CN112086017A - 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 a hole area, the display panel further including: a base layer; the shading structure is arranged on one side of the basal layer, is provided with an opening and corresponds to the peripheral area in the hole area; in a radial direction of the aperture region, a first dimension of the light shielding structure from the inner periphery to the outer periphery is smaller than a design frame value of the aperture region. The embodiment of the application can meet the requirement of fitting the frame with a smaller design frame value, realizes the design of the AA Hole narrow frame and reduces the Panle cost of the display panel.
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
The display screen moves to the full screen era, in order to increase the screen occupation ratio, most products are designed to be AA (Active Area effective display Area) Hole products, the camera punches in the AA Area, and the screen occupation ratio is increased.
At present, the width of the border of the AA Hole is wide, and all process sections of the border are adjusted to reduce the width, wherein there is a related problem in the attachment precision of the Beam of the light shielding structure, and the attachment precision of the Beam is low, for example, in the range of 0.6mm (millimeter) to 1.0mm, which causes the border of the Hole area to be difficult to shrink.
Disclosure of Invention
The application aims at the defects of the prior art and provides a display panel, a display device and a preparation method of the display panel, which are used for solving the technical problem that the frame of a hole area is large due to the fact that the attaching precision of a shading structure is low in the prior art.
In a first aspect, an embodiment of the present application provides a display panel, including a display area, where the display area includes a hole area, and the display panel further includes:
a base layer;
the shading structure is arranged on one side of the basal layer, is provided with an opening and corresponds to the peripheral area in the hole area; in a radial direction of the aperture region, a first dimension of the light shielding structure from the inner periphery to the outer periphery is smaller than a design frame value of the aperture region.
In one possible implementation, the light shielding structure includes a black glue layer or a light absorption 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: the transparent adhesive layer is arranged on one side of the substrate layer and corresponds to the peripheral area in the hole area;
the black glue layer or the light absorption glue layer is correspondingly arranged on one side of the transparent glue layer far away from the basal layer.
In one possible implementation, in a direction perpendicular to the base layer, a height of a side of the light shielding structure away from the base layer is greater than a height of a side of the pixel structure away from the base layer in the display region around the aperture region.
In one possible implementation manner, an orthographic projection of a side of the light shielding structure far away from the base layer on the base layer is closer to the pixel structure than a side of the light shielding structure close to the base layer.
In one possible implementation manner, an encapsulation layer is arranged on one side of the pixel structure away from the substrate layer;
the packaging layer surrounds the periphery of the light shielding structure.
In one possible implementation manner, a flat layer and a touch layer are sequentially arranged on one side of each of the encapsulation layer and the light shielding structure, which is far away from the substrate layer.
In one possible implementation, the thickness of the light blocking structure in a direction perpendicular to the base layer is 8-20 microns.
In a second aspect, an embodiment of the present application further provides a display device, including: the display panel of the first aspect.
In a third aspect, an embodiment of the present application further provides a method for manufacturing a display panel, which is applied to the display panel of the first aspect, and includes:
printing a shading glue structure on one side of the substrate layer and at a position corresponding to a hole area of a display area of the display panel; the shading glue structure is provided with an initial opening;
curing the shading glue structure to obtain a shading structure; the light shielding structure has an opening, and the light shielding structure corresponds to a peripheral area in the hole area, and a first dimension of the light shielding structure from the inner periphery toward the outer periphery in a radial direction of the hole area is smaller than a design frame value of the hole area.
In one possible implementation, printing a light blocking paste structure on one side of the substrate layer and corresponding to a hole area of a display 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 glue layer or a light absorption glue layer on one side of the transparent glue layer, which is 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 brought by the technical scheme provided by the embodiment of the application comprise:
in the embodiment of the application, the shading glue structure is printed on one side of the substrate layer and at the position corresponding to the hole area of the display panel, and then curing treatment is carried out to obtain the shading structure for shading light rays emitted by the pixel structure of the display area. The preparation method of the embodiment of the application can reduce the requirement of the attaching precision of the shading structure, so that the first size of the shading structure from the inner periphery to the outer periphery is smaller than the designed frame value of the Hole region along the radial direction of the Hole region, thereby meeting the attaching requirement of the frame with smaller designed frame value, realizing the design of the AA Hole narrow frame and reducing the Panle cost of the display panel.
Additional aspects and advantages of the present 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 present 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 of which:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
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 disclosure;
fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 5 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present disclosure.
Reference numerals:
100-a display area;
110-a base layer;
120-shading structure, 121-opening, 122-black glue layer and 123-transparent glue layer;
130-pixel structure;
140-an encapsulation layer;
150-a planarization layer;
160-touch layer.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, 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. 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 the context clearly indicates otherwise. 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. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
The embodiment of the present 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 blocking structure 120.
The light shielding structure 120 is disposed on one side of the substrate layer 110, the light shielding structure 120 has an opening 121, and the light shielding structure 120 corresponds to a peripheral region in the hole region; in a radial direction of the aperture region, a first dimension of the light shielding structure 120 from the inner periphery to the outer periphery is smaller than a design frame value of the aperture region. Optionally, the design bezel value is no greater than 0.5mm (millimeters).
The display panel of the embodiment of the application is along the radial direction of the Hole area, and 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, so that the fitting requirement that the design frame value of the frame is smaller 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 glue layer 122, and an inner periphery of the black glue layer 122 forms a boundary of the opening 121. It is conceivable that the light absorption glue layer is consistent with the black glue layer 122 in arrangement, the light absorption glue layer blocks light by absorbing light, and the black glue layer 122 blocks light by blocking light with black.
As an example, the black glue layer 122 is in the shape of a ring, and the opening 121 is used for placing a camera. Optionally, the distance between the inner periphery and the outer periphery of the black glue layer 122 is within 0.1 mm.
Optionally, the shape of the black glue layer 122 may also be a rectangle, 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 absorption glue layer can be designed according to the design of the product.
In some embodiments, the light shielding structure 120 further comprises: and the transparent adhesive layer 123 is arranged on one side of the substrate layer 110, and the transparent adhesive layer 123 corresponds to the peripheral area in the hole area. The black glue layer 122 or the light absorption glue layer is correspondingly disposed on a side of the transparent glue 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 an aperture region of a display panel. The transparent adhesive layer 123 is transparent, and in the preparation process of the display panel, after one layer of the transparent adhesive layer 123 is printed, the black adhesive layer 122 or the light absorption adhesive layer is prepared on one side, away from the substrate layer 110, of the transparent adhesive layer 123, and when the camera is arranged, the opening 121 is drilled, so that the shape of the transparent adhesive layer 123 is matched with the shape of the black adhesive layer 122 or the light absorption adhesive layer. That is, the transparent adhesive layer 123 corresponds to the peripheral area in the hole area.
In some embodiments, referring to fig. 3, in a direction perpendicular to the substrate layer 110, a height of a side of the light shielding structure 120 away from the substrate layer 110 is greater than a height of a side of the pixel structure 130 away from the substrate layer 110 in the display area 100 around the aperture area.
Alternatively, referring to fig. 3, an arrow indicates a light ray, and after the light ray of the pixel structure 130 is shielded 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, an orthographic projection of a 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 an orthographic projection of a side of the light shielding structure 120 close to the substrate layer 110.
In some embodiments, referring to fig. 3, a side of the pixel structure 130 away from the substrate layer 110 is provided with an encapsulation layer 140. The encapsulation layer 140 surrounds the light shielding structure 120.
Optionally, referring to fig. 3, the shape of the contact surface of the encapsulation layer 140 and the light shielding structure 120 is matched, and the contact surfaces of the encapsulation layer 140 and the light shielding structure 120 are both inclined surfaces with a predetermined inclination angle. In practical applications, since the encapsulation layer 140 includes an organic layer, when the light shielding structure 120 is encapsulated, a slope is correspondingly formed.
Alternatively, referring to fig. 3, the height of the encapsulation layer 140 in the direction perpendicular to the base layer 110 is consistent with the height of the light shielding structure 120 in 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 the sides of the encapsulation layer 140 and the light shielding structure 120 away from the substrate layer 110.
Further, the inventor of the present application has found that, in an FMLOC (Flexible Multi-Layer On Cell, Flexible Multi-Layer touch technology) process, an IJP (Ink Jet Printing) process may be performed, the black glue Layer 122, the transparent glue Layer 123 and the light absorption glue Layer of the light shielding structure 120 may be printed in an 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 blocking structure 120 in a direction perpendicular to the base layer 110 is between 8 μm (micrometers) and 20 μm. Optionally, the numerical range in the embodiment of the present application includes upper and lower limits, 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 details of the whole process are omitted.
Alternatively, the black glue layer 122, the transparent glue layer 123 and the light absorption glue layer all have a height in a direction perpendicular to the base layer 110 in a range of 8 μm to 10 μm.
Based on the same inventive concept, an embodiment of the present application further provides a display device, including: the display panel of any embodiment of the present application.
Based on the same inventive concept, an 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 the display panel includes the following steps:
s501, printing a shading glue structure on one side of the substrate layer 110 and at a position corresponding to a hole area of the display area 100 of the display panel; the opaque gel structure has an initial opening.
S502, curing the shading glue 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 area in the hole area, and a first dimension of the light shielding structure 120 from an inner periphery toward an outer periphery in a radial direction of the hole area is smaller than a design frame value of the hole area.
Alternatively, the shape of the opening 121 is formed by curing the initial opening.
In some embodiments, curing the light blocking gel structure to obtain the light blocking structure 120 includes:
referring to fig. 2, a transparent adhesive layer 123 is printed on one side of the substrate 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 on a side of the transparent adhesive layer 123 away from the substrate 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.
Alternatively, the printing of the light blocking paste structure on one side of the substrate layer 110 and corresponding to the hole area of the display area 100 of the display panel includes: on one side of the substrate layer 110, and corresponding to the hole region of the display region 100 of the display panel, a black glue layer 122 or a light absorbing glue layer is printed.
According to the preparation method, the mode of printing the shading glue structure is adopted, the requirement on the attaching precision of the shading structure can be lowered, 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 design frame value of the frame is further met, the design of the AA Hole narrow frame is achieved, and the Panle cost of the display panel is reduced.
In the process of process preparation, the inventor of the present application considers that the width of the frame of the AA Hole is wide, 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 to 1.0mm, which cannot meet the requirement that the frame of the AA Hole is equal to or less than 0.5 mm.
Optionally, in the embodiment of the present application, by using an IJP process of FMLOC, the black glue layer 122, the transparent glue layer 123, and the light absorption glue layer of the light shielding structure 120 may be printed in the AA Hole area by using IJP, and the formed light shielding structure 120 may have a flat and light shielding effect.
According to the embodiment of the application, the light shielding structure 120 for shielding light is printed in the AA Hole area by utilizing the FMLOC IJP process, so that the light shielding structure 120 does not need to be attached in the subsequent process, and the attachment requirement of the frame with a smaller design frame value is further met.
By applying the preparation method of the embodiment of the application, adjustment is performed under the existing process, cost increase is not needed, and the cost of subsequent materials is reduced. In addition, the laminating precision of the technology is improved by adopting the IJP technology, and the laminating requirement that the designed frame value of the frame is smaller can be met.
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 dropping IJP on the peripheral area of the AA Hole where light is required to be shielded, 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) the display panel of the embodiment of the application is along the radial direction of the Hole area, and 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, so that the fitting requirement that the design frame value of the frame is smaller 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 glue structure is adopted, the requirement on the attaching precision of the shading structure can be lowered, 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 design frame value of the frame is further met, the design of the AA Hole narrow frame is achieved, and the Panle cost of the display panel is reduced.
(3) In the embodiment of the application, by using the IJP process of FMLOC, the black adhesive layer 122, the transparent adhesive layer 123 and the light absorption adhesive layer of the light shielding structure 120 can be printed in the AA Hole area by using IJP, and the formed light shielding structure 120 can have flat and light shielding effects.
(4) According to the embodiment of the application, the light shielding structure 120 for shielding light is printed in the AA Hole area by utilizing the FMLOC IJP process, so that the light shielding structure 120 does not need to be attached in the subsequent process, and the attachment requirement of the frame with a smaller design frame value is further met.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to 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 those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any 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, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (11)
1. A display panel comprising a display area including an aperture area, the display panel comprising:
a base layer;
the shading structure is arranged on one side of the basal layer, is provided with an opening and corresponds to the peripheral area in the hole area; in a radial direction of the aperture region, a first dimension of the light shielding structure from the inner periphery to the outer periphery is smaller than a design frame value of the aperture region.
2. The display panel according to claim 1, wherein 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 absorption glue layer forms the boundary of the opening.
3. The display panel according to claim 2, wherein the light shielding structure further comprises: the transparent adhesive layer is arranged on one side of the substrate layer and corresponds to the peripheral area in the hole area;
the black glue layer or the light absorption glue layer is arranged on one side, far away from the basal layer, of the transparent glue layer.
4. The display panel according to claim 1, wherein a height of a side of the light shielding structure away from the base layer in a direction perpendicular to the base layer is greater than a height of a side of the pixel structure away from the base layer in a display region around the aperture region.
5. The display panel according to claim 4, wherein an orthographic projection of a side of the light shielding structure far from the substrate layer is closer to the pixel structure than an orthographic projection of a side of the light shielding structure close to the substrate layer.
6. The display panel according to claim 4, wherein a side of the pixel structure away from the substrate layer is provided with an encapsulation layer;
the packaging layer surrounds the periphery of the light shielding structure.
7. The display panel according to claim 6, wherein a flat layer and a touch layer are sequentially disposed on the sides of the encapsulation layer and the light shielding structure away from the substrate layer.
8. The display panel according to claim 1, wherein the light shielding structure has a height of 8 to 20 μm in a direction perpendicular to the base layer.
9. A display device, comprising: the display panel of any one of claims 1-8.
10. A method for manufacturing a display panel, applied to the display panel according to any one of claims 1 to 8, comprising:
printing a shading glue structure on one side of the substrate layer and at a position corresponding to a hole area of a display area of the display panel; the shading glue structure is provided with an initial opening;
curing the shading glue 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 has a first size from an inner periphery to an outer periphery smaller than a design frame value of the hole area along a radial direction of the hole area.
11. The method for manufacturing a display panel according to claim 10, wherein the printing of the light blocking paste structure on the side of the base layer corresponding to the hole region 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 glue layer or a light absorption glue layer on one side of the transparent glue layer, which is 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 absorption glue layer is provided with the initial opening.
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