Display panel, display screen and display terminal

Abstract

The present application relates to a display panel, a display screen, and a terminal device. The display panel includes: a substrate, on which a first pixel electrode is included; a pixel definition layer formed on the first pixel electrode, the pixel definition layer having a plurality of pixel openings to expose the surface of the first pixel electrode; and an isolation column formed on the pixel definition layer; the isolation column includes a plurality of first-type isolation columns; in the extending direction of the first-type isolation column, the width of the first-type isolation column continuously changes or discontinuously changes, the extending direction being parallel to the substrate; the width is the dimension of the projection of the first-type isolation column formed on the substrate in a direction perpendicular to the extending direction. The above display panel has a good effect of improving diffraction.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel, a display screen and a display terminal. Background Art

[0002] With the rapid development of electronic devices, users have higher and higher requirements for screen-to-body ratio, making full-screen display of electronic devices receive more and more attention from the industry. Traditional electronic devices such as mobile phones and tablets need to integrate front cameras, receivers, and infrared sensing elements, so full-screen display of electronic devices can be achieved by notching the display screen and setting a transparent display screen in the notched area. However, the inventors found that when photosensitive elements such as cameras are set below the display panel, the images taken are often blurred to a great extent. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel, a display screen and a display terminal to address the problem that when a camera is set below a display panel in traditional electronic devices, the images taken are often blurred to a great extent.

[0004] A display panel, comprising:

[0005] A substrate, wherein the substrate includes a first pixel electrode;

[0006] a pixel definition layer formed on the first pixel electrode, the pixel definition layer having a plurality of pixel openings to expose a surface of the first pixel electrode; and

[0007] An isolation column is formed on the pixel definition layer; the isolation column includes a plurality of first-type isolation columns; in an extension direction of the first-type isolation column, the width of the first-type isolation column changes continuously or discontinuously, and the extension direction is parallel to the substrate; the width is the dimension of the projection of the first-type isolation column formed on the substrate in a direction perpendicular to the extension direction.

[0008] The display panel is provided with a first type of spacer on the pixel definition layer. In the extension direction of the first type of spacer, the width of the first type of spacer changes continuously or discontinuously, and the width refers to the size of the projection formed by the first type of spacer on the substrate perpendicular to the extension direction. Therefore, when external light passes through the first type of spacer, the positions of the diffraction fringes generated at different maximum width positions are different, so that the diffraction is not obvious, achieving the effect of improving the diffraction, and then ensuring that when the camera is set below the display panel, the image obtained by taking a photo has a higher definition.

[0009] In one embodiment, a plurality of the first type of isolation posts are arranged in parallel on the substrate.

[0010] In one embodiment, it further includes a second type of isolation post; the second type of isolation post is strip-shaped; the first type of isolation post and the second type of isolation post are arranged alternately.

[0011] In one embodiment, the width of the first type of isolation post is within 5 micrometers to 100 micrometers.

[0012] In one embodiment, the first type of isolation post has a bottom surface in contact with the pixel definition layer and a top surface opposite to the bottom surface; in a direction perpendicular to the extension direction, the width of the top surface is greater than or equal to the width of the bottom surface; the top surface has a varying width along the extension direction of the first type of isolation post.

[0013] In one embodiment, at least one of the two side edges of the top surface of the first type of isolation post facing the sub-pixel region is non-linear.

[0014] In one embodiment, the bottom surface is parallel to the top surface; the projection of the top surface on the substrate covers the projection of the bottom surface on the substrate.

[0015] In one embodiment, the first type of isolation post further includes two side surfaces connected to the top surface and the bottom surface; the shape of the projection of each side surface on the substrate coincides with the projection of the side edge on the connected top surface on the substrate.

[0016] In one embodiment, the non-linear shape includes at least one of a broken line segment, an arc, a semi-circle, and a wavy line.

[0017] In one embodiment, the non-linear shape is formed by connecting the edges of a plurality of semi-circles with the same opening direction; the opening of the semi-circle faces the sub-pixel region.

[0018] In one embodiment, the projection of the pixel opening on the substrate is formed by one graphic unit or two or more connected graphic units; the graphic unit is circular, elliptical, or dumbbell-shaped.

[0019] In one embodiment, the gap between adjacent isolation posts defines the shape of the second pixel electrode of the display panel, and the shape of the second pixel electrode is complementary to the shape of the top surface of the isolation post.

[0020] In one embodiment, the first pixel electrode is wavy; the extension direction of the first pixel electrode is perpendicular to the extension direction of the second pixel electrode.

[0021] In one embodiment, the display panel is a PMOLED display panel.

[0022] In one embodiment, the light transmittance of each structural film layer material is greater than 90%.

[0023] In one embodiment, the material of the conductive trace of the display panel is indium tin oxide, indium zinc oxide, indium tin oxide doped with silver, or indium zinc oxide doped with silver.

[0024] A display screen has at least one display area; the at least one display area includes a first display area, and a photosensitive device can be arranged below the first display area;

[0025] Wherein, a display panel as described in any one of the foregoing embodiment items is arranged in the first display area, and each display area in the at least one display area is used to display dynamic or static pictures.

[0026] In one embodiment, the display panel arranged in the second display area is an AMOLED display panel.

[0027] A display terminal includes:

[0028] A device body having a device area;

[0029] The display screen as described in any one of the foregoing embodiments covers the device body;

[0030] Wherein, the device area is located below the first display area, and a photosensitive device for collecting light through the first display area is arranged in the device area.

[0031] In one embodiment, the device area is a grooved area; and the photosensitive device includes a camera and / or a light sensor. Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of a display panel in an embodiment;

[0033] Figure 2 It is a top view schematic diagram of a first type of spacer in an embodiment;

[0034] Figure 3 It is a top view of a traditional spacer;

[0035] Figure 4 It is a top view schematic diagram of a first type of spacer in another embodiment;

[0036] Figure 5 It is a schematic diagram of a pixel definition layer in an embodiment;

[0037] Figure 6Schematic diagram of the first type of isolation posts and the second type of isolation posts arranged at intervals in an embodiment;

[0038] Figure 7 Schematic diagram of the structure of a display screen in an embodiment;

[0039] Figure 8 Schematic diagram of the structure of a display terminal in an embodiment;

[0040] Figure 9 Schematic diagram of the structure of a device body in an embodiment. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" etc. are based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined by "first" and "second" may explicitly or implicitly include one or more of such features.

[0043] As described in the background art, when a photosensitive device such as a camera is arranged under a transparent display panel, the photos taken are blurred. The inventor's research found that the reason for this problem is that since there are conductive traces in the display screen body of the electronic device, when external light passes through these conductive traces, a relatively complex diffraction intensity distribution will be caused, resulting in diffraction fringes, which will further affect the normal operation of photosensitive devices such as cameras. For example, when a camera located under the transparent display area works, the external light will undergo obvious diffraction after passing through the conductive material traces in the display screen, resulting in a problem of distortion in the picture taken by the camera.

[0044] To solve the above problems, an embodiment of the present application provides a display panel, which can well solve the above problems. The display panel in one embodiment includes a substrate, a pixel definition layer, and isolation pillars. Among them, a first pixel electrode is included on the substrate. The first pixel electrode can be an anode. The pixel definition layer is formed on the first pixel electrode and has a plurality of pixel openings to expose the surface of the first pixel electrode. The isolation pillars are used to isolate the cathodes of adjacent two rows or two columns of sub-pixels and play a role in defining the shapes of the cathodes of adjacent two rows or two columns of sub-pixels.

[0045] In this embodiment, the isolation pillars include the first type of isolation pillars. In the extending direction of the first type of isolation pillars, the width of the first type of isolation pillars changes continuously or discontinuously. The extending direction of the first type of isolation pillars is parallel to the substrate, that is, the length direction of the first type of isolation pillars, and its width direction is perpendicular to the length direction. The width of the first type of isolation pillars refers to the dimension of the projection formed on the substrate in the direction perpendicular to the extending direction. Since the first type of isolation pillars is a three-dimensional structure, in its cross-section perpendicular to the substrate (i.e., the longitudinal section), different widths may exist at different height positions. Therefore, the width of the first type of isolation pillars referred to in this embodiment corresponds to the maximum width in the longitudinal section.

[0046] Since diffraction will occur when external light passes through the isolation pillars. Diffraction is a physical phenomenon in which light waves deviate from their original straight-line propagation when encountering obstacles. Specifically, light waves will undergo varying degrees of bending and spreading after passing through obstacles such as slits, small holes, or discs. When external light passes through the isolation pillars, the isolation pillars act as obstacles, causing diffraction to occur when the light passes through, and the positions of the diffraction fringes are determined by the maximum width at each location. Therefore, it is only necessary to ensure that the first type of isolation pillars has a varying maximum width in its extending direction. The continuous change in width mentioned in this embodiment means that at any two adjacent positions on the first type of isolation pillars, the widths are different. The discontinuous change in width means that in some regions on the first type of isolation pillars, the widths of two adjacent positions are the same, while in some regions, the widths of two adjacent positions are different.

[0047] The above display panel forms the first type of isolation pillars on the pixel definition layer. In the extending direction of the first type of isolation pillars, the width of the first type of isolation pillars changes continuously or discontinuously. Therefore, when external light passes through the first type of isolation pillars, the positions of the diffraction fringes generated at different maximum width positions are different, so that the diffraction is less obvious, achieving the effect of improving diffraction.

[0048] Figure 1 It is a schematic structural diagram of the display panel in one embodiment. Refer to Figure 1 , the display panel includes a substrate 110, a first pixel electrode 120, a pixel definition layer 130, and isolation pillars 140.

[0049] The substrate 110 can be a rigid substrate or a flexible substrate. For example, the rigid substrate can be a transparent substrate such as a glass substrate, a quartz substrate, or a plastic substrate, and the flexible substrate can be a flexible PI substrate or the like.

[0050] The first pixel electrode 120 is formed on the substrate 110. There are multiple first pixel electrodes 120, and the multiple first pixel electrodes 120 are regularly arranged on the substrate 110. In this embodiment, the side of the substrate 110 where the first pixel electrode 120 is formed is regarded as the upper side, and the opposite side is regarded as the lower side. In one embodiment, the display panel is a PMOLED (Passive Matrix OLED) display panel. In one embodiment, in order to improve the light transmittance of the display panel, each conductive trace of the display panel is made of a transparent conductive metal oxide. For example, the first pixel electrode 120 is made of a transparent conductive metal oxide. For example, the first pixel electrode 120 can be made of ITO (indium tin oxide) or indium zinc oxide (IZO). Further, in order to reduce the resistance of each conductive trace on the basis of ensuring high light transmittance, the first pixel electrode 120 can also be made of materials such as aluminum-doped zinc oxide, silver-doped ITO, or silver-doped IZO.

[0051] In this embodiment, the above display panel further includes a light-emitting structure layer 150 formed on the first pixel electrode and a second pixel electrode 160 formed on the light-emitting structure layer 150. In one embodiment, in order to improve the light transmittance of the display panel, for example, the second pixel electrode 160 is made of a transparent conductive metal oxide. For example, the second pixel electrode 160 can be made of ITO (indium tin oxide) or indium zinc oxide (IZO). Further, in order to reduce the resistance of each conductive trace on the basis of ensuring high light transmittance, the second pixel electrode 160 can also be made of materials such as aluminum-doped zinc oxide, silver-doped ITO, or silver-doped IZO. In one embodiment, the first pixel electrode is an anode and the second pixel electrode is a cathode.

[0052] The pixel definition layer 130 is formed on the first pixel electrode 120. The pixel definition layer 130 has multiple pixel openings, and each pixel opening is used to define a sub-pixel region. The isolation column 140 is formed on the pixel definition layer 130 and is disposed between adjacent first pixel electrodes 120. The isolation column 140 is used to separate the cathodes of adjacent two sub-pixel regions, such as Figure 1As shown. The surface of the isolation pillar 140 is higher than the surface height of the adjacent area. Therefore, when preparing the cathode on the surface of the display panel, the isolation cathode 160b formed above the isolation pillar 140 is disconnected from the cathode on the adjacent pixel area, thereby realizing the isolation of the cathodes of adjacent sub-pixel areas and ultimately ensuring that each sub-pixel area can be normally driven. That is, the shape of the cathode is defined by the gap between the isolation pillars and is complementary to the top surface shape of the isolation pillars to form a whole surface structure.

[0053] In one embodiment, the isolation pillar 140 includes a first type of isolation pillar. In the extending direction of the first type of isolation pillar, the width of the first type of isolation pillar changes continuously or discontinuously. Figure 2 It is a schematic structural diagram of the first type of isolation pillar in one embodiment. In the extending direction of the first type of isolation pillar, the width of the first type of isolation pillar changes continuously. When external light passes through the first type of isolation pillar, the positions of the diffraction fringes generated at different maximum width positions are different, so that the diffraction is not obvious, achieving the effect of improving diffraction.

[0054] Traditional isolation pillars are usually strip-shaped, and their top view is as Figure 3 shown, and its cross-sectional view can be seen in Figure 1 . The longitudinal section of the traditional isolation pillar (that is, the section perpendicular to the substrate 110) is an inverted trapezoidal structure. Specifically, it has a bottom surface in contact with the substrate 110 and a top surface opposite to the bottom surface. The isolation pillar tapers from the top surface to the bottom surface, so that the maximum width of the isolation pillar appears at the top surface. The top surface is rectangular and has a fixed width along the extending direction (that is, the widths at all positions in the extending direction are the same, and the extending direction is parallel to the direction of the substrate 110). The positions of the diffraction fringes generated at the same width positions on the isolation pillar are the same, so that the diffraction effect is more obvious, ultimately affecting the normal operation of the photosensitive element located below it. For example, it will cause the picture captured by the camera to be distorted.

[0055] For the display panel in the above embodiment of the present application, by adopting the first type of isolation pillar whose width changes continuously or discontinuously in the extending direction, the positions of the diffraction fringes generated at different maximum width positions are different, which can destroy the complex diffraction intensity distribution brought by the traditional isolation pillar, so that the diffraction is relatively less obvious, achieving the effect of improving diffraction.

[0056] It can be understood that Figure 1 it is only an example of the display panel in this embodiment and does not constitute the only limitation on the structure of the display panel.

[0057] In one embodiment, there may be a plurality of first-type isolation columns in the display panel. A plurality of first-type isolation columns are arranged in parallel on the substrate 110. The width of the first-type isolation column is within a range of 5 microns to 100 microns. The minimum width of the first-type isolation column depends on the preparation process. On the premise that the preparation process can be realized, the width of the first-type isolation column can be less than or equal to 5 microns, or even smaller. The spacing between two adjacent first-type isolation columns depends on the size design requirements of the cathodes of two adjacent sub-pixel areas. By arranging a plurality of first-type isolation columns in parallel on the substrate 110, the diffraction effect of various parts of the display panel can be uniformly improved, thereby achieving the purpose of improving the diffraction effect of the display panel as a whole.

[0058] In one embodiment, the first type isolation column also includes a bottom surface 142 in contact with the substrate 110 and a top surface 144 opposite to the bottom surface 142. Figure 1 As shown. In this embodiment, in the longitudinal section of the first type isolation column, the width of the top surface 144 is greater than or equal to the width of the bottom surface 142. At this time, in the same longitudinal section, the maximum width of the first type isolation column is located at the top surface 144, that is, the first type isolation column is gradually reduced from the top surface 144 to the bottom surface 142 in the height direction. Therefore, the top surface 144 has a continuously changing width or a discontinuously changing width along the extension direction.

[0059] In one embodiment, the bottom surface 142 of the first type of isolation column is arranged parallel to the top surface 144, and on the same cross section, the width of the bottom surface 142 is equal to or less than the width of the top surface 144, so that the entire first type of isolation column presents a structure that is larger at the top and smaller at the bottom. In one embodiment, the bottom surface 142 has a shape similar to the top surface 144, thereby ensuring that on any plane parallel to the substrate 110 (that is, at different height positions of the first type of isolation column), the first type of isolation column has a continuously changing width or a discontinuously changing width in the extension direction, thereby ensuring that light will not produce a relatively obvious diffraction effect after passing through the first type of isolation column.

[0060] In one embodiment, the first type of isolation column has a periodically varying width along its own extension direction. That is, the width variation of the first type of isolation column is not an irregular variation, but a regular periodic variation, thereby reducing the difficulty of the entire preparation process. In one embodiment, a width variation period of the first type of isolation column corresponds to a sub-pixel area. Of the two side edges of the edge area on the top surface of the first type of isolation column facing each sub-pixel area, at least one side edge adopts a non-linear shape. The non-linear shape can be composed of at least one of a broken line, an arc, a semicircle, and a wave shape.

[0061] In one embodiment, the non-linear shape is formed by connecting the edges of a plurality of semicircular openings with the same opening direction. The semicircular openings are arranged toward the sub-pixel region, such asFigure 2 As shown, to reduce the impact on the pixels and ensure the pixel aperture ratio while ensuring that its brightness can meet the requirements. In this embodiment, the diameter of the semi - circle depends on the size of the pixel. The larger the pixel, the larger the diameter of the semi - circle; the smaller the pixel, the smaller the diameter of the semi - circle. The minimum width of the top surface is determined by the process limit ability. Using a non - linear shape of a semi - circle can make the diffraction fringes not spread in one direction like traditional long - strip isolation pillars, but spread 360 degrees, thus making the diffraction extremely unobvious and having a better diffraction improvement effect. And setting the edge area corresponding to the pixel area of the top surface as a semi - circle can have the least impact on the pixels, with a higher pixel aperture ratio and higher brightness.

[0062] Figure 4 It is a top view of the first - type isolation pillar 140a in an embodiment, that is, a schematic diagram of its top - surface structure. At this time, the non - linear shape is formed by connecting the edges of multiple broken - line segments, so as to ensure that the first - type isolation pillar has a varying width along the extension direction to improve the diffraction effect. In this embodiment, the opening directions of the broken - line segments are set towards the sub - pixel areas to reduce the impact on the pixels and ensure that the pixel aperture ratio is ensured while its brightness can meet the requirements. In other embodiments, the broken - line segments corresponding to each pixel area can also be composed of more broken - line segments, thus forming a serrated edge.

[0063] In an embodiment, the side of the non - linear shape can also adopt shapes such as an ellipse, or be composed of an irregular shape formed by alternating line segments and arcs, as long as it is ensured that the first - type isolation pillar has a varying width along the length direction, so as to ensure that it can destroy the slit diffraction brought by traditional strip - shaped isolation pillars and achieve the effect of improving diffraction.

[0064] In an embodiment, the first - type isolation pillar further includes two side surfaces 146 connected to the bottom surface 142 and the top surface 144. The projection of each side surface 146 on the substrate 110 coincides with the projection of the side edge of the top surface 144 on the substrate 110. That is, the shape of the side surface 146 depends on the shape of the side edge of the top surface 144 and the shape of the side edge of the bottom surface 142. For example, when the side edge of the top surface 144 is a non - linear shape composed of broken - line segments, the side surface 146 is formed by connecting multiple planes at a certain angle. When the side edge of the top surface 144 is a non - linear shape composed of a semi - circle, the side surface 146 is formed by connecting multiple arc surfaces, and the radius of curvature of the arc surface is the same as the diameter of the semi - circle of the side edge of the top surface 144.

[0065] In an embodiment, the edges of each pixel opening in the pixel - definition layer 130 are all curves and are not parallel to each other. Specifically, the projection of the pixel opening on the substrate 110 is formed by connecting one graphic unit or two or more graphic units. The graphic unit is a circle, an ellipse or a dumbbell shape. Figure 5FIG. 130 is a schematic structural view of a pixel definition layer 130 in an embodiment, on which a dumbbell-shaped pixel opening 132 is formed.

[0066] In one embodiment, the isolation pillars further include a second type of isolation pillar. The second type of isolation pillar is strip-shaped, that is, the traditional isolation pillar structure. The top surface of the second type of isolation pillar is rectangular, and its longitudinal section is an inverted trapezoidal structure. The first type of isolation pillar and the second type of isolation pillar are arranged alternately, as Figure 6 shown. Wherein, 140a represents the first type of isolation pillar, and 140b represents the second type of isolation pillar. By arranging the two types of isolation pillars alternately, the diffraction effect of the entire display panel can be made consistent everywhere.

[0067] In one embodiment, all the isolation pillars in the above display panel are of the first type. The slit diffraction fringes generated by each isolation pillar at different widths have different positions, so that the diffraction is not obvious, achieving a better effect of improving diffraction.

[0068] In one embodiment, the above display panel can be a transparent or transflective display panel. The transparency of the display panel can be achieved by using materials with better light transmittance for each layer. For example, materials with a light transmittance greater than 90% are used for each layer, so that the light transmittance of the entire display panel can be above 70%. Further, materials with a light transmittance greater than 95% are used for each structural film layer to further improve the light transmittance of the display panel, and even make the light transmittance of the entire display panel above 80%. Specifically, conductive traces such as cathodes and anodes can be set as ITO, IZO, Ag+ITO or Ag+IZO, etc., the insulating layer material is preferably SiO2, SiN x and Al2O3, etc., and the pixel definition layer 140 is made of a highly transparent material.

[0069] It can be understood that the transparency of the display panel can also be achieved by other technical means, and the above structures of the display panel are all applicable. When the transparent or transflective display panel is in the working state, it can display the picture normally, and when the display panel is in other functional requirement states, external light can pass through the display panel and irradiate the photosensitive device placed under the display panel, etc.

[0070] An embodiment of the present application further provides a display screen. The display screen has at least one display area. Each display area is used to display dynamic or static images. At least one display area includes a first display area. The first display area is provided with a display panel as mentioned in any of the foregoing embodiments. A photosensitive device may be provided below the first display area. Since the first display area adopts the display panel in the foregoing embodiment, when light passes through this display area, no obvious diffraction effect will occur, so as to ensure that the photosensitive device located below the first display area can work properly. It can be understood that when the photosensitive device is not working, the first display area can normally display dynamic or static images, and when the photosensitive device is working, the first display area changes with the change of the display content of the overall display screen, such as displaying an external image being photographed, or the first display area can also be in a non-display state, so as to further ensure that the photosensitive device can normally collect light through the display panel.

[0071] Figure 7 FIG. 4 is a schematic structural diagram of a display screen in an embodiment. The display screen includes a first display area 910 and a second display area 920. Among them, the light transmittance of the first display area 910 is greater than that of the second display area 920. A photosensitive device 930 may be provided below the first display area 910. The first display area 910 is provided with a display panel as mentioned in any of the foregoing embodiments. Both the first display area 910 and the second display area 920 are used to display static or dynamic images. Since the first display area 910 adopts the display panel in the foregoing embodiment, when light passes through this display area, no obvious diffraction effect will occur, so as to ensure that the photosensitive device 930 located below the first display area 910 can work properly. It can be understood that when the photosensitive device 930 is not working, the first display area 910 can normally display dynamic or static images, and when the photosensitive device 930 is working, it can be in a non-display state, so as to ensure that the photosensitive device 930 can normally collect light through the display panel. In other embodiments, the light transmittances of the first display area 910 and the second display area 920 may also be the same, so that the entire display panel has good light transmittance uniformity and ensures good display effect of the display panel.

[0072] In one embodiment, the display panel provided in the first display area 910 is a PMOLED display panel or an AMOLED display panel, and the display panel provided in the second display area 920 is an AMOLED display panel, so as to form a full-screen display composed of a PMOLED display panel and an AMOLED display panel.

[0073] Another embodiment of the present application further provides a display terminal. Figure 8A schematic structural diagram of a display terminal in an embodiment, the display terminal includes a device body 810 and a display screen 820. The display screen 820 is disposed on the device body 810 and is interconnected with the device body 810. Among them, the display screen 820 can adopt the display screen in any of the foregoing embodiments to display static or dynamic images.

[0074] Figure 9 A schematic structural diagram of the device body 810 in an embodiment. In this embodiment, a slotted area 812 and a non-slotted area 814 may be provided on the device body 810. Photosensitive devices such as a camera 930 and a light sensor may be provided in the slotted area 812. At this time, the display panel of the first display area of the display screen 820 is attached to the non-slotted area 814 so that photosensitive devices such as the camera 930 and the light sensor can collect external light through the first display area. Since the display panel in the first display area can effectively improve the diffraction phenomenon generated by external light transmitting through the first display area, the quality of the image captured by the camera 930 on the display device can be effectively improved, avoiding image distortion caused by diffraction, and at the same time, the accuracy and sensitivity of the light sensor to sense external light can also be improved.

[0075] The above electronic device can be a digital device such as a mobile phone, a tablet computer, a palm computer, an iPod, etc.

[0076] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0077] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A display panel, characterized in that, Including: a substrate, on which a first pixel electrode is included; a pixel definition layer formed on the first pixel electrode, the pixel definition layer having a plurality of pixel openings to expose the surface of the first pixel electrode; and an isolation pillar formed on the pixel definition layer; the isolation pillar includes a plurality of first-type isolation pillars; in the extending direction of the first-type isolation pillar, the width of the first-type isolation pillar changes continuously or discontinuously, and the extending direction is parallel to the substrate; the width is the size of the projection of the first-type isolation pillar formed on the substrate in a direction perpendicular to the extending direction; wherein, the display panel further includes a light-emitting structure layer formed on the first pixel electrode and a second pixel electrode formed on the light-emitting structure layer; the isolation pillar is used to isolate the second pixel electrodes of adjacent two rows or two columns of sub-pixels and plays a role in defining the shape of the second pixel electrodes of adjacent two rows or two columns of sub-pixels; the isolation pillar further includes a second-type isolation pillar; the second-type isolation pillar is strip-shaped; the first-type isolation pillars and the second-type isolation pillars are arranged alternately.

2. The display panel according to claim 1, wherein a plurality of the first-type isolation pillars are arranged in parallel on the substrate, the display panel is a PMOLED display panel, and the light transmittance of each structural film layer material is greater than 90%; and / or the material of the conductive trace of the display panel is indium tin oxide, indium zinc oxide, indium tin oxide doped with silver, or indium zinc oxide doped with silver.

3. The display panel according to claim 1, characterized in that, the shape of the second pixel electrode is complementary to the top surface shape of the isolation pillar.

4. The display panel according to any one of claims 1 to 3, characterized in that the first-type isolation pillar has a bottom surface in contact with the pixel definition layer and a top surface opposite to the bottom surface; in a direction perpendicular to the extending direction, the width of the top surface is greater than or equal to the width of the bottom surface; the top surface has a varying width along the extending direction of the first-type isolation pillar.

5. The display panel according to claim 4, wherein at least one of the two side edges of the top surface of the first-type isolation pillar facing the sub-pixel region is a non-linear shape; the non-linear shape includes at least one of a broken line segment, an arc, a semi-circle, and a wavy shape.

6. The display panel according to claim 5, wherein, the bottom surface is arranged parallel to the top surface; the shape of the bottom surface is similar to the shape of the top surface; and / or the first-type isolation pillar further includes two side surfaces connected to the top surface and the bottom surface; the shape of the projection of each side surface on the substrate coincides with the projection of the side edge on the connected top surface on the substrate.

7. The display panel according to claim 6, wherein the non-linear shape is formed by connecting the edges of a plurality of semi-circles with the same opening direction; the opening of the semi-circle faces the sub-pixel region; the projection of the pixel opening on the substrate is formed by one graphic unit or two or more graphic units connected together; the graphic unit is a circle, an ellipse, or a dumbbell shape; and / or the first pixel electrode is wavy; the extending direction of the first pixel electrode is perpendicular to the extending direction of the second pixel electrode.

8. A display screen, characterized in that, having at least one display area; the at least one display area includes a first display area, and a photosensitive device can be arranged below the first display area; Among them, a display panel as described in any one of claims 1 to 7 is provided in the first display area, and each display area in the at least one display area is used to display dynamic or static pictures.

9. The display screen according to claim 8, characterized in that, The at least one display area further includes a second display area; the display panel provided in the first display area is a PMOLED display panel or an AMOLED display panel, and the display panel provided in the second display area is an AMOLED display panel.

10. A display terminal, characterized in that, Comprising: A device body having a device area; A display screen as described in claim 8 or 9, covering the device body; Wherein, the device area is located below the first display area, and a photosensitive device for collecting light through the first display area is provided in the device area.

Images