A display panel and a manufacturing method thereof, and a display device

Abstract

The present application provides a display panel and a manufacturing method thereof, comprising: a first display area and a second display area, the second display area comprising a transition area, the display panel comprising: a substrate and a color resist layer, the color resist layer comprising a first color resist unit located in the first display area and a second color resist unit located in the transition area, both of which have the same light-transmitting color, a first blocking structure is arranged around the first color resist unit, a second blocking structure is arranged around the second color resist unit, the height of the first blocking structure arranged in the first display area is higher than the height of the second blocking structure arranged in the transition area, so that the thickness difference between the first color resist unit arranged in the first display area and the second color resist unit arranged in the transition area can be reduced, and the color resist units arranged in the first display area and the transition area are uniform in thickness, and light passes through the color resist units with uniform thickness in different areas, thereby finally achieving uniform display of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] The current display technology field is mainly divided into liquid crystal display (LCD), organic light emitting display (OLED) and micro light emitting diode (Micro-LED) display. Different types of display panels can be applied in various fields. For example, the above three types of display panels can be applied in terminal devices.

[0003] With the rapid development of terminal devices, higher requirements are placed on the display of terminal devices, especially the demand for full-screen display. One of the research hotspots for the demand for full-screen display is the under-screen camera technology, that is, the image display is also realized in the area where the camera is set in the terminal device. However, there is currently a problem of uneven display in the area where the under-screen camera is set on the display panel. Summary of the invention

[0004] In view of this, an object of the present application is to provide a display panel and a manufacturing method thereof, and a display device, which can achieve uniform display of the display panel.

[0005] An embodiment of the present application provides a display panel, the display panel comprising: a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, the second display area comprises a transition area, the transition area at least partially surrounds the first display area; the display panel comprises:

[0006] substrate;

[0007] A color resist layer, located on one side of the substrate, the color resist layer comprising a first color resist unit located in the first display area and a second color resist unit located in the transition area, the first color resist unit and the second color resist unit having the same light transmission color;

[0008] A first blocking structure is provided around the first color resist unit, and a second blocking structure is provided around the second color resist unit. The first blocking structure is away from a side surface of the substrate by a distance d1, and the second blocking structure is away from a side surface of the substrate by a distance d2, and d1>d2.

[0009] An embodiment of the present application provides a method for manufacturing a display panel, wherein the display panel comprises: a first display area and a second display area, wherein the transmittance of the first display area is greater than the transmittance of the second display area, and the second display area comprises a transition area, wherein the transition area at least partially surrounds the first display area; the method comprises:

[0010] A first blocking structure and a second blocking structure are formed on the substrate, wherein the first blocking structure is disposed in the first display area, and the second blocking structure is disposed in the transition area, a distance d1 between a side surface of the first blocking structure away from the substrate and the substrate, and a distance d2 between a side surface of the second blocking structure away from the substrate and the substrate, and d1>d2;

[0011] A color resist layer is formed, wherein the color resist layer includes a first color resist unit located in the first display area and a second color resist unit located in the transition area, wherein the first color resist unit and the second color resist unit have the same light-transmitting color, the first blocking structure surrounds the first color resist unit, and the second blocking structure surrounds the second color resist unit.

[0012] An embodiment of the present application provides a display device, comprising a display panel as described in any one of the above embodiments.

[0013] The display panel provided by the embodiment of the present application includes: a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, the second display area includes a transition area, and the transition area at least partially surrounds the first display area, that is, the first display area is an area where a photosensitive device is set, and the transition area between the first display area and the second display area is adjacent, and the display panel includes: a substrate and a color resist layer, the color resist layer is located on one side of the substrate, that is, the color resist layer can be set on the substrate. The color resist layer includes a first color resist unit located in the first display area and a second color resist unit located in the transition area. The light-transmitting colors of the first color resist unit and the second color resist unit are the same. A first blocking structure is arranged around the first color resist unit, and a second blocking structure is arranged around the second color resist unit. The distance between the side surface of the first blocking structure away from the substrate and the substrate is d1, and the distance between the side surface of the second blocking structure away from the substrate and the substrate is d2, d1>d2, that is, the height of the first blocking structure arranged in the first display area is higher than the height of the second blocking structure arranged in the transition area, so that the thickness difference between the first color resist unit arranged in the first display area and the second color resist unit arranged in the transition area can be reduced, and the color resist units arranged in the first display area and the transition area are uniform in thickness. When light passes through the color resist units with uniform thickness in different areas, uniform display of the display panel is finally achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic cross-sectional structure diagram of a display panel is shown;

[0016] Figure 2 A schematic diagram of a top view structure of a display panel provided in an embodiment of the present application is shown;

[0017] Figure 3 The present application embodiment is shown along Figure 2 A schematic diagram of the cross-sectional structure in the BB direction is shown;

[0018] Figure 4 A partial top view structural schematic diagram of a display panel provided in an embodiment of the present application is shown;

[0019] Figure 5 A partial cross-sectional structure schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0020] Figure 6 A partial top view structural schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0021] Figure 7 A partial top view structural diagram of another display panel provided in an embodiment of the present application is shown;

[0022] Figure 8 A partial cross-sectional structure schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0023] Fig. 9 A partial cross-sectional structure schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0024] Fig.10 A partial cross-sectional structure schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0025] Fig.11 A partial cross-sectional structure schematic diagram of another display panel provided in an embodiment of the present application is shown;

[0026] Fig.12 A schematic diagram showing a process of a method for manufacturing a display panel provided in an embodiment of the present application is shown;

[0027] Figure 13-Figure 16 A schematic diagram showing a structure of manufacturing a display panel according to a method for manufacturing a display panel provided in an embodiment of the present application is shown;

[0028] Fig.17 A schematic cross-sectional structure diagram of a display device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, the present application is described in detail with reference to the schematic diagram. When describing the embodiments of the present application in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present application. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] The current display technology field is mainly divided into liquid crystal display (LCD), organic light emitting display (OLED) and micro light emitting diode (Micro-LED) display. Different types of display panels can be applied in various fields. For example, the above three types of display panels can be applied in terminal devices.

[0033] With the rapid development of terminal devices, higher requirements are placed on the display of terminal devices, especially the demand for full-screen display. One of the research hotspots for the demand for full-screen display is the under-screen camera technology, that is, the image display is also realized in the area where the camera is set in the terminal device.

[0034] refer to Figure 1 , which is a schematic diagram of a partial cross-sectional structure of a display panel. The display panel includes a touch layer 10 and a color resist layer 20. The color resist layer 20 includes a plurality of color resist units 21 of various colors. The light emitted by the light-emitting unit under the color resist layer passes through the color resist units of various colors to realize color display. A black matrix 22 is arranged around the color resist unit 21, and the black matrix is ​​used to limit the light emission range of the color resist unit 21.

[0035] In order to realize the display of the area CUP where the under-screen camera is set, a light-emitting unit and a color resist unit 21 can also be set in the area CUP where the under-screen camera is set. However, the thickness of the color resist unit 21 set in the area CUP where the under-screen camera is set is thinner than the thickness of the color resist unit 21 set in other areas, resulting in different brightness between the area CUP where the under-screen camera is set and other areas of the display panel, resulting in uneven display of the display panel. This is because in order to achieve high transmittance of the area CUP where the under-screen camera is set, the width of the black matrix of the area CUP where the under-screen camera is set is narrow, resulting in the color resist unit formed after the black matrix cannot be completely surrounded by the black matrix, but flows to the non-CUP area, which ultimately leads to the situation where the color resist unit thickness of the area CUP where the under-screen camera is set is thinner and the brightness is different.

[0036] That is to say, there is currently a problem of uneven display in the area of ​​the display panel where the under-screen camera is set due to the difference in thickness of the color resist unit.

[0037] Based on this, the display panel provided by the embodiment of the present application includes: a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, the second display area includes a transition area, and the transition area at least partially surrounds the first display area, that is, the first display area is an area where a photosensitive device is set, and the transition area between the first display area and the second display area is adjacent, and the display panel includes: a substrate and a color resist layer, the color resist layer is located on one side of the substrate, that is, the color resist layer can be set on the substrate. The color resist layer includes a first color resist unit located in the first display area and a second color resist unit located in the transition area. The light-transmitting colors of the first color resist unit and the second color resist unit are the same. A first blocking structure is arranged around the first color resist unit, and a second blocking structure is arranged around the second color resist unit. The distance between the side surface of the first blocking structure away from the substrate and the substrate is d1, and the distance between the side surface of the second blocking structure away from the substrate and the substrate is d2, d1>d2, that is, the height of the first blocking structure arranged in the first display area is higher than the height of the second blocking structure arranged in the transition area, so that the thickness difference between the first color resist unit arranged in the first display area and the second color resist unit arranged in the transition area can be reduced, and the color resist units arranged in the first display area and the transition area are uniform in thickness. When light passes through the color resist units with uniform thickness in different areas, uniform display of the display panel is finally achieved.

[0038] In order to better understand the technical solution and technical effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0039] refer to Figure 2 FIG. 1 is a schematic diagram of the structure of a display panel 100 provided in an embodiment of the present application. Figure 3 is along Figure 2 Schematic diagram of the cross-sectional structure of the display panel taken along the direction of BB.

[0040] The display panel 100 provided in the embodiment of the present application may be a rigid display panel or a flexible display panel. The rigid display panel is hard and not easy to bend or fold, and the flexible display panel is flexible and can be easily bent, folded or curled. For example, the display panel 100 is a foldable display panel that can be folded and unfolded, a curved display panel with a curved display surface, a curved display panel with an area other than the curved display surface, a rollable display panel that can be rolled and / or unfolded, a stretchable display panel that can be stretched and / or not stretched, etc.

[0041] refer to Figure 2 As shown, the display panel 100 provided in the embodiment of the present application includes a first display area AA1, a second display area AA2 and a non-display area NA, and the non-display area NA surrounds the second display area AA2. The first display area AA1 and the second display area AA2 are areas for display, and the non-display area NA is an area for setting a circuit structure for driving the display panel to display. The first display area AA1 and the second display area AA2 can occupy most of the area of ​​the display panel, and the first display area AA1 and the second display area AA2 can be set at the center of the display panel, such as the central area, and the non-display area NA is an area outside the display area AA, and the non-display area NA can be defined as an edge area of ​​the display panel, such as a peripheral area.

[0042] The transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, that is, the first display area AA1 may be a pixel opening area, that is, the first display area AA1 is not provided with a driving circuit. A photosensitive device may be provided in the first display area AA1 to achieve the purpose of under-screen photography of the display panel 100. The photosensitive device may be, for example, a camera. The first display area AA1 may be provided with a light-emitting unit to achieve the purpose of displaying by the display panel 100 in the first display area AA1.

[0043] The second display area AA2 includes a transition area 101 , and the transition area 101 at least partially surrounds the first display area AA1 , that is, the transition area 101 and the first display area AA1 are adjacent.

[0044] The display panel 100 provided in the embodiment of the present application includes a substrate 110. The substrate 110 may include an insulating material (for example, may be made of an insulating material), and the insulating material may be glass, quartz, or a polymer resin. The substrate 110 may be a flexible substrate that can be bent, folded, and / or rolled. As an example, the substrate 110 may include polyimide.

[0045] Specifically, the substrate 110 may include a first substrate, a second substrate and an inorganic barrier layer. In this state, each of the first substrate and the second substrate may include a polymer resin, such as at least one of polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate or cellulose acetate propionate. And the first substrate and the second substrate may include the same material or different materials. The substrate 110 adopts a structure including a polymer resin and an inorganic barrier layer to enable the display panel to be bent, folded and / or curled. And it can enhance the flatness and temperature stability of the substrate 110, facilitate the subsequent production of other film layers on its surface and enable it to withstand subsequent processing technology; at the same time, it further reduces the risk of film layer shedding during the bending process of the display panel and blocks the influence of movable charges on the thin film transistor channel, thereby improving the display quality.

[0046] The display panel 100 provided in the embodiment of the present application further includes a driving circuit layer 120, a light emitting layer 130, a packaging layer 140 and a touch control layer 150 which are stacked in sequence. Figure 3 As shown. A plurality of driving transistors may be provided in the driving circuit layer 120, a plurality of light-emitting devices may be provided in the light-emitting layer 130, and the encapsulation layer 140 is used to protect the light-emitting devices or driving transistors thereunder from being affected by water vapor or oxygen in the air. The touch layer 150 includes touch electrodes, which may be provided in the first display area AA1 and the second display area AA2, for receiving touch signals from the user. In order to achieve a high light transmittance effect in the first display area AA1, the driving transistor may be provided only in the second display area AA2, and in the first display area AA1, only a driving circuit connected to the light-emitting device provided in the first display area AA1 is provided.

[0047] The light-emitting layer 130 includes at least one light-emitting device, which can be a light-emitting device capable of emitting light of different colors, and different light-emitting colors correspond to different light-emitting wavelengths. For example, the light-emitting device can be a red light-emitting device capable of emitting red light, a green light-emitting device capable of emitting green light, and a blue light-emitting device capable of emitting blue light. Exemplarily, an organic light-emitting diode (OLED) can be selected as a light-emitting device in an embodiment of the present application, or the light-emitting device can be set as a micro light-emitting diode (Micro-LED) or a quantum dot light-emitting diode (QLED).

[0048] The display panel 100 provided in the embodiment of the present application includes a color resist layer 160, which is disposed on one side of the substrate 110, specifically on the surface of the touch layer 150 away from the substrate 110, that is, the color resist layer 150 is located on the upper surface of the touch layer 150, Figure 3 shown.

[0049] In an embodiment of the present application, the color resist layer 160 is used to emit light from the light-emitting device, and the color resist layer 160 includes a plurality of color resist units, and color resist units of different light-transmitting colors can transmit light of different colors. In other words, the light-emitting device can correspond to the color resist unit one by one, and the light emitted by the light-emitting device of a certain color can be emitted using the color resist unit of the light-transmitting color. For example, a red light-emitting device emits light using a red color resist unit, while green or blue light cannot emit light through the red color resist unit. The color resist layer 160 includes a first color resist unit 161 located in the first display area AA1 and a second color resist unit 162 located in the transition area 101, wherein the first color resist unit 161 and the second color resist unit 163 have the same light-transmitting color.

[0050] Correspondingly, the light-emitting layer 130 includes a first light-emitting unit 131 located in the first display area AA1 and a second light-emitting unit 132 located in the transition area 101. The light-emitting colors of the first light-emitting unit 131 and the second light-emitting unit 132 are the same. The orthographic projection of the first light-emitting unit 131 on the substrate 110 overlaps with the orthographic projection of the first color resist unit 161 on the substrate 110, and the orthographic projection of the second light-emitting unit 132 on the substrate 110 overlaps with the orthographic projection of the second color resist unit 162 on the substrate 110. That is, the first light-emitting unit 131 and the first color resist unit 161 are correspondingly arranged, and the second light-emitting unit 132 and the second color resist unit 162 are correspondingly arranged. Figure 3 Optionally, the orthographic projection of the first color resist unit 161 on the substrate 110 covers the orthographic projection of the first light emitting unit 131 on the substrate 110, and the area of ​​the first color resist unit 161 is larger than the area of ​​the corresponding first light emitting unit 131; the orthographic projection of the second color resist unit 162 on the substrate 110 covers the orthographic projection of the second light emitting unit 132 on the substrate 110, and the area of ​​the second color resist unit 162 is larger than the area of ​​the corresponding second light emitting unit 131.

[0051] The display panel 100 provided in the embodiment of the present application includes a light blocking structure, which surrounds the color resist unit and is used to control the light emission range and brightness, wherein one of the factors affecting the brightness is the thickness of the color resist unit. A first blocking structure 170 is provided around the first color resist unit 161, and the brightness of the first display area AA1 is controlled by the first blocking structure 170. A second blocking structure 180 is provided around the second color resist unit 162, and the brightness of the transition area 101 is controlled by the second blocking structure 180.

[0052] In the embodiment of the present application, the distance between the side surface of the first blocking structure 170 away from the substrate 110 and the substrate 110 is d1, that is, the height of the first blocking structure 140 is d1, and the distance between the side surface of the second blocking structure 180 away from the substrate 110 and the substrate 11 is d2, that is, the height of the second blocking structure 180 is d2, d1>d2, that is, the height of the first blocking structure 170 is greater than the height of the second blocking structure 180, so that the thickness difference between the first color resist unit 161 and the second color resist unit 162 formed after the light blocking structure is small, and even the thickness of the first color resist unit 161 and the second color resist unit 162 is the same, so that the brightness difference of the light emitted by the light emitting unit after passing through the first color resist unit 161 in the first display area AA1 and the second color resist unit 162 in the transition area 101 is small, and uniform display of the first display area AA1 and the second display area AA2 is achieved.

[0053] In an embodiment of the present application, the color resist unit surrounded by the light blocking structure is generally formed after the light blocking structure. When the height of the first blocking structure 170 arranged in the first display area AA1 is relatively high, even if the width of the first blocking structure 170 is relatively narrow, the probability of the first color resist unit 161 flowing out of the first display area AA1 is reduced, and the thickness of the first color resist unit 161 remaining in the first blocking structure 170 is increased, thereby reducing the thickness difference between the first color resist unit 161 and the second color resist unit 162, thereby achieving uniform display of the first display area AA1 and the second display area AA2.

[0054] In the embodiment of the present application, in a direction parallel to the plane where the substrate 110 is located, the width of the first blocking structure 170 is smaller than the width of the second blocking structure 180. Figure 4 As shown, that is, the width of the first blocking structure 170 disposed in the first display area AA1 is relatively narrow, so that a high light transmittance effect of the first display area AA1 can be achieved, and a high light transmittance of the first display area AA1 can be achieved.

[0055] In the embodiment of the present application, the color resist layer 160 includes a black matrix, which is an opaque material. The second blocking structure 180 is a black matrix, that is, the light exit blocking structure of the second display area AA2 is a black matrix, and the first blocking structure 170 includes a first blocking portion 171 and a second blocking portion 172, and the second blocking portion 172 is located on a side of the first blocking portion 171 away from the substrate 110, that is, the second blocking portion 172 and the first blocking portion 171 overlap in a direction perpendicular to the plane where the substrate 110 is located, that is, the second blocking portion 172 at least partially covers the first blocking portion 171.

[0056] In the embodiment of the present application, in a direction parallel to the plane where the substrate 110 is located, the width of the second blocking portion 172 may be greater than or equal to the width of the first blocking portion 171. Figure 3 As shown, the second blocking portion 172 is used to completely cover the first blocking portion 171 to achieve light blocking.

[0057] The second blocking portion 172 and the first blocking portion 171 may be different structures. In some embodiments, the second blocking portion 172 is a black matrix, and the first blocking portion 171 is a third color resist unit 163. In other embodiments, the second blocking portion 172 is a third color resist unit 163, and the first blocking portion 171 is a black matrix, wherein the light-transmitting color of the third color resist unit 163 is different from the light-transmitting color of the first color resist unit 161, that is, color resist units of other colors may be used as light-exit blocking structures, so that the light-exit blocking effect can be achieved without adding additional materials for the blocking structure, and the height of the light-exit blocking structure around the first color resist unit 161 can also be increased.

[0058] The following are the details:

[0059] A first possible implementation is that the second blocking portion 172 is a black matrix, and the first blocking portion 171 is a third color blocking unit 163. Figure 5 As shown, the black matrix is ​​disposed above the third color-resistance unit 163. Both the black matrix and the third color-resistance unit 163 can prevent light from being emitted. As a light-exit blocking structure, the thickness of the first color-resistance unit 161 can be increased to improve display uniformity. When forming the third color-resistance unit 163, the first blocking portion 171 can be formed at the same time. The process flow is simple, and the first blocking portion 171 is relatively easy to form. On the basis of improving the display uniformity of the display panel, the manufacturing cost of the display panel will not be increased.

[0060] In the embodiment of the present application, the edge of the first blocking portion 171 on the substrate 110 whose orthographic projection is close to the first color resist unit 161 is the first edge 171-1, and the edge of the second blocking portion 172 on the substrate 110 whose orthographic projection is close to the first color resist unit 161 is the second edge 172-1. The first edge 171-1 is located on the side of the second edge 172-1 away from the first color resist unit, that is, the inner edge of the second blocking portion 172 is closer to the first color resist unit 161 than the inner edge of the first blocking portion 171, so that the light emitted by the light-emitting unit can be prevented from being directly emitted from the first blocking portion 171, that is, the third color resist unit 163, thereby causing mixed light.

[0061] In practical applications, due to process limitations, the cross-sectional shapes of the first blocking portion 171 and the second blocking portion 172 may not be rectangular, but are generally trapezoidal. In this case, the first blocking portion 171 includes a first side wall 171-2 close to the first color resist unit 161, and the second blocking portion 172 includes a second side wall 172-2 close to the first color resist unit 161. The orthographic projection of the second side wall 172-2 on the substrate 110 covers the orthographic projection of the first side wall 171-2 on the substrate 110. In this case, it is equivalent to that the inner edge of the second blocking portion 172 is closer to the first color resist unit 161, and the effect of blocking light from being directly emitted from the first blocking portion 171 to avoid light mixing can also be achieved.

[0062] A second possible implementation is that the second blocking portion 172 is the third color blocking unit 163, and the first blocking portion 171 is a black matrix. Figure 3 As shown, the third color-resistance unit 163 is disposed above the black matrix. Both the black matrix and the third color-resistance unit 163 can prevent light from being emitted. As a light-exit blocking structure, the thickness of the first color-resistance unit 161 can also be increased to improve display uniformity. When forming the third color-resistance unit 163, the second blocking portion 172 can be formed at the same time. The process flow is simple, and the second blocking portion 172 is relatively easy to form. On the basis of improving the display uniformity of the display panel, the manufacturing cost of the display panel will not be increased.

[0063] In the embodiment of the present application, the light-transmitting color of the first color-resistance unit 161 is different from the light-transmitting color of the third color-resistance unit 163 , so as to achieve the purpose of blocking the emission of light by using the third color-resistance unit 163 .

[0064] As an example, the light-transmitting color of the first color resist unit 161 is green, and the light-transmitting color of the third color resist unit is blue or red. That is to say, colors to which the human eye is not sensitive, such as blue or red, can be used as light blocking structures, and colors to which the human eye is more sensitive, such as green, can be used as color resist units with increased thickness, which can better meet the actual usage needs of users.

[0065] In the embodiment of the present application, the first blocking structure 170 includes a first blocking portion 171 and a second blocking portion 172. The thickness of the first blocking portion 171 may not be equal to the thickness of the first color resist unit 161. That is, whether the first blocking portion 171 is a black matrix or a third color resist unit 173, the thickness may be different from that of the first color resist unit 161. When the first blocking portion 171 is the third color resist unit 173, since the first color resist unit 161 and the third color resist unit 163 have different light-transmitting colors, different forming materials, and different optical densities corresponding to the materials, the thickness of the first color resist unit 161 and the third color resist unit 163 may also be different.

[0066] As an example, the color-resist unit whose light-transmitting color is red is the thickest, and the color-resist unit whose light-transmitting color is green is the thinnest.

[0067] In practical applications, the light-transmitting colors of the first color-resistance unit 161 are different, and the height difference d1-d2 between the first blocking structure 170 and the second blocking structure 180 may also be different. That is, the light-transmitting colors of the first blocking portion 171 or the second blocking portion 172 corresponding to the first color-resistance unit 161 of different light-transmitting colors are also different. Since the thickness of the color-resistance units of different light-transmitting colors is different, when the second blocking structure 180 is a black matrix and the thickness remains unchanged, the height difference d1-d2 between the first blocking structure 170 and the second blocking structure 180 is the thickness of the first blocking portion 171 or the second blocking portion 172. Therefore, the thickness of the first blocking portion 171 or the second blocking portion 172 can change accordingly with the change of the light-transmitting color of the first color-resistance unit 161.

[0068] In the embodiment of the present application, the first blocking structure 170 may be at the same height or at different heights. When the first blocking portion 171 or the second blocking portion 172 surrounds the first color resist unit 161 to form a closed surrounding structure, the first blocking structure 170 is at the same height, so that the height of the blocking structure corresponding to the first color resist unit 161 can be comprehensively improved, so that the probability of the first color resist unit 161 flowing out of the first blocking structure 170 is greatly reduced, and the thickness of the first color resist unit 161 is correspondingly increased, thereby improving the display uniformity of the first display area AA1.

[0069] When one of the first blocking portion 171 and the second blocking portion 172 surrounds the first color resist unit 161 to form a closed surrounding structure, and the other is dispersed around the first color resist unit 161 and does not form a closed surrounding structure, the first blocking structure 170 is not at the same height, forming a first blocking structure 170 with fluctuating heights, which can also achieve the purpose of limiting the first color resist unit 161 within the first blocking structure 170 as much as possible.

[0070] In practical applications, one of the first blocking portion 171 and the second blocking portion 172 is uniformly disposed around the first color resist unit 161. Figure 6 As shown, the first blocking portion 171 is a black matrix, the second blocking portion 172 is a third color resist unit 163, and the third color resist unit 163 is a color resist unit with a blue light-transmitting color. At this time, the third color resist unit 163 does not form a surrounding structure, but is only dispersed and evenly arranged in four directions of the first color resist unit 161.

[0071] In the embodiment of the present application, the transition region 101 may also be provided with a pseudo blocking structure 190, see Figure 7As shown, the pseudo blocking structure 190 is disposed around the second color resist unit 162. The pseudo blocking structure 190 can increase the height of the blocking structure around the second color resist unit 162, thereby increasing the thickness of the second color resist unit 162, balancing the thickness between the first color resist unit 161 and the second color resist unit 162, and reducing the thickness difference between the first color resist unit 161 and the second color resist unit 162, thereby achieving uniform display of the transition area 101 and the first display area AA1.

[0072] The pseudo blocking structure 190 is a fourth color-resistance unit, and the light-transmitting color of the fourth color-resistance unit is different from the light-transmitting color of the second color-resistance unit, so as to realize the use of the fourth color-resistance unit to block the light. The light-transmitting color of the fourth color-resistance unit and the light-transmitting color of the third color-resistance unit 163 can be the same, that is, for the first color-resistance unit 161 and the second color-resistance unit 162 with the same light-transmitting color, the third color-resistance unit 163 and the fourth color-resistance unit with the same light-transmitting color can be used as a blocking structure, which is convenient for the manufacturing process of the color-resistance unit and the blocking structure, and reduces the manufacturing cost of the display panel.

[0073] In the embodiment of the present application, the dummy blocking structure 190 may be disposed on a side surface of the second blocking structure 180 away from the substrate 110, that is, the dummy blocking structure 190 is disposed above the second blocking structure 180. Figure 8 The second blocking structure 180 may also be disposed on a side surface of the dummy blocking structure 190 away from the substrate 110, that is, the dummy blocking structure 190 is disposed below the second blocking structure 180, see Fig. 9 The above configurations can increase the height of the blocking structure around the second color resist unit 162 , thereby increasing the thickness of the second color resist unit 162 .

[0074] In an embodiment of the present application, the pseudo blocking structure 190 is uniformly arranged around the second color resist unit 162, so that the height of the blocking structure around the second color resist unit 162 can be uniformly increased, thereby avoiding uneven height of the blocking structure around the second color resist unit 162 due to uneven arrangement of the pseudo blocking structure 190, thereby affecting the thickness uniformity of the second color resist unit 162.

[0075] In the embodiment of the present application, the pseudo blocking structure 190 does not form a closed surrounding structure around the second color resist unit 162, but is dispersed around the second color resist unit 162. The density of the pseudo blocking structure 190 can be determined according to the actual thickness of the second color resist unit 162 that you want to increase. The density of the pseudo blocking structure 190 cannot be too large, otherwise it will cause the thickness of the second color resist unit 162 to increase significantly, but increase the thickness difference between the first color resist unit 161 and the second color resist unit 162. The density of the pseudo blocking structure 190 cannot be too small, otherwise it will cause the thickness of the second color resist unit 162 to have no obvious change, and will not play a role in reducing the thickness difference between the first color resist unit 161 and the second color resist unit 162.

[0076] In the embodiment of the present application, the second display area AA2 may include a normal display area 102, and the normal display area 102 is also provided with a fifth color resistance unit 165, and a third blocking structure 210 is also provided around the fifth color resistance unit 165. The third blocking structure 210 may also include two parts, namely a third blocking part 211 and a sixth color resistance unit 212, and the third blocking part 211 is a black matrix. The third blocking part 211 may be provided on a side surface of the sixth color resistance unit 212 away from the substrate 110, that is, the third blocking part 211 is provided above the sixth color resistance unit 212, referring to Fig.10 The sixth color-resistance unit 212 may also be disposed on a side surface of the third blocking portion 211 away from the substrate 110, that is, the third blocking portion 211 is disposed below the sixth color-resistance unit 212, Fig.11 That is to say, the sixth color-resistance unit 212 can also be provided in the normal display area 102 to increase the height of the blocking structure around the fifth color-resistance unit 165, wherein the light-transmitting color of the fifth color-resistance unit 165 can be the same as the light-transmitting color of the first color-resistance unit 161, and the sixth color-resistance unit 212 can be the same as the light-transmitting color of the third color-resistance unit 163. In this way, when forming the color-resistance unit and the blocking structure, etching is adjusted from a large area to a small area, which can improve the etching accuracy.

[0077] The display panel provided by the embodiment of the present application includes: a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, the second display area includes a transition area, and the transition area at least partially surrounds the first display area, that is, the first display area is an area where a photosensitive device is set, and the transition area between the first display area and the second display area is adjacent, and the display panel includes: a substrate and a color resist layer, the color resist layer is located on one side of the substrate, that is, the color resist layer can be set on the substrate. The color resist layer includes a first color resist unit located in the first display area and a second color resist unit located in the transition area. The light-transmitting colors of the first color resist unit and the second color resist unit are the same. A first blocking structure is arranged around the first color resist unit, and a second blocking structure is arranged around the second color resist unit. The distance between the side surface of the first blocking structure away from the substrate and the substrate is d1, and the distance between the side surface of the second blocking structure away from the substrate and the substrate is d2, d1>d2, that is, the height of the first blocking structure arranged in the first display area is higher than the height of the second blocking structure arranged in the transition area, so that the thickness difference between the first color resist unit arranged in the first display area and the second color resist unit arranged in the transition area can be reduced, and the color resist units arranged in the first display area and the transition area are uniform in thickness. When light passes through the color resist units with uniform thickness in different areas, uniform display of the display panel is finally achieved.

[0078] Based on the display panel provided in the above embodiments, the present application also provides a method for manufacturing a display panel, referring to Fig.12 FIG. 1 is a schematic diagram of a method for manufacturing a display panel provided in an embodiment of the present application. The manufacturing process of the display panel provided in an embodiment of the present application includes the following steps:

[0079] S101 , forming a first blocking structure 170 and a second blocking structure 180 on a substrate 110 .

[0080] In an embodiment of the present application, a first blocking structure 170 and a second blocking structure 180 may be formed in the first display area AA1 and the transition area 101, respectively, wherein a distance between a side surface of the first blocking structure 170 away from the substrate 110 and the substrate 110 is d1, and a distance between a side surface of the second blocking structure 180 away from the substrate 110 and the substrate 110 is d2, and d1>d2.

[0081] In an embodiment of the present application, the second blocking structure 180 is a black matrix. The first blocking structure 170 includes a first blocking portion 171 and a second blocking portion 172, and the second blocking portion 172 is located on a side of the first blocking portion 171 away from the substrate 110. The second blocking portion 172 and the first blocking portion 171 can be different structures. In some embodiments, the second blocking portion 172 is a black matrix, and the first blocking portion 171 is a third color resistance unit 163. In other embodiments, the second blocking portion 172 is a third color resistance unit 163, and the first blocking portion 171 is a black matrix, wherein the light-transmitting color of the third color resistance unit 163 is different from the light-transmitting color of the first color resistance unit 161.

[0082] In practical applications, the process of forming the first blocking structure 170 and the second blocking structure 180 on the substrate 110 is as follows:

[0083] The first possible implementation is that the second blocking portion 172 is a black matrix, the first blocking portion 171 is a third color resistance unit 163, and the black matrix is ​​disposed above the third color resistance unit 163. At this time, the third color resistance unit 163 can be formed first, referring to Fig.13 As shown, the third color resist unit 163 is disposed in the first display area AA1 and the transition area 101. When forming the third color resist unit 163, the first blocking portion 171 can be formed at the same time, that is, the blocking structure of the first color resist unit 161 is formed. Then, a black matrix is ​​formed on the third color resist unit 163 located in the first display area AA1 and on the substrate located in the transition area 101, that is, the second blocking portion 172 is formed in the first display area AA1 and the second blocking structure 180 is formed in the transition area 101, respectively, referring to FIG. Fig.14 In this way, by adjusting the third color resist unit 163 to before the black matrix forming process, the first blocking portion 171 is manufactured using the third color resist unit 163, without adding an additional process flow, and the process flow is simple, the first blocking portion 171 is relatively easy to form, and the manufacturing cost of the display panel will not be increased on the basis of improving the display uniformity of the display panel.

[0084] The second possible implementation is that the second blocking portion 172 is the third color resistance unit 163, the first blocking portion 171 is a black matrix, and the third color resistance unit 163 is arranged above the black matrix. In this case, a black matrix can be formed first, and the black matrix is ​​arranged in the first display area AA1 and the transition area 101. Fig.15 As shown, the first blocking portion 171 is formed in the first display area AA1 and the second blocking structure 180 is formed in the transition area 101, referring to Fig.16As shown. Then, the third color resist unit 163 is formed on the black matrix located in the first display area AA1 and on the substrate 110 located in the transition area 101. That is, when the third color resist unit 163 is formed, the second blocking portion 172 can be formed at the same time, that is, the blocking structure of the first color resist unit 161 is formed. In this way, by adjusting the third color resist unit 163 to the formation process before other color resist units, the second blocking portion 172 is manufactured using the third color resist unit 163, without adding additional process flow, and the process flow is simple, the second blocking portion 172 is relatively easy to form, and the manufacturing cost of the display panel will not be increased on the basis of improving the display uniformity of the display panel.

[0085] S102, forming a color resist layer 160.

[0086] After forming the first blocking structure 170 and the second blocking structure 180, the first color resist unit 161 and the second color resist unit 162 can be formed in the first display area AA1 and the transition area 101, respectively. The first color resist unit 161 and the second color resist unit 162 have the same light-transmitting color. The first blocking structure 170 surrounds the first color resist unit 161, and the second blocking structure 180 surrounds the second color resist unit 162. The first color resist unit 161 and the second color resist unit 162 can be formed simultaneously to reduce the manufacturing process of the display panel and save costs.

[0087] An embodiment of the present application also provides a display device, comprising the display panel described in the above embodiment.

[0088] refer to Fig.17 , which is a schematic diagram of the planar structure of a display device provided in an embodiment of the present application. As can be seen from the figure, the display device 1000 includes a display panel 100, and the display panel 100 is the display panel 100 described in any of the above embodiments. The display device 1000 provided in the embodiment of the present application may be a mobile phone, a computer, a television, a car display device or other display device with a display function, and the embodiment of the present application does not make specific limitations. The display device 1000 provided in the embodiment of the present application has the beneficial effects of the display panel 100 provided in the embodiment of the present application. For details, please refer to the specific description of the display panel in the above embodiment, and the embodiment of the present application will not be repeated here.

[0089] The above is only a preferred implementation of the present application. Although the present application has been disclosed as a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of protection of the technical solution of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: a first display area and a second display area, the first display area is provided with a photosensitive device, the light transmittance of the first display area is greater than the light transmittance of the second display area, the second display area comprises a transition area, and the transition area at least partially surrounds the first display area; the display panel comprises: substrate; A color resist layer, located on one side of the substrate, the color resist layer comprising a first color resist unit located in the first display area and a second color resist unit located in the transition area, the first color resist unit and the second color resist unit having the same light transmission color; A first blocking structure is provided around the first color-resistance unit, and a second blocking structure is provided around the second color-resistance unit. A distance d1 is provided between a surface of a side of the first blocking structure away from the substrate and the substrate, and a distance d2 is provided between a surface of a side of the second blocking structure away from the substrate and the substrate, and d1>d2. The first blocking structure includes a first blocking portion and a second blocking portion, the second blocking portion is located on a side of the first blocking portion away from the substrate, and the first blocking portion surrounds the first color resist unit to form a closed surrounding structure; In a direction parallel to the plane where the substrate is located, the width of the first blocking structure is smaller than the width of the second blocking structure; The color resist unit is formed after the blocking structure.

2. The display panel according to claim 1, characterized in that: The color resist layer includes a black matrix, the second blocking structure is the black matrix, one of the second blocking part or the first blocking part is the black matrix, and the other is a third color resist unit, and the light-transmitting color of the third color resist unit is different from the light-transmitting color of the first color resist unit.

3. The display panel according to claim 2, characterized in that: The first blocking portion is the third color blocking unit, and the second blocking portion is a black matrix.

4. The display panel according to claim 3, characterized in that: The edge of the first blocking portion's orthographic projection on the substrate close to the first color resist unit is the first edge, the edge of the second blocking portion's orthographic projection on the substrate close to the first color resist unit is the second edge, and the first edge is located on the side of the second edge away from the first color resist unit.

5. The display panel according to claim 4, characterized in that: The first blocking portion includes a first side wall close to the first color resist unit, and the second blocking portion includes a second side wall close to the first color resist unit, wherein an orthographic projection of the second side wall on the substrate covers an orthographic projection of the first side wall on the substrate.

6. The display panel according to claim 2, characterized in that: The first blocking portion is the black matrix, and the second blocking portion is a third color resistance unit.

7. The display panel according to any one of claims 1 to 5, characterized in that: A pseudo blocking structure is disposed in a partial area of ​​the transition zone, and the pseudo blocking structure is a fourth color-resistance unit, and the light-transmitting color of the fourth color-resistance unit is different from the light-transmitting color of the second color-resistance unit.

8. The display panel according to claim 7, characterized in that: The second blocking structure is disposed on a surface of the dummy blocking structure that is away from the substrate.

9. The display panel according to claim 7, characterized in that: The dummy blocking structure is disposed on a surface of the second blocking structure that is away from the substrate.

10. The display panel according to claim 7, characterized in that: The dummy blocking structure is uniformly arranged around the second color blocking unit.

11. The display panel according to any one of claim 2, characterized in that: The light-transmitting color of the first color-resistance unit is green, and the light-transmitting color of the third color-resistance unit is blue or red.

12. The display panel according to claim 1, characterized in that: The display panel includes a light-emitting layer, which is located between the substrate and the color resist layer. The light-emitting layer includes a first light-emitting unit located in the first display area and a second light-emitting unit located in the transition area. The first light-emitting unit and the second light-emitting unit have the same light-emitting color. The first light-emitting unit and the first color resist unit overlap in an orthographic projection of the substrate, and the second light-emitting unit and the second color resist unit overlap in an orthographic projection of the substrate.

13. The display panel according to claim 1, characterized in that: The thickness of the first blocking portion is not equal to the thickness of the first color resist unit.

14. A method for manufacturing a display panel, characterized in that: Used to manufacture a display panel according to any one of claims 1 to 13, the display panel comprising: a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, the second display area comprises a transition area, the transition area at least partially surrounds the first display area; the method comprising: A first blocking structure and a second blocking structure are formed on the substrate, wherein the first blocking structure is disposed in the first display area, and the second blocking structure is disposed in the transition area, a distance d1 between a side surface of the first blocking structure away from the substrate and the substrate, and a distance d2 between a side surface of the second blocking structure away from the substrate and the substrate, and d1>d2; A color resist layer is formed, wherein the color resist layer includes a first color resist unit located in the first display area and a second color resist unit located in the transition area, wherein the first color resist unit and the second color resist unit have the same light-transmitting color, the first blocking structure surrounds the first color resist unit, and the second blocking structure surrounds the second color resist unit.

15. The manufacturing method according to claim 14, characterized in that: The color-resist layer includes a black matrix, the second blocking structure is the black matrix, the first blocking structure includes a first blocking portion and a second blocking portion, the first blocking portion is a third color-resist unit, the second blocking portion is the black matrix, and the light-transmitting color of the third color-resist unit is different from the light-transmitting color of the first color-resist unit; The forming of the first blocking structure and the second blocking structure on the substrate comprises: forming the third color resistance unit on the substrate; The black matrix is ​​formed on the third color resistance unit located in the first display area and on the substrate located in the transition area.

16. The manufacturing method according to claim 14, characterized in that: The color-resist layer includes a black matrix, the second blocking structure is the black matrix, the first blocking structure includes a first blocking portion and a second blocking portion, the first blocking portion is the black matrix, the second blocking portion is a third color-resist unit, and the light-transmitting color of the third color-resist unit is different from the light-transmitting color of the first color-resist unit; The forming of the first blocking structure and the second blocking structure on the substrate comprises: forming the black matrix on the substrate; The third color resistance unit is formed on the black matrix located in the first display area.

17. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-13.

Images