CN109309108A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN109309108A CN109309108A CN201710617952.1A CN201710617952A CN109309108A CN 109309108 A CN109309108 A CN 109309108A CN 201710617952 A CN201710617952 A CN 201710617952A CN 109309108 A CN109309108 A CN 109309108A
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- display panel
- substrate
- reflecting layer
- barrier bodies
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Abstract
The embodiment of the invention discloses a kind of display panel and display device, which includes: substrate, multiple open regions including array arrangement, and around the non-open region of the open region, the pixel confining layer being formed in the non-open region of the substrate；It is formed in the anti-reflecting layer that the pixel confining layer deviates from the substrate side, the upright projection of the anti-reflecting layer on the substrate is located in the upright projection of the pixel confining layer on the substrate, the anti-reflecting layer is fiber waveguide device, so that the external environmental light for being incident on the anti-reflecting layer is trapped in the anti-reflecting layer.Compared with existing display panel, the completely black better effect of display panel closed state provided in an embodiment of the present invention, and there is higher contrast.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of display panel and display devices.
Background technique
Organic light emitting display (Organic light Emitting Display, OLED) does not need backlight due to having
Source, the technological merits such as contrast is high, thickness is thin, visual angle is wide, reaction speed, bending resistance are good, have become display industry and develop
One of emphasis direction.
Existing organic light emitting display panel often reduces display panel to external environmental light only by rotatory polarization piece
Reflex so that black can be presented in display panel in off position, and makes display panel contrast with higher.
But display panel is reduced only with rotatory polarization piece at present to the reflex of external environmental light, technology effect
Fruit is unsatisfactory, is not able to satisfy the demand of user's effect completely black to display panel closed state and high contrast.
Summary of the invention
The present invention provides a kind of display panel and display device, to realize that promote display panel completely black in off position
Effect, and make the purpose of display panel contrast with higher.
In a first aspect, the embodiment of the invention provides a kind of display panel, which includes:
Substrate, multiple open regions including array arrangement, and around the non-open region of the open region,
The pixel confining layer being formed in the non-open region of the substrate；
It is formed in the anti-reflecting layer that the pixel confining layer deviates from the substrate side, the anti-reflecting layer is in the substrate
On upright projection be located in the upright projection of the pixel confining layer on the substrate, the anti-reflecting layer be optical waveguide
Part.
Further, the anti-reflecting layer includes first for being formed in the pixel confining layer and deviating from the substrate side
And deviating from second of the pixel confining layer positioned at described first, first refractive index is greater than described second
Refractive index；
Described first the first barrier bodies including multiple periodic arrangements, the bottom surface of first barrier bodies is close to described
Pixel confining layer gradually increases along the cross section that the first barrier bodies are parallel to the substrate described in the orientation substrate is perpendicularly oriented to
Greatly；Described second gap location being set between adjacent first barrier bodies, so that described first and described second
It is chimeric that portion is seamless.
Further, the display panel includes the first direction and second direction parallel with the display panel, described
First direction and intersect with the second direction；
First barrier bodies arrange in a second direction, extend in a first direction, and first barrier bodies are perpendicular to institute
The section for stating first direction is triangle or trapezoidal.
Further, first barrier bodies are arranged in M row N column array, and the shape of first barrier bodies is pyramid
Or prismatic table shape, wherein M and N is the positive integer greater than 1.
Further, the shape of first barrier bodies is triangular pyramidal or quadrangle taper.
Further, the ratio of the height of first barrier bodies and the width of first barrier bodies bottom surface is greater than or waits
In 5:1.
Further, the open region of the substrate is provided with first electrode layer and is formed in the first electrode
Layer deviates from the luminescent layer of the substrate side；
The display panel further includes the second electrode lay, and the second electrode lay is set to the luminescent layer away from described the
The side of one electrode layer, and the second electrode lay covers the luminescent layer and the pixel confining layer；
The anti-reflecting layer is located at the side that the second electrode lay deviates from the substrate.
It further, further include light coupling layer, the light coupling layer is located at the anti-reflecting layer and the second electrode lay
Between.
It further, further include thin-film encapsulation layer, the thin-film encapsulation layer is located at the anti-reflecting layer and second electricity
Between the layer of pole.
Second aspect, the embodiment of the invention also provides a kind of display device, which includes the embodiment of the present invention
Any one display panel provided.
The embodiment of the present invention is by being arranged anti-reflecting layer away from substrate side in pixel confining layer, and anti-reflecting layer is in base
Upright projection on plate is located at pixel confining layer in the upright projection on substrate, and anti-reflecting layer is fiber waveguide device, so as to enter
The external environmental light for being mapped to the anti-reflecting layer is trapped in the anti-reflecting layer, is solved inclined only with circle in existing display panel
Mating plate reduces display panel to the reflex of external environmental light, and technical effect is undesirable, be not able to satisfy user to display
The problem of demand of the completely black effect of panel closed state and high contrast, it is complete in off position to realize promotion display panel
Black effect, and make the effect of display panel contrast with higher.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the section structure of the A1-A2 along Fig. 1；
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the enlarged drawing of anti-reflecting layer in Fig. 3；
Fig. 5 is first perspective view in anti-reflecting layer in Fig. 3
The perspective view that Fig. 6 is first in another anti-reflecting layer provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the first barrier bodies in Fig. 6；
Fig. 8 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention.Fig. 2 is that A1-A2 is cutd open along Fig. 1
Face structural schematic diagram.Referring to Fig. 1 and Fig. 2, which includes: substrate 10, multiple open regions 11 including array arrangement, with
And the non-open region 12 around open region 11, the pixel confining layer 13 being formed in the non-open region 12 of substrate 10；It is formed in picture
Plain confining layers 13 deviate from the anti-reflecting layer 14 of 10 side of substrate, and the upright projection of anti-reflecting layer 14 on the substrate 10 is located at pixel limit
In the upright projection of given layer 13 on the substrate 10, anti-reflecting layer 14 is fiber waveguide device.
Fiber waveguide device refers to, by the lightguide that light wave is limited in the inside of certain particular medium or surface is nearby transmitted
Part.There are many specific structures of anti-reflecting layer 14, illustratively gives a kind of structural representation of anti-reflecting layer in Fig. 3 and Fig. 4
Figure.Wherein, Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Fig. 4 is anti-reflecting layer in Fig. 3
Enlarged drawing.Fig. 5 is first perspective view in anti-reflecting layer in Fig. 3.Referring to Fig. 3, Fig. 4 and Fig. 5, which includes
Pixel confining layer 13 is formed in away from first 141 of 10 side of substrate and is located at first 141 away from pixel confining layer 13
Second 142, first 141 refractive index is greater than second 142 refractive index；First 141 includes multiple periodically rows
First barrier bodies 1411 of column, close to pixel confining layer 13, edge is perpendicularly oriented to substrate 10 for the bottom surface 1412 of the first barrier bodies 1411
The cross section that the first barrier bodies of direction 1411 are parallel to substrate 10 is gradually increased；It is set to the first adjacent barrier for second 142
Gap location between body 1411, so that first 141 and second 142 seamless chimeric.
With continued reference to Fig. 4, after external environmental light I is incident on second 142 of the anti-reflecting layer 14, due to first
141 refractive index is greater than second 142 refractive index, and light can be all-trans in the interface of first 141 and second 142
It penetrates, so that light is limited in second 142 inside and first 141 and second 142 interface is nearby propagated.Due to
It is gradually increased along the cross section that 10 the first barrier bodies of direction 1411 of substrate are parallel to substrate 10 is perpendicularly oriented to, so that light has
The trend being totally reflected infinitely occurs for first 141 and second 142 interface, so that light is bound in second
It can not be emitted from the anti-reflecting layer 14 in 142, that is, the external environmental light I for being incident on anti-reflecting layer 14 is trapped in the anti-reflecting layer 14
In, in other words, anti-reflecting layer 14 can absorb external environmental light I incident thereon.
Above-mentioned technical proposal is by being arranged anti-reflecting layer away from substrate side in pixel confining layer, and anti-reflecting layer is in base
Upright projection on plate is located at pixel confining layer in the upright projection on substrate, and anti-reflecting layer is fiber waveguide device, so as to enter
The external environmental light for being mapped to the anti-reflecting layer is trapped in the anti-reflecting layer, is avoided external environmental light and is incident on pixel confining layer
It reflects after 13 through pixel confining layer 13 and is received by human eye.In this way, when display panel is in close state, shining in display panel
Unit does not shine, and the external environmental light I for being incident on anti-reflecting layer 14 is absorbed by anti-reflecting layer 14, and human eye can not perceive outside the part
Boundary environment light I, and then achieve the purpose that so that display panel has preferable completely black effect in off position.
The open region 11 of display panel is the viewing area of display panel, and the non-open region 12 of display panel is display panel
Non-display area.In display panel practical work process, the light that display panel open region 11 is formed is most of from display panel
Show side outgoing, to perform image display, small part light will form spuious after the refraction of part film layer, reflection in display panel
Light.When user is when watching display panel, if human eye receives excessive stray light, user will affect to the good opinion of display picture
Degree.Anti-reflecting layer 14 can absorb stray light incident thereon in above-mentioned technical proposal, improve the display effect of display panel.
Contrast is for measuring display panel display effect important parameter.Contrast specifically refers to display panel
When showing piece image, same point is most bright in viewing area (white) and it is most dark when (black) brightness ratio.Contrast is got over
Height means that the color for the image that display panel is presented is more gorgeous.In existing display panel, stray light or external environmental light
After the reflection or refraction of multiple film layers in display panel, there are the open region 11 that some light is incident on the display panel,
And from the outgoing of the open region of display panel 11, into human eye after the reflection of 11 part film layer of open region, so that display panel is most
The brightness value of (black) is higher when dark, and the contrast of display panel is low.Above-mentioned technical proposal, since anti-reflecting layer 14 can absorb
Stray light and external environmental light incident thereon, can be improved the contrast of display panel.
To sum up, the embodiment of the present invention is by being arranged anti-reflecting layer, and antireflection away from substrate side in pixel confining layer
Upright projection of the layer on substrate is located at pixel confining layer in the upright projection on substrate, and anti-reflecting layer is fiber waveguide device,
So that the external environmental light for being incident on the anti-reflecting layer is trapped in the anti-reflecting layer, solves and only adopted in existing display panel
Display panel is reduced with rotatory polarization piece to the reflex of external environmental light, technical effect is undesirable, is not able to satisfy user
The problem of demand of the effect and high contrast completely black to the closed state of display panel, realizes that promoting display panel is closing
The completely black effect of state, and make the effect of display panel contrast with higher.
With continued reference to Fig. 4 and Fig. 5, display panel includes the first direction parallel with display panel (i.e. X-axis side in Fig. 5
To) and second direction (i.e. Y direction in Fig. 5), first direction (i.e. X-direction in Fig. 5) and with second direction (i.e. Fig. 5
In Y direction) intersect；First barrier bodies 1411 arrange in a second direction (i.e. Y direction in Fig. 5), (i.e. along first direction
X-direction in Fig. 5) extend, and the first barrier bodies 1411 are perpendicular to the section of first direction (i.e. X-direction in Fig. 5)
Triangle is trapezoidal.In Fig. 5 illustratively, the first barrier bodies 1411 cuing open perpendicular to first direction (i.e. X-direction in Fig. 5)
Face is triangle.
A kind of structural schematic diagram of anti-reflecting layer is illustratively given in Fig. 4 and Fig. 5.This is only a tool of the invention
Body example, rather than limitation of the present invention.The solid that Fig. 6 is first in another anti-reflecting layer provided in an embodiment of the present invention
Figure.Referring to Fig. 6, which arranges in M row N column array, and the shape of the first barrier bodies 1411 is pyramid or rib
Platform shape, wherein M and N is the positive integer greater than 1.Optionally, the shape of the first barrier bodies 1411 is triangular pyramidal or quadrangular pyramid
Shape.In Fig. 6 illustratively, the shape of the first barrier bodies 1411 is quadrangle taper.
Fig. 7 is the structural schematic diagram of the first barrier bodies in Fig. 6.Referring to Fig. 7, the bottom surface CDEF and base of the first barrier bodies 1411
10 place plane of plate is parallel, with the vertical range of the vertex O of the first barrier bodies 1411 and bottom surface CDEF for the first barrier bodies 1411
Height, with 1411 bottom surface CDEF of the first barrier bodies be parallel to second direction (i.e. Y direction in Fig. 7) side length CD be first
The width of 1411 bottom surface of barrier bodies.It will be understood by those skilled in the art that the height of the first barrier bodies 1411 and the first barrier bodies
The ratio of the width of 1411 bottom surfaces is bigger, and anti-reflecting layer 14 absorbs the effect of stray light and external environmental light incident thereon
Better, therefore, optionally, the height of the first barrier bodies 1411 and the ratio of the width of 1411 bottom surface of the first barrier bodies are greater than or wait
In 5:1.But the height of the first barrier bodies 1411 and the ratio of the width of 1411 bottom surface of the first barrier bodies are bigger, anti-reflecting layer 14
Complex manufacturing technology degree also can be bigger.
With continued reference to Fig. 3, the open region 11 of the substrate 10 of the display panel is provided with first electrode layer 111 and is formed
Deviate from the luminescent layer 112 of 10 side of substrate in first electrode layer 111；Display panel further includes the second electrode lay 113, second electrode
Layer 113 be set to luminescent layer 112 deviate from first electrode layer 111 side, and the second electrode lay 113 cover luminescent layer 112 and
Pixel confining layer 13；Anti-reflecting layer 14 is located at the side that the second electrode lay 113 deviates from substrate 10.
When being actually arranged, first electrode layer 111 may serve as anode, and the second electrode lay 113 may serve as yin
Pole；Alternatively, first electrode layer 111 may serve as cathode, the second electrode lay 113 may serve as anode.
In view of the material of current the second electrode lay 113 mostly uses silver, since silver has good reflective character, pass through
Anti-reflecting layer 14 is set to the side that the second electrode lay 113 deviates from substrate 10, it is possible to reduce external environmental light is in second electrode
A possibility that reflected light is formed at layer 113.
It is below anode with first electrode layer 111, the second electrode lay 113 is the work to the display panel for cathode
Principle is illustrated.When work, apply a bias voltage between the anode and cathode of the display panel, hole and electronics are broken through
Interface energy barrier is migrated from anode and cathode to luminescent layer respectively, and on the light-emitting layer, the compound generation exciton of electrons and holes swashs
Son it is unstable, give off energy, transfer energy to the molecule of organic luminescent substance in luminescent layer, make its from ground state transition to swash
Send out state.Excitation state is very unstable, and excited molecule returns to ground state from excitation state, radiation transistion and generate luminescence phenomenon.
Further, which can also include the first auxiliary functional layers and the second auxiliary functional layers, be carried with improving
Flow the brightness and efficiency of the injectability, organic light emitting display panel of sub (including electrons and holes).First auxiliary functional layers
Between first electrode layer 111 and luminescent layer 112, it can be the auxiliary functional layers of cavity type, can have multilayered structure,
For example including hole injection layer, hole transmission layer and electronic barrier layer.Second auxiliary functional layers are located at the second electrode lay 113 and hair
Between photosphere 112, it can be the auxiliary functional layers of electron type, can have multilayered structure, for example including electron injecting layer, electricity
Sub- transport layer and hole blocking layer.The first auxiliary functional layers, luminescent layer and the second auxiliary functional layers of display panel can pass through steaming
Plating mode is formed.
Fig. 8 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Compared with above-described embodiment, figure
The display panel provided in 8 further includes light coupling layer.Referring to Fig. 8, which is located at anti-reflecting layer 14 and second electrode
Between layer 113.
If considering, display panel does not include light coupling layer 16, and light is injected into the process in air by the second electrode lay 113,
Substantially light process that optically thinner medium is injected by optically denser medium, interface of the light in the second electrode lay 113 and air
It easily reflects, the transmitance of the light made is low.The essence that light coupling layer 16 is arranged in technical scheme is to change display
The refractive index in the face that panel light emission side is contacted with air to inhibit the reflection of light, and then improves the light transmittance of light.
In addition, light coupling layer 16 is set between anti-reflecting layer 14 and the second electrode lay 113, it can be avoided and be incident on
The external environmental light of light coupling layer 16 is optically coupled after layer 16 reflects and is received by human eye, and absorbs spuious in display panel
Light to promote display panel completely black effect in off position, and makes display panel contrast with higher.
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Compared with above-described embodiment, figure
The display panel provided in 9 further includes thin-film encapsulation layer.Referring to Fig. 9, which is located at anti-reflecting layer 14 and second
Between electrode layer 113.The effect of thin-film encapsulation layer 17 is that water oxygen invades in display panel in barrier air, extends display panel
Service life.In addition, by the way that the thin-film encapsulation layer 17 is arranged between anti-reflecting layer 14 and the second electrode lay 113.It can be to avoid
Be incident on thin-film encapsulation layer 17 external environmental light reflected by thin-film encapsulation layer 17 after received by human eye, and absorb display surface
Stray light in plate to promote display panel completely black effect in off position, and makes display panel with higher right
Degree of ratio.
The embodiment of the invention also provides a kind of display devices.Figure 10 is a kind of display device provided in an embodiment of the present invention
Structural schematic diagram.Referring to Figure 10, which includes any one display panel 201 provided in an embodiment of the present invention.
The display device is specifically as follows mobile phone, laptop, intelligent wearable device and the information enquiry machine of saloon etc..
The embodiment of the present invention is by being arranged anti-reflecting layer away from substrate side in pixel confining layer, and anti-reflecting layer is in base
Upright projection on plate is located at pixel confining layer in the upright projection on substrate, and anti-reflecting layer is fiber waveguide device, so as to enter
The external environmental light for being mapped to the anti-reflecting layer is trapped in the anti-reflecting layer, is solved inclined only with circle in existing display panel
Mating plate reduces display panel to the reflex of external environmental light, and technical effect is undesirable, be not able to satisfy user to display
The problem of demand of the completely black effect of the closed state of panel and high contrast, realizes and promotes display panel in off position
Completely black effect, and make the effect of display panel contrast with higher.
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 (10)
1. a kind of display panel characterized by comprising
Substrate, multiple open regions including array arrangement, and around the non-open region of the open region,
The pixel confining layer being formed in the non-open region of the substrate；
It is formed in the anti-reflecting layer that the pixel confining layer deviates from the substrate side, the anti-reflecting layer is on the substrate
Upright projection is located in the upright projection of the pixel confining layer on the substrate, and the anti-reflecting layer is fiber waveguide device.
2. display panel according to claim 1, which is characterized in that the anti-reflecting layer includes being formed in the pixel limit
Given layer deviates from first of the substrate side and deviates from second of the pixel confining layer positioned at described first, described
First refractive index is greater than second refractive index；
Described first the first barrier bodies including multiple periodic arrangements, the bottom surface of first barrier bodies is close to the pixel
Confining layers are gradually increased along the cross section that the first barrier bodies are parallel to the substrate described in the orientation substrate is perpendicularly oriented to；Institute
Second gap location being set between adjacent first barrier bodies is stated, so that described first and described second seamless
It is chimeric.
3. display panel according to claim 2, which is characterized in that the display panel includes flat with the display panel
Capable first direction and second direction, the first direction and intersects with the second direction；
First barrier bodies arrange in a second direction, extend in a first direction, and first barrier bodies are perpendicular to described
The section in one direction is triangle or trapezoidal.
4. display panel according to claim 2, which is characterized in that
First barrier bodies are arranged in M row N column array, and the shapes of first barrier bodies is pyramid or prismatic table shape, wherein M
With the positive integer that N is greater than 1.
5. display panel according to claim 4, which is characterized in that the shape of first barrier bodies be triangular pyramidal or
Quadrangle taper.
6. display panel according to claim 4, which is characterized in that the height of first barrier bodies and first resistance
The ratio of the width of spacer bottom surface is greater than or equal to 5:1.
7. display panel according to claim 1, which is characterized in that
The open region of the substrate is provided with first electrode layer and is formed in the first electrode layer away from the substrate
The luminescent layer of side；
The display panel further includes the second electrode lay, and the second electrode lay is set to the luminescent layer away from first electricity
The side of pole layer, and the second electrode lay covers the luminescent layer and the pixel confining layer；
The anti-reflecting layer is located at the side that the second electrode lay deviates from the substrate.
8. display panel according to claim 7, which is characterized in that further include light coupling layer, the light coupling layer is located at
Between the anti-reflecting layer and the second electrode lay.
9. display panel according to claim 8, which is characterized in that it further include thin-film encapsulation layer, the thin-film encapsulation layer
Between the anti-reflecting layer and the second electrode lay.
10. a kind of display device, which is characterized in that including any one of the claim 1-9 display panel.
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| CN201710617952.1A CN109309108B (en) | 2017-07-26 | 2017-07-26 | Display panel and display device |
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| CN201710617952.1A CN109309108B (en) | 2017-07-26 | 2017-07-26 | Display panel and display device |
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| CN109309108B CN109309108B (en) | 2021-05-11 |
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Cited By (5)
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| CN110071151A (en) * | 2019-04-18 | 2019-07-30 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panels and flexible display apparatus |
| CN110085639A (en) * | 2019-04-23 | 2019-08-02 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and display device of luminescent panel, luminescent panel |
| CN110323353A (en) * | 2019-04-24 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | OLED display panel and display device |
| CN110429111A (en) * | 2019-07-15 | 2019-11-08 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN111029373A (en) * | 2019-11-18 | 2020-04-17 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110071151A (en) * | 2019-04-18 | 2019-07-30 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display panels and flexible display apparatus |
| CN110085639A (en) * | 2019-04-23 | 2019-08-02 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and display device of luminescent panel, luminescent panel |
| CN110323353A (en) * | 2019-04-24 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | OLED display panel and display device |
| CN110323353B (en) * | 2019-04-24 | 2021-09-28 | 昆山工研院新型平板显示技术中心有限公司 | OLED display panel and display device |
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| CN111029373A (en) * | 2019-11-18 | 2020-04-17 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN109309108B (en) | 2021-05-11 |
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