CN104460109A - Display device - Google Patents
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- CN104460109A CN104460109A CN201410708562.1A CN201410708562A CN104460109A CN 104460109 A CN104460109 A CN 104460109A CN 201410708562 A CN201410708562 A CN 201410708562A CN 104460109 A CN104460109 A CN 104460109A
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- Prior art keywords
- light
- diffusion point
- guide plate
- diffusion
- particle diameter
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Classifications
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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
- G02F1/133606—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
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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
- G02F1/133606—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 invention provides a display device. The display device comprises a display panel and a backlight module. The display panel is arranged on the backlight module and provided with an effective display surface and a periphery surface located on the periphery of the display surface. The backlight module comprises a light-guiding plate, a light conversion film and a lateral-entering light source. The light-guiding plate comprises multiple first diffusion points and multiple second diffusion points, the first diffusion points are arranged corresponding to the effective display surface, the second diffusion points are arranged corresponding to the periphery surface on the periphery of the effective display surface, and the grain diameter of the second diffusion points is smaller than that of the first diffusion points. The light conversion film is arranged on the light-guiding plate. The lateral-entering light source is arranged on the edge of the light-guiding plate and used for emitting first color light to the light-guiding plate, and the edge is adjacent to the surface, provided with the first diffusion points, of the light-guiding plate. The first diffusion points and the second diffusion points evenly guide the first color light to the light conversion film, and the light conversion film converts the first color light into second color light.
Description
Technical field
The present invention is about a kind of display device, and espespecially a kind of can effectively avoiding produces the display device of light leakage phenomena.
Background technology
At present, for the light source of the backlight module of liquid crystal indicator based on Cold Cathode Fluorescent fluorescent tube (ColdCathode Fluorescent Lamp, CCFL) and light-emittingdiode (Light Emitting Diode, LED).Due to the volume of LED and power consumption less than CCFL, can accomplish slimming product design, color saturation is better, and without mercury pollution, therefore LED replaces CCFL gradually.In addition, existing manufacturer develops quantum dot enhanced film (Quantum Dot Enhancement Film, QDEF) at present, is used for coordinating with blue-ray LED, to strengthen light source color rendering and wide colour gamut usefulness.Quantum dot enhanced film is the phosphor particles with two kinds of different sizes, ruddiness and green glow is produced to excite by these two kinds of phosphor particles of blue light illumination, add some blue light and can penetrate quantum dot enhanced film, to make ruddiness, green glow and blue light blend together white light in quantum dot enhanced film opposite side.
Generally speaking, the edge of quantum dot enhanced film does not usually have phosphor particles or only contains less phosphor particles, the blue light that blue-ray LED is sent cannot be excited completely in the edge of quantum dot enhanced film, and then produces light leakage phenomena at effective display surface periphery of display panel.In addition, the periphery of backlight module is all provided with glue frame usually, the glue frame also likely blue light that sends of reflect blue LED, and then produces light leak at effective display surface periphery of display panel and cause irregular colour phenomenon.
Summary of the invention
An object of the present invention is to provide a kind of display device effectively can avoiding producing light leakage phenomena, to solve the problem.
The present invention proposes
Compared with prior art, the present invention's corresponding effectively display surface in light guide plate arranges the first larger diffusion point of particle diameter, and the peripheral surface of corresponding effectively display surface periphery arranges the second less diffusion point of particle diameter in light guide plate, make the first diffusion point and second with different-grain diameter spread the light that some light source can be sent and be evenly directed to light switching film with different light intensity.Because the second diffusion point that particle diameter is less is arranged in the second area of the corresponding effectively peripheral surface of display surface periphery in light guide plate, therefore, in light guide plate, the second area of the corresponding effectively peripheral surface of display surface periphery effectively can reduce light intensity, and then avoids producing light leakage phenomena at effective display surface periphery of display panel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of display device in first embodiment of the invention.
Fig. 2 is the vertical view of display panel in Fig. 1 and side entering type light source.
Fig. 3 is the vertical view of light guide plate in Fig. 1 and side entering type light source.
Fig. 4 is the vertical view of light guide plate and side entering type light source in second embodiment of the invention.
Fig. 5 is the vertical view of light guide plate and side entering type light source in third embodiment of the invention.
Fig. 6 is the vertical view of light guide plate and side entering type light source in fourth embodiment of the invention.
Fig. 7 is the vertical view of light guide plate and side entering type light source in fifth embodiment of the invention.
Fig. 8 is the vertical view of light guide plate and side entering type light source in sixth embodiment of the invention.
Fig. 9 is the vertical view of light guide plate and side entering type light source in seventh embodiment of the invention.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Refer to Fig. 1 to Fig. 3, Fig. 1 is the schematic diagram of display device 1 in first embodiment of the invention, and Fig. 2 is display panel in Fig. 1 10 and the vertical view of side entering type light source 124, and Fig. 3 is the light guide plate 120 in Fig. 1 and the vertical view of side entering type light source 124.As shown in Figure 1, display device 1 comprises display panel 10 and backlight module 12, and wherein display panel 10 is arranged on backlight module 12.In this embodiment, display device 1 can be liquid crystal indicator, and display panel 10 can be display panels, but not as limit.Display panel 10 has effective display surface 100 and is positioned at the peripheral surface 110 of this effective display surface periphery.Generally speaking, the surrounding of display panel 10 is formed with black light shield layer (Black Matrix, BM), and namely effective display surface 100 is the region being positioned at black light shield layer, also can show word and the region looked seen by image for user.
Backlight module 12 comprises light guide plate 120, light switching film 122, side entering type light source 124 and framework 126.Light guide 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 be glue frame, but not as limit.Light switching film 122 is arranged in light guide plate 120, light guide plate 120 is provided with diffusion point on the surface towards light switching film 122, and side entering type light source 124 is arranged at the side of light guide plate 120, it is adjacent that this side and light guide plate arrange the surface of spreading a little, and the concrete set-up mode of its diffusion point hereafter can be further described.In addition, general meeting arranges optical film combination above light switching film 122, in order to improve the optical characteristics of light, the blooming piece that wherein optical film combination comprises is such as prismatic lens, diffusion sheet etc., but which kind of combination of concrete employing is determined by practical application.
As shown in Figure 2, display panel 10 has around first side 100a, the second side 100b of effective display surface 100, the 3rd side 100c and four side 100d, wherein first side 100a and second side 100b, the 3rd side 100c are adjacent, and first side 100a is relative with four side 100d.In this enforcement, the corresponding first side 100a of side entering type light source 124 is arranged, but not as limit.
As shown in Figure 3, light guide plate 120 has first area A1 and second area A2, and wherein A1 corresponding effectively display surface 100 in first area is arranged, and the peripheral surface of corresponding effectively display surface 100 periphery of second area A2 is arranged.In this embodiment, light guide plate 120 comprises a plurality of first diffusion point 1200 and a plurality of second diffusion point 1202, and wherein the first diffusion point 1200 is arranged in the A1 of first area, and the second diffusion point 1202 is arranged in second area A2.Because A1 corresponding effectively display surface 100 in first area is arranged, and the peripheral surface of corresponding effectively display surface 100 periphery of second area A2 is arranged, therefore, the corresponding effectively display surface 100 of a plurality of first diffusion point 1200 is arranged, and the peripheral surface of corresponding effectively display surface 100 periphery of a plurality of second diffusion point 1202 is arranged.It should be noted that, the scope that first area A1 and second area A2 is contained can determine according to actual bright dipping demand.In addition, the particle diameter of the second diffusion point 1202 is less than the particle diameter of the first diffusion point 1200.Preferably, the particle diameter of the first diffusion point 1200 can be greater than 300 microns, and the particle diameter of the second diffusion point 1202 can be less than 150 microns, but not as limit.
In addition, light guide plate 120 has first side 120a, second side 120b, the 3rd side 120c and four side 120d, and wherein first side 120a and second side 120b, the 3rd side 120c are adjacent, and first side 120a is relative with four side 120d.Be arranged at after on backlight module 12 by display panel 10, first side 100a, the second side 100b of display panel 10, the 3rd side 100c and four side 100d be first side 120a, the second side 120b of corresponding light guide plate 120, the 3rd side 120c and four side 120d respectively.Therefore, side entering type light source 124 is also that the first side 120a of corresponding light guide plate 120 is arranged.
In this embodiment, second side 100b, the 3rd side 100c and four side 100d of the second diffusion point 1202 corresponding display panels 10 are arranged in the second area A2 of light guide plate 120.But, the second side 100b that second diffusion point 1202 also may correspond to display panel 10, the 3rd side 100c and four side 100d one of them or wherein two be arranged in the second area A2 of light guide plate 120, concrete which kind of mode of employing is determined by practical application.
Side entering type light source 124 is in order to send the first coloured light L1 in light guide plate 120.Particle diameter due to the second diffusion point 1202 is less than the particle diameter of the first diffusion point 1200, therefore, namely the intensity being directed to the first coloured light L1 of light switching film 122 via the first diffusion point 1200 in the A1 of first area can be greater than the intensity being directed to the first coloured light L1 of light switching film 122 via the second diffusion point 1202 in second area A2, namely first area A1 go out that light intensity is greater than second area A2 go out light intensity.By this, first diffusion point 1200 and second spreads and a little 1,202 first coloured light L1 evenly can be directed to light switching film 122 with different light intensity, namely weaken the light intensity of effective display surface 100 periphery being directed to display panel 10, and then avoid producing light leakage phenomena at effective display surface 100 periphery of display panel 10.First diffusion point 1200 and second spread a little 1,202 first coloured light L1 is evenly directed to light switching film 122 after, the first coloured light L1 can be converted to the second coloured light L2 by light switching film 122, and sends towards the direction of display panel 10.
Generally speaking, the region of correspondence effectively between display surface 100 and the first side 100a of display panel 10 (that is, incident side) button or other hardware components can be set, the width between effective display surface 100 and the first side 100a of display panel 10 is made to come wide compared with other three limit, therefore, the first side 100a of display panel 10 compares and can not produce light leakage phenomena.
In this embodiment, light switching film 122 can be quantum dot enhanced film (Quantum DotEnhancement Film, QDEF).Quantum dot enhanced film is used for coordinating with blue light source, to strengthen light source color rendering and wide colour gamut usefulness.Quantum dot enhanced film has the phosphor particles of two kinds of different sizes, ruddiness and green glow is produced to excite by these two kinds of phosphor particles of blue light illumination, add some blue light and can penetrate quantum dot enhanced film, to make ruddiness, green glow and blue light blend together white light in quantum dot enhanced film opposite side.Therefore, when light switching film 122 is quantum dot enhanced film, side entering type light source 124 can send blue light, such as blue light-emitting diode.Now, the first above-mentioned coloured light L1 is blue light, and the second above-mentioned coloured light L2 is white light.
Refer to Fig. 4, Fig. 4 is the vertical view of light guide plate 220 and side entering type light source 124 in second embodiment of the invention.Light guide plate 220 is with the main difference part of above-mentioned light guide plate 120, and light guide plate 220 separately comprises a plurality of 3rd diffusion point 1204, as shown in Figure 4.In this embodiment, a plurality of 3rd diffusion point 1204 is also that the peripheral surface of effective display surface 100 periphery of corresponding display panel 10 is arranged in second area A2.In addition, the particle diameter of the 3rd diffusion point 1204 is less than the particle diameter of the first diffusion point 1200 and is greater than the particle diameter of the second diffusion point 1202.Preferably, the particle diameter of the 3rd diffusion point 1204 can be more than or equal to 150 microns and be less than or equal to 300 microns, but not as limit.In this embodiment, second diffusion point 1202 is relatively away from effective display surface 100 of display panel 10, and the 3rd diffusion point 1204 is relatively near effective display surface 100 of display panel 10, namely as shown in Figure 4, a plurality of 3rd diffusion point 1204 is arranged at a plurality of first diffusion point and 1200 and a plurality of second spreads a little between 1202.After the light guide plate 120 in Fig. 1 is replaced with the light guide plate 220 in Fig. 4, namely the intensity being directed to the first coloured light L1 of light switching film 122 via the first diffusion point 1200 in the A1 of first area can be greater than and spread a little 1204 intensity being directed to the first coloured light L1 of light switching film 122 via the second diffusion point 1202 and the 3rd in second area A2, and namely the light intensity that goes out of first area A1 is greater than second area A2.By this, the first diffusion point 1200, second diffusion point 1202 and the 3rd spreads and a little 1,204 first coloured light L1 evenly can be directed to light switching film 122 with different light intensity, and then avoids producing light leakage phenomena at effective display surface 100 periphery of display panel 10.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, does not repeat them here.
Refer to Fig. 5, Fig. 5 is the vertical view of light guide plate 320 and side entering type light source 124 in third embodiment of the invention.Light guide plate 320 is with the main difference part of above-mentioned light guide plate 220, and the second diffusion point 1202 and the 3rd of light guide plate 320 spreads and a little 1204 mutually to mix.It should be noted that, the element of label identical with shown in Fig. 4 in Fig. 5, its action principle is roughly the same, does not repeat them here.
Refer to Fig. 6, Fig. 6 is the vertical view of light guide plate 420 and side entering type light source 124 in fourth embodiment of the invention.Light guide plate 420 is with the main difference part of above-mentioned light guide plate 220, and light guide plate 420 separately comprises a plurality of 4th diffusion point 1206, as shown in Figure 6.In this embodiment, a plurality of 4th diffusion point 1206 is also that the peripheral surface of effective display surface 100 periphery of corresponding display panel 10 is arranged in second area A2.In addition, the particle diameter of the 4th diffusion point 1206 equals the particle diameter of the first diffusion point 1200.In this embodiment, second diffusion point 1202 is relatively away from effective display surface 100 of display panel 10, and the 3rd diffusion point 1204 and the 4th spreads and a little 1206 mutually to mix and relative effective display surface 100 near display panel 10, namely as shown in Figure 6, a plurality of 3rd diffusion point 1204 and the 4th spreads a little 1206 diffusion points mutually mixed and is arranged at a plurality of first and spreads and a little 1200 and a plurality of second to spread a little between 1202.After the light guide plate 120 in Fig. 1 is replaced with the light guide plate 420 in Fig. 6, namely the intensity being directed to the first coloured light L1 of light switching film 122 via the first diffusion point 1200 in the A1 of first area can be greater than and spread a little 1206 intensity being directed to the first coloured light L1 of light switching film 122 via the second diffusion point the 1202, the 3rd diffusion point 1204 and the 4th in second area A2, and namely the light intensity that goes out of first area A1 is greater than second area A2.By this, first diffusion point 1200, second diffusion point the 1202, the 3rd diffusion point 1204 and the 4th spreads and a little 1,206 first coloured light L1 evenly can be directed to light switching film 122 with different light intensity, and then avoids producing light leakage phenomena at effective display surface 100 periphery of display panel 10.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, does not repeat them here.
Refer to Fig. 7, Fig. 7 is the vertical view of light guide plate 520 and side entering type light source 124 in fifth embodiment of the invention.Light guide plate 520 is with the main difference part of above-mentioned light guide plate 420, and the second diffusion point the 1202, the 3rd diffusion point 1204 and the 4th of light guide plate 520 spreads and a little 1206 mutually to mix.It should be noted that, the element of label identical with shown in Fig. 6 in Fig. 7, its action principle is roughly the same, does not repeat them here.
Refer to Fig. 8, Fig. 8 is the vertical view of light guide plate 620 and side entering type light source 124 in sixth embodiment of the invention.Light guide plate 620 is with the main difference part of above-mentioned light guide plate 220, and the scope of the second area A2 of light guide plate 620 contains first side 120a, and is provided with the second diffusion point 1202 in the second area A2 of corresponding first side 120a.The first side 100a of the corresponding display panel 10 of the first side 120a due to light guide plate 620, therefore, light guide plate 620 can be avoided producing light leakage phenomena at the 100a place, first side of display panel 10 further, avoids 100a place, first side light source excessively strong simultaneously, causes brightness irregularities.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, does not repeat them here.
Refer to Fig. 9, Fig. 9 is the vertical view of light guide plate 720 and side entering type light source 124 in seventh embodiment of the invention.Light guide plate 720 is with the main difference part of above-mentioned light guide plate 220, and in light guide plate 720, the second diffusion point 1202 and the 3rd spreads a little 1204 density in second area A2 and equals the density of the first diffusion point 1200 in the A1 of first area haply.In other words, the present invention can spread arrangement mode and the density of point according to actual bright dipping demand adjustment different-grain diameter, to avoid producing light leakage phenomena at effective display surface 100 periphery of display panel 10.It should be noted that, the element of label identical with shown in Fig. 4 in Fig. 9, its action principle is roughly the same, does not repeat them here.
In sum, the present invention's corresponding effectively display surface in light guide plate arranges the first larger diffusion point of particle diameter, and the peripheral surface of corresponding effectively display surface periphery arranges the second less diffusion point of particle diameter in light guide plate, make the first diffusion point and second with different-grain diameter spread the light that some light source can be sent and be evenly directed to light switching film with different light intensity.The second diffusion point system less due to particle diameter is arranged in the second area of the corresponding effectively peripheral surface of display surface periphery in light guide plate, therefore, in light guide plate, the second area of the corresponding effectively peripheral surface of display surface periphery effectively can reduce light intensity, and then avoids producing light leakage phenomena at effective display surface periphery of display panel.In addition, the present invention can according to actual bright dipping demand, in light guide plate the corresponding effectively peripheral surface of display surface periphery second area in the 3rd diffusion point and/or the 4th diffusion point of other particle diameter are set, can avoid equally producing light leakage phenomena at effective display surface periphery of display panel.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (18)
1. a display device, is characterized in that this display device comprises:
Display panel, has effective display surface and is positioned at the peripheral surface of this effective display surface periphery; And
Backlight module, this display panel is arranged on this backlight module, and this backlight module comprises:
Light guide plate, comprise a plurality of first diffusion point and a plurality of second diffusion point, this a plurality of first diffusion point is to should effectively arrange by display surface, this a plurality of second diffusion point to should effectively display surface periphery peripheral surface arrange, each second diffusion point particle diameter be less than each first diffusion particle diameter;
Light switching film, is arranged in this light guide plate; And
Side entering type light source, is arranged at the side of this light guide plate, and in order to send the first coloured light in this light guide plate, it is adjacent that this side and this light guide plate have the surface that this plural number first spreads a little;
Wherein, this plurality of first diffusion point a plurality of second spreads with this and a little this first coloured light is evenly directed to this light switching film, and this first coloured light is converted to the second coloured light by this light switching film.
2. display device as claimed in claim 1, it is characterized in that, this display panel has around the first side of this effective display surface, second side, the 3rd side and four side, this first side and this second side, the 3rd side are adjacent, this first side is relative with this four side, this side entering type light source is to arranging first side, and this plurality of second diffusion point is to should second side and the 3rd side arrange.
3. display device as claimed in claim 2, is characterized in that, this plurality of second diffusion point is also to arranging by four side.
4. display device as claimed in claim 1, it is characterized in that, this light guide plate also comprises a plurality of 3rd diffusion point, this a plurality of 3rd diffusion point to should effectively display surface periphery peripheral surface arrange, each the 3rd diffusion point particle diameter be less than each first diffusion point particle diameter and be greater than each second diffusion particle diameter.
5. display device as claimed in claim 4, it is characterized in that, the particle diameter of each the first diffusion point is greater than 300 microns, and the particle diameter of each the second diffusion point is less than 150 microns, and the particle diameter of each the 3rd diffusion point is more than or equal to 150 microns and is less than or equal to 300 microns.
6. display device as claimed in claim 4, is characterized in that, this plurality of second diffusion point is relatively away from this effective display surface, and this plurality of 3rd diffusion point is relatively near this effective display surface.
7. display device as claimed in claim 4, is characterized in that, this plurality of second diffusion point a plurality of 3rd spreads with this and a little mutually mixes.
8. display device as claimed in claim 4, it is characterized in that, this light guide plate also comprise a plurality of 4th diffusion point, this plurality of 4th diffusion point to should effectively display surface periphery peripheral surface arrange, each the 4th diffusion point particle diameter equal each first diffusion particle diameter.
9. display device as claimed in claim 8, is characterized in that, this plurality of second diffusion point is relatively away from this effective display surface, and this plurality of 3rd diffusion point a plurality of 4th spreads a little mutual to mix and relative to this effective display surface with this.
10. display device as claimed in claim 8, is characterized in that, this plurality of second diffusion point, these the 3rd diffusion points a plurality of 4th spread with this and a little mutually mix.
11. display device as claimed in claim 1, it is characterized in that, this light switching film is quantum dot enhanced film, and this first coloured light is blue light, and this second coloured light is white light.
12. 1 kinds of display device, is characterized in that comprising:
Display panel, has effective display surface and is positioned at the peripheral surface of this effective display surface periphery; And
Backlight module, this display panel is arranged on this backlight module, and this backlight module comprises:
Light guide plate, has first area and second area, this first area to should effectively display surface arrange, this second area to should effectively display surface periphery peripheral surface setting;
Light switching film, is arranged in this light guide plate; And
Side entering type light source, is arranged at the side of this light guide plate, and in order to send the first coloured light in this light guide plate, it is adjacent that this side and this light guide plate have the surface that this plural number first spreads a little;
Wherein, the intensity being directed to this first coloured light of this light switching film via this first area is greater than the intensity of this first coloured light being directed to this light switching film via this second area, and this first coloured light is converted to the second coloured light by this light switching film.
13. display device as claimed in claim 12, it is characterized in that, this light guide plate comprises a plurality of first diffusion point and a plurality of second diffusion point, this a plurality of first diffusion point is arranged in this first area, this a plurality of second diffusion point is arranged in this second area, and the particle diameter of each the second diffusion point is less than the particle diameter of each the first diffusion point.
14. display device as claimed in claim 13, it is characterized in that, this display panel has around the first side of this effective display surface, second side, the 3rd side and four side, this first side and this second side, the 3rd side are adjacent, this first side is relative with this four side, this side entering type light source is to arranging first side, and these the second diffusion points are to should second side and the 3rd side arrange.
15. display device as claimed in claim 14, is characterized in that, this plurality of second diffusion point is also to arranging by four side.
16. display device as claimed in claim 13, it is characterized in that, this light guide plate also comprises a plurality of 3rd diffusion point, this a plurality of 3rd diffusion point to should effectively display surface periphery peripheral surface arrange, each the 3rd diffusion point particle diameter be less than each first diffusion point particle diameter and be greater than each second diffusion particle diameter.
17. display device as claimed in claim 16, it is characterized in that, the particle diameter of each the first diffusion point is greater than 300 microns, and the particle diameter of each the second diffusion point is less than 150 microns, and the particle diameter of each the 3rd diffusion point is more than or equal to 150 microns and is less than or equal to 300 microns.
18. display device as claimed in claim 12, it is characterized in that, this light switching film is quantum dot enhanced film, and this first coloured light is blue light, and this second coloured light is white light.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410708562.1A CN104460109B (en) | 2014-11-28 | 2014-11-28 | Display device |
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|---|---|---|---|
| CN201410708562.1A CN104460109B (en) | 2014-11-28 | 2014-11-28 | Display device |
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| CN104460109A true CN104460109A (en) | 2015-03-25 |
| CN104460109B CN104460109B (en) | 2017-07-28 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292056A (en) * | 2015-06-09 | 2017-01-04 | 瑞仪光电(苏州)有限公司 | Backlight module |
| 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 |
| CN106292057A (en) * | 2015-06-24 | 2017-01-04 | 乐金显示有限公司 | Liquid crystal indicator including border fluorescence structure body |
| CN108292061A (en) * | 2015-11-19 | 2018-07-17 | 索尼公司 | Lighting device and display device |
| CN109491006A (en) * | 2018-12-05 | 2019-03-19 | 苏州佳世达电通有限公司 | Backlight module |
| CN110446887A (en) * | 2016-12-09 | 2019-11-12 | 亮锐有限责任公司 | Light guide with patterning ink |
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