CN108445576A - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
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- CN108445576A CN108445576A CN201810180150.3A CN201810180150A CN108445576A CN 108445576 A CN108445576 A CN 108445576A CN 201810180150 A CN201810180150 A CN 201810180150A CN 108445576 A CN108445576 A CN 108445576A
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- Prior art keywords
- light
- area
- guide plate
- light guide
- display device
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Classifications
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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
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
Abstract
The invention discloses a kind of light guide plate, backlight module and display devices.Wherein, which includes：Incidence surface and the light-emitting surface adjacent with the incidence surface, the another side opposite with the light-emitting surface include along multiple first areas that first direction is intervally arranged and multiple second areas；The first area extends in a second direction with the second area；Wherein, the first area includes multiple light directing sites.The technical solution that the embodiment of the present invention is provided, pass through first area and the second area of being intervally arranged on light guide plate, it can realize interval light extraction, it is compared to the mode of Time-sharing control light source in the prior art, the display demand of display device in 3 d mode can it considerably easier and simpler be met, and the brightness of local light source can be increased, ensure light utilization efficiency, promotes 3D display effect.
Description
Technical field
The present embodiments relate to a kind of display technology field more particularly to light guide plate, backlight module and display devices.
Background technology
With the innovation of display technology, the display technology of intelligent display product is undergoing from plane to three-dimensional transition.
Stereoscopic display especially bore hole stereo technology has become the new development trend of display field, more and more to show that product starts
Integrate bore hole 3D display.Usually, the displaying principle of bore hole 3D display is by display panel and grating and other optical elements
The two images with parallax that plane is shown, are respectively supplied to the right and left eyes of observer, observer is closed by brain by combination
At perceiving 3D rendering.
In the research process for carrying out the present invention, inventor has found：With the development of bore hole 3D technology, cylindrical lenses formula
Cylindrical lenses by being set between display panel and light source by 3D display device, to improve resolution ratio, avoids when 2D is shown
The phenomenon that segmentation is generated to content.But often by Time-sharing control light source in the 3D display device of above-mentioned cylindrical lenses formula
Realize preferable 3D display, but which shows the light extraction for being separately controlled light source while coordinating display panel in difference
Moment shows that different pictures can be only achieved 3D effect, to the more demanding of light source and operates more complicated.
Invention content
An embodiment of the present invention provides a kind of light guide plate, backlight module and display devices, to solve existing cylindrical lenses
Formula 3D display device is to the more demanding of light source and operates the technical problems such as more complicated, promotes the display effect of 3D.
In a first aspect, an embodiment of the present invention provides a kind of light guide plate, which includes：Incidence surface and with it is described enter
The adjacent light-emitting surface of smooth surface, the another side opposite with the light-emitting surface include along multiple first areas that first direction is intervally arranged
With multiple second areas；The first area extends in a second direction with the second area；Wherein, the first area packet
Include multiple light directing sites.
Further, each first area is of same size；Each second area it is of same size.
Further, the first area and the second area are strip region.
Further, the width of the second area is more than the width of the first area.
Further, the width of the second area is at least bigger by 20% than the width of the first area.
Further, the diameter of the light directing site be less than the first area in a second direction on width ten/
One.
Further, the first direction is vertical with the second direction.
Second aspect, the embodiment of the present invention additionally provide a kind of backlight module, the backlight module：Including at least one light source
And the light guide plate described in any one embodiment of the invention；Wherein, the light source is opposite with the incidence surface of the light guide plate sets
It sets.
The third aspect, the embodiment of the present invention additionally provide a kind of display device, which includes：Display panel regards
Scape resolution element and the backlight module as described in any one embodiment of the invention；Wherein, the what comes into a driver's resolution element setting
Between the backlight module and the display panel.
Further, the what comes into a driver's resolution element is set on the light-emitting surface of the light guide plate；Alternatively, the what comes into a driver's separation
Element is set to display panel close to the light guide plate side.
Further, the sum of width of the width of the first area and the second area in the display panel
Pixel unit it is of same size.
Further, the what comes into a driver's resolution element includes multiple cylindrical mirrors arranged along third direction, extended along fourth direction
Unit；The focal length of the cylindrical mirror unit is in the cylindrical mirror unit to the distance of the first area or the second area
Between 0.3 to 0.8 times.
Further, the third direction is parallel with the first direction；The fourth direction is flat with the second direction
Row.
Further, the 3 d display device further includes：Light modulating device is set to the what comes into a driver's resolution element and institute
Between stating light guide plate, alternatively, being set between the lens array film and display panel.
Further, the light modulating device be used for plane effect show and stereoscopic effect display when light source cut
It changes.
The technical solution that the embodiment of the present invention is provided passes through first area and the secondth area of being intervally arranged on light guide plate
Domain, you can slit is sent out by light guide plate, interval light extraction is realized, converts point light source or area source in light and dark area
Domain light can solve existing display device to the more demanding of light source and operate the technical problems such as more complicated, simpler
It is single easily to meet the display demand of display device in 3 d mode, and can avoid the light of wide-angle that from detaching member by what comes into a driver's
The lens bounce back of part comes, and increases the brightness of local light source, ensures light utilization efficiency, promotes 3D display effect.
Description of the drawings
In order to clearly illustrate the technical solution of exemplary embodiment of the present, below to required in description embodiment
The attached drawing to be used does a simple introduction.Obviously, the attached drawing introduced is a part of the embodiment of the invention to be described
Attached drawing, rather than whole attached drawings without creative efforts, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of light conducting plate structure schematic diagram that the embodiment of the present invention is provided；
Fig. 2 is a kind of structural schematic diagram for backlight module that the embodiment of the present invention is provided；
Fig. 3 is a kind of fundamental diagram for light guide plate that the embodiment of the present invention is provided；
Fig. 4 is a kind of structural schematic diagram for display device that the embodiment of the present invention is provided；
Fig. 5 is a kind of structural schematic diagram for what comes into a driver's resolution element that the embodiment of the present invention is provided；
Fig. 6 is a kind of fundamental diagram of display device provided in an embodiment of the present invention；
Fig. 7 is a kind of spectral energy distribution curve of display device provided in an embodiment of the present invention；
Fig. 8 is the spectral energy distribution curve of another display device provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
The structural schematic diagram for a kind of light guide plate 11 that Fig. 1 is provided by the embodiment of the present invention, as shown in Figure 1, the present embodiment
The light guide plate 11 provided includes：Incidence surface and the light-emitting surface adjacent with incidence surface, the another side opposite with light-emitting surface include
Along multiple first areas 110 that first direction x is intervally arranged and multiple second areas 111；First area 110 and second area
111 in a second direction y extend；Wherein, first area 110 includes multiple light directing sites.
Wherein, light directing site can be laser net point, be formed in the first area of light guide plate 11 110 by laser dotting recessed
Point；Or be roughened the first area 110 of light guide plate 11 using existing technique, form multiple light directing sites.When light source
After light enters light guide plate, since light is mapped to the small air of refractive index (optically thinner medium) by the big light guide plate of refractive index (optically denser medium)
Interface when, might have some light and be reflected back toward in light guide plate, be totally reflected, cannot form effective light extraction, therefore is logical
It crosses and multiple light directing sites is set in first area 110, change the light path of light by light directing site, so that generating full transmitting
Light be emitted again by light-emitting surface, can effectively increase the utilization rate of light emission rate and light, and pass through light directing site
Diffuse reflection effect enable to the light extraction of light guide plate more uniform.It is understood that the quantity and size of light directing site
Light emission rate can be had an impact.Therefore, in order to fully ensure that the utilization rate of light emission rate and light, the light directing site of first area need to
Rationally to be arranged, in invention the present embodiment, optional is that the diameter of light directing site is less than first area 110 along first direction x
Width 1/10th.
It should be noted that when being intervally arranged first area 110 and second area 111 on light guide plate 11, first direction x
It can vertically can not also be vertical with second direction y.Illustratively, optional for the ease of controlling light as in Fig. 1
It is first direction x vertical with second direction y.This is only the specific example rather than limitation of the present invention of the present invention.Having
When body designs, the relative angle of first direction x and second direction y can be configured according to actual demand.
The technical solution that the embodiment of the present invention is provided passes through first area 110 and of being intervally arranged on light guide plate 11
Two regions 111, you can slit is sent out by light guide plate 11, interval light extraction is realized, converts point light source or area source to bright
Area light between dark phase can solve existing display device and ask the more demanding of light source and the operation technologies such as more complicated
Topic, it considerably easier and simpler meets the display demand of display device in 3 d mode, and can avoid the light of wide-angle can quilt
The lens bounce back of what comes into a driver's resolution element comes, and increases the brightness of local light source, ensures light utilization efficiency, promotes 3D display effect.
Optionally, the width d of each first area 110 of light guide plate 111It is identical；The width d of each second area 1112It is identical.
Setting can also make the light extraction region overall distribution rule of light guide plate 11 in this way, and uniform strength is provided for 3 d display device
Light source.Illustratively, the first area 110 of light guide plate 11 and second area 111 can be disposed as strip region.
In order to increase the light intensity in 11 each light extraction region of light guide plate so that the light and shade contrast in each region is brighter
It is aobvious, to ensure light-out effect and stereo display effect after what comes into a driver's resolution element, optional to be, 11 second area of light guide plate
111 width d2More than the width d of first area 1101.Can be specifically the width d of second area 1112Than first area 110
Width d1It is at least big by 20%.The advantages of this arrangement are as follows being further ensured that corresponding with first area 110 in light guide plate 11
Each light in light extraction region can be reasonably divided, and crosstalk is reduced, and promote 3D effect.
It is to be appreciated that illustrate only the width d of 11 second area 111 of light guide plate in Fig. 12More than first area 110
Width d1The case where.In practical applications, the width d of second area 111 can be set according to actual demand2The first area and
110 width d1, such as second area 111 width d2With the width d of first area 1101It is equal.
Fig. 2 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention, as shown in Fig. 2, the backlight module
Including：Light guide plate 11 described at least one light source 10 and any one embodiment of the invention；Wherein, light source 10 and light guide plate
11 incidence surface is oppositely arranged.Wherein, light source 10 can be point light source, as that can be provided with multiple Light-emitting diode LED
Lamp bar or single light-emitting device etc..
The fundamental diagram for a kind of light guide plate 11 that Fig. 3 is provided by the embodiment of the present invention, in the back of the body of side entering type light source 10
In optical mode group, light guide plate 11 by side entering type light usually being converted to vertical direction light extraction.In the present embodiment, as shown in figure 3, working as
When light source 10 enters light guide plate 11 from side, the most light in light guide plate 11 is often all-trans when not comprising site
Penetrate, can not light extraction be similar to 3 D grating but since first area 110 may include densely arranged multiple light directing sites
Principle can generate diffusing reflection to the light being incident on site, the light-emitting angle of incident ray be changed simultaneously, so that leading
Light in tabula rasa 11 reflects away after being reflected from the first area 110 containing site, it is understood that is first area 110
It is equivalent to light extraction region.
Furthermore, it is contemplated that light source 10 is arranged in the side of light guide plate 11, the brightness of main view point when in order to increase 3D display, it can
Choosing is that the thickness of light guide plate 11 gradually increases along the direction far from light source 10, and the thickness of light guide plate 11 is along by close to sources in other words
It is gradually reduced on 10 direction, light source 10 is set to the relatively small side of thickness of light guide plate 11.The benefit being arranged in this way exists
In, by backlight module be applied to display device when can pass through highlight further promoted display device 3D display effect.
It should be noted that the backlight module of the present embodiment is illustratively including a light source 10 and along first direction x
Be intervally arranged the light guide plate 11 (Fig. 2 and Fig. 3 shown in) of first area 110 and second area 111, but a kind of only example,
In other embodiments of the invention, backlight module can also include optical film layers and the driving circuits such as sheet emitting, diffusion sheet
Deng (being not shown in Fig. 2 and Fig. 3), to realize corresponding function, it is not limited to structure shown in Fig. 2 and Fig. 3.
Fig. 4 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention, as shown in figure 4, the display device
Including：Display panel 3, what comes into a driver's resolution element 2 and the backlight module 1 as described in any one embodiment of the invention；Wherein, depending on
Scape resolution element 2 is set between backlight module 1 and display panel 3.
In the technical scheme, the benefit that comes into a driver's resolution element 2 is set between backlight module 1 and display panel 3 is existed
In, the problems such as factory can be effectively prevent to cause screen to rupture in fitting process, show exception, the non-defective unit of raising 3D display device
Rate.
Optionally, what comes into a driver's resolution element 2 is that 3D films are set on the light-emitting surface of light guide plate 11；Alternatively, what comes into a driver's resolution element 2
Display panel 3 is set to close to 11 side of light guide plate.Illustratively, full fitting 3D films may be used, specifically usable glue or
Person's optical cement fits in full fitting 3D films between light guide plate 11 and screen.Display panel 3 and the contraposition of 3D films are fit together,
3D films fit in display panel 3 close to 11 side of light guide plate, or the fitting of 3D films is directly fitted the light-emitting surface with light guide plate 11
On.Optional in the present embodiment is that comes into a driver's resolution element 2 i.e. 3D films are set on the light-emitting surface of light guide plate 11, you can directly will
3D films are fitted on light guide plate, it is possible to prevente effectively from traditional operation when 3D films fit on screen caused by screen rupture,
Display exception etc. is related bad, improves factory's yield.
It can be understood that in practical applications, can also be and what comes into a driver's resolution element 2 is set to the back of the body by other means
Between optical mode group 1 and display panel 3, such as 3D films are set to according to demand on the optical film layer being used cooperatively with light guide plate 11
Deng only within the scope of protection of the invention, not limiting herein.
In view of the lightening demand of display device, in embodiments of the present invention, what comes into a driver's resolution element includes multiple along
Three directions are arranged, and the cylindrical mirror unit extended along fourth direction；The focal length of cylindrical mirror unit is in cylindrical mirror unit to first area
Or between 0.3 to 0.8 times of the distance of second area.The advantages of this arrangement are as follows cylindrical mirror can reach preferable light splitting effect
Fruit realizes preferable 3D display.Optionally, third direction is parallel with first direction x；Fourth direction is parallel with second direction y.
Fig. 5 is a kind of structural schematic diagram for what comes into a driver's resolution element that the embodiment of the present invention is provided, wherein right side circle
It is the partial enlarged view of the structure in the border circular areas of the left side in domain.As shown in figure 5,2 i.e. full patch of full attaching type what comes into a driver's resolution element
It closes 3D films and includes transparent substrate layer 21, first material layer 22 and second material layer 23, first material layer 22 and second material layer
23 have collectively constituted the 3D micro-structure layer suitable for being bonded entirely, and interface constitutes microstructured interface.First material layer 22 is with purple
Either other modes are attached in transparent substrate layer 21 or first material layer 22 and transparent substrate layer 21 the cured mode of outside line
It is molded with by identical material.Second material layer 23 is attached to first material layer with ultraviolet curing, coating or other modes
On 22.Wherein, the material of transparent substrate layer 21 can be specifically polyethylene (Polyethylene, PE), polyvinyl chloride
(Polyvinylchloride, PVC), polyethylene terephthalate (Polyethylene terephthalate, PET)
Or other transparent materials, it can also be the complex of two kinds and two or more transparent materials.
Illustratively, the refractive index of first material layer 22 is n1, and the refractive index of second material layer 23 is n2.Illustratively, n1
And n2In high refractive index may be between range 1.5-1.7, refractive index n1And n2In low-refraction may be at range
Between 1.3-1.55, the difference between the refractive index of first material layer 22 and the refractive index of the second folding material layer 23 is between 0.1-
Between 0.4.
The interface that the interface of first material layer 22 and second material layer 23 is constituted is 3D micro-structure interface, cross-section structure
For cylindrical mirror structure, i.e. 3D micro-structure is arranged by multiple along third direction, the cylindrical mirror unit composition extended along fourth direction.
It is optional to be while ensureing 3D display effect, the focal length of cylindrical mirror unit be in cylindrical mirror unit to first area or
Between 0.3 to 0.8 times of the distance of second area.The advantages of this arrangement are as follows fully considering the operation principle of cylindrical mirror unit
And the position relationship between each structure sheaf of display device, realize preferable 3D effect.
In order to realize preferably 3D display effect, optionally, the width d of the first area 110 of light guide plate 111With the secondth area
The sum of the width d2 in domain 111 is of same size with the pixel unit in display panel 3.It is also understood that two adjacent
The width between width or two adjacent second areas 111 between one region 110, with the pixel list in display panel 3
First is of same size.Wherein, pixel unit includes at least red sub-pixel unit, green sub-pixels unit and blue subpixels list
Member.It is understood that in actual design, the width d of each first area 110 can be set according to screen pixels1, Yi Jipai
Cloth rule, further according to the width d of first area 1101Design the radius of each cylindrical mirror unit in what comes into a driver's resolution element.
Fig. 6 is a kind of fundamental diagram of display device provided in an embodiment of the present invention, as shown in fig. 6, aobvious carrying out 3D
When showing, it is set to after the light that the light sources 10 of 11 side of light guide plate or both sides is sent out enters light guide plate 11, leads in backlight module 1
The second area 111 of tabula rasa 11 is totally reflected, and light-output is generated the area light at interval by the first area 110 of light guide plate 11,
And then change the transmission direction of light after what comes into a driver's resolution element 2 is by each region anaclasis so that light is through on display panel 3
After sub-pixel, as the light source that image is shown, the two images with parallax that display panel 3 is shown are respectively supplied to observe
The right and left eyes of person so that observer can watch the image with 3D display effect.
Optionally, the display device in the embodiment of the present invention, width and the second area width of light guide plate first area are
1:3, the width between two adjacent first areas is 0.069mm, the width between two adjacent subpixels of display panel
For 0.069mm, the radius of cylindrical mirror is 0.13mm, focal length 0.251mm, first area or second area in cylindrical mirror to light guide plate
Distance is 0.47mm.The spectral energy distribution curve of the display device is obtained by optical software measurement, as shown in Figure 7, wherein horizontal
Coordinate is observer position lateral distance, and ordinate is normalized energy value, and solid line indicates entry into the energy of observer's right eye, empty
Line indicates entry into the energy of observer's left eye, and as shown in Figure 7, left and right viewpoint realizes preferable separation, has preferable 3D effects
Fruit.
Optionally, the display device in the embodiment of the present invention, width and the second area width of light guide plate first area are
3:7, the width between two adjacent first areas is 0.2mm, and the width between two adjacent subpixels of display panel is
0.2mm, cylindrical mirror radius are 0.27mm, focal length 0.521mm, and the distance of first area or second area is in cylindrical mirror to light guide plate
1mm.The spectral energy distribution curve of the display device is obtained by optical software measurement, as shown in Figure 8, wherein abscissa is to see
The person of examining position lateral distance, ordinate are normalized energy value, and solid line indicates entry into the energy of observer's right eye, dotted line indicate into
Enter the energy of observer's left eye, as shown in Figure 8, left and right viewpoint realizes preferable separation, has preferable 3D effect.
The display device of the 2D of display device and 3D display effect in order to balance, the embodiment of the present invention can also include light modulation
Device.Light modulating device may be disposed between what comes into a driver's resolution element 2 and light guide plate 11, alternatively, being set to what comes into a driver's resolution element 2 and showing
Show between panel 3.
Wherein, light modulating device be used for plane effect show and stereoscopic effect display when light source switch over.Example
Property, in 3D display, light modulating device is used to transmit the light of the light-emitting surface of light guide plate 11；When 2D is shown, light modulation
Device is used to the light and dark light of the light-emitting surface of light guide plate 11 being converted to area source.
Illustratively, you can between the what comes into a driver's resolution element 2 and display panel 3 of display device or what comes into a driver's separation member
Between part 2 and light guide plate 11 plus one layer adjust polymer dispersed liquid crystals (Polymer Dispersed Liquid Crystal,
PDLC), it is called liquid crystal light modulation film.Liquid crystal light modulation film is to mix low molecular weight liquid crystal and prepolymer Kuer UV65 glue, certain
Under the conditions of aggregated reaction, form micron-sized liquid crystal droplet and be evenly dispersed in macromolecule network.Its operation principle is profit
Obtain the material with electro-optic response characteristic with the dielectric anisotropy of liquid crystal molecule, operate mainly in scattering states and transparent state it
Between and have certain gray scale.
When PDLC is opened, be applied with external voltage, the optical axis of liquid crystal particle is arranged perpendicular to film surface, i.e., with electric field side
To consistent.The ordinary refraction index of particle matches substantially with the refractive index of polymer, and without apparent interface, it is substantially uniform to constitute one
Medium, so incident light will not scatter, film is transparent；When PDLC is closed, in the case of no applied voltage,
Regular electric field cannot be formed between film, the direction of optic axis of liquid crystal particle is random, and disordered state, effective refractive index n is presented0No
With the refractive index n of polymerpMatching.Incident ray is scattered strongly, and film is in opaque or translucent.
If pdlc film is between 3D films and light guide plate 11, when PDLC is closed, PDLC in opaque or translucent,
It is equivalent to PDLC and original interval strip source is become area source, 3D films can not play light splitting for the area source of whole face
Effect, be equivalent to 3D films and do not play effect, so content is not suffered a loss when 2D is shown.
If pdlc film is between 3D films and screen, when PDLC is closed, PDLC is in opaque or translucent, quite
In PDLC it is original be divided by lens after light spread atomization again, PDLC, which is equivalent to, becomes an area source
It shines directly on screen, so content is not suffered a loss when 2D is shown.
In the present embodiment, by the way that light modulating device is arranged, by opening and closing light modulating device so that light modulating device is not
It is converted between transparent or semitransparent and pellucidity, to realize the conversion of light source, while ensureing display effect, letter
It is single easily to realize switching of the display device between 2D and 3D display pattern.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above example still fall within the model of (invention) technical solution of the invention
In enclosing.
Claims (15)
1. a kind of light guide plate, which is characterized in that including：Incidence surface and the light-emitting surface adjacent with the incidence surface, with it is described go out
The opposite another side of smooth surface includes along multiple first areas that first direction is intervally arranged and multiple second areas；Firstth area
Domain extends in a second direction with the second area；Wherein, the first area includes multiple light directing sites.
2. light guide plate according to claim 1, which is characterized in that each first area it is of same size；Each described
Two regions it is of same size.
3. light guide plate according to claim 2, which is characterized in that the first area and the second area are strip
Region.
4. light guide plate according to claim 1, which is characterized in that the width of the second area is more than the first area
Width.
5. light guide plate according to claim 4, which is characterized in that the width of the second area is than the first area
Width is at least big by 20%.
6. light guide plate according to claim 1, which is characterized in that the diameter of the light directing site is less than the first area
/ 10th of width on first direction.
7. light guide plate according to claim 1, which is characterized in that the first direction is vertical with the second direction.
8. a kind of backlight module, which is characterized in that the leaded light including at least one light source and as described in claim 1-7 is any
Plate；Wherein, the incidence surface of the light source and the light guide plate is oppositely arranged.
9. a kind of display device, which is characterized in that including：Display panel, what comes into a driver's resolution element and as claimed in claim 8
Backlight module；Wherein, the what comes into a driver's resolution element is set between the backlight module and the display panel.
10. display device according to claim 9, it is characterised in that：The what comes into a driver's resolution element is set to the leaded light
On the light-emitting surface of plate；Alternatively, the what comes into a driver's resolution element is set to display panel close to the light guide plate side.
11. display device according to claim 9, it is characterised in that：The width of the first area and secondth area
The sum of the width in domain is of same size with the pixel unit in the display panel.
12. display device according to claim 9, which is characterized in that the what comes into a driver's resolution element includes multiple along third
Direction is arranged, and the cylindrical mirror unit extended along fourth direction；The focal length of the cylindrical mirror unit is in the cylindrical mirror unit to institute
Between state the distance of first area or the second area 0.3 to 0.8 times.
13. display device according to claim 12, which is characterized in that the third direction is flat with the first direction
Row；The fourth direction is parallel with the second direction.
14. display device according to claim 9, which is characterized in that further include：Light modulating device is set to the what comes into a driver's
Between resolution element and the light guide plate, alternatively, being set between the lens array film and display panel.
15. display device according to claim 14, which is characterized in that the light modulating device is for showing plane effect
And light source when stereoscopic effect display switches over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180150.3A CN108445576B (en) | 2018-03-05 | 2018-03-05 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180150.3A CN108445576B (en) | 2018-03-05 | 2018-03-05 | Light guide plate, backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108445576A true CN108445576A (en) | 2018-08-24 |
| CN108445576B CN108445576B (en) | 2021-02-19 |
Family
ID=63193544
Family Applications (1)
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| CN201810180150.3A Active CN108445576B (en) | 2018-03-05 | 2018-03-05 | Light guide plate, backlight module and display device |
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| CN108445576B (en) | 2021-02-19 |
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