CN114333600B - Display panel, preparation method of display panel and display module - Google Patents
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Abstract
The application provides a display panel, a preparation method of the display panel and a display module, relates to the technical field of semiconductors, and is used for solving the problem that annular ink on a transparent cover plate has poor shading effect on a camera hole. The display panel comprises a light emitting array layer, wherein one side of the light emitting array layer is provided with a substrate, a first light hole is arranged in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer; the first light holes are filled with a first light-transmitting filling layer; one side of the light emitting array layer, which is far away from the substrate, is provided with a shading layer, and the shading layer is close to the first light holes and surrounds at least part of the periphery of the first light holes. The shading layer around the light holes of the display panel provided by the embodiment of the application has a better shading effect, so that the light leakage of the light holes can be avoided to influence the use effect of the functional devices under the screen, and the display effect of the display panel can be improved.
Description
Technical Field
The application relates to the technical field of semiconductors, in particular to a display panel, a preparation method of the display panel and a display module.
Background
With the development of display technology, display devices such as mobile phones, PAD (personal digital assistants), televisions and the like are increasingly deep into daily lives of people, and convenient lives are provided for people. Especially, the mobile phone becomes a necessary product for people's daily life.
In the related art, a front camera is configured on a mobile phone, the front camera is arranged below a display panel, and a camera hole is formed in a position, corresponding to the front camera, of the display panel, so that the front camera can realize a camera shooting function through the camera hole.
However, the light emitted by the light emitting layer of the display panel passes through the transparent cover plate above the image capturing hole, so as to cause image capturing Kong Louguang, which affects the imaging of the front camera.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a display panel, a manufacturing method of the display panel, and a display module, where a shading effect of a shading layer around a light hole of the display panel is relatively good, so that light leakage of the light hole can be avoided to affect a use effect of an under-screen functional device, and a display effect of the display panel can be improved.
In a first aspect, an embodiment of the present application provides a display panel, including a light emitting array layer, where a substrate is disposed on one side of the light emitting array layer, and a first light hole is disposed in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along a thickness direction of the light emitting array layer; a first light-transmitting filling layer is filled in the first light-transmitting hole; the light shielding layer is arranged on one side, away from the substrate, of the light emitting array layer, is close to the first light holes, and surrounds at least part of the periphery of the first light holes.
The display panel provided by the embodiment of the application comprises a light emitting array layer, wherein one side of the light emitting array layer is provided with a substrate, a first light hole is arranged in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer. The first light-transmitting filling layer is filled in the first light-transmitting holes, so that the structural stability and strength of the display panel can be improved.
Simultaneously, through setting up the shielding layer in the one side of deviating from the substrate of luminous array layer, the shielding layer is close to first light trap setting, and encircles the at least partial periphery of first light trap to can prevent the light that luminous array layer sent from the light trap side entering light trap, make the shielding layer to the shading effect of light trap better. And then not only can avoid the light leak of light trap and influence the result of use of the functional device under the screen, need not to set up annular printing ink moreover on transparent cover plate, be favorable to improving display effect and the pleasing to the eye degree of display panel.
In a possible implementation manner of the display panel, at least part of the orthographic projection of the light shielding layer on the light emitting array layer is located in the first light holes.
It may be realized that the light shielding layer includes an extension portion, and a orthographic projection of the extension portion on the light emitting array layer is located in the first light hole and overlapped with a part of the first light-transmitting filling layer;
it may be realized that the extension length of the extension portion along the radial direction of the first light-transmitting hole ranges from 0.05mm to 0.15mm.
So set up, not only can improve the shading effect of shading layer, can form the shielding to the pore wall of first light trap moreover, further improve display panel's display effect and pleasing to the eye degree.
In one possible implementation manner of the display panel, a frame portion is disposed on a side, close to the first light holes, of the light emitting array layer, the frame portion surrounds at least a portion of the periphery of the first light holes, and the light shielding layer is disposed on a side, away from the substrate, of the frame portion.
It may be realized that, along the radial direction of the first light hole, a side of the light shielding layer away from the first light hole is closer to the first light hole than a side of the frame portion away from the first light hole.
It may be realized that, along the radial direction of the first light hole, one side of the frame portion, which is close to the first light hole, is abutted to the first light-transmitting filling layer.
It may be realized that the thickness of the light shielding layer is smaller than the thickness of the frame portion.
The first frame part can encapsulate and protect the edge of the light emitting array layer, which faces the first light holes; secondly, the shading layer can be arranged on the frame part to avoid shading the part, close to the frame part, of the light emitting array layer; thirdly, the side, close to the first light holes, of the side frame part of the light shielding layer can be shielded, so that the display effect and the attractiveness of the display panel are improved; fourth, the thickness of the display panel is advantageously controlled.
In one possible implementation manner of the display panel, a transition layer is disposed on one side, facing away from the substrate, of the light emitting array layer, the transition layer is disposed on the same layer as the light shielding layer, and one side, facing away from the light emitting array layer, of the transition layer is flush with one side, facing away from the light emitting array layer, of the light shielding layer.
It may be realized that, along the radial direction of the first light hole, the transition layer is close to one side of the light shielding layer and is abutted to one side of the light shielding layer away from the first light hole.
So set up, not only can eliminate the difference in height that the shading layer brought, guarantee display panel's planarization, can guarantee the continuity of shading layer and transition layer moreover, guarantee display panel's structural strength.
In one possible implementation manner of the display panel, the display panel further includes a functional layer, the functional layer is disposed on a side of the transition layer, which is away from the light emitting array layer, and a second light hole is disposed in the functional layer, and is communicated with the first light hole; the orthographic projection of the second light holes on the light emitting array layer covers the first light holes and part of the shading layer.
It may be realized that the orthographic projection of the hole wall of the second light-transmitting hole on the light-emitting array layer is located inside the orthographic projection of the light-shielding layer on the light-emitting array layer;
it may be realized that the functional layer includes at least one of a polarizing layer and a touch layer.
So set up, first, can prevent that the functional layer from sheltering from first light trap, the second can guarantee that the functional layer covers the one side of keeping away from the substrate of luminous array layer, and the third can assist display panel promotes the display effect, and fourth can realize display panel's touch-control function.
In one possible implementation manner of the display panel, a second light-transmitting filling layer is filled in the second light-transmitting hole, and one surface of the second light-transmitting filling layer facing the first light-transmitting filling layer is connected with the first light-transmitting filling layer.
The arrangement is beneficial to improving the structural stability and the structural strength of the display panel.
In one possible implementation manner of the display panel, the portion, away from the first light-transmitting filling layer, of the second light-transmitting filling layer is arranged in the same layer as the functional layer, and a face, away from the first light-transmitting filling layer, of the second light-transmitting filling layer is flush with a face, away from the light-emitting array layer, of the functional layer.
So set up, can prevent to laminate and form the bubble influence laminating between other retes of the one side of deviating from first printing opacity filling layer of second printing opacity filling layer and second printing opacity filling layer to not only can guarantee laminating effect and display effect, can guarantee the result of use of display device under the screen moreover.
In one possible implementation manner of the display panel, the display panel further includes an encapsulation layer, an optical adhesive layer is disposed on a surface of the functional layer, which is away from the light emitting array layer, and the encapsulation layer is attached to a surface of the optical adhesive layer, which is away from the functional layer.
It may be realized that the optical adhesive layer and the second light-transmitting filling layer are in an integral structure.
So set up, first, not only can guarantee the compactness and the reliability of encapsulation layer laminating, need not moreover to set up annular printing ink at the encapsulation layer, be favorable to reducing the frame that hides the light hole, improve display panel's display effect and pleasing to the eye degree. And secondly, the optical adhesive layer and the second light-transmitting filling layer can be formed together, so that the efficiency is improved, and meanwhile, the structural strength is improved.
In one possible implementation manner of the display panel, the display panel further includes a support layer, where the support layer is disposed on a side of the light emitting array layer having the substrate; the first light holes extend towards one side where the supporting layer is located and penetrate through the supporting layer, and the first light holes are filled with the first light-transmitting filling layer.
The display panel is provided with the support layer, so that the support layer can support the display panel to ensure the structural reliability of the display panel; on the other hand, the luminous array layer can be punched with the supporting layer integrally, so that the preparation efficiency of the display panel is improved, and the size of the light holes of the luminous array layer and the size of the light holes of the supporting layer are consistent and the positions of the light holes of the luminous array layer and the supporting layer are aligned.
In a second aspect, an embodiment of the present application provides a method for manufacturing a display panel, including:
providing a light emitting array layer;
forming a first light hole in the light emitting array layer, wherein the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer;
a first light-transmitting filling layer is filled in the first light-transmitting hole;
a shading layer is formed on one side, away from the substrate of the light emitting array layer, is close to the first light holes, and surrounds at least part of the periphery of the first light holes.
It can be realized that one side of the light emitting array layer, which is away from the substrate, is provided with a transition layer, the transition layer is arranged on the same layer as the light shielding layer, and one side of the transition layer, which is away from the light emitting array layer, is flush with one side of the light shielding layer, which is away from the light emitting array layer.
The display panel prepared by the preparation method of the display panel provided by the embodiment of the application comprises a light-emitting array layer, wherein one side of the light-emitting array layer is provided with a substrate, a first light hole is arranged in the light-emitting array layer, and the first light hole penetrates through the light-emitting array layer along the thickness direction of the light-emitting array layer. The first light-transmitting filling layer is filled in the first light-transmitting holes, so that the structural stability and strength of the display panel can be improved.
Simultaneously, through setting up the shielding layer in the one side of deviating from the substrate of luminous array layer, the shielding layer is close to first light trap setting, and encircles the at least partial periphery of first light trap to can prevent the light that luminous array layer sent from the light trap side entering light trap, make the shielding layer to the shading effect of light trap better. And then not only can avoid the light leak of light trap and influence the result of use of the functional device under the screen, need not to set up annular printing ink moreover on transparent cover plate, be favorable to improving display effect and the pleasing to the eye degree of display panel. The transition layer can eliminate the height difference brought by the shading layer, and the flatness of the display panel is ensured.
In a third aspect, an embodiment of the present application provides a display module, including an under-screen functional device and a display panel according to any one of the preceding claims, where the under-screen functional device is located on a backlight side of the display panel, and at least a portion of an orthographic projection of the under-screen functional device on a light emitting array layer of the display panel is located in a first light hole of the light emitting array layer.
The display module provided by the embodiment of the application comprises the under-screen functional device and the display panel, wherein the under-screen functional device is arranged on the backlight side of the display panel, and at least part of the under-screen functional device is arranged in the first light holes of the light emitting array layer of the display panel in a orthographic projection manner, so that the under-screen functional device can realize the function of the under-screen functional device through the first light holes.
Meanwhile, the display module according to the embodiment of the application includes the display panel, so the display panel has the beneficial effects that the display module also has, and the details are not repeated here.
In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above, the display panel, the manufacturing method of the display panel, and the display module provided by the embodiments of the present application, other technical problems that can be solved by the technical solutions, other technical features included in the technical solutions, and beneficial effects caused by the technical features will be described in further detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following descriptions are some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a manufacturing process of a display panel according to an embodiment of the application;
fig. 3 is a schematic diagram of a manufacturing process of a display panel according to an embodiment of the present application;
fig. 4 is a schematic diagram III of a manufacturing process of a display panel according to an embodiment of the present application;
fig. 5 is a schematic diagram showing a manufacturing process of a display panel according to an embodiment of the present application;
fig. 6 is a schematic diagram fifth illustrating a manufacturing process of a display panel according to an embodiment of the present application;
fig. 7 is a schematic diagram showing a manufacturing process of a display panel according to an embodiment of the present application;
fig. 8 is a schematic diagram seventh illustrating a manufacturing process of a display panel according to an embodiment of the present application;
fig. 9 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a display module according to an embodiment of the application.
Reference numerals illustrate:
100-a display panel;
110-a support layer;
120-a light emitting array layer; 121-a frame part; 122-a first light hole; 123-a first light-transmitting filler layer;
130-a light shielding layer; 131-extensions;
140-a transition layer;
150-a functional layer; 151-second light holes; 152-a second light transmissive fill layer;
160-an optical cement layer;
170-an encapsulation layer;
180-base station;
200-under screen feature.
Detailed Description
In the related art, the camera hole on the display panel is shielded by arranging annular ink on the transparent cover plate, the annular ink is arranged on the transparent cover plate in a silk-screen printing mode, the silk-screen printing process precision is low, the formed annular ink is wider, the frame of the camera hole is wider, and the display effect and the attractiveness of the display panel are affected. And still press from both sides between display panel's luminescent layer and the transparent cover plate and be equipped with other retes, the light that luminescent layer sent gets into in the hole of making a video recording from the lateral wall in the hole of making a video recording that other retes are close to easily, leads to making a video recording Kong Louguang, that is to say, annular printing ink's shading effect is not good. In addition, not filling in the hole of making a video recording not only can reduce display panel's structural strength, can lead to display panel to use as flexible display panel in addition, take place the problem of stress concentration in the bending process, lead to each rete in the flexible display panel to appear the intraformational crackle or the problem of peeling off between the layers, reduce display panel's structural stability.
Aiming at the technical problems, the embodiment of the application provides a display panel, a preparation method of the display panel and a display module. The display panel comprises a light emitting array layer, wherein a substrate is arranged on one side of the light emitting array layer, a first light hole is formed in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer. Through at first light trap intussuseption packing first printing opacity filling layer, first printing opacity filling layer not only can improve display panel's structural stability and intensity, when display panel uses as flexible display panel moreover, first printing opacity filling layer can reduce display panel's stress concentration when crooked, avoids each rete to appear in the flexible display panel in the problem that crack or interlaminar peeling off, improves display panel's structural stability to be favorable to prolonging display panel's life.
Simultaneously, through setting up the shielding layer in the one side of deviating from the substrate of luminous array layer, the shielding layer is close to first light trap setting, and encircles the at least partial periphery of first light trap to can prevent the light that luminous array layer sent from the light trap side entering light trap, make the shielding layer to the shading effect of light trap better. And then not only can avoid the light leak of light trap and influence the result of use of the functional device under the screen, need not to set up annular printing ink moreover on transparent cover plate, be favorable to improving display effect and the pleasing to the eye degree of display panel.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1 to 8 and 10, in a first aspect, an embodiment of the present application provides a display panel 100 including a light emitting array layer 120.
Illustratively, the light emitting array layer 120 includes a substrate, a driving array layer, and a light emitting layer, which are sequentially stacked. When the display panel 100 is a flexible display panel 100 that can be bent, the substrate may be a flexible substrate such as polyimide, and when the display panel 100 is a display panel 100 that does not have a bending function, the substrate may be a rigid substrate such as silicon oxide. The light emitting layer may include a liquid crystal material, or may include an organic light emitting material, or may include other materials known to those skilled in the art that can realize a light emitting function.
Illustratively, the drive array layer is provided with a drive unit including transistors, capacitors, and various signal traces. The light emitting layer includes a pixel defining layer and a plurality of light emitting cells. The number of the light emitting units and the driving units in the driving array layer can be equal, and the plurality of light emitting units and the plurality of driving units are arranged in a one-to-one correspondence. The pixel defining layer is located between adjacent light emitting cells. The light emitting unit may include an anode layer, a hole transporting layer, a hole injecting layer, an organic light emitting layer, an electron injecting layer, an electron transporting layer, and a cathode layer, which are stacked. The driving units in the driving array layer are connected with the anode layer or the cathode layer to provide electric signals for the light emitting units.
The light emitting array layer 120 is provided with first light holes 122, and the first light holes 122 penetrate through the light emitting array layer 120 in a thickness direction of the light emitting array layer 120. The first light holes 122 are filled with a first light-transmitting filling layer 123. Alternatively, the first light-transmitting filling layer 123 may be a light-transmitting filling glue, a light-transmitting glass or a light-transmitting inorganic material, and may be other light-transmitting filling materials known to those skilled in the art. The first light-transmitting filling layer 123 may be made of a material with high light transmittance, such as high-transmittance optical adhesive.
The first light holes 122 may be used in cooperation with the under-screen functional device 200, and the under-screen functional device 200 may include, but is not limited to, an under-screen camera, an under-screen fingerprint identification, an under-screen distance sensor, etc., and the under-screen functional device may implement a specific auxiliary function of the display panel.
The first light transmission hole 122 is filled with the first light transmission filling layer 123, and on the one hand, the structural stability and the structural strength of the display panel 100 can be improved. On the other hand, when the first light-transmitting filling layer 123 is made of an organic material, stress concentration of the flexible display panel during bending can be reduced, the problem that each film layer in the flexible display panel is cracked or peeled off from each other in layers is avoided, structural stability of the display panel is improved, quality of the flexible display panel 100 is guaranteed, and service life of the flexible display panel 100 is prolonged.
The light shielding layer 130 is disposed on a side of the light emitting array layer 120 facing away from the substrate, and the light shielding layer 130 is disposed near the first light holes 122 and surrounds at least a portion of the outer circumference of the first light holes 122.
For example, when the first light-transmitting holes 122 are disposed near the edge of the light-emitting array layer 120, the light-shielding layer 130 may surround only a portion of the first light-transmitting holes 122 that is far from the edge of the light-emitting array layer 120. When the first light-transmitting holes 122 are disposed at the inner region of the light-emitting array layer 120, the light-shielding layer 130 may surround the outer circumference of the first light-transmitting holes 122.
The light shielding layer 130 is located on one side of the light emitting array layer 120 away from the substrate, and can effectively shield light emitted by the light emitting array layer 120 from being dispersed towards the direction of the light hole, so that light emitted by the light emitting array layer 120 is prevented from entering the light hole through the side wall of the light hole, and the light shielding effect of the light shielding layer 130 on the light shielding hole is good.
The light shielding layer 130 can be arranged on one side of the light emitting array layer 120, which is far away from the substrate, in a vapor deposition mode, the vapor deposition process is high in precision, and the formed light shielding layer 130 is high in position precision and size precision, so that the edge of the light shielding layer 130 cannot be widened outwards, the larger size of the frame of the light hole is avoided, and the display effect and the aesthetic degree of the display panel 100 are improved.
At least part of the orthographic projection of the light shielding layer 130 on the light emitting array layer 120 is located in the first light holes 122. For example, the light shielding layer 130 may be an annular light shielding layer 130 surrounding the first light transmitting holes 122, and an inner annular side of the annular light shielding layer 130 may extend in a radial direction of the light shielding holes and shield edges of the first light transmitting holes 122. Thus, not only the light shielding effect of the light shielding layer 130 can be improved, but also the wall of the first light transmitting hole 122 can be shielded, so that the display effect and the aesthetic degree of the display panel 100 can be further improved.
In an alternative embodiment, the light shielding layer 130 may include an extension portion 131, where a front projection of the extension portion 131 on the light emitting array layer 120 is located in the first light hole 122, and the extension portion 131 overlaps a portion of the first light-transmitting filling layer 123. The first light-transmitting filling layer 123 can play a bearing role on the extension portion 131 of the light-shielding layer 130, so as to ensure that the light-shielding layer 130 can be smoothly formed by evaporation.
In an alternative embodiment, the extension length L of the extension 131 along the radial direction of the first light transmitting hole 122 ranges from 0.05mm to 0.15mm. For example, the extension length L of the extension portion 131 in the radial direction of the first light transmitting hole 122 may be set to 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.13mm, 0.15mm, etc. according to actual needs. Therefore, the shielding function of the extension part 131 can be realized, the area of the first light holes 122 shielded by the extension part 131 can be reduced, and the frame of the light holes can be reduced.
The side of the light emitting array layer 120 near the first light holes 122 may be provided with a frame part 121, and the frame part 121 surrounds at least a portion of the outer circumference of the first light holes 122, and illustratively, the frame part 121 may surround a portion of the outer circumference of the first light holes 122 or the entire outer circumference according to actual needs. The frame portion 121 may encapsulate and protect an edge of the light emitting array layer 120 facing the first light holes 122. The light shielding layer 130 is located at a side of the frame portion 121 facing away from the substrate, so as to avoid shielding a portion of the light emitting array layer 120, which is close to the frame portion 121, from the light shielding layer 130.
In an alternative embodiment, along the radial direction of the first light holes 122, a side of the light shielding layer 130 away from the first light holes 122 is closer to the first light holes 122 than a side of the frame portion 121 away from the first light holes 122. For example, along the radial direction of the first light holes 122, the orthographic projection of the side of the light shielding layer 130 away from the first light holes 122 on the light emitting array layer 120 may be flush with the side of the frame 121 away from the first light holes 122; or, a space is formed between the orthographic projection of the side, away from the first light holes 122, of the light shielding layer 130 on the light emitting array layer 120 and the side, away from the first light holes 122, of the frame portion 121, where the space is set to ensure that the error amount of the light shielding layer 130 in the forming process does not shield the portion, close to the frame portion 121, of the light emitting array layer 120.
In an alternative embodiment, along the radial direction of the first light hole 122, a side of the frame portion 121 near the first light hole 122 abuts against the first light-transmitting filling layer 123, so as to ensure structural stability of the structural display panel. Optionally, the orthographic projection of the side of the frame portion 121 near the first light hole 122 on the light shielding layer 130 is located inside the light shielding layer 130, so that the light shielding layer 130 can form shielding on the side of the frame portion 121 near the first light hole 122, which is favorable for improving the display effect and the aesthetic degree of the display panel.
In an alternative embodiment, the thickness of the light shielding layer 130 is smaller than that of the bezel portion 121, thereby facilitating control of the thickness of the display panel.
The side of the light emitting array layer 120 facing away from the substrate is provided with a transition layer 140, the transition layer 140 and the light shielding layer 130 are arranged in the same layer, and one surface of the transition layer 140 facing away from the light emitting array layer 120 is flush with one surface of the light shielding layer 130 facing away from the light emitting array layer 120. The transition layer 140 may be a liquid optical adhesive, and is convenient to apply, and easily eliminates a height difference between the light emitting array layer 120 and the light shielding layer 130, so that not only tightness and reliability of adhesion between the subsequent functional layer 150 and the light emitting array layer 120 can be ensured, but also a height difference caused by the light shielding layer 130 can be eliminated, and flatness of the display panel 100 can be ensured. Of course, the transition layer 140 may be other liquid curable materials that may be coated.
In an alternative embodiment, along the radial direction of the first light holes 122, a side of the transition layer 140, which is close to the light shielding layer 130, abuts against a side of the light shielding layer 130, which is far from the first light holes 122. Thereby ensuring continuity of the light shielding layer 130 and the transition layer 140 and structural strength of the display panel.
The display panel 100 further includes a functional layer 150, where the functional layer 150 is disposed on a side of the transition layer 140 facing away from the light emitting array layer 120, so as to better implement a display function of the display panel 100. The functional layer 150 is provided with a second light hole 151 communicated with the first light hole 122, and the orthographic projection of the second light hole 151 on the light emitting array layer 120 covers the first light hole 122 and part of the light shielding layer 130, so that the functional layer 150 can be prevented from shielding the first light hole 122 to ensure the light transmission areas of the first light hole 122 and the second light hole 151.
In an alternative embodiment, the orthographic projection of the hole wall of the second light-transmitting hole 151 on the light-emitting array layer 120 is located inside the orthographic projection of the light-shielding layer 130 on the light-emitting array layer 120, so that the portion of the functional layer 150 close to the second light-transmitting hole 151 is overlapped on the light-shielding layer 130, and further, the functional layer 150 completely covers the side of the light-emitting array layer 120 facing away from the substrate.
The functional layer may include at least one of a polarizing layer and a touch layer.
In a first alternative embodiment, the functional layer may include a polarizing layer disposed on a side of the transition layer 140 facing away from the light emitting array layer 120, so as to assist the display panel in better achieving a display function.
In a second alternative embodiment, the functional layer may include a touch layer, where the touch layer is disposed on a side of the transition layer 140 facing away from the light emitting array layer 120, so that the display panel may implement a touch function.
In a third alternative embodiment, the functional layer may include a polarizing layer and a touch layer at the same time, where the polarizing layer is disposed on a side of the transition layer 140 facing away from the light emitting array layer 120, and the touch layer is disposed on a side of the polarizing layer facing away from the light emitting array layer; or, the touch layer is disposed on a side of the transition layer 140 facing away from the light emitting array layer 120, and the polarizing layer is disposed on a side of the touch layer facing away from the light emitting array layer; therefore, the display panel can be assisted to better realize the display function, and the display panel can realize the touch control function.
In an alternative embodiment, the second light holes 151 are filled with a second light-transmitting filling layer 152, and a surface of the second light-transmitting filling layer 152 facing the first light-transmitting filling layer 123 is connected to the first light-transmitting filling layer 123. Alternatively, the second light-transmitting filling layer 152 may be a light-transmitting filling glue, a light-transmitting glass or a light-transmitting inorganic material, or may be other light-transmitting filling materials known to those skilled in the art. The second light-transmitting filling layer 152 may be made of a material with high light transmittance, such as high-transmittance optical adhesive. When the second light-transmitting filling layer 152 is made of an organic adhesive, the stress concentration of the display panel 100 during bending can be reduced, which is beneficial to improving the structural reliability of the display panel 100.
In an alternative embodiment, the side of the second light transmissive filling layer 152 facing away from the first light transmissive filling layer 123 is flush with the side of the functional layer 150 facing away from the light emitting array layer 120. Thereby can prevent to laminate and form the bubble influence laminating between other retes of the one side of deviating from first printing opacity filling layer 123 of second printing opacity filling layer 152 and second printing opacity filling layer 152, and then not only can guarantee laminating effect and the display effect of other retes in second light trap 151 within range, can guarantee the result of use of function device under the screen moreover.
The display panel 100 may further include an encapsulation layer 170, where a side of the functional layer 150 facing away from the light emitting array layer 120, and a side of the second light-transmitting filling layer 152 facing away from the first light-transmitting filling layer 123 is covered with an optical adhesive layer 160, and the encapsulation layer 170 is attached to a side of the optical adhesive layer 160 facing away from the functional layer 150. Therefore, the compactness and reliability of the adhesion of the encapsulation layer 170 can be ensured, and annular ink does not need to be arranged on the encapsulation layer 170, so that the frame of the light holes is reduced, and the display effect and the attractiveness of the display panel 100 are improved. Alternatively, the encapsulation layer 170 may be a flexible encapsulation film to accommodate flexible display panels, or may be a glass cover plate to accommodate a fixed-shape display panel.
In an alternative embodiment, the optical adhesive layer 160 and the second light-transmitting filling layer 152 are integrally formed, so that not only can the optical adhesive layer and the second light-transmitting filling layer be formed together, the efficiency is improved, but also the seam can be reduced, which is beneficial to improving the structural strength of the display panel 100.
The display panel 100 may further include a support layer 110, the support layer 110 being disposed on a side of the light emitting array layer 120 having a substrate; the first light holes 122 extend toward a side of the support layer 110 and penetrate the support layer 110, and the first light-transmitting filling layer 123 extends toward a side of the support layer 110 and fills a portion of the first light holes 122 penetrating the support layer 110. For example, when the display panel 100 is a bendable flexible display panel 100, the support layer 110 may be a flexible material; when the display panel 100 is of a fixed shape, the support layer 110 may be a rigid material.
On the one hand, the supporting layer 110 may support the display panel 100 to ensure the structural reliability of the display panel 100; on the other hand, the light emitting array layer 120 and the supporting layer 110 may be perforated integrally, which is not only beneficial to improving the manufacturing efficiency of the display panel 100, but also ensures that the sizes of the light holes of the light emitting array layer 120 and the supporting layer 110 are consistent and aligned.
In summary, the display panel 100 provided in the embodiment of the application includes a light emitting array layer 120, the light emitting array layer 120 has a substrate, a first light hole 122 is disposed in the light emitting array layer 120, and the first light hole 122 penetrates through the light emitting array layer 120 along the thickness direction of the display panel 100. Through filling first printing opacity filling layer 123 in first light trap 122, first printing opacity filling layer 123 not only can improve display panel 100's structural stability and intensity, and when display panel 100 uses as flexible display panel in addition, first printing opacity filling layer 123 can reduce display panel 100 stress concentration when crooked, avoids each rete to appear in the flexible display panel crack or the problem that the interlaminar peeling off, improves display panel's structural stability to be favorable to prolonging display panel 100's life.
Meanwhile, the light shielding layer 130 is arranged on one side, away from the substrate, of the light emitting array layer 120, the light shielding layer 130 is close to the first light holes 122 and surrounds at least part of the periphery of the first light holes 122, so that light emitted by the light emitting array layer 120 can be prevented from entering the light holes from the side faces of the light holes, and the light shielding effect of the light shielding layer 130 on the light holes is good. And furthermore, the use effect of the functional device under the screen can be prevented from being influenced by light leakage of the light holes, and annular ink does not need to be arranged on the packaging layer 170, so that the display effect and the attractiveness of the display panel 100 are improved.
Referring to fig. 1 to 9, in a second aspect, an embodiment of the present application provides a method for manufacturing a display panel 100, including:
s100, providing a light emitting array layer.
Illustratively, providing a light emitting array layer may include: a base 180 is provided, a support layer 110 is provided on the base 180, and a light emitting array layer 120 is provided on the support layer 110.
S200, a first light hole is formed in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer, referring to fig. 2.
Illustratively, the first light holes 122 are formed in the light emitting array layer 120, and the first light holes 122 may penetrate through both the light emitting array layer 120 and the support layer 110.
S300, filling the first light-transmitting filling layer in the first light-transmitting holes, and referring to FIG. 3.
Illustratively, the first light-transmitting filling layer 123 fills both within the first light-transmitting holes 122 in the light-emitting array layer 120 and within the first light-transmitting holes 122 of the support layer 110.
S400, a shading layer is formed on one side, away from the substrate of the light emitting array layer, is close to the first light holes, and surrounds at least part of the peripheries of the first light holes, and referring to FIG. 4.
For example, the light shielding layer 130 is formed on a side of the light emitting array layer 120 facing away from the substrate by evaporation, and a portion of the light shielding layer 130 may overlap the frame portion 121 of the light emitting array layer 120 and another portion may overlap the first light transmitting filling layer 123.
Further, an embodiment of the present application provides a method for manufacturing the display panel 100, which further includes:
s500, a transition layer is disposed on a side of the light emitting array layer facing away from the substrate, referring to fig. 5. The transition layer and the shading layer are arranged on the same layer, and one surface of the transition layer, which is away from the luminous array layer, is flush with one surface of the shading layer, which is away from the luminous array layer.
S600, covering the functional layer provided with the second light holes on the transition layer, and enabling orthographic projection of the second light holes on the light emitting array layer to cover the first light holes, as shown in FIG. 6.
S700, a second light-transmitting filling layer is filled in the second light-transmitting hole, one face, facing the first light-transmitting filling layer, of the second light-transmitting filling layer is connected with the first light-transmitting filling layer, and one face, facing away from the first light-transmitting filling layer, of the second light-transmitting filling layer can be flush with one face, facing away from the light-emitting array layer, of the functional layer, and referring to FIG. 7.
S800, the surface of the functional layer, which is away from the light emitting array layer, and the surface of the second light-transmitting filling layer, which is away from the first light-transmitting filling layer, are covered with the optical adhesive layer, and the packaging layer is attached to the surface of the optical adhesive layer, which is away from the functional layer, referring to FIG. 8.
S900, the base is removed, and a display panel is obtained, see fig. 1.
The display panel 100 manufactured by the manufacturing method of the display panel 100 provided by the embodiment of the application comprises a light emitting array layer 120, wherein a first light hole 122 is arranged in the light emitting array layer 120, and the first light hole 122 penetrates through the light emitting array layer 120 along the thickness direction of the display panel 100. Through filling first printing opacity filling layer 123 in first light trap 122, first printing opacity filling layer 123 not only can improve display panel 100's structural stability and intensity, and when display panel 100 uses as flexible display panel in addition, first printing opacity filling layer 123 can reduce display panel 100 stress concentration when crooked, avoids each rete to appear in the flexible display panel crack or the problem that the interlaminar peeling off, improves display panel's structural stability to be favorable to prolonging display panel 100's life.
Meanwhile, the light shielding layer 130 is arranged on one side, away from the substrate of the light emitting array layer 120, the light shielding layer 130 is close to the first light holes 122 and surrounds at least part of the periphery of the first light holes 122, so that light emitted by the light emitting array layer 120 can be prevented from entering the light holes from the side surfaces of the light holes, and the light shielding effect of the light shielding layer 130 on the light holes is good. And furthermore, the use effect of the functional device under the screen can be prevented from being influenced by light leakage of the light holes, and annular ink does not need to be arranged on the packaging layer 170, so that the display effect and the attractiveness of the display panel 100 are improved.
Referring to fig. 10, in a third aspect, an embodiment of the present application provides a display module, including an under-screen functional device 200 and a display panel 100, where the under-screen functional device 200 is located on a backlight side of the display panel 100, and an orthographic projection of the under-screen functional device 200 on a light emitting array layer 120 of the display panel 100 is located in a first light hole 122 of the light emitting array layer 120. So that the under-screen function device 200 can realize its own function through the first light-transmitting holes 122.
The display module according to the embodiment of the application includes the display panel 100, so the display panel 100 has the beneficial effects, and the display module is also not described herein.
In the foregoing description, it will be appreciated that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be connected, for example, fixedly, indirectly, via an intermediary, or in any combination of two elements in communication or in interaction, unless explicitly stated and limited otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description of the present application based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (17)
1. The display panel is characterized by comprising a light emitting array layer, wherein one side of the light emitting array layer is provided with a substrate, a first light hole is arranged in the light emitting array layer, and the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer; a first light-transmitting filling layer is filled in the first light-transmitting hole; a light shielding layer is arranged on one side, away from the substrate, of the light emitting array layer, is close to the first light holes, and surrounds at least part of the periphery of the first light holes;
the shading layer comprises an extension part, and the orthographic projection of the extension part on the light emitting array layer is positioned in the first light holes and is overlapped with part of the first light-transmitting filling layer.
2. The display panel according to claim 1, wherein an extension length of the extension portion in a radial direction of the first light-transmitting hole ranges from 0.05mm to 0.15mm.
3. The display panel according to claim 1, wherein a side of the light emitting array layer adjacent to the first light holes is provided with a frame portion surrounding at least a part of the outer periphery of the first light holes, and the light shielding layer is located at a side of the frame portion facing away from the substrate.
4. The display panel according to claim 3, wherein a side of the light shielding layer away from the first light transmitting holes is closer to the first light transmitting holes than a side of the frame portion away from the first light transmitting holes in a radial direction of the first light transmitting holes.
5. The display panel according to claim 4, wherein a side of the frame portion adjacent to the first light hole abuts against the first light-transmitting filling layer in a radial direction of the first light hole.
6. The display panel according to claim 5, wherein a thickness of the light shielding layer is smaller than a thickness of the frame portion.
7. The display panel according to claim 1, wherein a side of the light emitting array layer facing away from the substrate is provided with a transition layer, the transition layer is arranged on the same layer as the light shielding layer, and a side of the transition layer facing away from the light emitting array layer is flush with a side of the light shielding layer facing away from the light emitting array layer.
8. The display panel according to claim 7, wherein a side of the transition layer adjacent to the light shielding layer abuts against a side of the light shielding layer away from the first light transmitting hole in a radial direction of the first light transmitting hole.
9. The display panel according to claim 7, further comprising a functional layer disposed on a side of the transition layer facing away from the light emitting array layer, wherein a second light hole communicating with the first light hole is disposed in the functional layer; the orthographic projection of the second light holes on the light emitting array layer covers the first light holes and part of the shading layer.
10. The display panel of claim 9, wherein the functional layer comprises at least one of a polarizing layer and a touch layer.
11. The display panel of claim 9, wherein the second light-transmitting holes are filled with a second light-transmitting filling layer;
one surface of the second light-transmitting filling layer facing the first light-transmitting filling layer is connected with the first light-transmitting filling layer;
and/or the number of the groups of groups,
one surface of the second light-transmitting filling layer, which is away from the first light-transmitting filling layer, is flush with one surface of the functional layer, which is away from the light-emitting array layer.
12. The display panel according to claim 11, further comprising an encapsulation layer, wherein an optical adhesive layer is disposed on a surface of the functional layer facing away from the light emitting array layer, and the encapsulation layer is attached to a surface of the optical adhesive layer facing away from the functional layer.
13. The display panel of claim 12, wherein the optical glue layer is integral with the second light transmissive filler layer.
14. The display panel according to any one of claims 1 to 13, further comprising a support layer provided on a side of the light emitting array layer having the substrate;
the first light holes extend towards one side where the supporting layer is located and penetrate through the supporting layer.
15. A method for manufacturing a display panel, comprising:
providing a light emitting array layer;
forming a first light hole in the light emitting array layer, wherein the first light hole penetrates through the light emitting array layer along the thickness direction of the light emitting array layer;
a first light-transmitting filling layer is filled in the first light-transmitting hole;
forming a light shielding layer on one side of the light emitting array layer, which is far away from the substrate of the light emitting array layer, wherein the light shielding layer is arranged close to the first light holes and surrounds at least part of the periphery of the first light holes;
and extending the light shielding layer towards the direction close to the first light transmission holes to form an extension part, and overlapping the extension part with part of the first light transmission filling layer.
16. The method of claim 15, wherein a transition layer is disposed on a side of the light emitting array layer facing away from the substrate, the transition layer is disposed on the same layer as the light shielding layer, and a side of the transition layer facing away from the light emitting array layer is flush with a side of the light shielding layer facing away from the light emitting array layer.
17. A display module comprising an under-screen functional device and a display panel according to any one of claims 1-14, wherein the under-screen functional device is located on a backlight side of the display panel, and at least a portion of an orthographic projection of the under-screen functional device on a light emitting array layer of the display panel is located in a first light transmitting hole of the light emitting array layer.
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| WO2023225965A1 (en) * | 2022-05-26 | 2023-11-30 | 京东方科技集团股份有限公司 | Display module and display apparatus |
| CN115035793B (en) * | 2022-06-10 | 2023-10-24 | 武汉天马微电子有限公司 | Display screen, display device and preparation method of display screen |
| CN117119828A (en) * | 2023-02-16 | 2023-11-24 | 荣耀终端有限公司 | Display screen and electronic equipment |
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