CN108962938A - The panel construction and display device of double-sided display - Google Patents
The panel construction and display device of double-sided display Download PDFInfo
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- CN108962938A CN108962938A CN201711436899.1A CN201711436899A CN108962938A CN 108962938 A CN108962938 A CN 108962938A CN 201711436899 A CN201711436899 A CN 201711436899A CN 108962938 A CN108962938 A CN 108962938A
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- 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
Abstract
The present invention relates to a kind of panel construction of double-sided display and display devices.The panel construction of the double-sided display includes driving circuit, and the substrate, first electrode layer, the first luminescent layer, reflective pixel electrode layer, the second luminescent layer and the second electrode lay that are stacked；The driving circuit is connected to the reflective pixel electrode layer.The double face display panel structure can realize frivolous double-sided display, and manufacturing cost is low while guaranteeing display effect.
Description
Technical field
The present invention relates to field of display technology, more particularly to the panel construction and display device of double-sided display.
Background technique
OLED display device has self-luminous, brightness height, fast response time, wide viewing angle, low-power consumption and flexible realization soft
Property such as shows at the characteristics, is known as " dreamlike display ", has obtained the favor of major display producer, it has also become field of display technology
The main force of middle third generation display device.
Currently, OLED is mainly based on one side show, but the form of electronic product tends to diversification, double-sided display function at
For the valuable feature of new generation electronic product.For example, the double-side display device of interior of mobile phone can show the mobile phone function of tonic chord on one side
Window, another side show the time；For example, can see exhibition by the personnel of display two sides using display with double faces in public
The various contents shown.
Industry double-side display device produced is usually that two one side show panels are composed patch at present.Using two
A one side show panel back-to-back to patch assembling formed double-side display device, structure is thicker and weight is larger, manufacture at
This height does not meet the desired frivolous requirement with high performance-price ratio of consumer.
Summary of the invention
Based on this, it is necessary to provide a kind of double face display panel structure, which can guarantee to show
While showing effect, frivolous double-sided display is realized, and manufacturing cost is low.
A kind of panel construction of double-sided display, including driving circuit, and be stacked substrate, first electrode layer,
One luminescent layer, reflective pixel electrode layer, the second luminescent layer and the second electrode lay；The driving circuit is connected to the reflective pixel
Electrode layer.
The material of the reflective pixel electrode layer is Al, Al alloy, in Ag, Ag alloy in one of the embodiments,
It is at least one.
In one of the embodiments, the reflective pixel electrode layer with a thickness of 50-300nm.
The material of the first electrode layer is at least one of ITO, IZO in one of the embodiments,.
The material of the second electrode lay is ITO, IZO, Al, Al alloy, Ag, Ag alloy in one of the embodiments,
At least one of.
In one of the embodiments, the second electrode lay with a thickness of 15-25nm.
The panel construction of the double-sided display in one of the embodiments, further includes the first pixel defining layer and the
Two pixel defining layers；
First pixel defining layer is set on the substrate, including for the first electrode layer and the first hair to be arranged
First pixel chamber of photosphere；
Second pixel defining layer is set in first pixel defining layer, including for the reflective pixel to be arranged
Second pixel chamber of electrode layer, the second luminescent layer and the second electrode lay.
The upper surface of second pixel defining layer is also laminated with auxiliary electrode layer in one of the embodiments,；It is described
The second electrode lay is laminated in the surface of second luminescent layer and the auxiliary electrode layer.The material of the auxiliary electrode layer can be with
The reflective pixel electrode layer is identical, to synchronize and carry out graphic making when to make the reflective pixel electrode layer.
Surrounded in second pixel defining layer in one of the embodiments, the side wall of the second pixel chamber with it is described
Angle in first pixel defining layer for being arranged between the surface of the reflective pixel electrode layer is less than 90 °.Angle setting
Transmitting pixel electrode layer and the auxiliary electrode layer can effectively be separated.
In one of the embodiments, second pixel defining layer with a thickness of 400-600nm.Later period in order to prevent
Emit fracture in two electrode layer manufacturing process, the second pixel defining layer is unsuitable blocked up, too thick to will lead to later period the second electrode lay hair
Raw fracture, it is too thin, it can not effectively separate reflective pixel electrode layer and the auxiliary electrode layer.
The driving circuit is set on the substrate in one of the embodiments,；First pixel defining layer is also
Equipped with through-hole, the through-hole is for being connected to the driving circuit and the reflective pixel electrode layer.Driving circuit is set to face
The inside of hardened structure can further reduce the volume of panel construction, optimised devices structure.
The material of first pixel defining layer is lyophobic material in one of the embodiments,.
The substrate is rigid glass substrate or flexible base board in one of the embodiments,.
First luminescent layer of the present invention include hole injection layer, hole transmission layer, light-emitting layer, electron transfer layer and
One or more layers in electron injecting layer, wherein must have light-emitting layer, light-emitting layer includes but is not limited to organic light emitting
Layer, quantum dot light emission layer or perovskite light-emitting layer.In the presence of the through-hole, when first luminescent layer makes
Printing technology production can be used, so as to prevent the through-hole from being filled out in the preparation process of the first luminescent layer by emitting layer material
It fills and cannot achieve effective connection.
Second luminescent layer of the present invention include hole injection layer, hole transmission layer, light-emitting layer, electron transfer layer and
One or more layers in electron injecting layer, wherein must have light-emitting layer, light-emitting layer includes but is not limited to organic light emitting
Layer, quantum dot light emission layer or perovskite light-emitting layer.Second luminescent layer can be prepared by printing or evaporation process, using print
Dataller's skill need to carry out hydrophobicity processing to the metallic film (i.e. the surface of the second pixel defining layer) in the second pixel defining layer, such as
CF4plasma processing need to carry out vapor deposition preparation using fine mask when preparing using evaporation process.
The present invention also provides a kind of display device, the panel construction including the double-sided display.
Compared with prior art, the invention has the following advantages:
Each component is rationally arranged in the panel construction of double-sided display of the invention, wherein the first electrode layer, first shine
Layer and reflective pixel electrode layer form bottom emitting type light emitting component, the second luminescent layer, the second electrode lay and reflective pixel
Electrode layer forms top emission type light emitting component, and the two shares reflective pixel electrode layer, and reflective pixel electrode layer and driving electricity
Road is connected, so that driving circuit can control the bottom emitting type light emitting component being superimposed and top emitting simultaneously
Type light emitting component.The panel construction of double-sided display is consequently formed, can realize frivolous pair while guaranteeing display effect
Face is shown, and manufacturing cost is low.
Further, by rationally controlling the thickness and material of reflective pixel electrode layer, it can guarantee bottom emitting type simultaneously
The luminescent properties of light emitting component and top emission type light emitting component, to obtain more preferably display effect.
Detailed description of the invention
Fig. 1 is the panel construction schematic diagram of the double-sided display in one embodiment of the invention；
Fig. 2 is the fabrication processing figure of the panel construction of double-sided display shown in FIG. 1；
Fig. 3 is the structural schematic diagram of step S1 in the production method of the panel construction of double-sided display shown in FIG. 1；
Fig. 4 is the structural schematic diagram of step S2 in the production method of the panel construction of double-sided display shown in FIG. 1；
Fig. 5 is the structural schematic diagram of step S3 in the production method of the panel construction of double-sided display shown in FIG. 1；
Fig. 6 is the structural schematic diagram of step S4 in the production method of the panel construction of double-sided display shown in FIG. 1；
Fig. 7 is the structural schematic diagram of step S5 in the production method of the panel construction of double-sided display shown in FIG. 1；
Fig. 8 is the structural schematic diagram of step S6 in the production method of the panel construction of double-sided display shown in FIG. 1.
Specific embodiment
Make below in conjunction with panel construction and display device of the specific embodiment to double-sided display of the invention further detailed
Explanation.
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Embodiment
As shown in Figure 1, a kind of panel construction of double-sided display of the present embodiment, including driving circuit 400, and be stacked
Substrate 100, first electrode layer 101, the first luminescent layer 102, reflective pixel electrode layer 300, the second luminescent layer 202 and the second electricity
Pole layer 201.Driving circuit 400 is connected to reflective pixel electrode layer 300.
Each component is rationally arranged in the panel construction of the double-sided display, wherein first electrode layer 101, the first luminescent layer 102 with
And reflective pixel electrode layer 300 forms bottom emitting type light emitting component, the second luminescent layer 202, the second electrode lay 201 and reflection
Pixel electrode layer 300 forms top emission type light emitting component, and the two shares reflective pixel electrode layer 300, and emits pixel electrode
300 are connected with driving circuit 400, so that driving circuit 400 can control the bottom emitting type hair being superimposed simultaneously
Optic component and top emission type light emitting component.The panel construction of double-sided display is consequently formed, can guarantee display effect
While, realize frivolous double-sided display, and manufacturing cost is low.
Wherein, the material of reflective pixel electrode layer 300 is conductive metal, preferably Al, Al alloy, in Ag, Ag alloy
It can get more illumination effect when at least one.In the present embodiment, the material of reflective pixel electrode layer 300 is Al, thickness
For 100nm.It is understood that in other embodiments, can also be needed to carry out other reflective pixel electrodes according to specific panel construction
Layer 300 thickness setting, preferably reflective pixel electrode layer 300 with a thickness of 50-300nm.
The material of first electrode layer 101 is transparent conductive metal oxide, preferably at least one of ITO, IZO.?
In the present embodiment, the material of first electrode layer 101 is ITO.
The material of the second electrode lay 201 is transparent conductive metal oxide or metallic film, preferably ITO, IZO, Al, Al
At least one of alloy, Ag, Ag alloy.In the present embodiment, the material of the second electrode lay 201 is Al alloy, thickness about 15-
25nm。
Substrate 100 can be rigid glass substrate or flexible base board, in the present embodiment, using rigid glass substrate as base
Plate 100.
Further, as shown in Figure 1, the panel construction of the double-sided display of the present embodiment, further includes the first pixel defining layer
103 and second pixel defining layer 203.First pixel defining layer 103 is set on substrate 100, including for first electrode to be arranged
First pixel chamber of layer 101 and the first luminescent layer 102, is made of lyophobic material；Second pixel defining layer 203 is set to first
In pixel defining layer 103, including for reflective pixel electrode layer 300, the second luminescent layer 202 and the second electrode lay 201 to be arranged
Second pixel chamber.
In the present embodiment, the upper surface of the second pixel defining layer 203 is also laminated with auxiliary electrode layer 204, second electrode
Layer 201 is laminated in the surface of the second luminescent layer 202 and auxiliary electrode layer 204.Thus the electric conductivity of second transparency electrode can be improved.
The material of auxiliary electrode layer 204 can be identical as reflective pixel electrode layer 300, so as to when making reflective pixel electrode layer 300, together
Step carries out graphic making.
In the present embodiment, the side wall of the second pixel chamber 203 is surrounded in the second pixel defining layer 203 and the first pixel defines
Angle on layer 103 for being arranged between the surface of reflective pixel electrode layer 300 is less than 90 °.The angle setting can effectively every
Disconnected transmitting pixel electrode 300.Meanwhile emitting fracture, the second pixel circle in 201 manufacturing process of later period the second electrode lay in order to prevent
Given layer 203 is unsuitable blocked up, be arranged in the present embodiment the second pixel defining layer 203 with a thickness of 400-600nm, too it is thick will lead to after
Phase the second electrode lay 201 is broken, too thin, can not effectively separate reflective pixel electrode layer 300.
In the present embodiment, driving circuit 400 is set on substrate 100.First pixel defining layer 103 is additionally provided with through-hole
104, through-hole 104 is for being connected to driving circuit 400 and reflective pixel electrode layer 300.Driving circuit 400 is set to panel construction
Inside, the volume of panel construction, optimised devices structure can be further reduced.Specifically, driving circuit 400 can pass through yellow light work
Skill is integrated on the substrate 100.
The panel construction of above-mentioned double-sided display can carry out the conventional display device installed and be made to double-sided display.
The production method of the panel construction of above-mentioned double-sided display, process flow chart are shown in Fig. 2, include the following steps:
S1, substrate 100 is provided, is provided with driving circuit 400 and first electrode layer 101 on substrate 100, as shown in Figure 3；
S2, in making the first pixel defining layer 103 on substrate 100, cover 101 fringe region of first electrode layer, and including
For the first pixel chamber and through-hole 104 of first electrode layer 101 and the first luminescent layer 102 to be arranged, as shown in Figure 4；
S3, in making the second pixel defining layer 203 in the first pixel defining layer 103, the second pixel defining layer 203 includes using
In setting reflective pixel electrode layer 300, the second pixel chamber of the second luminescent layer 202 and the second electrode lay 201, as shown in Figure 5；
S4, in the first pixel chamber, in first electrode layer 101 using printing technology prepare the first luminescent layer 102, such as
Shown in Fig. 6；
S5, in the second pixel chamber, whole face (including the first luminescent layer 102, the first pixel confining layer 103 and second
The surface of pixel confining layer 203) deposition of reflective pixel electrode layer material, the second pixel defining layer 203 separated graphically, shape
At reflective pixel electrode layer 300 and auxiliary electrode 204, as shown in Figure 7；
S6, the second luminescent layer 202 is made on reflective pixel electrode layer 300, as shown in Figure 8；
S7, whole face (surface including the second luminescent layer 202 and the second pixel confining layer 203) deposit the second electrode lay 201,
Wherein the reflective conductive film in the second pixel defining layer 203 can be used as auxiliary electrode 204, improve the second electrode lay 201
Electric conductivity；The panel construction of double-sided display is obtained, as shown in Figure 1.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of panel construction of double-sided display, which is characterized in that including driving circuit, and be stacked substrate, first
Electrode layer, the first luminescent layer, reflective pixel electrode layer, the second luminescent layer and the second electrode lay；The driving circuit is connected to institute
State reflective pixel electrode layer.
2. the panel construction of double-sided display according to claim 1, which is characterized in that the material of the reflective pixel electrode layer
Material is at least one of Al, Al alloy, Ag, Ag alloy.
3. the panel construction of double-sided display according to claim 1, which is characterized in that the thickness of the reflective pixel electrode layer
Degree is 50-300nm.
4. the panel construction of double-sided display according to claim 1, which is characterized in that the material of the first electrode layer is
At least one of ITO, IZO.
5. the panel construction of double-sided display according to claim 1, which is characterized in that the material of the second electrode lay is
At least one of ITO, IZO, Al, Al alloy, Ag, Ag alloy.
6. the panel construction of double-sided display according to claim 1-5, which is characterized in that further include the first pixel
Define layer and the second pixel defining layer；
First pixel defining layer is set on the substrate, including for the first electrode layer and the first luminescent layer to be arranged
The first pixel chamber；
Second pixel defining layer is set in first pixel defining layer, including for the reflective pixel electrode to be arranged
Second pixel chamber of layer, the second luminescent layer and the second electrode lay.
7. the panel construction of double-sided display according to claim 6, which is characterized in that second pixel defining layer it is upper
Surface is also laminated with auxiliary electrode layer；The second electrode lay is laminated in the table of second luminescent layer and the auxiliary electrode layer
Face.
8. the panel construction of double-sided display according to claim 7, which is characterized in that enclosed in second pixel defining layer
At the surface for being used to be arranged the reflective pixel electrode layer in the side wall of the second pixel chamber and first pixel defining layer
Between angle less than 90 °；And/or second pixel defining layer with a thickness of 400-600nm.
9. the panel construction of double-sided display according to claim 6, which is characterized in that the driving circuit is set to described
On substrate；First pixel defining layer is additionally provided with through-hole, and the through-hole is for being connected to the driving circuit and the reflection image
Plain electrode layer.
10. a kind of display device, which is characterized in that the panel construction including the described in any item double-sided displays of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711436899.1A CN108962938B (en) | 2017-12-26 | 2017-12-26 | Panel structure with double-sided display and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436899.1A CN108962938B (en) | 2017-12-26 | 2017-12-26 | Panel structure with double-sided display and display device |
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| CN108962938A true CN108962938A (en) | 2018-12-07 |
| CN108962938B CN108962938B (en) | 2021-03-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477912A (en) * | 2002-07-18 | 2004-02-25 | Lg.������Lcd��ʽ���� | Double-panel organic electroluminescent display device |
| CN1499909A (en) * | 2002-10-29 | 2004-05-26 | Lg.������Lcd��ʽ���� | Double-panel organic electroluminescent displaying device and its mfg. method |
| CN107331687A (en) * | 2017-07-11 | 2017-11-07 | 武汉华星光电半导体显示技术有限公司 | OLED display with double faces and preparation method thereof |
-
2017
- 2017-12-26 CN CN201711436899.1A patent/CN108962938B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477912A (en) * | 2002-07-18 | 2004-02-25 | Lg.������Lcd��ʽ���� | Double-panel organic electroluminescent display device |
| CN1499909A (en) * | 2002-10-29 | 2004-05-26 | Lg.������Lcd��ʽ���� | Double-panel organic electroluminescent displaying device and its mfg. method |
| CN107331687A (en) * | 2017-07-11 | 2017-11-07 | 武汉华星光电半导体显示技术有限公司 | OLED display with double faces and preparation method thereof |
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| CN108962938B (en) | 2021-03-09 |
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