CN110556409A - Display device - Google Patents

Display device Download PDF

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Publication number
CN110556409A
CN110556409A CN201910859262.6A CN201910859262A CN110556409A CN 110556409 A CN110556409 A CN 110556409A CN 201910859262 A CN201910859262 A CN 201910859262A CN 110556409 A CN110556409 A CN 110556409A
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CN
China
Prior art keywords
substrate
display device
light
area
emitting unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910859262.6A
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Chinese (zh)
Inventor
李源规
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Govisionox Optoelectronics Co Ltd
Kunshan Guoxian Photoelectric Co Ltd
Original Assignee
Kunshan Guoxian Photoelectric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Guoxian Photoelectric Co Ltd filed Critical Kunshan Guoxian Photoelectric Co Ltd
Priority to CN201910859262.6A priority Critical patent/CN110556409A/en
Publication of CN110556409A publication Critical patent/CN110556409A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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
    • 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
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

the invention discloses a display device, which comprises a display panel and a camera module arranged on one side of the backlight direction of the display panel; the display panel comprises a substrate, a driving circuit layer, a pixel structure layer and a transparent electrode layer; the camera module comprises a camera and a signal processing module; the display panel comprises a light-transmitting area with a net structure, and outside light can be acquired by the camera through the light-transmitting area and is transmitted to the signal processing module for processing. The invention can improve the screen occupation ratio of the display panel and realize real comprehensive screen.

Description

display device
Technical Field
The invention relates to the field of display, in particular to a display device.
Background
With the increasing popularity of mobile portable devices, high screen ratio screens are becoming the future development trend of electronic devices such as mobile phones and tablets due to the better visual experience of users. Mobile electronic terminals, particularly mobile phones, seek the advantages of both portability and large-screen display, which requires electronic products with the highest screen occupation ratio possible. However, the positions of various optical electronic components (such as a receiver, a front camera and an infrared sensor) are often required to be reserved around the display screen of the mobile phone, so that the reduction of the screen frame is limited, and the higher screen occupation ratio is difficult to realize.
in order to minimize the non-display area around the display screen, a series of under-screen built-in component technologies are being developed. Such as underscreen fingerprint recognition, underscreen sensing, and the like. However, the development of the under-screen camera technology faces many problems because the camera component is arranged below the display screen, and the external light can be accepted by the camera component only by penetrating the display screen.
Accordingly, there is a need for a display device that overcomes the problems of the prior art.
disclosure of Invention
The invention provides a display device which can greatly improve the screen occupation ratio of a display panel and realize real comprehensive screen.
In one aspect, an embodiment of the present invention provides a display device, including:
the display panel and the camera module are arranged on one side of the backlight direction of the display panel;
the display panel comprises a substrate, a driving circuit layer, a pixel structure layer and a transparent electrode layer; the camera module comprises a camera and a signal processing module; the display panel comprises a light-transmitting area with a net structure, and outside light can be acquired by the camera through the light-transmitting area and is transmitted to the signal processing module for processing.
According to one aspect of the embodiments of the present invention, the light-transmitting region includes a plurality of grooves.
According to an aspect of the embodiments of the present invention, the groove is disposed on one side of the substrate, and the camera is disposed on the other side of the substrate.
According to an aspect of the embodiments of the present invention, the groove sidewall is provided with the transparent electrode layer.
according to an aspect of the embodiments of the present invention, an orthogonal projection of the groove on the substrate forms a first region, and an orthogonal projection of the pixel structure on the substrate forms a second region, wherein the first region and the second region do not overlap.
According to an aspect of the embodiments of the invention, it is characterized in that an orthographic projection of the groove on the substrate forms a first region, and an orthographic projection of the pixel structure on the substrate forms a second region, wherein the first region and the second region at least partially overlap.
According to an aspect of the embodiments of the present invention, the pixel structure includes a first light emitting unit, a second light emitting unit; the orthographic projection of the first light-emitting unit on the substrate forms a third area, the orthographic projection of the second light-emitting unit on the substrate forms a fourth area, and the first area is respectively overlapped with the third area and the fourth area.
according to an aspect of the embodiments of the present invention, the pixel structure further includes a third light emitting unit, a fourth light emitting unit; the orthographic projection of the third light-emitting unit on the substrate forms a fifth area, the orthographic projection of the fourth light-emitting unit on the substrate forms a sixth area, and the first area is respectively overlapped with the fifth area and the sixth area.
In another aspect, an embodiment of the present invention provides a method for manufacturing a display device, including:
forming a transparent substrate;
Arranging a camera module on one side of the transparent substrate;
forming a driving circuit layer on the other side of the transparent substrate;
Forming a first transparent electrode on the driving circuit layer;
forming a pixel structure layer on the first transparent electrode;
Removing part of the drive circuit layer, part of the pixel structure layer and part of the first transparent electrode to form a groove;
and forming a second transparent electrode which covers the inner wall of the groove.
According to an aspect of the embodiment of the present invention, a portion of the second transparent electrode located at the bottom of the groove is removed.
drawings
other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
FIG. 1 shows a top view of a display device according to an embodiment of the invention;
FIG. 2 illustrates a cross-sectional view of a display device along the direction A-A' of FIG. 1 according to one embodiment of the present invention;
FIG. 3 illustrates a cross-sectional view of a display device according to another embodiment of the present invention taken along the line A-A' of FIG. 1;
Fig. 4 illustrates an orthographic view of a light emitting cell and a groove on a substrate in a display device according to an embodiment of the present invention;
fig. 5 illustrates an orthographic view of a light emitting cell and a groove on a substrate in a projection view display apparatus of the light emitting cell according to another embodiment of the present invention;
Fig. 6 illustrates an orthographic view of a light emitting cell and a groove on a substrate in a display device according to another embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a method of fabricating a display device according to an embodiment of the invention;
in the figure:
10, a display device; 20-1, 20-2-display panel;
110, 210-substrate; 120, 220-drive circuit layer; 130, 230-pixel structure layer; 140, 240-transparent electrode layer; 250-grooves; TR, light transmitting area; m1, M2-camera module; 230(1), 230(2), 230(3) -projection of the light-emitting unit on the transparent substrate; 250(1), 250(2), 250(3) -projection of the grooves on the transparent substrate.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
An embodiment of the present invention provides a display device, where the display panel includes a display panel, and the display panel may be an Organic Light Emitting Diode (OLED) display panel. Hereinafter, a display device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 illustrates a top view of a display device according to an embodiment of the present invention, and fig. 2 illustrates a cross-sectional view of the display device according to an embodiment of the present invention taken along a-a' direction in fig. 1.
Fig. 2 shows a display device 10-1 including a display panel 20-1 and a camera module M1. The display panel 20-1 includes a transparent substrate 110, a driving circuit layer 120, a pixel structure layer 130, and a transparent electrode layer 140.
The transparent substrate 110 may be a substrate made of glass, and in some embodiments, may also be a substrate made of Polyimide (PI) material or a material containing PI, so that the substrate 110 may be bent.
The driving circuit layer 120 is located on the transparent substrate 110. The driving circuit layer 120 includes an array of Thin Film transistors (Thin Film transistors), and further includes metal lines and insulating spacers between the metal lines. The thin film transistor may be an NMOS device or a PMOS device, and the material thereof may be silicon, polysilicon, or the like. The metal line can be made of copper, aluminum, silver or alloy thereof, and the insulating spacer layer can be made of silicon oxide, silicon nitride or composite material thereof.
The pixel structure layer 130 is disposed on the driving circuit layer 120 and includes a light emitting unit including a plurality of sub-pixels, which may be red, blue or green sub-pixels. The sub-pixels are spaced apart by a pixel definition layer.
The transparent electrode layer 140 is disposed on the pixel structure layer 130, and may be made of Indium Tin Oxide (ITO), Indium zinc Oxide (izo), or the like.
The camera module M1 is disposed on one side of the backlight of the display panel 20-1, i.e. below the transparent substrate 110, and includes a camera and a signal processing module. A top view of a display device 10-1 as shown in fig. 1 includes several light-Transmitting Regions (TR), which may be formed by gaps between a driving circuit layer 120 and a pixel structure layer 130 in a display panel. Gaps are formed among opaque structures such as metal wires and light emitting units in the driving circuit layer 120 and the pixel structure layer 130, a large number of gaps form a mesh-shaped transparent area on the whole, and external light can pass through the transparent electrode, the mesh-shaped transparent area and the transparent substrate to enter the camera, be captured by the camera and be transmitted to the signal processing module for processing. So design, then can utilize the netted light-transmitting structure in the display panel, will make a video recording the module and set up in display panel's below, avoid fluting or punch to display panel's screen account for than has been improved, the design of comprehensive screen has really been realized.
Fig. 3 is a cross-sectional view of a display device according to another embodiment of the present invention taken along a-a' direction in fig. 1, which is a modification of the display device shown in fig. 2. As shown in fig. 3, fig. 3 illustrates a display device 10-2 including a display panel 20-2 and a camera module M2. The display panel 20-2 includes a transparent substrate 210, a driving circuit layer 220, a pixel structure layer 230, a transparent electrode layer 240, and a groove 250.
The transparent substrate 210 may be a substrate made of glass, and in some embodiments, may also be a substrate made of Polyimide (PI) material or a material containing PI, so that the substrate 210 may be bent.
The driving circuit layer 220 is located on the transparent substrate 210. The driving circuit layer 220 includes an array of Thin Film transistors (Thin Film transistors), and further includes metal lines and insulating spacers between the metal lines. The thin film transistor may be an NMOS device or a PMOS device, and the material thereof may be silicon, polysilicon, or the like. The metal line can be made of copper, aluminum, silver or alloy thereof, and the insulating spacer layer can be made of silicon oxide, silicon nitride or composite material thereof.
the pixel structure layer 230 is disposed on the driving circuit layer 220 and includes a light emitting unit including a plurality of sub-pixels, which may be red, blue or green sub-pixels. The sub-pixels are spaced apart by a pixel definition layer.
The transparent electrode layer 240 is disposed on the pixel structure layer 230, and covers the inner wall (including the sidewall and the bottom) of the groove 250 or only the sidewall of the groove, but not the bottom of the groove, which can further improve the transmittance of external light. The transparent electrode layer 240 may be made of Indium Tin Oxide (ITO), indium zinc Oxide, or the like.
The camera module M2 is disposed on one side of the backlight of the display panel 20-2, i.e. below the transparent substrate 210, and includes a camera and a signal processing module. Between adjacent light emitting units, a groove 250 is opened. The groove 250 is formed on the transparent substrate 210 by laser-removing a portion of the pixel structure layer 230 and a portion of the driving circuit layer 220. This recess 250 can increase outside income light volume, makes the module of making a video recording acquire more external light, can not destroy the display area moreover, so design not only realized the function of making a video recording under the screen, makes to shoot moreover more clearly.
Fig. 4 shows an orthographic view of a light emitting unit and a groove on a substrate in a display device according to an embodiment of the invention as shown in fig. 3, as shown in fig. 4, a region 250(1) is an orthographic projection of the groove on a transparent substrate 210, and is marked as a first region; the region 230(1) is an orthographic projection of the light emitting unit in the pixel structure layer 230 on the transparent substrate 210, and is referred to as a second region; wherein the first region and the second region do not overlap.
fig. 5 shows another layout of the orthographic projection of the light emitting cells and the grooves on the substrate in the display device, and the pixel structure layer 230 includes a first light emitting cell and a second light emitting cell, wherein the orthographic projection of the first light emitting cell on the transparent substrate 210 is denoted as a third area, and the orthographic projection of the second light emitting cell on the transparent substrate 210 is denoted as a fourth area; the orthographic projection of the groove on the transparent substrate 210 is region 250(2) and is denoted as a first region, and the first region overlaps with the third region and the fourth region, respectively.
fig. 6 shows another layout of the orthographic projection of the light emitting units and the grooves on the substrate in the display device, wherein the pixel structure layer 230 comprises a first light emitting unit, a second light emitting unit, a third light emitting unit and a fourth light emitting unit, wherein the orthographic projection of the first light emitting unit on the transparent substrate 210 is denoted as a third area, the orthographic projection of the second light emitting unit on the transparent substrate 210 is denoted as a fourth area, the orthographic projection of the third light emitting unit on the transparent substrate 210 is denoted as a fifth area, and the orthographic projection of the fourth light emitting unit on the transparent substrate 210 is denoted as a sixth area; the orthographic projection of the groove on the transparent substrate 210 is region 250(3) and is denoted as a first region, and the first region is overlapped with the third region, the fourth region, the fifth region and the sixth region respectively.
Fig. 7 is a schematic diagram illustrating a manufacturing method of a display device according to an embodiment of the present invention, which specifically includes manufacturing a display panel and manufacturing a camera module on one side of a backlight direction of the display panel, where the camera module includes a camera and a signal processing module. The manufacturing method of the display panel comprises the following steps:
s1, a transparent substrate is formed, wherein the transparent substrate may be a substrate made of glass, or in some embodiments, a substrate made of Polyimide (PI) material or PI-containing material, so that the substrate can be bent.
s2, forming a driving circuit layer on the transparent substrate. The driving circuit layer includes an array of Thin Film transistors (Thin Film transistors), and also includes metal lines and insulating spacers between the metal lines. The thin film transistor may be an NMOS device or a PMOS device, and the material thereof may be silicon, polysilicon, or the like. The metal line can be made of copper, aluminum, silver or alloy thereof, and the insulating spacer layer can be made of silicon oxide, silicon nitride or composite material thereof.
S3, forming a first transparent electrode on the driving circuit layer, wherein the first transparent electrode may be an anode and may be Indium Tin Oxide (ITO), Indium zinc Oxide, or the like.
S4, forming a pixel structure layer on the driving circuit layer, wherein the pixel structure layer includes a light-emitting unit, and the light-emitting unit includes a plurality of sub-pixels, and the sub-pixels can be red sub-pixels, blue sub-pixels or green sub-pixels. The sub-pixels are spaced apart by a pixel definition layer.
And S5, between two adjacent light-emitting units, removing part of the drive circuit layer, part of the pixel structure layer and part of the first transparent electrode by laser, and forming a groove on the transparent substrate.
S6, forming a second transparent electrode on the pixel structure and the inner wall (including the sidewall and the bottom) of the groove by evaporation, wherein the second transparent electrode can be a cathode, and the cathode material can be Indium Tin Oxide (ITO), Indium zinc Oxide, etc. Preferably, the cathode at the bottom of the groove can be removed, so that the light passing rate of the display panel can be further improved, and the picture can be taken more clearly.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A display device, comprising:
The display device comprises a display panel and a camera module arranged on one side of the backlight direction of the display panel;
The display panel comprises a substrate, a driving circuit layer, a pixel structure layer and a transparent electrode layer; the camera module comprises a camera and a signal processing module; the display panel comprises a light-transmitting area with a net structure, and outside light can be acquired by the camera through the light-transmitting area and is transmitted to the signal processing module for processing.
2. the display device according to claim 1, wherein the light-transmissive region comprises a plurality of grooves.
3. The display device according to claim 2, wherein the groove is provided on one side of the substrate, and the camera is provided on the other side of the substrate.
4. A display device according to claim 2, wherein the groove side wall is provided with the transparent electrode layer.
5. A display device as claimed in any one of claims 2 to 4, wherein an orthographic projection of the recess on the substrate forms a first region and an orthographic projection of the pixel structure on the substrate forms a second region, wherein the first and second regions do not overlap.
6. A display device as claimed in any one of claims 2 to 4, characterized in that an orthographic projection of the recess on the substrate forms a first region and an orthographic projection of the pixel structure on the substrate forms a second region, wherein the first region and the second region at least partly overlap.
7. the display device according to claim 6, wherein the pixel structure comprises a first light emitting unit, a second light emitting unit; the orthographic projection of the first light-emitting unit on the substrate forms a third area, the orthographic projection of the second light-emitting unit on the substrate forms a fourth area, and the first area is respectively overlapped with the third area and the fourth area.
8. the display device according to claim 7, wherein the pixel structure further comprises a third light emitting unit, a fourth light emitting unit; the orthographic projection of the third light-emitting unit on the substrate forms a fifth area, the orthographic projection of the fourth light-emitting unit on the substrate forms a sixth area, and the first area is respectively overlapped with the fifth area and the sixth area.
9. A method of manufacturing a display device, comprising:
Forming a transparent substrate;
Arranging a camera module on one side of the transparent substrate;
forming a driving circuit layer on the other side of the transparent substrate;
Forming a first transparent electrode on the driving circuit layer;
Forming a pixel structure layer on the first transparent electrode;
removing part of the drive circuit layer, part of the pixel structure layer and part of the first transparent electrode, and forming a groove on the transparent substrate;
And forming a second transparent electrode which covers the inner wall of the groove.
10. The manufacturing method according to claim 9, wherein a portion of the second transparent electrode at the bottom of the groove is removed.
CN201910859262.6A 2019-09-11 2019-09-11 Display device Pending CN110556409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910859262.6A CN110556409A (en) 2019-09-11 2019-09-11 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910859262.6A CN110556409A (en) 2019-09-11 2019-09-11 Display device

Publications (1)

Publication Number Publication Date
CN110556409A true CN110556409A (en) 2019-12-10

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Family Applications (1)

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Country Link
CN (1) CN110556409A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107230687A (en) * 2016-03-24 2017-10-03 三星显示有限公司 Display device
CN110085650A (en) * 2019-05-24 2019-08-02 武汉华星光电半导体显示技术有限公司 Display panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107230687A (en) * 2016-03-24 2017-10-03 三星显示有限公司 Display device
CN110085650A (en) * 2019-05-24 2019-08-02 武汉华星光电半导体显示技术有限公司 Display panel

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Application publication date: 20191210