CN107219577A - Prism plate and display device - Google Patents
Prism plate and display device Download PDFInfo
- Publication number
- CN107219577A CN107219577A CN201710642210.4A CN201710642210A CN107219577A CN 107219577 A CN107219577 A CN 107219577A CN 201710642210 A CN201710642210 A CN 201710642210A CN 107219577 A CN107219577 A CN 107219577A
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- China
- Prior art keywords
- prism
- collecting part
- light collecting
- plate
- facets
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
A kind of prism plate, including plate body and a plurality of triangular prism being arranged on plate body, each triangular prism at least one end is provided with multistage light collecting part, each light collecting part includes the first prism facets, the second prism facets and inclined-plane, first prism facets and the setting at an angle to each other of the second prism facets, inclined-plane is obliquely installed along the length direction of triangular prism, and inclined-plane is connected between the first prism facets and the second prism facets.The prism plate of the present invention can make display panel left/right side region brightness extremely decrease, reach anti-peeping effect.The invention further relates to a kind of display device.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of prism plate and display device.
Background technology
With the development of society and science and technology, increasing people are various aobvious using such as TV, computer, mobile phone, ipad
Show that terminal is surfed the Net, sees video etc., to the display brightness of various display terminal display screens requirement also more and more higher, especially in
The brightness of heart point.
In correlation technique, various display terminals is the display brightness of its display screen of raising, the prism plate optically focused generally used,
The light that light emitting diode (Light Emitting Diode, abbreviation LED) lamp of backlight module is sent is penetrated from prism plate bottom
Enter, light is assembled to central point ± 50 ° of display terminal display screen by the prism structure on prism plate, not only increase aobvious
The brightness of display screen, while reaching narrow viewing angle effect.
But, in the field of view of central point ± 50 ° of display screen or so, the visual angle change all same of any position makes
Obtain existing display screen left and right sides peep-proof effect not good.
The content of the invention
It is an object of the present invention to provide a kind of prism plate, can be such that display panel left/right side region brightness extremely subtracts
It is weak, reach anti-peeping effect.
The present invention, which solves its technical problem, to be realized using following technical scheme.
A kind of prism plate, including plate body and a plurality of triangular prism being arranged on plate body, each triangular prism at least one end is provided with more
Section light collecting part, each light collecting part includes the first prism facets, the second prism facets and inclined-plane, the first prism facets and the mutual angulation of the second prism facets
Degree is set, and inclined-plane is obliquely installed along the length direction of triangular prism, and inclined-plane be connected to the first prism facets and the second prism facets it
Between.
In the preferred embodiment, the two ends of the above-mentioned respectively triangular prism are respectively equipped with multistage light collecting part, define three
The light collecting part at prism two ends is respectively the first light collecting part and the second light collecting part, the inclined-plane of the first light collecting part and the second light collecting part towards
Center position close to triangular prism is tilted.
In the preferred embodiment, the inclined-plane of above-mentioned first light collecting part and the inclined-plane of the second light collecting part are along Rhizoma Sparganii
The Central Symmetry of post is set.
In the preferred embodiment, above-mentioned each first light collecting part and each second light collecting part are towards close to triangular prism
Center position, the area on inclined-plane is gradually reduced.
In the preferred embodiment, above-mentioned triangular prism includes prism portion, and prism portion is located at the first light collecting part and the
Between two light collecting parts, prism portion includes prism surface and the 4th prism facets, and the first prism facets and prism surface are coplanar, and second
Prism facets and the 4th prism facets are coplanar.
In the preferred embodiment, above-mentioned light collecting part also includes end face, the surface perpendicular to plate body of end face, end
Face is connected between the first prism facets and the second prism facets.
In the preferred embodiment, the refractive index of above-mentioned prism plate is 1.4~1.7.
In the preferred embodiment, the angle between the inclined-plane of above-mentioned light collecting part and the surface of plate body be 35 °~
45.5°。
Another object of the present invention is to there is provided a kind of display device, can make display panel left/right side region brightness pole
Degree weakens, and reaches anti-peeping effect.
A kind of display device, including above-mentioned prism plate.
In the preferred embodiment, above-mentioned display device includes backlight module, and backlight module includes reflecting plate, led
Tabula rasa and prism plate, light guide plate are arranged on reflecting plate, and prism plate is arranged at the top of light guide plate, and the triangular prism of prism plate is located at
Close to the side of light guide plate.
The prism plate of the present invention includes plate body and a plurality of triangular prism being arranged on plate body, and each triangular prism at least one end is provided with
Multistage light collecting part, each light collecting part includes the first prism facets, the second prism facets and inclined-plane, and the first prism facets are mutually with the second prism facets
Angle is set, and inclined-plane is obliquely installed along the length direction of triangular prism, and inclined-plane is connected to the first prism facets and the second prism facets
Between.The prism plate of the present invention can guarantee that the light that display panel is sent concentrates on intermediate region, and display panel left/right lateral areas
Domain to the left/the certain angle of right bank after, the brightness of left/right side region extremely weaken, can effectively prevent the people of right side area from watching
The content of display, reaches anti-peeping effect.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail.
Brief description of the drawings
Fig. 1 is the structural representation of the display device of the present invention.
Fig. 2 is the planar structure schematic diagram of the prism plate of first embodiment of the invention.
Fig. 3 is the side structure schematic view of the prism plate of first embodiment of the invention.
Fig. 4 is the planar structure schematic diagram of the prism plate of second embodiment of the invention.
Fig. 5 is the side structure schematic view of the prism plate of second embodiment of the invention.
Fig. 6 is the schematic diagram of the first light collecting part refracted light of second embodiment of the invention.
Fig. 7 is the schematic diagram of the second light collecting part refracted light of second embodiment of the invention.
Fig. 8 is the side structure schematic view of the prism plate of third embodiment of the invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to the embodiment of prism plate proposed by the present invention and display device, structure, feature and
Its effect, is described in detail as follows:
For the present invention foregoing and other technology contents, feature and effect, in the following preferable reality coordinated with reference to schema
Applying in the detailed description of example to clearly appear from.By the explanation of embodiment, when predetermined mesh can be reached to the present invention
The technological means taken and effect be able to more deeply and it is specific understand, but institute's accompanying drawings are only to provide with reference to saying
It is bright to be used, not for being any limitation as to the present invention.
Fig. 1 is the structural representation of the display device of the present invention.As shown in figure 1, in this example it is shown that device 100,
100 ', 100 " include backlight module 10,10 ', 10 " and the display panel 20 being arranged on backlight module 10,10 ', 10 ".
Backlight module 10,10 ', 10 " include backboard (not shown), reflecting plate 12, light guide plate 13 and prism plate 14,14 ',
14”.Backboard includes bottom plate and side frame, and side frame is connected on bottom plate, and accommodating reflecting plate 12, light guide plate are formed between side frame and bottom plate
13rd, the accommodating cavity of prism plate 14,14 ', 14 ".Reflecting plate 12 is arranged on bottom plate；Light guide plate 13 is arranged on reflecting plate 12；Prism
Plate 14,14 ', 14 " is arranged on light guide plate 13.
Fig. 2 is the planar structure schematic diagram of the prism plate of first embodiment of the invention.Fig. 3 is first embodiment of the invention
The side structure schematic view of prism plate.As shown in Figures 2 and 3, prism plate 14 includes plate body 142 and is arranged on plate body 142
A plurality of triangular prism 143, the surface for being arranged at plate body 142 that each triangular prism 143 is parallel to each other, and the triangular prism 143 of prism plate 14
Positioned at the side close to light guide plate 13.In the present embodiment, one end of each triangular prism 143 is provided with multistage light collecting part 144, each optically focused
Portion 144 includes the first prism facets 101, the second prism facets 102 and inclined-plane 103, and the first prism facets 101 and the second prism facets 102 are mutual
Angled to set, length direction of the inclined-plane 103 along triangular prism 143 is obliquely installed, and is connected to the first prism facets 101 and second
Between prism facets 102.Length direction of each light collecting part 144 along triangular prism 143 is arranged in order setting, each light collecting part 144 it is oblique
Face 103 is tilted towards the center position close to triangular prism 143, and the area equation of inclined-plane 103 of each light collecting part 144.
Further, light collecting part 144 also includes end face 104, and end face 104 is perpendicular to the surface of plate body 142, each light collecting part
144 end face 104 is parallel to each other.End face 104 is in isosceles triangle, and end face 104 is connected to the first prism facets 101 and the second prism
Between face 102；One side of end face 104 is connected with the inclined-plane 103 of adjacent light collecting part 144.In the present embodiment, prism plate 14
Refractive index be that 1.4~1.7, the i.e. refractive index of plate body 142 and triangular prism 143 are 1.4~1.7, according to critical formula sina=
The angle that 1/n can be calculated between the surface on the inclined-plane 103 and plate body 142 that obtain light collecting part 144 is 35 °~45.5 °, be can guarantee that aobvious
Show that the light that panel 20 is sent concentrates on intermediate region, make the left/right side region of display panel 20 to the left/the certain angle of right bank
Afterwards, the brightness of left/right side region extremely weakens, and reaches anti-peeping effect.
Fig. 4 is the planar structure schematic diagram of the prism plate of second embodiment of the invention.As shown in figure 4, in the present embodiment
Prism plate 14 ' is roughly the same with the structure of the prism plate 14 in first embodiment, and difference is the prism plate in the present embodiment
14 ' the two ends of triangular prism 143 ' are respectively equipped with multistage light collecting part 144.
Fig. 5 is the side structure schematic view of the prism plate of second embodiment of the invention.As shown in Figure 4 and Figure 5, Rhizoma Sparganii is defined
The light collecting part 144 at the two ends of post 143 ' is respectively the first light collecting part 144a and the second light collecting part 144b.In the present embodiment, triangular prism
143 ' also include prism portion 145, and prism portion 145 is located between each first light collecting part 144a and each second light collecting part 144b, i.e., and three
Prism 143 ' is made up of multiple first light collecting part 144a, multiple second light collecting part 144b and prism portion 145；First light collecting part 144a
It is located at the two ends in prism portion 145, length of multiple first light collecting part 144a along prism portion 145 respectively with the second light collecting part 144b
Direction is arranged in order setting, and length directions of multiple second light collecting part 144b along prism portion 145 is arranged in order setting.
First light collecting part 144a and the second light collecting part 144b inclined-plane 103 are roughly triangular, each first light collecting part 144a
Tilted with each second light collecting part 144b inclined-plane 103 towards the center position close to triangular prism 143, and the first light collecting part 144a with
Central Symmetry of the second light collecting part 144b inclined-plane 103 along triangular prism 143 is set.As shown in Figure 4 and Figure 5, in the present embodiment
In, the area equation on each first light collecting part 144a and each second light collecting part 144b inclined-plane 103.It is noted that first is poly-
Light portion 144a inclined-plane 103 and the second light collecting part 144b inclined-plane 103 asymmetric can also be set, i.e., the first light collecting part 144a's is oblique
The angle of inclination in face 103 is different from the angle of inclination on the second light collecting part 144b inclined-plane 103, can freely select according to actual needs
Select.
Further, light collecting part 144 also includes end face 104, the surface perpendicular to plate body 142 of end face 104.End face
104 be in isosceles triangle, and end face 104 is connected between the first prism facets 101 and the second prism facets 102, and the side of end face 104
Side is connected with the inclined-plane 103 of adjacent light collecting part 144.In the present embodiment, each first light collecting part 144a and each second light collecting part
144b end face 104 is parallel to each other, the area equation of each first light collecting part 144a and each second light collecting part 144b end face 104.
Further, prism portion 145 includes the prism facets 106 of prism surface 105 and the 4th, the first prism facets 101 and the
Prism surface 105 is coplanar, and the second prism facets 102 and the 4th prism facets 106 are coplanar, that is to say, that the first prism facets 101 and the 3rd
Prism facets 105 are the different zones of the prism facets of triangular prism 143 1, and the second prism facets 102 and the 4th prism facets 106 are triangular prisms
The different zones of 143 another prism facets.In the present embodiment, the prism surface 105 in prism portion 145 also can be with the first prism facets
101 is non-coplanar, and for example the prism surface 105 in prism portion 145 is parallel to the first prism facets 101；4th prism in prism portion 145
Face 106 also can be non-coplanar with the first prism facets 101, and the 4th prism facets 106 in such as prism portion 145 are parallel to the second prism facets
102。
Fig. 6 is the schematic diagram of the first light collecting part refracted light of second embodiment of the invention.Define the first light collecting part 144a
Positioned at the right side of display device 100 '.As shown in fig. 6, the first light collecting part 144a of the present invention is used to make to enter the first light collecting part
The whole directions to the right of 144a light, i.e., be vertically into display panel from the first light collecting part 144a light extreme angles come out
20.According to critical formula sina=1/n, i.e. a=arcsin1/n, such as n=1.53, a=40.8 °；It is reversible according to light path
Understand, when the angle between the first light collecting part 144a inclined-plane 103 and the surface of plate body 142 is 40.8 °, it is ensured that from first
The light extreme angles that light collecting part 144a comes out are just vertically into display panel 20.As shown in fig. 6, when light just vertically enters
When entering display panel 20, from the first light collecting part 144a inclined-plane 103 incident angle of incidence of light substantially 90 °, i.e. incident ray
It is incident approximately along the direction parallel to inclined-plane 103；When the incidence angle of incident ray is less than 90 °, this some light enters the
All direction outgoing to the right after one light collecting part 144a.Therefore, when being watched from the right side of display device 100 ', display panel 20
Brightness extremely weakens, and can effectively prevent the people of right side area from watching the content of display, reach anti-peeping effect.In the present embodiment
In, the refractive index of prism plate 14 ' is that 1.4~1.7, the i.e. refractive index of plate body 142 and triangular prism 143 ' are 1.4~1.7, therefore,
The folder between the surface on the inclined-plane 103 and plate body 142 that obtain the first light collecting part 144a can be calculated according to critical formula sina=1/n
Angle is 35 °~45.5 °, but is not limited thereto.
Fig. 7 is the schematic diagram of the second light collecting part refracted light of second embodiment of the invention.Define the second light collecting part 144b
Positioned at the left side of display device 100 '.As shown in fig. 7, the second light collecting part 144b of the present invention is used to make to enter the second light collecting part
The whole directions to the left of 144b light, i.e., be vertically into display panel from the second light collecting part 144b light extreme angles come out
20.According to critical formula sina=1/n, i.e. a=arcsin1/n, such as n=1.53, a=40.8 °；It is reversible according to light path
Understand, when the angle between the second light collecting part 144b inclined-plane 103 and the surface of plate body 142 is 40.8 °, it is ensured that from second
The light extreme angles that light collecting part 144b comes out are just vertically into display panel 20.As shown in fig. 7, when light just vertically enters
When entering display panel 20, from the second light collecting part 144b inclined-plane 103 incident angle of incidence of light substantially 90 °, i.e. incident ray
It is incident approximately along the direction parallel to inclined-plane 103；When the incidence angle of incident ray is less than 90 °, this some light enters the
All direction outgoing to the left after two light collecting part 144b.Therefore, when being watched from the left side of display device 100 ', display panel 20
Brightness extremely weakens, and can effectively prevent the people of left field from watching the content of display, reach anti-peeping effect.In the present embodiment
In, the refractive index of prism plate 14 ' is that 1.4~1.7, the i.e. refractive index of plate body 142 and triangular prism 143 are 1.4~1.7, therefore, root
The angle between the surface on the inclined-plane 103 and plate body 142 that obtain the second light collecting part 144b can be calculated according to critical formula sina=1/n
For 35 °~45.5 °, but it is not limited thereto.
Fig. 8 is the side structure schematic view of the prism plate of third embodiment of the invention.As shown in figure 8, in the present embodiment
Prism plate 14 " is roughly the same with the structure of the prism plate 14 ' in second embodiment, and difference is that first in the present embodiment gathers
Light portion 144a and the second light collecting part 144b part-structure are different.
Specifically, center pair of the first light collecting part 144a and the second light collecting part 144b inclined-plane 103 " along triangular prism 143 "
Claim to set, and each first light collecting part 144a is not mutually equal with each second light collecting part 144b inclined-plane 103 ", i.e., each first optically focused
Portion 144a and each second light collecting part 144b is gradually reduced towards the center position close to triangular prism 143 ", the area on inclined-plane 103 ".
Light collecting part 144 also includes end face 104 ", the surface perpendicular to plate body 142 of end face 104 ".End face 104 " is in isosceles triangle,
End face 104 " is connected between the first prism facets 101 and the second prism facets 102, and a side of end face 104 " and adjacent optically focused
The inclined-plane 103 " in portion 144 is connected.In the present embodiment, each first light collecting part 144a and each second light collecting part 144b end face 104 "
It is parallel to each other, and each first light collecting part 144a and each second light collecting part 144b is towards the center position close to triangular prism 143 ", should
The area of end face 104 " is gradually reduced.Due to the first light collecting part 144a and the second light collecting part 144b inclined-plane in the present embodiment
103 " areas are in gradual change trend, light that display panel 20 sends or so decay is relatively delayed, and will not reduce optics taste.
The present invention prism plate 14,14 ', 14 " include plate body 142 and be arranged on plate body 142 a plurality of triangular prism 143,
143 ', 143 ", each triangular prism 143,143 ', 143 " at least one end is provided with multistage light collecting part 144, and each light collecting part 144 includes first
Prism facets 101, the second prism facets 102 and inclined-plane 103,103 ", the first prism facets 101 with the second prism facets 102 are at an angle to each other sets
Put, length direction of the inclined-plane 103,103 " along triangular prism 143,143 ', 143 " is obliquely installed, and inclined-plane 103,103 " is connected to
Between first prism facets 101 and the second prism facets 102.The prism plate 14,14 ', 14 " of the present invention can guarantee that display panel 20 is sent
Light concentrate on intermediate region, and the left/right side region of display panel 20 to the left/the certain angle of right bank after, left/right lateral areas
Domain brightness extremely weakens, and can effectively prevent the people of right side area from watching the content of display, reach anti-peeping effect.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Detail in mode, in the range of the technology design of the present invention, can be carried out a variety of simple to technical scheme
Modification, these simple variants belong to protection scope of the present invention.Each described in above-mentioned embodiment is specific
Technical characteristic, in the case of reconcilable, can be combined by any suitable means.In order to avoid unnecessary weight
Multiple, the present invention no longer separately illustrates to various possible combinations.
Claims (10)
1. a kind of prism plate, it is characterised in that including plate body (142) and a plurality of triangular prism being arranged on the plate body (142)
(143,143 ', 143 "), respectively triangular prism (143,143 ', 143 ") at least one end be provided with multistage light collecting part (144), the respectively optically focused
Portion (144) includes the first prism facets (101), the second prism facets (102) and inclined-plane (103,103 "), first prism facets (101)
With second prism facets (102) are at an angle to each other sets, the inclined-plane (103,103 ") is along the triangular prism (143,143 ', 143 ")
Length direction is obliquely installed, and the inclined-plane (103,103 ") is connected to first prism facets (101) and second prism facets (102)
Between.
2. prism plate as claimed in claim 1, it is characterised in that respectively the two ends of the triangular prism (143 ', 143 ") are respectively equipped with
The multistage light collecting part (144), the light collecting part (144) for defining triangular prism (143 ', the 143 ") two ends is respectively the first light collecting part
The inclined-plane (103,103 ") of (144a) and the second light collecting part (144b), first light collecting part (144a) and the second light collecting part (144b)
Tilted towards the center position close to the triangular prism (143 ', 143 ").
3. prism plate as claimed in claim 2, it is characterised in that the inclined-plane (103,103 ") of first light collecting part (144) with
Central Symmetry of the inclined-plane (103,103 ") of second light collecting part (144) along the triangular prism (143 ', 143 ") is set.
4. prism plate as claimed in claim 2, it is characterised in that respectively first light collecting part (144a) and respectively second light collecting part
(144b) is gradually reduced towards the center position close to the triangular prism (143 "), the area on the inclined-plane (103 ").
5. prism plate as claimed in claim 2, it is characterised in that the triangular prism (143,143 ") includes prism portion (145), should
Prism portion (145) is located between first light collecting part (144a) and second light collecting part (144b), and the prism portion (145) includes the
Prism surface (105) and the 4th prism facets (106), first prism facets (101) and the prism surface (105) are coplanar, and this
Two prism facets (102) and the 4th prism facets (106) are coplanar.
6. prism plate as claimed in claim 1, it is characterised in that the light collecting part (144) also includes end face (104,104 "), should
The surface perpendicular to the plate body (142) of end face (104,104 "), the end face (104,104 ") is connected to first prism facets
(101) between second prism facets (102).
7. prism plate as claimed in claim 1, it is characterised in that the refractive index of the prism plate is 1.4~1.7.
8. prism plate as claimed in claim 1, it is characterised in that the inclined-plane (103,103 ") of the light collecting part (144) and the plate
Angle between the surface of body (142) is 35 °~45.5 °.
9. a kind of display device, it is characterised in that including described in claim 1 to 8 any one prism plate (14,14 ',
14”)。
10. display device as claimed in claim 9, it is characterised in that the display device include backlight module (10,10 ',
10 "), the backlight module (10,10 ', 10 ") includes reflecting plate (12), light guide plate (13) and prism plate (14,14 ', 14 "), and this is led
Tabula rasa (13) is arranged on the reflecting plate (12), and the prism plate (14,14 ', 14 ") is arranged at the top of the light guide plate (13), should
The triangular prism (143,143 ', 143 ") of prism plate (14,14 ', 14 ") is located at close to the side of the light guide plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642210.4A CN107219577B (en) | 2017-07-31 | 2017-07-31 | Prism plate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642210.4A CN107219577B (en) | 2017-07-31 | 2017-07-31 | Prism plate and display device |
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| Publication Number | Publication Date |
|---|---|
| CN107219577A true CN107219577A (en) | 2017-09-29 |
| CN107219577B CN107219577B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710642210.4A Active CN107219577B (en) | 2017-07-31 | 2017-07-31 | Prism plate and display device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664672A (en) * | 2004-02-20 | 2005-09-07 | 西铁城电子股份有限公司 | Backlight system |
| CN1683966A (en) * | 2004-04-17 | 2005-10-19 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and back light module |
| CN103901514A (en) * | 2014-03-21 | 2014-07-02 | 京东方科技集团股份有限公司 | Optical prism, prismatic lens, backlight module and liquid crystal display device |
| CN103995311A (en) * | 2014-05-16 | 2014-08-20 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| US20150226972A1 (en) * | 2014-02-07 | 2015-08-13 | Boe Technology Group Co., Ltd. | Backlight module and double vision display device |
-
2017
- 2017-07-31 CN CN201710642210.4A patent/CN107219577B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664672A (en) * | 2004-02-20 | 2005-09-07 | 西铁城电子股份有限公司 | Backlight system |
| CN1683966A (en) * | 2004-04-17 | 2005-10-19 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and back light module |
| US20150226972A1 (en) * | 2014-02-07 | 2015-08-13 | Boe Technology Group Co., Ltd. | Backlight module and double vision display device |
| CN103901514A (en) * | 2014-03-21 | 2014-07-02 | 京东方科技集团股份有限公司 | Optical prism, prismatic lens, backlight module and liquid crystal display device |
| CN103995311A (en) * | 2014-05-16 | 2014-08-20 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107219577B (en) | 2019-11-22 |
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