WO2020087799A1

WO2020087799A1 - Display screen and display terminal

Info

Publication number: WO2020087799A1
Application number: PCT/CN2019/074282
Authority: WO
Inventors: 李高敏; 楼均辉; 安乐平; 宋艳芹; 张露; 唐静
Original assignee: 昆山维信诺科技有限公司; 云谷（固安）科技有限公司; 昆山国显光电有限公司
Priority date: 2018-10-31
Filing date: 2019-01-31
Publication date: 2020-05-07
Also published as: CN208861990U

Abstract

The present application relates to a display screen and a display terminal. The display screen is provided with a first display area and a second display area that are connected to each other; and the first display area and the second display area are used for displaying a moving or static picture. The display screen comprises: a first display panel, which is disposed in the first display area; a second display panel, which is disposed in the second display area; and an isolation structure. The isolation structure is formed between the first display panel and the second display panel and is used for isolating an electric field between the first display panel and the second display panel. The described display screen may implement genuine full screen display.

Description

Display screen and display terminal

Technical field

This application relates to the field of display technology, in particular to a display screen and a display terminal.

Background technique

With the rapid development of electronic devices, users have higher and higher requirements on the screen ratio, so that the full screen display of electronic devices has attracted more and more attention from the industry. Due to the need to integrate such front-facing cameras, earpieces and infrared sensing elements on traditional electronic devices such as mobile phones and tablets, the front camera and infrared can be set in the slotted area by notching the display (Notch) Sensors, etc. However, the inventor found that this method does not increase the screen-to-body ratio in a true sense, and cannot achieve a true full-screen display.

Summary of the invention

Based on this, it is necessary to provide a display screen and a display terminal for the problem that the traditional display screen cannot increase the screen ratio in the true sense and cannot realize the real full-screen display.

A display screen having adjacent first display areas and second display areas; both the first display area and the second display area are used to display dynamic or static pictures; the display screen includes:

A first display panel, set in the first display area;

A second display panel provided in the second display area; and

An isolation structure formed between the first display panel and the second display panel and used to isolate the electric field between the first display panel and the second display panel.

The above display screen, through the composite screen structure formed by the first display panel and the second display panel, can truly realize full-screen display. And an isolation structure is provided between the first display panel and the second display panel, the isolation structure can isolate the electric field between the first display panel and the second display panel, thereby avoiding mutual interference between the two display panels, Ensure the normal display of the display body.

In one of the embodiments, the first display panel includes a first conductive trace layer; the second display panel includes a second conductive trace layer; the isolation structure is located on the first conductive trace layer and the Between the second conductive trace layer and at the same layer as the first conductive trace layer or the second conductive trace layer; or the first conductive trace layer and the second conductive trace layer The layer and the isolation structure are on the same layer;

In one of the embodiments, the isolation structure and the first conductive trace layer or the second conductive trace layer are formed in the same process step so that the isolation structure and the first conductive trace layer Or the second conductive trace layer is on the same layer.

In one of the embodiments, the first display panel includes a first conductive trace layer; the second display panel includes a second conductive trace layer; the isolation structure is located on the first conductive trace layer and the Between the second conductive trace layers.

In one of the embodiments, the isolation structure, the first conductive trace layer and the second conductive trace layer are formed in the same process step so that the isolation structure, the first conductive trace layer It is on the same layer as the second conductive trace layer.

In one embodiment, the conductive material of the isolation structure is one or more of molybdenum aluminum molybdenum, indium tin oxide, titanium aluminum titanium, silver and aluminum.

In one embodiment, the second conductive trace is a wavy trace; in the extending direction of the wavy trace, the width of the wavy trace continuously changes or changes intermittently.

In one embodiment, the first conductive trace is a wavy trace; in the extending direction of the wavy trace, the width of the wavy trace continuously changes or changes intermittently.

In one of the embodiments, the thickness of the isolation structure is 0.1 nm to 10000 nm.

In one of the embodiments, the isolation structure is connected to the ground of the display screen.

In one of the embodiments, the display screen further includes a flexible circuit board; the flexible circuit board is connected between the isolation structure and the ground of the display screen.

In one embodiment, the light transmittance of each structural film material of the second display panel is greater than 90%.

In one of the embodiments, the second display panel is a PMOLED display panel; the second display panel includes a substrate and a plurality of wavy first electrodes formed on the substrate; the first electrode is a cathode Or an anode; a plurality of the first electrodes extend in parallel in the same direction, and adjacent first electrodes have a pitch; in the extension direction of the first electrode, the width of the first electrode changes continuously or intermittently , And the pitch changes continuously or intermittently.

In one of the embodiments, the shape of the sub-pixels in the second display panel is circular, oval or dumbbell-shaped.

In one of the embodiments, the second display panel is an AMOLED display panel; the second display panel includes a substrate and a plurality of mutually independent first electrodes formed on the substrate; the first electrode is an anode Each first electrode corresponds to a light-emitting structure; the first electrode is circular, oval or dumbbell-shaped.

In one of the embodiments, the shape of the sub-pixels in the first display panel is circular, oval or dumbbell-shaped.

A display screen having adjacent first display areas and second display areas; both the first display area and the second display area are used to display dynamic or static pictures; the display screen includes: a first display A panel is provided in the first display area; the first display panel is an AMOLED display panel; and a second display panel is provided in the second display area; the first display panel is provided to cover the first A reference voltage layer in the display area; the reference voltage layer is connected to the cathode of the first display panel; the display screen further includes a conductive connection line provided in the frame area; the conductive connection line is connected to the reference voltage layer To wrap the second display panel.

The above display screen can directly wrap the second display panel by using the reference voltage layer in the first display panel and the additional conductive connection line, so that the second display panel and the first display panel are at the same level, which can maximize Reduce the interference of the second display panel to the first display panel.

A display terminal, including:

Equipment body with device area;

The display screen according to any one of the foregoing embodiments is covered on the device body;

The device area is located below the second display panel, and the device area is provided with a photosensitive device that collects light through the second display panel.

BRIEF DESCRIPTION

1 is a schematic structural diagram of a display screen in an embodiment;

2 is a schematic cross-sectional view taken along line A-A 'in FIG. 1;

Figure 3 is a cross-sectional view taken along line BB 'in Figure 2;

4 is a schematic structural diagram of a first electrode of a PMOLED display panel in an embodiment;

5 is a schematic structural diagram of a first electrode of an AMOLED display panel in an embodiment;

6 is a cross-sectional view of an AMOLED-like display panel in an embodiment;

7 is a schematic diagram of a pixel circuit of an AMOLED-like display panel in an embodiment;

8 is a top view of a display screen in another embodiment;

9 is a schematic structural diagram of a display terminal in an embodiment;

FIG. 10 is a schematic structural diagram of a device body in an embodiment.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be described in further detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

In the description of this application, it should be understood that the terms "center", "horizontal", "upper", "lower", "left", "right", "vertical", "horizontal", "top", " The "orientation", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the application and simplifying the description, rather than indicating or implying the indicated devices or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, it should be noted that when an element is referred to as being "formed on another element", it may be directly connected to another element or there may be a center element at the same time. When an element is considered to be “connected” to another element, it can be directly connected to another element or there can be a center element at the same time. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

As described in the background art, due to the need to integrate photosensitive elements such as a front camera, a front camera and an infrared sensor can be provided in the slotted area by grooving the display screen. In fact, the slotted area is still a non-display area, which makes it impossible to achieve full-screen display. Based on the above problems, the present application provides a display screen, in which a transparent display panel is provided in the slotted area to realize a full screen display of the electronic device. However, due to differences in the driving methods and device structures of the display panel in the slotted area and the display panels in other areas, interference may occur between them, and the display screen may not display properly. Even if the display panel in the slotted area and the display panel in the other areas use the same panel structure, there will be mutual interference between the two due to the difference in driving methods, resulting in a problem that the display may not display properly.

For example, when the slotted area uses a PMOLED display panel and the other areas (that is, non-slotted areas) are AMOLED display panels, since the PMOLED display panel is driven by the "current type + line scan", the line scan signal is electrically In general, they are above 10V and the frequency is above 10KHz, while the level of the cathode scanning signal (that is, the column scanning signal) is generally around 8V and the frequency is between 100Hz and 200Hz; and the driving method of the AMOLED display panel is voltage type driving The driving voltage is about 6V, and the distance between the two display panels is in the micron level. Therefore, the frame frequency and line frequency signal of the PMOLED display panel will interfere with the timing of the AMOLED display, resulting in the AMOLED display panel not displaying properly , So that the entire display cannot be displayed normally.

To solve the above technical problems, an embodiment of the present application provides a display screen, which can solve the above problems well. FIG. 1 is a schematic structural diagram of a display screen in an embodiment. Referring to FIG. 1, the display screen has a first display area AA1 and a second display area AA2. The first display area AA1 and the second display area AA2 are connected to each other. In an embodiment, the second display area AA2 may be disposed in the top middle area of the display screen, so that there is three-face contact with the first display area AA1, as shown in FIG. 1. In other embodiments, the second display area AA2 may also be disposed on one side of the display screen, and the first display area AA1 is disposed on the other side of the display screen. For example, the second display area AA2 and the first display area AA1 are sequentially distributed along the length direction of the display screen, or sequentially distributed along the width direction of the display screen. At this time, only one side of the first display area AA1 and the second display area AA2 is connected. In FIG. 1, the number of the first display area AA1 and the second display area AA2 are both one. In other embodiments, the number of the first display area AA1 and the second display area AA2 may be two or two the above. Both the first display area AA1 and the second display area AA2 are used to display dynamic or static pictures.

In this embodiment, the display screen includes a first display panel 110, a second display panel 120, and an isolation structure (not shown). Among them, the first display panel 110 is disposed on the first display area AA1, and the second display panel 120 is disposed on the second display area AA2. The first display panel 110 and the second display panel 120 may have the same panel structure, or different panel structures may be provided as needed. In this embodiment, an isolation structure is formed between the first display panel 110 and the second display panel 120 to isolate the electric field between the first display panel 110 and the second display panel 120. Therefore, the driving signal of the second display panel 120 cannot interfere with the driving signal of the first display panel 110, nor can the driving signal of the first display panel 110 interfere with the driving signal of the second display panel 120, that is, The display panel 110 and the second display panel 120 interfere with each other to ensure that the display screen can display normally.

In one embodiment, the first display panel 110 includes a first conductive trace layer L1, and the second display panel 120 includes a second conductive trace layer L2. In one embodiment, the first conductive trace layer L1 and the second conductive trace layer L2 are located in the same layer. The isolation structure is formed between the conductive trace layer L1 of the first display panel 110 and the conductive trace layer L2 of the second display panel 120, as shown in FIGS. 2 and 3. Among them, FIG. 2 only shows a schematic diagram of the conductive trace layer, and FIG. 3 is a cross-sectional view taken along line BB ′ in FIG. 2. In FIGS. 2 and 3, 130 indicates an isolation structure. At this time, the conductive trace layer L1, the conductive trace layer L2 and the isolation structure are formed in the same process step, that is, the conductive trace layer L1, the conductive trace layer L2 and the isolation structure have the same conductive material, such as molybdenum aluminum Molybdenum, indium tin oxide, titanium aluminum titanium, silver or aluminum, etc. By forming the isolation structure with the conductive trace layer L2 and the conductive trace layer L3 in the same process step, the complexity of the process preparation will not be increased. In other embodiments, the conductive trace layer L1 of the first display panel 110 and the conductive trace layer L2 of the second display panel 120 may also be located on different horizontal layers. At this time, the isolation structure and the conductive trace layer L1 of the first display panel 110 may be formed in the same process step, or the isolation structure and the conductive trace layer L2 of the second display panel 120 may be formed in the same process step . In another embodiment, the isolation structure may also be formed by etching and filling between the conductive trace layers of the first display panel 110 and the second display panel 120 through an additional process.

In an embodiment, the thickness D of the isolation structure may be 0.1 nm to 10000 nm. Since the isolation structure isolates the electric field between the first display panel 110 and the second display panel 120, the isolation structure does not need to completely isolate the contact surface of the first display panel 110 and the second display panel 120, and its thickness The film thickness that can be achieved by the process can be used. In other embodiments, the isolation structure may also wrap and isolate the entire contact surfaces of the first display panel 110 and the second display panel 120 to ensure that there is no mutual interference between the two. In this case, the first display panel 110 and The second display panels 120 are completely spaced apart, and there is no contact area.

In an embodiment, the materials of the first conductive trace layer L1, the second conductive trace layer L2 and the isolation structure may be metal or metal oxide. For example, the materials of the first conductive trace layer L1, the second conductive trace layer L2 and the isolation structure may be molybdenum aluminum molybdenum, indium tin oxide, titanium aluminum titanium, silver or aluminum. In another embodiment, the second display panel 120 is a transparent display panel, so the material of the second conductive trace layer L2 can be a transparent metal oxide, such as indium tin oxide (ITO), indium zinc oxide (IZO), Silver-doped indium tin oxide (Ag + ITO) or silver-doped indium zinc oxide (Ag + IZO). The thickness of the conductive traces in each conductive trace layer can be determined according to the signal transmitted in the traces.

In an embodiment, the isolation structure is connected to the ground wire inside the display screen, thereby keeping the level of the isolation structure consistent with the location level, which can reduce the mutual interference between the second display panel 120 and the first display panel 110, Ensure the normal display of the display. Specifically, the isolation structure may be connected to the ground of the main board of the display screen, so as to shield interference. In one embodiment, the isolation structure is connected to the ground through a single-sided metal wire interface. In other embodiments, the isolation structure may also be connected to the ground wire through a bilateral or multilateral metal wire interface, thereby reducing the ground impedance and having a better shielding effect. In an embodiment, the display screen further includes a flexible circuit board. The isolation structure is connected between the flexible circuit board and the ground of the display screen.

In an embodiment, the second display panel 120 may be a transparent or transflective display panel. The transparency of the display panel can be achieved by using various layers of materials with good light transmittance. For example, each structural film layer uses a material with a light transmittance greater than 90%, so that the light transmittance of the entire display panel can be above 70%. Further, each transparent functional layer uses a material with a light transmittance greater than 95%, which further improves the light transmittance of the display panel, and even makes the light transmittance of the entire display panel above 80%. Specifically, the material of the conductive trace is ITO (indium tin oxide), IZO (indium zinc oxide), Ag + ITO (silver doped indium tin oxide) or Ag + IZO (silver doped indium zinc oxide), etc. The material of the insulating layer is preferably SiO ₂ , SiN _x and Al ₂ O _3, etc., and the pixel definition layer uses a highly transparent material.

It can be understood that the transparency of the display panel can also be achieved by other technical means. The transparent or transflective display panel can display the picture normally when it is in the working state, and when the display panel is in the state of other functional requirements, external light can be irradiated to the photosensitive device placed under the display panel Wait.

By setting the second display panel 120 as a transparent or transflective display panel, a photosensitive device such as a camera can be disposed under the second display panel 120. It can be understood that the second display area AA2 can normally perform dynamic or static screen display when the photosensitive device is not working, and when the photosensitive device is working, the second display area AA2 changes as the display content of the overall display changes, such as The external image being photographed is displayed, or the second display area AA2 may also be in a non-display state, thereby further ensuring that the photosensitive device can collect light through the second display panel 120 of the second display area AA2. In other embodiments, the light transmittances of the first display area AA1 and the second display area AA2 may also be the same, that is, the light transmittances of the first display panel 110 and the second display panel 120 may be the same, so that the entire display The screen has good light transmission uniformity, ensuring that the display screen has a good display effect.

In one embodiment, the conductive traces in the second display panel 120 are wavy traces, as shown in FIG. 4. Specifically, in the extending direction of the wavy trace, the width of the wavy trace continuously changes or changes intermittently. Continuously changing width means that the width at any two adjacent positions on the wavy line is different. The discontinuous change in width means that the width of two adjacent positions in the partial area exists on the conductive trace is the same, and the width of the two adjacent positions in the partial area is not the same. The conductive traces in the second display panel 120 are designed as wavy traces, so that when external light passes through the conductive traces, the positions of the diffraction fringes generated at different positions of the conductive traces are different. The diffraction fringes at different positions cancel each other, which can effectively reduce the diffraction effect, thereby ensuring that when the camera is disposed below the second display panel 120, the captured graphics have high definition. In an embodiment, the conductive traces in the first display panel 110 can also be designed as wavy traces, as shown in FIG. 4.

In one embodiment, the first display panel 110 is an AMOLED display panel, and the second display panel 120 is a PMOLED display panel. Specifically, the PMOLED display panel includes a substrate and a plurality of wavy first electrodes formed on the substrate. For details, refer to FIG. 4. In this embodiment, multiple first electrodes extend in parallel in the same direction, and adjacent first electrodes have a pitch. In the extending direction of the first electrode, the width of the first electrode continuously changes or intermittently changes, and the pitch continuously changes or intermittently changes. It can be seen from FIG. 4 that the extending direction of the first electrode is its longitudinal direction. The first electrode may be an anode electrode or a cathode electrode, or the first electrode may include both an anode electrode and a cathode electrode. By arranging the first electrode as a wave-shaped electrode, when external light passes through the first electrode, the positions of the generated diffraction fringes are different between different width positions of the first electrode and different pitches of adjacent first electrodes. The diffraction effects at different positions cancel each other, which can effectively reduce the diffraction effect, thereby ensuring that when the camera is disposed below the second display panel 120, the graphics obtained by the photograph have high definition.

In one embodiment, the first display panel 110 is an AMOLED display panel, and the second display panel 120 is an AMOLED display panel. At this time, the second display panel 120 includes a substrate and a plurality of first electrodes formed independently of each other formed on the substrate, as shown in FIG. 5. Each first electrode corresponds to a light emitting structure. The shape of the first electrode may be circular, elliptical or dumbbell-shaped. FIG. 5 is a schematic diagram of an electrode array formed by using circular first electrodes. In this embodiment, the first electrode is an anode. In other embodiments, the anode electrode in the first display panel 110 may be round, oval, or dumbbell-shaped. By setting the anode electrode to be round, elliptical or dumbbell-shaped, it can be ensured that when light passes through the anode electrode, diffraction stripes with different positions and diffusion directions and diffraction at different positions and directions can be generated at different width positions of the anode electrode The fringes cancel each other, thereby weakening the diffraction effect. Further, each sub-pixel may also be arranged in a circular shape, an elliptical shape, or a dumbbell shape. For details, refer to FIG. 5. By setting each sub-pixel to be circular, elliptical or dumbbell-shaped, the diffraction effect can also be weakened. In addition, a circle, ellipse or dumbbell shape can maximize the area of each sub-pixel to further increase the light transmittance.

In one embodiment, the first display panel 110 is an AMOLED display panel, and the second display panel 120 is an AMOLED-like display panel. In this case, the pixel circuit of the AMOLED-like display panel has a capacitance-free structure, that is, the pixel circuit only includes a switching device and does not include storage capacitors and other elements. 6 is a cross-sectional view of an AMOLED-like display panel in an embodiment. Referring to FIG. 6, this type of AMOLED display panel includes a substrate 610 and a pixel circuit 620 disposed on the substrate 610. A first electrode layer is provided on the pixel circuit 620. The first electrode layer includes a plurality of first electrodes 630. The first electrodes 630 correspond to the pixel circuits 620 one-to-one. The first electrode 630 here is an anode. The AMOLED-like display panel further includes a pixel defining layer 640, which is disposed on the first electrode 630. The pixel defining layer 640 has a plurality of openings, and a light emitting structure layer 650 is disposed in the openings to form a plurality of sub-pixels, and the sub-pixels correspond to the first electrodes 630 in one-to-one correspondence. A second electrode 660 is provided above the light emitting structure layer 650, and the second electrode 660 is a cathode, and the cathode is a surface electrode, that is, an entire surface electrode formed of an entire surface electrode material. The AMOLED-like display panel also includes scanning lines and data lines. Both the scan line and the data line are connected to the pixel circuit 620. The scan line controls the turning on and off of the pixel circuit 620. When the pixel circuit 620 is turned on, the data line provides a driving current to the first electrode 630 to control the sub-pixel to emit light.

In one embodiment, the substrate 610 may be a rigid substrate, such as a transparent substrate such as a glass substrate, a quartz substrate, or a plastic substrate; the substrate 610 may also be a flexible substrate, such as a PI film, etc., to improve the transparency of the device.

In an embodiment, the light emitting structure layer 650 may be an OLED (Organic Light-Emitting Diode, organic light emitting diode).

In an embodiment, the first electrode 630 may be round, oval, or dumbbell-shaped, as shown in FIG. 5. By setting the first electrode 630 to be circular, elliptical or dumbbell-shaped, the diffraction effect can also be weakened. In an embodiment, the shape of the pixel opening in the pixel definition layer 640 is a circle, an ellipse, or a dumbbell. For details, refer to FIG. 5, so that the diffraction effect can also be weakened. In an embodiment, the signal lines such as the scan line and the data line may use the wave-shaped traces shown in FIG. 4 to achieve the effect of improving diffraction.

FIG. 7 is a circuit diagram of the pixel circuit 620 in an embodiment. Referring to FIG. 7, unlike the pixel circuit of a conventional AMOLED display panel, the pixel circuit 620 only includes a switching device, and does not include storage capacitors and other elements, thereby forming a capacitor-less structure. In this embodiment, the pixel circuit includes a switching device. The switching device includes a first terminal 2a, a second terminal 2b, and a control terminal 2c. For details, see the subsequent detailed introduction. The scan line is connected to the control terminal 2c of the switching device, the data line is connected to the first terminal 2a of the switching device, and the first electrode 3 is connected to the second terminal 2b of the switching device. As shown in Figure 7. The pixel circuit 620 includes a switching device, and the switching device is provided in a one-to-one correspondence with the first power 630, the data line is connected to the first terminal 2a of the switching device, the scanning line is connected to the control terminal 2c of the switching device, and the multiple sub-pixels and the multiple switches The devices have a one-to-one correspondence, that is, one sub-pixel corresponds to one switching device. In the above pixel circuit 620, the first end 2a of the switching device is connected by a data line, and the control terminal 2c of the switching device is connected by a scanning line, which can reduce the number of switching devices in the pixel circuit 620 to one, greatly reducing the load current and data of the scanning line The load current of the line.

The scanning line in the above display panel controls the opening and closing of the pixel circuit 620, and only needs to provide the switching voltage required by the switching device in the pixel circuit 620, and does not need to input the current of the light emitting structure (OLED), which greatly reduces the load current of the scanning line. The scanning line can be made of transparent materials such as ITO. Moreover, when the pixel circuit 620 is turned on, the data line provides a driving current to the anode to control the sub-pixel to emit light. The data line only needs to supply the driving current of one sub-pixel at a time, and the load of the data line is also small. Therefore, the data line can also use transparent materials such as ITO, thereby improving the light transmittance of the display screen. The surface electrodes (cathode) are shared by multiple sub-pixels, and the current of a row of sub-pixels is provided by the entire surface of the cathode at each moment. It does not require negative photoresist to separate the cathode.

8 is a top view of a display screen in another embodiment. The display screen also has adjacent first display area AA1 and second display area AA2. The display screen includes a first display panel, a second display panel, and a conductive connection line 310. Specifically, the first display panel is an AMOLED display panel, which is provided with a reference voltage layer (ELVSS) 320. The reference voltage layer is an entire structure covering the entire first display area. The reference voltage layer is connected to the negative electrode of the first display panel, thereby forming a power supply circuit. The conductive connection line 310 is placed at the boundary between the frame area and the second display area AA2, or is directly disposed in the frame area. The conductive connection line 310 is connected to the reference voltage layer to wrap the second display panel, so that the second display panel and the first display panel are at the same level, and the interference of the second display panel on the first display panel can be minimized.

In an embodiment, the reference voltage layer may be ITO or other metal materials, and usually has a negative level value, such as about -3V. In one embodiment, the second display panel is a PMOLED display panel, which does not require this voltage, so it will avoid the second display area AA2 during design, so as to form an entire ELVSS level layer in the first display area AA1 . However, some PMOLED display panels are driven by progressive scanning, and the scanning uses high voltage signals, which may interfere with the AMOLED scanning. Therefore, a conductive connection line 310 is provided at the border area or the border between the border area and the second display area AA2, and is connected to the reference voltage layer 320 to wrap the entire PMOLED display panel, thereby minimizing the second display panel ’s impact on the first display panel interference. The conductive connection line 310 may also be ITO or other metals, and may be prepared in the same process step as the reference voltage layer 320.

The above display screen can directly wrap the second display panel by using the reference voltage layer 320 and the additional conductive connection line 310 in the first display panel, so that the second display panel and the first display panel are at the same level. Minimize the interference of the second display panel on the first display panel.

An embodiment of the present application further provides a display terminal. 9 is a schematic structural diagram of a display terminal in an embodiment. The display terminal includes a device body 910 and a display screen 920. The display screen 920 is provided on the device body 910 and connected to the device body 910. The display screen 920 may use the display screen in any of the foregoing embodiments to display static or dynamic images.

10 is a schematic structural diagram of a device body 910 in an embodiment. In this embodiment, the device body 910 may be provided with a slotted area 912 and a non-slotted area 914. Photosensitive devices such as a camera 930 and a light sensor may be provided in the slotted area 912. At this time, the display panel of the second display area of the display screen 920 corresponds to and fits the slotted area 912, so that the above-mentioned photosensitive devices such as the camera 930 and the light sensor can pass through the second display area to the outside Light collection and other operations. Since the first display panel and the second display panel of the display screen 920 are provided with an isolation structure for electric field isolation, thereby ensuring that the first display panel and the second display panel do not interfere with each other when working at the same time, thereby ensuring the display screen 920 Of the normal display.

In an embodiment, since the display panel in the second display area can effectively improve the diffraction phenomenon caused by the external light transmitting through the second display area, the quality of the image captured by the camera 930 on the display terminal can be effectively improved to avoid the diffraction As a result, the captured image is distorted, and at the same time, the accuracy and sensitivity of the light sensor in sensing external light can also be improved.

The above display terminal may be a digital device such as a mobile phone, a tablet, a palmtop computer, an ipod and so on.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To simplify the description, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered within the scope of this description.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all fall within the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

A display screen, wherein the display screen has adjacent first display areas and second display areas; both the first display area and the second display area are used to display dynamic or static pictures; the display The screen includes:

A first display panel, set in the first display area;

A second display panel provided in the second display area; and

An isolation structure formed between the first display panel and the second display panel and used to isolate the electric field between the first display panel and the second display panel.
The display screen according to claim 1, wherein the first display panel includes a first conductive trace layer; the second display panel includes a second conductive trace layer,

The isolation structure is located between the first conductive trace layer and the second conductive trace layer, and is located in the same layer as the first conductive trace layer or the second conductive trace layer; or,

The first conductive trace layer, the second conductive trace layer and the isolation structure are on the same layer.
The display screen according to claim 2, wherein the isolation structure is formed in the same process step as the first conductive trace layer or the second conductive trace layer so that the isolation structure and the first A conductive trace layer or the second conductive trace layer is located on the same layer.
The display screen according to claim 1, wherein the first display panel includes a first conductive trace layer; the second display panel includes a second conductive trace layer; the isolation structure is located on the first conductive Between the trace layer and the second conductive trace layer.
The display screen according to claim 4, wherein the isolation structure, the first conductive trace layer and the second conductive trace layer are formed in the same process step so that the isolation structure, the first A conductive trace layer and the second conductive trace layer are on the same layer.
The display screen according to claim 2, wherein the conductive material of the isolation structure is one or more of molybdenum aluminum molybdenum, indium tin oxide, titanium aluminum titanium, silver and aluminum.
The display screen according to claim 2, wherein the second conductive trace is a wavy trace; in the extending direction of the wavy trace, the width of the wavy trace changes continuously or intermittently.
The display screen according to claim 7, wherein the first conductive trace is a wavy trace; and in the extending direction of the wavy trace, the width of the wavy trace changes continuously or intermittently.
The display screen according to claim 1, wherein the thickness of the isolation structure is 0.1 nm to 10000 nm.
The display screen according to claim 1, wherein the isolation structure is connected to a ground of the display screen.
The display screen according to claim 1, wherein the display screen further comprises a flexible circuit board; the flexible circuit board is connected between the isolation structure and the ground of the display screen.
The display screen according to claim 1, wherein the light transmittance of each structural film material of the second display panel is greater than 90%.
The display screen according to claim 1, wherein the second display panel is a PMOLED display panel; the second display panel includes a substrate and a plurality of wavy first electrodes formed on the substrate; the The first electrode is a cathode or an anode; a plurality of the first electrodes extend in parallel in the same direction, and adjacent first electrodes have a pitch; in the extending direction of the first electrode, the width of the first electrode Continuously changing or intermittently changing, and the spacing continuously or intermittently changing.
The display screen according to claim 1, wherein the sub-pixel shape in the second display panel is a circle, an ellipse, or a dumbbell.
The display screen according to claim 1, wherein the second display panel is an AMOLED display panel or an AMOLED-like display panel; the second display panel includes a substrate and a plurality of mutually independent first substrates formed on the substrate One electrode; the first electrode is an anode; each first electrode corresponds to a light emitting structure; the first electrode is circular, elliptical or dumbbell-shaped.
The display screen according to claim 1, wherein the shape of the sub-pixels in the first display panel is a circle, an ellipse, or a dumbbell.
A display screen having adjacent first display areas and second display areas; both the first display area and the second display area are used to display dynamic or static pictures; wherein, the display screen includes:

A first display panel is provided in the first display area; the first display panel is an AMOLED display panel;

A second display panel provided in the second display area; and

The first display panel is provided with a reference voltage layer covering the first display area; the reference voltage layer is connected to the cathode of the first display panel; the display screen further includes a frame area or a A conductive connection line at the junction of the frame area and the second display area; the conductive connection line is connected to the reference voltage layer to wrap the second display panel.
A display terminal, including:

Equipment body with device area;

The display screen according to any one of claims 1 to 17, covered on the device body;

The device area is located below the second display panel, and the device area is provided with a photosensitive device that collects light through the second display panel.