CN112086017B - Display panel, display device and preparation method of display panel - Google Patents
Display panel, display device and preparation method of display panel Download PDFInfo
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Abstract
The embodiment of the application provides a display panel, a display device and a preparation method of the display panel. The display panel includes a display area including an aperture area, the display panel further including: a base layer; the shading structure is arranged on one side of the basal layer and provided with an opening, and the shading structure corresponds to the peripheral area in the hole area; the first dimension of the light shielding structure from the inner periphery to the outer periphery along the radial direction of the hole area is smaller than the design frame value of the hole area. According to the embodiment of the application, the fitting requirement of smaller frame design values of the frames can be met, the design of AA Hole narrow frames is realized, and the Panle cost of the display panel is reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, a display device and a preparation method of the display panel.
Background
In order to increase the screen occupation ratio, most of products are designed to be AA (Active Area) Hole products, a camera punches holes in an AA Area, and the screen occupation ratio is increased.
Currently, the width of the frame of the AA Hole is relatively wide, and in order to reduce the adjustment of each process section of the frame, there is a problem in the Beam attaching precision of the light shielding structure, and the Beam attaching precision is relatively low, for example, 0.6mm (millimeter) -1.0mm, so that the frame of the Hole area is difficult to reduce.
Disclosure of Invention
The application provides a display panel, a display device and a preparation method of the display panel aiming at the defects of the existing mode, and is used for solving the technical problem that the frame of a hole area is large due to lower attaching precision of a shading structure in the prior art.
In a first aspect, embodiments of the present application provide a display panel including a display area, the display area including a hole area, the display panel further including:
a base layer;
the shading structure is arranged on one side of the basal layer and provided with an opening, and the shading structure corresponds to the peripheral area in the hole area; the first dimension of the light shielding structure from the inner periphery to the outer periphery along the radial direction of the hole area is smaller than the design frame value of the hole area.
In one possible implementation, the light shielding structure includes a black glue layer or a light absorbing glue layer corresponding to a peripheral region in the hole region;
the inner periphery of the black glue layer or the light absorbing glue layer forms the boundary of the opening.
In one possible implementation, the light shielding structure further includes: a transparent adhesive layer arranged on one side of the substrate layer, wherein the transparent adhesive layer corresponds to the peripheral area in the hole area;
the black adhesive layer or the light absorption adhesive layer is correspondingly arranged on one side of the transparent adhesive layer far away from the basal layer.
In one possible implementation, the height of the side of the light shielding structure away from the substrate layer is greater than the height of the side of the pixel structure away from the substrate layer in the display area around the aperture area in a direction perpendicular to the substrate layer.
In one possible implementation, a side of the light shielding structure remote from the base layer is in front projection on the base layer, closer to the pixel structure than a side of the light shielding structure closer to the base layer.
In one possible implementation, the side of the pixel structure away from the substrate layer is provided with an encapsulation layer;
the encapsulation layer surrounds the light shielding structure.
In one possible implementation, the encapsulation layer and the light shielding structure are sequentially provided with a flat layer and a touch layer on a side far away from the substrate layer.
In one possible implementation, the light shielding structure has a thickness in a direction perpendicular to the base layer of 8 micrometers to 20 micrometers.
In a second aspect, embodiments of the present application further provide a display device, including: the display panel of the first aspect.
In a third aspect, embodiments of the present application further provide a method for manufacturing a display panel, which is applied to the display panel of the first aspect, including:
printing a shading adhesive structure on one side of the substrate layer and corresponding to a hole area of a display area of the display panel; the shading adhesive structure is provided with an initial opening;
curing the shading glue structure to obtain a shading structure; the shading structure is provided with an opening, corresponds to the peripheral area in the hole area, and along the radial direction of the hole area, the first dimension of the shading structure from the inner periphery to the outer periphery is smaller than the design frame value of the hole area.
In one possible implementation, the printing of the light shielding glue structure on one side of the substrate layer and corresponding to the hole area of the display panel includes:
printing a transparent adhesive layer on one side of the substrate layer and corresponding to the hole area of the display panel;
printing a black adhesive layer or a light absorbing adhesive layer on one side of the transparent adhesive layer far away from the substrate layer and corresponding to the peripheral area in the hole area of the display panel; the black glue layer or the light absorbing glue layer has an initial opening.
The beneficial technical effects that technical scheme that this application embodiment provided brought include:
the embodiment of the application is characterized in that a shading glue structure is printed on one side of the substrate layer and at a position corresponding to a hole area of a display area of the display panel, and then curing treatment is carried out to obtain a shading structure for shading light rays emitted by a pixel structure of the display area. According to the preparation method, the attaching precision requirement of the shading structure can be reduced, so that the first size of the shading structure, which points to the outer periphery from the inner periphery, is smaller than the design frame value of the Hole region along the radial direction of the Hole region, the attaching requirement of the frame, which is smaller than the design frame value, is met, the design of an AA Hole narrow frame is realized, and the Panle cost of the display panel is reduced.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display panel in a state after a transparent adhesive layer 123 is printed in a manufacturing process of the display panel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present application.
Reference numerals:
100-display area;
110-a substrate layer;
120-shading structure, 121-opening, 122-black glue layer and 123-transparent glue layer;
130-pixel structure;
140-packaging layer;
150-a flat layer;
160-touch layer.
Detailed Description
Examples of embodiments of the present application are illustrated in the accompanying drawings, in which like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments.
The embodiment of the application provides a display panel, referring to fig. 1, the display panel includes a display area 100, the display area 100 includes a hole area, and the display panel further includes: a base layer 110 and a light shielding structure 120.
The light shielding structure 120 is arranged on one side of the substrate layer 110, the light shielding structure 120 is provided with an opening 121, and the light shielding structure 120 corresponds to a peripheral area in the hole area; the first dimension of the light shielding structure 120 from the inner periphery toward the outer periphery along the radial direction of the aperture area is smaller than the design rim value of the aperture area. Optionally, the design bezel value is no greater than 0.5mm (millimeters).
According to the display panel disclosed by the embodiment of the application, the first size of the shading structure 120 from the inner periphery to the outer periphery is smaller than the design frame value of the Hole area along the radial direction of the Hole area, so that the smaller fitting requirement of the design frame value of the frame is met, the design of an AA Hole narrow frame is realized, and the Panle cost of the display panel is reduced.
In some embodiments, referring to fig. 1, the light shielding structure 120 includes a black glue layer 122 or a light absorbing glue layer corresponding to a peripheral region in the hole region. The inner periphery of the black glue layer 122 or the light absorbing glue layer forms the boundary of the opening 121.
As an example, referring to fig. 1, the light shielding structure 120 includes a black adhesive layer 122, and an inner periphery of the black adhesive layer 122 forms a boundary of the opening 121. It is conceivable that the arrangement of the light absorbing glue layer is consistent with that of the black glue layer 122, the light absorbing glue layer is used for shading through light absorption, and the black glue layer 122 is used for shading through black shading light.
As an example, the black glue layer 122 is annular in shape, and the opening 121 is used for placing a camera. Alternatively, the distance between the inner periphery and the outer periphery of the black glue layer 122 is within 0.1 mm.
Alternatively, the black glue layer 122 may be rectangular in shape, and the middle of the rectangle has at least one opening 121 for correspondingly disposing at least one camera. In practical applications, the shape of the black glue layer 122 or the light absorbing glue layer may be designed according to the design of the product.
In some embodiments, the light shielding structure 120 further includes: the transparent adhesive layer 123 is disposed on one side of the substrate layer 110, and the transparent adhesive layer 123 corresponds to a peripheral region in the hole region. The black adhesive layer 122 or the light absorbing adhesive layer is correspondingly disposed on one side of the transparent adhesive layer 123 away from the substrate layer 110.
As an example, referring to fig. 2, a transparent adhesive layer 123 is shown in contact with the hole area of the display panel. The transparent adhesive layer 123 is transparent, after printing one layer of transparent adhesive layer 123 in the preparation process of the display panel, a black adhesive layer 122 or a light absorbing adhesive layer can be prepared on one side of the transparent adhesive layer 123 far away from the substrate layer 110, and when the camera is arranged, holes can be dug at the opening 121, so that the shape of the transparent adhesive layer 123 is matched with the shape of the black adhesive layer 122 or the light absorbing adhesive layer. That is, the transparent adhesive layer 123 corresponds to a peripheral region in the hole region.
In some embodiments, referring to fig. 3, the height of the side of the light shielding structure 120 away from the substrate layer 110 is greater than the height of the side of the pixel structure 130 in the display region 100 around the aperture region away from the substrate layer 110 in the direction perpendicular to the substrate layer 110.
Alternatively, referring to fig. 3, the arrows indicate light rays, and after the light rays of the pixel structure 130 are blocked by the light shielding structure 120, the light emitting path is limited, so that the display area corresponding to the light shielding structure 120 does not display an image.
In some embodiments, referring to fig. 3, the front projection of the side of the light shielding structure 120 away from the substrate layer 110 on the substrate layer 110 is closer to the pixel structure 130 than the front projection of the side of the light shielding structure 120 closer to the substrate layer 110.
In some embodiments, referring to fig. 3, an encapsulation layer 140 is disposed on a side of the pixel structure 130 remote from the base layer 110. The encapsulation layer 140 surrounds the light shielding structure 120.
Optionally, referring to fig. 3, the shapes of the contact surfaces of the encapsulation layer 140 and the light shielding structure 120 are matched, and the contact surfaces of the encapsulation layer 140 and the light shielding structure 120 are inclined planes with a predetermined inclination angle. In practical application, since the encapsulation layer 140 includes an organic layer, an inclined plane is correspondingly formed when the light shielding structure 120 is encapsulated.
Alternatively, as shown in fig. 3, the height of the encapsulation layer 140 along the direction perpendicular to the base layer 110 coincides with the height of the light shielding structure 120 along the direction perpendicular to the base layer 110.
In some embodiments, referring to fig. 4, a flat layer 150 and a touch layer 160 are sequentially disposed on a side of the encapsulation layer 140 and the light shielding structure 120 away from the substrate layer 110.
The inventors of the present application further found through research that the FMLOC (Flexible Multi-Layer On Cell) process may have the IJP (Ink Jet Printing) process, the black glue Layer 122, the transparent glue Layer 123 and the light absorbing glue Layer of the light shielding structure 120 may be printed in the AA Hole area by using the IJP, and the light shielding structure 120 may have a flat and light shielding effect.
In some embodiments, the height of the light shielding structure 120 along a direction perpendicular to the base layer 110 is 8 μm (micrometers) to 20 μm. Optionally, the numerical ranges in the embodiments of the present application include upper and lower limit values, for example, the height range of the light shielding structure 120 along the direction perpendicular to the substrate layer 110 includes 8 μm and 20 μm, and the whole description is omitted.
Alternatively, the black glue layer 122, the transparent glue layer 123 and the light absorbing glue layer each have a height ranging from 8 μm to 10 μm in a direction perpendicular to the base layer 110.
Based on the same inventive concept, an embodiment of the present application further provides a display apparatus, including: the display panel of any embodiment of the present application.
Based on the same inventive concept, the embodiment of the present application further provides a method for manufacturing a display panel, which is applied to the display panel of any embodiment of the present application, and as shown in fig. 5, the method for manufacturing a display panel includes the following steps:
s501, printing a shading adhesive structure on one side of the substrate layer 110 and corresponding to a hole area of the display area 100 of the display panel; the shading adhesive structure is provided with an initial opening.
S502, curing the shading structure to obtain a shading structure 120; the light shielding structure 120 has an opening 121, and the light shielding structure 120 corresponds to a peripheral region in the hole region, and a first dimension of the light shielding structure 120 from the inner periphery toward the outer periphery is smaller than a design frame value of the hole region along a radial direction of the hole region.
Alternatively, the shape of the opening 121 is formed after the initial opening is cured.
In some embodiments, curing the light shielding structure to obtain the light shielding structure 120 includes:
referring to fig. 2, a transparent adhesive layer 123 is printed on one side of the base layer 110 and corresponding to the hole area of the display area 100 of the display panel.
Referring to fig. 1, a black adhesive layer 122 or a light absorbing adhesive layer is printed at a side of the transparent adhesive layer 123 remote from the base layer 110 and corresponding to a peripheral region in the hole region of the display region 100 of the display panel; the black glue layer 122 or the light absorbing glue layer has an opening.
Optionally, at one side of the base layer 110 and corresponding to the hole area of the display area 100 of the display panel, the printing the light shielding glue structure includes: a black glue layer 122 or a light absorbing glue layer is printed on one side of the base layer 110 and corresponding to the hole area of the display area 100 of the display panel.
According to the preparation method, the mode of printing the shading adhesive structure is adopted, so that the attaching precision requirement of the shading structure can be reduced, the first size of the shading structure 120 from the inner periphery to the outer periphery is smaller than the design frame value of the Hole region along the radial direction of the Hole region, the attaching requirement of the frame with smaller design frame value is further met, the design of an AA Hole narrow frame is realized, and the Panle cost of the display panel is reduced.
In the process of preparing the light shielding structure, the inventor of the application considers that the width of the frame of the AA Hole is wider, and in order to reduce the adjustment of each process section of the frame, the attaching precision of the light shielding structure 120 is 0.6mm-1.0mm, and the requirement that the frame of the AA Hole is equal to or smaller than 0.5mm cannot be met.
Alternatively, the embodiment of the present application may print the black glue layer 122, the transparent glue layer 123 and the light absorbing glue layer of the light shielding structure 120 in the AA Hole area by using the IJP process of FMLOC, and the formed light shielding structure 120 may have a flat and light shielding effect.
According to the embodiment of the application, the FMLOC IJP process is utilized to print the shading structure 120 shading in the AA Hole area, so that the shading structure 120 is not required to be attached in the subsequent process, and the attaching requirement of smaller design frame value of the frame is further met.
By applying the preparation method of the embodiment of the application, adjustment is performed under the existing process, so that the cost is not increased and the cost of subsequent materials is reduced. Moreover, the embodiment of the application adopts the IJP process, improves the laminating precision of the process, and can adapt to the laminating requirement of smaller design frame value of the frame.
Optionally, the transparent adhesive layer 123, the black adhesive layer 122 and the light absorbing adhesive layer of the light shielding structure 120 are prepared by dripping IJP on the area needing light shielding around the AA Hole, and then performing UV treatment and curing to obtain the light shielding structure 120.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
(1) According to the display panel disclosed by the embodiment of the application, the first size of the shading structure 120 from the inner periphery to the outer periphery is smaller than the design frame value of the Hole area along the radial direction of the Hole area, so that the smaller fitting requirement of the design frame value of the frame is met, the design of an AA Hole narrow frame is realized, and the Panle cost of the display panel is reduced.
(2) According to the preparation method, the mode of printing the shading adhesive structure is adopted, so that the attaching precision requirement of the shading structure can be reduced, the first size of the shading structure 120 from the inner periphery to the outer periphery is smaller than the design frame value of the Hole region along the radial direction of the Hole region, the attaching requirement of the frame with smaller design frame value is further met, the design of an AA Hole narrow frame is realized, and the Panle cost of the display panel is reduced.
(3) The embodiment of the application utilizes the IJP process of FMLOC, and the black glue layer 122, the transparent glue layer 123 and the light absorbing glue layer of the light shielding structure 120 can be printed in the AA Hole area by using IJP, so that the formed light shielding structure 120 can play a role in flattening and shielding light.
(4) According to the embodiment of the application, the FMLOC IJP process is utilized to print the shading structure 120 shading in the AA Hole area, so that the shading structure 120 is not required to be attached in the subsequent process, and the attaching requirement of smaller design frame value of the frame is further met.
Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (8)
1. A display panel comprising a display area, the display area comprising an aperture area, further comprising:
a base layer;
a light shielding structure provided on one side of the base layer, the light shielding structure having an opening, and the light shielding structure corresponding to a peripheral region among the hole regions; along the radial direction of the hole area, the first dimension of the shading structure from the inner periphery to the outer periphery is smaller than the design frame value of the hole area;
the shading structure comprises a black glue layer or a light absorbing glue layer corresponding to the peripheral area in the hole area; the inner periphery of the black adhesive layer or the light absorbing adhesive layer forms the boundary of the opening;
the light shielding structure further includes: a transparent adhesive layer arranged on one side of the substrate layer, wherein the transparent adhesive layer corresponds to the peripheral area in the hole area; the black adhesive layer or the light absorbing adhesive layer is arranged on one side of the transparent adhesive layer away from the basal layer;
the height of one side of the light shielding structure away from the substrate layer is larger than the height of one side of the pixel structure away from the substrate layer in the display area around the hole area along the direction perpendicular to the substrate layer.
2. The display panel of claim 1, wherein a side of the light shielding structure remote from the base layer is closer to the pixel structure than an orthographic projection of a side of the light shielding structure closer to the base layer.
3. The display panel according to claim 1, wherein a packaging layer is provided on a side of the pixel structure away from the substrate layer;
the encapsulation layer surrounds the light shielding structure.
4. The display panel according to claim 3, wherein a flat layer and a touch layer are sequentially disposed on a side of the encapsulation layer and the light shielding structure away from the substrate layer.
5. The display panel of claim 1, wherein the light shielding structure has a height of 8-20 microns in a direction perpendicular to the base layer.
6. A display device, comprising: the display panel of any one of claims 1-5.
7. A method for manufacturing a display panel, applied to the display panel according to any one of claims 1 to 5, comprising:
printing a shading adhesive structure on one side of the basal layer and corresponding to a hole area of a display area of the display panel; the shading adhesive structure is provided with an initial opening;
curing the shading adhesive structure to obtain a shading structure; the light shielding structure is provided with an opening, corresponds to a peripheral area in the hole area, and is smaller than a design frame value of the hole area along the radial direction of the hole area, wherein the first dimension of the light shielding structure from the inner periphery to the outer periphery is smaller than the design frame value of the hole area.
8. The method of manufacturing a display panel according to claim 7, wherein the printing a light shielding paste structure on one side of the base layer and corresponding to the hole area of the display panel comprises:
printing a transparent adhesive layer on one side of the substrate layer and corresponding to the hole area of the display panel;
printing a black adhesive layer or a light absorbing adhesive layer on one side of the transparent adhesive layer far away from the substrate layer and corresponding to the peripheral area in the hole area of the display panel; the black glue layer or the light absorbing glue layer has the initial opening.
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| CN202011061603.4A CN112086017B (en) | 2020-09-30 | 2020-09-30 | Display panel, display device and preparation method of display panel |
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| CN111384141A (en) * | 2020-03-24 | 2020-07-07 | 京东方科技集团股份有限公司 | OLED display panel, manufacturing method thereof and display device |
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| CN111628112B (en) * | 2020-07-02 | 2023-04-18 | 京东方科技集团股份有限公司 | Display panel and display device |
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| CN109001933A (en) * | 2018-08-10 | 2018-12-14 | 厦门天马微电子有限公司 | A kind of display panel, its production method and display device |
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