CN109120753B - Display panel and display device - Google Patents
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- CN109120753B CN109120753B CN201810955364.3A CN201810955364A CN109120753B CN 109120753 B CN109120753 B CN 109120753B CN 201810955364 A CN201810955364 A CN 201810955364A CN 109120753 B CN109120753 B CN 109120753B
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- 238000000034 method Methods 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 18
- 238000005538 encapsulation Methods 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims 2
- 238000003384 imaging method Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
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- 230000002829 reductive effect Effects 0.000 description 3
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- 230000000670 limiting effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
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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
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- 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
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to avoid interference of light rays emitted by a light-emitting device on imaging of a camera assembly and improve the imaging quality of the camera assembly. The display panel comprises a first substrate and a second substrate which are oppositely arranged, wherein a display area is arranged in an area between the first substrate and the second substrate and comprises a light transmitting area, a light blocking area surrounding the light transmitting area and a picture display area surrounding the light blocking area; wherein, the light transmission region department corresponds and is provided with camera subassembly, is provided with first structure of being in the light of being in the region of being in the light. The display panel is used for realizing picture display.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the continuous development of display technology, display panels with high screen ratio are more and more widely used. In order to avoid the camera assembly occupying space in the frame area and further improve the screen occupation ratio, a blind hole area is usually arranged in the display area, the display panel is transparent but not cut in the blind hole area, and then the camera assembly is arranged corresponding to the blind hole area.
However, with the arrangement, light emitted by the light emitting device in the display panel obliquely enters the blind hole area, and light leakage occurs, so that when the camera assembly performs dark-state imaging, the camera assembly is affected by the light leakage, and the imaging quality is affected due to insufficient dark of the formed image.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, so as to prevent light emitted by a light emitting device from interfering with an imaging of a camera assembly, and improve the imaging quality of the camera assembly.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes a first substrate and a second substrate that are disposed opposite to each other, a region between the first substrate and the second substrate includes a display region, and the display region includes a light-transmitting region, a light-blocking region surrounding the light-transmitting region, and a screen display region surrounding the light-blocking region;
the camera assembly is correspondingly arranged at the light transmitting area, and a first light blocking structure is arranged in the light blocking area.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel as described above.
One of the above technical solutions has the following beneficial effects:
in the technical solution provided by the embodiment of the present invention, the light blocking area surrounding the light transmitting area is disposed in the display area, so that when a part of light emitted by the light emitting layer enters the light transmitting area, the light blocking area is blocked by the first light blocking structure in the light blocking area, and the part of light cannot be continuously transmitted to the light transmitting area and is not received by the camera assembly. Therefore, by adopting the technical scheme, light rays emitted by the light emitting layer can be prevented from being transmitted to the camera assembly, so that the interference of the light rays on the imaging of the camera assembly is avoided, and the imaging quality of the camera assembly is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A1-A2 of FIG. 1;
fig. 3 is a schematic structural diagram of a first light blocking structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first light blocking structure provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second light blocking structure according to an embodiment of the present invention;
FIG. 6 is another cross-sectional view taken along the line A1-A2 of FIG. 1;
FIG. 7 is a further cross-sectional view taken along line A1-A2 of FIG. 1;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first and second may be used to describe light blocking structures in embodiments of the present invention, these light blocking structures should not be limited to these terms. These terms are only used to distinguish the light blocking structures from each other. For example, the first light blocking structure may also be referred to as a second light blocking structure, and similarly, the second light blocking structure may also be referred to as a first light blocking structure without departing from the scope of the embodiments of the present invention.
An embodiment of the present invention provides a display panel, as shown in fig. 1 and fig. 2, fig. 1 is a top view of the display panel provided in the embodiment of the present invention, fig. 2 is a cross-sectional view of fig. 1 along a direction a1-a2, the display panel includes a first substrate 1 and a second substrate 2 which are oppositely disposed, an area between the first substrate 1 and the second substrate 2 includes a display area 3, and the display area 3 includes a light-transmitting area 4, a light-blocking area 5 surrounding the light-transmitting area 4, and a picture display area 6 surrounding the light-blocking area 5. The camera assembly 7 is correspondingly arranged at the light transmitting area 4, and the first light blocking structure 8 is arranged in the light blocking area 5.
It is understood that, referring to fig. 2 again, a circuit device layer 9 and a light emitting device layer 10 are sequentially disposed in the picture display area 6, wherein the circuit device layer 9 is provided with a thin film transistor for driving the light emitting device layer 10 to emit light, and the light emitting device layer 10 includes an anode 11, a light emitting layer 12 and a cathode 13. When the light emitting layer 12 of the light emitting device layer 10 is driven by the tft to emit light, since the light emitted from the light emitting layer 12 is emitted in all directions, a part of the light emitted from the light emitting layer 12 is obliquely incident to the light transmitting region 4.
In the display panel provided in the embodiment of the invention, the light-blocking region 5 surrounding the light-transmitting region 4 is disposed in the display region 3, so that when part of the light emitted by the light-emitting layer 12 enters the light-transmitting region 4, the part of the light is blocked by the first light-blocking structure 8 in the light-blocking region 5, and cannot be transmitted to the light-transmitting region 4, and thus cannot be received by the camera assembly 7. Therefore, with the display panel, light emitted by the light-emitting layer 12 can be prevented from being transmitted to the camera assembly 7, so that interference of the light on imaging of the camera assembly 7 is avoided, and imaging quality of the camera assembly 7 is improved.
Alternatively, the material forming the first light blocking structure 8 may be an opaque material, such as an ink material. The first light blocking structure 8 is directly formed by using a light-tight material, so that the first light blocking structure 8 has a good light blocking characteristic, the forming process of the first light blocking structure 8 can be simplified, and the manufacturing process is simplified.
Note that, when the first light blocking structure 8 is formed of an opaque material, the first light blocking structure 8 may be formed after the circuit device layer 9 and the light emitting device layer 10 are formed.
Alternatively, as shown in fig. 3, fig. 3 is a schematic structural diagram of a first light blocking structure according to an embodiment of the present invention, where the first light blocking structure 8 includes a retaining wall 14 and at least one light blocking layer 15, where the light blocking layer 15 at least covers a surface of the retaining wall 14 facing the image display area 6, and the light blocking layer 15 has a light blocking property, and may be formed by a metal material or other opaque materials.
When the first light-blocking structure 8 includes the blocking wall 14 and the light-blocking layer 15, since the light-blocking layer 15 covers the surface of the blocking wall 14 facing the image display region 6, the light-blocking layer 15 can block the light emitted by the light-emitting layer 12, and at this time, the blocking wall 14 can be formed by a light-transmitting material, a light-proof material or a semi-light-transmitting material, so that the selection range of the forming materials is enlarged.
Further, as shown in fig. 4, fig. 4 is a schematic structural diagram of the first light blocking structure according to the embodiment of the present invention, the image display region 6 is provided with a circuit device layer 9, one side of the circuit device layer 9 facing the light emitting direction is provided with a planarization layer 16, and the retaining wall 14 and the planarization layer 16 can be formed by using the same material and the same process.
It should be noted that although the retaining walls 14 and the planarization layer 16 may be formed by the same material and the same process, the retaining walls 14 penetrate between the first substrate 1 and the second substrate 2 and have a larger thickness, and the planarization layer 16 is laid on the circuit device layer 9 and has a smaller thickness than the retaining walls 14.
The retaining wall 14 and the planarization layer 16 are formed by the same material and the same process, when the planarization layer 16 is formed, the retaining wall 14 can be formed in the light blocking region 5 by the same composition process, and the retaining wall 14 does not need to be formed by an additional composition process, so that the manufacturing process is simplified, and the process complexity is reduced.
Referring to fig. 4 again, the first light blocking structure 8 includes a first light blocking layer 17, the image display area 6 is provided with a light emitting device layer 10, the light emitting device layer 10 includes an anode 11, a light emitting layer 12 and a cathode 13 sequentially arranged along the light emitting direction, and the first light blocking layer 17 and the anode 11 may be formed by the same material and the same process.
The first light blocking layer 17 and the anode 11 are formed by the same material and the same process, and after the planarization layer 16 is formed, a metal material may be sputtered on the surface of the planarization layer 16 and the surface of the retaining wall 14 at the same time, and the anode 11 is formed on the planarization layer 16 by an etching process, and the first light blocking layer 17 is formed on the retaining wall 14. By adopting the arrangement mode, on one hand, the metal material is sputtered on the surface of the retaining wall 14, and based on the characteristic of low light transmittance of the metal material, the light emitted by the light emitting layer 12 can be shielded, so that the light is prevented from being emitted into the light transmitting area 4; on the other hand, the first light blocking layer 17 is formed without adopting an additional composition process, so that the manufacturing process is simplified, and the process complexity is reduced.
Further, the first light-blocking structure 8 may further include a second light-blocking layer 18, and in order to simplify the manufacturing process and reduce the process complexity, the second light-blocking layer 18 and the cathode 13 may be formed by using the same material and the same process.
In order to ensure that light emitted from the light-emitting layer 12 can be emitted through the cathode 13, a material having a high light transmittance is often used as a material for forming the cathode 13, but the material can shield light to a certain extent in a small amount. Therefore, a second light-blocking layer 18 made of the same material as that of the cathode 13 is further disposed outside the first light-blocking layer 17, which still further blocks light.
Alternatively, referring to fig. 2 again, the light blocking region 5 includes an inner edge 19 close to the light transmitting region 4 and an outer edge 20 close to the picture display region 6, and the distance between the inner edge 19 and the outer edge 20 is L. In order to avoid the problem that the width of the light blocking region 5 is too small to avoid the poor light blocking effect caused by the thin thickness of the first light blocking structure 8, the minimum value of L may be set to 4 μm. Further, since the light blocking region 5 cannot emit light and normal screen display cannot be performed, the width of the light blocking region 5 is not necessarily large, and if the width of the light blocking region 5 is too wide, a relatively clear black region appears in the light blocking region 5 during screen display, and the display quality is degraded, and therefore, the maximum value of L may be set to 5.5 μm. Namely, L is more than or equal to 4 mu m and less than or equal to 5.5 mu m.
In addition, since the anode 11 in the light emitting device layer 10 is a metal layer with a small thickness, the anode 11 still has a low light transmittance, and when the light emitting layer 12 emits light, a part of the light is still emitted through the anode 11 toward the second substrate 2. At this time, light emitted downward from the light emitting layer 12 near the light transmission region 4 may still enter the light transmission region 4, which may adversely affect the imaging of the camera module 7. Based on this, in order to prevent the light emitted downward from the light emitting layer 12 from entering the light transmitting region 4, as shown in fig. 5, fig. 5 is a schematic structural diagram of a second light blocking structure provided in the embodiment of the present invention, a second light blocking structure 21 may be further disposed on a side of the second substrate 2 opposite to the first substrate 1, the second light blocking structure 21 is close to the light transmitting region 4, and there is no overlap between the second light blocking structure 21 and the light transmitting region 4.
Optionally, in order to simplify the formation process of the second light blocking structure 21, the second light blocking structure 21 may be a sticky light blocking layer and is directly attached to the second substrate 2, and a composition process such as evaporation or sputtering is not required. Specifically, the second light blocking structure 21 may be a light blocking tape.
As shown in fig. 6, fig. 6 is another cross-sectional view taken along a direction a1-a2 in fig. 1, when the display panel is a flexible display panel, in order to realize encapsulation of the circuit device layer 9 and the light-emitting device layer 10 in the picture display area 6 and prevent external water oxygen from entering into the light-emitting layer 12 of the light-emitting device layer 10, the picture display area 6 is provided with an encapsulation layer 22 for blocking water oxygen. In order to further block water and oxygen in the transparent region from permeating into the light emitting layer 12 through the side surface of the encapsulation layer 22, the display panel further includes a water and oxygen blocking structure 23, and the water and oxygen blocking structure 23 is located on the side of the light transmitting region 4 facing the light blocking region 5, that is, on the side of the light transmitting region 4 close to the light blocking region 5.
Alternatively, in order to tightly encapsulate the film structure of the picture display region 6, referring to fig. 6 again, the encapsulation layer 22 may include a plurality of overlapped organic encapsulation layers 24 and inorganic encapsulation layers 25, and correspondingly, the water-oxygen barrier structure 23 may include at least one first barrier portion 26 and at least one second barrier portion 27, wherein the first barrier portion 26 is located on one side of the organic encapsulation layer 24 close to the light-transmitting region 4, and the second barrier portion 27 is located on one side of the inorganic encapsulation layer 25 close to the light-transmitting region 4. Through set up first separation portion 26 in one side at organic encapsulation layer 24, can separate the water oxygen of transparent region department and permeate into luminescent layer 12 through the side of organic encapsulation layer 24, and in the same way, through set up second separation portion 27 in one side at inorganic encapsulation layer 25, can separate the water oxygen of transparent region department and permeate into luminescent layer 12 through the side of organic encapsulation layer 24 to the membranous layer structure of picture display region 6 has further been avoided receiving the erosion of water oxygen, has reduced the risk that the device became invalid.
Further, referring to fig. 6 again, the water-oxygen barrier structure 23 may further include a third barrier portion 28, and the third barrier portion 28 is located between the light blocking region 5 and the light transmitting region 4. By further disposing a third barrier 28 between the light blocking region 5 and the light transmitting region 4, the function of blocking water and oxygen can be further achieved.
Alternatively, as shown in fig. 7, fig. 7 is a further cross-sectional view taken along a1-a2 in fig. 1, and a transparent filler 29 may be further disposed in the light-transmitting region 4. With this arrangement, on the one hand, based on the transparent property of the transparent filler 29, the transparent filler 29 does not shield the camera assembly 7, so that normal imaging is not affected; on the other hand, if not set up membranous layer structure in the light transmission region 4, when display panel takes place to drop, display panel will appear the uneven condition of atress in picture display region 6 and light transmission region 4 department, lead to first base plate 1 and/or second base plate 2 to correspond the position in light transmission region 4 department and easily take place to damage, and through set up transparent filler 29 in light transmission region 4, can improve the atress homogeneity in each region of display panel to improve display panel's anti falling nature.
Specifically, the transparent filler 29 may be formed of a transparent resin material.
As shown in fig. 8, fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 8 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The display device provided by the embodiment of the invention comprises the display panel, so that the light rays emitted by the light emitting layer can be prevented from being transmitted into the camera assembly by adopting the display device, the interference of the light rays on the imaging of the camera assembly is avoided, and the imaging quality of the camera assembly is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A display panel is characterized by comprising a first substrate and a second substrate which are oppositely arranged, wherein the area between the first substrate and the second substrate comprises a display area, and the display area comprises a light transmitting area, a light blocking area surrounding the light transmitting area and a picture display area surrounding the light blocking area;
the camera assembly is correspondingly arranged at the light transmitting area, and a first light blocking structure is arranged in the light blocking area;
the first light blocking structure comprises a retaining wall and at least one light blocking layer, wherein the light blocking layer at least covers the surface of the retaining wall facing the picture display area;
the picture display area is provided with a circuit device layer, a planarization layer and a light-emitting device layer along the light-emitting direction, wherein the light-emitting device layer comprises an anode, a light-emitting layer and a cathode which are sequentially arranged along the light-emitting direction;
the retaining wall and the planarization layer are formed by the same material and the same process, the first light blocking structure comprises a first light blocking layer, and the first light blocking layer and the anode are formed by the same material and the same process.
2. The display panel according to claim 1, wherein the first light-blocking structure further comprises a second light-blocking layer, and wherein the second light-blocking layer and the cathode are formed using the same material and the same process.
3. The display panel according to claim 1, wherein the light blocking region includes an inner edge near the light transmitting region and an outer edge near the screen display region, and a distance between the inner edge and the outer edge is L, and L is 4 μm and L is 5.5 μm.
4. The display panel according to claim 1, wherein a side of the second substrate facing away from the first substrate is provided with a second light blocking structure, the second light blocking structure is close to the light transmitting area, and there is no overlap between the second light blocking structure and the light transmitting area.
5. The display panel according to claim 4, wherein the second light-blocking structure is a light-blocking tape.
6. The display panel according to claim 1, wherein the display panel is a flexible display panel, and the picture display region is provided with an encapsulation layer;
the display panel further comprises a water and oxygen barrier structure, and the water and oxygen barrier structure is positioned on one side, facing the light blocking area, of the light transmission area.
7. The display panel of claim 6, wherein the encapsulation layer comprises a plurality of overlapping organic and inorganic encapsulation layers;
the water and oxygen barrier structure comprises at least one first barrier portion and at least one second barrier portion, wherein the first barrier portion is located on one side, close to the light transmission area, of the organic packaging layer, and the second barrier portion is located on one side, close to the light transmission area, of the inorganic packaging layer.
8. The display panel according to claim 7, wherein the water-oxygen barrier structure further comprises a third barrier portion between the light blocking region and the light transmitting region.
9. The display panel according to claim 1, wherein a transparent filler is provided in the light-transmitting region.
10. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955364.3A CN109120753B (en) | 2018-08-21 | 2018-08-21 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955364.3A CN109120753B (en) | 2018-08-21 | 2018-08-21 | Display panel and display device |
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| CN109120753A CN109120753A (en) | 2019-01-01 |
| CN109120753B true CN109120753B (en) | 2021-01-26 |
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| TWI708222B (en) * | 2019-02-18 | 2020-10-21 | 友達光電股份有限公司 | Display panel |
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| CN109979979B (en) * | 2019-03-28 | 2020-09-08 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and manufacturing method thereof |
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