CN105158978B - Backlight and display device - Google Patents
Backlight and display device Download PDFInfo
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- CN105158978B CN105158978B CN201510695108.1A CN201510695108A CN105158978B CN 105158978 B CN105158978 B CN 105158978B CN 201510695108 A CN201510695108 A CN 201510695108A CN 105158978 B CN105158978 B CN 105158978B
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- Prior art keywords
- backlight
- light source
- light
- rotary district
- motor
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- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of backlight and display device.The backlight includes luminescence unit and diffuser plate, the luminescence unit includes multiple Rotary Districts, at least one light source of setting in each Rotary District, towards the side wall of the backlight, the light of irradiation on it is reflected towards diffuser plate by the side wall of the backlight for the light-emitting surface of the light source.Light source in above-mentioned backlight shines under rotation status to the sidewall direction of backlight, it is projected after reflection from diffuser plate, in one timing of light mixing distance, light is made to be increased by light source to the light path between diffuser plate, so as to improve the homogeneity for being radiated at the light in each region on diffuser plate, the homogeneity of display picture is helped to improve；At the same time it can also reduce the thickness of backlight.In addition, compared with prior art, in the present invention, to the of less demanding of the light emitting angle of light source, the cost of backlight can be accordingly reduced.
Description
Technical field
The present invention relates to technical field of liquid crystal display, and in particular, to a kind of backlight and display device.
Background technology
Backlight is that liquid crystal display device realizes the indispensable component part of display.Existing backlight is broadly 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, the backlight includes diffuser plate 11 and light source
14 (generally LED), the diffuser plate 11 and light source 14, which are mounted on the backboard 12 of backlight, (illustrates only backboard 12 in Fig. 1
Side wall).In backlight shown in Fig. 1, for the light direction of light source 14 towards 11 direction of diffuser plate, the light passes through diffuser plate
It is projected after 11 from the light-emitting surface of backlight.
In above-mentioned direct-light-type backlight, for the light that makes to be radiated on diffuser plate 11 as much as possible uniformly (i.e.：Make diffusion
Brightness on plate 11 everywhere is as consistent as possible), on the one hand, the quantity of light source 14 can be increased, improve the distribution density of light source 14；
But the generation of amount of heat can be led in this way, when that can not radiate in time, heat can lead to 11 grade parts damages of diffuser plate.It is another
Aspect can increase the light emitting angle of light source 14, and the light that each light source 14 is sent out is made to realize largely mixed light；For example, it adopts
By the use of the LED of light emitting angle bigger as light source 14, lens are set on LED to increase in a manner of its light emitting angle etc.；But such nothing
The cost of backlight can be improved by doubting.Further, it is also possible to increase the distance between light source 14 and diffuser plate 11, send out each light source 14
Light realize largely mixed light；The uniformity for the light being radiated on diffuser plate 11, but meeting in this way can also be increased in this way
So that the thickness of backlight is larger.
Invention content
The present invention is directed at least solve one of technical problem in the prior art, it is proposed that a kind of backlight and display
Device can reduce the thickness of backlight, and improve the uniformity for being radiated at the light on diffuser plate, while can also reduce
Cost.
Purpose to realize the present invention and a kind of backlight is provided, including luminescence unit and diffuser plate, the luminous list
Member includes multiple Rotary Districts, sets at least one light source in each Rotary District, and the light-emitting surface of the light source is towards the backlight
Side wall, the light irradiated on it is reflected towards diffuser plate by the side wall of the backlight.
Wherein, the backlight further includes multiple driving mechanisms, and each driving mechanism is corresponding with a Rotary District, for driving
Move Rotary District rotation.
Wherein, reflecting material or patch are had by the region coating that the light that light source is sent out irradiates on the side wall of the backlight
With reflector plate/reflective membrane.
Wherein, multiple light sources are set in each Rotary District, and each light source is located at other each light sources on the Rotary District
Except light direction.
Wherein, the quantity of the light source in arbitrary two adjacent Rotary Districts differs.
Wherein, the speed of arbitrary two adjacent Rotary District rotations is different.
Wherein, the quantity of each Rotary District inner light source is identical；It is corresponding in arbitrary two adjacent Rotary District in rotation status
There is the first predetermined deflection angle between the light direction of light source.
Wherein, arbitrary two adjacent Rotary Districts start the time difference of rotation when the backlight shines.
Wherein, second makes a reservation for partially before the backlight shines, between the corresponding light source of arbitrary two adjacent Rotary District
Gyration.
Wherein, the speed of each Rotary District rotation is identical.
Wherein, each Rotary District is arranged in multirow and/or multiple row.
Wherein, the driving mechanism is motor, and the motor is fixed on the backboard of backlight, and the motor and light source
It is located at the both sides of backboard respectively, the drive shaft of the motor is through the backboard, in the light source side and a light source
Or the turntable connection of multiple light sources is installed.
Wherein, the driving mechanism is motor, and the motor is fixed on the backboard of backlight, the drive shaft of the motor
Top installation is provided with multiple light sources, the drive shaft of the motor is through described there are one light source or turntable on the turntable
Backboard.
As another technical solution, the present invention also provides a kind of display device, including above-mentioned backlight.
The invention has the advantages that：
Backlight provided by the invention, light source shine under rotation status to the sidewall direction of backlight, after reflection
It is projected from diffuser plate, in one timing of light mixing distance, light is made to be increased by light source to the light path between diffuser plate, so as to improve irradiation
The homogeneity of the light in each region on diffuser plate helps to improve the homogeneity of display picture；At the same time it can also reduce backlight
The thickness in source.In addition, compared with prior art, in the present invention, to the of less demanding of the light emitting angle of light source, can accordingly reduce
The cost of backlight.
Display device provided by the invention uses above-mentioned backlight provided by the invention, can reduce the thickness of backlight
Degree, so as to help to reduce the thickness of display device；And the homogeneity of backlight light-emitting surface can also be improved, so as to help
In raising display quality；Further, it is also possible to reduce cost.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.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 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 second of structure of driving mechanism in backlight described in Fig. 2；
Fig. 6 is the schematic diagram of backlight in 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 second of structure of driving mechanism in backlight shown in Fig. 6；
Fig. 9 is a kind of schematic diagram of set-up mode of Rotary District light source in backlight shown in Fig. 6；
Figure 10 is the schematic diagram of backlight in third 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.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of multiple embodiments of backlight.Fig. 2 is the schematic diagram of backlight in first embodiment；
Fig. 3 is the schematic diagram of the backboard of backlight shown in Fig. 2.As shown in Figures 2 and 3, the backlight includes luminescence unit 10 and expands
Fall apart 11, in addition to this, the backlight further includes backboard 12 (side wall that backboard 12 is illustrated only in Fig. 2), the luminous list
Member 10 and diffuser plate 11 are mounted on backboard 12.The luminescence unit 10 includes multiple Rotary Districts 13, setting in each Rotary District 13
Put a light source 14, the light-emitting surface of the light source 14 is towards the side wall (i.e. the side wall of backboard 12) of the backlight, the backlight
The light irradiated on it is reflected towards diffuser plate 11 by the side wall in source.
When backlight works, each Rotary District 13 keeps rotation status；The light source 14 set in each Rotary District 13 is sent out
Light, and in 13 rotary course of Rotary District, is constantly radiated at each region of backlight surrounding side wall, and the side of backlight
The light is then reflexed to the different zones on diffuser plate 11 by wall, which is lighted.Light source 14 in multiple Rotary Districts 13 is common
Same-action can light each region of diffuser plate 11, and the backlight is enable to be used as an area source.
Distance is light mixing distance between light source 14 and diffuser plate 11, and in the prior art, which is light in light
Source 14 is to the light path between diffuser plate 11, it will be understood that the light mixing distance is small, then the light that multiple light sources 14 are sent out cannot be mixed fully
It closes, makes that the homogeneity for being radiated at the brightness of the light of different zones on diffuser plate 11 is poor, and the light mixing distance is big, multiple light sources 14 are sent out
The light gone out can be sufficiently mixed, and make the brightness for being radiated at the light of different zones on diffuser plate 11 higher, but the thickness of backlight becomes
Greatly.And in present embodiment, in one timing of light mixing distance, light is increased by light source 14 to the light path between diffuser plate 11 is opposite
Add, the light that such multiple light sources 14 are sent out can be mixed more fully, so as to make to expose to the light in each region on diffuser plate 11
It is more uniform, the homogeneity of 11 brightness throughout of diffuser plate is promoted, but also the thickness of backlight can be reduced.Meanwhile with it is existing
Technology is compared, and in present embodiment, to the of less demanding of the light emitting angle of light source 14, can accordingly reduce the cost of backlight.
The backlight further includes multiple driving mechanisms 15, and each driving mechanism 15 is corresponding with a Rotary District 13, is used for
The Rotary District 13 is driven to rotate.Specifically, the driving mechanism 15 is specifically as follows motor, and the motor is fixed on backlight
On backboard 12 (being specially on the bottom surface of backboard 12).Specifically, as shown in figure 4, between the light source 14 and the drive shaft of motor
It is connected by modes such as screws；Alternatively, as shown in figure 5, the light source 14 is directly installed in the drive shaft of motor.It is carried on the back in assembling
During light source, the drive shaft of motor is passed through into the hole on backboard 12, the motor and light source 14 is made to be located at the both sides of backboard 12 respectively,
Then, motor is fixed on backboard 12 by screw or buckle.So as to which when backlight works, the motor directly drives
Light source 14 connected to it rotates.
Preferably, on the side wall of the backlight by the region coating that light that light source 14 is sent out irradiates have reflecting material or
Person is pasted with reflector plate/reflective membrane, so that the side wall of the backlight has higher reflectivity, so as to which more light are anti-
It is incident upon on diffuser plate 11.Specifically, the reflecting material can be the materials such as silver, chromium.
Each Rotary District 13 can be arranged in multirow and/or multiple row, as shown in Figure 3.Certainly, each Rotary District 13 is gone back
It can arrange in other ways, specifically, the arrangement mode of each Rotary District 13 is different to be finally irradiated on diffuser plate 11
Subject to the intensity of the light in region is consistent, as long as meeting the requirement, each Rotary District 13 can arrange in any way.
Fig. 6 is the schematic diagram of backlight in second embodiment.As shown in fig. 6, present embodiment is implemented with above-mentioned first
Difference lies in the quantity of the light source 14 in each Rotary District 13 is multiple to mode, and the multiple light source 14 is mounted on one and turns
On disk.Specifically, in present embodiment, the speed that each Rotary District 13 rotates is identical.
In the present embodiment, specifically, the turntable can be by the modes such as screw and the driving axis connection of motor, such as
Shown in Fig. 7；For back light source structure shown in Fig. 7, in assembling, first, the drive shaft of motor is passed through into the hole on backboard 12, is led to
It crosses screw or motor is fixed on backboard 12 by buckle, then connect the drive shaft of motor and the turntable positioned at 12 opposite side of backboard
It connects；It is appreciated that the hole on such backboard 12 can set it is smaller.In addition to embodiment illustrated in fig. 7, in the present embodiment,
The turntable can also be directly anchored in the drive shaft of motor, as shown in Figure 8；For back light source structure shown in Fig. 8, assembling
When, the drive shaft of motor and turntable are passed through to the hole on backboard 12, motor and turntable is made to be located at the both sides of turntable 12 respectively, and
Afterwards, motor is fixed on backboard 12 by screw or buckle.Compared with structure shown in Fig. 7, in the present embodiment, on backboard 12
Hole needs to set larger.
In the present embodiment, the quantity of the light source 14 set in each Rotary District 13 is multiple, such as shown in Fig. 6
4.So as to which compared with above-mentioned first embodiment, the quantity of the light source set in backlight increases, and can improve and be radiated at expansion
The homogeneity of light on falling apart and brightness.
In the present embodiment, the quantity of each 13 inner light source 14 of Rotary District is identical, and the light source 14 1 in each Rotary District 13
One corresponds to.For example, in figure 6, Rotary District 13a, 13b, 13c, 13d ... four light sources 14 of interior each setting, wherein, each Rotary District
In light source 14-1 direction it is identical, corresponding light source each other, similarly, the light source 14-2 in each Rotary District is corresponded to each other
Light source, light source 14-3 in each Rotary District corresponding light source each other, light source 14-4 in each Rotary District corresponding light source each other.Specifically
Ground, the speed that each Rotary District 13 rotates can be identical；When being in rotation status in Rotary District 13 in this way, each corresponding light source 14
Between relative position it is constant.
Preferably, in rotation status, have between the light direction of corresponding light source 14 in arbitrary two adjacent Rotary District 13
First predetermined deflection angle；That is, in rotation status, the light direction of the corresponding light source 14 in adjacent Rotary District 13 is not
Together, the region between the multiple light sources 14 of each Rotary District 13 can be made to be irradiated to by the light source 14 in adjacent Rotary District in this way,
So as to further improve the homogeneity for the light being irradiated on diffuser plate 11.Specifically, the light source 14 in the Rotary District 13 can
To be arranged to：Have second to make a reservation for before the backlight shines, between the corresponding light source 14 of arbitrary two adjacent Rotary District 13
Deflection angle, as shown in Rotary District 13a~13d in Fig. 9；So when rotated, the corresponding light source 14 in adjacent Rotary District 13
Deviation can be generated in rotation status.Specifically, Rotary District 13 is gradually rotated by static, increases rotating speed to stable contorted
State, 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 not
When being same as the rotation status that Rotary District 13 is in stable, the deviation between the two, therefore, and when not rotated in Rotary District, phase
Deviation between the corresponding light source 14 of adjacent Rotary District 13 is the second predetermined deflection angle, and in rotation status, adjacent Rotary District
Deviation between 13 corresponding light source 14 is the first predetermined deflection angle.
In addition to the implementation, in the present embodiment, before the backlight shines, the corresponding light source of each Rotary District 13
14 direction can with identical, and by make arbitrary two adjacent Rotary Districts 13 the backlight shine when start rotation time
Difference, realize the corresponding light source 14 of the Rotary District 13 of arbitrary neighborhood has the first predetermined deflection angle in rotation status.
Specifically, in each Rotary District 13, each light source 14 is located at the light extraction of other each light sources 14 on the Rotary District 13
Except direction；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 third embodiment.As shown in Figure 10, present embodiment and the above-mentioned second reality
Applying mode, difference lies in the quantity of the light source in arbitrary two adjacent Rotary District 13 differs；That is, present embodiment
In, in arbitrary neighborhood Rotary District 13, each light source 14 is not exclusively corresponding.It can ensure in rotation status in this way, adjacent Rotary District
The light direction of each light source 14 in 13 will not be completely the same, so as to make the region between each light source 14 in each Rotary District 13
It can be mapped to by the illumination that the light source 14 in adjacent Rotary District 13 is sent out, the light in each region on diffuser plate 11 is radiated to improve
Homogeneity.Specifically, in present embodiment, the speed that each Rotary District 13 rotates is identical.
Figure 11 is the schematic diagram of backlight in the 4th embodiment.As shown in figure 11, present embodiment with above-mentioned second, the
Difference lies in the speed that arbitrary two adjacent Rotary District 13 rotates is different for three embodiments；For example, for Rotary District 13a, turn
Speed is r1；For Rotary District 13b, rotating speed r2；For Rotary District 13c, rotating speed r3；For Rotary District 13d, rotating speed
For 13d.When quantity of light source in this way in adjacent Rotary District 13 is identical, the corresponding light source 14 in adjacent Rotary District 13 can be made to exist
Relative position moment variation in rotation status, so as to make the region between each light source 14 in each Rotary District 13 can be adjacent
The illumination that light source 14 in Rotary District 13 is sent out is mapped to, to improve the homogeneity for being radiated at the light in each region on diffuser plate 11.
In conclusion backlight provided by the invention, light source 14 shines under rotation status to the sidewall direction of backlight,
It is projected after reflection from diffuser plate 11, in one timing of light mixing distance, light is made to be increased by light source 14 to the light path between diffuser plate 11
Add, so as to improve the homogeneity for being radiated at the light in each region on diffuser plate 11, help to improve the homogeneity of display picture；Together
When, the thickness of backlight can also be reduced.In addition, compared with prior art, in present embodiment, to the light emitting angle of light source 14
It is of less demanding, can accordingly reduce the cost of backlight.
The present invention also provides a kind of embodiments of display device.In the present embodiment, the display device includes this
The backlight that invention the above embodiment provides.
The display device that embodiment of the present invention provides, the backlight that the above embodiment of the present invention is used to provide, can
To reduce the thickness of backlight, so as to help to reduce the thickness of display device；And backlight light-emitting surface can also be improved
Homogeneity, so as to help to improve display quality；Further, it is also possible to reduce cost.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (14)
1. a kind of backlight, including luminescence unit and diffuser plate, which is characterized in that the luminescence unit includes multiple Rotary Districts,
At least one light source is set in each Rotary District, and the light-emitting surface of the light source is towards the side wall of the backlight, each rotation
Area can drive the light source to rotate when the backlight works, so that the light that the light source is sent out is radiated at the backlight
On the side wall in source, the light irradiated on it is reflected towards diffuser plate by the side wall of the backlight.
2. backlight according to claim 1, which is characterized in that the backlight further includes multiple driving mechanisms, each
Driving mechanism is corresponding with a Rotary District, for the Rotary District to be driven to rotate.
3. backlight according to claim 1, which is characterized in that the illumination sent out on the side wall of the backlight by light source
The region coating penetrated has reflecting material or is pasted with reflector plate/reflective membrane.
4. backlight according to claim 1, which is characterized in that multiple light sources, and each light are set in each Rotary District
Source is located at except the light direction of other each light sources on the Rotary District.
5. according to the backlight described in Claims 1 to 4 any one, which is characterized in that the light in arbitrary two adjacent Rotary District
The quantity in source differs.
6. according to the backlight described in Claims 1 to 4 any one, which is characterized in that arbitrary two adjacent Rotary District rotation
Speed is different.
7. backlight according to claim 1, which is characterized in that the quantity of each Rotary District inner light source is identical；
In rotation status, there is the first predetermined deflection angle in arbitrary two adjacent Rotary District between the light direction of corresponding light source
Degree.
8. backlight according to claim 7, which is characterized in that arbitrary two adjacent Rotary District is when the backlight shines
The time for starting rotation is different.
9. backlight according to claim 7, which is characterized in that before the backlight shines, arbitrary two adjacent rotation
There is the second predetermined deflection angle between the corresponding light source in area.
10. backlight according to claim 8 or claim 9, which is characterized in that the speed of each Rotary District rotation is identical.
11. backlight according to claim 1, which is characterized in that each Rotary District is arranged in multirow and/or multiple row.
12. backlight according to claim 2, which is characterized in that the driving mechanism is motor, and the motor is fixed on
On the backboard of backlight, and the motor and light source are located at the both sides of backboard respectively, and the drive shaft of the motor runs through the back of the body
Plate is connect in the light source side and a light source or the turntable for being equipped with multiple light sources.
13. backlight according to claim 2, which is characterized in that the driving mechanism is motor, and the motor is fixed on
On the backboard of backlight, the installation of the drive shaft top of the motor is provided with more on the turntable there are one light source or turntable
A light source, the drive shaft of the motor run through the backboard.
14. a kind of display device, which is characterized in that including 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 CN105158978A (en) | 2015-12-16 |
| CN105158978B true 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 |
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| Country | Link |
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| CN (1) | CN105158978B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI648562B (en) * | 2016-11-23 | 2019-01-21 | 元太科技工業股份有限公司 | Reflective display device |
| CN108663859A (en) * | 2018-05-09 | 2018-10-16 | 惠州市华星光电技术有限公司 | backlight module dynamic light mixing method |
| CN109188773B (en) * | 2018-10-30 | 2022-04-19 | 京东方科技集团股份有限公司 | Backlight module, display device and control method of backlight module |
| CN110032002B (en) * | 2019-04-12 | 2022-03-01 | 深圳康佳电子科技有限公司 | Lamp strip rotation type backlight unit 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 |
| CN114594630B (en) * | 2022-03-03 | 2023-05-02 | 厦门天马微电子有限公司 | Backlight module and display device |
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| CN101561583A (en) * | 2008-04-14 | 2009-10-21 | 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 |
| CN102853343A (en) * | 2012-09-14 | 2013-01-02 | 京东方科技集团股份有限公司 | Direct-lit backlight and display |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101561583A (en) * | 2008-04-14 | 2009-10-21 | 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 |
| CN102853343A (en) * | 2012-09-14 | 2013-01-02 | 京东方科技集团股份有限公司 | Direct-lit backlight and display |
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