CN108107623A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN108107623A CN108107623A CN201711401320.8A CN201711401320A CN108107623A CN 108107623 A CN108107623 A CN 108107623A CN 201711401320 A CN201711401320 A CN 201711401320A CN 108107623 A CN108107623 A CN 108107623A
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- China
- Prior art keywords
- display panel
- display device
- light
- display
- light shield
- 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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- 239000010410 layer Substances 0.000 claims description 82
- 239000004973 liquid crystal related substance Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 25
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 230000000007 visual effect Effects 0.000 abstract description 19
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 102000009565 Lysosomal-Associated Membrane Protein 2 Human genes 0.000 description 1
- 108010009491 Lysosomal-Associated Membrane Protein 2 Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
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)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of display device, including the first display panel and the second display panel, first display panel is arranged on second display panel, first display panel is transparent display panel, when first display panel is opened, the second display panel power-off, the display device are wide viewing angle display pattern；When first display panel is closed, second display panel is opened, and the display device is narrow viewing angle display pattern.Display device provided by the invention can realize width visual angle free switching, and can realize ± 30 ° of narrow viewing angle scope, it disclosure satisfy that the use demand at light-emitting display panel display panel width visual angle such as active matrix organic LED panel (AMOLED), organic screen (Micro LED).
Description
Technical field
The present invention relates to the technical field of liquid crystal display, more particularly to a kind of display device.
Background technology
With the continuous progress of LCD technology, the visible angle of display is widened via original 120 ° or so
160 ° or more, while people bring visual experience at the big visual angle of enjoyment, it is also desirable to effectively protection trade secret and individual privacy,
To avoid screen message leaks and caused by business loss or embarrassment.Although present display device is progressively towards the side of wide viewing angle
To development, either mobile terminal of mobile telephone application, display or laptop computer applications on table, but except the demand of wide viewing angle
Outside, also need to the function that display device possesses wide viewing angle and narrow viewing angle mutually switches in many occasions.At present, mainly have following
Several ways, which are realized, switches the wide viewing angle of liquid crystal display device with narrow viewing angle.
The first is to attach blinds Protective film on a display screen to realize.When needing to carry out peep-proof, blocked using blinds
Film, which covers screen, can reduce visual angle.But this mode needs additionally to prepare blinds Protective film, is caused greatly to user
Inconvenience, and a blinds Protective film can only realize a kind of visual angle.After upper blinds Protective film is attached, visual angle just secures,
It can only realize narrow viewing angle pattern, can not just show wide viewing function again.
Second is the visual angle that double light source back light systems is set to be used to adjust liquid crystal display device in liquid crystal display device,
This pair of light source back light system is made of the light guide plate of two-layer laminate with reference to anti-prismatic lens, and top layer light guide plate (LGP-T) combines anti-rib
The trend that eyeglass changes light causes light to be limited in narrow angular range, realizes the narrow viewing angle of liquid crystal display device, and
The function of the anti-prismatic lens of bottom light guide plate (LGP-B) combination then realizes the wide viewing angle of liquid crystal display device.But this double light sources
Back light system can cause the thickness of liquid crystal display device and cost to increase, and do not meet the lightening development of liquid crystal display device and become
Gesture.
The third is that driving electrodes on the panel by liquid crystal display device are divided into two kinds, and one of which is that wide viewing angle is shown
Driving electrodes, another kind be control visual angle electrode, when control visual angle electrode on applying appropriate voltage when may be such that liquid crystal
Showing device generates appropriate light leak, and then realizes the switching of wide viewing angle and narrow viewing angle.But it need to be set on liquid crystal display device
Wide viewing angle shows driving electrodes and control two kinds of electrodes of visual angle electrode, and the aperture opening ratio of liquid crystal display device is reduced, is caused
The panel luminance of liquid crystal display device declines, and processing procedure is also more complicated.
4th kind is the visual angle that Double liquid crystal box is set to be used to adjust liquid crystal display device in liquid crystal display device, the biliquid
Brilliant box is made of the vertical top layer liquid crystal layer of orientation with bottom liquid crystal layer, the voltage being applied to by control on two liquid crystal cells,
And then realize the switching of wide viewing angle and narrow viewing angle.But two layers of liquid crystal layer need to be set on device so that liquid crystal display device
Cost increases, and thickness, power consumption also increase therewith, do not meet the lightening development trend of liquid crystal display device.
In conclusion it can realize that the technology of width view angle switch is suitable for greatly liquid crystal display device (liquid at present
Crystal display, LCD), for self-emission display apparatus such as AMOLED, Micro LED and do not apply to.Therefore, it is necessary to
New technical solution is provided to overcome Yi Shang technical problem in the prior art.
The content of the invention
In view of this, the present invention is directed to propose a kind of display device, to solve such as AMOLED self-luminous in the prior art
Display device can not realize the technical issues of width visual angle free switching.
The present invention provides a kind of display device, including：First display panel and the second display panel, first display surface
Plate is arranged on second display panel, and first display panel is transparent display panel, when first display panel
It opens, the second display panel power-off, the display device is wide viewing angle display pattern；When first display panel closes
It closes, second display panel is opened, and the display device is narrow viewing angle display pattern.
Further, first display panel and second display panel are light-emitting display panel.
Further, first display panel is light-emitting display panel, and second display panel is liquid crystal display
Panel.
Further, first display panel include first substrate, the first light shield layer and the first luminescent layer, described first
Luminescent layer is arranged on the first substrate, and first light shield layer is layered on first luminescent layer.
Further, second display panel include second substrate, the second light shield layer and the second luminescent layer, described second
Light shield layer is arranged on the second substrate, and second luminescent layer is arranged on the second substrate away from second light shield layer
One side, second light shield layer is staggered with second luminescent layer.
Further, an adhesive layer is set between first display panel and second display panel, described first
Light shield layer is bonded with second light shield layer and the adhesive layer, and first display panel and second display panel are glued
It is combined.
Further, the width of first light shield layer is a, and the thickness of second display panel is d, makes the second display
Light leakage phenomena, a >=d do not occur for panel.
Further, the width of second luminescent layer is c, and the display device is made to realize ± 30 ° of narrow viewing angle scope,
c≤0.4d。
Further, second light shield layer sets reflecting surface close to the bottom of second substrate one side, second described in directive
The light of light shield layer is utilized again after the reflective surface.
Further, it is provided with reflecting surface between first light shield layer and first luminescent layer.
Display device provided by the invention, by setting the first display panel and the second display panel, and the first display surface
Board stacking is on the second display panel.When the first display panel is opened, the power-off of the second display panel, light is from the first display panel
It projects, display device is wide viewing angle display pattern；When the first display panel powers off, the second display panel is opened, and light is from second
Display panel projects, and the emergent light at big visual angle is covered by the first light shield layer, and display device is narrow viewing angle display pattern.The present invention's
Display device can realize ± 30 ° of narrow viewing angle scope, it can be achieved that width visual angle free switching, meet the organic hair of active matrix
The use demand at the self-emission display apparatus width visual angles such as near-infrafed photodiodes panel (AMOLED), organic screen (Micro LED).
Description of the drawings
Fig. 1 is the schematic diagram for the display device that the embodiment of the present invention one provides.
Fig. 2 is the schematic diagram of display device provided by Embodiment 2 of the present invention.
Specific embodiment
Technological means and effect used by further to illustrate the present invention to reach predetermined goal of the invention, below in conjunction with
Attached drawing and preferred embodiment to specific embodiment, structure, feature and its effect of the present invention, are described in detail as after.
Fig. 1 is the schematic diagram for the display device that the embodiment of the present invention one provides.As shown in Figure 1, the present invention provides a kind of show
Showing device 100, including the first display panel 10 and the second display panel 20.Wherein, the first display panel 10 is stacked
On two display panels 20, the first display panel 10 is transparent display panel.When the first display panel 10 is opened, the second display panel
During 20 power-off, display device 100 is wide viewing angle display pattern；When the first display panel 10 is closed, the second display panel 20 is opened
When, display device 100 is narrow viewing angle display pattern.
In the present embodiment, the first display panel 10 and the second display panel 20 are light-emitting display panel, such as are had
Machine LED display panel (OLED), but not limited to this.First display panel 10 shines including first substrate 110, first
120 and first light shield layer 130 of layer, the first luminescent layer 120 are arranged on first substrate 110, and the first light shield layer 130 is layered in first
On luminescent layer 120.Specifically, the first luminescent layer 120 includes the first light-emitting component (the non-label of figure) of multiple spaced settings,
The first light shielding part (the non-label of figure) of first light shield layer 130 including multiple spaced settings, the first light shielding part in the present embodiment
With being of same size for the first light-emitting component, every one first light shielding part is stacked on every one first light-emitting component.Wherein, first
The width of light shielding part is a, and the width between two adjacent first light shielding parts is b, and the sum of a and b are the width of a sub-pixel.
Wherein, the second display panel 20 include second substrate 210, the second luminescent layer 220 and the second light shield layer 230, second
Light shield layer 230 is arranged on second substrate 210 close to 110 one side of first substrate, the second light shield layer 230 and the first light shield layer 130
It is oppositely arranged.Second luminescent layer 220 is arranged on the one side away from the second light shield layer 230, the second light shield layer on second substrate 210
230 and the 220 interlaced setting of the second luminescent layer.Preferably, can the first display panel 10 and the second display panel 20 it
Between an adhesive layer 30 is set, the first light shield layer 130 is bonded with the second light shield layer 230 with adhesive layer 30 respectively, by first display
Panel 10 is bonded together with the second display panel 20, and the width a of the first light shield layer 130 is equal to the length of the second light shield layer 230.
Adhesive layer 30 can be arranged to frame patch, but not limited to this.It in other embodiments, can also be by the way of pasting entirely.First is aobvious
After showing that 10 and second display panel 20 of panel is bonded together, the second light shield layer 230 is in the lower section of the first light shield layer 130, makes
It obtains projection of second luminescent layer 220 on first substrate 110 to fall between two adjacent first light shielding parts, the second luminescent layer 220 is sent out
The light gone out can penetrate the gap outgoing on the first light shield layer 130 and the second light shield layer 230.Specifically, the second light shield layer 230 wraps
The second light shielding part (the non-label of figure) of multiple spaced settings is included, the second luminescent layer 220 includes multiple spaced settings
Second light-emitting component (the non-label of figure), projection of second light-emitting component on second substrate 210 is in two adjacent second light shielding parts
Between.
In the present embodiment, to improve light utilization efficiency, a reflection is set among the first light shielding part and the first light-emitting component
Face (not shown) re-uses the light of first the first light shielding part of light-emitting component directive after reflective surface, avoids
The light of one the first light shielding part of light-emitting component directive can not directly be utilized by the absorption of the first light shielding part.Similarly, the second light shield layer 230
Reflecting surface is set close to the bottom of 210 one side of second substrate, makes the light of second the second light shield layer of light-emitting component directive 230 through being somebody's turn to do
It is utilized again after reflective surface.
As shown in Figure 1, the width of the second light-emitting component is c, the thickness of the second display panel 20 is d, in the present embodiment, the
The width of two light shielding parts is equal with the width a of the first light shielding part.To make the second display panel 20 that light leak and mixed color phenomenon not occur,
That is the light that second light-emitting component is sent in the second light shield layer 230 cannot be projected from the open area of adjacent pixel, that is, be needed
Meet a >=d.Specifically as shown in light A in Fig. 1, when light enters optically thinner medium by optically denser medium, when incidence angle θ increases to certain
Kind degree, it may occur that total reflection phenomenon.First substrate 110 and second substrate 210 are glass substrate in the present embodiment, refraction
Rate n=1.4.When the incidence angle of light A is more than 45.6 ° of critical angle, will be totally reflected, that is to say, that the incidence angle of light is big
It cannot be emitted to when 45.6 ° in the first display panel 10, i.e., light leakage phenomena will not occur.
In addition, display device 100 will realize the narrow viewing angle of ± 30 ° of scopes, it is necessary to meet c≤0.4d.By law of refraction sin
θ1/sinθ2=n2/n1 understands that the wherein refractive index n1=1.4 of substrate, the refractive index n2=1.0 of air make the second display panel
20 emergent light angle θ2≤ 30 °, then θ1≤ 21 °, and tan θ1=c/d, tan21 °≤c/d, i.e. c≤0.4d.
Fig. 2 is the schematic diagram of display device provided by Embodiment 2 of the present invention.It is as shown in Fig. 2, first aobvious in the present embodiment
Show panel 10 for light-emitting display panel, such as organic LED display panel (OLED), structure and above-described embodiment
It is identical, it no longer describes herein.Second display panel 20 is liquid crystal display panel (LCD), and the structure of the second display panel 20 is with showing
Some LCD panel are similar, and details are not described herein.In the present embodiment, to enable the light of the second light shield layer of directive 230 in backlight
It is enough to re-use, reflecting surface (not shown) on one side of second light shield layer 230 towards backlight is set, hides directive second
The light of photosphere 230 is utilized again after reflective surface, improves light utilization.Meanwhile to make self luminous first to show
Show that the light that the first light-emitting component 120 of panel 10 is sent is emitted outside towards display panel, hidden in the first light-emitting component 120 and first
Reflecting surface is set on the surface that photosphere 130 contacts, the first light-emitting component 120 is anti-through the reflecting surface to the light that the reflecting surface is sent
It is projected after penetrating outside display device 100, improves the utilization rate of light.
Display device 100 provided by the invention, by setting the first display panel 10 and second aobvious in display device 100
Show panel 20, and the first display panel 10 is layered on the second display panel 20.When the first display panel 10 is opened, second shows
Panel 20 powers off, and light is projected from the first display panel 10, and display device is wide viewing angle display pattern；When the first display panel 10
Power-off, the second display panel 20 are opened, and light is projected from the second display panel 20, and the emergent light at big visual angle is by the first light shield layer
130 maskings, display device 100 are narrow viewing angle display pattern, and narrow viewing angle scope is ± 30 °.First display panel 10 is self-luminous
Display panel, the second display panel 20 can be light-emitting display panel or liquid crystal display panel, and display device of the invention can
It realizes width visual angle free switching, and disclosure satisfy that light-emitting display panel such as active matrix organic LED panel
(AMOLED), the use demand at the self-emission display apparatus width visual angle such as organic screen (Micro LED).
Specific case is applied herein to be set forth the display device and embodiment of the present invention, embodiment of above
Illustrate to be only intended to help the method and its core concept for understanding the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, the there will be changes on specific embodiment and its application range, to sum up, this specification content should not
It is interpreted as limitation of the present invention, protection scope of the present invention should be subject to appended claim.
Claims (10)
1. a kind of display device, which is characterized in that including：First display panel and the second display panel, first display surface
Plate is arranged on second display panel, and first display panel is transparent display panel, when first display panel
It opens, the second display panel power-off, the display device is wide viewing angle display pattern；When first display panel closes
It closes, second display panel is opened, and the display device is narrow viewing angle display pattern.
2. display device as described in claim 1, which is characterized in that first display panel and second display panel
It is light-emitting display panel.
3. display device as described in claim 1, which is characterized in that first display panel is light-emitting display panel,
Second display panel is liquid crystal display panel.
4. display device as claimed in claim 2, which is characterized in that first display panel includes first substrate, first
Light shield layer and the first luminescent layer, first luminescent layer are arranged on the first substrate, and first light shield layer is layered in institute
It states on the first luminescent layer.
5. display device as claimed in claim 4, which is characterized in that second display panel includes second substrate, second
Light shield layer and the second luminescent layer, second light shield layer are arranged on the second substrate, and second luminescent layer is arranged on institute
One side of the second substrate away from second light shield layer is stated, second light shield layer is staggered with second luminescent layer.
6. display device as claimed in claim 5, which is characterized in that first display panel and second display panel
Between an adhesive layer is set, first light shield layer is bonded with second light shield layer with the adhesive layer respectively, by described the
One display panel is bonded together with second display panel.
7. display device as claimed in claim 5, which is characterized in that the width of first light shield layer is a, and described second is aobvious
Show that the thickness of panel for d, makes the second display panel that light leakage phenomena, a >=d not occur.
8. display device as claimed in claim 7, which is characterized in that the width of second luminescent layer is c, makes the display
Device realizes ± 30 ° of narrow viewing angle scope, c≤0.4d.
9. display device as claimed in claim 5, which is characterized in that second light shield layer is close to the bottom of second substrate one side
Portion sets reflecting surface, and the light of the second light shield layer is utilized again after the reflective surface described in directive.
10. display device as claimed in claim 9, which is characterized in that first light shield layer and first luminescent layer it
Between be provided with reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401320.8A CN108107623B (en) | 2017-12-22 | 2017-12-22 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401320.8A CN108107623B (en) | 2017-12-22 | 2017-12-22 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108107623A true CN108107623A (en) | 2018-06-01 |
| CN108107623B CN108107623B (en) | 2020-11-24 |
Family
ID=62211693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401320.8A Active CN108107623B (en) | 2017-12-22 | 2017-12-22 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108107623B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638063A (en) * | 2019-01-15 | 2019-04-16 | 京东方科技集团股份有限公司 | The manufacturing method of display device, display methods and display device |
| WO2020048132A1 (en) * | 2018-09-07 | 2020-03-12 | 深圳Tcl新技术有限公司 | Split-type led display panel and control method thereof |
| CN111061098A (en) * | 2018-10-16 | 2020-04-24 | 群创光电股份有限公司 | Display device |
| CN111190296A (en) * | 2020-02-25 | 2020-05-22 | 深圳市隆利科技股份有限公司 | Peep-proof method for display |
| CN113658518A (en) * | 2021-08-24 | 2021-11-16 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN116709824A (en) * | 2023-03-31 | 2023-09-05 | 惠科股份有限公司 | Display panel and display device |
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| CN113658518A (en) * | 2021-08-24 | 2021-11-16 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN116709824A (en) * | 2023-03-31 | 2023-09-05 | 惠科股份有限公司 | Display panel and display device |
| CN116709824B (en) * | 2023-03-31 | 2024-04-16 | 惠科股份有限公司 | Display panel and display device |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Applicant before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
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