CN215418176U - Display panel and display device - Google Patents
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- CN215418176U CN215418176U CN202120918203.4U CN202120918203U CN215418176U CN 215418176 U CN215418176 U CN 215418176U CN 202120918203 U CN202120918203 U CN 202120918203U CN 215418176 U CN215418176 U CN 215418176U
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Abstract
According to the display panel provided by the utility model, the barrier layer is arranged in the display panel, the accommodating cavity in the barrier layer can fix the light-emitting units and the corresponding light conversion layers which are accommodated in the accommodating cavity, and meanwhile, the reflecting layer on the side wall of the accommodating cavity can reflect or refract light emitted by the side surfaces of the light-emitting units to the corresponding light conversion layers, so that the brightness of a light source is enhanced, the problem that the light emitted by the side surfaces of the light-emitting units cannot be effectively utilized is avoided, and the light efficiency utilization rate of the light-emitting units is improved.
Description
Technical Field
The present invention relates to the field of semiconductor devices, and in particular, to a display panel and a display device.
Background
At present, in the related art, the display panel realizes the full-color design through the light-emitting unit, and two piece upper and lower base plates are generally needed in the full-color design to the box, and this kind of full-color design can make the light that the light-emitting unit sent absorbed by the packaging layer, leads to the light efficiency utilization efficiency of light-emitting unit to hang down.
Therefore, how to improve the utilization efficiency of the light emitting units in the display panel is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the related art, the present application aims to provide a display panel and a display device, which aim to solve the problem of low light efficiency utilization efficiency of the light emitting units in the display panel in the related art.
A display panel, comprising: the array substrate comprises a plurality of light emitting units, wherein the light emitting units are arranged on one side of the array substrate in an array manner; the light conversion layer is arranged on a light emitting surface of one side, away from the array substrate, of the light emitting unit and corresponds to the light emitting unit one to one; the barrier layer is arranged on one side, close to the light emitting units, of the array substrate, a plurality of accommodating cavities are formed in the barrier layer, the accommodating cavities are used for accommodating the corresponding light emitting units and the light conversion layers corresponding to the light emitting units, and reflecting layers are arranged on the side walls of the accommodating cavities; the second substrate is arranged on one side, far away from the array substrate, of the barrier layer.
Above-mentioned display panel, the luminous element that the inside held and the light conversion layer that corresponds can be fixed to the chamber that holds in the barrier layer, and simultaneously, the reflection stratum on the chamber lateral wall that holds can reflect or refract each light conversion layer that corresponds with the light of each luminous element side emission, has strengthened light source luminance, has avoided the problem that the light that each luminous element side sent can't obtain effective utilization, has promoted each luminous element's light efficiency utilization ratio.
Optionally, the display panel further comprises: the packaging layer is arranged between the barrier layer and the array substrate; the light emitting unit penetrates through the packaging layer and is arranged on the array substrate.
The packaging layer in the display panel can fix the light-emitting unit on the array substrate, so that the light-emitting unit is more stably arranged.
Optionally, the height of the surface of one side of the encapsulation layer, which is far away from the array substrate, is lower than the height of the surface of one side of the light emitting unit, which is far away from the array substrate; the height of the surface of one side, far away from the array substrate, of the packaging layer is higher than that of the surface of one side, close to the array substrate, of the light-emitting unit; and the height difference between the surface of one side of the packaging layer, which is far away from the array substrate, and the surface of one side of the light-emitting unit, which is far away from the array substrate, is 0.1-5 micrometers.
The packaging layer in the display panel can prevent light emitted by the light emitting units close to the light emitting surface on one side of the array substrate from being reflected or refracted to other light emitting units, so that the problem of uneven display and enhanced display effect caused by uneven light leakage to other light emitting units is avoided.
Optionally, the surface of the blocking layer close to the second substrate is not lower than the surface of the light conversion layer close to the second substrate.
Optionally, the reflective layer is a silver reflective layer or an aluminum reflective layer.
Optionally, the light conversion layer comprises a plurality of sub light conversion layers; each sub light conversion layer includes: the LED light source comprises a red light quantum dot conversion layer, a green light quantum dot conversion layer and a scattering layer, wherein the red light quantum dot conversion layer, the green light quantum dot conversion layer and the scattering layer respectively correspond to one light emitting unit.
Optionally, the light shielding layer is disposed between the second substrate and the blocking layer, and the light shielding layer is provided with light holes corresponding to the light conversion layers one to one.
Optionally, the display panel further includes: and the filter layer is arranged at the through hole of the light shading layer.
Optionally, the filter layer includes a plurality of color resistors arranged at intervals, and the color resistors correspond to the light conversion layers one to one.
Further, the utility model also provides a display device, which comprises the display panel.
Above-mentioned display device, the luminous element that the inside held and the light conversion layer that corresponds can be fixed to the chamber that holds in the barrier layer, and simultaneously, the reflection stratum on the chamber lateral wall that holds can reflect or refract each light conversion layer that corresponds with the light of each luminous element side emission, has strengthened light source luminance, has avoided the problem that the light that each luminous element side sent can't obtain effective utilization, has promoted each luminous element's light efficiency utilization ratio.
Drawings
Fig. 1 is a schematic diagram of a basic structure of a display panel in the prior art according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a basic structure of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a basic structure of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a basic structure of another display panel according to an embodiment of the present invention;
FIG. 5-1 is a schematic diagram of a basic structure of another display panel according to an embodiment of the present invention;
fig. 5-2 is a schematic diagram of a basic structure of a further display panel according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a basic structure of a display panel according to another alternative embodiment of the present invention;
FIG. 7 is a basic diagram of an encapsulation layer according to another alternative embodiment of the present invention;
FIG. 8 is a schematic diagram of a further arrangement of an encapsulation layer according to another alternative embodiment of the present invention;
FIG. 9 is a basic schematic view of a barrier layer provided in accordance with another alternative embodiment of the present invention;
fig. 10 is a schematic diagram of a filter layer and a reflective layer according to another alternative embodiment of the utility model;
FIG. 11 is a schematic diagram of a light conversion layer arranged in accordance with another alternative embodiment of the present invention;
description of reference numerals:
the light-emitting diode comprises a 1-array substrate, a 2-light-emitting unit, a 3-light conversion layer, a 4-barrier layer, a 5-reflection layer, a 6-second substrate, a 7-packaging layer, an 8-filter layer and a 9-shading layer.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Currently, in the related art, a Display panel implements a full-color design through a Light Emitting unit 1, for example, a full-color design is implemented by adding Quantum Dots (QD) on a Light Emitting surface of a Micro Light Emitting Diode (Micro LED), as shown in fig. 1, the full-color design includes an array substrate 1 provided with a Light Emitting unit 2, wherein the Light Emitting unit 2 is a Micro LED, and a second substrate 6 in contact with a Light conversion layer 3(QD), and then a pair of boxes is implemented by connecting the array substrate 1 and the second substrate 6; in the full-color design, on one hand, because the packaging layer 7 is flush with the surface of the light-emitting unit 2, when the packaging layer 7 is made of the black glue material, light emitted from the side surface of the light-emitting unit 2 (for example, light ray S1) is absorbed by the black glue, so that the light efficiency utilization rate of the light-emitting unit 2 is reduced; on the other hand, the material of the barrier layer 4 is a light absorbing material, so that part of light (for example, light ray S2) emitted from the front view angle of the light emitting unit 2 is also absorbed by the barrier layer 4, thereby further reducing the light efficiency utilization ratio of the light emitting unit 2, and causing the overall light efficiency utilization ratio of the light emitting unit 2 to be low.
Based on this, the present application intends to provide a solution to the above technical problem, the details of which will be explained in the following embodiments.
Examples of the utility model
An embodiment of the present invention provides a display panel, as shown in fig. 2, which includes but is not limited to: the array substrate 1, a plurality of light-emitting units 2 array and set up in one side of the said array substrate 1; the light conversion layer 3 is arranged on a light emitting surface of one side, away from the array substrate 1, of the light emitting unit 2, and corresponds to the light emitting unit 2 one by one; the barrier layer 4 is arranged on one side, close to the light emitting units 2, of the array substrate 1, a plurality of accommodating cavities are formed in the barrier layer 4, the accommodating cavities are used for accommodating the corresponding light emitting units 2 and the light conversion layers 3 corresponding to the light emitting units 2, and reflecting layers 5 are arranged on the side walls of the accommodating cavities; and the second substrate 6 is arranged on one side of the barrier layer 4 far away from the array substrate 1. It should be understood that, in some implementations, the accommodating cavity in the blocking layer 4 may fix the light emitting units 2 and the corresponding light conversion layers 3 accommodated therein, and meanwhile, the reflective layer 5 on the sidewall of the accommodating cavity may reflect or refract the light emitted from the side surfaces of the light emitting units 2 to the corresponding light conversion layers 3, thereby enhancing the brightness of the light source, avoiding the problem that the light emitted from the side surfaces of the light emitting units 2 cannot be effectively utilized, and improving the light efficiency utilization rate of the light emitting units 2.
It should be understood that the surface of the blocking layer 4 facing one side of the array substrate 1 is flush with the surface of the light emitting unit 2 facing one side of the array substrate 1, or the surface of the blocking layer 4 facing one side of the array substrate 1 is lower than the surface of the light emitting unit 2 facing one side of the array substrate 1 (the surface of the blocking layer 4 facing one side of the array substrate 1 is closer to the array substrate 1 than the surface of the light emitting unit 2 facing one side of the array substrate 1), so that light emitted from the side surface of each light emitting unit 2 cannot leak to other light emitting units 2, the light is gathered more, the loss of the light is reduced, the problem of uneven light emitting caused by light leakage is avoided, uneven display is caused, the display effect is enhanced, and the light efficiency utilization rate of each light emitting unit 2 is further improved.
It should be understood that, where the array substrate 1 is a glass substrate or a Printed Circuit Board (PCB) substrate, the plurality of micro light emitting units 2 are arranged in an array on the array substrate 1, wherein the second substrate 6 includes, but is not limited to, any one of the following: transparent substrates such as glass substrates and PI substrates.
In some examples of this embodiment, as shown in fig. 3, the display panel further includes: the packaging layer 7 is arranged between the barrier layer 4 and the array substrate 1; the light emitting unit 2 is disposed on the array substrate 1 through the encapsulation layer 7, and it should be understood that when the encapsulation layer 7 is present in the display panel, a surface of the encapsulation layer 7 on a side close to the barrier layer 4 abuts a surface of the barrier layer 4 on a side close to the encapsulation layer 7. In some examples of the present embodiment, the light emitting unit 2 on the array substrate 1 can be fixed by the encapsulation layer 7, so that the light emitting unit 2 is more stably disposed. In some examples of this embodiment, the encapsulation layer 7 is a non-reflective encapsulation layer 7, for example, the encapsulation layer 7 is a black glue encapsulation layer 7, and at this time, the encapsulation layer 7 can also block light emitted by the light emitting unit 2 close to the light emitting surface on one side of the array substrate 1 from being reflected or refracted to other light emitting units 2, so as to avoid uneven light output caused by light leakage to other light emitting units 2, and thus, the problem of uneven display is solved, and the display effect is enhanced.
In some examples of the present embodiment, as shown in fig. 4, a height of a surface of the encapsulation layer 7 on a side away from the array substrate 1 is lower than a height of a surface of the light emitting unit 2 on a side away from the array substrate 1; the height of the surface of one side, away from the array substrate 1, of the packaging layer 7 is higher than that of the surface of one side, close to the array substrate 1, of the light-emitting unit 2; and the height difference between the surface of one side of the packaging layer 7, which is far away from the array substrate 1, and the surface of one side of the light-emitting unit 2, which is far away from the array substrate 1, is 0.1-5 micrometers. That is, the surface of the encapsulation layer 7 close to the barrier layer 4 is between the surface of the light emitting unit 2 close to the light conversion layer 3 and the surface of the light emitting unit 2 close to the array substrate 1; in some examples of this embodiment, the encapsulation layer 7 is disposed between the light emitting units 2, and can more stably fix the light emitting units 2 on the array substrate 1, and meanwhile, the encapsulation layer 7 is the non-reflective encapsulation layer 7, for example, when the encapsulation layer 7 is the black glue encapsulation layer 7, the encapsulation layer 7 can also be prevented from reflecting or refracting light emitted from the side where each light emitting unit 2 contacts the encapsulation layer 7 to other light emitting units 2, so that the problem of uneven display due to uneven light output caused by light leakage to other light emitting units 2 is avoided, and the display effect is enhanced.
In some examples of the present embodiment, a surface of the blocking layer 4 on a side close to the second substrate 6 is not lower than a surface of the light conversion layer 3 on a side close to the second substrate 6; for example, the surface of the barrier layer 4 close to the second substrate 6 is flush with the surface of the light conversion layer 3 close to the second substrate 6; light converted from the side surface of the light conversion layer 3 cannot leak to other conversion layers, so that light rays are gathered, the loss of the light rays is reduced, the problems of uneven light emitting and uneven display are avoided, and the display effect is enhanced; for another example, the surface of the blocking layer 4 close to the second substrate 6 is higher than the surface of the light-converting layer 3 close to the second substrate 6 (i.e. the surface of the blocking layer 4 close to the second substrate 6 is closer to the second substrate 6 than the surface of the light-converting layer 3 close to the second substrate 6); it should be understood that in some examples, the surface of the blocking layer 4 on the side close to the second substrate 6 is lower than the surface of the light conversion layer 3 on the side close to the second substrate 6.
In some examples of the present embodiment, the reflective layer 5 is a silver reflective layer 5 or an aluminum reflective layer 5; a layer of material with reflective function is deposited on the barrier layer 4 by Atomic Layer Deposition (ALD) or Liquid Chemical Deposition (CLD) to reflect and utilize light, for example, a layer of metal, such as silver Ag or aluminum Al, is deposited, and the reflective layer 5 is a silver reflective layer 5 or an aluminum reflective layer 5.
In some examples of this embodiment, the thickness of the reflective layer 5 is between 10 nm and 50nm, and the thickness of the reflective layer 5 can be adjusted up and down according to actual requirements.
It should be understood that the light conversion layer 3 is used to convert light emitted from the corresponding light emitting unit into a corresponding color, for example, red, green, and blue light; or converting the light emitted by the light emitting unit into red light, green light, blue light and yellow light. In some examples of the present embodiment, the light conversion layer 3 includes a plurality of sub light conversion layers; each sub light conversion layer includes: the LED light source comprises a red light quantum dot conversion layer, a green light quantum dot conversion layer and a scattering layer, wherein the red light quantum dot conversion layer, the green light quantum dot conversion layer and the scattering layer respectively correspond to one light emitting unit; it should be understood that the light emitting units emit blue light, wherein the red light quantum dot conversion layer is used for converting light emitted by the corresponding light emitting unit into red light, the green light quantum dot conversion layer is used for converting light emitted by the corresponding light emitting unit into green light, and the scattering layer is used for scattering the blue light emitted by the light emitting unit and then emitting the blue light;
it should be understood that the material of the quantum dot conversion layer is a quantum dot material, wherein the quantum dot material is a nano-scale semiconductor, and by applying a certain electric field or light pressure to the nano-scale semiconductor material, the nano-scale semiconductor material emits light with a specific frequency, and the frequency of the emitted light changes along with the change of the size of the semiconductor, so that the color of the emitted light can be controlled by adjusting the size of the nano-scale semiconductor.
In some examples of the present embodiment, in order to ensure the light conversion effect of the light conversion layer 3 corresponding to the light emitting units 2, and avoid the problem that the light mixing of different colors affects the light emitting effect, as shown in fig. 5-1, the display panel further includes: the light shield layer 9, the light shield layer 9 sets up second base plate 6 with between the barrier layer 5, just the light shield layer 9 be provided with the light conversion layer 3 one-to-one passes through the unthreaded hole, and then makes the light that the light conversion layer 3 sent to light shield layer 9 one side can send through the unthreaded hole, and it should be understood that the material of light shield layer 9 is opaque material, for example, black light shield layer, and then makes the light that the light conversion layer 3 converted only can send through the unthreaded hole of light shield layer 9, has avoided the light colour mixture of different colours, has promoted light-emitting display effect.
In some examples of this embodiment, the display panel further comprises: and the filter layer 8 is arranged at the through hole of the light shielding layer 9. The filter layer 8 includes a plurality of color resistors arranged at intervals, and the color resistors correspond to the light conversion layer 3 one by one, for example, the color resistors include a red filter, a green filter, and a blue filter, which correspond to the red quantum dot conversion layer, the green quantum dot conversion layer, and the scattering layer, respectively; the color resistor filters the light converted by the light conversion layer 3 again, so that only the corresponding light is transmitted, and the display effect is enhanced.
The embodiment also provides a display device, which comprises the display panel.
In order to better explain the display panel provided by the present invention, the present embodiment provides a more specific example to explain the present invention, please refer to fig. 6, and the display panel includes but is not limited to: the array substrate comprises an array substrate 1, and a plurality of light-emitting units 2 and packaging layers 7 which are arranged on one surface of the array substrate 1 in an array manner, wherein the packaging layers 7 are black glue packaging layers, and the light-emitting units 2 penetrate through the black glue packaging layers 7 and are arranged on the array substrate 1; the light conversion layer 3 is arranged on a light emitting surface of one side, away from the array substrate 1, of the light emitting unit 2, and corresponds to the light emitting unit 2 one by one; a barrier layer 4(bank), wherein the barrier layer 4 is disposed on one side of the array substrate 1 close to the light emitting units 2, a plurality of accommodating cavities are disposed on the barrier layer 4, the accommodating cavities are used for accommodating the corresponding light emitting units 2 and the light conversion layers 3 corresponding to the light emitting units 2, and a reflective layer 5 is disposed on a side wall of each accommodating cavity; the display panel further comprises a light shielding layer 9 and a filter layer 8, wherein the light shielding layer 9 is arranged between the second substrate 6 and the barrier layer 5, the light shielding layer 9 is provided with light through holes in one-to-one correspondence with the light conversion layers 3, light emitted from the light conversion layers 3 to one sides of the light shielding layer 9 can be emitted through the light through holes, the filter layer 8 is arranged at the light through holes of the light shielding layer, and the filter layer 8 is arranged between the second substrate 6 and the barrier layer 4. The filter layer 8 includes a plurality of color resistors arranged at intervals, and the color resistors correspond to the light conversion layers 3 one to one; and the second substrate 6, wherein the second substrate 6 is arranged on one side of the filter layer 8 far away from the array substrate 1.
In the display panel provided by the embodiment, the black adhesive packaging layer 7 can prevent light emitted from the bottom of the light emitting unit from being reflected or refracted to other light emitting units 2, and meanwhile, the black adhesive packaging layer 7 prevents light emitted from the side surface of each light emitting unit 2 in contact with the packaging layer 7 from being reflected or refracted to other light emitting units 2, so that the problems of uneven light emission and uneven display caused by light leakage to other light emitting units 2 are avoided, and the display effect is enhanced; meanwhile, the light emitted from the side surface and the top surface of each light-emitting unit 2 can be reflected or refracted to the corresponding light conversion layer 3 by the reflective layer 5 on the side wall of the accommodating cavity (for example, light rays S3 and S4 in fig. 6), so that the brightness of the light source is enhanced, the problem that the light emitted from the side surface of each light-emitting unit 2 cannot be effectively utilized is solved, and the light efficiency utilization rate of each light-emitting unit 2 is improved.
In some examples of the present embodiment, the height of the surface of the black glue encapsulation layer 7 on the side away from the array substrate 1 is lower than the height of the surface of the light emitting unit 2 on the side away from the array substrate 1; the height of the surface of one side, away from the array substrate 1, of the packaging layer 7 is higher than that of the surface of one side, close to the array substrate 1, of the light-emitting unit 2; and the height difference between the surface of one side of the packaging layer 7, which is far away from the array substrate 1, and the surface of one side of the light-emitting unit 2, which is far away from the array substrate 1, is 0.1-5 micrometers. That is, the surface of the encapsulation layer 7 close to the barrier layer 4 is between the surface of the light emitting unit 2 close to the light conversion layer 3 and the surface of the light emitting unit 2 close to the array substrate 1;
in some examples of the present embodiment, a surface of the blocking layer 4 on a side close to the second substrate 6 is higher than a surface of the light conversion layer 3 on a side close to the second substrate 6 (i.e., a surface of the blocking layer 4 on a side close to the second substrate 6 is closer to the second substrate 6 than a surface of the light conversion layer 3 on a side close to the second substrate 6).
In some examples of the present embodiment, the reflective layer 5 is a silver reflective layer 5 or an aluminum reflective layer 5; a layer of material with a reflection function is deposited on the barrier layer 4 by Atomic Layer Deposition (ALD) or Liquid Chemical Deposition growth (CLD) to reflect and utilize light effects, for example, a layer of metal is deposited, the deposited metal may be silver Ag or aluminum Al, the obtained reflective layer 5 is a silver reflective layer 5 or an aluminum reflective layer 5, the thickness of the reflective layer 5 is between 10 nanometers and 50 nanometers, the thickness of the reflective layer 5 can be adjusted up and down according to actual requirements, and the light conversion layer 3 is a quantum dot light conversion layer 3.
The embodiment also provides a manufacturing method of the display panel, which includes but is not limited to:
s1, hot-pressing a black glue packaging layer on the whole surface of the array substrate after the macro-rotation is completed, wherein the black glue packaging layer is higher than the surface of the light-emitting unit;
it should be understood that, the light emitted by the light emitting unit is blue light, as shown in fig. 7, the light emitting unit is firstly turned onto the array substrate, which may be a glass substrate or a PCB substrate, and then a black glue encapsulation layer is hot-pressed on the glass substrate, at this time, the height of the black glue encapsulation layer is higher than the surface of the light emitting unit;
s2, etching the black glue packaging layer;
it should be understood that the thickness of the black glue encapsulation layer after etching is made lower than the upper surface of the light emitting unit and higher than the lower surface of the light emitting unit through a plasma (plasma) etching process, as shown in fig. 8. The relative height of the black glue packaging layer and the light-emitting unit can be controlled by plasma time, so that the difference between the upper surface of the LED and the surface of the black glue packaging layer is 0-5 um;
s3, arranging a filter layer on the second substrate;
it should be understood that the second substrate may be a glass substrate, or may also be a substrate made of a transparent material such as PI and having good light transmittance; a Black Matrix (BM) is completed on the second substrate through a yellow light process in sequence, a Color Filter (CF) R/G/B is arranged on the black matrix to obtain a Filter layer, and a barrier layer bank is manufactured on the black matrix, as shown in fig. 9, wherein a containing cavity is formed in the barrier layer and used for containing the light emitting unit and the light conversion layer.
S4, manufacturing a reflecting layer;
it is to be understood that when a highly reflective metallic reflective layer of Ag, Al or the like is deposited by ALD (atomic layer deposition) to a film thickness of 50nm or less, as shown in FIG. 10; particularly, the reflective layer on the surface of the pixel opening area needs to be etched by dry etching to remove the metal on the upper surface of the CFR/CFG/CFB, so that the light after the subsequent QD excitation has higher penetration rate.
S5, manufacturing a light conversion layer;
it should be understood that the subsequent fabrication by sequentially completing the light conversion layer QDR/QDG/Scatter layers is shown in FIG. 11; particularly, the level difference between the QDR/QDG/Scatter film thickness and the Bank is larger than the level difference between the light-emitting unit on the array substrate and the black glue packaging layer, so that after the upper substrate and the lower substrate are paired, the Bank has enough height to be inserted into the black glue packaging layer, and light leakage is ensured. The light conversion layer can be realized through a yellow light process or an ink-jet printing process, and the QD layer and the Bank layer have a step difference, so that the ink-jet printing process can more stably control the film thickness and ensure the uniformity of the step difference.
And S6, pairing the groups.
It should be understood that, after the array substrate and the second substrate are paired, the Bank layer is inserted between the holes of the light-emitting units, and light emitted laterally by the light-emitting units is emitted by the reflective metal layer on the surface of the Bank layer to excite the QD quantum dots, so that the light efficiency utilization rate of the LED is improved, and the brightness of the whole product is improved.
The utility model is not limited to the above examples, but may be modified or varied by a person skilled in the art in light of the above description, all such modifications and variations being within the scope of the utility model as defined by the appended claims.
Claims (10)
1. A display panel, comprising:
an array substrate is provided with a plurality of first electrodes,
a plurality of light emitting cells arranged at one side of the array substrate in an array manner;
the light conversion layer is arranged on a light emitting surface of one side, away from the array substrate, of the light emitting unit and corresponds to the light emitting unit one to one;
the barrier layer is arranged on one side, close to the light emitting units, of the array substrate, a plurality of accommodating cavities are formed in the barrier layer, the accommodating cavities are used for accommodating the corresponding light emitting units and the light conversion layers corresponding to the light emitting units, and reflecting layers are arranged on the side walls of the accommodating cavities;
the second substrate is arranged on one side, far away from the array substrate, of the barrier layer.
2. The display panel of claim 1, wherein the display panel further comprises:
the packaging layer is arranged between the barrier layer and the array substrate;
the light emitting unit penetrates through the packaging layer and is arranged on the array substrate.
3. The display panel of claim 2,
the height of the surface of one side, away from the array substrate, of the packaging layer is lower than the height of the surface of one side, away from the array substrate, of the light emitting unit; the height of the surface of one side, far away from the array substrate, of the packaging layer is higher than that of the surface of one side, close to the array substrate, of the light-emitting unit;
and the height difference between the surface of one side of the packaging layer, which is far away from the array substrate, and the surface of one side of the light-emitting unit, which is far away from the array substrate, is 0.1-5 micrometers.
4. The display panel according to any one of claims 1 to 3, wherein a surface of the barrier layer on a side close to the second substrate is not lower than a surface of the light conversion layer on a side close to the second substrate.
5. The display panel according to claim 4, wherein the reflective layer is a silver reflective layer or an aluminum reflective layer.
6. The display panel of claim 4, wherein the light conversion layer comprises a plurality of sub light conversion layers; each of the sub light conversion layers includes: the LED light source comprises a red light quantum dot conversion layer, a green light quantum dot conversion layer and a scattering layer, wherein the red light quantum dot conversion layer, the green light quantum dot conversion layer and the scattering layer respectively correspond to one light emitting unit.
7. The display panel according to any one of claims 5 to 6, wherein the display panel further comprises: and the light shielding layer is arranged between the second substrate and the barrier layer and is provided with light through holes in one-to-one correspondence with the light conversion layers.
8. The display panel of claim 7, wherein the display panel further comprises: and the filter layer is arranged at the through hole of the light shading layer.
9. The display panel according to claim 8, wherein the filter layer includes a plurality of color resists arranged at intervals, and the color resists correspond to the light conversion layers one to one.
10. A display device characterized in that it comprises a display panel according to any one of claims 1 to 9.
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| CN202120918203.4U CN215418176U (en) | 2021-04-29 | 2021-04-29 | Display panel and display device |
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| CN202120918203.4U CN215418176U (en) | 2021-04-29 | 2021-04-29 | Display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447188A (en) * | 2022-01-18 | 2022-05-06 | Tcl华星光电技术有限公司 | Display panel and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447188A (en) * | 2022-01-18 | 2022-05-06 | Tcl华星光电技术有限公司 | Display panel and display device |
| CN114447188B (en) * | 2022-01-18 | 2024-03-08 | Tcl华星光电技术有限公司 | Display panel and display device |
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