CN104460112B - Backlight, LED light bar and display device - Google Patents
Backlight, LED light bar and display device Download PDFInfo
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- CN104460112B CN104460112B CN201410782841.2A CN201410782841A CN104460112B CN 104460112 B CN104460112 B CN 104460112B CN 201410782841 A CN201410782841 A CN 201410782841A CN 104460112 B CN104460112 B CN 104460112B
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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
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight, an LED light bar and a display device and aims to solve the problem of shadow of corners of a lighting side of the backlight and improve image uniformity of the backlight so as to enhance image quality of a liquid crystal display. The backlight comprises an LGP (light guide plate) and the LED light bar. At least one end of the LED light bar inclines towards the LGP. The LGP is arranged at a position corresponding to the inclining position of the LED light bar and inclines in the direction the same with the LED light bar.
Description
Technical field
The present invention relates to backlight, display technology field, more particularly to a kind of backlight, light-emitting diode light bar, display dress
Put.
Background technology
Liquid crystal indicator (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous
Advantage, is widely used.Liquid crystal indicator on existing market is most of for backlight liquid crystal indicator, its bag
Include liquid crystal panel and backlight module.Because liquid crystal panel itself does not light, the light source provided by backlight module is needed to come normal
Show image, therefore, backlight module becomes one of key component of liquid crystal indicator.Backlight module is according to light source incidence position
Difference be divided into two kinds of side entrance back module and down straight aphototropism mode set.Down straight aphototropism mode set is by illuminating source, for example
Light emitting diode (Light Emitting Diode, LED) is arranged on liquid crystal panel rear, directly forms area source and is supplied to liquid
Crystal panel.And side entrance back module is that backlight LED lamp bar (Light bar) is arranged at into the backboard at liquid crystal panel side rear
Edge, the light that LED lamp bar sends enters light guide plate from the incidence surface of light guide plate (Light Guide Plate, LGP) side,
Project from light guide plate exiting surface after reflected and diffusion, then liquid crystal panel is supplied to form area source via optical diaphragm group.
Sidelight type backlight module is relatively low due to cost, and accomplishes the advantages such as narrow frame, ultrathin with by liquid crystal indicator, and application is got over
Come more extensive.
In prior art, conventional backlight is LED backlight, as shown in figure 1, LED backlight includes multiple LED lamp bars
10, each LED lamp bar 10 includes the LED 11 after multiple encapsulation, and the brightness of the LED 11 after each encapsulation is identical, adjacent two
The spacing between LED 11 after individual encapsulation is equal, LED lamp bar 10 is fitted with a side of light guide plate 12, and light guide plate 12 enters light
Without gradient, LED backlight both sides, particularly corner portion are the luminous energy superposition blind areas of the LED 11 after encapsulation, it may appear that angle in face
Fall shadow 13.Corner shadow is referred in the light-in backlight of side, because the angle of departure of the LED after encapsulation is restricted, in envelope
In the case that LED after dress is uniformly distributed, LED backlight mid portion is the concentration zones that the LED light after each encapsulation can be superimposed
Domain, the regional luminance is stronger, and LED backlight both sides, particularly corner portion are then the blind areas that the LED light after encapsulation can be superimposed,
Therefore the regional luminance is weaker.Prior art is difficult to solve brightness energy by adjusting the site figure (pattern) of light guide plate
Amount distribution, backlight picture will present the situation of two corner obfuscation.
In sum, the LED backlight of prior art can present the situation of two corner obfuscation, affect the light of backlight
Learn and picture, and then affect the picture quality of whole liquid crystal display.
The content of the invention
A kind of backlight, light-emitting diode light bar, display device are embodiments provided, is sent out to improve backlight
The corner shadow phenomenon in light face, improves the picture homogeneity of backlight, and then improves the picture quality of liquid crystal display.
A kind of backlight provided in an embodiment of the present invention, including light guide plate, light-emitting diode light bar, wherein, it is described luminous
At least one end of diode light bar is obliquely installed, and the incline direction points to the light guide plate by the light-emitting diode light bar, described
Light guide plate is obliquely installed at position corresponding with the light-emitting diode light bar obliquity, the incline direction of the light guide plate
It is consistent with the incline direction of the light-emitting diode light bar.
By backlight provided in an embodiment of the present invention, including light guide plate, light-emitting diode light bar, wherein, light emitting diode
At least one end of lamp bar is obliquely installed, and the incline direction points to light guide plate by the light-emitting diode light bar, light guide plate with it is luminous
Diode light bar obliquity is obliquely installed at corresponding position, the incline direction of light guide plate and the inclination of light-emitting diode light bar
Direction is consistent, and at least one end of light-emitting diode light bar is obliquely installed, and existing while at least one end of light guide plate is obliquely installed
Technology light-emitting diode light bar is compared with the setting of light guide plate, can adjust the angle of LED light-emitting areas, is superimposed backlight luminous energy
The expanded range in region, effectively reduces luminous energy superposition blind area, so as to improve the phenomenon of backlight light-emitting area corner shadow, improves
The picture homogeneity of backlight.
It is preferred that the light-emitting diode light bar is brought into close contact with the light guide plate.
So, when light-emitting diode light bar is brought into close contact with light guide plate, the light that light emitting diode sends will not be in atmosphere
Propagate, can be good at avoiding the loss of light, improve the performance of backlight.
It is preferred that the two ends of the light-emitting diode light bar are symmetrical arranged.
So, the two ends of light-emitting diode light bar are symmetrical arranged can preferably improve backlight light-emitting area corner shadow
Phenomenon, improves the picture homogeneity of backlight.
It is preferred that light guide plate position corresponding with described light-emitting diode light bar one end and the light guide plate with it is described
The corresponding positional symmetry of the light-emitting diode light bar other end.
So, this set of light guide plate can preferably improve the phenomenon of backlight light-emitting area corner shadow, improve the back of the body
The picture homogeneity of light source.
It is preferred that the light emitting diode in the light-emitting diode light bar is uniformly arranged；Or, the light-emitting diode light bar
Including the distance between first area and second area, the light emitting diode in the first area more than in the second area
The distance between light emitting diode, wherein, the first area is located at the one or both ends of the light-emitting diode light bar.
So, the setting of above two light emitting diode, it is more square during the actual fabrication of light-emitting diode light bar
Just, simply.
It is preferred that the distance between light emitting diode in first area l meets：L*cos α=l0, wherein：l0Table
Show the distance between two neighboring light emitting diode in second area, α is represented when first area inclines, the first area is located
Angle between plane and second area place plane.
So, by the above-mentioned setting of light emitting diode, the luminous of light-emitting diode light bar two ends can preferably be ensured
Scope will not diminish.
It is preferred that the base material flexible of the light-emitting diode light bar；Or the base material of the light-emitting diode light bar
Inflexibility.
So, the selection of the base material of light-emitting diode light bar is more flexible, and the cost of the relative material for selecting is relatively low.
It is preferred that the brightness positioned at the light emitting diode of the first area is identical, positioned at the luminous of the second area
The brightness of diode is identical, and the brightness positioned at the light emitting diode of the first area is more than sending out positioned at the second area
The brightness of optical diode.
So, during the brightness of the light emitting diode for being more than second area when the brightness of the light emitting diode of first area, energy
Enough light ray energies preferably increased at light-guide plate corner such that it is able to preferably improve showing for backlight light-emitting area corner shadow
As.
The embodiment of the present invention additionally provides a kind of light-emitting diode light bar, wherein, the light-emitting diode light bar includes the
The distance between one region and second area, the light emitting diode in the first area more than the second area in it is luminous
The distance between diode, wherein, the first area is located at the one or both ends of the light-emitting diode light bar.
By light-emitting diode light bar provided in an embodiment of the present invention, due to the light-emitting diode light bar first area in send out
The distance between optical diode works as light-emitting diode light bar more than the distance between light emitting diode in the second area
When one end inclines, there will not be large effect to the light emitting region at light-emitting diode light bar two ends.
It is preferred that the distance between light emitting diode in first area l meets：L*cos α=l0, wherein：l0Table
Show the distance between two neighboring light emitting diode in second area, α is represented when first area inclines, the first area is located
Angle between plane and second area place plane.
So, by the above-mentioned setting of light emitting diode, the luminous of light-emitting diode light bar two ends can preferably be ensured
Scope will not diminish.
It is preferred that the base material flexible of the light-emitting diode light bar；Or the base material of the light-emitting diode light bar
Inflexibility.
So, the selection of the base material of light-emitting diode light bar is more flexible, and the cost of the relative material for selecting is relatively low.
It is preferred that when the base material inflexibility of the light-emitting diode light bar, the light-emitting diode light bar is at least
One end is obliquely installed, and the incline direction points to light guide plate by the light-emitting diode light bar.
So, when light-emitting diode light bar is obliquely installed, when light guide plate is also obliquely installed, be conducive to by this luminous two
Pole pipe lamp bar is fitted with light guide plate.
It is preferred that the two ends of the light-emitting diode light bar are symmetrical arranged.
So, the two ends of light-emitting diode light bar are symmetricly set on convenient during actual fabrication, simple.
It is preferred that the brightness positioned at the light emitting diode of the first area is identical, positioned at the luminous of the second area
The brightness of diode is identical, and the brightness positioned at the light emitting diode of the first area is more than sending out positioned at the second area
The brightness of optical diode.
So, during the brightness of the light emitting diode for being more than second area when the brightness of the light emitting diode of first area, energy
Enough light ray energies for preferably increasing light-emitting diode light bar two ends.
The embodiment of the present invention additionally provides a kind of display device, including above-mentioned backlight.
By display device provided in an embodiment of the present invention, because the display device includes above-mentioned backlight, therefore the display
The picture quality of device can be greatly improved.
Description of the drawings
Fig. 1 is the structural representation of the backlight of prior art；
Fig. 2 is a kind of structural representation of backlight provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of light guide plate provided in an embodiment of the present invention；
Fig. 4 (a) and Fig. 4 (b) are respectively a kind of structural representation of light-emitting diode light bar provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another kind of light-emitting diode light bar provided in an embodiment of the present invention；
Fig. 6 is the structural representation of another light-emitting diode light bar provided in an embodiment of the present invention.
Specific embodiment
A kind of backlight, light-emitting diode light bar, display device are embodiments provided, is sent out to improve backlight
The corner shadow phenomenon in light face, improves the picture homogeneity of backlight, and then improves the picture quality of liquid crystal display.
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than the enforcement of whole
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
As shown in Fig. 2 the specific embodiment of the invention provides a kind of backlight, including light guide plate 20, LED light lamp
Bar 21, at least one end of light-emitting diode light bar 21 is obliquely installed, and the incline direction is pointed to by the light-emitting diode light bar 21 and led
Tabula rasa 20, light guide plate 20 is obliquely installed at position corresponding with the obliquity of light-emitting diode light bar 21, and light guide plate 20 inclines
Tilted direction is consistent with the incline direction of light-emitting diode light bar 21, it is preferable that LED light lamp in the specific embodiment of the invention
Bar 21 is brought into close contact with light guide plate 20, and the light guide plate 20 in the specific embodiment of the invention is corresponding with light-emitting diode light bar one end
Position is arranged with light guide plate positional symmetry corresponding with the light-emitting diode light bar other end, as shown in figure 3, the two ends of light guide plate 20
201 are obliquely installed, and there is an angle with horizontal plane, in actual design, in order to preferably reduce corner shadow, the angle are set
It is set to less than 30 degree.Specifically, the specific embodiment of the invention can be ground at least one end of light guide plate 20 by way of grinding
Wear into light guide plate as shown in Figure 3.
As shown in Fig. 4 (a), the light emitting diode in light-emitting diode light bar 21 in the specific embodiment of the invention uniformly sets
Put, light-emitting diode light bar 21 includes the light emitting diode 210 after multiple encapsulation, between two neighboring light emitting diode 210
Distance be it is set in advance apart from l0.Certainly, it is luminous in the light-emitting diode light bar 21 in the specific embodiment of the invention
Diode uneven can also be arranged, and shown in such as Fig. 4 (b), the light-emitting diode light bar 21 in the specific embodiment of the invention includes
The distance between first area 211 and second area 212, the light emitting diode 210 in first area 211 l is more than second area
The distance between light emitting diode 210 in 212 l0, wherein, first area 211 be located at light-emitting diode light bar 21 one end or
Two ends, illustrate only situation of the first area 211 positioned at the two ends of light-emitting diode light bar 21 in figure.
The base material flexible of the light-emitting diode light bar 21 in the specific embodiment of the invention；Or light-emitting diode light bar
21 base material inflexibility.When the base material flexible of light-emitting diode light bar 21, when by the light-emitting diode light bar 21
When fitting with the light guide plate 20 in the specific embodiment of the invention, at the obliquity of light guide plate 20 can by by this luminous two
Pole pipe lamp bar 21 enters the mode of line tilt piece and the light-emitting diode light bar 21 is fitted with light guide plate 20, when by light emitting diode
Lamp bar 21 is entered after line tilt piece, and the dispersion angle of the light emitting diode 210 at the obliquity of light-emitting diode light bar 21 also can
There is certain change, so can preferably adjust the lighting angle of light emitting diode 210, can be good at reducing backlight
Corner shadow.And when the base material inflexibility of light-emitting diode light bar 21, to by the specific embodiment of the invention send out
Optical diode lamp bar 21 is fitted with the light guide plate 20 in the specific embodiment of the invention, then needed light-emitting diode light bar 21 extremely
Few one end is obliquely installed in advance so that the angle of inclination of the light-emitting diode light bar 21 is equal with the angle of inclination of light guide plate 20,
Referring specifically to shown in Fig. 5, it is preferable that be symmetrical arranged at the two ends of light-emitting diode light bar 21 in the specific embodiment of the invention.
As shown in figure 5, the distance between light emitting diode 210 in the specific embodiment of the invention in first area 211 l is full
Foot：L*cos α=l0, wherein：l0The distance between two neighboring light emitting diode in second area 212 is represented, wherein, α is the
Angle between the place plane of one region 211 and the place plane of second area 212.Preferably, in the specific embodiment of the invention
The number of the light emitting diode in one region 211 be one, when light emitting diode number be one when, the light emitting diode with
The distance between its adjacent light emitting diode is l0。
Preferably, the brightness of the light emitting diode 210 in the specific embodiment of the invention positioned at first area 211 is identical, position
It is identical in the brightness of the light emitting diode 210 of second area 212, and the brightness of the light emitting diode 210 positioned at first area 211
More than the brightness of the light emitting diode 210 positioned at second area 212.Specifically, light emitting diode in the specific embodiment of the invention
Brightness ratio in lamp bar 21 positioned at the light emitting diode 210 of first area 211 is located at the light emitting diode 210 of second area 212
The high 4%-8% of brightness, at this moment the light ray energy at the end positions of light-emitting diode light bar 21 is compared with light-emitting diode light bar 21
Light ray energy at other positions is strengthened.
As shown in Fig. 2 the lighting angle of the light emitting diode 210 after encapsulation is 120 degree, that is, the light emitting diode after encapsulating
Angle between 210 light 23 for sending is 120 degree.It is corresponding at the obliquity of light guide plate 20 in the specific embodiment of the invention
Light emitting diode 210 after encapsulation incides the incident angle in light guide plate 20 and becomes big, compared with prior art, can be effective
Reduce the region of corner shadow 22.Light emitting diode 210 at the obliquity of light guide plate 20 after corresponding encapsulation is from highlighted
During the LED of degree, the light ray energy that the light emitting diode 210 after the encapsulation of the two ends of light-emitting diode light bar 21 sends is strengthened, so that
The light ray energy of corner positions is further strengthened, compared with prior art, can significantly more efficient diminution corner it is dark
The region of shadow 22.The backlight that i.e. specific embodiment of the invention is provided, by increasing the corner light ray energy of light guide plate 20, adjustment is sent out
The angle of the light-emitting area of optical diode 210, can effectively eliminate the corner shadow phenomenon of backlight picture.
The specific embodiment of the invention additionally provides a kind of light-emitting diode light bar 21, such as shown in Fig. 4 (b), light emitting diode
Lamp bar 21 includes that the distance between first area 211 and second area 212, the light emitting diode 210 in first area 211 l is big
The distance between light emitting diode 210 in second area 212 l0, wherein, first area 211 is located at light-emitting diode light bar
21 one or both ends.
Preferably, as shown in fig. 6, the specific embodiment of the invention provide light-emitting diode light bar 21, in first area 211
The distance between light emitting diode l meet：L*cos α=l0, wherein：l0Represent two neighboring luminous two in second area 212
The distance between pole pipe, α represented when first area 211 inclines, the place plane of first area 211 and the institute of second area 212
Angle between plane.The base material flexible of the light-emitting diode light bar 21 in the specific embodiment of the invention；Or it is luminous
The base material inflexibility of diode light bar 21.When the base material inflexibility of light-emitting diode light bar 21, light-emitting diode light bar
21 at least one end is obliquely installed, and the incline direction points to light guide plate by the light-emitting diode light bar, it is preferable that the present invention is concrete
The two ends of the light-emitting diode light bar 21 in embodiment are symmetrical arranged, as shown in Figure 6.
In sum, in the specific design of backlight, light-emitting diode light bar will with the degree of optimization of light guide plate collocation
Brightness and the homogeneity of backlight are directly affected, and then affects the picture quality of whole liquid crystal display.The present invention is embodied as
In example, at least one end of light-emitting diode light bar is obliquely installed, the incline direction is pointed to guide-lighting by the light-emitting diode light bar
Plate, light guide plate is obliquely installed at position corresponding with light-emitting diode light bar obliquity, the incline direction of light guide plate with send out
The incline direction of optical diode lamp bar is consistent, by the way of this new light-emitting diode light bar and light guide plate collocation, can
So that the expanded range of backlight luminous energy overlap-add region, effectively reduces luminous energy superposition blind area, so as to improve backlight light-emitting area
The phenomenon of corner shadow, improves the picture homogeneity of backlight.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (12)
1. a kind of backlight, including light guide plate, light-emitting diode light bar, it is characterised in that the light-emitting diode light bar is extremely
Few one end is obliquely installed, and the incline direction points to the light guide plate by the light-emitting diode light bar, the light guide plate with it is described
Light-emitting diode light bar obliquity is obliquely installed at corresponding position, the incline direction of the light guide plate and the light-emitting diodes
The incline direction of spot bar is consistent；
The light-emitting diode light bar includes first area and second area, between the light emitting diode in the first area
Distance is more than the distance between light emitting diode in the second area, wherein, the first area is located at described luminous two
The one or both ends of pole pipe lamp bar；
The distance between light emitting diode in first area l meets：L*cos α=l0, wherein：l0In representing second area
The distance between two neighboring light emitting diode, α represented when first area inclines, the first area place plane and the secondth area
Angle between the plane of domain place.
2. backlight according to claim 1, it is characterised in that the light-emitting diode light bar is tight with the light guide plate
Laminating.
3. backlight according to claim 1, it is characterised in that the two ends of the light-emitting diode light bar are symmetrical arranged.
4. backlight according to claim 1, it is characterised in that the light guide plate and described light-emitting diode light bar one end
Corresponding position and light guide plate positional symmetry corresponding with the light-emitting diode light bar other end.
5. backlight according to claim 1, it is characterised in that the base material flexibility bendable of the light-emitting diode light bar
It is bent；Or the base material inflexibility of the light-emitting diode light bar.
6. backlight according to claim 1, it is characterised in that positioned at the brightness of the light emitting diode of the first area
Identical, the brightness positioned at the light emitting diode of the second area is identical, and positioned at the light emitting diode of the first area
Brightness of the brightness more than the light emitting diode positioned at the second area.
7. a kind of light-emitting diode light bar, it is characterised in that the light-emitting diode light bar includes first area and second area,
The distance between light emitting diode in the first area more than the distance between light emitting diode in the second area,
Wherein, the first area is located at the one or both ends of the light-emitting diode light bar；
The distance between light emitting diode in first area l meets：L*cos α=l0, wherein：l0In representing second area
The distance between two neighboring light emitting diode, α represented when first area inclines, the first area place plane and the secondth area
Angle between the plane of domain place.
8. light-emitting diode light bar according to claim 7, it is characterised in that the base material of the light-emitting diode light bar is soft
Property is flexible；Or the base material inflexibility of the light-emitting diode light bar.
9. light-emitting diode light bar according to claim 8, it is characterised in that when the base material of the light-emitting diode light bar
During inflexibility, at least one end of the light-emitting diode light bar is obliquely installed, and the incline direction is by the light-emitting diode light bar
Point to light guide plate.
10. light-emitting diode light bar according to claim 9, it is characterised in that the two ends of the light-emitting diode light bar
It is symmetrical arranged.
11. light-emitting diode light bars according to claim 7, it is characterised in that positioned at luminous the two of the first area
The brightness of pole pipe is identical, and the brightness positioned at the light emitting diode of the second area is identical, and sending out positioned at the first area
Brightness of the brightness of optical diode more than the light emitting diode positioned at the second area.
12. a kind of display devices, it is characterised in that described device includes the backlight described in the arbitrary claim of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782841.2A CN104460112B (en) | 2014-12-15 | 2014-12-15 | Backlight, LED light bar and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782841.2A CN104460112B (en) | 2014-12-15 | 2014-12-15 | Backlight, LED light bar and display device |
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| Publication Number | Publication Date |
|---|---|
| CN104460112A CN104460112A (en) | 2015-03-25 |
| CN104460112B true CN104460112B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410782841.2A Active CN104460112B (en) | 2014-12-15 | 2014-12-15 | Backlight, LED light bar and display device |
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| KR102626224B1 (en) * | 2016-08-31 | 2024-01-17 | 삼성디스플레이 주식회사 | Light emitting module and display device having the same |
| CN107229093B (en) * | 2017-06-30 | 2020-05-22 | 厦门天马微电子有限公司 | Side light type backlight module, light source and display panel thereof |
| CN107167965A (en) * | 2017-07-04 | 2017-09-15 | 京东方科技集团股份有限公司 | A kind of reflectance coating and backlight module |
| CN109491146B (en) * | 2019-01-15 | 2022-04-26 | 高创(苏州)电子有限公司 | Light-emitting module and manufacturing method thereof, direct type backlight module and display device |
| CN111972919B (en) * | 2019-05-24 | 2022-12-20 | 科勒(中国)投资有限公司 | Intelligent mirror cabinet |
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| JP3538220B2 (en) * | 1994-05-25 | 2004-06-14 | 株式会社エンプラス | Corner light supply type surface light source device |
| JP3654410B2 (en) * | 1997-08-11 | 2005-06-02 | 株式会社エンプラス | Sidelight type surface light source device, liquid crystal display device, and light guide plate |
| JP2001184923A (en) * | 1999-12-24 | 2001-07-06 | Casio Comput Co Ltd | Light source apparatus |
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| CN101706627B (en) * | 2009-11-13 | 2011-08-31 | 深圳创维－Rgb电子有限公司 | Liquid crystal display (LCD) with uniform brightness and method for removing LCD dark spaces |
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