CN108594358A - Light guide plate and display device - Google Patents
Light guide plate and display device Download PDFInfo
- Publication number
- CN108594358A CN108594358A CN201810786441.7A CN201810786441A CN108594358A CN 108594358 A CN108594358 A CN 108594358A CN 201810786441 A CN201810786441 A CN 201810786441A CN 108594358 A CN108594358 A CN 108594358A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- bubble
- light
- ontology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the present invention discloses a kind of light guide plate and display device, belongs to display technology field.The light guide plate is used for display device, and the light guide plate includes ontology, the incidence surface positioned at the body side and the light-emitting surface positioned at the bodies top, and bubble is formed in the ontology.The setting of bubble can mitigate the weight of light guide plate in the case where not reducing light guide plate in ontology.The thickness of light guide plate is constant, and most of light that light source module is sent out can still inject light guide plate, and bubble is arranged in the ontology of light guide plate.The present invention can mitigate the weight of light guide plate by being formed with bubble in the ontology of light guide plate in the case where not reducing light guide plate；In addition, bubble can destroy the total reflection of light in ontology, the light-out effect of atomization is generated so that more light are projected from the light-emitting surface at the top of light guide plate.Display device provided in an embodiment of the present invention, product weight is lighter, meets the light-weighted requirement of display device.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of light guide plate and with the display device of the light guide plate.
Background technology
Currently, in display field, area source, side entering type light source hair are often formed by light guide plate combination side entering type light source
The light gone out enters light guide plate from the incidence surface of light guide plate side, using after the transmitting and diffusion of light guiding points on light guide plate from leading
The light-emitting surface of tabula rasa projects, to provide light needed for work to panel.
However, for the light source for making full use of LED to send out, its most of light is set to inject in light guide plate, light guide plate needs
Reach certain thickness, causes the thickness of display to increase, do not meet the development trend of present displays lightness.
Invention content
To solve the above-mentioned problems, the embodiment of the present invention provides a kind of light guide plate and a kind of display device.
To achieve the above object, a kind of light guide plate provided in an embodiment of the present invention is used for display device, the light guide plate packet
Ontology, the incidence surface positioned at the body side and the light-emitting surface positioned at the bodies top are included, gas is formed in the ontology
Bubble.
Above-mentioned light guide plate, the intrinsic bubble are uniformly distributed, a diameter of 0.1mm to 2mm of the bubble；It is described
The ratio between bubble and the volume of the ontology are 1:9 to 4:6.
Above-mentioned light guide plate, the ontology is interior to make light guide plate bubble in hollow structure with one；Perpendicular to
On the direction of the light-emitting surface, the bubble is rounded or rectangle, the bubble are set at the intrinsic center.
Above-mentioned light guide plate, the light guide plate have the reflecting surface being oppositely arranged with the light-emitting surface；In the bubble
Heart line is centrally located between the reflecting surface and the light-emitting surface, or is biased to reflecting surface direction；In the reflection
Between face and the light-emitting surface, the thickness of the bubble is 0.1mm to 3mm.
Above-mentioned light guide plate, the light guide plate have the reflecting surface being oppositely arranged with the light-emitting surface；It is described intrinsic
Bubble is in the same plane, and the plane is parallel with the light-emitting surface, and close to the reflecting surface far from the light-emitting surface；Institute
State a diameter of 0.3mm to 1.5mm of bubble；The ratio between volume of the bubble and ontology is 1:9 to 3:7.
Above-mentioned light guide plate, the light guide plate have the reflecting surface being oppositely arranged with the light-emitting surface；It is described intrinsic
Bubble is between the light-emitting surface and reflecting surface in two planes being mutually parallel；Two planes and the light-emitting surface and institute
It is parallel to state reflecting surface；Two planes are close to the reflecting surface far from the light-emitting surface；A diameter of 0.1mm of the bubble is extremely
1.5mm；The ratio between volume of the bubble and ontology is 1:9 to 4:6.
Above-mentioned light guide plate, the ontology include central area and the peripheral region around the central area, are located at institute
State peripheral region bubble ratio be located at the central area bubble it is intensive；A diameter of 0.1mm to 1.5mm of the bubble；Institute
It is in symmetric figure or special graph to state central area；
The bubble volume accounting of the peripheral region is 2:8 to 3:7；The bubble volume accounting of the central area is 1:9
To 2:8.
Above-mentioned light guide plate, it is 2 to 10mm that bubble keeps spacing, the spacing with the incidence surface in the ontology；Institute
It is rectangular or round to state central area.
To achieve the above object, the embodiment of the present invention provides a kind of light guide plate, and the light guide plate includes：
Ontology is formed with the bubble for loss of weight and atomization light in the ontology；
Incidence surface, the incidence surface are located at the body side；And
Light-emitting surface, the light-emitting surface are located at the bodies top；
The bubble is formed by foaming agent.
To achieve the above object, a kind of display device provided in an embodiment of the present invention, including described in any one of the above
Light guide plate.
Compared with prior art, bubble, the setting of bubble are formed in the ontology of light guide plate provided in an embodiment of the present invention
The weight of light guide plate can be mitigated in the case where not reducing light guide plate.The thickness of light guide plate is constant, and luminescence unit is sent out
Most of light can still inject light guide plate, bubble is arranged in the ontology of light guide plate.The present invention passes through in light guide plate
It is formed with bubble in ontology, the weight of light guide plate can be mitigated in the case where not reducing light guide plate.In addition, bubble can be with
The total reflection for destroying light in ontology, generates the light-out effect of atomization so that light extraction of more light from the top of light guide plate
It uniformly projects in face.Display device provided in an embodiment of the present invention, product weight is lighter, meets the light-weighted requirement of display device.
In addition the bubble in light guide plate plays the role of being atomized light so that light-emitting surface formation is more atomized uniform light source, and it is equal to improve display
Even effect.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the embodiment of the present invention
A part, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.
In the accompanying drawings：
Fig. 1 is the schematic diagram of the display device in an exemplary embodiment of the invention；
Fig. 2 is the schematic diagram of the display device in yet another exemplary embodiment of the present invention；
Fig. 3 is the schematic diagram of the display device in another exemplary embodiment of the present invention；
Fig. 4 is the schematic diagram of the display device in another exemplary embodiment of the present invention；
Fig. 5 is the schematic diagram of the display device in the another exemplary embodiment of the present invention；
The schematic diagram of light guide plate in the display device that Fig. 6 is Fig. 5；
Fig. 7 is the schematic diagram of the display device in another exemplary embodiment of the present invention；
The schematic diagram of light guide plate in the display device that Fig. 8 is Fig. 7.
Reference numeral：
100a- display devices；
10a- light source modules；11a- luminescence units；12a- circuit boards；20a- backboards；
30a- light guide plates；31a- ontologies；311a- bubbles；
32a- incidence surfaces；33a- light-emitting surfaces；34a- reflectings surface.
100b- display devices；
10b- light source modules；11b- luminescence units；12b- circuit boards；20b- backboards；
30b- light guide plates；31b- ontologies；311b- bubbles；
32b- incidence surfaces；33b- light-emitting surfaces；34b- reflectings surface.
100c- display devices；
10c- light source modules；11c- luminescence units；12c- circuit boards；20c- backboards；
30c- light guide plates；31c- ontologies；311c- bubbles；
32c- incidence surfaces；33c- light-emitting surfaces；34c- reflectings surface.
100d- display devices；
10d- light source modules；11d- luminescence units；12d- circuit boards；20d- backboards；
30d- light guide plates；31d- ontologies；311d- bubbles；
32d- incidence surfaces；33d- light-emitting surfaces；34d- reflectings surface.
100e- display devices；
10e- light source modules；11e- luminescence units；12e- circuit boards；20e- backboards；
30e- light guide plates；31e- ontologies；311e- bubbles；The central areas 312e-；313e- peripheral region；
32e- incidence surfaces；33e- light-emitting surfaces；34e- reflectings surface；
100f- display devices；
10f- light source modules；11f- luminescence units；12f- circuit boards；20f- backboards；
30f- light guide plates；31f- ontologies；311f- bubbles；The central areas 312f-；313f- peripheral region；
32f- incidence surfaces；33f- light-emitting surfaces；34f- reflectings surface.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The display device of the embodiment of the present invention can be liquid crystal display panel, OLED (Organic Light Emitting
Diode, Organic Light Emitting Diode) display device, QLED (Quantum Dot Light Emitting Diode, quantum dot hair
Optical diode) display device, curved-surface display device or other display devices.
The embodiment of the present invention provides a kind of display device 100a, as shown in Figure 1, display device 100a includes light source module
10a, backboard 20a and light guide plate 30a.
Light guide plate 30a includes ontology 31a, the incidence surface 32a positioned at the sides ontology 31a, the light extraction at the top of ontology 32a
Face 33a and positioned at the bottoms ontology 31a and the reflecting surface 34a that is oppositely arranged with light-emitting surface 33a, and reflecting surface in one embodiment
34a is provided with multiple sites or is fitted with reflector plate.Incidence surface 32a can be only positioned at the side of ontology 31a, can also be symmetrical
It is distributed in the opposite sides of ontology 31a, it might even be possible to be on the side of the surrounding of ontology 31a.Light source module 10a includes neighbouring leads
The luminescence unit 11a of the tabula rasa incidence surface 32a settings and circuit board 12a for supporting luminescence unit 11a.Backboard 20a, which is set to, to be led
The bottom of tabula rasa 30a, backboard 20a are mirror surface treatment towards the surface of light guide plate 30a, and self-reflection face 34a is mapped to backboard 20a
On light be reflected on the light-emitting surface 33a of light guide plate 30a.Mirror surface treatment refers to that the surface is smooth, and light is incident on the surface
Mirror-reflection can occur greatly afterwards.
It is formed with bubble 311a in the embodiment of the present invention in the ontology 31a of light guide plate 30a, the setting of bubble 311a can be
In the case of not reducing light guide plate 30a thickness, mitigate the weight of light guide plate 30a.The thickness of light guide plate 30a is constant, luminescence unit
Most of light that 11a is sent out can still inject light guide plate 30a, and bubble 311a is arranged in ontology 31a, will not be greatly
Reduce the structural strength of light guide plate 30a.In addition, bubble 311a can destroy the total reflection of light in ontology 31a, atomization is generated
Light-out effect so that more light are uniformly projected from the light-emitting surface 33a at the top of light guide plate 30a.Use light guide plate 30a's
The weight of display device 100a is also effectively reduced.
There can be multiple equally distributed bubble 311a in ontology 31a as shown in Figure 1.Bubble in ontology 31a
The diameter range of 311a is 0.1mm to 2mm, the weight set that can specifically reduce according to the thickness and needs of light guide plate 30a.Example
Such as, when the thickness of light guide plate 30a is 4mm, the diameter of bubble 311a can be 0.5mm；When light guide plate 30a thickness is 6mm, gas
The diameter for steeping 311a can be 0.8mm；When light guide plate 30a thickness 9mm, the diameter of bubble 311a can be 1.5mm.
The space that bubble 311a is occupied in ontology 31a greatly influences the dead weight of light guide plate 30a, when the weight that needs reduce
When amount is smaller, the total volume of bubble 311a can be smaller；When the weight for needing to reduce is larger, the total volume of bubble 311a can
With larger, but in order to ensure that there is light guide plate 30a certain intensity, the total volume of bubble 311a should not be too large.In the present embodiment,
The ratio between volume of bubble 311a and ontology 31a ranging from 1:9 to 4:6.For example, when needing small size loss of weight, bubble 311a and sheet
The ratio between volume of body 31a can be 2:8；When needing substantially loss of weight, the ratio between volume of bubble 311a and ontology 31a can be 3:
7。
The light guide plate 30a of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30a, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311a.With PMMA, (Polymethylmethacrylate gathers light guide plate 30a materials
Methyl methacrylate) or the polymer materials such as transparent PC (Polycarbonate, makrolon) be advisable, so as to lead
In the shaping manufacture process of tabula rasa 30a, foaming agent and polymer material are uniformly mixed in the ontology 31a of light guide plate 30a
Form equally distributed bubble 311a.
In the another embodiment of light guide plate of the present invention and display device, as shown in Fig. 2, display device 100b includes light source
Module 10b, backboard 20b and light guide plate 30b.
Light guide plate 30b includes ontology 31b, the incidence surface 32b positioned at the sides ontology 31b, the light extraction at the top of ontology 32b
Face 33b and positioned at the bottoms ontology 31b and the reflecting surface 34b that is oppositely arranged with light-emitting surface 33b.Incidence surface 32b can be only positioned at this
The side of body 31b can also be symmetrically distributed in the opposite sides of ontology 31b, it might even be possible to be the side of the surrounding of ontology 31b
On.Light source module 10b includes the luminescence unit 11b of the incidence surface 32b settings of neighbouring light guide plate 30b and supports the luminescence unit
The circuit board 12b of 11b.Backboard 20b is set to the bottom of light guide plate 30b, backboard 20b towards the surface of light guide plate 30b be minute surface
Processing, the 34b light being mapped on backboard 20b in self-reflection face is reflected on the light-emitting surface 33b of light guide plate 30b.Mirror surface treatment
Refer to that the surface is smooth, light, which is incident on behind the surface, can occur greatly mirror-reflection.
It is formed with bubble 311b in the embodiment of the present invention in the ontology 31b of light guide plate 30b, the setting of bubble 311b can be
In the case of not reducing light guide plate 30b thickness, mitigate the weight of light guide plate 30b.The thickness of light guide plate 30b is constant, luminescence unit
Most of light that 11b is sent out can still inject light guide plate 30b, and bubble 311b is arranged in ontology, will not greatly drop
The structural strength of low light guide plate 30b.In addition, bubble 311b can destroy the total reflection of light in ontology 31b, going out for atomization is generated
Light effect so that more light are uniformly projected from the light-emitting surface 33b at the top of light guide plate 30b.Use the aobvious of light guide plate 30b
The weight of showing device 100b is also effectively reduced.
Bubble 311b there are one can having in ontology 31b, i.e. light guide plate 30b form hollow structure.Perpendicular to reflecting surface
On the direction of 34b or light-emitting surface 33b, the bubble 311b can rounded or rectangle, be set at the center in ontology 31b.Example
Such as, the length of light guide plate 30b is 400mm, width 300mm, if bubble 311b is rounded, which can be
50mm to 100mm, such as 80mm；If bubble 311b is rectangular, the length of rectangle bubble 311b can be 80mm, width
For 60mm.
The center line of bubble 311b can be centrally located between reflecting surface 34b and light-emitting surface 33b, can also be to reflecting surface
The directions 34b bias.
The thickness of bubble is 0.1mm to 3mm, and the thickness of concrete foundation light guide plate 30b determines, and is set to reflecting surface 34b
Bubble 311b between light-emitting surface 33b, and should keeping at a distance for reflecting surface 34b and light-emitting surface 33b, so that its light guide plate
30b still has enough intensity.When the thickness of light guide plate 30b is 4mm, the thickness of bubble 311b is 0.5mm to 2mm, such as
1mm。
The light guide plate 30b of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30b, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311b.Light guide plate 30b materials are advisable with polymer materials such as PMMA or transparent PC.
In another embodiment of light guide plate of the present invention and display device, as shown in figure 3, display device 100c includes light source
Module 10c, backboard 20c, light guide plate 30c and optical diaphragm group.
Light guide plate 30c includes ontology 31c, the incidence surface 32c positioned at the sides ontology 31c, the light extraction at the top of ontology 32c
Face 33c and positioned at the bottoms ontology 31c and the reflecting surface 34c that is oppositely arranged with light-emitting surface 33c.Incidence surface 32c can be only positioned at this
The side of body 31c can also be symmetrically distributed in the both sides of ontology 31c, it might even be possible to be on the side of the surrounding of ontology 31c.Light
Source module 10c includes the luminescence unit 11c of the incidence surface 32c settings of neighbouring light guide plate 30c and supports the electricity of luminescence unit 11c
Road plate 12c, luminescence unit 11c is LED in one embodiment, and corresponding light source module 10c is LED light bar.Backboard 20c is set
It is placed in the bottom of light guide plate 30c, backboard 20c is mirror surface treatment towards the surface of light guide plate 30c, and self-reflection face 34c is mapped to
Light on backboard 20c is reflected on the light-emitting surface 33c of light guide plate 30c.Mirror surface treatment refers to that the surface is smooth, and light is incident on
Mirror-reflection can occur behind the surface greatly.In addition, optical diaphragm group (not indicated in Fig. 3) is located at the light extraction of light guide plate 30c
The top of face 33c, such as the optical diaphragms such as including diffusion sheet.
It is formed with bubble 311c in the embodiment of the present invention in the ontology 31c of light guide plate 30c, the setting of bubble 311c can be
In the case of not reducing light guide plate 30c thickness, mitigate the weight of light guide plate 30c.The thickness of light guide plate 30c is constant, luminescence unit
Most of light that 11c is sent out can still inject light guide plate 30c, and bubble 311c is arranged in ontology, will not greatly drop
The structural strength of low light guide plate 30c.In addition, bubble 311c can destroy the total reflection of light in ontology 31c, going out for atomization is generated
Light effect so that more light are uniformly projected from the light-emitting surface 33c at the top of light guide plate 30c.Use the aobvious of light guide plate 30c
The weight of showing device 100c is also effectively reduced.
In the present embodiment, bubble 311c is on one layer between light-emitting surface 33c and reflecting surface 34c, multiple bubble 311c
It is located substantially on same plane, the plane is parallel with reflecting surface 34c and light-emitting surface 33c, and close to reflecting surface 34c far from light-emitting surface
33c.Bubble 311c is arranged close to reflecting surface 34c so that the light of ontology 31c inner total reflections is when close to reflecting surface 34c by gas
It steeps 311c scatterings and is projected from light-emitting surface 33c, improve the luminous flux on light-emitting surface 33c.
The diameter range of bubble 311c in ontology 31c is 0.3mm to 1.5mm, specifically can be according to the thickness of light guide plate 30c
The weight set that degree and needs reduce.For example, when the thickness of light guide plate 30c is 5mm, the diameter of bubble 311c can be
0.4mm；When light guide plate 30c thickness is 6mm, the diameter of bubble 311c can be 1.0mm；When light guide plate 30c thickness 10mm, bubble
The diameter of 311c can be 1.3mm.
The space that bubble 311c is occupied in ontology 31c greatly influences the dead weight of light guide plate 30c, when the weight that needs reduce
When amount is smaller, the total volume of bubble 311c can be smaller；When the weight for needing to reduce is larger, the total volume of bubble 311c can
With larger, but in order to ensure that there is light guide plate 30c certain intensity, the total volume of bubble 311c should not be too large.In the present embodiment,
The ratio between volume of bubble 311c and ontology 31c ranging from 1:9 to 3:7.For example, when needing small size loss of weight, bubble 311c and sheet
The ratio between volume of body 31c can be 1:9；When needing substantially loss of weight, the ratio between volume of bubble 311c and ontology 31c can be 2:
8。
The light guide plate 30c of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30c, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311c.Light guide plate 30c materials are advisable with polymer materials such as PMMA or transparent PC.
In another embodiment of light guide plate of the present invention and display device, as shown in figure 4, display device 100d includes light source
Module 10d, backboard 20d, light guide plate 30d and optical diaphragm group.
Light guide plate 30d includes ontology 31d, the incidence surface 32d positioned at the sides ontology 31d, the light extraction at the top of ontology 32d
Face 33d and positioned at the bottoms ontology 31d and the reflecting surface 34d that is oppositely arranged with light-emitting surface 33d.Incidence surface 32d can be only positioned at this
The side of body 31d can also be symmetrically distributed in the both sides of ontology 31d, it might even be possible to be on the side of the surrounding of ontology 31d.Light
Source module 10d includes the luminescence unit 11d of the incidence surface 32d settings of neighbouring light guide plate 30d and supports the electricity of luminescence unit 11d
Road plate 12d.Backboard 20d is set to the bottom of light guide plate 30d, backboard 20d towards the surface of light guide plate 30d be mirror surface treatment, with
The 34d light being mapped on backboard 20d in self-reflection face is reflected on the light-emitting surface 33d of light guide plate 30d.Mirror surface treatment refers to the table
Face is smooth, and light, which is incident on behind the surface, can occur greatly mirror-reflection.In addition, optical diaphragm group (does not indicate) position in Fig. 4
In the top of the light-emitting surface 33d of light guide plate 30d, such as the optical diaphragms such as including diffusion sheet.
It is formed with bubble 311d in the embodiment of the present invention in the ontology 31d of light guide plate 30d, the setting of bubble 311d can be
In the case of not reducing light guide plate 30d thickness, mitigate the weight of light guide plate 30d.The thickness of light guide plate 30d is constant, luminescence unit
Most of light that 11d is sent out can still inject light guide plate 30d, and bubble 311d is arranged in ontology, will not greatly drop
The structural strength of low light guide plate 30d.In addition, bubble 311d can destroy the total reflection of light in ontology 31d, going out for atomization is generated
Light effect so that more light are uniformly projected from the light-emitting surface 33d at the top of light guide plate 30d.Use the aobvious of light guide plate 30d
The weight of showing device 100d is also effectively reduced.
In the present embodiment, bubble 311d is in two layers between light-emitting surface 33d and reflecting surface 34d, multiple bubble 311d
It is located in the plane that two are mutually parallel, two planes being mutually parallel are parallel with reflecting surface 34d and light-emitting surface 33d, and two
The whole close reflecting surface 34d of plane being mutually parallel is far from light-emitting surface 33d.Bubble 311d is arranged close to reflecting surface 34d so that this
The light of body 31d inner total reflections is scattered by bubble 311d when close to reflecting surface 34d and is projected from light-emitting surface 33d, improves light extraction
Luminous flux on the 33d of face.
The diameter range of bubble 311d in ontology 31d is 0.1mm to 1.5mm, specifically can be according to the thickness of light guide plate 30d
The weight set that degree and needs reduce.For example, when the thickness of light guide plate 30d is 5mm, the diameter of bubble 311d can be
0.5mm；When light guide plate 30d thickness is 6mm, the diameter of bubble 311d can be 1.0mm；When light guide plate 30d thickness 10mm, bubble
The diameter of 311d can be 1.2mm.
The space that bubble 311d is occupied in ontology 31d greatly influences the dead weight of light guide plate 30d, when the weight that needs reduce
When amount is smaller, the total volume of bubble 311d can be smaller；When the weight for needing to reduce is larger, the total volume of bubble 311d can
With larger, but in order to ensure that there is light guide plate 30d certain intensity, the total volume of bubble 311d should not be too large.In the present embodiment,
The ratio between volume of bubble 311d and ontology 31d ranging from 1:9 to 4:6.For example, when needing small size loss of weight, bubble 311d and sheet
The ratio between volume of body 31d can be 1:9；When needing substantially loss of weight, the ratio between volume of bubble 311d and ontology 31d can be 2:
8。
The light guide plate 30d of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30d, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311d.Light guide plate 30d materials are advisable with polymer materials such as PMMA or transparent PC.
In the another embodiment of light guide plate of the present invention and display device, as shown in figure 5, display device 100e includes light source
Module 10e, backboard 20e, light guide plate 30e and optical diaphragm group.
Light guide plate 30e includes ontology 31e, the incidence surface 32e positioned at the sides ontology 31e, the light extraction at the top of ontology 32e
Face 33e and positioned at the bottoms ontology 31e and the reflecting surface 34e that is oppositely arranged with light-emitting surface 33e.Incidence surface 32e can be only positioned at this
The side of body 31e can also be symmetrically distributed in the both sides of ontology 31e, it might even be possible to be on the side of the surrounding of ontology 31e.Light
Source module 10e includes the luminescence unit 11e of the incidence surface 32e settings of neighbouring light guide plate 30e and supports the electricity of luminescence unit 11e
Road plate 12e.Backboard 20e is set to the bottom of light guide plate 30e, backboard 20e towards the surface of light guide plate 30e be mirror surface treatment, with
The 34e light being mapped on backboard 20e in self-reflection face is reflected on the light-emitting surface 33e of light guide plate 30e.Mirror surface treatment refers to the table
Face is smooth, and light, which is incident on behind the surface, can occur greatly mirror-reflection.In addition, optical diaphragm group (does not indicate) position in Fig. 5
In the top of the light-emitting surface 33e of light guide plate 30e, such as the optical diaphragms such as including diffusion sheet.
It is formed with bubble 311e in the embodiment of the present invention in the ontology 31e of light guide plate 30e, the setting of bubble 311e can be
In the case of not reducing light guide plate 30e thickness, mitigate the weight of light guide plate 30e.The thickness of light guide plate 30e is constant, luminescence unit
Most of light that 11e is sent out can still inject light guide plate 30e, and bubble 311e is arranged in ontology, will not greatly drop
The structural strength of low light guide plate 30e.In addition, bubble 311e can destroy the total reflection of light in ontology 31e, going out for atomization is generated
Light effect so that more light are uniformly projected from the light-emitting surface 33e at the top of light guide plate 30e.Use the aobvious of light guide plate 30e
The weight of showing device 100e is also effectively reduced.
In conjunction with Fig. 5 and Fig. 6, ontology 31e includes central area 312e and the peripheral region 313e around central area 312e,
Especially smaller in the thickness of light guide plate 30e, the bubble 311e quantity on ontology 31e can significantly reduce light guide plate 30e
Intensity when, the bubble 311e more crypto sets that the bubble 311e of peripheral region 313e can be than central area 312e make center
Domain 312e has higher intensity than peripheral region 313e.
Central area 312e can be symmetric figure or special graph, and symmetric figure is, for example, round or rectangle.This implementation
In example, central area 312e is rectangular.
The diameter range of bubble 311e in ontology 31e is 0.1mm to 1.5mm, specifically can be according to the thickness of light guide plate 30e
The weight set that degree and needs reduce.For example, when the thickness of light guide plate 30e is 5mm, the diameter of bubble 311e can be
0.5mm；When light guide plate 30e thickness is 6mm, the diameter of bubble 311e can be 1.0mm；When light guide plate 30e thickness 10mm, bubble
The diameter of 311e can be 1.2mm.
The space that bubble 311e is occupied in ontology 31e greatly influences the dead weight of light guide plate 30e, when the weight that needs reduce
When amount is smaller, the total volume of bubble 311e can be smaller；When the weight for needing to reduce is larger, the total volume of bubble 311e can
With larger, but in order to ensure that there is light guide plate 30e certain intensity, the total volume of bubble 311e should not be too large.In the present embodiment,
The ratio between volume of bubble 311e and ontology 31e ranging from 1:9 to 4:6.Specifically, the bubble volume accounting of central area 312e can
Think 1:The bubble volume accounting of 9, peripheral region 313e can be 3:7.For example, when needing small size loss of weight, central area
The bubble volume accounting of 312e can be 1:The bubble volume accounting of 9, peripheral region 313e can be 2:8；When needing substantially to subtract
When weight, the bubble volume accounting of central area 312e can be 2:The bubble volume accounting of 8, peripheral region 313e can be 3:7.
Bubble 311e is located in ontology 31e, and it is 2 to 10mm that bubble 311 and incidence surface 32e, which keeps spacing, spacing dimension, example
Such as 5mm.
Compared with prior art, in the embodiment of the present invention, due to being formed with bubble in the ontology 31e of light guide plate 30e
311e alleviates light guide plate 30e in the case where not reducing light guide plate 30e thickness and light guide plate 30e intensity not being greatly lowered
Weight.So that the also more lightness of the display device 100e with light guide plate 30e.And bubble 311e can be used as scattering
Structure is scattered light.
The light guide plate 30e of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30e, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311e.Light guide plate 30e materials are advisable with polymer materials such as PMMA or transparent PC.
In another embodiment of light guide plate of the present invention and display device, as shown in fig. 7, display device 100f includes light source
Module 10f, backboard 20f, light guide plate 30f and optical diaphragm group.
Light guide plate 30f includes ontology 31f, the incidence surface 32f positioned at the sides ontology 31f, the light extraction at the top of ontology 32f
Face 33f and positioned at the bottoms ontology 31f and the reflecting surface 34f that is oppositely arranged with light-emitting surface 33f.Incidence surface 32f can be only positioned at this
The side of body 31f can also be symmetrically distributed in the both sides of ontology 31f, it might even be possible to be on the side of the surrounding of ontology 31f.Light
Source module 10f includes the luminescence unit 11f of the incidence surface 32f settings of neighbouring light guide plate 30f and supports the electricity of luminescence unit 11f
Road plate 12f.Backboard 20f is set to the bottom of light guide plate 30f, backboard 20f towards the surface of light guide plate 30f be mirror surface treatment, with
The 34f light being mapped on backboard 20f in self-reflection face is reflected on the light-emitting surface 33f of light guide plate 30f.Mirror surface treatment refers to the table
Face is smooth, and light, which is incident on behind the surface, can occur greatly mirror-reflection.In addition, optical diaphragm group (does not indicate) position in Fig. 7
In the top of the light-emitting surface 33f of light guide plate 30f, such as the optical diaphragms such as including diffusion sheet.
It is formed with bubble 311f in the embodiment of the present invention in the ontology 31f of light guide plate 30f, the setting of bubble 311f can be
In the case of not reducing light guide plate 30f thickness, mitigate the weight of light guide plate 30f.The thickness of light guide plate 30f is constant, luminescence unit
Most of light that 11f is sent out can still inject light guide plate 30f, and bubble 311f is arranged in ontology, will not greatly drop
The structural strength of low light guide plate 30f.In addition, bubble 311f has scattering function, being all-trans for light in ontology 31f can be destroyed
It penetrates, generates the light-out effect of atomization so that more light are uniformly projected from the light-emitting surface 33f at the top of light guide plate 30f.It uses
The weight of the display device 100f of light guide plate 30f is also effectively reduced.
In conjunction with Fig. 7 and Fig. 8, ontology 31f includes central area 312f and the peripheral region 313f around central area 312f,
Especially smaller in the thickness of light guide plate 30f, the bubble 311f quantity on ontology 31f can significantly reduce light guide plate 30f
Intensity when, the bubble 311f more crypto sets that the bubble 311f of peripheral region 313f can be than central area 312f make center
Domain 312f has higher intensity than peripheral region 313f.
Central area 312f can be symmetric figure or special graph, symmetric figure such as circle or rectangle.The present embodiment
In, central area 312f is rounded.
The diameter range of bubble 311f in ontology 31f is 0.2mm to 1.5mm, specifically can be according to the thickness of light guide plate 30f
The weight set that degree and needs reduce.For example, when the thickness of light guide plate 30f is 5mm, the diameter of bubble 311f can be
0.4mm；When light guide plate 30f thickness is 6mm, the diameter of bubble 311f can be 1.2mm；When light guide plate 30f thickness 10mm, bubble
The diameter of 311f can be 1.4mm.
The space that bubble 311f is occupied in ontology 31f greatly influences the dead weight of light guide plate 30f, when the weight that needs reduce
When amount is smaller, the total volume of bubble 311f can be smaller；When the weight for needing to reduce is larger, the total volume of bubble 311f can
With larger, but in order to ensure that there is light guide plate 30f certain intensity, the total volume of bubble 311f should not be too large.In the present embodiment,
The ratio between volume of bubble 311f and ontology 31f ranging from 1:9 to 4:6.Specifically, the bubble volume accounting of central area 312f can
Think 1:The bubble volume accounting of 9, peripheral region 313f can be 3:7.For example, when needing small size loss of weight, central area
The bubble volume accounting of 312f can be 1:The bubble volume accounting of 9, peripheral region 313f can be 2:8；When needing substantially to subtract
When weight, the bubble volume accounting of central area 312f can be 2:The bubble volume accounting of 8, peripheral region 313f can be 3:7.
Compared with prior art, in the embodiment of the present invention, due to being formed with bubble in the ontology 31f of light guide plate 30f
311f alleviates light guide plate 30f in the case where not reducing light guide plate 30f thickness and light guide plate 30f intensity not being greatly lowered
Weight.So that the also more lightness of the display device 100f with light guide plate 30f.
The light guide plate 30f of the embodiment of the present invention, in the shaping manufacture process of light guide plate 30f, inside light guide panel material
Suitable foaming agent is added, to generate bubble 311f.Light guide plate 30f materials are advisable with polymer materials such as PMMA or transparent PC.
Finally it is worth mentioning that the display device 100a-100f in previous embodiment is in addition to including light source die above-mentioned
Can also include this field except block 10a-10f, backboard 20a-20f, edge-type light guide plate 30a-30f even optical diaphragm group
Structure known to technical staff is such as glue frame, front frame, panel.
Above-described specific example has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Illustrate, it should be understood that the above is only a specific embodiment of the present invention, be not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of light guide plate, which is characterized in that the light guide plate includes：
Ontology is formed with bubble in the ontology；
Incidence surface, the incidence surface are located at the body side；And
Light-emitting surface, the light-emitting surface are located at the bodies top.
2. light guide plate according to claim 1, which is characterized in that the intrinsic bubble is uniformly distributed, the bubble
A diameter of 0.1mm to 2mm；The ratio between the bubble and the volume of the ontology are 1:9 to 4:6.
3. light guide plate according to claim 1, which is characterized in that have in the ontology one to make during the light guide plate is in
The bubble of hollow structure；On the direction of the light-emitting surface, the bubble is rounded or rectangle, the bubble are set to institute
It states at intrinsic center.
4. light guide plate according to claim 3, which is characterized in that the light guide plate has to be oppositely arranged with the light-emitting surface
Reflecting surface；The center line of the bubble is centrally located between the reflecting surface and the light-emitting surface, or to the reflection
Face direction biases；Between the reflecting surface and the light-emitting surface, the thickness of the bubble is 0.1mm to 3mm.
5. light guide plate according to claim 1, which is characterized in that the light guide plate has to be oppositely arranged with the light-emitting surface
Reflecting surface；The intrinsic bubble is in the same plane, and the plane is parallel with the light-emitting surface, and close to described anti-
Face is penetrated far from the light-emitting surface；A diameter of 0.3mm to 1.5mm of the bubble；The ratio between volume of the bubble and ontology is 1:9
To 3:7.
6. light guide plate according to claim 1, which is characterized in that the light guide plate has to be oppositely arranged with the light-emitting surface
Reflecting surface；The intrinsic bubble is between the light-emitting surface and reflecting surface in two planes being mutually parallel；Two institutes
It is parallel with the light-emitting surface and the reflecting surface to state plane；Two planes are close to the reflecting surface far from the light-emitting surface；Institute
State a diameter of 0.1mm to 1.5mm of bubble；The ratio between volume of the bubble and ontology is 1:9 to 4:6.
7. light guide plate according to claim 1, which is characterized in that the ontology include central area and surround the center
The peripheral region in region, the bubble that the central area is located at positioned at the bubble ratio of the peripheral region are intensive；The bubble
A diameter of 0.1mm to 1.5mm；The central area is in symmetric figure or special graph；
The bubble volume accounting of the peripheral region is 2:8 to 3:7；The bubble volume accounting of the central area is 1:9 to 2:
8。
8. light guide plate according to claim 7, which is characterized in that between bubble and the incidence surface are kept in the ontology
Away from the spacing is 2 to 10mm；The central area is rectangular or round.
9. a kind of light guide plate, which is characterized in that the light guide plate includes：
Ontology is formed with the bubble for loss of weight and atomization light in the ontology；
Incidence surface, the incidence surface are located at the body side；And
Light-emitting surface, the light-emitting surface are located at the bodies top；
The bubble is formed by foaming agent.
10. a kind of display device, which is characterized in that including light guide plate as described in any one of claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786441.7A CN108594358A (en) | 2018-07-17 | 2018-07-17 | Light guide plate and display device |
| PCT/CN2019/082293 WO2020015399A1 (en) | 2018-07-17 | 2019-04-11 | Light guide plate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786441.7A CN108594358A (en) | 2018-07-17 | 2018-07-17 | Light guide plate and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108594358A true CN108594358A (en) | 2018-09-28 |
Family
ID=63617852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810786441.7A Pending CN108594358A (en) | 2018-07-17 | 2018-07-17 | Light guide plate and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108594358A (en) |
| WO (1) | WO2020015399A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015399A1 (en) * | 2018-07-17 | 2020-01-23 | 惠科股份有限公司 | Light guide plate and display device |
| WO2020015329A1 (en) * | 2018-07-17 | 2020-01-23 | 惠科股份有限公司 | Light guide plate and display device |
| CN115128716A (en) * | 2022-05-25 | 2022-09-30 | 广东瑞捷光电股份有限公司 | Novel foaming diffusion plate structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117014A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Mold for optical plate and manufacturing method thereof, and optical plate and manufacturing method thereof |
| CN105093387A (en) * | 2015-07-31 | 2015-11-25 | 深圳市华星光电技术有限公司 | Light guide panel, backlight module group and display device |
| CN205299407U (en) * | 2016-01-18 | 2016-06-08 | 潍坊星美电子科技有限公司 | High mixed light light guide plate of LED lens |
| CN108267810A (en) * | 2018-03-02 | 2018-07-10 | 深圳创维－Rgb电子有限公司 | A kind of light guide plate, backlight module and display equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694923A (en) * | 1991-07-25 | 1994-04-08 | Ono Gijutsu Kenkyusho:Kk | Thin-walled light box |
| CN108594358A (en) * | 2018-07-17 | 2018-09-28 | 惠科股份有限公司 | Light guide plate and display device |
| CN108873152B (en) * | 2018-07-17 | 2021-04-27 | 惠科股份有限公司 | Manufacturing method of light guide plate and manufacturing method of display device |
-
2018
- 2018-07-17 CN CN201810786441.7A patent/CN108594358A/en active Pending
-
2019
- 2019-04-11 WO PCT/CN2019/082293 patent/WO2020015399A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117014A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Mold for optical plate and manufacturing method thereof, and optical plate and manufacturing method thereof |
| CN105093387A (en) * | 2015-07-31 | 2015-11-25 | 深圳市华星光电技术有限公司 | Light guide panel, backlight module group and display device |
| CN205299407U (en) * | 2016-01-18 | 2016-06-08 | 潍坊星美电子科技有限公司 | High mixed light light guide plate of LED lens |
| CN108267810A (en) * | 2018-03-02 | 2018-07-10 | 深圳创维－Rgb电子有限公司 | A kind of light guide plate, backlight module and display equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015399A1 (en) * | 2018-07-17 | 2020-01-23 | 惠科股份有限公司 | Light guide plate and display device |
| WO2020015329A1 (en) * | 2018-07-17 | 2020-01-23 | 惠科股份有限公司 | Light guide plate and display device |
| CN115128716A (en) * | 2022-05-25 | 2022-09-30 | 广东瑞捷光电股份有限公司 | Novel foaming diffusion plate structure |
| CN115128716B (en) * | 2022-05-25 | 2024-01-02 | 广东瑞捷新材料股份有限公司 | Novel foaming diffusion plate structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020015399A1 (en) | 2020-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11126034B2 (en) | Under-screen optical fingerprint recognition system, backlight module, display screen, and electronic device | |
| CN102998841B (en) | Display substrate and display device with display substrate | |
| CN108594358A (en) | Light guide plate and display device | |
| US8057056B2 (en) | Light guide plates and backlight module | |
| CN102597605B (en) | Surface light source apparatus and use its display unit | |
| CN101206280A (en) | Light guide board and back light module unit using the same | |
| CN102042562A (en) | Light conducting board and back light module | |
| CN102798908B (en) | Diffuser plate, direct-type backlight module and display device | |
| CN101936489A (en) | Backlight module and optical assembly thereof | |
| US9028128B2 (en) | Side-edge backlight module | |
| CN111913320A (en) | Backlight module and display device | |
| CN104296008A (en) | Backlight module and display device | |
| CN101555997A (en) | Led light source device | |
| CN201218442Y (en) | Backlight module and LCD device containing the same | |
| CN108873152A (en) | The production method of the production method and display device of light guide plate | |
| CN102207566B (en) | Prism sheet, back light module unit with prism sheet and liquid crystal display (LCD) device | |
| US9477030B2 (en) | Backlight unit and display device | |
| CN103925522A (en) | Backlight module and display device | |
| CN202330747U (en) | Prism sheet, backlight module with prism sheet, and liquid crystal display device | |
| CN201954377U (en) | Direct illumination-type ultrathin LED backlight module and display terminal | |
| CN209311728U (en) | Light guide plate and display device | |
| CN101509987A (en) | Light guide board and back light module unit using the light guide board | |
| CN201779554U (en) | LED back light module | |
| US20150205165A1 (en) | Direct Backlight Module | |
| US20130336000A1 (en) | Led light bar and side-edge backlight module using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |