CN112185993A - Display device, display panel and manufacturing method thereof - Google Patents

Display device, display panel and manufacturing method thereof Download PDF

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Publication number
CN112185993A
CN112185993A CN201910597899.2A CN201910597899A CN112185993A CN 112185993 A CN112185993 A CN 112185993A CN 201910597899 A CN201910597899 A CN 201910597899A CN 112185993 A CN112185993 A CN 112185993A
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light
area
display
layer
region
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林信志
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EverDisplay Optronics Shanghai Co Ltd
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EverDisplay Optronics Shanghai Co Ltd
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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
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • 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
    • H10K59/1201—Manufacture or treatment
    • 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
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides a display device, a display panel and a manufacturing method thereof, wherein the display panel comprises: a first display area and a second display area, a periphery of the second display area being surrounded by the first display area; the second display area comprises a plurality of display units, each display unit comprises a light emitting area and a light transmitting area, the light emitting area is provided with a first color light area, a second color light area and a third color light area, and the light transmitting area can be penetrated by light and the light can be transmitted out of the display panel; the area ratio of the light-transmitting area in each display unit is more than 50%. On the premise of realizing full-screen display of the display panel, light can penetrate through a local area of the display panel so as to facilitate a camera module of the display device to obtain an external image.

Description

Display device, display panel and manufacturing method thereof
Technical Field
The invention relates to the technical field of display, in particular to a display device, a display panel and a manufacturing method of the display panel.
Background
An Active-matrix organic light emitting diode panel (Active-matrix organic light emitting diode panel) (AMOL 1ED) is called AMOL 1ic L1 weight emittiN1g diode. The AMOL1ED has the characteristics of high image quality, high contrast and high color saturation, and will gradually replace the conventional LTPS L1CD, becoming the mainstream collocation of the new generation display device. Taking a mobile phone as an example, in recent years, a display screen of the mobile phone is developed towards the appearance trend of a full-screen with a high screen occupation ratio and a narrow frame. In order to reduce the screen space occupied by the front camera, related front camera solutions such as a groove screen (N1otch), a water droplet screen, a punching screen, a sliding cover and a lifting lens are successively released in the market. The groove screen and the punching screen greatly reduce the space required by shooting, the display area of the screen is the upper limit when the occupation ratio reaches 92-95%, but the shooting area cannot be displayed, so that the defects of partial picture deletion and the like exist in a full-screen display picture. The sliding cover screen arranges the camera on the mobile phone sliding middle frame, and although the problem of partial picture deletion of full screen display can be solved, the mobile phone is thick, heavy, easy to go into dust, poor in water resistance, easy to damage a mechanical structure and poor in consumer experience. The lifting camera shooting scheme utilizes a lifting mechanism to drive a camera to pop up and take in, and can also solve the problem of partial picture loss of full-screen display, but the mechanism is complex, the cost is high, and the damage rate is high.
In summary, the display panel known in the prior art has a defect that a partial screen is missing in a full-screen display screen.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a display device, a display panel and a manufacturing method thereof, wherein on the premise of realizing full-screen display of the display panel, light can penetrate through a local area of the display panel, so that a camera module of the display device can conveniently obtain an external image.
According to an aspect of the present invention, there is provided a display panel including:
a first display area;
a second display area, a periphery of the second display area being surrounded by the first display area;
the second display area comprises a plurality of display units, each display unit comprises a light emitting area and a light transmitting area, the light emitting area is provided with a first color light area, a second color light area and a third color light area, and the light transmitting area can be penetrated by light and the light can be transmitted out of the display panel; the area ratio of the light-transmitting area in each display unit is more than 50%.
In an embodiment of the invention, the display unit is polygonal, and the first color light area, the second color light area, and the third color light area of each light-emitting area are collectively disposed at one corner of the display unit where the light-emitting area is located.
In an embodiment of the invention, the first color light region, the second color light region and the third color light region of each light emitting region are collectively disposed along a same side of the display unit where the light emitting region is located, so that the light transmitting region is formed at a side of the light emitting region.
In an embodiment of the invention, the display unit is polygonal, and the first color light area, the second color light area and the third color light area of each light-emitting area are dispersedly disposed at different corners of the display unit where the light-emitting area is located, so that the light-transmitting area extends from the center of the display unit to each side of the display unit.
In an embodiment of the invention, the first color light area, the second color light area, and the third color light area of each light emitting area are collectively disposed at a center of the display unit where the light emitting area is located, so that the light transmitting area surrounds a periphery of the light emitting area.
In one embodiment of the present invention, the display panel includes:
the packaging structure comprises a substrate and a packaging layer, wherein the substrate and the packaging layer are arranged oppositely;
the pixel circuit layer and the organic light-emitting element layer are formed between the substrate and the packaging layer and are positioned in the light-emitting areas of the first display area and the second display area; and
and the optical adhesive layer is formed between the substrate and the packaging layer and is positioned in the light transmitting area of the second display area.
In an embodiment of the invention, the display panel further includes a support layer, the support layer is located between the substrate and the encapsulation layer, and a projection of the support layer on the substrate is located between the light emitting area and the light transmitting area.
In an embodiment of the present invention, the second display region is formed by a plurality of display units arranged in a row direction and a column direction to form a pixel array, and the pixel array and each of the display units are rectangular; the display units are divided into a first display unit, a second display unit and a third display unit; the first display units are arranged in four first display units at four corners of the pixel array, and the first color light area, the second color light area and the third color light area of the first display units are intensively arranged according to the same direction of the corners of the first display units in the pixel array; in the plurality of second display units positioned between the two first display units on the same side of the pixel array, each second display unit is intensively provided with a first color light area, a second color light area and a third color light area of the second display unit according to the same side of the second display unit on the side where the second display unit is positioned in the pixel array; in a plurality of rectangular third display units in the pixel array except the first display unit and the second display unit, the first color light region, the second color light region and the third color light region of each third display unit are dispersedly arranged at different corners of the third display unit or the first color light region, the second color light region and the third color light region of each third display unit are intensively arranged at the center of the third display unit.
According to another aspect of the present invention, there is provided a method of manufacturing a display panel, the method including:
providing a substrate;
forming a pixel circuit layer on the substrate, wherein the pixel circuit layer comprises a plurality of first openings, and a part of the substrate is exposed through the first openings;
forming a patterned pixel definition layer over the pixel circuit layer, the pixel definition layer including a plurality of second openings;
forming an organic light emitting element layer covering the second opening on the pixel defining layer;
removing the organic light-emitting element layer covering the second opening by a laser etching process to form a light-transmitting area for light to penetrate through;
coating optical glue on the light-transmitting area to form an optical glue layer; and
and forming an encapsulation layer on one side of the organic light-emitting element layer and the optical adhesive layer, which faces away from the substrate.
The invention also provides another manufacturing method of the display panel, which comprises the following steps:
providing a substrate;
forming a pixel circuit layer on the substrate, wherein the pixel circuit layer comprises a plurality of first openings, and a part of the substrate is exposed through the first openings;
forming a patterned pixel defining layer above the pixel circuit layer, wherein the pixel defining layer comprises a plurality of second openings and a groove structure, and each second opening corresponds to one first opening;
forming a light emitting layer in the groove structure;
forming an electron transport layer over the light emitting layer, the electron transport layer covering the second opening;
forming a patterned light-transmitting region defining layer above the electron transport layer, wherein the light-transmitting region defining layer defines a light-transmitting region through which light can pass according to the second opening;
forming a cathode layer over the electron transport layer and spaced apart from the light transmissive region defining layer; and
and forming an encapsulation layer above the cathode layer and the light-transmitting region defining layer.
According to still another aspect of the present invention, there is provided a display device including:
a camera module; and
in the display panel, the second display area is disposed corresponding to the camera module, so that light enters the camera module through the light-transmitting area of the second display area.
Compared with the prior art, the invention has the advantages that on the premise of realizing the full-screen display of the display panel, light can penetrate through the local area of the display panel, so that the camera module of the display device can conveniently obtain an external image. Specifically, the display panel of the present invention includes a first display region and a second display region, the periphery of the second display region being surrounded by the first display region; the second display area comprises a plurality of display units, each display unit comprises a light emitting area and a light transmitting area, when the area ratio of the light transmitting area in each display unit is more than 50%, the second display area is in a local transparent display state, the second display area can display and transmit light, and a camera module of the display device can conveniently obtain an external image.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a schematic diagram of a pixel distribution of a first display region of a display panel according to the present invention.
Fig. 2 is a schematic diagram illustrating a pixel distribution of a display unit in the second display region according to the first embodiment of the present invention.
Fig. 3 illustrates a partial cross-sectional view of a second display region of a display panel in an embodiment of the invention.
Fig. 4 shows a partial cross-sectional view of a second display region of a display panel in another embodiment of the present invention.
FIG. 5 is a graph showing the relationship between light with different wavelengths and the light transmittance of a small molecule evaporation material.
Fig. 6 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to the second embodiment of the present invention.
Fig. 7 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to the third embodiment of the present invention.
Fig. 8 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to a fourth embodiment of the present invention.
Fig. 9 is a schematic diagram showing a pixel distribution of the second display region of the display panel according to the fifth embodiment of the present invention. And
fig. 10 is a schematic diagram showing a pixel distribution of the second display region of the display panel according to the sixth embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments 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, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the invention.
The drawings of the present invention are only for illustrating the relative positional relationship, and the dimensions of some parts are exaggerated in the drawing for easy understanding, and the dimensions in the drawings do not represent the proportional relationship of the actual dimensions.
Example 1
Fig. 1 shows a schematic diagram of a pixel distribution of a first display region of a display panel according to the present invention. Fig. 2 is a schematic diagram illustrating a pixel distribution of a display unit in the second display region according to the first embodiment of the present invention. Fig. 3 illustrates a partial cross-sectional view of a second display region of a display panel in an embodiment of the invention. Fig. 4 shows a partial cross-sectional view of a second display region of a display panel in another embodiment of the present invention. And FIG. 5 is a diagram illustrating the relationship between light with different wavelengths and the light transmittance of the small molecule evaporation material. According to an aspect of the present invention, there is provided a display panel, as shown in fig. 1 and 2, including: a first display area 100 and a second display area, the periphery of the second display area being surrounded by the first display area 100 (not shown in the figure); the second display region includes a plurality of display units, the display unit 210 includes a light-emitting region 211 (corresponding to the region L1 in fig. 3 and the region L2 in fig. 4) and a light-transmitting region 212 (corresponding to the region N1 in fig. 4 and the region N2 in fig. 4), the light-emitting region 211 is configured with a first color region R, a second color region G and a third color region B, and the light-transmitting region 212 is configured to allow light to pass therethrough and transmit the light out of the display panel; the area ratio of the light-transmitting region 212 in each display unit 210 is greater than 50%.
Table 1:
area ratio of light-transmitting region 50％ 60％ 70％ 80％ 90％
Light transmittance 42％ 46.3％ 50.3％ 56.3％ 66.2％
Table 1 shows a corresponding relationship between different area ratios of the light-transmitting regions 212 in each of the display units 210 and the light transmittance of the second display region. As can be seen from table 1, when the area ratio of the light-transmitting area 212 in each display unit 210 is greater than 50%, the second display area is in a partially transparent display state, and the second display area can display and transmit light, so that the camera module of the display device can obtain an external image.
In this embodiment, the display unit 210 is in a polygonal shape, and the first color light region R, the second color light region G, and the third color light region B of each light emitting region 211 are collectively disposed at one corner of the display unit 210 where the light emitting region 211 is located. At this time, the transparent regions 212 of the display unit 210 are concentrated, which is beneficial to simplifying the forming process thereof and the camera module to obtain the external image.
Further, as shown in fig. 3, the display panel includes: a substrate 21, an encapsulation layer 32, a pixel circuit layer 23, an organic light emitting element layer, and an optical glue layer 33. The substrate 21 is arranged opposite to the packaging layer 32; the pixel circuit layer 23 is electrically connected to the organic light emitting device layer. The pixel circuit layer 23 and the organic light emitting device layer are formed between the substrate 21 and the encapsulation layer 32, and the pixel circuit layer 23 and the organic light emitting device layer are located in the light emitting regions 211 of the first display region 100 and the second display region 210; the optical adhesive layer 33 is formed between the substrate 21 and the encapsulation layer 32 and located in the light-transmitting area 212 of the second display area 210. Further, an insulating layer 22 is provided between the pixel circuit layer 23 and the organic light emitting element layer. The organic light emitting element layer may include an anode layer 25, a hole injection layer 27, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, a cathode layer 31, and the like. The light emitting layers can be divided into a red light emitting layer 28 (corresponding to the first color region R), a green light emitting layer 29 (corresponding to the second color region G), and a blue light emitting layer 30 (corresponding to the third color region B), and may also include a white light emitting layer (not shown).
In this embodiment, the encapsulation layer 32 is a glass cover plate, which is beneficial to increasing the wear resistance and the service life of the display panel. Further, the display panel may further include a support layer 34 as shown in fig. 3, where the support layer 34 is located between the substrate 21 and the encapsulation layer 32, and a projection of the support layer 34 on the substrate 21 is located between the light emitting region L1 and the light transmitting region N1. The support layer 34 may provide support for the encapsulation layer 32, reducing the risk of encapsulation layer cracking.
The present invention includes a first display area 100 and a second display area, the periphery of which is surrounded by the first display area; the second display area includes a plurality of display units 210, the display units 210 include a light emitting area 211 and a light transmitting area 212, and when the area ratio of the light transmitting area 212 in each display unit 210 is greater than 50%, the second display area is in a partially transparent display state, and the second display area can display and transmit light, so that the camera module of the display device can obtain an external image.
As shown in fig. 4, in other embodiments of the present invention, the encapsulation layer 32 may also be a thin film encapsulation layer, and the thin film encapsulation layer may be an inorganic thin film, an organic thin film, or an organic-inorganic hybrid thin film, so as to have a better water and oxygen blocking effect, and further improve the service life of the display panel. The film packaging layer covers the surfaces of the cathode layer 31 of the light emitting region L2 and the substrate 21 of the light transmitting region N2, and the bending resistance of the display panel is improved.
According to another aspect of the present invention, there is provided a display device including: camera module and display panel as described above. The second display area is disposed corresponding to the camera module, so that light can enter the camera module (not shown) through the transparent area 212 of the second display area. On the premise of realizing full-screen display of the display panel, light can penetrate through a local area of the display panel, so that a camera module of the display device can conveniently acquire an external image. Specifically, the display panel of the present invention includes a first display region 100 and a second display region whose periphery is surrounded by the first display region; the second display area includes a plurality of display units 210, the display units 210 include a light emitting area 211 and a light transmitting area 212, and when the area ratio of the light transmitting area 212 in each display unit 210 is greater than 50%, the second display area is in a partially transparent display state, and the second display area can display and transmit light, so that the camera module of the display device can obtain an external image.
According to another aspect of the present invention, there is provided a method for manufacturing a display panel, including:
s110, providing a substrate 21;
s120, forming a pixel circuit layer 23 on the substrate 21, where the pixel circuit layer 23 includes a plurality of first openings, and a portion of the substrate is exposed through the first openings; specifically, the pixel circuit layer may be manufactured by a Low Temperature Polysilicon (LTPS) array process (low temperature polysilicon) 1y-siL1 icon) and the first opening is formed to avoid the line in the light-transmitting area. Compared with the traditional amorphous silicon display, the LTPS display has the greatest difference that the LTPS has higher reaction speed and has the advantages of high brightness, high resolution, low power consumption and the like.
S130, forming a patterned pixel defining layer 26 above the pixel circuit layer 23, where the pixel defining layer 26 includes a plurality of second openings, and each of the second openings corresponds to one of the first openings;
s140, forming an organic light emitting element layer covering the second opening on the pixel defining layer 26; the organic light-emitting element layer comprises a light-emitting layer which can be divided into a red light-emitting layer 28, a green light-emitting layer 29 and a blue light-emitting layer 30; specifically, the organic light emitting element layer may further include an anode layer 25, a hole injection layer 27, a hole transport layer, an electron injection layer, a cathode layer 31, and the like. Further, the anode layer 25 may be fabricated by LTPS array process, and then other layers of the organic light emitting device layer may be formed by evaporation.
S150, removing the organic light-emitting element layer covering the second opening through a laser etching process to form a light-transmitting area N1 through which light can penetrate.
Specifically, referring to fig. 2, a full-high-definition display panel of 6.39 inches, for example, may include 329 pixels per inch, each having a size of 66X66 um. Four pixels are used as a display unit 210. Each side of each display unit 210 is left with a 5um trace width. When the design ratio of the second opening is 50%, the laser etching process is used to remove the organic light-emitting element layer covering the second opening, the laser precision can be preset to +/-15 um, and the light transmittance of each display unit 210 can reach 42%.
S160, coating optical cement on the light-transmitting area N1 to form an optical cement layer 33; the optical adhesive layer 33 not only facilitates to increase the transmittance of the light-transmitting region N1, but also further enhances the pressure resistance of the light-transmitting region N1.
And S170, forming an encapsulation layer 32 on the organic light-emitting element layer and the side, opposite to the substrate 21, of the optical adhesive layer 33. The encapsulation layer may be a glass cover plate.
Further, after the step of forming the light-transmitting region N1 through which light can pass, a support layer 34 may be further formed at the edge of the light-transmitting region N1 to provide sufficient pressure resistance to the light-transmitting region.
As shown in fig. 3, in other embodiments of the present invention, the encapsulation layer 32 may also be a thin film encapsulation layer, and the thin film encapsulation layer may be an inorganic thin film, an organic thin film, or an organic-inorganic hybrid thin film, so as to have a better water and oxygen blocking effect, and further improve the service life of the display panel. The film packaging layer covers the surfaces of the cathode layer 31 of the light emitting region L2 and the substrate 21 of the light transmitting region N2, and the bending resistance of the display panel is improved.
The LTPS technology is a polysilicon film formation technology applied to the manufacture of flat panel displays. In the packaging process of LTPS, excimer laser is used as a heat source, laser beams with uniformly distributed energy are generated after the laser beams pass through a projection system and are projected on a glass substrate with an amorphous silicon structure, the amorphous silicon structure glass substrate can be converted into a polysilicon structure after absorbing the energy of the excimer laser, and the whole processing process is finished at the temperature of below 600 ℃, so that the LTPS can be suitable for common glass substrates. The LTPS has a mobility of transistor carriers more than one hundred times higher than that of the amorphous silicon technology, so that the display has the characteristics of high brightness and high resolution and can present better picture quality.
The second display area of the display panel formed by the manufacturing method of the invention presents a local transparent display state, and the second display area can display and transmit light, so that the camera module of the display device can conveniently acquire an external image.
The invention also provides a second manufacturing method of the display panel, which comprises the following steps:
s10, providing a substrate;
s20, forming a pixel circuit layer on the substrate, wherein the pixel circuit layer includes a plurality of first openings, and a portion of the substrate is exposed through the first openings;
s30, forming a patterned pixel definition layer above the pixel circuit layer, where the pixel definition layer includes a plurality of second openings and a groove structure, and each second opening corresponds to one first opening;
s40, forming a light-emitting layer in the groove structure;
s50, forming an electron transport layer over the light emitting layer, the electron transport layer covering the second opening;
s60, forming a patterned light-transmissive region defining layer above the electron transport layer, the light-transmissive region defining a light-transmissive region 212 for light to pass through according to the second opening;
specifically, the light-transmitting region defining layer is made of a micromolecular vapor deposition material (TPM) at a vapor deposition temperature of 200-250 ℃, and the pattern of the light-transmitting region defining layer is defined through a fine metal mask. FIG. 5 is a graph showing the relationship between light with different wavelengths and the light transmittance of a small molecule evaporation material. As shown in FIG. 5, the transmittance of light with a wavelength of 420nm or more in the TPM is as high as 95%. Therefore, the TPM does not have a great negative influence on the light transmittance of the light-transmitting area. Further, referring to fig. 2, a 6.39 inch full-high definition display panel, which may include 329 pixels per inch, each having a size of 66X66um, is also taken as an example. Four pixels are used as a display unit 210. Each side of each display unit 210 is left with a 5um trace width. When the design ratio of the second opening is 64%, the area ratio of the TPM in each display unit is about 50%, so that the light transmittance of each display unit 210 can reach 55% -60%.
And S70, forming a cathode layer above the electron transport layer and spaced from the light-transmitting region defining layer. The cathode layer is characterized by containing a composite metal material such as magnesium silver. Therefore, the cathode layer cannot be attached to the surface of the light-transmitting region defining layer (small molecule evaporation material) due to its own material characteristics, and therefore, the light-transmitting region defining layer is formed by evaporation on the electron transporting layer, and then the cathode layer is formed by evaporation on the electron transporting layer, so that patterning of the opening region of the cathode layer can be realized. Namely, the cathode layer automatically avoids the light-transmitting area defining layer and is formed on the surface of the electron transmission layer at intervals with the light-transmitting area defining layer; and
s80, forming an encapsulation layer over the cathode layer and the light-transmitting region defining layer.
Compared with the first display panel manufacturing method, the second display panel manufacturing method is simpler and more convenient in the aspect of forming process, easy to implement and higher in practicability. Moreover, the light-transmitting area is favorable for realizing higher area occupation ratio in the display unit, and the transmittance of light is improved.
Example 2
Fig. 6 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to the second embodiment of the present invention. As shown in fig. 6, the present embodiment is different from embodiment 1 mainly in that the first color light region R, the second color light region G, and the third color light region B of the light emitting region 221 (corresponding to the region L1 in fig. 3 and the region L2 in fig. 4) of each display unit 220 are collectively disposed along the same side of the display unit where the light emitting region 221 is located, so that the light transmitting region 312 is formed at one side of the light emitting region 221. At this time, the light-transmitting regions 222 (corresponding to the N1 region of fig. 3 and the N2 region of fig. 4) of the display unit are relatively concentrated, which is beneficial to forming by a laser etching process, and is beneficial to increasing the light transmittance of the light-transmitting regions 312, so that the camera module of the display device can conveniently obtain an external image.
Example 3
Fig. 7 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to the third embodiment of the present invention. As shown in fig. 7, the present embodiment is different from embodiment 1 mainly in that the display unit 230 is in a polygonal shape, and the first color light region R, the second color light region G, the third color light region B, and the fourth color light region W (white light emitting regions) of the light emitting region 231 (corresponding to the region L1 in fig. 3 and the region L2 in fig. 4) of each display unit 230 are dispersedly disposed at different corners of the display unit 230 where the light emitting region 231 is located, so that the light transmitting regions 232 extend from the center of the display unit 230 to each side of the display unit 230. At this time, the light-transmitting regions 232 (corresponding to the N1 region of fig. 3 and the N2 region of fig. 4) of the display unit 230 are relatively concentrated, which is beneficial to forming by a laser etching process, and is beneficial to increasing the light transmittance of the light-transmitting regions 232, so that the camera module of the display device can conveniently obtain an external image.
Example 4
Fig. 8 is a schematic diagram showing a pixel distribution of a display unit in the second display region according to a fourth embodiment of the present invention. As shown in fig. 8, the main difference between the present embodiment and embodiment 1 is that the first color light region R, the second color light region G, and the third color light region B of the light emitting region 241 (corresponding to the region L1 in fig. 3 and the region L2 in fig. 4) of each display unit 240 are centrally disposed in the center of the display unit 240 where the light emitting region 241 is located, so that the light transmitting region 242 surrounds the periphery of the light emitting region 241. At this time, the light-transmitting regions 242 (corresponding to the regions N1 in fig. 3 and N2 in fig. 4) of the display unit 240 are relatively concentrated, which is beneficial for forming by a laser etching process, and is beneficial for increasing the light transmittance of the light-transmitting regions 242, so that the camera module of the display device can conveniently obtain an external image.
Example 5
Fig. 9 is a schematic diagram showing a pixel distribution of the second display region of the display panel according to the fifth embodiment of the present invention. As shown in fig. 9, the main difference between this embodiment and embodiment 1 is that the second display region 205 of this embodiment is formed by arranging a plurality of display units in the row direction and the column direction to form a pixel array, and the pixel array and each of the display units are rectangular; the plurality of display units are divided into a first display unit 510, a second display unit 520 and a third display unit 530; among the four first display units 510 located at the four corners of the pixel array, each first display unit 510 is configured with the first color light region, the second color light region and the third color light region of the first display unit 510 in a concentrated manner according to the same orientation of the first display unit 510 located at the same corner in the pixel array; in the second display units 520 located between the two first display units on the same side of the pixel array, each second display unit 520 is configured with the first color light zone, the second color light zone and the third color light zone of the second display unit 520 in a concentrated manner according to the side of the second display unit 520 on the same side of the pixel array; in the plurality of rectangular third display units 530 excluding the first display unit 510 and the second display unit 520 in the pixel array, the first color light region, the second color light region, and the third color light region of each third display unit 530 are dispersedly disposed at different corners of the third display unit 530, and the first color light region, the second color light region, and the third color light region of each third display unit are concentratedly disposed at the center of the third display unit. At this time, the transparent regions of the second display region 205 are concentrated, which is beneficial to forming by a laser etching process, and is beneficial to increasing the transmittance of the transparent regions, so that the camera module of the display device can conveniently obtain external images.
Example 6
Fig. 10 is a schematic diagram showing a pixel distribution of the second display region of the display panel according to the sixth embodiment of the present invention. As shown in fig. 10, the main difference between this embodiment and embodiment 1 is that the second display region 206 of this embodiment is formed by a plurality of display units arranged in a row direction and a column direction to form a pixel array, and the pixel array and each of the display units are rectangular; the plurality of display units are divided into a first display unit 610, a second display unit 620 and a third display unit 630; among the four first display units 610 located at the four corners of the pixel array, each first display unit 610 is configured with the first color light region, the second color light region and the third color light region of the first display unit 610 in a concentrated manner according to the same orientation of the first display unit 610 at the corner of the pixel array; in the second display units 620 located between the two first display units on the same side of the pixel array, each second display unit 620 is configured with the first color light region, the second color light region and the third color light region of the second display unit 620 in a concentrated manner according to the same side of the second display unit 620 in the pixel array; in the plurality of rectangular third display units 630 excluding the first display unit 610 and the second display unit 620 in the pixel array, the first color light region, the second color light region, and the third color light region of each third display unit 630 are centrally disposed at the center of the third display unit 630. At this time, the light-transmitting area of the second display area 206 is concentrated, which is beneficial to forming by a laser etching process, and is beneficial to increasing the light transmittance of the light-transmitting area, so that the camera module of the display device can conveniently obtain an external image.
In summary, in the invention, on the premise of realizing full-screen display of the display panel, light can penetrate through a local area of the display panel, so that the camera module of the display device can obtain an external image.
Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.

Claims (10)

1. A display panel, comprising:
a first display area;
a second display area, a periphery of the second display area being surrounded by the first display area;
the second display area comprises a plurality of display units, each display unit comprises a light emitting area and a light transmitting area, the light emitting area is provided with a first color light area, a second color light area and a third color light area, and the light transmitting area can be penetrated by light and the light can be transmitted out of the display panel; the area ratio of the light-transmitting area in each display unit is more than 50%.
2. The display panel of claim 1, wherein the display unit is polygonal, and the first color light area, the second color light area, and the third color light area of each light-emitting area are collectively disposed at one corner of the display unit where the light-emitting area is located.
3. The display panel of claim 1, wherein the first color light area, the second color light area, and the third color light area of each light emitting area are collectively disposed along a same side of the display unit where the light emitting area is located, such that the light transmitting area is formed at a side of the light emitting area.
4. The display panel of claim 1, wherein the display unit is polygonal, and the first color light area, the second color light area, and the third color light area of each light emitting area are dispersedly disposed at different corners of the display unit where the light emitting area is located, such that the light transmissive area extends from a center of the display unit to each side of the display unit.
5. The display panel of claim 1, wherein the first color light area, the second color light area, and the third color light area of each light emitting area are collectively disposed at a center of the display unit where the light emitting area is located, such that the light transmitting area surrounds a periphery of the light emitting area.
6. The display panel according to claim 1, wherein the display panel comprises:
the packaging structure comprises a substrate and a packaging layer, wherein the substrate and the packaging layer are arranged oppositely;
the pixel circuit layer and the organic light-emitting element layer are formed between the substrate and the packaging layer and are positioned in the light-emitting areas of the first display area and the second display area; and
and the optical adhesive layer is formed between the substrate and the packaging layer and is positioned in the light transmitting area of the second display area.
7. The display panel of claim 6, further comprising a support layer between the substrate and the encapsulation layer, a projection of the support layer on the substrate being between the light emitting areas and the light transmissive areas.
8. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a substrate;
forming a pixel circuit layer on the substrate, wherein the pixel circuit layer comprises a plurality of first openings, and a part of the substrate is exposed through the first openings;
forming a patterned pixel definition layer over the pixel circuit layer, the pixel definition layer including a plurality of second openings;
forming an organic light emitting element layer covering the second opening on the pixel defining layer;
removing the organic light-emitting element layer covering the second opening by a laser etching process to form a light-transmitting area for light to penetrate through;
coating optical glue on the light-transmitting area to form an optical glue layer; and
and forming an encapsulation layer on one side of the organic light-emitting element layer and the optical adhesive layer, which faces away from the substrate.
9. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a substrate;
forming a pixel circuit layer on the substrate, wherein the pixel circuit layer comprises a plurality of first openings, and a part of the substrate is exposed through the first openings;
forming a patterned pixel defining layer above the pixel circuit layer, wherein the pixel defining layer comprises a plurality of second openings and a groove structure, and each second opening corresponds to one first opening;
forming a light emitting layer in the groove structure;
forming an electron transport layer over the light emitting layer, the electron transport layer covering the second opening;
forming a patterned light-transmitting region defining layer above the electron transport layer, wherein the light-transmitting region defining layer defines a light-transmitting region through which light can pass according to the second opening;
forming a cathode layer over the electron transport layer and spaced apart from the light transmissive region defining layer; and
and forming an encapsulation layer above the cathode layer and the light-transmitting region defining layer.
10. A display device, comprising:
a camera module; and
the display panel according to any one of claims 1 to 7, wherein the second display region is disposed corresponding to the camera module such that light enters the camera module through a light-transmitting region of the second display region.
CN201910597899.2A 2019-07-04 2019-07-04 Display device, display panel and manufacturing method thereof Pending CN112185993A (en)

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CN201910597899.2A CN112185993A (en) 2019-07-04 2019-07-04 Display device, display panel and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910597899.2A CN112185993A (en) 2019-07-04 2019-07-04 Display device, display panel and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN112185993A true CN112185993A (en) 2021-01-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910597899.2A Pending CN112185993A (en) 2019-07-04 2019-07-04 Display device, display panel and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN112185993A (en)

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