CN110854256A - Display panel and display device - Google Patents
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- CN110854256A CN110854256A CN201911184094.1A CN201911184094A CN110854256A CN 110854256 A CN110854256 A CN 110854256A CN 201911184094 A CN201911184094 A CN 201911184094A CN 110854256 A CN110854256 A CN 110854256A
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- 238000005538 encapsulation Methods 0.000 claims description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
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- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a plurality of sub-pixel areas and further comprises: the first substrate and the second substrate are oppositely arranged; the light-emitting units are positioned on one side, close to the second substrate, of the first substrate, are positioned in the sub-pixel areas and are arranged in one-to-one correspondence with the sub-pixel areas; the color film layer is positioned on one side, close to the first substrate, of the second substrate and comprises a plurality of quantum dot films, and the quantum dot films are arranged in part or all of the sub-pixel regions; the orthographic projection of the light-emitting unit on the first substrate is positioned in the orthographic projection of the quantum dot thin film in the corresponding sub-pixel area on the first substrate; the light-emitting unit is isolated from the color film layer through a heat insulation part. The embodiment of the invention can avoid the damage of the color film layer and prolong the service life of the display panel.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology, the application of display panels is more and more extensive, and the display panels play a greater role in the society.
The display panel with light emitting units emitting light of the same color is popular among various manufacturers due to its simple manufacturing process, and the full color display of the display panel is realized by using a colorization technology such as a color film.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for avoiding the damage of the display panel and ensuring the full-color display effect of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including a plurality of sub-pixel regions, and further including: the first substrate and the second substrate are oppositely arranged; the light-emitting units are positioned on one side, close to the second substrate, of the first substrate, are positioned in the sub-pixel areas and are arranged in one-to-one correspondence with the sub-pixel areas; the color film layer is positioned on one side, close to the first substrate, of the second substrate and comprises a plurality of quantum dot films, and the quantum dot films are arranged in part or all of the sub-pixel regions; the orthographic projection of the light-emitting unit on the first substrate is positioned in the orthographic projection of the quantum dot thin film in the corresponding sub-pixel area on the first substrate; the light-emitting unit is isolated from the color film layer through a heat insulation part.
Optionally, the insulation comprises air or nitrogen.
Optionally, the light emitting device further comprises an encapsulation part for coating the light emitting unit.
Optionally, the distance between the encapsulation portion and the color film layer is 10 to 500 micrometers.
Optionally, the encapsulation portion is a protruding structure;
preferably, the encapsulation is spherical.
Optionally, a gap exists between the encapsulation portions.
Optionally, the display device further comprises a frame sealing adhesive arranged around the plurality of sub-pixel regions, and the first substrate and the second substrate are attached to each other through the frame sealing adhesive;
and a gap is formed between the frame sealing glue and the packaging part.
Optionally, the display panel includes a plurality of pixel regions, and each pixel region includes at least three sub-pixel regions; in each pixel area, each light-emitting unit is used for emitting blue light, wherein a red light quantum dot film and a green light quantum dot film are respectively arranged in the two sub-pixel areas; or, in each pixel region, each light-emitting unit is used for emitting white light, wherein a red light quantum dot film, a green light quantum dot film and a blue light quantum dot film are respectively arranged in three sub-pixel regions.
Optionally, the light emitting unit is a micro LED chip.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel according to the first aspect.
According to the technical scheme of the embodiment, the adopted display panel comprises a plurality of sub-pixel areas, and further comprises a first substrate and a second substrate which are oppositely arranged; the light-emitting units are positioned on one side of the first substrate close to the second substrate, are positioned in the sub-pixel regions and are arranged in a one-to-one correspondence manner; the color film layer is positioned on one side, close to the first substrate, of the second substrate and comprises a plurality of quantum dot films, and the quantum dot films are arranged in part or all of the sub-pixel regions; the orthographic projection of the light-emitting unit on the first substrate is positioned in the orthographic projection of the quantum dot thin film in the corresponding sub-pixel area on the first substrate; the light-emitting unit is isolated from the color film layer through the heat insulation part. The long-time during operation of luminescence unit can produce more heat, because has thermal-insulated portion between luminescence unit and the various rete, the heat can not conduct to the quantum dot film through thermal-insulated portion to avoided the quantum dot film to make its life-span reduce owing to overheated, prolonged the life of quantum dot film, and then promoted display panel's life.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background art, the inventor of the present invention has found through careful research that, since the light emitting unit generates a lot of heat during the light emitting process, the heat is conducted to the color film to shorten the service life of the color film, so that the display panel cannot realize full-color display, thereby affecting the use effect of the display panel.
Based on the technical problem, the invention provides the following solution:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and referring to fig. 1, the display panel includes a plurality of sub-pixel regions 1031, and further includes a first substrate 101 and a second substrate 102 that are disposed opposite to each other; a plurality of light emitting units 103 located on the first substrate 101 at a side close to the second substrate 102, the light emitting units 103 being located in the sub-pixel regions 1031 and arranged in one-to-one correspondence with the sub-pixel regions 1031; the color film layer is positioned on one side, close to the first substrate 101, of the second substrate 102, the color film layer comprises a plurality of quantum dot films 104, and the quantum dot films 104 are arranged in part or all of the sub-pixel regions 1031; an orthographic projection of the light emitting unit 103 on the first substrate 101, and an orthographic projection of the quantum dot thin film 104 in the corresponding sub-pixel region 1031 on the first substrate 101; the light emitting unit 103 is isolated from the color film layer by the heat insulation part 105.
Specifically, the display panel may include a plurality of scan lines and data lines, which are horizontally and vertically staggered, and which respectively provide corresponding scan signals and data signals to the light emitting units 103 and define a plurality of sub-pixel regions 1031; the first substrate 101 may be a driving circuit backplane on which a plurality of pixel driving circuits are disposed, wherein the pixel driving circuits may be disposed in one-to-one correspondence with the light emitting units 103, and the pixel driving circuits may include thin film transistor structures therein to provide driving signals for the light emitting units 103, such as driving currents, to drive the light emitting units 103 to emit light; the second substrate 102 may be a transparent substrate, and light emitted by the light emitting unit 103 may exit to the outside of the display panel through the second substrate 102, thereby implementing light emitting display of the display panel; as shown in fig. 1, the colors of the lights emitted by the light emitting units 103 may be the same, for example, the lights can emit blue light, a quantum dot film 104 may be disposed in a part of the sub-pixel region 1031, the quantum dot film 104 may include a red light quantum dot film and a green light quantum dot film, the blue light emitted by the light emitting units 103 passes through the red light quantum dot film and then becomes red light, and passes through the second substrate 102 and then emits, the blue light emitted by the light emitting units 103 passes through the green light quantum dot film and then becomes green light, and passes through the second substrate 102 and then emits, and the red light, the green light and the blue light emitted by the second substrate 102 are mixed to form lights of various colors, thereby realizing full-color display; or, referring to fig. 2, the light emitting unit 103 may also emit white light, and at this time, all the sub-pixel regions 1031 may be configured to include quantum dot films, for example, a red quantum dot film, a green quantum dot film, and a blue quantum dot film are respectively configured, where the white light changes into red light after passing through the red quantum dot film, changes into green light after passing through the green quantum dot film, and changes into blue light after passing through the blue quantum dot film, so as to implement full-color display. The orthographic projection of the light-emitting unit 103 on the first substrate 101 is located in the orthographic projection of the corresponding quantum dot film 104 on the first substrate 101, so that most of light emitted by the light-emitting unit 103 can pass through the quantum dot film 104, and a black matrix can be arranged between the red light quantum dot film and the green light quantum dot film, so that the light emitted by the light-emitting unit 103 is prevented from being directly emitted through a gap between the red light quantum dot film and the green light quantum dot film without being converted by the quantum dot film, and further the display effect is influenced.
The thermal insulation part 105 is a poor thermal conductor, that is, the thermal insulation part 105 has poor thermal conductivity, and the thermal insulation part 105 can fill the gap between the first substrate 101 and the second substrate 102, so as to ensure poor thermal conductivity between the light emitting unit 103 and the quantum dot film 104; when the light emitting unit 103 emits light for a long time, more heat can be generated, by arranging the heat insulation part 105, the heat generated by the light emitting unit 103 can not be conducted to the quantum dot film 104 or can be conducted to the quantum dot film 104 in a very small amount, the quantum dot film 104 can not be affected by heat, so that the quantum dot film can not be damaged due to heating, the service life of the quantum dot film is prolonged, the service life of the display panel is prolonged, and the display panel can stably emit full-color light.
According to the technical scheme of the embodiment, the adopted display panel comprises a plurality of sub-pixel areas, and further comprises a first substrate and a second substrate which are oppositely arranged; the light-emitting units are positioned on one side of the first substrate close to the second substrate, are positioned in the sub-pixel regions and are arranged in a one-to-one correspondence manner; the color film layer is positioned on one side, close to the first substrate, of the second substrate and comprises a plurality of quantum dot films, and the quantum dot films are arranged in part or all of the sub-pixel regions; the orthographic projection of the light-emitting unit on the first substrate is positioned in the orthographic projection of the quantum dot thin film in the corresponding sub-pixel area on the first substrate; the light-emitting unit is isolated from the color film layer through the heat insulation part. The long-time during operation of luminescence unit can produce more heat, because has thermal-insulated portion between luminescence unit and the various rete, the heat can not conduct to the quantum dot film through thermal-insulated portion to avoided the quantum dot film to make its life-span reduce owing to overheated, prolonged the life of quantum dot film, and then promoted display panel's life.
Optionally, the insulation 105 comprises air or nitrogen.
Specifically, the heat insulating portion 105 may be a heat insulating gas, which is light in weight, thereby contributing to reduction in the overall weight of the display panel; the display panel can be directly prepared in an adiabatic gas environment in the preparation process, so that the process difficulty is reduced; meanwhile, the cost of air or nitrogen is low, and the overall cost of the display panel is reduced; when the heat insulating part 105 is nitrogen gas, oxidation of the light emitting unit 103 can be prevented, thereby further improving the lifespan of the light emitting unit 103.
Optionally, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 3, the display panel further includes an encapsulation portion 106 that encapsulates the light emitting unit 103.
Specifically, the encapsulation portions 106 may be disposed in one-to-one correspondence with the light emitting units 103, so as to protect the light emitting units 103 from the heat insulation portion 105, for example, when the heat insulation portion 105 is air, because the air contains more oxygen, the light emitting units 103 are easily oxidized with oxygen, and thus the light emitting units 103 are easily damaged, which seriously affects the use effect of the display panel. Therefore, after the light emitting unit 103 is manufactured, the encapsulation portion 106 may be manufactured first, so as to protect the light emitting unit 103 from the external environment, at this time, the display panel may be manufactured in an air or nitrogen environment, the heat insulation portion 105 does not need to be separately manufactured, and the light emitting unit 103 is not oxidized, so that the service life is long.
Optionally, the distance d between the encapsulation portion 106 and the color film layer is 10 to 500 micrometers.
Specifically, if the distance d is too small, the quantum dot film 104 is too close to the encapsulation 103, and when the thermal insulation performance of the encapsulation 103 is poor, heat generated by the long-time operation of the light emitting unit 103 is conducted to the quantum dot film 104 through the encapsulation 106 and the thermal insulation 105, so that the quantum dot film 104 is heated to reduce the service life; if the distance d is too large, the overall thickness of the display panel is large, which is not favorable for the overall lightness and thinness of the display panel; the distance between the packaging part 106 and the color film layer is 10-500 microns, so that the heat insulation part can be ensured to effectively prevent heat generated by the light emitting unit 103 from being conducted to the quantum dot film 104, the service life of the quantum dot film 104 is prolonged, the whole thickness of the display panel can be prevented from being thick, the whole thickness of the display panel can be reduced, and the display panel is light and thin.
Optionally, the encapsulant 106 is a raised structure; preferably, the encapsulation 106 is spherical; preferably, the material of the encapsulation portion 106 includes resin.
Specifically, the encapsulation portion 106 is set to be a spherical convex structure, light emitted by the light emitting unit 103 is refracted through the interface between the encapsulation portion 106 and the thermal insulation portion 105 and then converges in a direction perpendicular to the first substrate 101, that is, most of light emitted by the light emitting unit 103 is transmitted to the second substrate 102 in the corresponding sub-pixel region or the corresponding quantum dot film 104, so that the problem that the light emitted by the light emitting unit 103 cannot be emitted through the second substrate 102 to cause the lower light emitting efficiency of the display panel is avoided, further, the overall brightness of the display panel is improved, and the display effect is further improved. Meanwhile, the material of the encapsulation portion 106 is resin, which has the advantages of transparency, low cost and the like, and does not block the emergent light generated by the light emitting unit 103, so that the light emitting efficiency of the display panel is not affected, and the overall cost of the display panel can be further reduced, after the light emitting unit 103 is manufactured, liquid resin can be dripped on the light emitting unit 103, then the light emitting unit 103 is pressed into a sphere by a mold, and the resin and the light emitting unit 103 are in one-to-one correspondence by curing and the like, so that the encapsulation portion 106 is formed, the light emitting unit 103 is protected, and the light emitted by the light emitting unit 103 is converged to the light emitting surface of the corresponding sub-pixel region.
Optionally, there is a gap between the encapsulations 106.
Specifically, the encapsulation portions 106 are made of resin, and the resin material is heated to generate an expansion effect, if the encapsulation portions 106 corresponding to the adjacent light emitting units 103 are adjacent to each other, when the light emitting units 103 generate more heat due to long-time work or other reasons, the encapsulation portions 106 will also generate more severe expansion, and the adjacent encapsulation portions 106 may be squeezed, thereby causing damage to the encapsulation portions 106; when the package portion 106 is damaged, the light emitting unit 103 cannot be protected, and meanwhile, light generated by the light emitting unit 103 may not be converged to a corresponding light emitting surface, so that the service life and the display effect of the display panel are seriously affected; by arranging the gap between the packaging parts 106, the packaging parts 106 are not extruded when being heated and expanded, so that the packaging parts 106 are not damaged due to extrusion, the light-emitting unit 103 can be effectively protected by the packaging parts 106, light emitted by the light-emitting unit 103 can be converged to the corresponding light-emitting surface, and high-quality display of the display panel is ensured.
Optionally, with reference to fig. 3, the display panel further includes a frame sealing adhesive 107 disposed around the plurality of sub-pixel regions, and the first substrate 101 and the second substrate 102 are attached to each other by the frame sealing adhesive 107; a gap exists between the sealant 107 and the sealing portion 106.
Specifically, the frame sealing adhesive 107 may be a photoresist, and is disposed at an edge of the display panel and capable of supporting the first substrate 101 and the second substrate 102, so that a cavity for accommodating the thermal insulation portion 105 is formed between the first substrate 101 and the second substrate 102. Meanwhile, a gap exists between the frame sealing adhesive 107 and the packaging part 106, when the light emitting unit 103 generates a large amount of heat due to long-time work or other reasons, the packaging part 106 can also expand seriously, but the packaging part 106 cannot extrude the frame sealing adhesive 107 after being heated and expanded, so that the frame sealing adhesive 107 is prevented from being damaged due to extrusion, that is, the first substrate 101 and the second substrate 102 can be effectively attached through the frame sealing adhesive 107, a space for accommodating the heat insulation part 105 is formed, and the high-quality packaging effect of the display panel is ensured.
Optionally, the display panel comprises a plurality of pixel regions, each pixel region comprising at least three sub-pixel regions; in each pixel region, each light-emitting unit 103 is used for emitting blue light, wherein a red light quantum dot film and a green light quantum dot film are respectively arranged in two sub-pixel regions; or, in each pixel region, each light-emitting unit is used for emitting white light, wherein a red light quantum dot film, a green light quantum dot film and a blue light quantum dot film are respectively arranged in the three sub-pixel regions.
Specifically, the light-emitting unit 103 emitting blue light has higher light-emitting efficiency, and becomes red light after passing through the red light quantum dot film and becomes green light after passing through the green light quantum dot film, so that the display panel realizes full-color display. The LED chip 102 emitting blue light is easier to manufacture, the energy of the blue light is high, the red light quantum dot material and the green light quantum dot material are easier to excite to respectively emit red light and green light, and full-color light emission is easier to realize. It can be understood that the light emitting unit 103 can also emit white light, the white light becomes red light after passing through the red light quantum dot film, becomes green light after passing through the green light quantum dot film, and becomes blue light after passing through the blue light quantum dot film, thereby realizing full-color display.
Alternatively, the light emitting unit 103 is a micro LED chip.
Specifically, each LED chip may include an LED epitaxial structure, the LED epitaxial structure may include a p-type GaN layer, a multi-quantum well layer, and an n-type GaN layer, which are sequentially stacked, the multi-quantum well layer may be a material emitting blue light, and the LED chip may further include a first electrode contacting the p-type GaN layer and a second electrode contacting the n-type GaN layer, when the first electrode and the second electrode are connected with a signal, holes generated in the p-type GaN layer and electrons generated in the n-type GaN layer are combined in the multi-quantum well layer to generate excitons, and the excitons are unstably transited to generate energy, thereby exciting the multi-quantum well layer to radiate light energy.
Fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 4, a display device 20 includes the display panel 19 in the above embodiment, so that the display device according to the embodiment of the present invention also has the beneficial effects described in the above embodiment, and details are not repeated herein. Illustratively, the display device may be an electronic display device such as a mobile phone, a computer, or a television.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel comprising a plurality of sub-pixel regions, further comprising:
the first substrate and the second substrate are oppositely arranged;
the light-emitting units are positioned on one side, close to the second substrate, of the first substrate, are positioned in the sub-pixel areas and are arranged in one-to-one correspondence with the sub-pixel areas;
the color film layer is positioned on one side, close to the first substrate, of the second substrate and comprises a plurality of quantum dot films, and the quantum dot films are arranged in part or all of the sub-pixel regions; the orthographic projection of the light-emitting unit on the first substrate is positioned in the orthographic projection of the quantum dot thin film in the corresponding sub-pixel area on the first substrate; the light-emitting unit is isolated from the color film layer through a heat insulation part.
2. The display panel according to claim 1, wherein the heat insulating portion comprises air or nitrogen.
3. The display panel according to claim 1, further comprising a sealing portion which covers the light emitting unit.
4. The display panel according to claim 3, wherein a distance between the sealing portion and the color film layer is 10 to 500 μm.
5. The display panel according to claim 3, wherein the sealing portion is a convex structure;
preferably, the encapsulation is spherical.
6. The display panel according to claim 3, wherein a gap exists between the sealing portions.
7. The display panel according to claim 3, further comprising a frame sealing adhesive disposed around the plurality of sub-pixel regions, wherein the first substrate and the second substrate are attached by the frame sealing adhesive;
and a gap is formed between the frame sealing glue and the packaging part.
8. The display panel according to claim 1, wherein the display panel comprises a plurality of pixel regions, each of the pixel regions comprising at least three sub-pixel regions;
in each pixel area, each light-emitting unit is used for emitting blue light, wherein a red light quantum dot film and a green light quantum dot film are respectively arranged in the two sub-pixel areas;
or, in each pixel region, each light-emitting unit is used for emitting white light, wherein a red light quantum dot film, a green light quantum dot film and a blue light quantum dot film are respectively arranged in three sub-pixel regions.
9. The display panel according to claim 1, wherein the light emitting unit is a micro LED chip.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911184094.1A CN110854256B (en) | 2019-11-27 | 2019-11-27 | Display panel and display device |
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| CN201911184094.1A CN110854256B (en) | 2019-11-27 | 2019-11-27 | Display panel and display device |
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| CN110854256A true CN110854256A (en) | 2020-02-28 |
| CN110854256B CN110854256B (en) | 2022-04-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710770A (en) * | 2020-06-29 | 2020-09-25 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN114019713A (en) * | 2021-06-16 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Light-emitting component, display screen and manufacturing method of light-emitting component |
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| CN108022961A (en) * | 2017-11-09 | 2018-05-11 | 上海天马有机发光显示技术有限公司 | Organic electroluminescence display panel and display device |
| CN108666408A (en) * | 2018-07-04 | 2018-10-16 | 天津中环电子照明科技有限公司 | Even smooth heat-insulating type quantum dot LED packagings and lamps and lanterns |
| CN110504381A (en) * | 2019-08-23 | 2019-11-26 | 昆山工研院新型平板显示技术中心有限公司 | The production method and display device of display panel, display panel |
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| CN111710770A (en) * | 2020-06-29 | 2020-09-25 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN111710770B (en) * | 2020-06-29 | 2021-12-07 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| US12015022B2 (en) | 2020-06-29 | 2024-06-18 | Boe Technology Group Co., Ltd. | Display panel and method for manufacturing the same, display device |
| CN114019713A (en) * | 2021-06-16 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Light-emitting component, display screen and manufacturing method of light-emitting component |
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