CN110136595A - A kind of display panel and preparation method thereof, display device - Google Patents
A kind of display panel and preparation method thereof, display device Download PDFInfo
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- CN110136595A CN110136595A CN201910414083.1A CN201910414083A CN110136595A CN 110136595 A CN110136595 A CN 110136595A CN 201910414083 A CN201910414083 A CN 201910414083A CN 110136595 A CN110136595 A CN 110136595A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The invention discloses a kind of display panels and preparation method thereof, display device.The display panel includes underlay substrate, multiple micro LED, multiple quantum dot films and encapsulated layer；Display panel further includes multiple pixel regions, and micro LED is equipped on the underlay substrate in each pixel region, and quantum dot film is at least partly provided in pixel region, and quantum dot film covers the micro LED in same pixel region；Encapsulated layer is oppositely arranged with underlay substrate, and encapsulated layer covers the quantum dot film in multiple pixel regions.Technical solution provided in an embodiment of the present invention, reduce the thickness of display panel, be conducive to the thinning of display panel, and quantum dot film can be prepared using inkjet printing technology, preparation process is simple, can simplify the preparation process of display panel, furthermore, based on quantum dot self-characteristic, the photochromic purity of display panel is higher, colour gamut is wider and longer life expectancy.
Description
Technical field
The present embodiments relate to field of display technology more particularly to a kind of display panel and preparation method thereof, display dress
It sets.
Background technique
The colour gamut of full-color display panel is wide, can show coloury picture, brings the splendid visual experience of user.
Full-color display panel includes the array substrate being oppositely arranged and color membrane substrates in the prior art, and color membrane substrates include coloured silk
Color filtering optical layer, chromatic filter layer include multiple colorized optical filtering blocks, and each colorized optical filtering block is set in a pixel region, colour filter
The light that light block can issue light source in array substrate filter and then obtains the light of color of object, and multiple pixel regions shine
Color colour mixture obtains target light, and then completes the display of image on display panel.Color membrane substrates further include transparent substrate, colored
Filter layer is formed on transparent substrate, and transparent substrate is hard substrate, and thickness is relatively large, leads to the integral thickness of display panel
It is larger, and chromatic filter layer need to form each colorized optical filtering block, complex process using photoetching process.
Summary of the invention
The present invention provides a kind of display panel and preparation method thereof, display device, to reduce the thickness of display panel, reduces
The preparation process difficulty of display panel, promotes the display effect of display panel.
In a first aspect, the embodiment of the invention provides a kind of display panel, including it is underlay substrate, multiple micro LED, more
A quantum dot film and encapsulated layer；
The display panel further includes multiple pixel regions, is installed on the underlay substrate in each pixel region
Micro LED is stated, the quantum dot film is provided in at least partly described pixel region, the quantum dot film covers same institute
State the micro LED in pixel region；
The encapsulated layer is oppositely arranged with the underlay substrate, and the encapsulated layer covers described in multiple pixel regions
Quantum dot film.
Second aspect, the embodiment of the invention also provides a kind of display devices, including display described in above-mentioned first aspect
Panel.
The third aspect, the embodiment of the invention also provides a kind of preparation methods of display panel, are used to prepare above-mentioned first
Display panel described in aspect, comprising:
One underlay substrate is provided；
Micro LED is installed respectively on the underlay substrate in multiple pixel regions；
Quantum dot film is formed in at least partly described pixel region using inkjet printing technology, the quantum dot film covers
Cover the micro LED in the same pixel region；
The encapsulated layer is formed, the encapsulated layer is oppositely arranged with the underlay substrate, and encapsulated layer covering is multiple
The quantum dot film.
Display panel provided in an embodiment of the present invention include underlay substrate, multiple micro LED, multiple quantum dot films with
And encapsulated layer, display panel further include multiple pixel regions, and micro LED is equipped on the underlay substrate in each pixel region, until
Be provided with quantum dot film in small part pixel region, quantum dot film covers the micro LED in same pixel region, encapsulated layer with
Underlay substrate is oppositely arranged, and encapsulated layer covers the quantum dot film in multiple pixel regions, so that the quantum dot in quantum dot film
It absorbs the light of micro LED in same pixel region and issues the light of corresponding color, and then it is relatively large to no longer need to setting thickness
Color membrane substrates reduce the thickness of display panel, are conducive to the thinning of display panel, and can prepare using inkjet printing technology
Quantum dot film, preparation process is simple, can simplify the preparation process of display panel, in addition, being based on quantum dot self-characteristic, shows
Show that the photochromic purity of panel is higher, colour gamut is wider and longer life expectancy.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is a kind of overlooking structure diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the section structure of the dotted line AB along Fig. 1；
Fig. 3 is another the schematic diagram of the section structure of the dotted line AB along Fig. 1；
Fig. 4 is the overlooking structure diagram of another display panel provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of the section structure of the dotted line CD along Fig. 4；
Fig. 6 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of the preparation method of display panel provided in an embodiment of the present invention.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the specific reality of a kind of display panel proposed according to the present invention and preparation method thereof, display device
Mode, structure, feature and its effect are applied, detailed description is as follows.
The embodiment of the invention provides a kind of display panels, including underlay substrate, multiple micro LED, multiple quantum dots
Film and encapsulated layer；
The display panel further includes multiple pixel regions, is installed on the underlay substrate in each pixel region
Micro LED is stated, the quantum dot film is provided in at least partly described pixel region, the quantum dot film covers same institute
State the micro LED in pixel region；
The encapsulated layer is oppositely arranged with the underlay substrate, and the encapsulated layer covers described in multiple pixel regions
Quantum dot film.
Display panel provided in an embodiment of the present invention include underlay substrate, multiple micro LED, multiple quantum dot films with
And encapsulated layer, display panel further include multiple pixel regions, and micro LED is equipped on the underlay substrate in each pixel region, until
Be provided with quantum dot film in small part pixel region, quantum dot film covers the micro LED in same pixel region, encapsulated layer with
Underlay substrate is oppositely arranged, and encapsulated layer covers the quantum dot film in multiple pixel regions, so that the quantum dot in quantum dot film
Material absorbs the light of micro LED in same pixel region and issues the light of corresponding color, and then no longer needs to setting thickness relatively
Big color membrane substrates reduce the thickness of display panel, are conducive to the thinning of display panel, and can use inkjet printing technology
Quantum dot film is prepared, preparation process is simple, can simplify the preparation process of display panel, in addition, special based on quantum dot itself
Property, the photochromic purity of display panel is higher, colour gamut is wider and longer life expectancy.
It is the core concept of the application above, following will be combined with the drawings in the embodiments of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Under the premise of dynamic, every other embodiment obtained be shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other embodiments, those skilled in the art can be without prejudice in the present invention
Similar popularization is done in the case where culvert, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, combination schematic diagram of the present invention is described in detail, when describing the embodiments of the present invention, for purposes of illustration only, table
The schematic diagram of showing device device architecture not makees partial enlargement according to general proportion, and the schematic diagram is example,
This should not limit the scope of protection of the invention.In addition, the three-dimensional space of length, width and height should be included in actual fabrication
Size.
Fig. 1 is a kind of overlooking structure diagram of display panel provided in an embodiment of the present invention.Fig. 2 is the dotted line along Fig. 1
The schematic diagram of the section structure of AB.As shown in Fig. 2, display panel includes underlay substrate 100, multiple micro LED110, Duo Geliang
Son point film 120 and encapsulated layer 130.As depicted in figs. 1 and 2, display panel further includes multiple pixel regions 10.With continued reference to figure
2, micro LED110, at least partly amount of being provided in pixel region 10 are installed on the underlay substrate 100 in each pixel region 10
Son point film 120, quantum dot film 120 cover the micro LED110 in same pixel region 10, encapsulated layer 130 and underlay substrate
100 are oppositely arranged, and encapsulated layer 130 covers the quantum dot film 120 in multiple pixel regions 10.
Illustratively, encapsulated layer 130 can be fexible film, as shown in Fig. 2, in the other embodiments of the present embodiment
In, encapsulated layer 130 can be rigid substrates, and the present embodiment is not especially limited this.
It should be noted that quantum dot film 120 includes quantum dot, quantum dot is a kind of semiconductor of Nano grade, tool
There are the good characteristics such as photochromic purity is high, luminous quantum efficiency high, luminescent color is adjustable, long service life, enables quantum dot
It is applied in display panel, and wide using photochromic purity is high, the colour gamut of the display panel of quantum dot, the service life is long.
Specifically, enable to it to issue the light of specific frequency by applying certain electric field or optical pressure to quantum dot, and
The frequency of the light of sending can change as the size of quantum dot changes, therefore can pass through its hair of the size Control of quantum point
The color of light out.Optionally, the quanta point material in quantum dot film 120 can for cadmium sulfide, cadmium selenide or cadmium telluride etc.,
It can be different kinds that quanta point material, which can be same material, in quantum dot film 120 in the pixel region 10 of different luminescent colors
Material.
In the present embodiment, quantum dot film 120 covers micro LED110, positioned at the light emission side of micro LED110,
Quantum dot of the light action that micro LED110 is issued in quantum dot film 120, quantum dot absorb the micro LED110's
Light and the light for issuing corresponding color, the size of quantum dot can issue the light of corresponding color by rationally setting.Such setting
So that each pixel region 10 can issue the light of color of object, the chromatic filter layer that setting has filter action is no longer needed to, into
Without preparing the relatively large color membrane substrates of thickness again.
Illustratively, rapidly coating, the Jin Erjing of 120 raw material of quantum dot film can be realized using inkjet printing technology
Obtain quantum dot film 120 after sintering curing processing, the technique compared to the prior art in prepare the photoetching work of chromatic filter layer
Skill difficulty is lower, it is easier to operate.
It should also be noted that, Fig. 2 is only said for being respectively provided with a quantum dot film 120 in each pixel region 10
It is bright and non-limiting, in the other embodiments of the present embodiment, it can also be in partial pixel area 10 and be provided with quantum dot film
120, not set quantum dot film 120 includes illustratively red pixel area for display panel, green in other pixel regions 10
Color pixel area and blue pixel area, the color for the light that micro LED110 is issued are the situation of blue, red pixel area and green
It is provided with quantum dot film 120 in pixel region, quantum dot film 120 can be not provided in blue pixel area.
It is worth noting that, the present embodiment to the luminescent color of each pixel region 10 without limitation, can according to actual needs really
It is fixed, and according to the luminescent color of the pixel region 10 after determination, reasonably select in the pixel region 10 quantum dot in quantum dot film 120
Material and size.
Display panel provided in this embodiment includes underlay substrate 100, multiple micro LED110, multiple quantum dot films
120 and encapsulated layer 130, display panel further include multiple pixel regions 10, installed on the underlay substrate 100 in each pixel region 10
There is micro LED110, quantum dot film 120 is at least partly provided in pixel region 10, quantum dot film 120 covers same picture
Micro LED110 in plain area 10, encapsulated layer 130 are oppositely arranged with underlay substrate 100, and encapsulated layer 130 covers multiple pixel regions
Quantum dot film 120 in 10, so that the quantum dot in quantum dot film 120 absorbs micro LED110 in same pixel region 10
Light and issue the light of corresponding color, and then no longer need to the setting relatively large color membrane substrates of thickness, reduce display panel
Thickness is conducive to the thinning of display panel, and quantum dot film 120, preparation process letter can be prepared using inkjet printing technology
It is single, it can simplify the preparation process of display panel, in addition, be based on quantum dot self-characteristic, the photochromic purity of display panel is higher,
Colour gamut is wider and longer life expectancy.
With continued reference to Fig. 2, display panel can also include pixel separation layer 140, and pixel separation layer 140 includes multiple logical
Hole, through-hole and pixel region 10 correspond, and the micro LED110 and quantum dot film 120 in pixel region 10 are located at corresponding through-hole
Interior, encapsulated layer 130 covers pixel separation layer 140.
It should be noted that such setting one side is in the preparation process of display panel, pixel separation layer 140 is limited
Each pixel region 10 out, 120 material of quantum dot film in each pixel region 10 can accurately be filled in corresponding pixel region 10
It is interior, it does not extend to outside pixel region 10, avoids the hair of the overlapping caused mixed color phenomenon of 10 quantum dot film 120 of adjacent pixel area
Raw, on the other hand, during the display of display panel, pixel separation layer 140 can play certain avoid in pixel region 10
The effect that light is emitted from adjacent pixel area 10, the mixed color phenomenon for avoiding display panel from the angle of light occur.
It should also be noted that, pixel separation layer 140 is not the indispensable structure of display panel, in other implementations of the invention
In mode, display panel can not also include pixel separation layer 140, as shown in Figure 3.Specifically, in the preparation of display panel
Cheng Zhong, to avoid in adjacent pixel area 10 120 raw material edge of quantum dot film from mixing, can formed quantum dot film 120 it
Preceding formation pixel separation layer, and remove pixel separation layer after the formation of quantum dot film 120, at this point, ultimately forming
Display panel in without pixel separation layer.
Illustratively, the material of pixel separation layer can be transparent photomask glue.
It should be noted that such setting reduces pixel separation layer to the barrier effect of display panel light, avoid
The appearance of display panel amount of light deficiency problem.Transparent photomask glue price is low, and performance is stablized, and is easy to coat and solidify, energy
It enough reduces cost and simplifies technique, be a kind of material of preferable pixel separation layer.
It is understood that pixel separation layer can also be transparent using other in the other embodiments of the present embodiment
Material is formed, and the present embodiment is not specifically limited in this embodiment.
Fig. 4 is the overlooking structure diagram of another display panel provided in an embodiment of the present invention.Fig. 5 is empty along Fig. 4
The schematic diagram of the section structure of line CD.As shown in Figure 4 and Figure 5, multiple pixel regions 10 include red pixel area 11, green pixel area 12
With blue pixel area 13, the luminescent color of display panel is red, display panel in green pixel area 12 in red pixel area 11
Luminescent color be green, the luminescent color of the display panel in blue pixel area 13 is blue.
It should be noted that red, green and blue are the three primary colors of light, the red of varying strength, green and blue energy
It is enough mixed to get the light of various colors, therefore, multiple pixel regions 10 include red pixel area 11, green pixel area 12 and blue picture
Plain area 13 enables to display panel display color various, enriches it and shows color.
Illustratively, in Fig. 5, the luminescent color of micro LED110 can be blue.
It should be noted that the micro LED110 that luminescent color is blue is a kind of more common backlight, this reality
Applying example uses it that can increase the compatibility with the prior art as light source, and blue is a kind of luminescent color of pixel region 10,
Quantum dot film 120 can be no longer arranged in respective pixel area 10.
With continued reference to Fig. 5, multiple quantum dot films 120 are set in red pixel area 11 and green pixel area 12.
It should be noted that in blue pixel area 13, since micro LED110 luminescent color has been the pixel region
10 luminescent color, there is no need to which quantum dot film 120 is arranged again, such setting can reduce 120 quantity of quantum dot film,
And then simplify 120 formation process of structure and quantum dot film of display panel.
Optionally, the Thickness of quantum dot film 120 may range from being less than or equal to 1 μm.
It should be noted that the excessive increase that will lead to display panel thickness of the thickness of quantum dot film 120, is unfavorable for showing
Show the thinning of panel, too small will lead to of the thickness of quantum dot film 120 includes quantum dot lazy weight, influences the aobvious of display panel
Show effect, it is demonstrated experimentally that the thickness of display panel is suitable when the Thickness range of quantum dot film 120 is less than or equal to 1 μm
In, and display effect is good.
Fig. 6 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.As shown in fig. 6, display device 1 is wrapped
Include display panel 2 described in any embodiment of that present invention.
Fig. 7 is a kind of flow diagram of the preparation method of display panel provided in an embodiment of the present invention.The display panel
Preparation method be specifically used for preparation any embodiment of that present invention provide display panel.As shown in fig. 7, the preparation of display panel
Method specifically includes:
Step 71 provides a underlay substrate.
Step 72 installs micro LED respectively on the underlay substrate in multiple pixel regions.
Step 73 forms quantum dot film using inkjet printing technology at least partly pixel region, and quantum dot film covers
Cover the micro LED in same pixel region.
It should be noted that the technology difficulty of inkjet printing technology is low compared to traditional photoetching process, it is easily operated,
The quantum dot film function admirable for preparing speed faster, and being formed is a kind of more preferably quantum dot film preparation process.
Step 74 forms encapsulated layer, and encapsulated layer is oppositely arranged with underlay substrate, and the multiple quantum dots of encapsulated layer covering are thin
Film.
Technical method provided in this embodiment, by providing a underlay substrate, on the underlay substrate in multiple pixel regions
Micro LED is installed respectively, quantum dot film, quantum dot film are formed at least partly pixel region using inkjet printing technology
The micro LED in same pixel region is covered, encapsulated layer is formed, encapsulated layer is oppositely arranged with underlay substrate, and encapsulated layer covers
Multiple quantum dot films, so that the quantum dot in quantum dot film absorbs the light of micro LED and sending pair in same pixel region
The light of color is answered, and then no longer needs to the setting relatively large color membrane substrates of thickness, the thickness of display panel is reduced, is conducive to show
Show the thinning of panel, and quantum dot film can be prepared using inkjet printing technology, preparation process is simple, can simplify display surface
The preparation process of plate, in addition, being based on quantum dot self-characteristic, the photochromic purity of display panel is higher, colour gamut is wider and the service life more
It is long.
In the present embodiment, it after micro LED being installed respectively on the underlay substrate in multiple pixel regions, can also wrap
It includes: forming pixel separation layer.
Optionally, it is formed before encapsulated layer, can also include: removal pixel separation layer.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of display panel, which is characterized in that including underlay substrate, multiple micro LED, multiple quantum dot films and envelope
Fill layer；
The display panel further includes multiple pixel regions, is equipped on the underlay substrate in each pixel region described
Micro LED, the quantum dot film is provided in at least partly described pixel region, and the quantum dot film covering is same described
The micro LED in pixel region；
The encapsulated layer is oppositely arranged with the underlay substrate, and the encapsulated layer covers the quantum in multiple pixel regions
Point film.
2. display panel according to claim 1, which is characterized in that it further include pixel separation layer, the pixel separation layer
Including multiple through-holes, the through-hole and the pixel region are corresponded, the micro LED and the amount in the pixel region
Son point film is located in the corresponding through-hole；The encapsulated layer covers the pixel separation layer.
3. display panel according to claim 2, which is characterized in that the material of the pixel separation layer is transparent photomask
Glue.
4. display panel according to claim 1, which is characterized in that multiple pixel regions include red pixel area, green
Color pixel area and blue pixel area, the luminescent color of the display panel is red in the red pixel area, the green picture
The luminescent color of the display panel is green in plain area, and the luminescent color of the display panel in the blue pixel area is
Blue.
5. display panel according to claim 4, which is characterized in that the luminescent color of the micro LED is blue.
6. display panel according to claim 5, which is characterized in that multiple quantum dot films are set to the red
In pixel region and the green pixel area.
7. display panel according to claim 1, which is characterized in that the value range of the thickness of the quantum dot film is
Less than or equal to 1 μm.
8. a kind of display device, which is characterized in that including the described in any item display panels of the claims 1-7.
9. a kind of preparation method of display panel is used to prepare the described in any item display panels of the claims 1-7, special
Sign is, comprising:
One underlay substrate is provided；
Micro LED is installed respectively on the underlay substrate in multiple pixel regions；
Quantum dot film is formed in at least partly described pixel region using inkjet printing technology, the quantum dot film covering is same
The micro LED in one pixel region；
The encapsulated layer is formed, the encapsulated layer is oppositely arranged with the underlay substrate, and encapsulated layer covering is multiple described
Quantum dot film.
10. preparation method according to claim 9, which is characterized in that the lining in multiple pixel regions
After micro LED is installed respectively on substrate, further includes:
Form the pixel separation layer.
11. preparation method according to claim 10, which is characterized in that described to be formed before the encapsulated layer, further includes:
Remove the pixel separation layer.
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| CN201910414083.1A CN110136595A (en) | 2019-05-17 | 2019-05-17 | A kind of display panel and preparation method thereof, display device |
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