CN113140603B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113140603B CN113140603B CN202110391449.5A CN202110391449A CN113140603B CN 113140603 B CN113140603 B CN 113140603B CN 202110391449 A CN202110391449 A CN 202110391449A CN 113140603 B CN113140603 B CN 113140603B
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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Abstract
The application discloses display panel and display device, display panel includes: the light-emitting layer is arranged on one side of the substrate and comprises a plurality of first light-emitting units, second light-emitting units and third light-emitting units which are arranged in an array manner; the light filtering part comprises a first light filtering unit arranged at the first opening, a second light filtering unit arranged at the second opening and a light transmitting unit arranged at the third opening; and (7) planarizing the layer. In the display panel of this application, do not set up the filtering material of corresponding colour in the third opening, avoid filtering material ageing to verify in the link with the optical cement layer in the UV to take place the reaction and lead to deformation, filtering material inefficacy leads to the filtering luminosity to reduce the problem that the display panel colour that makes the deviation appears, can promote the yields of display panel production.
Description
Technical Field
The application relates to the field of display, in particular to a display panel and a display device.
Background
In the current organic light emitting display panel, a color filter is mostly used to replace a polarizer to filter the light entering the display panel, so as to reduce the reflection of the screen to the external light and improve the contrast of the screen.
The color filter produced by the prior art is easy to change in property under the action of high temperature and high pressure, so that the transmittance of the color filter is changed, the transmittance in the corresponding light shielding layer is changed, and the corresponding filtering effect cannot be achieved. In the area where the transmittance of the color resistor changes, the display panel may have a problem of color display deviation during operation, resulting in a decrease in the yield of the product.
Disclosure of Invention
The embodiment of the application provides a display panel, it can avoid the color filter nature to change and the transmissivity that leads to changes, guarantees that the transmissivity of filter layer is stable, promotes the yields of product.
In a first aspect, an embodiment of the present application provides a display panel, including: a substrate, a first electrode and a second electrode,
the light-emitting layer is arranged on one side of the substrate and comprises a plurality of first light-emitting units, second light-emitting units and third light-emitting units which are arranged in an array;
the light filtering part comprises a first light filtering unit, a second light filtering unit and a light transmitting unit, wherein the first light filtering unit is arranged in the first opening and has the same color as the first light emitting unit, the second light filtering unit is arranged in the second opening and has the same color as the second light emitting unit, and the light transmitting unit is arranged in the third opening;
and the planarization layer is formed by arranging the first organic material on the side, away from the light-emitting layer, of the filter layer, the orthographic projection of the planarization layer on the substrate covers the orthographic projection of the filter layer on the substrate, and the third opening corresponds to the green light-emitting unit in the light-emitting layer.
In another aspect, an embodiment of the present application provides a display device including the display panel as described above.
According to the display panel of this application embodiment, do not set up the filtering material of corresponding colour in the third opening, prevent because of the problem that the display panel colour that filtering material inefficacy leads to appears the deviation, can promote display panel's yields.
Drawings
Other features, objects, and advantages of the present application will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
FIG. 1 is a diagram illustrating transmittance test results before and after UV light aging test of a green filter unit in a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel according to still another embodiment of the present application;
FIG. 5 is a graph showing transmittance test results before and after UV light aging test of a light-transmitting unit in a display panel according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a display panel according to yet another embodiment of the present application;
fig. 7 is a schematic structural diagram of a display panel according to yet another embodiment of the present application;
fig. 8 is a schematic structural diagram of a display panel according to yet another embodiment of the present application;
fig. 9 is a schematic structural diagram of a display panel according to yet another embodiment of the present application;
fig. 10 is a schematic structural diagram of a display panel according to yet another embodiment of the present application;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present application.
Description of the reference numerals
1-a substrate;
2-a light-emitting layer; 201-a first light emitting unit; 202-a second light emitting unit; 203-a third light emitting unit; 204-pixel definition layer;
3-a filter layer; 301-a first opening; 302-a second opening; 303-a third opening; 304-a first filtering unit; 305-a second filtering unit; 306-a light transmissive unit; 307-a layer of modified filter material; 308-a light shielding unit;
4-a planarization layer; 401 — a first organic material; 402-a second organic material; 403-a fourth opening; 404-a filter compensation unit;
a1-transmittance curve of green filter before UV irradiation; a2-transmittance curve of UV green filter material after illumination; a3-transmittance curve before UV irradiation of first organic material; a4-transmittance curve of first organic material after UV irradiation
5-a touch layer;
10-a display panel; 100-display device.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Display panel of prior art filters the light of kicking into display panel through set up the filter layer on the luminescent layer to reduce the screen and to the reflection of external light, promote the contrast of screen. In the production of the filter layer, a factory test needs to be performed before the filter layer is shipped. In the UV aging verification process, the planarization layer may release gas under the conditions of light and high temperature from the filter unit to react with the filter components in the filter unit, and the filter may fail, and the transmittance may be reduced to cause brightness deviation of the display panel.
As shown in fig. 1, before UV light verification, transmittance of the filter structure of the substrate, the filter, the optical cement and the cover plate structure is initially checked, and a1 is a transmittance curve of the filter material, and the result shows that the transmittance in a wavelength band of 500nm to 600nm can reach 60% at most, and the transmittance of the filter material is normal, which can completely meet the requirement of filtering.
However, after the UV light aging experiment, the transmittance of the panel is tested again, as shown by the curve a2, it is found that the transmittance in the wavelength band of 500nm to 600nm is significantly reduced, which causes the color displayed by the display panel to be deviated, specifically, the displayed brightness is dark.
In order to ensure that the quality of a display panel product reaches a standard, a UV light aging verification link must be performed before the display panel leaves a factory to ensure that the product can keep good performance in a normal use process, however, under the experimental condition of the UV light aging verification, the performance of the filter material is changed, so that the display of the display panel has the problem of brightness deviation. Therefore, in order to solve the technical problem, embodiments of the present application provide a display panel, which can avoid the above technical problem of color deviation of the display panel due to filter failure.
The display panel according to the embodiment of the present application is described in detail below with reference to the drawings.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure, and as shown in fig. 2, the display panel includes a substrate 1, a light emitting layer 2, a filter layer 3, and a planarization layer 4.
The light emitting layer 2 is disposed above the substrate 1, and the light emitting layer 2 includes a plurality of first light emitting units 201, second light emitting units 202, and third light emitting units 203 arranged in an array.
And the filter layer 3 is arranged on one side of the light-emitting layer 2, which is far away from the substrate 1. The light shielding layer 3 includes a light shielding portion and a light filtering portion, the light shielding portion includes a plurality of first openings 301, second openings 302 and third openings 303 distributed in an array and corresponding to the first light emitting units 201, the second light emitting units 202 and the third light emitting units 203 one by one, the light filtering portion includes a first light filtering unit 304 disposed in the first opening 301 and having the same color as the first light emitting unit 201, a second light filtering unit 305 disposed in the second opening 302 and having the same color as the second light emitting unit 202, and a light transmitting unit 306 disposed in the third opening 303, and two adjacent openings are separated by a black light shielding unit 308.
And the planarization layer 4 is arranged on the side of the filter layer 3 far away from the light-emitting layer 2. By forming the first organic material 401 on the side of the light-shielding layer 3 facing away from the light-emitting layer 2, the orthographic projection of the planarization layer 4 on the substrate 1 covers the orthographic projection of the filter layer 3 on the substrate 1.
In the display panel according to the embodiment of the application, the third opening 303 is not provided with the filter material with the corresponding color, and after the filter material with the corresponding color is filled in the first opening 301 and the second opening 302, the filter material filled in the first opening 301 and the second opening 302 is a material whose performance is stable and does not change after verification. Therefore, the planarization layer 4 is directly deposited after filling, the material of the planarization layer 4 is directly filled in the third opening 303 to form the light transmitting unit 306, and the material performance of the planarization layer 4 is stable, so that the problem that the color of the display panel is deviated due to the fact that the transmittance is reduced due to the failure of the filter material and the color of the display panel is deviated due to the reaction of the filter material and the escaping gas in the optical adhesive layer in the UV aging verification link can be avoided, and the yield of the display panel can be improved without affecting the display of the display panel due to the high transmittance.
In some embodiments, the third opening 303 corresponds to a green light emitting unit in the light emitting layer 2. In the prior art, the third opening 303 is filled with a green filter material, so as to filter light with a specific wavelength, thereby improving the contrast of the screen. Through the foregoing description, further research in the present application finds that, in the UV aging test process of the green filter material, gas released from the optical cement easily reacts with the green filter material, which results in a decrease in transmittance of the green filter material, and a decrease in brightness of a portion of the display panel and a purple light. The green filter material is disposed at this time, so that the yield of the display panel is reduced. Therefore, the green filter material is omitted and replaced with another material. Through the technical scheme in the embodiment, the technical means that the green filter material is not arranged is adopted for solving the problem that the green filter material of the display panel is easy to lose efficacy in the UV aging test process, and the problem that the color of the display panel is deviated due to the fact that the green filter material loses efficacy is effectively avoided.
In some embodiments, referring to fig. 3, an area of the first opening 301 is larger than an area of the first light-emitting unit 201, and an orthogonal projection of the first opening 301 on the substrate 1 covers an orthogonal projection of the first light-emitting unit 201 on the substrate 1. The opening area of the first opening 301 can be enlarged by reducing the coverage area of the light shielding units 308 on both sides of the first opening 301. The area of the second opening 302 is larger than the area of the second light emitting unit 202 and the orthographic projection of the second opening 302 on the substrate 1 covers the orthographic projection of the second light emitting unit 202 on the substrate 1. The opening area of the second opening 302 can be enlarged by reducing the coverage area of the light shielding units 308 on both sides of the second opening 302. The area of the third opening 303 is smaller than that of the third light emitting unit 203, and the orthographic projection of the third light emitting unit 203 on the substrate 1 covers the orthographic projection of the light transmitting unit 306 on the substrate. The area of the third opening 303 can be reduced by increasing the coverage area of the light shielding units 308 on both sides of the third opening 303.
As shown in fig. 3, which is a schematic structural diagram of the display panel in the above embodiment, in the filter layer 3, two adjacent openings are separated by the light shielding unit 308, and in the light emitting layer 2, two adjacent light emitting units are separated by the pixel defining layer 204. Wherein the width D1 of the opening of the first opening 301 is greater than the width D2 of the first light-emitting unit 201, and thus the area of the first opening 301 is greater than the light-emitting area of the first light-emitting unit 201; similarly, the width of the opening of the first opening 301 is greater than the width of the first light emitting unit 201, and thus the area of the second opening 302 is greater than the light emitting area of the second light emitting unit 202. After the areas of the first opening 301 and the second opening 302 are enlarged, the opening area of the third opening 303 is obviously reduced. The width D3 of the opening of the third opening 303 is smaller than the width D4 of the third light emitting unit 203, and thus the area of the third opening 303 is larger than the light emitting area of the third light emitting unit 203.
When the third opening 303 is not provided with the corresponding filter material, the transmittance may be too high, and the light output rate of the third opening 303 may be too high and may greatly deviate from the light output rate between the first opening 301 and the second opening 302, thereby causing a phenomenon that the display of the display panel is greenish. When the opening area of the third opening 303 is decreased, the transmittance of the third opening 303 can be further decreased, and the transmittance deviation from the first opening 301 and the second opening 302 can be maintained to be decreased, thereby compensating for the transmittance deviation caused by the absence of the filter in the third opening 303.
In some embodiments, referring to fig. 4, a portion of the third opening 303 adjacent to the first opening 301 is filled with a first filter material having the same color as the first filter unit 304, a portion of the third opening 303 adjacent to the second opening 302 is filled with a second filter material having the same color as the second filter unit 305, and a light-transmitting unit 306 is formed between the first filter material and the second filter material. The area of the third opening 303 may be made larger than the light emitting area of the third light emitting unit 203 by setting the width D5 of the opening of the third opening 303 to be smaller than the width D6 of the third light emitting unit 203. Fig. 4 is a schematic structural diagram of the display panel in the above embodiment. In the above technical solution, similarly, in order to avoid the problem that the light transmittance is too high due to the fact that the light filter is not disposed in the third opening 303 and the light transmittance is greatly deviated from the other two openings, the light filter filled in the openings on the two sides adjacent to the third opening 303 is filled in a part of the third opening 303 in an interference filling manner, so that the light transmission area of the third opening is reduced, the light transmittance of the third opening 303 is reduced, and the effect of compensating the transmittance deviation caused by the fact that the light filter is not disposed in the third opening 303 can also be achieved. In the above embodiment, when the light shielding layer is disposed, the original disposing manner of the light shielding unit 308 may not be changed, and only the light filtering material in the opening adjacent to the third opening 203 is partially filled in the third opening 203 when disposed, and the above technical effect may be achieved without changing the original etching mask of the light shielding unit 308, which is simple and efficient to operate.
In some embodiments, the light-transmitting unit 306 is formed by filling the first organic material 401 in the third opening 303. With continued reference to fig. 2, the first organic material 401 is a material used to form the planarization layer 4. The first organic material 401 may be a resin material (such as an acryl-based resin or the like). On the one hand, the function of the filter is to protect the filter material in the filter layer 3 and to keep the performance thereof stable; on the other hand, the flatness of the upper surface of the filter layer 3 can be maintained, which facilitates the mounting of subsequent package structures or other structures. The first organic material 401 is directly filled in the third opening 303 to form the light transmitting unit 306, so that deposition of a green filter material can be omitted without changing the existing production process, and the planarization layer 4 is directly covered on the third opening 303, thereby also achieving the technical effect of reducing the transmittance. Fig. 5 is a schematic diagram illustrating the transmittance change of the light-transmitting unit 306 before and after the UV aging test in this embodiment. A3 is the transmittance test curve of the material before the light test, A4 is the transmittance test curve of the material after the light test. As can be seen from the figure, the transmittance of the light-transmitting unit 306 before and after the test did not change significantly, and the properties were stable.
In some embodiments, referring to fig. 6, the light-transmitting unit 306 is formed by filling the third opening 303 with the second organic material 402, and the transmittance of the second organic material 402 is 50% to 70% of the transmittance of the first organic material 401. As shown in fig. 6, the transparent organic material 402 different from the material of the planarization layer 4 is filled in the third opening 303, and since the transmittance of the first organic material 401 in the planarization layer 4 is high, the transmittance of the first organic material 401 filled in the third opening 303 is too high, which may result in an insignificant filtering effect, and the transmittance of the third opening 303 is greater than the transmittances of the first opening 301 and the second opening 302, the transmittance is reduced by replacing the second organic material 402 with the second organic material 402, and the transmittances are maintained to be close to the transmittances of the first filter unit 304 and the second filter unit 305, thereby reducing the deviation of the light output rate and improving the display effect.
In some embodiments, the display panel of the present application further includes a touch layer 5 disposed between the light-emitting layer 2 and the filter layer 3 to implement a touch screen control function. The display panel of the application has a touch function due to the addition of the touch layer 5, so that the requirements of a user are better met, and the specific setting mode of the structure of the touch layer 5 is similar to that of the prior art and is not repeated here.
In some embodiments, referring to fig. 7, a fourth opening 403 is formed in the planarization layer 4 and penetrates through the planarization layer 4 along the thickness direction, the fourth opening 403 is formed on the third opening 303, and the area of the fourth opening 403 is larger than the area of the third opening 303. The area of the fourth opening 403 may be larger than the area of the third opening 303 by making the width of the fourth opening 403 larger than the width of the third opening 403. And, the orthographic projection of the fourth opening 403 on the substrate 1 covers the orthographic projection of the third opening 303 on the substrate 1, and the second organic material 402 is filled in the fourth opening 403 to form the filtering compensation unit 404. As shown in fig. 7, a fourth opening 403 is disposed on the third opening 303, and a coverage of the fourth opening 403 is greater than a coverage of the third opening 303.
In some embodiments, as shown in fig. 8, a cross section of the fourth opening 403 in the thickness direction is gradually increased in width from the filter layer 3 toward the planarization layer 4, and the refractive index of the second organic material 402 is greater than the refractive index of the first organic material 401. Can set up the cross-section of fourth opening 403 into trapezoidal, the opening area of fourth opening 403 also increases gradually from base plate 1 towards light outgoing direction, such setting, can change the outgoing direction of light at second organic material 402 and first organic material 401 interface, the total reflection or refraction can take place for the wide-angle light that second organic material 402 interface department formed, this moment wide-angle light turns into small-angle light, the light-emitting efficiency that can effectively improve outgoing light promotes display panel's display effect.
In some embodiments, the modified filter material layer 307 is formed by doping scattering particles in the second organic material 402. As shown in fig. 9 and 10, scattering particles are doped in the second organic material 402. The scattering particles may be doped only in the second organic material 402 of the third opening 303, may be doped in both the third opening 303 and the fourth opening 403, or may be doped only in the second organic material 402 of the fourth opening 403. The scattering ions are doped in the second organic material 402, so that the forward scattering intensity of the incident light is greater than the backward scattering intensity, the influence of ambient light is reduced as much as possible on the premise of not influencing the light emission, and the display contrast of the display panel is improved.
In some embodiments, the scattering particles are doped with a decreasing concentration in the direction of the substrate towards the planarization layer 4. The doping concentration of the scattering particles can be adjusted according to actual conditions. The concentration of the doped scattering particles is gradually reduced, so that the scattering intensity of incident light can be effectively reduced, and the incidence of ambient light is further reduced. On the other hand, the concentration on the side close to the light-emitting layer 2 can collect emergent light as much as possible, the concentration gradient is set, the influence of the total reflection phenomenon on the interface of the concentration mutation of the scattering particles on the emergent light can be effectively avoided, and the display effect is improved.
In some embodiments, the scattering particles have a particle size of 400 to 600 nm. The nano-particles are used for absorbing light rays with the wavelength of 400-600 nanometers in the ambient light, so that the reflection of the ambient light can be reduced, and the black screen brightness of the display panel is reduced. In the embodiment of the present application, when the doped nanoparticle modified organic material is used, the scattering particles are added before the second organic material is coated, and stirring in a mechanical/electromagnetic/ultrasonic manner is required to be performed during the addition, so that the scattering particles can be uniformly distributed in the modified optical filter material layer 307 formed after modification.
In another aspect of the embodiments of the present application, there is provided a display device, as shown in fig. 11, a display device 100 of the present application includes the display panel 10 as described above. Obviously, the display device 100 in the present application can achieve the technical effects of the display panel 10 as well, and will not be described herein again.
In accordance with the embodiments of the present application as described above, these embodiments are not exhaustive and do not limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.
Claims (11)
1. A display panel, comprising:
a substrate, a first electrode and a second electrode,
the light-emitting layer is arranged on one side of the substrate and comprises a plurality of first light-emitting units, second light-emitting units and third light-emitting units which are arranged in an array;
the light-filtering part comprises a plurality of first openings, second openings and third openings which are distributed in an array manner and correspond to the first light-emitting units, the second light-emitting units and the third light-emitting units one by one, the light-filtering part comprises first light-filtering units which are arranged in the first openings and have the same color as the first light-emitting units, second light-filtering units which are arranged in the second openings and have the same color as the second light-emitting units and light-transmitting units which are arranged in the third openings, and no light-filtering material is arranged in the third openings;
and the planarization layer is formed by arranging a first organic material on the side, away from the light-emitting layer, of the filter layer, the orthographic projection of the planarization layer on the substrate covers the orthographic projection of the filter layer on the substrate, and the third opening corresponds to the green light-emitting unit in the light-emitting layer.
2. The display panel according to claim 1, wherein an area of the first opening is larger than an area of the first light-emitting unit and an orthogonal projection of the first opening on the substrate covers an orthogonal projection of the first light-emitting unit on the substrate, an area of the second opening is larger than an area of the second light-emitting unit and an orthogonal projection of the second opening on the substrate covers an orthogonal projection of the second light-emitting unit on the substrate, an area of the third opening is smaller than an area of the third light-emitting unit, and an orthogonal projection of the third light-emitting unit on the substrate covers an orthogonal projection of the light-transmitting unit on the substrate.
3. The display panel according to claim 1, wherein a side portion of the third opening adjacent to the first opening is filled with a first filter material having a same color as the first filter unit, a side portion of the third opening adjacent to the second opening is filled with a second filter material having a same color as the second filter unit, and a gap between the first filter material and the second filter material forms the light transmitting unit.
4. The display panel according to any one of claims 1 to 3, wherein the light-transmitting unit is formed by filling the first organic material in the third opening.
5. The display panel according to claim 1, wherein the light transmitting unit is formed by filling a second organic material in the third opening, and a transmittance of the second organic material is 50% to 70% of a transmittance of the first organic material.
6. The display panel according to claim 5, wherein a fourth opening penetrating through the planarization layer in a thickness direction is formed in the planarization layer, the fourth opening is formed in the third opening, an area of the fourth opening is larger than an area of the third opening, an orthographic projection of the fourth opening on the substrate covers an orthographic projection of the third opening on the substrate, and the fourth opening is filled with the second organic material to form a filtering compensation unit.
7. The display panel according to claim 6, wherein a cross section of the fourth opening in a thickness direction is gradually increased in width from the filter layer toward the planarization layer, and wherein a refractive index of the second organic material is larger than a refractive index of the first organic material.
8. The display panel according to any one of claims 5 to 7, wherein the second organic material is doped with scattering particles to form a modified filter material layer.
9. The display panel according to claim 8, wherein the scattering particles have a doping concentration that gradually decreases in a direction from the substrate toward the planarization layer.
10. The display panel according to claim 8, wherein the scattering particles have a particle size of 400 to 600 nm.
11. A display device characterized by comprising the display panel according to any one of claims 1 to 10.
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| CN202110391449.5A CN113140603B (en) | 2021-04-13 | 2021-04-13 | Display panel and display device |
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| CN202110391449.5A CN113140603B (en) | 2021-04-13 | 2021-04-13 | Display panel and display device |
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| CN113140603B true CN113140603B (en) | 2022-06-14 |
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| WO2023070542A1 (en) * | 2021-10-29 | 2023-05-04 | 京东方科技集团股份有限公司 | Display module and display device |
| CN115116331B (en) * | 2022-06-29 | 2023-07-28 | 昆山国显光电有限公司 | Supporting component and display module |
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| CN109119453B (en) * | 2018-09-25 | 2021-04-16 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN110459581B (en) * | 2019-08-26 | 2021-09-21 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110491924B (en) * | 2019-08-27 | 2022-02-01 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN111584608B (en) * | 2020-06-08 | 2022-07-22 | 京东方科技集团股份有限公司 | OLED display substrate, manufacturing method thereof, display panel and display device |
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