CN107219577B - Prism plate and display device - Google Patents
Prism plate and display device Download PDFInfo
- Publication number
- CN107219577B CN107219577B CN201710642210.4A CN201710642210A CN107219577B CN 107219577 B CN107219577 B CN 107219577B CN 201710642210 A CN201710642210 A CN 201710642210A CN 107219577 B CN107219577 B CN 107219577B
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- prism
- collecting part
- light collecting
- plate
- facets
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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 equipped 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.Prism plate of the invention can be such that the brightness of display panel left/right side region extremely weakens, and achieve the effect that anti-peeping.The invention further relates to a kind of display devices.
Description
Technical field
The present invention relates to technical field of liquid crystal display, in particular to a kind of prism plate and display device.
Background technique
With the development of society and science and technology, more and more people are various aobvious using such as TV, computer, mobile phone, ipad
Show that terminal is surfed the Internet, sees video etc., the display brightness of various display terminal display screens is required it is also higher and higher, especially in
The brightness of heart point.
In the related technology, various display terminals be improve its display screen display brightness, the prism plate optically focused generallyd use,
The light that light emitting diode (Light Emitting Diode, the abbreviation LED) lamp of backlight module issues is penetrated from prism plate bottom
Enter, assembles light 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 of any position is all the same, makes
It is ineffective to obtain existing display screen left and right sides peep-proof.
Summary of the invention
The object of the present invention is to provide a kind of prism plates, and the brightness of display panel left/right side region can be made extremely to subtract
It is weak, achieve the effect that anti-peeping.
It is that it is realized by adopting the following technical scheme that the present invention, which solves its technical problem,.
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 equipped with more
Section light collecting part, each light collecting part include 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 setting, 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 both ends of the above-mentioned respectively triangular prism are respectively equipped with multistage light collecting part, define three
The light collecting part at prism both 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 tilts.
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 trigone
The center symmetric setting of column.
In the preferred embodiment, above-mentioned each first light collecting part and each second light collecting part are towards close to triangular prism
The area of center position, 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
Between two light collecting parts, prism portion includes third prism facets and the 4th prism facets, and the first prism facets are coplanar with third prism facets, and second
Prism facets are coplanar with the 4th prism facets.
In the preferred embodiment, above-mentioned light collecting part further 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 provide a kind of display devices, can make display panel left/right side region brightness pole
Degree weakens, and achievees the effect that anti-peeping.
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, leads
Tabula rasa and prism plate, light guide plate are arranged on reflecting plate, and prism plate is set to the top of light guide plate, and the triangular prism of prism plate is located at
Close to the side of light guide plate.
Prism plate of the invention includes plate body and a plurality of triangular prism that is arranged on plate body, and each triangular prism at least one end is equipped with
Multistage light collecting part, each light collecting part include the first prism facets, the second prism facets and inclined-plane, and the first prism facets are mutually with the second prism facets
Angle setting, 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 light that prism plate of the invention can guarantee that display panel issues concentrates on intermediate region, and display panel left/right lateral areas
Domain to the left/the certain angle of right bank after, left/right side region brightness extremely weakens, and can effectively prevent people's viewing of right area
The content of display achievees the effect that anti-peeping.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, it is described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of display device of the 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.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the specific embodiment of prism plate proposed according to the present invention and display device, structure, feature and
Its effect, detailed description are as follows:
For the present invention aforementioned and other technology contents, feature and effect refer to the preferable reality of schema in following cooperation
Applying in the detailed description of example can clearly appear from.By the explanation of specific embodiment, when predetermined mesh can be reached to the present invention
The technical means and efficacy taken be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say
It is bright to be used, it is not intended to limit the present invention.
Fig. 1 is the structural schematic diagram of display device of the invention.As shown in Figure 1, in this example it is shown that device 100,
100 ', 100 " include the display panel 20 of backlight module 10,10 ', 10 " and setting 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
13, the accommodating cavity of prism plate 14,14 ', 14 ".Reflecting plate 12 is arranged in 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 set to 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 equipped 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 mutually
Angled setting, inclined-plane 103 is obliquely installed along the length direction of triangular prism 143, and is connected to the first prism facets 101 and second
Between prism facets 102.Each light collecting part 144 is arranged successively setting along the length direction of triangular prism 143, each light collecting part 144 it is oblique
Face 103 is tilted towards the center position close to triangular prism 143, and 103 area equation of inclined-plane of each light collecting part 144.
Further, light collecting part 144 further includes an end face 104, surface of the end face 104 perpendicular to 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；A side of end face 104 is connect with the inclined-plane 103 of adjacent light collecting part 144.In the present embodiment, prism plate 14
Refractive index be 1.4~1.7, i.e., the refractive index of plate body 142 and triangular prism 143 be 1.4~1.7, according to critical formula sina=
The angle that 1/n can be calculated between the inclined-plane 103 of light collecting part 144 and the surface of plate body 142 is 35 °~45.5 °, be can guarantee aobvious
Show panel 20 issue light concentrate on intermediate region, make 20 left/right side region of display panel to the left/the certain angle of right bank
Afterwards, the brightness of left/right side region extremely weakens, and achievees the effect that anti-peeping.
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 prism plate 14 in first embodiment, and difference is in prism plate in this present embodiment
14 ' 143 ' both ends of triangular prism 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, trigone is defined
The light collecting part 144 at 143 ' both ends of column is respectively the first light collecting part 144a and the second light collecting part 144b.In the present embodiment, triangular prism
143 ' further include prism portion 145, and prism portion 145 is between each first light collecting part 144a and each second light collecting part 144b, i.e., and three
Prism 143 ' is made of multiple first light collecting part 144a, multiple second light collecting part 144b and prism portion 145；First light collecting part 144a
Be located at the both ends in prism portion 145 with the second light collecting part 144b, multiple first light collecting part 144a along prism portion 145 length
Direction is arranged successively setting, and multiple second light collecting part 144b are arranged successively setting along the length direction in prism portion 145.
The inclined-plane 103 of first light collecting part 144a and the second light collecting part 144b are roughly triangular, each first light collecting part 144a
Tilted with the inclined-plane 103 of each second light collecting part 144b towards the center position close to triangular prism 143, and the first light collecting part 144a with
The inclined-plane 103 of second light collecting part 144b along triangular prism 143 center symmetric setting.As shown in Figure 4 and Figure 5, in the present embodiment
In, the area equation on the inclined-plane 103 of each first light collecting part 144a and each second light collecting part 144b.It is noted that first is poly-
The inclined-plane 103 of light portion 144a and the inclined-plane 103 of the second light collecting part 144b asymmetric can also be arranged, i.e., the first light collecting part 144a's is oblique
The tilt angle in face 103 can be selected freely according to actual needs different from the tilt angle on the inclined-plane 103 of the second light collecting part 144b
It selects.
Further, light collecting part 144 further includes an 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 connect 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
The end face 104 of 144b is parallel to each other, the area equation of the end face 104 of each first light collecting part 144a and each second light collecting part 144b.
Further, prism portion 145 includes third prism facets 105 and the 4th prism facets 106, the first prism facets 101 and the
Prism surface 105 is coplanar, and the second prism facets 102 are coplanar with the 4th prism facets 106, that is to say, that the first prism facets 101 and third
Prism facets 105 are the different zones of 143 1 prism facets of triangular prism, 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 third prism facets 105 in prism portion 145 can also be with the first prism facets
101 is non-coplanar, such as the third prism facets 105 in prism portion 145 are parallel to the first prism facets 101；4th prism in prism portion 145
Face 106 can also be non-coplanar with the first prism facets 101, such as the 4th prism facets 106 in 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 invention enters the first light collecting part for making
All side direction, i.e., the light extreme angles come out from the first light collecting part 144a are vertically into display panel to the light of 144a to the right
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 optical path
It is found that when the angle between the inclined-plane 103 of the first light collecting part 144a 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 into
When entering display panel 20, angle of incidence of light substantially 90 °, i.e. incident ray incident from the inclined-plane of the first light collecting part 144a 103
It is incident approximately along the direction for being parallel to inclined-plane 103；When the incidence angle of incident ray is less than 90 °, this some light enters the
All side direction is emitted 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 the people that can effectively prevent right area watches the content of display, achievees the effect that anti-peeping.In the present embodiment
In, the refractive index of prism plate 14 ' is 1.4~1.7, i.e., the refractive index of plate body 142 and triangular prism 143 ' is 1.4~1.7, therefore,
The folder between the inclined-plane 103 of the first light collecting part 144a and the surface of plate body 142 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 invention enters the second light collecting part for making
All side direction, i.e., the light extreme angles come out from the second light collecting part 144b are vertically into display panel to the light of 144b to the left
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 optical path
It is found that when the angle between the inclined-plane 103 of the second light collecting part 144b 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 into
When entering display panel 20, angle of incidence of light substantially 90 °, i.e. incident ray incident from the inclined-plane of the second light collecting part 144b 103
It is incident approximately along the direction for being parallel to inclined-plane 103；When the incidence angle of incident ray is less than 90 °, this some light enters the
All side direction is emitted 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 the people that can effectively prevent left area watches the content of display, achievees the effect that anti-peeping.In the present embodiment
In, the refractive index of prism plate 14 ' is 1.4~1.7, i.e., the refractive index of plate body 142 and triangular prism 143 is 1.4~1.7, therefore, root
The angle between the inclined-plane 103 of the second light collecting part 144b and the surface of plate body 142 can be calculated according to critical formula sina=1/n
It is 35 °~45.5 °, but 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 poly- in first in this present embodiment
The part-structure of light portion 144a and the second light collecting part 144b are different.
Specifically, the inclined-plane 103 " of the first light collecting part 144a and the second light collecting part 144b along triangular prism 143 " center pair
Claim setting, and each first light collecting part 144a is not mutually equal with the inclined-plane 103 " of each second light collecting part 144b, 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 further includes an 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 connects.In the present embodiment, the end face 104 " of each first light collecting part 144a and each second light collecting part 144b
It is parallel to each other, and each first light collecting part 144a and each second light collecting part 144b is somebody's turn to do towards the center position close to triangular prism 143 "
The area of end face 104 " is gradually reduced.By the inclined-plane of the first light collecting part 144a and the second light collecting part 144b in this present embodiment
103 " areas are in gradual change trend, and light for issuing display panel 20 or so decaying is relatively slow, will not reduce optics taste.
Prism plate 14,14 ', 14 " of the invention 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 equipped 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
It sets, inclined-plane 103,103 " is obliquely installed along the length direction of triangular prism 143,143 ', 143 ", and inclined-plane 103,103 " is connected to
Between first prism facets 101 and the second prism facets 102.Prism plate 14,14 ', 14 " of the invention can guarantee that display panel 20 issues
Light concentrate on intermediate region, and 20 left/right side region of display panel to the left/the certain angle of right bank after, left/right lateral areas
Domain brightness extremely weakens, and the people that can effectively prevent right area watches the content of display, achievees the effect that anti-peeping.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Detail in mode can carry out technical solution of the present invention a variety of simple within the scope of the technical concept of the present invention
Modification, these simple variants all belong to the scope of protection of the present invention.It is as described in the above specific embodiments each specific
Technical characteristic can be combined in any appropriate way in the case of no contradiction.In order to avoid unnecessary heavy
Multiple, the invention will not be further described in various possible combinations.
Claims (10)
1. a kind of prism plate, which is characterized 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 is equipped with multistage light collecting part (144), respectively the 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 the second prism facets (102) setting at an angle to each other, 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 described in claim 1, which is characterized in that respectively the both 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 ") both ends is respectively the first light collecting part
(144a) and the second light collecting part (144b), the inclined-plane (103,103 ") of first light collecting part (144a) and the second light collecting part (144b)
It is tilted towards the center position close to the triangular prism (143 ', 143 ").
3. prism plate as claimed in claim 2, which is characterized in that the inclined-plane (103,103 ") of first light collecting part (144) with
The inclined-plane (103,103 ") of second light collecting part (144) along the triangular prism (143 ', 143 ") center symmetric setting.
4. prism plate as claimed in claim 2, which is characterized 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, which is characterized 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), which includes the
Prism surface (105) and the 4th prism facets (106), first prism facets (101) are coplanar with the third prism facets (105), this
Two prism facets (102) are coplanar with the 4th prism facets (106).
6. prism plate as described in claim 1, which is characterized in that the light collecting part (144) further includes end face (104,104 "), should
Perpendicular to the surface of the plate body (142), which is connected to first prism facets (101) for end face (104,104 ")
Between second prism facets (102).
7. prism plate as described in claim 1, which is characterized in that the refractive index of the prism plate is 1.4~1.7.
8. prism plate as described in claim 1, which is characterized in that the inclined-plane (103,103 ") and the plate of the light collecting part (144)
Angle between the surface of body (142) is 35 °~45.5 °.
9. a kind of display device, which is characterized in that including prism plate described in claim 1 to 8 any one (14,14 ',
14”)。
10. display device as claimed in claim 9, which is characterized in that the display device include backlight module (10,10 ',
10 "), which includes reflecting plate (12), light guide plate (13) and prism plate (14,14 ', 14 "), this is led
Tabula rasa (13) is arranged on the reflecting plate (12), which is set to 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 |
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| 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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| CN107219577A CN107219577A (en) | 2017-09-29 |
| CN107219577B true CN107219577B (en) | 2019-11-22 |
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Citations (4)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838034A (en) * | 2014-02-07 | 2014-06-04 | 京东方科技集团股份有限公司 | Backlight module and dual-view display device |
-
2017
- 2017-07-31 CN CN201710642210.4A patent/CN107219577B/en active Active
Patent Citations (4)
| 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 |
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| CN107219577A (en) | 2017-09-29 |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |