CN109768063A - A kind of two-sided display screen and display device - Google Patents
A kind of two-sided display screen and display device Download PDFInfo
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- CN109768063A CN109768063A CN201910080169.5A CN201910080169A CN109768063A CN 109768063 A CN109768063 A CN 109768063A CN 201910080169 A CN201910080169 A CN 201910080169A CN 109768063 A CN109768063 A CN 109768063A
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- luminescent device
- transparent substrate
- display screen
- luminescent
- sided display
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Abstract
The invention discloses a kind of two-sided display screen and display devices, the two-sided display screen includes: the first transparent substrate and the second transparent substrate being arranged oppositely, and multiple luminescent devices between the first transparent substrate and the second transparent substrate, light-emitting surface the first transparent substrate of direction of luminescent device is the first luminescent device, light-emitting surface the second transparent substrate of direction of luminescent device is the second luminescent device, wherein, the first luminescent device is not overlapped in the orthographic projection on the first transparent substrate with orthographic projection of second luminescent device on the first transparent substrate；First luminescent device includes the first luminescent layer, and the second luminescent device includes the second luminescent layer, wherein the first luminescent layer and the second luminescent layer include graphene nanobelt.By setting graphene nanobelt for the luminescent layer of each luminescent device, the heat resistance of two-sided display screen can be significantly improved, the service life for improving two-sided display screen is conducive to.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of two-sided display screen and display devices.
Background technique
With the development of the social economy, demand of the people to double-sided display is increasing.Such as using display with double faces into
For row cash register with when ordering, guest and salesman can face-to-face Real-Time Sharing information；Billboard uses double-sided display, from different perspectives
Ad content can be presented simultaneously, increase operation rate；When double meeting, two people can be shared face-to-face by same equipment
Information etc..
Two-sided display screen in the related technology can be arranged in pairs or groups using two liquid crystal display die sets, but this kind of mode
Compared to two independent liquid crystal modules only save a metal backing, and other parts are respectively two LED light bars, two liquid crystal
Screen, two groups of optical films, two light guide plates and two reflecting plates, cause the thickness of two-sided display screen excessive, are unfavorable for the light of product
Thinning.Two-sided display screen can be formed using two electroluminescence display panels for this problem, this kind of mode can reduce back
Light source cancels liquid crystal, but this kind of mode is easy to be influenced to lead to service life reduction by temperature.
Therefore, how reduce two-sided display screen thickness on the basis of increase two-sided display screen service life be this field urgently
Technical problem to be solved.
Summary of the invention
The present invention provides a kind of two-sided display screen and display device, uses the longevity to solve two-sided display screen in the related technology
Order low problem.
The embodiment of the invention provides a kind of two-sided display screens, comprising: the first transparent substrate being arranged oppositely and second is thoroughly
Bright substrate, and multiple luminescent devices between first transparent substrate and second transparent substrate, the photophore
Light-emitting surface the first transparent substrate of direction of part is the first luminescent device, light-emitting surface the second transparent base of direction of the luminescent device
Plate is the second luminescent device, wherein orthographic projection of first luminescent device on first transparent substrate and described the
Orthographic projection of two luminescent devices on first transparent substrate does not overlap；
First luminescent device includes the first luminescent layer, and second luminescent device includes the second luminescent layer, wherein institute
Stating the first luminescent layer and second luminescent layer includes graphene nanobelt.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, described
Between one transparent substrate and second transparent substrate further include: for driving the first of first luminescent device to drive crystal
Pipe, and orthographic projection covering of first luminescent device on first transparent substrate the first driving transistor is described
Orthographic projection on first transparent substrate；
Second for driving second luminescent device drives transistor, and second luminescent device is described second
Orthographic projection on transparent substrate covers orthographic projection of the second driving transistor on second transparent substrate.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, described first
Drive transistor between second transparent substrate and first luminescent device；
The second driving transistor is between first transparent substrate and second luminescent device.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, described
One transparent substrate is directed toward on the direction of second transparent substrate, the second driving transistor, second luminescent device, institute
Film layer where stating the first luminescent device and the first driving transistor is cascading.
It in one possible implementation, further include position in above-mentioned two-sided display screen provided in an embodiment of the present invention
Between first luminescent device and second luminescent device, shine respectively with first luminescent device with described second
The transparent pixels confining layers that device is correspondingly arranged.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, described first
Drive transistor and the second driving transistor common grid insulating layer.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, further includes: position
Between first luminescent device and first transparent substrate, and the transparent picture being correspondingly arranged with first luminescent device
Plain confining layers；
Between second luminescent device and second transparent substrate, and corresponding with second luminescent device set
The transparent pixels confining layers set.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, further includes: black
Matrix, the black matrix and the pixel confining layer same layer；
Orthographic projection of the black matrix on first transparent substrate and first luminescent device and second hair
Orthographic projection of the optical device on first transparent substrate is not overlapped.
In one possible implementation, in above-mentioned two-sided display screen provided in an embodiment of the present invention, the graphite
Alkene nanobelt is for issuing white light, the two-sided display screen further include: it is saturating close to described first to be located at first luminescent device
Bright substrate side, and the first color film layer being correspondingly arranged with first luminescent device；
Positioned at second luminescent device close to second transparent substrate side, and it is corresponding with second luminescent device
The color film layer of second be arranged.
On the other hand, the embodiment of the invention also provides a kind of display devices, provide including any of the above-described embodiment double
Face display screen.
The present invention has the beneficial effect that:
The embodiment of the invention provides a kind of two-sided display screen and display device, which includes: to be arranged oppositely
The first transparent substrate and the second transparent substrate, and it is more between first transparent substrate and second transparent substrate
Light-emitting surface the first transparent substrate of direction of a luminescent device, the luminescent device is the first luminescent device, the luminescent device
Light-emitting surface towards the second transparent substrate be the second luminescent device, wherein first luminescent device is transparent described first
Orthographic projection on substrate is not overlapped with orthographic projection of second luminescent device on first transparent substrate；Described first
Luminescent device includes the first luminescent layer, and second luminescent device includes the second luminescent layer, wherein first luminescent layer and institute
Stating the second luminescent layer includes graphene nanobelt.It is right by setting graphene nanobelt for the luminescent layer of each luminescent device
After graphene nanobelt applies voltage, with the change of voltage, luminous intensity changes correspondingly graphene nanobelt, graphene nano
Bandwidth is different, and luminous color is not also identical, while graphene nanobelt has good diamagnetic resistance to thermal property, Ke Yiming
The aobvious heat resistance for improving two-sided display screen is conducive to the service life for improving two-sided display screen.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of two-sided display screen provided in an embodiment of the present invention；
Fig. 2 is the second structural representation of two-sided display screen provided in an embodiment of the present invention；
Fig. 3 is the third structural representation of two-sided display screen provided in an embodiment of the present invention；
Fig. 4 is display device provided in an embodiment of the present invention.
Specific embodiment
For present in the relevant technologies due to the accumulation of two-sided display screen heat cause display panel service life reduction
The problem of, the embodiment of the invention provides a kind of two-sided display screen and display devices.In order to make the purpose of the present invention, technical solution
Clearer with advantage, the present invention will be describe below in further detail with reference to the accompanying drawings, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The shapes and sizes of each component do not react actual proportions in attached drawing, and purpose is schematically illustrate the content of present invention.
The embodiment of the invention provides a kind of two-sided display screens, and as shown in Figure 1 to Figure 3, which includes: opposite direction
The first transparent substrate 1 and the second transparent substrate 2 being arranged, and it is more between the first transparent substrate 1 and the second transparent substrate 2
A luminescent device, the light-emitting surface of luminescent device are the first luminescent device 31 towards the first transparent substrate 1, and luminescent device shines
It is the second luminescent device 32 facing towards the second transparent substrate 2, wherein the first luminescent device 31 is on the first transparent substrate 1
Orthographic projection is not overlapped with orthographic projection of second luminescent device 32 on the first transparent substrate 1；
First luminescent device 31 includes the first luminescent layer 311, and the second luminescent device 32 includes the second luminescent layer 321, wherein
First luminescent layer 311 and the second luminescent layer 321 include graphene nanobelt.
Specifically, in two-sided display screen provided in an embodiment of the present invention, graphene nanobelt is of different size, luminous face
Color is not also identical.It is unit with the armchair graphene (7-atom-wide armchair GNRs) of 7 carbon atom width
Graphene nanobelt can generate photon, photon band gap 1.5-3.2eV under electric field excitation, and corresponding wavelength is 800-
390nm belongs to visible spectrum.Therefore, using the relationship of the bandwidth of graphene nanobelt and launch wavelength, different colours are prepared
Luminescent layer；The luminous photon band gap of graphene nanobelt is related with the length of graphene nanobelt, 7 atom handrails of 12 units
Chair form graphene nanobelt (length is about 25.5A) can emit the light of 442nm or so, belong to blue light under electric field excitation.And
Graphene nanobelt is longer, and the photon band gap of exciting light is smaller, and the wavelength of light is longer.Therefore, it can be received by adjusting graphene
The bandwidth of rice band prepares the luminescent layer of different colours.
The relationship of graphene nanobelt luminous intensity and voltage controls graphite by changing extra electric field polarity and size
The luminous intensity of alkene nanobelt realizes that bright show slinkingly of display screen picture is shown, thus instead of the liquid crystal in common display screen；Such as exist
The photon numbers that graphene nanobelt emits under+2V voltage are about the left and right 8.5 (pC-1eV-1), when applied voltage is -2V, transmitting
Photon numbers be about 0.0075 (pC-1eV-1) left and right.Therefore, can by additional opposed polarity/different size of voltage come
Realize the control of luminous intensity.
Specifically, in two-sided display screen provided in an embodiment of the present invention, which includes: be arranged oppositely
One transparent substrate and the second transparent substrate, and multiple luminescent devices between the first transparent substrate and the second transparent substrate,
The light-emitting surface of luminescent device is the first luminescent device towards the first transparent substrate, and the light-emitting surface of luminescent device is transparent towards second
Substrate is the second luminescent device, wherein orthographic projection of first luminescent device on the first transparent substrate and the second luminescent device
Orthographic projection on the first transparent substrate does not overlap；First luminescent device includes the first luminescent layer, and the second luminescent device includes
Second luminescent layer, wherein the first luminescent layer and the second luminescent layer include graphene nanobelt.By by the hair of each luminescent device
Photosphere is set as graphene nanobelt, after applying voltage to graphene nanobelt, change of the graphene nanobelt with voltage, and hair
Luminous intensity changes correspondingly, and graphene nanobelt is of different size, and luminous color is not also identical, while graphene nanobelt is with good
Good diamagnetic resistance to thermal property, can significantly improve the heat resistance of two-sided display screen, be conducive to the use for improving two-sided display screen
Service life.
It should be noted that first luminescent device transmits light through in two-sided display screen provided in an embodiment of the present invention
First transparent substrate forms display image, and the second luminescent device transmits light through the second transparent substrate and forms display image, thus
Realize the double-sided display of display screen.Certainly, which can be realized simultaneously double-sided display, and front can also be implemented separately
Display or reverse side are shown, are selected, are not specifically limited herein according to actual use scene.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 1 to Figure 3, the first luminescent device 31
It is alternately arranged with the second luminescent device 32, to guarantee the show uniformity of the two sides of two-sided display screen.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 1 to Figure 3, in the first transparent substrate
1 and second between transparent substrate 2 further include: for drive first shine 31 the first driving transistor 41, and the first photophore
Part 31 is in orthographic projection of orthographic projection covering the first driving transistor 41 on the first transparent substrate 1 on the first transparent substrate 1；
Second for driving the second luminescent device 32 drives transistor 42, and the second luminescent device 32 is in the second transparent base
Orthographic projection of orthographic projection covering the second driving transistor 42 on the second transparent substrate 2 on plate 2.
Specifically, in two-sided display screen provided in an embodiment of the present invention, by the first driving transistor setting in the first hair
In the region of optical device covering, the second driving transistor is arranged in the region covered the second luminescent device more, it can be to avoid
Each luminescent device issues light and is blocked by driving transistor, ensure that the aperture opening ratio of display screen.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 1 to Figure 3, the first driving transistor
41 between the second transparent substrate 2 and the first luminescent device 31；
Second driving transistor 42 is between the first transparent substrate 2 and the second luminescent device 32.
Specifically, in two-sided display screen provided in an embodiment of the present invention, thoroughly second by the first driving transistor setting
Between bright substrate and the first luminescent device, formed with guaranteeing that the light of the first luminescent device sending can be penetrated from the first transparent substrate
Show image；Second driving transistor is arranged between the first transparent substrate and the second luminescent device, to guarantee that second shines
The light that device issues can penetrate from the second transparent substrate and form display image.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 1, being directed toward in the first transparent substrate 1
On the direction of second transparent substrate 2, the second driving transistor 42, the second luminescent device 32, the first luminescent device 31 and first are driven
Dynamic 41 place film layer of transistor is cascading.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 1, further including being located at first to shine
Between device 31 and the second luminescent device 32, it is correspondingly arranged respectively with the first luminescent device 31 with the second luminescent device 32 transparent
Pixel confining layer 5.
Specifically, in two-sided display screen provided in an embodiment of the present invention, the first luminescent device and the second luminescent device are equal
It positioned at the middle part of display screen, is separated between the first luminescent device and the second luminescent device by pixel confining layer, is passing through pixel
While confining layers limit the position of each luminescent device, it can prevent short-circuit between the first luminescent device and the second luminescent device.
And one layer of pixel confining layer can be only arranged in this kind of structure, reduce film layer quantity, be advantageously implemented the fibre of two-sided display screen
Thinning.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Fig. 2, the first driving 41 He of transistor
Second driving 42 common grid insulating layer 7 of transistor.
Specifically, in two-sided display screen provided in an embodiment of the present invention, the first driving transistor and the second driving is brilliant
The middle part of display screen is arranged in body pipe, and the first luminescent device and the second luminescent device are located at the two sides at middle part, this kind setting
First driving transistor and the second driving transistor can share certain film layers, to reduce the setting of film layer, to reduce two-sided
The thickness of display screen.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in Figure 2, further includes: be located at first and shine
Between device 31 and the first transparent substrate 1, and the transparent pixels confining layers 5 being correspondingly arranged with the first luminescent device 31；
Between the second luminescent device 32 and the second transparent substrate 2, and it is correspondingly arranged with the second luminescent device 32 saturating
Bright pixel confining layer 5.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as depicted in figs. 1 and 2, further includes: black matrix
6, black matrix 6 and 5 same layer of pixel confining layer；
Orthographic projection of the black matrix 6 on the first transparent substrate 1 and the first luminescent device 31 and the second luminescent device 32 are the
Orthographic projection on one transparent substrate 1 is not overlapped.
Specifically, in two-sided display screen provided in an embodiment of the present invention, by being set in each luminescent device uncovered area
Black matrix is set, the light that can prevent each luminescent device from issuing generates crosstalk, to improve the display effect of display screen.
Optionally, in two-sided display screen provided in an embodiment of the present invention, as shown in figure 3, graphene nanobelt is for sending out
White light out, two-sided display screen further include: be located at the first luminescent device 31 close to 1 side of the first transparent substrate, and shine with first
The color film layer 8 that device 31 is correspondingly arranged；
Positioned at the second luminescent device 32 close to 2 side of the second transparent substrate, and be correspondingly arranged with the second luminescent device 32
Color film layer 8.
Specifically, the graphene nanobelt in two-sided display screen provided in an embodiment of the present invention, in each luminescent device
When emitting white light, color film layer need to be set in luminescent device light-emitting surface side, to realize colored display.
Based on the same inventive concept, as shown in figure 4, the embodiment of the invention also provides a kind of display device, including it is above-mentioned
The two-sided display screen that any embodiment provides.
Specifically, which can be with are as follows: mobile phone, tablet computer, television set, display, laptop, digital phase
Any products or components having a display function such as frame, navigator, are not limited thereto.
Wherein, the principle of the display device and specific embodiment with two-sided display screen phase provided by the above embodiment
Together, therefore reference can be made to the specific embodiment of two-sided display screen provided by the above embodiment is implemented, details are not described herein.
The embodiment of the invention provides a kind of two-sided display screen and display device, which includes: to be arranged oppositely
The first transparent substrate and the second transparent substrate, and it is more between first transparent substrate and second transparent substrate
Light-emitting surface the first transparent substrate of direction of a luminescent device, the luminescent device is the first luminescent device, the luminescent device
Light-emitting surface towards the second transparent substrate be the second luminescent device, wherein first luminescent device is transparent described first
Orthographic projection on substrate is not overlapped with orthographic projection of second luminescent device on first transparent substrate；Described first
Luminescent device includes the first luminescent layer, and second luminescent device includes the second luminescent layer, wherein first luminescent layer and institute
Stating the second luminescent layer includes graphene nanobelt.It is right by setting graphene nanobelt for the luminescent layer of each luminescent device
After graphene nanobelt applies voltage, with the change of voltage, luminous intensity changes correspondingly graphene nanobelt, graphene nano
Bandwidth is different, and luminous color is not also identical, while graphene nanobelt has good diamagnetic resistance to thermal property, Ke Yiming
The aobvious heat resistance for improving two-sided display screen is conducive to the service life for improving two-sided display screen.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of two-sided display screen characterized by comprising the first transparent substrate and the second transparent substrate being arranged oppositely, with
And multiple luminescent devices between first transparent substrate and second transparent substrate, the light-emitting surface of the luminescent device
It is the first luminescent device towards the first transparent substrate, light-emitting surface the second transparent substrate of direction of the luminescent device is second
Luminescent device, wherein orthographic projection of first luminescent device on first transparent substrate and second luminescent device
Orthographic projection on first transparent substrate does not overlap；
First luminescent device includes the first luminescent layer, and second luminescent device includes the second luminescent layer, wherein described the
One luminescent layer and second luminescent layer include graphene nanobelt.
2. two-sided display screen as described in claim 1, which is characterized in that transparent in first transparent substrate and described second
Between substrate further include: for driving the first of first luminescent device to drive transistor, and first luminescent device exists
Orthographic projection on first transparent substrate covers orthographic projection of the first driving transistor on first transparent substrate；
Second for driving second luminescent device drives transistor, and second luminescent device is transparent described second
Orthographic projection on substrate covers orthographic projection of the second driving transistor on second transparent substrate.
3. two-sided display screen as claimed in claim 2, which is characterized in that the first driving transistor is located at described second thoroughly
Between bright substrate and first luminescent device；
The second driving transistor is between first transparent substrate and second luminescent device.
4. two-sided display screen as claimed in claim 3, which is characterized in that be directed toward described second thoroughly in first transparent substrate
On the direction of bright substrate, the second driving transistor, second luminescent device, first luminescent device and described first
Film layer where driving transistor is cascading.
5. two-sided display screen as claimed in claim 4, which is characterized in that further include be located at first luminescent device with it is described
Between second luminescent device, the transparent pixels being correspondingly arranged respectively with first luminescent device and second luminescent device are limited
Given layer.
6. two-sided display screen as claimed in claim 3, which is characterized in that the first driving transistor and second driving
Transistor common grid insulating layer.
7. two-sided display screen as claimed in claim 6, which is characterized in that further include: it is located at first luminescent device and institute
The transparent pixels confining layers stated between the first transparent substrate, and be correspondingly arranged with first luminescent device；
Between second luminescent device and second transparent substrate, and be correspondingly arranged with second luminescent device
Transparent pixels confining layers.
8. two-sided display screen as described in claim 5 or 7, which is characterized in that further include: black matrix, the black matrix and institute
State pixel confining layer same layer；
Orthographic projection of the black matrix on first transparent substrate and first luminescent device and second photophore
Orthographic projection of the part on first transparent substrate is not overlapped.
9. such as the described in any item two-sided display screens of claim 1-7, which is characterized in that the graphene nanobelt is for issuing
White light, the two-sided display screen further include: be located at first luminescent device close to first transparent substrate side, and with institute
State the first luminescent device is correspondingly arranged first color film layer；
Positioned at second luminescent device close to second transparent substrate side, and it is correspondingly arranged with second luminescent device
The second color film layer.
10. a kind of display device, which is characterized in that including the described in any item two-sided display screens of claim 1-9.
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| CN201910080169.5A CN109768063B (en) | 2019-01-28 | 2019-01-28 | Double-sided display screen and display device |
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|---|---|---|---|
| CN201910080169.5A CN109768063B (en) | 2019-01-28 | 2019-01-28 | Double-sided display screen and display device |
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| CN109768063A true CN109768063A (en) | 2019-05-17 |
| CN109768063B CN109768063B (en) | 2021-11-26 |
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| CN110707142A (en) * | 2019-11-13 | 2020-01-17 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
| CN111864035A (en) * | 2020-07-31 | 2020-10-30 | 上海天马微电子有限公司 | Display panel, manufacturing method of display panel and display device |
| CN113921575A (en) * | 2021-09-30 | 2022-01-11 | 惠科股份有限公司 | Double-sided luminous display screen and display device |
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| CN113921575A (en) * | 2021-09-30 | 2022-01-11 | 惠科股份有限公司 | Double-sided luminous display screen and display device |
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| CN109768063B (en) | 2021-11-26 |
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