CN104460109B - Display device - Google Patents
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- CN104460109B CN104460109B CN201410708562.1A CN201410708562A CN104460109B CN 104460109 B CN104460109 B CN 104460109B CN 201410708562 A CN201410708562 A CN 201410708562A CN 104460109 B CN104460109 B CN 104460109B
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- light
- diffusion
- guide plate
- points
- particle diameter
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- 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
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The present invention provides a kind of display device, and comprising display panel and backlight module, wherein display panel is arranged on backlight module.Display panel has effective display surface and the peripheral surface positioned at effective display surface periphery.Backlight module includes light guide plate, light switching film and side entering type light source.Light guide plate includes a plurality of first diffusions and a plurality of second diffusion points, wherein the first effective display surface setting of diffusion point correspondence, the peripheral surface on the second effective display surface periphery of diffusion point correspondence is set, and the second particle diameter for spreading point is less than the particle diameter of the first diffusion point.Light switching film is arranged on light guide plate.Side entering type light source is arranged at the side of light guide plate, to send the first coloured light into light guide plate, wherein, the side has the surface of the plural number first diffusion point adjacent with the light guide plate.First coloured light is uniformly directed to light switching film by the first diffusion point with the second diffusion o'clock.First coloured light is converted to the second coloured light by light switching film.
Description
Technical field
The present invention is espespecially a kind of to be prevented effectively from the display device for producing light leakage phenomena on a kind of display device.
Background technology
The light source of backlight module of liquid crystal display device is presently used for Cold Cathode Fluorescent fluorescent tube (Cold Cathode
Fluorescent Lamp, CCFL) and light-emittingdiode (Light Emitting Diode, LED) based on.Due to LED's
Volume and power consumption ratio CCFL are small, can accomplish to be thinned product design, color saturation preferably, and without mercury pollution, thus LED by
Gradually replace CCFL.In addition, having manufacturer at present develops quantum dot enhanced film (Quantum Dot Enhancement
Film, QDEF), for coordinating with blue-ray LED, to strengthen light source color rendering and wide colour gamut efficiency.Quantum dot enhanced film is tool
There are two kinds of different size of phosphor particles, feux rouges and green glow produced to excite by blue light illumination two kinds of phosphor particles,
Along with some blue light can penetrate quantum dot enhanced film, to make feux rouges, green glow and blue light in quantum dot enhanced film opposite side
Blend together white light.
In general, the edge of quantum dot enhanced film usually not phosphor particles or only contain less phosphor particles
Son so that the blue light that blue-ray LED is sent can not be excited completely in the edge of quantum dot enhanced film, and then in display panel
Effective display surface periphery produce light leakage phenomena.In addition, the periphery of backlight module is typically provided with glue frame, glue frame is also possible to anti-
Penetrating the blue light that blue-ray LED is sent, and then produce light leak on effective display surface periphery of display panel causes irregular colour phenomenon.
The content of the invention
An object of the present invention is to provide a kind of display device for being prevented effectively from and producing light leakage phenomena, with solution
State problem.
The present invention is proposed
Compared with prior art, the present invention sets the first larger diffusion of particle diameter in the effective display surface of correspondence on light guide plate
Point, and in the less second diffusion point of peripheral surface setting particle diameter on the effective display surface periphery of correspondence on light guide plate so that with not
The first diffusion point with particle diameter is directed to light with different uniform intensities with the second diffusion point light that can send light source and changed
Film.Because the less second diffusion point of particle diameter is disposed on second of the peripheral surface on the effective display surface periphery of correspondence on light guide plate
In region, therefore, the second area of the peripheral surface on the effective display surface periphery of correspondence is effectively reduced light intensity on light guide plate, enters
And avoid producing light leakage phenomena on effective display surface periphery of display panel.
Brief description of the drawings
Fig. 1 is the schematic diagram of display device in first embodiment of the invention.
Fig. 2 is the display panel and the top view of side entering type light source in Fig. 1.
Fig. 3 is the light guide plate and the top view of side entering type light source in Fig. 1.
Fig. 4 is the top view of light guide plate and side entering type light source in second embodiment of the invention.
Fig. 5 is the top view of light guide plate and side entering type light source in third embodiment of the invention.
Fig. 6 is the top view of light guide plate and side entering type light source in fourth embodiment of the invention.
Fig. 7 is the top view of light guide plate and side entering type light source in fifth embodiment of the invention.
Fig. 8 is the top view of light guide plate and side entering type light source in sixth embodiment of the invention.
Fig. 9 is the top view of light guide plate and side entering type light source in seventh embodiment of the invention.
Embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Fig. 1 to Fig. 3 is referred to, Fig. 1 is the schematic diagram of display device 1 in first embodiment of the invention, and Fig. 2 is in Fig. 1
The top view of display panel 10 and side entering type light source 124, Fig. 3 is the light guide plate 120 and the vertical view of side entering type light source 124 in Fig. 1
Figure.As shown in figure 1, display device 1 includes display panel 10 and backlight module 12, wherein display panel 10 is arranged at backlight mould
In group 12.In this embodiment, display device 1 can be liquid crystal display device, and display panel 10 can be liquid crystal display panel, but
It is not limited.Display panel 10 has effective display surface 100 and the peripheral surface 110 positioned at effective display surface periphery.Typically
For, the surrounding of display panel 10 is formed with black light shield layer (Black Matrix, BM), and effective display surface 100 is to be located at
Region in black light shield layer, can also show word with image so that user sees the region regarded.
Backlight module 12 includes light guide plate 120, light switching film 122, side entering type light source 124 and framework 126.It is guide-lighting
Plate 120, light switching film 122 are all arranged in framework 126 with side entering type light source 124.In this embodiment, framework 126 can
For glue frame, but it is not limited.Light switching film 122 is arranged on light guide plate 120, and light guide plate 120 is changed towards light
Diffusion point is provided with the surface of film 122, and side entering type light source 124 is arranged at the side of light guide plate 120, this side and leaded light
Plate sets the surface of diffusion point adjacent, and its specific set-up mode for spreading point can be hereafter further described.In addition, general meeting
In the top of light switching film 122, optical film combination, the wherein optical characteristics to improve light, optical film combination are set
Comprising blooming piece be, for example, prismatic lens, diffusion sheet etc., but specifically using which kind of visual practical application of combination depending on.
As shown in Fig. 2 display panel 10 have around the first side 100a of effective display surface 100, second side 100b,
3rd side 100c and four side 100d, wherein first side 100a are adjacent with second side 100b, the 3rd side 100c, and
First side 100a is relative with four side 100d.In this embodiment, the corresponding first side 100a of side entering type light source 124 is set,
But it is not limited.
As shown in figure 3, light guide plate 120 has first area A1 and second area A2, wherein first area A1 is to that should have
Effect display surface 100 is set, and the peripheral surface on the effective periphery of display surface 100 of second area A2 correspondences is set.In this embodiment, lead
Tabula rasa 120 includes a plurality of first diffusion points 1200 and a plurality of second diffusion points 1202, wherein the first diffusion point 1200 is set
It is placed in the A1 of first area, and the second diffusion point 1202 is arranged in second area A2.Because A1 correspondences in first area are effectively aobvious
Show that face 100 is set, and the peripheral surface on the effective periphery of display surface 100 of second area A2 correspondences is set, therefore, a plurality of first diffusions
The effective display surface 100 of the correspondence of point 1200 is set, and the periphery on a plurality of effective peripheries of display surface 100 of correspondence of second diffusion point 1202
Face is set.It should be noted that, the scope that first area A1 and second area A2 is covered can be determined according to actual light extraction demand.
In addition, the particle diameter of the second diffusion point 1202 is less than the particle diameter of the first diffusion point 1200.It is preferred that the particle diameter of the first diffusion point 1200
300 microns can be more than, and the particle diameter of the second diffusion point 1202 is smaller than 150 microns, but be not limited.
In addition, light guide plate 120 has first side 120a, second side 120b, the 3rd side 120c and four side
120d, wherein first side 120a are adjacent with second side 120b, the 3rd side 120c, and first side 120a and four side
120d is relative.After display panel 10 is arranged on backlight module 12, the first side 100a of display panel 10, second side
100b, the 3rd side 100c and four side 100d respectively the first side 120a of corresponding light guide plate 120, second side 120b,
3rd side 120c and four side 120d.Therefore, side entering type light source 124 is also the first side 120a of correspondence light guide plate 120
Set.
In this embodiment, second side 100b, the 3rd side 100c of the correspondence display panel 10 of the second diffusion point 1202
It is arranged at four side 100d in the second area A2 of light guide plate 120.However, the second diffusion point 1202 can also correspond to display surface
One of the second side 100b of plate 10, the 3rd side 100c and four side 100d wherein two are arranged at light guide plate
In 120 second area A2, specifically using the visual practical application of which kind of mode depending on.
Side entering type light source 124 is to send the first coloured light L1 into light guide plate 120.Due to the particle diameter of the second diffusion point 1202
Less than the particle diameter of the first diffusion point 1200, therefore, light conversion is directed to via the first diffusion point 1200 in the A1 of first area
First coloured light L1 of film 122 intensity is that can be more than to be directed to light turn via the second diffusion point 1202 in second area A2
Change the first coloured light L1 of film 122 intensity, i.e. first area A1 go out that luminous intensity is greater than second area A2 go out luminous intensity.
Thereby, the first coloured light L1 can be directed to light with different uniform intensities from the second diffusion point 1202 and turned by the first diffusion point 1200
Film 122 is changed, that is, weakens the light intensity on the periphery of effective display surface 100 for being directed to display panel 10, and then is avoided in display
The periphery of effective display surface 100 of panel 10 produces light leakage phenomena.Point 1202 is spread by first in the first diffusion point 1200 and second
Coloured light L1 is uniformly directed to after light switching film 122, and the first coloured light L1 can be converted to the second coloured light by light switching film 122
L2, and sent towards the direction of display panel 10.
In general, between the effective display surface 100 of correspondence and the first side 100a of display panel 10 region (that is,
Incident side) button or other hardware components can be set so that the first side 100a of effective display surface 100 and display panel 10 it
Between more other three sides of width come wide, therefore, the first side 100a ratios of display panel 10 less likely produce light leakage phenomena.
In this embodiment, light switching film 122 can be quantum dot enhanced film (Quantum Dot
Enhancement Film,QDEF).Quantum dot enhanced film is used for coordinating with blue light source, with strengthen light source color rendering with it is wide
Colour gamut efficiency.Quantum dot enhanced film has two kinds of different size of phosphor particles, by blue light illumination two kinds of fluorescent material
Particle produces feux rouges and green glow to excite, along with some blue light can penetrate quantum dot enhanced film, to strengthen thin in quantum dot
Film opposite side makes feux rouges, green glow and blue light blend together white light.Therefore, when light switching film 122 is quantum dot enhanced film, side
Blue light, such as blue light-emitting diode can be sent by entering formula light source 124.Now, the first above-mentioned coloured light L1 is blue light, and above-mentioned
The second coloured light L2 be white light.
Referring to Fig. 4, Fig. 4 is the top view of light guide plate 220 and side entering type light source 124 in second embodiment of the invention.Lead
Tabula rasa 220 in place of the main difference of above-mentioned light guide plate 120 with being, light guide plate 220 additionally comprises a plurality of 3rd diffusion points
1204, as shown in Figure 4.In this embodiment, a plurality of 3rd diffusion points 1204 are also effective displays of correspondence display panel 10
The peripheral surface on the periphery of face 100 is arranged in second area A2.In addition, the particle diameter of the 3rd diffusion point 1204 is less than the first diffusion point
1200 particle diameter and the particle diameter that point 1202 is spread more than second.It is preferred that the particle diameter of the 3rd diffusion point 1204 can be more than or equal to
150 microns and less than or equal to 300 microns, but be not limited.In this embodiment, the second diffusion point 1202 is relatively distant from aobvious
Show effective display surface 100 of panel 10, and effective display surface 100 of the 3rd diffusion 1204 relatively close display panels 10 of point, i.e.,
As shown in figure 4, a plurality of 3rd diffusion points 1204 are arranged at a plurality of first diffusion points 1200 and a plurality of second diffusion points
Between 1202.After the light guide plate 120 in Fig. 1 is replaced with the light guide plate 220 in Fig. 4, expand via first in the A1 of first area
The intensity that scatterplot 1200 is directed to the first coloured light L1 of light switching film 122 can be more than via second in second area A2
Diffusion point 1202 and the 3rd diffusion point 1204 are directed to the first coloured light L1 of light switching film 122 intensity, i.e. first area
The A1 luminous intensity that goes out is greater than second area A2.Thereby, first diffusion the 1200, second diffusion of point point 1202 and the 3rd diffusion point
First coloured light L1 with different uniform intensities can be directed to light switching film 122 by 1204, and then be avoided in display panel 10
The periphery of effective display surface 100 produce light leakage phenomena.It should be noted that, the element of label identical with shown in Fig. 3 in Fig. 4, its
Action principle is roughly the same, will not be repeated here.
Referring to Fig. 5, Fig. 5 is the top view of light guide plate 320 and side entering type light source 124 in third embodiment of the invention.Lead
Tabula rasa 320 in place of the main difference of above-mentioned light guide plate 220 with being, the second diffusion point 1202 and the 3rd of light guide plate 320 expands
Scatterplot 1204 is mutually mixed.It should be noted that, the element of label identical with shown in Fig. 4 in Fig. 5, its action principle substantially phase
Together, it will not be repeated here.
Referring to Fig. 6, Fig. 6 is the top view of light guide plate 420 and side entering type light source 124 in fourth embodiment of the invention.Lead
Tabula rasa 420 in place of the main difference of above-mentioned light guide plate 220 with being, light guide plate 420 additionally comprises a plurality of 4th diffusion points
1206, as shown in Figure 6.In this embodiment, a plurality of 4th diffusion points 1206 are also effective displays of correspondence display panel 10
The peripheral surface on the periphery of face 100 is arranged in second area A2.In addition, the particle diameter of the 4th diffusion point 1206 is equal to the first diffusion point
1200 particle diameter.In this embodiment, effective display surfaces 100 that the second diffusion point 1202 is relatively distant from display panel 10, and the
Three diffusion point 1204 with the 4th diffusion put 1206 be mutually mixed and relatively close display panel 10 effective display surface 100, i.e., such as
Shown in Fig. 6, a plurality of 3rd diffusion points 1204 are arranged at a plurality of with the diffusion point being mutually mixed of the 4th diffusion point 1206
Between first diffusion point 1200 and a plurality of second diffusion points 1202.When the light guide plate 120 in Fig. 1 is with the light guide plate 420 in Fig. 6
After replacement, the strong of 1200 the first coloured light L1 for being directed to light switching film 122 is put via the first diffusion in the A1 of first area
Degree can be more than to be guided via the diffusion point 1204 of the second diffusion point the 1202, the 3rd and the 4th diffusion point 1206 in second area A2
To the first coloured light L1 of light switching film 122 intensity, i.e. the luminous intensity that goes out of first area A1 is greater than second area A2.By
This, the diffusion point 1204 of first diffusion the 1200, second diffusion of point point the 1202, the 3rd and the 4th diffusion point 1206 can be by the first coloured light
L1 is directed to light switching film 122 with different uniform intensities, and then avoids on the periphery of effective display surface 100 of display panel 10
Produce light leakage phenomena.It should be noted that, the element of label identical with shown in Fig. 4 in Fig. 6, its action principle is roughly the same,
This is repeated no more.
Referring to Fig. 7, Fig. 7 is the top view of light guide plate 520 and side entering type light source 124 in fifth embodiment of the invention.Lead
Tabula rasa 520 in place of the main difference of above-mentioned light guide plate 420 with being, the second diffusion point the 1202, the 3rd of light guide plate 520 spreads
Point 1204 is mutually mixed with the 4th diffusion point 1206.It should be noted that, the element of label identical with shown in Fig. 6 in Fig. 7, it is made
It is roughly the same with principle, it will not be repeated here.
Referring to Fig. 8, Fig. 8 is the top view of light guide plate 620 and side entering type light source 124 in sixth embodiment of the invention.Lead
It is in place of the main difference of tabula rasa 620 and above-mentioned light guide plate 220, the second area A2 of light guide plate 620 scope covers the
The second diffusion point 1202 is provided with one side 120a, and correspondence first side 120a second area A2.Due to light guide plate 620
First side 120a correspondence display panel 10 first side 100a, therefore, light guide plate 620 can be avoided further in display surface
Light leakage phenomena is produced at the first side 100a of plate 10, while avoiding at the 100a of first side that light source is too strong, brightness disproportionation is caused
It is even.It should be noted that, the element of label identical with shown in Fig. 4 in Fig. 8, its action principle is roughly the same, will not be repeated here.
Referring to Fig. 9, Fig. 9 is the top view of light guide plate 720 and side entering type light source 124 in seventh embodiment of the invention.Lead
Tabula rasa 720 in place of the main difference of above-mentioned light guide plate 220 with being, in light guide plate 720, the second diffusion point 1202 and the 3rd
Diffusion 1204 density in second area A2 of point is approximately equal to the first diffusion 1200 density in the A1 of first area of point.Change
Yan Zhi, the present invention can adjust the arrangement mode and density of different-grain diameter diffusion point according to actual light extraction demand, to avoid in display
The periphery of effective display surface 100 of panel 10 produces light leakage phenomena.It should be noted that, the member of label identical with shown in Fig. 4 in Fig. 9
Part, its action principle is roughly the same, will not be repeated here.
In summary, the first diffusion point larger in the effective display surface setting particle diameter of correspondence on light guide plate of the invention, and in
The peripheral surface on the effective display surface periphery of correspondence sets the less second diffusion point of particle diameter on light guide plate so that with different-grain diameter
First diffusion point spreads a light that can send light source from second and is directed to light switching film with different uniform intensities.Due to
The less second diffusion point system of particle diameter is arranged on light guide plate in the second area of the peripheral surface on the effective display surface periphery of correspondence, because
This, the second area of the peripheral surface on the effective display surface periphery of correspondence is effectively reduced light intensity on light guide plate, and then avoids
Effective display surface periphery of display panel produces light leakage phenomena.In addition, the present invention can be according to actual light extraction demand, on light guide plate
The 3rd of other particle diameters are set to spread point and/or the 4th diffusion in the second area of the peripheral surface on the effective display surface periphery of correspondence
Point, can equally avoid producing light leakage phenomena on effective display surface periphery of display panel.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example for implementing the present invention.
It must be noted that, the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
In the range of the change and retouching made, belong to the scope of patent protection of the present invention.
Claims (15)
1. a kind of display device, it is characterised in that the display device is included：
Display panel, the peripheral surface with effective display surface and positioned at effective display surface periphery；And
Backlight module, the display panel is arranged on the backlight module, and the backlight module is included：
Light guide plate, comprising a plurality of first diffusion points and a plurality of second diffusion points, a plurality of first diffusions points are to should
Effective display surface is set, a plurality of second diffusions points to should the peripheral surface on effectively display surface periphery set, every one second expansion
The particle diameter of scatterplot is less than the particle diameter of every one first diffusion point；
Light switching film, is arranged on the light guide plate；And
Side entering type light source, is arranged at the side of the light guide plate, and to send the first coloured light into the light guide plate, the side is led with this
Tabula rasa has the surface of the plural number first diffusion point adjacent；
Wherein, first coloured light is uniformly directed to the light with a plurality of second diffusion points and turned by a plurality of first diffusion points
Film is changed, first coloured light is converted to the second coloured light by the light switching film；The display panel has around effective display
The first side in face, second side, the 3rd side and four side, the first side and the second side, the 3rd side phase
Neighbour, the first side is relative with the four side, the side entering type light source to should first side set, this it is a plurality of second diffusion
Point to should second side and the 3rd side set.
2. display device as claimed in claim 1, it is characterised in that a plurality of second diffusions points are also to should four side
Set.
3. display device as claimed in claim 1, it is characterised in that the light guide plate, should also comprising a plurality of three diffusion points
A plurality of three diffusions points to should the peripheral surface on effectively display surface periphery set, the particle diameter of every 1 the 3rd diffusion point is less than each
The particle diameter of first diffusion point and the particle diameter that point is spread more than every one second.
4. display device as claimed in claim 3, it is characterised in that the particle diameter of every one first diffusion point is more than 300 microns, often
The particle diameter of one second diffusion point is less than 150 microns, and the particle diameter of every 1 the 3rd diffusion point is more than or equal to 150 microns and is less than or waits
In 300 microns.
5. display device as claimed in claim 3, it is characterised in that it is effectively aobvious that a plurality of second diffusion points are relatively distant from this
Show face, and the relatively close effective display surface of a plurality of 3rd diffusion points.
6. display device as claimed in claim 3, it is characterised in that a plurality of second diffusion points and a plurality of three expansions
Scatterplot is mutually mixed.
7. display device as claimed in claim 3, it is characterised in that the light guide plate, should also comprising a plurality of four diffusion points
A plurality of four diffusions points to should the peripheral surface on effectively display surface periphery set, the particle diameter of every 1 the 4th diffusion point is equal to each
The particle diameter of first diffusion point.
8. display device as claimed in claim 7, it is characterised in that it is effectively aobvious that a plurality of second diffusion points are relatively distant from this
Show face, a plurality of 3rd diffusion points are mutually mixed and relatively close effective display surface with a plurality of 4th diffusion points.
9. display device as claimed in claim 7, it is characterised in that a plurality of second diffusion points, a plurality of three expansions
Scatterplot is mutually mixed with a plurality of 4th diffusion points.
10. display device as claimed in claim 1, it is characterised in that the light switching film is quantum dot enhanced film, should
First coloured light is blue light, and second coloured light is white light.
11. a kind of display device, it is characterised in that include：
Display panel, the peripheral surface with effective display surface and positioned at effective display surface periphery；And
Backlight module, the display panel is arranged on the backlight module, and the backlight module is included：
Light guide plate, with first area and second area, the first area is to that effectively display surface should set, the second area
To should effectively display surface periphery peripheral surface set, the light guide plate comprising a plurality of first diffusion point and it is a plurality of second expand
Scatterplot, a plurality of first diffusion points are arranged in the first area, and a plurality of second diffusion points are arranged at the second area
In, the particle diameter of every one second diffusion point is less than the particle diameter of every one first diffusion point；
Light switching film, is arranged on the light guide plate；And
Side entering type light source, is arranged at the side of the light guide plate, and to send the first coloured light into the light guide plate, the side is led with this
Tabula rasa has the surface of the plural number first diffusion point adjacent；
Wherein, the intensity that first coloured light of the light switching film is directed to via the first area is more than via secondth area
Domain is directed to the intensity of first coloured light of the light switching film, and first coloured light is converted to second by the light switching film
Coloured light；The display panel has around the first side, second side, the 3rd side of effective display surface and four side, should
First side is adjacent with the second side, the 3rd side, and the first side is relative with the four side, the side entering type light source pair
Should first side set, a plurality of second diffusions points to should second side and the 3rd side set.
12. display device as claimed in claim 11, it is characterised in that a plurality of second diffusions points are also to should the 4th side
Side is set.
13. display device as claimed in claim 11, it is characterised in that the light guide plate also spreads points comprising a plurality of three,
This it is a plurality of three diffusion point to should effectively display surface periphery peripheral surface set, every 1 the 3rd diffusion point particle diameter be less than often
The particle diameter of one first diffusion point and the particle diameter that point is spread more than every one second.
14. display device as claimed in claim 13, it is characterised in that the particle diameter of every one first diffusion point is more than 300 microns,
It is every one second diffusion point particle diameter be less than 150 microns, every 1 the 3rd diffusion point particle diameter be more than or equal to 150 microns and be less than or
Equal to 300 microns.
15. display device as claimed in claim 11, it is characterised in that the light switching film is quantum dot enhanced film,
First coloured light is blue light, and second coloured light is white light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708562.1A CN104460109B (en) | 2014-11-28 | 2014-11-28 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708562.1A CN104460109B (en) | 2014-11-28 | 2014-11-28 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104460109A CN104460109A (en) | 2015-03-25 |
| CN104460109B true CN104460109B (en) | 2017-07-28 |
Family
ID=52906406
Family Applications (1)
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| CN201410708562.1A Active CN104460109B (en) | 2014-11-28 | 2014-11-28 | Display device |
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| CN106292056A (en) * | 2015-06-09 | 2017-01-04 | 瑞仪光电(苏州)有限公司 | Backlight module |
| KR102196443B1 (en) * | 2015-06-24 | 2020-12-29 | 엘지디스플레이 주식회사 | Backlight unit and liquid crystal display device with the same |
| EP3379133B1 (en) | 2015-11-19 | 2021-08-11 | Sony Group Corporation | Lighting system and display apparatus |
| CN106292068A (en) * | 2016-09-12 | 2017-01-04 | 武汉华星光电技术有限公司 | Quantum dot backlight module and liquid crystal indicator |
| JP7084404B2 (en) * | 2016-12-09 | 2022-06-14 | ルミレッズ リミテッド ライアビリティ カンパニー | Light guide with patterned ink |
| US10418534B2 (en) | 2016-12-09 | 2019-09-17 | Lumileds Llc | Light guide with patterned ink |
| CN109491006B (en) * | 2018-12-05 | 2020-09-04 | 苏州佳世达电通有限公司 | Backlight module |
| CN209674771U (en) * | 2019-06-11 | 2019-11-22 | 北京京东方技术开发有限公司 | A kind of display device |
| CN110333623B (en) * | 2019-06-17 | 2021-01-15 | 武汉华星光电技术有限公司 | Display device |
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| CN2604704Y (en) * | 2002-11-22 | 2004-02-25 | 鸿富锦精密工业（深圳）有限公司 | Back light system |
| US7478942B2 (en) * | 2003-01-23 | 2009-01-20 | Samsung Electronics Co., Ltd. | Light guide plate with light reflection pattern |
| TW200528849A (en) * | 2004-02-27 | 2005-09-01 | Hon Hai Prec Ind Co Ltd | Light guide plate |
| CN2769943Y (en) * | 2004-12-30 | 2006-04-05 | 群康科技(深圳)有限公司 | Double-side liquid crystal display device |
| JP4878335B2 (en) * | 2007-06-14 | 2012-02-15 | シチズン電子株式会社 | Light guide plate manufacturing method, light guide plate, backlight unit, and display device |
| CN202521397U (en) * | 2012-02-15 | 2012-11-07 | 青岛海信电器股份有限公司 | Backlight module |
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