation status; The light source 14 arranged in each Rotary District 13 emits beam, and in the rotary course of Rotary District 13, constantly be radiated at the regional of backlight surrounding sidewall, the sidewall of backlight then by this light reflection to the zones of different on diffuser plate 11, this region is lighted.Light source 14 acting in conjunction in multiple Rotary District 13, can light each region of diffuser plate 11, enables described backlight as an area source.
Light source 14 is light mixing distance with the spacing of diffuser plate 11, in the prior art, this light mixing distance is the light path of light between light source 14 to diffuser plate 11, be appreciated that, this light mixing distance is little, the light that then multiple light source 14 sends can not fully mix, make the homogeneity of the brightness of the light being radiated at zones of different on diffuser plate 11 poor, this light mixing distance is large, the light that multiple light source 14 sends can fully mix, make the brightness of the light being radiated at zones of different on diffuser plate 11 higher, but the thickness of backlight become large.And in present embodiment, in described light mixing distance one timing, light is increased relatively by the light path between light source 14 to diffuser plate 11, the light that multiple like this light source 14 sends can mix more fully, thus make the light exposing to each region on diffuser plate 11 more homogeneous, promote the homogeneity of diffuser plate 11 brightness throughout, but also the thickness of backlight can be reduced.Meanwhile, compared with prior art, in present embodiment, less demanding to the lighting angle of light source 14, can the cost of corresponding reduction backlight.
Described backlight also comprises multiple driving mechanism 15, and each driving mechanism 15 is corresponding with a Rotary District 13, rotates for driving this Rotary District 13.Particularly, described driving mechanism 15 is specifically as follows motor, and described motor is fixed on the backboard 12 of backlight and (is specially on the bottom surface of backboard 12).Particularly, as shown in Figure 4, be connected by modes such as screws between described light source 14 and the driving shaft of motor; Or as shown in Figure 5, described light source 14 is directly installed on the driving shaft of motor.When assembling backlight, by the driving shaft of motor through the hole on backboard 12, making described motor and light source 14 lay respectively at the both sides of backboard 12, then, by screw or buckle, motor being fixed on backboard 12.Thus when backlight works, described motor straight tape splicing moves connected light source 14 and rotates.
Preferably, the sidewall of described backlight is coated with reflecting material by light-struck region that light source 14 sends, or be pasted with reflector plate/reflective membrane, to make the sidewall of described backlight have higher reflectivity, thus by more light reflection on diffuser plate 11.Particularly, described reflecting material can be the materials such as silver, chromium.
Described each Rotary District 13 can be arranged in multirow and/or multiple row, as shown in Figure 3.Certainly, described each Rotary District 13 can also arrange according to other mode, and particularly, the arrangement mode of each Rotary District 13 is unanimously as the criterion with the intensity of the light being finally irradiated to zones of different on diffuser plate 11, as long as meet this requirement, each Rotary District 13 can arrange in any way.
Fig. 6 is the schematic diagram of backlight in the second embodiment.As shown in Figure 6, the difference of present embodiment and above-mentioned first embodiment is, the quantity of the light source 14 in each Rotary District 13 is multiple, and described multiple light source 14 is arranged on a rotating disk.Particularly, in present embodiment, the speed that each described Rotary District 13 rotates is identical.
In the present embodiment, particularly, described rotating disk can be connected with the driving shaft of motor by modes such as screws, as shown in Figure 7; For back light source structure shown in Fig. 7, when assembling, first, by the driving shaft of motor through the hole on backboard 12, by screw or buckle, motor is fixed on backboard 12, then the driving shaft of motor is connected with the rotating disk being positioned at backboard 12 opposite side; It is less that the hole being appreciated that on such backboard 12 can be arranged.Except embodiment illustrated in fig. 7, in the present embodiment, described rotating disk can also directly be fixed on the driving shaft of motor, as shown in Figure 8; For back light source structure shown in Fig. 8, when assembling, the driving shaft of motor and rotating disk being passed the hole on backboard 12, making motor and rotating disk lay respectively at the both sides of rotating disk 12, then, by screw or buckle, motor is fixed on backboard 12.Compared with structure shown in Fig. 7, in the present embodiment, the hole on backboard 12 needs the larger of setting.
In the present embodiment, the quantity of the light source 14 arranged in each Rotary District 13 is multiple, such as, shown in Fig. 64.Thus compared with above-mentioned first embodiment, the quantity of the light source arranged in backlight increases, and can improve homogeneity and the brightness of the light be radiated on diffuser plate.
In the present embodiment, the quantity of each Rotary District 13 inner light source 14 is identical, and light source 14 one_to_one corresponding in each Rotary District 13.Such as, in figure 6, Rotary District 13a, 13b, 13c, 13d ... four light sources 14 are inside respectively set, wherein, the direction of the light source 14-1 in each Rotary District is identical, and it is corresponding light source each other, similarly, light source 14-2 corresponding light source each other in each Rotary District, the light source 14-3 corresponding light source each other in each Rotary District, the light source 14-4 corresponding light source each other in each Rotary District.Particularly, the speed that each described Rotary District 13 rotates can be identical; Like this when Rotary District 13 is in rotation status, the relative position between each corresponding light source 14 is constant.
Preferably, in rotation status, in any two adjacent Rotary Districts 13 corresponding light source 14 light direction between there is the first predetermined deflection angle; That is, in rotation status, the light direction of the corresponding light source 14 in adjacent Rotary District 13 is different, the region between multiple light sources 14 of each Rotary District 13 can be made like this to be irradiated to by the light source 14 in adjacent Rotary District, thus to improve the homogeneity of the light be irradiated on diffuser plate 11 further.Particularly, the light source 14 in described Rotary District 13 can be set to: before described backlight luminescence, has the second predetermined deflection angle, as shown in the Rotary District 13a ~ 13d in Fig. 9 between the corresponding light source 14 of any two adjacent Rotary Districts 13; So when rotated, the corresponding light source 14 in adjacent Rotary District 13 can produce deviation in rotation status.Particularly, Rotary District 13 is progressively rotated by static, increase rotating speed to stable rotation status, in this process, the deviation when Rotary District 13 does not rotate between the corresponding light source 14 of adjacent Rotary District 13 is generally different from Rotary District 13 when being in stable rotation status, its deviation therebetween, therefore, when Rotary District is not rotated, deviation between the corresponding light source 14 of adjacent Rotary District 13 is the second predetermined deflection angle, and in rotation status, the deviation between the corresponding light source 14 of adjacent Rotary District 13 is the first predetermined deflection angle.
In addition to the implementation, in the present embodiment, before described backlight luminescence, the corresponding light source 14 of each Rotary District 13 towards can also be identical, and different by the time making any two adjacent Rotary Districts 13 start to rotate when described backlight is luminous, the corresponding light source 14 realizing the Rotary District 13 of arbitrary neighborhood has the first predetermined deflection angle in rotation status.
Particularly, in each Rotary District 13, each light source 14 is positioned at outside the light direction of other each light sources 14 on this Rotary District 13; The light direction of each light source 14 in each Rotary District 13 is in radiation, divergent shape.
Figure 10 is the schematic diagram of backlight in the 3rd embodiment.As shown in Figure 10, the difference of present embodiment and above-mentioned second embodiment is, the quantity of the light source in any two adjacent Rotary Districts 13 is not identical; That is, in present embodiment, in arbitrary neighborhood Rotary District 13, each light source 14 is not exclusively corresponding.Can ensure in rotation status like this, the light direction of each light source 14 in adjacent Rotary District 13 can not be completely the same, thus the illumination making the region between each light source 14 in each Rotary District 13 can be sent by the light source 14 in adjacent Rotary District 13 is mapped to, to improve the homogeneity of the light being radiated at each region on diffuser plate 11.Particularly, in present embodiment, the speed that each described Rotary District 13 rotates is identical.
Figure 11 is the schematic diagram of backlight in the 4th embodiment.As shown in figure 11, the difference of present embodiment and second, third embodiment above-mentioned is, the speed that any two adjacent Rotary Districts 13 rotate is different; Such as, for Rotary District 13a, its rotating speed is r1; For Rotary District 13b, its rotating speed is r2; For Rotary District 13c, its rotating speed is r3; For Rotary District 13d, its rotating speed is 13d.When quantity of light source like this in adjacent Rotary District 13 is identical, the relative position moment change of corresponding light source 14 in rotation status in adjacent Rotary District 13 can be made, thus the illumination making the region between each light source 14 in each Rotary District 13 can be sent by the light source 14 in adjacent Rotary District 13 is mapped to, to improve the homogeneity of the light being radiated at each region on diffuser plate 11.
In sum, backlight provided by the invention, light source 14 is luminous to the sidewall direction of backlight under rotation status, penetrate from diffuser plate 11 after reflection, in light mixing distance one timing, light is increased by the light path between light source 14 to diffuser plate 11, thus improves the homogeneity being radiated at the light in each region on diffuser plate 11, contribute to the homogeneity improving display frame; Meanwhile, the thickness of backlight can also be reduced.In addition, compared with prior art, in present embodiment, less demanding to the lighting angle of light source 14, can the cost of corresponding reduction backlight.
The present invention also provides a kind of embodiment of display device.In the present embodiment, described display device comprises the backlight that the above-mentioned embodiment of the present invention provides.
The display device that embodiment of the present invention provides, its backlight adopting the above-mentioned embodiment of the present invention to provide, can reduce the thickness of backlight, thus contributes to the thickness reducing display device; And, the homogeneity of backlight exiting surface can also be improved, thus contribute to improving display quality; In addition, can also reduce costs.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (14)
1. a backlight, comprise luminescence unit and diffuser plate, it is characterized in that, described luminescence unit comprises multiple Rotary District, at least one light source is set in each Rotary District, the exiting surface of described light source towards the sidewall of described backlight, the sidewall of described backlight by the light reflection that irradiates thereon to diffuser plate.
2. backlight according to claim 1, is characterized in that, described backlight also comprises multiple driving mechanism, and each driving mechanism is corresponding with a Rotary District, rotates for driving this Rotary District.
3. backlight according to claim 1, is characterized in that, the sidewall of described backlight is coated with reflecting material by light-struck region that light source sends, or is pasted with reflector plate/reflective membrane.
4. backlight according to claim 1, is characterized in that, arranges multiple light source in each Rotary District, and each light source is positioned at outside the light direction of other each light sources on this Rotary District.
5. the backlight according to Claims 1 to 4 any one, is characterized in that, the quantity of the light source in any two adjacent Rotary Districts is not identical.
6. the backlight according to Claims 1 to 4 any one, is characterized in that, the speed that any two adjacent Rotary Districts rotate is different.
7. backlight according to claim 1, is characterized in that, the quantity of described each Rotary District inner light source is identical;
In rotation status, in any two adjacent Rotary Districts corresponding light source light direction between there is the first predetermined deflection angle.
8. backlight according to claim 7, is characterized in that, the time that any two adjacent Rotary Districts start to rotate when described backlight is luminous is different.
9. backlight according to claim 7, is characterized in that, before described backlight luminescence, has the second predetermined deflection angle between the corresponding light source of any two adjacent Rotary Districts.
10. backlight according to claim 8 or claim 9, is characterized in that, the speed that each described Rotary District rotates is identical.
11. backlights according to claim 1, is characterized in that, described each Rotary District is arranged in multirow and/or multiple row.
12. backlights according to claim 2, it is characterized in that, described driving mechanism is motor, described motor is fixed on the backboard of backlight, and described motor and light source lay respectively at the both sides of backboard, the driving shaft of described motor runs through described backboard, is connected at described light source side and a light source or the rotating disk that is provided with multiple light source.
13. backlights according to claim 2, it is characterized in that, described driving mechanism is motor, described motor is fixed on the backboard of backlight, the driving shaft top of described motor is provided with a light source or rotating disk, described rotating disk is provided with multiple light source, and the driving shaft of described motor runs through described backboard.
14. 1 kinds of display device, is characterized in that, comprise the backlight described in claim 1 ~ 13 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695108.1A CN105158978B (en) | 2015-10-22 | 2015-10-22 | Backlight and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695108.1A CN105158978B (en) | 2015-10-22 | 2015-10-22 | Backlight and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105158978A true CN105158978A (en) | 2015-12-16 |
| CN105158978B CN105158978B (en) | 2018-06-29 |
Family
ID=54799879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695108.1A Expired - Fee Related CN105158978B (en) | 2015-10-22 | 2015-10-22 | Backlight and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105158978B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107640A (en) * | 2016-11-23 | 2018-06-01 | 元太科技工业股份有限公司 | Reflective type display apparatus |
| CN109188773A (en) * | 2018-10-30 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of control method of backlight module, display device and backlight module |
| CN110032002A (en) * | 2019-04-12 | 2019-07-19 | 深圳康佳电子科技有限公司 | A kind of rotary backlight module of lamp bar and display device |
| CN112068355A (en) * | 2020-09-24 | 2020-12-11 | 杭州海康威视数字技术股份有限公司 | Display module and display device |
| US11003023B2 (en) * | 2018-05-09 | 2021-05-11 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Dynamic light-mixing method of backlight module |
| CN114594630A (en) * | 2022-03-03 | 2022-06-07 | 厦门天马微电子有限公司 | Backlight module and display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561583B (en) * | 2008-04-14 | 2013-05-15 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device |
| CN201983118U (en) * | 2011-03-22 | 2011-09-21 | 京东方科技集团股份有限公司 | Direct backlight source structure and bottom reflection device |
| CN102606963A (en) * | 2012-04-09 | 2012-07-25 | 创维液晶器件(深圳)有限公司 | Direct type LED liquid crystal backlight module |
| CN102853343B (en) * | 2012-09-14 | 2014-10-22 | 京东方科技集团股份有限公司 | Direct-lit backlight and display |
-
2015
- 2015-10-22 CN CN201510695108.1A patent/CN105158978B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107640A (en) * | 2016-11-23 | 2018-06-01 | 元太科技工业股份有限公司 | Reflective type display apparatus |
| US11003023B2 (en) * | 2018-05-09 | 2021-05-11 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Dynamic light-mixing method of backlight module |
| CN109188773A (en) * | 2018-10-30 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of control method of backlight module, display device and backlight module |
| CN110032002A (en) * | 2019-04-12 | 2019-07-19 | 深圳康佳电子科技有限公司 | A kind of rotary backlight module of lamp bar and display device |
| CN112068355A (en) * | 2020-09-24 | 2020-12-11 | 杭州海康威视数字技术股份有限公司 | Display module and display device |
| CN114594630A (en) * | 2022-03-03 | 2022-06-07 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN114594630B (en) * | 2022-03-03 | 2023-05-02 | 厦门天马微电子有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105158978B (en) | 2018-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105158978A (en) | Backlight and display device | |
| US7717600B2 (en) | Backlight unit and liquid crystal display having the same | |
| EP2503383B1 (en) | Direct type backlight | |
| CN1170191C (en) | Background light and LCD | |
| CN203643721U (en) | Direct type LED backlight module capable of eliminating Mura and liquid crystal product | |
| CN103017038A (en) | Direct type backlight source and display device | |
| CN103703578A (en) | Light emitting device, illuminating device, and display device | |
| CN104040244A (en) | Planar light source unit and liquid crystal display device equipped with same | |
| US11372285B2 (en) | Backlight comprising a plastic frame having a panel receiving portion that is made of a light reflecting material including a transparent material containing light scattering particles, display module and display device | |
| JP2007066634A (en) | Backlight device, and liquid crystal display device | |
| CN203797465U (en) | Backlight module and display device | |
| WO2012012988A1 (en) | Light guide plate and backlight module | |
| JP2009283365A (en) | Illuminating device and display | |
| US9028128B2 (en) | Side-edge backlight module | |
| CN203658711U (en) | Direct type LED backlight module group capable of eliminating lamp shadow and liquid crystal product | |
| CN203744043U (en) | Backlight module and display device | |
| CN102840520A (en) | Sidelight type backlight module and display device | |
| WO2017008326A1 (en) | Double-sided display | |
| KR101186868B1 (en) | Back light and liquid crystal display device having thereof | |
| CN102902089B (en) | A kind of display device | |
| CN100422814C (en) | Backlight module | |
| KR102137968B1 (en) | Light guide panel, backlight unit, display devece and method for manufacturing light guide panel | |
| KR100713891B1 (en) | Backlight unit for LCD | |
| WO2007049373A1 (en) | Light source, and display and television receiver both using the same | |
| CN206497221U (en) | A kind of level enters light type light guide plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211022 |