CN104965342B - A kind of display device - Google Patents
A kind of display device Download PDFInfo
- Publication number
- CN104965342B CN104965342B CN201510399206.0A CN201510399206A CN104965342B CN 104965342 B CN104965342 B CN 104965342B CN 201510399206 A CN201510399206 A CN 201510399206A CN 104965342 B CN104965342 B CN 104965342B
- Authority
- CN
- China
- Prior art keywords
- roller
- backlight
- display device
- prism film
- motor
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention provides a kind of display device, is related to technical field of liquid crystal display, realizes that visual angle is adjustable simultaneously, it is ensured that the thickness of LCDs will not increase, and saves cost of manufacture.Including：The backlight and liquid crystal cell being oppositely arranged, and prism film；The prism film includes first surface and second surface, and incidence angle of the light on the second surface is more than the angle of emergence of the light on the first surface；Also include regulating member, the regulating member is used to the prism film being arranged at side of the backlight away from the liquid crystal cell, or the prism film is arranged between the backlight and the liquid crystal cell and the first surface deviates from the backlight；The regulating member is arranged at the side of the backlight.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of display device.
Background technology
Liquid crystal display has been widely used for the various aspects of life as a kind of important flat-panel display device.With
This simultaneously, the viewing angle characteristic of liquid crystal display is also increasingly paid attention to.On the one hand, in privately owned occasion, it is desirable to show utensil
There is a narrower angular field of view, so only just can just see information above clearly to the people of screen, and bystander can not watch, from
And individual privacy is protected, improve Information Security.On the other hand, in public, we to wish that display can have again wider
Visual angle, so facilitates many people while appreciating display content.Address that need, the display of variable visual angle arises at the historic moment.
At present, it is the addition viewing angle control device module on backlight module, by controlling the light propagation side in backlight module
To obtain different visual angles.But viewing angle control thickness of detector is thicker, the thickness of LCDs is added, and due to
The cost of manufacture that viewing angle control device also increases LCDs is set up in LCDs.
The content of the invention
The embodiment of the present invention provides a kind of display device, realizes that visual angle is adjustable simultaneously, it is ensured that the thickness of LCDs
Degree will not increase, and save cost of manufacture.
In a first aspect, a kind of display device is disclosed, including：The backlight and liquid crystal cell being oppositely arranged, and prism film；
The prism film includes first surface and second surface, and incidence angle of the light on the second surface is more than the light in institute
State the angle of emergence on first surface；
Also include regulating member, the regulating member is used to the prism film being arranged at the backlight away from the liquid
The side of brilliant box, or by the prism film be arranged between the backlight and the liquid crystal cell and the first surface deviate from institute
State backlight.
With reference in a first aspect, in the first possible implementation of first aspect, the regulating member is roller group,
The roller group is arranged at the side of the backlight, including the first roller and the second roller being disposed adjacent；First rolling
Relatively described second roller of wheel is away from the backlight；
The prism film is folded between first roller and second roller.
With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect
In, in addition to the first motor and the second motor, first motor are coaxially connected with first roller, drive first rolling
Wheel turns clockwise；Second motor is coaxially connected with second roller, drives the second roller rotate counterclockwise；
Or, first motor is coaxially connected with first roller, the first roller rotate counterclockwise is driven；It is described
Second motor is coaxially connected with second roller, drives second roller to turn clockwise.
With reference in a first aspect, in the third possible implementation of first aspect, the regulating member is the 3rd rolling
Wheel, one end of the prism film is fixedly connected with the 3rd roller, and the other end of the prism film is arranged on the backlight
Between the liquid crystal cell.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect
In, the display device also includes the 3rd motor, and the 3rd motor is connected with the 3rd roller, for driving the described 3rd
Roller rotate counterclockwise turns clockwise.
Any of first to fourth kind of possible implementation with reference to first aspect, at the 5th kind of first aspect
In possible implementation, the display device also includes receiving part, and the receiving part is used to receive regarding for user's input
Angle setting command, so that the regulating member adjusts the position of the prism film, is presented regarding for the visual angle setting command instruction
Angle.
With reference in a first aspect, in the 6th kind of possible implementation of first aspect, the display device also includes connecing
Part is received, the receiving part is used for the visual angle setting command for receiving user's input, so that the regulating member adjusts the rib
The position of mirror film, is presented the visual angle that the visual angle setting command is indicated.
The embodiment of the present invention provides a kind of display device, including：The backlight and liquid crystal cell being oppositely arranged, and prism
Film.Wherein, the prism film includes first surface and second surface, and incidence angle of the light on the second surface is more than described
The angle of emergence of light on the first surface.Also include regulating member, the regulating member is used to set the prism film
In side of the backlight away from the liquid crystal cell, or by the prism film be arranged at the backlight and the liquid crystal cell it
Between and the first surface deviate from the backlight.The thicker viewing angle control of thickness is added on backlight module compared with prior art
Device module realizes wide, narrow viewing angle, adds the thickness of LCDs, and the display device that the present invention is provided sets up regulating member,
Prism film in backlight module is set to movable structure, and then realizes wide, narrow viewing angle, without setting up other influences display dress
The module of thickness is put, it is cost-effective.
Brief description of the drawings
Fig. 1 is the structural representation of display device provided in an embodiment of the present invention；
Fig. 2 is the principle schematic of prism film provided in an embodiment of the present invention；
Fig. 3 is the structural representation of another display device provided in an embodiment of the present invention；
Fig. 4 is the structural representation of another display device provided in an embodiment of the present invention；
Fig. 5 is the operation principle schematic diagram of display device provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of display device, as shown in figure 1, the display device 10 includes：It is oppositely arranged
Backlight 101 and liquid crystal cell 102, and prism film 103.The prism film 103 includes first surface 1031 and second surface
1032, incidence angle of the light on the second surface 1032 is more than outgoing of the light on the first surface 1031
Angle.
Display device 10 also includes regulating member 104, and the regulating member is described for the prism film 103 to be arranged at
Side of the backlight 101 away from the liquid crystal cell 102, or the prism film 103 is arranged at the backlight 101 and the liquid
Between brilliant box 102 and the first surface 1031 deviate from the backlight 101.The regulating member 104 is located at the backlight
101 side, the side of the backlight 101 is the first side 1011 or the second side 1012 of the backlight 101.
It should be noted that the prism film 103 plays the role of to converge light, visual angle can be reduced and realize narrow viewing angle.When
The prism film 103 is located at side of the backlight away from the liquid crystal cell 102, and light is projected from the backlight 101, penetrated
Enter liquid crystal cell 102, presentation is wide viewing angle.When the prism film 103 be located at the backlight 101 and the liquid crystal cell 102 it
Between, light is projected from the backlight 101, injects the second surface 1032 of the prism film, through the prism film 103 from institute
The first surface 1031 for stating prism film 103 is projected.Last light injects liquid crystal cell 102, because prism film 103 has convergence to light
Effect, therefore now present is narrow viewing angle.
As shown in Fig. 2 being the principle schematic for the prism film 103 that the present invention is provided.The first surface of the prism film 103
At least one triangular groove 10310 is provided with 1031, the section of the groove is triangle.So that light second surface
Incidence angle on 1032 is more than the angle of emergence on the first surface 1031.Example, as shown in Fig. 2 light 1,2,3,4 from
The second surface 1032 of prism film 103 is injected, then is accumulated when being projected from first surface 1031.The material of the prism film is
Acrylic resin, the drift angle of the triangular groove 10310 can be 90 degree, between the minimum point of the adjacent triangular groove
Distance can be 50um.Exemplary, angle A=angles B=90 degree, AB=50um.
As shown in figure 3, being another structural representation for the display device 10 that the present invention is provided.Wherein, the regulating member
104 be roller group, and the roller group includes the first roller 1041 and the second roller 1042 being disposed adjacent, first roller
1041 relatively described second rollers 1042 are away from the backlight.The prism film be folded in first roller 1041 with it is described
Between second roller 1042.As shown in figure 3, the side of the backlight 101 is the first side 1011 or the of the backlight 101
Two sides 1012.
In addition, the display device shown in Fig. 3 also includes the first motor and the second motor, first motor and described first
Roller 1041 is coaxially connected, and drives first roller 1041 to turn clockwise；Second motor and second roller
1042 is coaxial connected, drives the rotate counterclockwise of the second roller 1042.
Or, first motor with first roller 1041 is coaxial is connected, drive first roller 1041 counterclockwise
Rotation；Second motor with second roller 1042 is coaxial is connected, drive second roller 1042 to turn clockwise.
As shown in figure 4, being another structural representation for the display device 10 that the present invention is provided.Wherein, the regulating member
104 be the 3rd roller 1043.One end of the prism film 103 is fixedly connected with the 3rd roller 1043, the prism film 103
The other end be arranged between the backlight 101 and the liquid crystal cell 102.In concrete application, the 3rd roller 1043 is used for will
The prism film 103 is all wrapped on the 3rd roller 1043, or the prism that will be wrapped on the 3rd roller
Film 103 is put between the backlight 101 and the liquid crystal cell 102.
In addition, display device shown in Fig. 4, which also includes the display device, also includes the 3rd motor, the 3rd motor with
3rd roller 1043 is coaxially connected, for driving the rotate counterclockwise of the 3rd roller 1043 or turning clockwise.
In addition, the display device 10 also includes receiving part, the receiving part is used for the visual angle for receiving user's input
Setting command, so that the regulating member adjusts the position of the prism film, is presented the visual angle that the visual angle setting command is indicated.
In concrete application, the display device with reference to shown in Fig. 3, if the visual angle that the receiving part is received sets instruction to indicate visual angle
Narrow viewing angle is set to, the first motor then drives the rotate counterclockwise of the first roller 1041, and the second motor drives second roller
1042 are turned clockwise, and the prism film 103 is put between the backlight 101 and the liquid crystal cell 102.If described receive
The visual angle that part is received sets instruction to indicate visual angle being set to wide viewing angle, and the first motor then drives the up time of the first roller 1041
Pin rotates, and the second motor drives the rotate counterclockwise of the second roller 1042, by the prism film 103 from the backlight 101
Extracted out between the liquid crystal cell 102, be arranged at side of the backlight 101 away from the liquid crystal cell 102.
The operation principle schematic diagram of display device 10 is illustrated in figure 5, to be arranged at the backlight 101 remote when prism film
The side of the liquid crystal cell 102, light is emitted directly toward liquid crystal cell 102 from backlight 101, and light will not be accumulated, now show
What device showed is wide viewing angle.As shown in figure 5, when prism film be arranged at the backlight 101 and the liquid crystal cell 102 it
Between, light injects liquid crystal cell 102 by prism film 101, therefore light is accumulated, and what now display device showed is narrow regard
Angle.
The embodiment of the present invention provides a kind of display device, including：The backlight and liquid crystal cell being oppositely arranged, and prism
Film.Wherein, the prism film includes first surface and second surface, and incidence angle of the light on the second surface is more than described
The angle of emergence of light on the first surface.Also include regulating member, the regulating member is used to set the prism film
In side of the backlight away from the liquid crystal cell, or by the prism film be arranged at the backlight and the liquid crystal cell it
Between and the first surface deviate from the backlight.The thicker viewing angle control of thickness is added on backlight module compared with prior art
Device module realizes wide, narrow viewing angle, adds the thickness of LCDs, and the display device that the present invention is provided sets up regulating member,
Prism film in backlight module is set to movable structure, and then realizes wide, narrow viewing angle, without setting up other influences display dress
The module of thickness is put, it is cost-effective.
Claims (7)
1. a kind of display device, it is characterised in that including：The backlight and liquid crystal cell being oppositely arranged, and prism film；The rib
Mirror film includes first surface and second surface, and incidence angle of the light on the second surface is more than the light described first
The angle of emergence on surface；
Also include regulating member, the regulating member is used to the prism film being arranged at the backlight away from the liquid crystal cell
Side, or by the prism film be arranged between the backlight and the liquid crystal cell and the first surface deviate from the back of the body
Light source；The regulating member is arranged at the side of the backlight.
2. display device according to claim 1, it is characterised in that the regulating member is roller group, including adjacent set
The first roller and the second roller put；Relatively described second roller of first roller is away from the backlight；
The prism film is folded between first roller and second roller.
3. display device according to claim 2, it is characterised in that also including the first motor and the second motor, described
One motor is coaxially connected with first roller, drives first roller to turn clockwise；Second motor and described the
Second wheel is coaxially connected, and drives the second roller rotate counterclockwise；
Or, first motor is coaxially connected with first roller, the first roller rotate counterclockwise is driven；Described second
Motor is coaxially connected with second roller, drives second roller to turn clockwise.
4. display device according to claim 1, it is characterised in that the regulating member is the 3rd roller, the prism
One end of film is fixedly connected with the 3rd roller, and the other end of the prism film is arranged on the backlight and the liquid crystal cell
Between.
5. display device according to claim 4, it is characterised in that the display device also includes the 3rd motor, described
3rd motor is coaxially connected with the 3rd roller, for driving the 3rd roller rotate counterclockwise or turning clockwise.
6. the display device according to claim any one of 1-5, it is characterised in that the display device also includes acceptance division
Part, the receiving part is used for the visual angle setting command for receiving user's input, so that the regulating member adjusts the prism film
Position, the visual angle that the visual angle setting command is indicated is presented.
7. display device according to claim 1, it is characterised in that the material of the prism film is acrylic resin；
Triangular groove is provided with the first surface of the prism film, the drift angle of the triangular groove is 90 degree, adjacent
Distance between the minimum point of the triangular groove is 50um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399206.0A CN104965342B (en) | 2015-07-08 | 2015-07-08 | A kind of display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399206.0A CN104965342B (en) | 2015-07-08 | 2015-07-08 | A kind of display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104965342A CN104965342A (en) | 2015-10-07 |
| CN104965342B true CN104965342B (en) | 2017-09-29 |
Family
ID=54219381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510399206.0A Expired - Fee Related CN104965342B (en) | 2015-07-08 | 2015-07-08 | A kind of display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104965342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505772A (en) * | 2017-09-11 | 2017-12-22 | 昆山龙腾光电有限公司 | The liquid crystal display device of prism microstructure and the application prism microstructure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5671028A (en) * | 1994-05-11 | 1997-09-23 | Sharp Kabushiki Kaisha | Liquid crystal display including a control member for providing a transparent visual range within a predetermined viewing angle and an opaque visual range outside the predetermined viewing angle |
| CN1888939A (en) * | 2005-06-29 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Prism sheet and backlight unit using the same |
| CN101542194A (en) * | 2007-01-19 | 2009-09-23 | 索尼株式会社 | Light control element, surface light source device and liquid crystal display |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI287652B (en) * | 1995-09-11 | 2007-10-01 | Hitachi Ltd | Color liquid crystal display device |
| TWI439735B (en) * | 2010-07-01 | 2014-06-01 | Entire Technology Co Ltd | Lenticular array device and backlight module |
-
2015
- 2015-07-08 CN CN201510399206.0A patent/CN104965342B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5671028A (en) * | 1994-05-11 | 1997-09-23 | Sharp Kabushiki Kaisha | Liquid crystal display including a control member for providing a transparent visual range within a predetermined viewing angle and an opaque visual range outside the predetermined viewing angle |
| CN1888939A (en) * | 2005-06-29 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Prism sheet and backlight unit using the same |
| CN101542194A (en) * | 2007-01-19 | 2009-09-23 | 索尼株式会社 | Light control element, surface light source device and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104965342A (en) | 2015-10-07 |
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Granted publication date: 20170929 |