CN109256491A - Display panel, display module and electronic device - Google Patents
Display panel, display module and electronic device Download PDFInfo
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- CN109256491A CN109256491A CN201811185964.2A CN201811185964A CN109256491A CN 109256491 A CN109256491 A CN 109256491A CN 201811185964 A CN201811185964 A CN 201811185964A CN 109256491 A CN109256491 A CN 109256491A
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- display panel
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Present applicant proposes a kind of display panel, display module and electronic device, the display panel includes: array substrate；Light emitting device layer, including at least three display units；Thin-film encapsulation layer；Reflecting layer, including at least three reflector elements, the reflector element and the display unit correspond；Wherein, the center of the display unit is overlapped with the focus of the reflector element corresponding to the display unit.The application is by being arranged reflecting layer in the thin-film encapsulation layer, it is overlapped the center of the display unit and the focus of the reflector element, so that the display unit emergent ray is converted to the parallel rays perpendicular to the substrate after the reflector element, the emergent ray for reducing organic luminescent device occurs to be totally reflected and the loss of generation in device, improves the light extraction efficiency of organic luminescent device.Also, in the case where going out luminous intensity on an equal basis, the operating current of organic luminescent device is reduced, service life is extended.
Description
Technical field
This application involves display field, in particular to a kind of display panel, display module and electronic device.
Background technique
In flat panel display, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) is aobvious
Show device have it is frivolous, actively shine, fast response time, angle of visibility is big, colour gamut is wide, brightness is high and many merits such as low in energy consumption, by
Gradually become the third generation display technology after liquid crystal display.
The refractive index of existing organic luminescent device film layer is generally all higher than air, therefore going out with larger shooting angle
Penetrating light can be totally reflected back to inside film layer on the interface of film layer and air, so that light extraction efficiency reduces；And work as organic illuminator
When the luminous intensity out of part is smaller, and in order to guarantee the certain luminous intensity out of luminescent device, it is necessary to increase the drive of organic luminescent device
Streaming current, therefore the service life of luminescent device is caused to reduce.
Therefore, a kind of display panel is needed at present to solve the above problems.
Summary of the invention
The application provides a kind of display panel, display module and electronic device, to solve existing display panel luminescent device
The technical issues of luminous intensity reduces out.
To solve the above problems, technical solution provided by the present application is as follows:
The application provides a kind of display panel, wherein includes:
Array substrate；
Light emitting device layer in the array substrate, including at least three display units；
Thin-film encapsulation layer on the light emitting device layer；And
Reflecting layer in the thin-film encapsulation layer, including at least three reflector elements, the reflector element with it is described
Display unit corresponds；
Wherein, the center of the display unit is overlapped with the focus of the reflector element corresponding to the display unit.
In the display panel of the application, the thin-film encapsulation layer includes an at least inorganic layer and at least one for alternately superposition
Organic layer；
The reflecting layer is located in the organic layer.
In the display panel of the application, the thin-film encapsulation layer includes the first inorganic layer, is located at first inorganic layer
On the first organic layer, the second organic layer on first organic layer and second on second organic layer
Inorganic layer；
The reflecting layer is between first organic layer and second organic layer.
It is each described in the array substrate to the direction of the thin-film encapsulation layer in the display panel of the application
Reflector element is the arc of protrusion.
In the display panel of the application, the light emitting device layer further include:
Anode layer between the array substrate and the display unit, it is in battle array that the anode layer, which includes at least three,
The anode of column distribution；
Cathode layer between the encapsulated layer and the display unit, the cathode layer cover the luminescent layer；
Wherein, the anode layer and the cathode layer are transparent or semitransparent metal oxide.
In the display panel of the application, the material in the reflecting layer includes at least one of metal gold, silver.
In the display panel of the application, each display unit is red sub-pixel, green sub-pixels, the sub- picture of blue
One of element.
In the display panel of the application, the light emitting device layer includes at least one first display unit, at least one second
Display unit and at least a third display unit；
First display unit, second display unit and the third display unit are red sub-pixel, green
One of sub-pixels, blue subpixels, and first display unit, second display unit and the third are aobvious
Show that the sub-pixel colors of unit are different.
According to further aspect of the application, a kind of display module is additionally provided, including above-mentioned display panel.
According to further aspect of the application, a kind of electronic device is additionally provided, including above-mentioned display module.
The utility model has the advantages that the application makes the center of the display unit by the way that reflecting layer is arranged in the thin-film encapsulation layer
Be overlapped with the focus of the reflector element so that the display unit issue light be converted to after the reflector element it is vertical
Directly in the parallel rays of the substrate, the emergent ray for reducing organic luminescent device occurs in device to be totally reflected and be generated
Loss, improves the light extraction efficiency of organic luminescent device；Go out under luminous intensity on an equal basis, reduces the work electricity of organic luminescent device
Stream, extends service life.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the film layer structure figure of the application display panel；
Fig. 2 is the working principle diagram in reflecting layer in the application display panel.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the application
Example.The direction term that the application is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the application, rather than to
Limit the application.The similar unit of structure is with being given the same reference numerals in the figure.
Referring to Fig. 1, Fig. 1 is the film layer structure figure of the application display panel.
The display panel includes array substrate 100, light emitting device layer 200 and thin-film encapsulation layer 300.
The array substrate 100 includes substrate 10 and the tft layer 20 on the substrate 10.In a kind of reality
It applies in example, the substrate 10 can be one of glass substrate, quartz base plate, resin substrate etc..
The tft layer 20 is located on the substrate 10.The tft layer 20 includes etch stop layer
Type, back channel etch type or top-gate thin-film transistors type structure, specific there is no limit.For example, the application is with top-gate thin-film crystal
Cast is illustrated, the tft layer 20 may include: buffer layer, active layer, gate insulation layer, grid, insulating layer,
The structures such as source-drain electrode and flatness layer.
The light emitting device layer 200 is located in the array substrate 100, and the light emitting device layer 200 includes at least three
Display unit 30.
In one embodiment, the light emitting device layer 200 includes at least one first display unit 301, at least one second
Display unit 302 and at least a third display unit 303.
In one embodiment, each display unit 30 is red sub-pixel, in green sub-pixels, blue subpixels
One kind.
First display unit 301, second display unit 302 and the third display unit 303 are red
One of sub-pixel, green sub-pixels, blue subpixels.First display unit 301, second display unit 302
And the third is shown
It further include anode layer 40 between the display unit 30 and the substrate 10.
The anode layer 40 includes at least three anodes 401 in array distribution, described in each anode 401 corresponding one
Luminescence unit.Since the organic luminescent device of the application is bottom light emitting structure, the light that display unit 30 issues is single from display
Member 30 to 10 direction of substrate is irradiated.
In one embodiment, the anode layer 40 is made of transparent material.
In one embodiment, there is no particular limitation for the material of the anode layer 40, can include but is not limited to aoxidize
The transparent conductive oxides such as indium tin (ITO), conducting polymer, the multi-layer graphene of nitric acid treatment, carbon pipe etc..Above-mentioned material can be with
While guaranteeing preferable electric conductivity, there is preferable light transmission, be conducive to improve display effect.
The light emitting device layer 200 further includes cathode layer 50, and the cathode layer 50 is formed on the display unit 30.
In one embodiment, the metal material of the cathode layer 50 is transparent or semitransparent metal, so that described aobvious
Show that the emergent ray that unit 30 issues penetrates the cathode layer 50.
The display surface further includes the thin-film encapsulation layer 300 on the cathode layer 50.
The thin-film encapsulation layer 300 mainly acts the oxygen that blocks water, and prevents erosion of the external moisture to organic luminous layer.
The thin-film encapsulation layer 300 is mainly formed by an at least organic layer and an at least inorganic layer intersecting；Usual organic layer is located at
The centre of the thin-film encapsulation layer 300, inorganic layer are located at the two sides of the thin-film encapsulation layer 300, organic layer are wrapped in centre.
In one embodiment, the thin-film encapsulation layer 300 includes the first inorganic layer 601, organic layer and the second inorganic layer
604, the organic layer is between first inorganic layer 601 and second inorganic layer 604.
The display surface further includes positioned at the reflecting layer 70 being located in the thin-film encapsulation layer 300.
The reflecting layer 70 includes at least three reflector elements, and the reflector element and the display unit 30 1 are a pair of
It answers.The center of the display unit 30 is overlapped with the focus of the reflector element corresponding to the display unit 30.
In one embodiment, the reflecting layer 70 is located in the organic layer of the thin-film encapsulation layer 300.
Referring to Fig. 1, the organic layer includes the first organic layer 602 and the second organic layer 603, the reflecting layer 70 is located at
Between first organic layer 602 and second organic layer 603.
In technique, it is initially formed first organic layer 601 including protrusion.Secondly, in first organic layer 601
It is upper to deposit 70 film of reflecting layer and the second organic layer 603, the second inorganic layer 604, complete the production of thin-film encapsulation layer 300
Technique；
In one embodiment, the material in the reflecting layer 70 can be but be not limited in the metals such as metallic silver, gold
Either reflectivity is higher, toughness is preferably ceramic or high molecular material for one or more kinds of compositions (alloy).
In one embodiment, the reflecting layer 70 includes the first reflector element 701, the second reflector element 702 and the
Three reflector elements 703.First reflector element 701 is corresponding with first display unit 301, second reflector element
702 is corresponding with second display unit 302, and the third reflecting unit 703 is corresponding with the third display unit 303.
In one embodiment, on the substrate 10 to the direction of the thin-film encapsulation layer 300, each reflection is single
Member is raised arc；
Referring to Fig. 2, Fig. 2 is the working principle diagram in reflecting layer in the application display panel.
According to the principle of concavees lens, the emergent ray that first display unit 301 issues is irradiated to first reflection
Unit 701, since first reflector element 701 is made of the material of high reflectance, the emergent ray is irradiated to institute
After stating the first reflector element 701, the parallel rays perpendicular to the substrate 10, i.e., the described emergent ray and the substrate are converted to
10 angle is 90 °.
It is located in the focus of 301 cambered surface of the first display unit due to first display unit 301, described
The emergent ray that one display unit 301 issues almost 100% is reflected into the emergent ray vertical with the substrate 10.
It, will not when emergent ray passes through substrate 10 or other film layers since emergent ray is vertical with the substrate 10
It is totally reflected, improve the display panel goes out luminous intensity, that is, improves the light extraction efficiency of display panel.
According to further aspect of the application, a kind of display module is additionally provided, the display module includes the display
Panel further includes the touch control layer set gradually on said display panel, polarizing layer and cover layer.Wherein, the thin-film package
Layer is Nian Jie with the touch control layer by the first optical adhesive layer, and the polarizing layer is viscous by the second optical adhesive layer and the cover layer
It connects.
According to the another aspect of the application, a kind of electronic device is additionally provided, the electronic device includes the display
Mould group；The electronic device includes but is not limited to mobile phone, tablet computer, computer display, game machine, television set, display
Screen, wearable device and other living electric apparatus or household electrical appliance having a display function etc..
The working principle of the working principle of the display module, the working principle of the electronic device and the display panel
Similar, the working principle of the working principle of the display module and the electronic device can specifically refer to the display panel
Working principle, be not described herein.
Present applicant proposes a kind of display panel, display module and electronic device, the display panel includes: array base
Plate；Light emitting device layer, including at least three display units；Thin-film encapsulation layer；Reflecting layer, including at least three reflector elements, institute
It states reflector element and the display unit corresponds；Wherein, corresponding to the center of the display unit and the display unit
The reflector element focus be overlapped.The application keeps the display single by the way that reflecting layer is arranged in the thin-film encapsulation layer
The center of member is overlapped with the focus of the reflector element, so that the light that the display unit issues is after the reflector element
The parallel rays perpendicular to the substrate is converted to, the emergent ray for reducing organic luminescent device is totally reflected in device
And the loss generated, improve the light extraction efficiency of organic luminescent device；Go out under luminous intensity on an equal basis, reduces organic luminescent device
Operating current extends service life.
Although above preferred embodiment is not to limit in conclusion the application is disclosed above with preferred embodiment
The application processed, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of display panel characterized by comprising
Array substrate；
Light emitting device layer in the array substrate, including at least three display units；
Thin-film encapsulation layer on the light emitting device layer；And
Reflecting layer in the thin-film encapsulation layer, including at least three reflector elements, the reflector element and the display
Unit corresponds；
Wherein, the center of the display unit is overlapped with the focus of the reflector element corresponding to the display unit.
2. display panel according to claim 1, which is characterized in that the thin-film encapsulation layer includes alternately being superimposed at least
One inorganic layer and at least an organic layer；
The reflecting layer is located in the organic layer.
3. display panel according to claim 2, which is characterized in that the thin-film encapsulation layer includes the first inorganic layer, position
In the first organic layer on first inorganic layer, the second organic layer on first organic layer and it is located at described the
The second inorganic layer on two organic layers；
The reflecting layer is between first organic layer and second organic layer.
4. display panel according to claim 1, which is characterized in that in the array substrate to the thin-film encapsulation layer
On direction, each reflector element is the arc of protrusion.
5. display panel according to claim 1, which is characterized in that the light emitting device layer further include:
Anode layer between the array substrate and the display unit, the anode layer include at least three in array point
The anode of cloth；
Cathode layer between the encapsulated layer and the display unit, the cathode layer cover luminescent layer；
Wherein, the anode layer and the cathode layer are transparent or semitransparent metal oxide.
6. display panel according to claim 1, which is characterized in that the material in the reflecting layer includes in metal gold, silver
At least one.
7. display panel according to claim 1, which is characterized in that each display unit is red sub-pixel, green
One of sub-pixels, blue subpixels.
8. display panel according to claim 7, which is characterized in that the light emitting device layer includes at least one first display
Unit, at least one second display unit and at least a third display unit；
First display unit, second display unit and the third display unit are red sub-pixel, green
One of pixel, blue subpixels, and first display unit, second display unit and third display are single
The sub-pixel colors of member are different.
9. a kind of display module, which is characterized in that including any display panel of claim 1-8.
10. a kind of electronic device, which is characterized in that including display module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811185964.2A CN109256491B (en) | 2018-10-11 | 2018-10-11 | Display panel, display module and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811185964.2A CN109256491B (en) | 2018-10-11 | 2018-10-11 | Display panel, display module and electronic device |
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| CN109256491A true CN109256491A (en) | 2019-01-22 |
| CN109256491B CN109256491B (en) | 2021-04-23 |
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| CN109841753A (en) * | 2019-02-02 | 2019-06-04 | 京东方科技集团股份有限公司 | Light removing layer and preparation method thereof, display panel |
| CN110137235A (en) * | 2019-05-31 | 2019-08-16 | 京东方科技集团股份有限公司 | A kind of preparation method of display panel, display panel and display device |
| CN110335956A (en) * | 2019-04-25 | 2019-10-15 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN111415966A (en) * | 2020-04-20 | 2020-07-14 | 武汉华星光电半导体显示技术有限公司 | Organic light emitting diode device and display device |
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| GB2597729A (en) * | 2020-07-31 | 2022-02-09 | Oculomotorius As | A display screen adapted to correct for presbyopia |
| CN114545677A (en) * | 2022-02-24 | 2022-05-27 | 京东方科技集团股份有限公司 | Reflective display module and display device |
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| GB2597729A (en) * | 2020-07-31 | 2022-02-09 | Oculomotorius As | A display screen adapted to correct for presbyopia |
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