CN104181634A - Light guide plate, backlight module and display device - Google Patents
Light guide plate, backlight module and display device Download PDFInfo
- Publication number
- CN104181634A CN104181634A CN201410395069.9A CN201410395069A CN104181634A CN 104181634 A CN104181634 A CN 104181634A CN 201410395069 A CN201410395069 A CN 201410395069A CN 104181634 A CN104181634 A CN 104181634A
- Authority
- CN
- China
- Prior art keywords
- unit
- guide plate
- light guide
- subelement
- queue
- 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.)
- Granted
Links
Abstract
The invention relates to a light guide plate, a backlight module and a display device. According to the light guide plate provided by the invention, an incident surface of the light guide plate is provided with a micro structure, and the micro structure comprises a plurality of intensively arranged units. The backlight module comprises the light guide plate and a light source which is located at the external part of a side edge of the light guide plate, and the light guide plate is the one provided by the invention. The display device comprises the backlight module provided by the invention. According to the technical scheme provided by the invention, the spread angle of light which is emitted by an LED (light emitting diode) and gets into the light guide plate is increased through arranging the micro structure on the incident surface of the light guide plate of the backlight module, thereby increasing the light mixing effect, enabling the backlight module to have better light emitting effects, and effectively preventing a dark and bright alternative phenomenon at an incident side of the backlight module. According to the technical scheme, the incident surface of the light guide plate is provided with the convex or concave point-like micro structure, the spread angle of the incident light is increased by using a scattering effect imposed on light by the micro structure, light mixing is enhanced, and the backlight module is enabled to have better light emitting effects.
Description
Technical field
The present invention relates to a kind of control from the device of arbitrary source, particularly relate to a kind of light guide plate, backlight module and display device.
Background technology
Along with developing rapidly of display technology, as a kind of liquid crystal display (LCD) of display device, become the main flow in flat pannel display field.LCD is that the electric field driven that forms by two electro-conductive glass liquid crystal is therebetween realized demonstration, and because liquid crystal itself is not luminous, so LCD need to realize transmission or reflective display by external light source.Existing LCD great majority are transmission-types, and for transmission-type LCD, backlight module is indispensable ingredient.
LCD backlight module is divided into side-light backlight module and down straight aphototropism mode set according to the position difference of light source.
Side-light backlight module mainly comprises linear light source and the light guide plate that cold cathode fluorescent tube or light emitting diode are made.Light guide plate major function is to convert the linear light of incident to planar light by light principle at random.Light guide plate is the plate of polymethylmethacrylate or polycarbonate material.By modes such as wire mark, laser, extruding, injection mouldings, stamp diffusion point, linear light source is positioned at a side outside of light guide plate, and the light that linear light source sends is to the conduction of the light guide plate other end, when light is mapped to diffusion point, reflected light can, toward all angles diffusion, then be penetrated by the front of light guide plate.
In backlight module, generally all can there is the phenomenon of light inlet side backlight module brightness irregularities, in order to solve this phenomenon, tend to increase incidence surface to the distance of effective luminous zone, or increase the quantity of LED etc., or at incidence surface, do the microstructures such as sawtooth.The first increases incidence surface to the distance of effective luminous zone, although, effectively having increased light mixing effect, homogeneity is good, and the width that it can increase backlight module and final products frame is unfavorable for the designing requirements such as the narrow frame of current product.The second increases the quantity of LED, can solve light mixing effect problem, still, also increases backlight module cost.The third increases sawtooth and also has good effect, but at present along with the making requirement of narrow frame, simple broached-tooth design cannot satisfy the demands, and need to further improve light mixing effect.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, more uniform light guide plate of mixed light, backlight module and display device.
Light guide plate of the present invention, is provided with microstructure on the incidence surface of described light guide plate, and described microstructure comprises the unit of a plurality of dense arrangement.
Light guide plate of the present invention, wherein, described unit comprises the first subelement and a plurality of the second subelement around described the first subelement, and the area of described the second subelement is less than described the first subelement, and the distance between described the second subelement second subelement adjacent with both sides equates.
Light guide plate of the present invention, wherein, described the first subelement, the second subelement are surperficial projection and/or the groove that protrudes from described light guide plate, described projection or described groove comprise the first end face.
Light guide plate of the present invention, wherein, the 4th subelement that described unit comprises the 3rd subelement and is arranged at the inside of described the 3rd subelement, the area of described the 4th subelement is less than described the 3rd subelement.
Light guide plate of the present invention, wherein, described the 3rd subelement, the 4th subelement are surperficial projection and/or the groove that protrudes from described light guide plate, described projection or described groove comprise the first end face.
Light guide plate of the present invention, wherein, described unit is surperficial projection or the groove that protrudes from described light guide plate, described projection or described groove comprise the first end face.
Light guide plate of the present invention, wherein, described first end face comprises to the side-prominent ring-type spherical crown surface of the incidence surface one away from described light guide plate and around the sidewall at the edge of described ring-type spherical crown surface, forms the groove of the incidence surface one side depression that deviates from described light guide plate between described sidewall and described ring-type spherical crown surface.
Light guide plate of the present invention, wherein, in the region that is provided with microstructure on the incidence surface of described light guide plate, the density that unit is arranged is successively decreased to two ends by middle part, and the area of unit is successively decreased to two ends by middle part.
Light guide plate of the present invention, wherein, a plurality of described unit are vertically arranged and are formed a plurality of cell queues, a plurality of cell queues are laterally equidistantly arranged in described region, the density that unit in described cell queue is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in described cell queue is successively decreased to the two ends of cell queue by the middle part of cell queue, described in each in described cell queue unit with unit corresponding in the adjacent cells queue of both sides on a horizontal straight line.
Light guide plate of the present invention, wherein, a plurality of described unit are vertically arranged and are formed a plurality of cell queues, a plurality of cell queues are laterally equidistantly arranged in described region, the density that unit in described cell queue is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in described cell queue is successively decreased to the two ends of cell queue by the middle part of cell queue, and the described unit in described cell queue and the described unit in adjacent cells queue are staggered.
Light guide plate of the present invention, wherein, a plurality of described unit are arranged and are formed a plurality of unit array, and a plurality of unit array is regular and arranges.
Light guide plate of the present invention, wherein, in described unit array, a plurality of unit are arranged and are formed a plurality of nested unit loop one by one, distance ecto-entad between adjacent cells ring reduces gradually, and in described unit loop, the distance between adjacent cells equates, distance ecto-entad between the adjacent cells of unit loop reduces gradually, and the area ecto-entad of the unit in a plurality of unit loop increases gradually.
Light guide plate of the present invention, wherein, described unit array comprises four sub-arrays, in each sub-array, unit is arranged and is formed the circular arc row that a plurality of parallel equidistant are arranged, in four sub-arrays, the first sub-array and the second sub-array take vertical curve as axle symmetrical, it is symmetrical up and down as axle that the first sub-array, the 3rd sub-array be take horizontal straight line, and it is symmetrical up and down as axle that the second sub-array, the 4th sub-array be take horizontal straight line, and the circular arc of the first sub-array be listed as to the second sub-array place direction protrusion.
Light guide plate of the present invention, wherein, a plurality of described unit are arranged and are formed a plurality of unit sets, each unit set comprises a unit and around a plurality of unit of described unit, distance around adjacent cells among a plurality of unit of described unit equates, a plurality of described unit sets are arranged the unit set queue that forms a plurality of equidistant arrangements, the distance of the adjacent cells set in described unit set queue equates, described in each in unit set queue unit set with unit set corresponding in the adjacent cells set queue of both sides on a horizontal straight line.
Light guide plate of the present invention, wherein, described unit comprises first module, second unit, Unit the 3rd, Unit the 4th, Unit the 5th, in described microstructure, it is inner that described second unit is positioned at described first module, a plurality of described Unit the 3rd form the first module ring around described first module, a plurality of described Unit the 4th form the second unit ring around described the 3rd unit loop, a plurality of described Unit the 5th form a plurality of respectively around the 3rd unit loop of Unit the 4th described in each, the area of described first module, the area of described Unit the 4th, the area of described second unit, the area of described Unit the 3rd, the area of described Unit the 5th reduces successively.
Backlight module of the present invention, the outside light source that comprises light guide plate and be positioned at a side of described light guide plate, described light guide plate is light guide plate of the present invention.
Display device of the present invention, comprises backlight module of the present invention.
Technical scheme of the present invention, by the incidence surface in backlight module light guide plate, microstructure is set and enters the spread angle of light guide plate with the light that increases LED and send, thereby increase light mixing effect, backlight module is had and better go out light effect, effectively prevent the light and dark phenomenon occurring in backlight module light inlet side.
Technical scheme of the present invention, the incidence surface of light guide plate is done point-like microstructure projection or depression, utilizes microstructure to scattering of light effect, increases the spread angle of incident ray, strengthens mixed light, backlight module is had and better go out light effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of backlight module of the present invention;
Fig. 2 is the structural representation of the unit in the embodiment mono-of light guide plate of the present invention;
Fig. 3 is the arrangement schematic diagram of the unit in the embodiment mono-of light guide plate of the present invention;
Fig. 4 is the arrangement schematic diagram of the unit in the embodiment bis-of light guide plate of the present invention;
Fig. 5 is the arrangement schematic diagram of the unit in the embodiment tri-of light guide plate of the present invention;
Fig. 6 is the arrangement schematic diagram of the unit in the embodiment tetra-of light guide plate of the present invention;
Fig. 7 is the arrangement schematic diagram of the unit in the embodiment five of light guide plate of the present invention;
Fig. 8 is the arrangement schematic diagram of the unit in the embodiment six of light guide plate of the present invention;
Fig. 9 is the arrangement schematic diagram of the unit in the embodiment seven of light guide plate of the present invention;
Figure 10 is the structural representation of the unit in the embodiment eight of light guide plate of the present invention;
Figure 11 is the structural representation of the unit in the embodiment nine of light guide plate of the present invention;
Figure 12 is the structural representation of the unit in the embodiment ten of light guide plate of the present invention;
Figure 13 is the structural representation of the unit in the embodiment 11 of light guide plate of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can be implemented, but illustrated embodiment is not as a limitation of the invention so that those skilled in the art can better understand the present invention also.
Embodiment mono-
As shown in Figure 1, backlight module of the present invention, the outside light source 2 that comprises light guide plate 1 and be positioned at a side of described light guide plate 1, light guide plate 1 is light guide plate of the present invention.
Light guide plate of the present invention, is provided with microstructure 10 on the incidence surface of light guide plate, microstructure 10 comprises the unit 11 of a plurality of dense arrangement.
Shown in Fig. 2, the embodiment of light guide plate of the present invention, wherein, unit 11 is for protruding from the surperficial projection of light guide plate, described in comprise the first end face.
The embodiment of light guide plate of the present invention, wherein, the first end face 12 comprises to the side-prominent ring-type spherical crown surface 14 of the incidence surface 18 1 away from described light guide plate and around the sidewall 15 at the edge of ring-type spherical crown surface 14, forms the groove 13 of the incidence surface 18 1 sides depressions that deviate from described light guide plate between sidewall 15 and ring-type spherical crown surface 14.
Shown in Fig. 3, the embodiment of light guide plate of the present invention, wherein, in the region that is provided with microstructure 10 on the incidence surface of light guide plate, the density that unit 11 is arranged is successively decreased to two ends by middle part, and the area of unit 11 is successively decreased to two ends by middle part.
The embodiment of light guide plate of the present invention, wherein, a plurality of unit 11 are vertically arranged and are formed a plurality of cell queues 5, a plurality of cell queues 5 are laterally equidistantly arranged in region, the density that unit 11 in cell queue 5 is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in cell queue is successively decreased to the two ends of cell queue by the middle part of cell queue, and the unit in the unit in cell queue and adjacent cells queue is staggered.
Embodiment bis-
Shown in Fig. 4, the embodiment of light guide plate of the present invention and the difference of the light guide plate of embodiment mono-are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, a plurality of unit 11 are vertically arranged and are formed a plurality of cell queues 5, a plurality of cell queues 5 are laterally equidistantly arranged in region, the density that unit in cell queue 5 is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in cell queue 5 is successively decreased to the two ends of cell queue by the middle part of cell queue, each unit in cell queue 5 with unit corresponding in the adjacent cells queue of both sides on a horizontal straight line.
Embodiment tri-
Shown in Fig. 5, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, a plurality of unit 11 are arranged and are formed a plurality of unit array 6, and a plurality of unit array 6 is regular and arranges.Above-mentioned regular arrangement comprises the horizontal line spread of a plurality of unit array 6, vertical lines arrangement, angled straight lines arrangement etc.
In described unit array, a plurality of unit are arranged and are formed a plurality of nested unit loop one by one, distance ecto-entad between adjacent cells ring reduces gradually, in described unit loop, distance between adjacent cells equates, distance ecto-entad between the adjacent cells of unit loop reduces gradually, and the area ecto-entad of the unit in a plurality of unit loop increases gradually.
The embodiment of light guide plate of the present invention, wherein, in unit array 6, a plurality of unit 11 are arranged and are formed a plurality of nested elliptical rings one by one, distance ecto-entad between adjacent ellipses ring reduces gradually, in elliptical ring, the distance between adjacent cells is equal, and the distance ecto-entad between the adjacent cells of elliptical ring reduces gradually.The area ecto-entad of the unit in a plurality of elliptical rings increases gradually.
Embodiment tetra-
Shown in Fig. 6, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, in unit array 6, a plurality of unit 11 are arranged and are formed a plurality of nested straight-flanked rings one by one, and the distance ecto-entad between adjacent rectangle ring reduces gradually, in straight-flanked ring, distance between adjacent cells is equal, and the distance ecto-entad between the adjacent cells of straight-flanked ring reduces gradually, in straight-flanked ring, the area of unit is equal, and the area ecto-entad of the unit in a plurality of straight-flanked rings increases gradually.
Embodiment five
Shown in Fig. 7, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, unit array 6 comprises four sub-arrays, in each sub-array, unit is arranged and is formed the circular arc row that a plurality of parallel equidistant are arranged, in four sub-arrays, the first sub-array 61 and the second sub-array 62 take vertical curve Y as axle symmetrical, the first sub-array the 61, the 3rd sub-array 63 take horizontal straight line X as axle symmetrical up and down, it is symmetrical up and down as axle that the second sub-array the 62, the 4th sub-array 64 be take horizontal straight line X, and the circular arc of the first sub-array 61 be listed as to the second sub-array 62 place directions protrusions.
Embodiment six
Shown in Fig. 8, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, a plurality of unit 11 are arranged and are formed a plurality of unit sets 7, each unit set 7 comprises a unit and around a plurality of unit of unit, distance around adjacent cells among a plurality of unit of unit equates, a plurality of unit sets are arranged the unit set queue 8 that forms a plurality of equidistant arrangements, the distance of the adjacent cells set in unit set queue 8 equates, each unit set in unit set queue with unit set corresponding in the adjacent cells set queue of both sides on a horizontal straight line.
Embodiment seven
Shown in Fig. 9, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are arrangement architecture different of a plurality of unit 11.
The embodiment of light guide plate of the present invention, wherein, unit 11 comprises first module 21, second unit 22, the 3rd unit 23, the 4th unit 24, the 5th unit 25, in microstructure 10, second unit 22 is positioned at first module 21 inside, the first module ring that a plurality of the 3rd unit 23 form around first module 21, the second unit ring that a plurality of the 4th unit 24 form around the 3rd unit loop 23, a plurality of the 5th unit 25 form a plurality of respectively around the 3rd unit loop of each the 4th unit 24, the area of first module 21, the area of the 4th unit 24, the area of second unit 22, the area of the 3rd unit 23, the area of the 5th unit 25 reduces successively.
Embodiment eight
Shown in Figure 10, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are concrete structure different of unit 11.
The embodiment of light guide plate of the present invention, wherein, unit 11 is the groove to the inner recess of light guide plate.The structure proximate of the structure of described groove and embodiment mono-protrusions.Described groove comprises the first end face 12, the first end face 12 comprises to the side-prominent ring-type spherical crown surface 14 of the incidence surface 18 1 away from described light guide plate and around the sidewall 15 at the edge of ring-type spherical crown surface 14, forms the groove 13 of the incidence surface 18 1 sides depressions that deviate from described light guide plate between sidewall 15 and ring-type spherical crown surface 14.
Embodiment nine
Shown in Figure 11, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are concrete structure different of unit 11.
The embodiment of light guide plate of the present invention, wherein, unit 11 comprises that the distance that the area of the first subelement 41 and a plurality of the second subelement 42, the second subelements 42 around the first subelement 41 is less than between the first subelement 41, the second subelements second subelement adjacent with both sides equates.
The embodiment of light guide plate of the present invention, wherein, the first subelement, the second subelement are and protrude from the surperficial projection of light guide plate or be to the groove of the inner recess of light guide plate, and described projection or described groove comprise the first end face.
In other embodiment of light guide plate of the present invention, the first subelement, the second subelement can be respectively and protrude from the surperficial projection of light guide plate and to the groove of the inner recess of light guide plate, described projection or described groove comprise the first end face.
The embodiment of light guide plate of the present invention, wherein, the structure proximate of described projection or described groove structure and embodiment mono-protrusions, embodiment eight further groove.Described first end face comprises to the side-prominent ring-type spherical crown surface of the incidence surface one away from described light guide plate and around the sidewall at the edge of described ring-type spherical crown surface, forms the groove of the incidence surface one side depression that deviates from described light guide plate between described sidewall and described ring-type spherical crown surface.
Embodiment ten
Shown in Figure 12, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are concrete structure different of unit 11.
The embodiment of light guide plate of the present invention, wherein, the area of the 4th subelement 44, the four subelements 44 that unit 11 comprises the 3rd subelement 43 and is arranged at the inside of the 3rd subelement 43 is less than the area of the 3rd subelement 43.
The embodiment of light guide plate of the present invention, wherein, the 3rd subelement 43, the 4th subelement 44 are the surperficial projection that protrudes from light guide plate 1.
Embodiment 11
Shown in Figure 13, the embodiment of light guide plate of the present invention and the difference of the light guide plate of above-described embodiment are concrete structure different of unit 11.
The embodiment of light guide plate of the present invention, wherein, the 3rd subelement 43, the 4th subelement 44 are to the groove of the inner recess of light guide plate 1.
In other embodiment of light guide plate of the present invention, the 3rd subelement can be the groove of the inner recess of guide tabula rasa, and the 4th subelement can be outside outstanding projection.
In other embodiment of light guide plate of the present invention, the 3rd subelement can be for protruding from the surperficial projection of light guide plate, and the 4th subelement can be the groove of the inner recess of guide tabula rasa.
In the embodiment of light guide plate of the present invention, the structure of projection or the structure of groove can be as in embodiment mono-or embodiment eight with bulge-structure or the groove structure of ring-type spherical crown surface.
In the embodiment of light guide plate of the present invention, described projection or described groove comprise the first end face, described first end face comprises to the side-prominent ring-type spherical crown surface of the incidence surface one away from described light guide plate and around the sidewall at the edge of described ring-type spherical crown surface, forms the groove of the incidence surface one side depression that deviates from described light guide plate between described sidewall and described ring-type spherical crown surface.
In the embodiment of the light guide plate of the invention described above, the unit 11 of above-mentioned different structure all can be applied to respectively in embodiment mono-, embodiment bis-, embodiment tri-, embodiment tetra-, embodiment five, embodiment six, embodiment seven.
Display device of the present invention, comprises backlight module of the present invention.
Light guide plate of the present invention, is provided with microstructure on the incidence surface of described light guide plate, and described microstructure comprises the unit of a plurality of dense arrangement.Above-mentioned dense arrangement can be interpreted as unit interval and be less than 1mm.
Technical scheme of the present invention, by the incidence surface in backlight module light guide plate, microstructure is set and enters the spread angle of light guide plate with the light that increases LED and send, thereby increase light mixing effect, backlight module is had and better go out light effect, effectively prevent the light and dark phenomenon occurring in backlight module light inlet side.
The present invention does point-like microstructure projection or depression at the incidence surface of light guide plate, utilizes microstructure to scattering of light effect, increases the spread angle of incident ray, strengthens mixed light, backlight module is had and better go out light effect.
Test shows, the light guide plate of above-described embodiment all makes the light effect that of backlight module be able to obvious improvement.Further experiment shows simultaneously, and the size of microstructure is larger to the bright dipping influential effect of backlight module.Guaranteeing under the condition that goes out light effect that backlight module has had, point-like microstructure projection or depression is also different to the requirement of the size of microstructure.
In experiment and simulation, also find, the spacing of unit and size have very large relation with experiment effect.
When unit interval is less than 0.01mm, holding unit size constancy, the spacing that continues to reduce between unit can find, and the spread angle of light is more and more less, and effect is more and more bad; Same condition, when the spacing of unit is greater than 0.1mm, increases spacing, and the spread angle of light also can be more and more less, and effect is more bad; When unit interval is constant, the radius and the height that change unit can be found: (1) when the radius of unit is increased to spread angle 0.2mm process from infinitesimal can be increasing, effect is become better and better, crossed 0.2mm and just significantly do not promoted effect, and effect can be relatively good between 0.08-0.15mm to find cell radius; (2) height of unit is increased to the process of 0.1mm from infinitesimal, and effect can be relatively good, has crossed this boundary effect and can decline on the contrary, effective during not even as without microstructure.
Relatively good between 0.01-0.1mm by the unit interval of learning above this microstructure, radius is relatively good in 0.08-0.15mm effect, and height or the degree of depth are relatively good in 0.09-0.12 effect.
In experiment and simulation, find, in the backlight module of 2.6 cun, the long 66.3mm of light guide plate, wide 14.1mm, 6 LEDs, long limit light inlet, LED is 6mm apart from both sides, and light guide plate incidence surface is 1.72mm to the distance of effective luminous zone.After application embodiments of the invention nine, embodiment ten, embodiment 11, embodiment 12, embodiment 13, find all not have luminous point phenomenon, optics grade is fine.
Find under study for action, in the arrangement mode of the unit of all microstructures, the better effects if of the microstructure that the effect of compound arrangement microstructure is arranged than single entry.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (17)
1. a light guide plate, is characterized in that, on the incidence surface of described light guide plate, is provided with microstructure, and described microstructure comprises the unit of a plurality of dense arrangement.
2. light guide plate according to claim 1, it is characterized in that, described unit comprises the first subelement and a plurality of the second subelement around described the first subelement, the area of described the second subelement is less than described the first subelement, and the distance between described the second subelement second subelement adjacent with both sides equates.
3. light guide plate according to claim 2, is characterized in that, described the first subelement, the second subelement are surperficial projection and/or the groove that protrudes from described light guide plate, and described projection or described groove comprise the first end face.
4. light guide plate according to claim 1, is characterized in that, the 4th subelement that described unit comprises the 3rd subelement and is arranged at the inside of described the 3rd subelement, and the area of described the 4th subelement is less than described the 3rd subelement.
5. light guide plate according to claim 4, is characterized in that, described the 3rd subelement, the 4th subelement are surperficial projection and/or the groove that protrudes from described light guide plate, and described projection or described groove comprise the first end face.
6. light guide plate according to claim 1, is characterized in that, described unit is surperficial projection or the groove that protrudes from described light guide plate, and described projection or described groove comprise the first end face.
7. according to the light guide plate described in claim 3,5 or 6 any one, it is characterized in that, described first end face comprises to the side-prominent ring-type spherical crown surface of the incidence surface one away from described light guide plate and around the sidewall at the edge of described ring-type spherical crown surface, forms the groove of the incidence surface one side depression that deviates from described light guide plate between described sidewall and described ring-type spherical crown surface.
8. light guide plate according to claim 1, is characterized in that, in the region that is provided with microstructure on the incidence surface of described light guide plate, the density that unit is arranged is successively decreased to two ends by middle part, and the area of unit is successively decreased to two ends by middle part.
9. light guide plate according to claim 8, it is characterized in that, a plurality of described unit are vertically arranged and are formed a plurality of cell queues, a plurality of cell queues are laterally equidistantly arranged in described region, the density that unit in described cell queue is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in described cell queue is successively decreased to the two ends of cell queue by the middle part of cell queue, described in each in described cell queue unit with unit corresponding in the adjacent cells queue of both sides on a horizontal straight line.
10. light guide plate according to claim 8, it is characterized in that, a plurality of described unit are vertically arranged and are formed a plurality of cell queues, a plurality of cell queues are laterally equidistantly arranged in described region, the density that unit in described cell queue is arranged is successively decreased to the two ends of cell queue by the middle part of cell queue, the area of the unit in described cell queue is successively decreased to the two ends of cell queue by the middle part of cell queue, and the described unit in described cell queue and the described unit in adjacent cells queue are staggered.
11. light guide plate according to claim 1, is characterized in that, a plurality of described unit are arranged and formed a plurality of unit array, and a plurality of unit array is regular and arranges.
12. light guide plate according to claim 11, it is characterized in that, in described unit array, a plurality of unit are arranged and are formed a plurality of nested unit loop one by one, distance ecto-entad between adjacent cells ring reduces gradually, and in described unit loop, the distance between adjacent cells equates, distance ecto-entad between the adjacent cells of unit loop reduces gradually, and the area ecto-entad of the unit in a plurality of unit loop increases gradually.
13. light guide plate according to claim 11, it is characterized in that, described unit array comprises four sub-arrays, in each sub-array, unit is arranged and is formed the circular arc row that a plurality of parallel equidistant are arranged, in four sub-arrays, the first sub-array and the second sub-array take vertical curve as axle symmetrical, the first sub-array, the 3rd sub-array take horizontal straight line as axle symmetrical up and down, it is symmetrical up and down as axle that the second sub-array, the 4th sub-array be take horizontal straight line, and the circular arc of the first sub-array be listed as to the second sub-array place direction protrusion.
14. light guide plate according to claim 1, it is characterized in that, a plurality of described unit are arranged and are formed a plurality of unit sets, each unit set comprises a unit and around a plurality of unit of described unit, distance around adjacent cells among a plurality of unit of described unit equates, a plurality of described unit sets are arranged the unit set queue that forms a plurality of equidistant arrangements, the distance of the adjacent cells set in described unit set queue equates, described in each in unit set queue unit set with unit set corresponding in the adjacent cells set queue of both sides on a horizontal straight line.
15. light guide plate according to claim 1, it is characterized in that, described unit comprises first module, second unit, Unit the 3rd, Unit the 4th, Unit the 5th, in described microstructure, it is inner that described second unit is positioned at described first module, a plurality of described Unit the 3rd form the first module ring around described first module, a plurality of described Unit the 4th form the second unit ring around described the 3rd unit loop, a plurality of described Unit the 5th form a plurality of respectively around the 3rd unit loop of Unit the 4th described in each, the area of described first module, the area of described Unit the 4th, the area of described second unit, the area of described Unit the 3rd, the area of described Unit the 5th reduces successively.
16. 1 kinds of backlight modules, the outside light source that comprises light guide plate and be positioned at a side of described light guide plate, is characterized in that, described light guide plate is the light guide plate as described in claim 1-15 any one.
17. 1 kinds of display device, is characterized in that, comprise backlight module as claimed in claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395069.9A CN104181634B (en) | 2014-08-12 | 2014-08-12 | Light guide plate, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395069.9A CN104181634B (en) | 2014-08-12 | 2014-08-12 | Light guide plate, backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104181634A true CN104181634A (en) | 2014-12-03 |
| CN104181634B CN104181634B (en) | 2017-10-17 |
Family
ID=51962817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410395069.9A Active CN104181634B (en) | 2014-08-12 | 2014-08-12 | Light guide plate, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104181634B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102397A (en) * | 2017-05-19 | 2017-08-29 | 武汉华星光电技术有限公司 | Edge-type light guide plate and backlight module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051852A1 (en) * | 2007-08-22 | 2009-02-26 | Nano Precision Corporation | Backlight module and liquid crystal display using the same |
| CN101424769A (en) * | 2007-10-29 | 2009-05-06 | 胜华科技股份有限公司 | Light guide board |
| CN101498810A (en) * | 2009-03-25 | 2009-08-05 | 友达光电股份有限公司 | Light conducting plate and backlight module employing the same |
| CN201689188U (en) * | 2010-02-11 | 2010-12-29 | 辅祥实业股份有限公司 | Improvement of side-light-leakage prevention structure of light guide plate |
| CN102401323A (en) * | 2010-09-13 | 2012-04-04 | 奇菱科技股份有限公司 | Backlight module and light guide plate thereof |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
-
2014
- 2014-08-12 CN CN201410395069.9A patent/CN104181634B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051852A1 (en) * | 2007-08-22 | 2009-02-26 | Nano Precision Corporation | Backlight module and liquid crystal display using the same |
| CN101424769A (en) * | 2007-10-29 | 2009-05-06 | 胜华科技股份有限公司 | Light guide board |
| CN101498810A (en) * | 2009-03-25 | 2009-08-05 | 友达光电股份有限公司 | Light conducting plate and backlight module employing the same |
| CN201689188U (en) * | 2010-02-11 | 2010-12-29 | 辅祥实业股份有限公司 | Improvement of side-light-leakage prevention structure of light guide plate |
| CN102401323A (en) * | 2010-09-13 | 2012-04-04 | 奇菱科技股份有限公司 | Backlight module and light guide plate thereof |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102397A (en) * | 2017-05-19 | 2017-08-29 | 武汉华星光电技术有限公司 | Edge-type light guide plate and backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104181634B (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101750666B (en) | Light guide plate and backlight module using thereof | |
| CN201083921Y (en) | Backlight module group and LCD | |
| CN101339327B (en) | Backlight module group and its optical plate | |
| CN202267758U (en) | Light guide plate, backlight source and display device | |
| CN203731289U (en) | LED lamp strips, backlight module and display device | |
| CN101140335A (en) | Light conducting plate and back light module unit Light conducting plate | |
| CN105116477B (en) | Optical element, light guide plate, prism, backlight module and display device | |
| EP2728248B1 (en) | Light-emitting unit, backlight module and display device | |
| US9164224B2 (en) | Light guide plate, backlight source and liquid crystal display device | |
| CN101144869A (en) | Light conductive board and the backlight module using same | |
| CN101308225A (en) | Backlight module group and its optical plate | |
| CN101025518A (en) | Optical sheet | |
| CN102890307A (en) | Light guide plate, backlight module and display device | |
| US20170153497A1 (en) | Backlight module | |
| CN202275180U (en) | Light guide plate, back light module group and liquid crystal display device | |
| CN103885117A (en) | Light guide plate, backlight module and liquid crystal module | |
| CN101761829B (en) | Backlight module and display device using same | |
| US9435935B2 (en) | Light guide plate, backlight module and display device | |
| CN102033260A (en) | Light guide plate and backlight module employing same | |
| CN103822139A (en) | Backlight source module and display device | |
| CN101158784A (en) | Back light source | |
| US20160252667A1 (en) | Backlight unit and display device | |
| CN104181634A (en) | Light guide plate, backlight module and display device | |
| CN102287649A (en) | Light-emitting diode (LED) array and backlight module | |
| US9354380B2 (en) | Light diffusion plate and backlight module using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |