CN113745430B - Display module and preparation method thereof - Google Patents
Display module and preparation method thereof Download PDFInfo
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- CN113745430B CN113745430B CN202110996282.5A CN202110996282A CN113745430B CN 113745430 B CN113745430 B CN 113745430B CN 202110996282 A CN202110996282 A CN 202110996282A CN 113745430 B CN113745430 B CN 113745430B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/868—Arrangements for polarized light emission
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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Abstract
The invention discloses a display module and a preparation method thereof. The display module comprises a display area and a non-display area adjacent to the display area; the display module further comprises a display panel, a functional layer and a cover plate; the functional layer is arranged on one side of the display panel and comprises a polarizing part at least positioned in the display area and a sealing part positioned in the non-display area, and the thickness of the sealing part is greater than that of the polarizing part; the cover plate is arranged on one side, far away from the display panel, of the functional layer and comprises a first sub-portion and a second sub-portion, wherein the first sub-portion is arranged opposite to the light polarizing portion, the second sub-portion is arranged opposite to the sealing portion, the thickness of the first sub-portion is larger than that of the second sub-portion, and the first sub-portion is in contact connection with the light polarizing portion. The invention effectively prevents bubbles from being generated between the first sub-part and the polarizing part in the process of attaching the cover plate and the functional layer, effectively improves the interference phenomenon of the display module and improves the display effect of the display module.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module and a preparation method thereof.
Background
In recent years, organic Light-Emitting Diode (OLED) displays have become very popular flat panel display products at home and abroad because OLED displays have the characteristics of self-luminescence, wide viewing angle, short response time, high luminous efficiency, wide color gamut, low operating voltage, thin thickness, capability of manufacturing large-size and flexible displays, simple manufacturing process and the like.
At present, in the flexible OLED display of types such as bending, curling, often make OLED display more frivolous to improve OLED display's bending performance, for example attenuate polaroid and OCA optics glue film etc. but carry out the in-process of attenuate to polaroid and OCA optics glue film etc. and form the segment difference easily, and then when laminating the apron, produce the bubble easily, thereby take place the interference phenomenon, seriously influence OLED display's display effect.
Disclosure of Invention
The embodiment of the invention provides a display module and a preparation method thereof, which can reduce the probability of generating bubbles in the process of attaching a cover plate and a polarizing layer so as to improve the interference phenomenon of the display module.
The embodiment of the invention provides a display module, which comprises a display area and a non-display area adjacent to the display area;
the display module assembly still includes:
a display panel;
the functional layer is arranged on one side of the display panel and comprises a polarizing part at least positioned in the display area and a sealing glue part positioned in the non-display area, and the thickness of the sealing glue part is greater than that of the polarizing part; and
the cover plate is arranged on one side, far away from the display panel, of the functional layer and comprises a first sub-portion and a second sub-portion, wherein the first sub-portion is opposite to the light polarizing portion, the second sub-portion is opposite to the glue sealing portion, the thickness of the first sub-portion is larger than that of the second sub-portion, and the first sub-portion is in contact connection with the light polarizing portion.
In an embodiment of the invention, the second sub-portion and the glue sealing portion are disposed at intervals along a first direction, and the first direction is along a thickness direction of the display module.
In an embodiment of the invention, a distance between the second sub-portion and the glue sealing portion along the first direction is greater than 30 micrometers.
In an embodiment of the invention, the first sub-portion and the glue sealing portion are disposed at an interval along a second direction, and the second direction is a direction in which the glue sealing portion points to the light deflecting portion.
In an embodiment of the invention, a distance between the first sub-portion and the glue sealing portion along the second direction is greater than or equal to 100 micrometers and less than or equal to 200 micrometers.
In an embodiment of the invention, a side of the polarization part close to the sealant part has a convex part, a side of the sealant part close to the polarization part has a concave part corresponding to the convex part, and the convex part is embedded with the concave part.
In an embodiment of the invention, an orthographic projection of one side of the convex part close to the glue sealing part on the display panel is concave-convex.
In one embodiment of the present invention, a side of the first sub-portion away from the functional layer is coplanar with a side of the second sub-portion away from the functional layer.
In an embodiment of the invention, the polarization portion includes a polarizer disposed on one side of the display panel and an optical adhesive disposed on a side of the polarizer away from the display panel, and the optical adhesive is attached to the first sub-portion.
According to the above object of the present invention, a method for manufacturing a display module is provided, where the display module includes a display area and a non-display area adjacent to the display area, and the method includes the following steps:
providing a display panel;
forming a functional layer on one side of the display panel, wherein the functional layer comprises a polarizing part at least formed in the display area and a sealing glue part formed in the non-display area, and the thickness of the sealing glue part is greater than that of the polarizing part; and
and forming a cover plate on one side of the functional layer far away from the display panel, wherein the cover plate comprises a first sub-part and a second sub-part, the first sub-part is opposite to the light polarizing part, the second sub-part is opposite to the glue sealing part, the thickness of the first sub-part is larger than that of the second sub-part, and the first sub-part is in contact connection with the light polarizing part.
The invention has the beneficial effects that: according to the invention, the first sub-part corresponding to the light polarizing part and the second sub-part corresponding to the glue sealing part are formed on one side of the cover plate facing the functional layer, and the thickness of the glue sealing part is larger than that of the light polarizing part, so that the first sub-part with larger thickness is arranged in the cover plate aiming at the light polarizing part, and the second sub-part with smaller thickness is arranged aiming at the glue sealing part, so that the first sub-part is in contact connection with the light polarizing part, bubbles are effectively prevented from being generated between the first sub-part and the light polarizing part in the process of adhering the cover plate and the functional layer, the interference phenomenon of the display module is effectively improved, and the display effect of the display module is improved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic structural diagram of a conventional display module;
fig. 2 is a schematic structural diagram of a display module according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a display module according to an embodiment of the invention;
fig. 4 is a schematic top view illustrating a functional layer of a display module according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for manufacturing a display module according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Please refer to fig. 1, which is a schematic structural diagram of a conventional display module, wherein the display module includes a backplane supporting layer 1, a display panel 2 disposed on one side of the backplane supporting layer 1, a sealant layer 3, a polarizer 4, an optical adhesive layer 5 disposed on one side of the display panel 2 away from the backplane supporting layer 1, and a cover plate 6 disposed on one side of the sealant layer 3 and the optical adhesive layer 5 away from the backplane supporting layer 1, wherein the polarizer 4 and the optical adhesive layer 5 are at least located in a display area AA, and the sealant layer 3 is located in a non-display area NA. In order to make the display module assembly more frivolous, polaroid 4 and optical cement layer 5 in the display module assembly often carry out the attenuate, with the thickness that reduces display module assembly, but, because the display module assembly that is located in non-display area NA need buckle, and then sealing layer 3 need set up certain thickness, with protect the display module assembly in the non-display area NA, thereby will produce the segment difference between sealing layer 3 and the optical cement layer 5, after laminating apron 6, because sealing layer 3 thickness is great, and then apron 6 and sealing layer 3 contact, and with have gap 7 between the optical cement layer 5, the easy bubble that produces, and then take place interference phenomenon, influence display module assembly's display effect.
In order to solve the above technical problem, an embodiment of the present invention provides a display module, referring to fig. 2, the display module includes a display area a and a non-display area B adjacent to the display area a; the display module further includes a display panel 10, a functional layer 20, and a cover plate 30.
The functional layer 20 is disposed on one side of the display panel 10, and the functional layer 20 includes a polarizer 21 at least located in the display area a and an encapsulant 22 located in the non-display area B, where a thickness of the encapsulant 22 is greater than a thickness of the polarizer 21.
The cover plate 30 is disposed on a side of the functional layer 20 away from the display panel 10, and the cover plate 30 includes a first sub-portion 31 disposed opposite to the light deflecting portion 21 and a second sub-portion 32 disposed opposite to the sealing portion 22, wherein a thickness of the first sub-portion 31 is greater than a thickness of the second sub-portion 32, and the first sub-portion 31 is in contact connection with the light deflecting portion 21.
In the implementation and application process, because the thickness of the glue sealing portion 22 is greater than the thickness of the polarized light portion 21, in the embodiment of the present invention, the thickness of the first sub-portion 31 of the cover plate 30 corresponding to the polarized light portion 21 is set to be greater than the thickness of the second sub-portion 32 of the cover plate 30 corresponding to the glue sealing portion 22, so that the first sub-portion 31 and the polarized light portion 21 are in contact connection, which can prevent the cover plate 30 from generating bubbles in the attaching process, reduce the probability of interference between the cover plate 30 and the functional layer 20, and improve the display effect of the display module.
Specifically, referring to fig. 2, the display module includes a display panel 10, a functional layer 20 disposed on one side of the display panel 10, a cover plate 30 disposed on one side of the functional layer 20 away from the display panel 10, a back plate 51 disposed on one side of the display panel 10 away from the functional layer 20, and a protective layer 52 disposed on one side of the back plate 51 away from the display panel 10.
Alternatively, the protection layer 52 may be a release film or a protection film, and is not limited herein.
The display module comprises a display area A and a non-display area B adjacent to one side of the display area A, the functional layer 20 comprises a light deflection part 21 at least located in the display area A and a glue sealing part 22 located in the non-display area B, and the display module needs to be bent corresponding to the non-display area B to be bound in a bending manner, so that the screen occupation ratio of the display module is improved, and therefore, the bending performance of part of the display module corresponding to the non-display area B is improved by arranging the patterning structures 60 in the display panel 10 and the back plate 51. And a sealant part 22 is disposed at a position corresponding to the display panel 10 to protect the bent portion of the display panel 10. Since the sealant 22 needs to have a certain buffering function, the sealant 22 needs to have a certain thickness, and in the embodiment of the invention, in order to improve the lightness and thinness of the display module, the polarizer 21 is thinned, and the thickness of the polarizer 21 is smaller than that of the sealant 22, that is, the side of the sealant 22 away from the display panel 10 protrudes outward relative to the side of the polarizer 21 away from the display panel 10.
Optionally, the material of the sealing portion 22 includes UV glue, and the polarization portion 21 is in contact connection with the sealing portion 22.
It should be noted that the polarizer 21 may be only disposed in the display area a, and since the display module has tolerance in the manufacturing process and offset in the bending process, the coverage area of the polarizer 21 may also be larger than the area of the display area a, so that the polarizer 21 completely covers the display area a of the display module.
In the embodiment of the invention, the polarization portion 21 includes a polarizer 211 disposed on one side of the display panel 10 and an optical adhesive 212 disposed on one side of the polarizer 211 away from the display panel 10.
The cover plate 30 is disposed on a side of the functional layer 20 away from the display panel 10, and the cover plate 30 includes a first sub-portion 31 and a second sub-portion 32, wherein the first sub-portion 31 is disposed opposite to the light deflecting portion 21, the second sub-portion 32 is disposed opposite to the sealing portion 22, and a thickness of the first sub-portion 31 is greater than a thickness of the second sub-portion 32, that is, a side of the first sub-portion 31 close to the functional layer 20 is protruded relative to a side of the second sub-portion 32 close to the functional layer 20, so that the first sub-portion 31 is in contact with and connected to the light deflecting portion 21, i.e., the first sub-portion 31 is attached to the optical glue 212.
Alternatively, the side of the first subsection 31 remote from the functional layer 20 is disposed coplanar with the side of the second subsection 32 remote from the functional layer 20.
That is, in the embodiment of the invention, the thickness of the first sub-portion 31 is increased, and/or the thickness of the second sub-portion 32 is decreased, so that the thickness of the first sub-portion 31 is greater than the thickness of the second sub-portion 32, so as to compensate the step difference between the polarized light portion 21 and the sealing portion 22, and thus the first sub-portion 31 is in contact connection with the polarized light portion 21, and the probability of the display module generating interference is reduced.
Further, the sealant portion 22 is disposed at an interval from the cover plate 30, specifically, the thickness direction of the display module is set as a first direction X, the direction of the sealant portion 22 pointing to the light deflecting portion 21 is set as a second direction Y, the sealant portion 22 and the second sub-portion 32 are disposed at an interval along the first direction X and have a first gap 41, and the sealant portion 22 and the first sub-portion 31 are disposed at an interval along the second direction Y and have a second gap 42. In the embodiment of the present invention, the glue sealing portion 22 is disposed at an interval with the first sub-portion 31 and the second sub-portion 32, so as to prevent the glue sealing portion 22 from contacting or pressing the second sub-portion 32 and/or the first sub-portion 31 due to process fluctuation and tolerance, and further prevent the contact connection between the light deflecting portion 21 and the first sub-portion 31 from being affected, i.e., prevent the adhesion between the optical glue 212 and the first sub-portion 31 from being affected.
Optionally, the distance of the first slit 41 in the first direction X is greater than 30 micrometers, and the distance of the second slit 42 in the second direction Y is greater than or equal to 100 micrometers and less than or equal to 200 micrometers.
In an embodiment of the invention, referring to fig. 2, in the embodiment, a side of the polarizing portion 21 close to the sealant 22 is in contact connection with a side of the sealant 22 close to the polarizing portion 21, and both the side of the polarizing portion 21 close to the sealant 22 and the side of the sealant 22 close to the polarizing portion 21 are flush surfaces.
In the present embodiment, the polarizer 21 is in contact connection with the sealant 22, so that the functional layer 20 completely covers one side of the display panel 10 close to the cover plate 30, so as to protect signal lines, electrode elements, and the like on the display panel 10.
In another embodiment of the present invention, referring to fig. 3, in the present embodiment, a convex portion 213 is disposed on a side of the polarized light portion 21 close to the sealant portion 22, and a concave portion 221 corresponding to the convex portion 213 is disposed on a side of the sealant portion 22 close to the polarized light portion 21 for accommodating the convex portion 213.
In the present embodiment, the convex portion 213 is engaged with the concave portion 221 to improve the connection strength between the polarization portion 21 and the sealing portion 22.
Alternatively, the shape of the convex portion 213 may be an arc shape, a polygon shape, or a combination of an arc shape and a polygon shape, and the shape of the concave portion 221 matches the shape of the convex portion 213.
It should be noted that the convex portion 213 is disposed on one side of the polarizer 211 close to the sealant portion 22, and may be located at an upper portion, a middle portion, or a lower portion of a side surface of the polarizer 211, which is not limited herein, and the concave portion 221 is located at a side surface of the sealant portion 22, and a position of the concave portion corresponds to the convex portion 213.
In the embodiment of the present invention, the convex portion 213 is disposed on the side of the polarization portion 21 close to the sealant portion 22, and the concave portion 221 engaged with the convex portion 213 is disposed on the side of the sealant portion 22 close to the polarization portion 21, so as to improve the bonding strength between the polarization portion 21 and the sealant portion 22, and improve the protection effect of the functional layer 20 on the signal lines and the electrode elements on the display panel 10.
Further, referring to fig. 3 and fig. 4, in which the structure shown in fig. 4 is a top view of the connection structure between the polarization portion 21 and the sealing portion 22, in the present embodiment, an orthogonal projection of one side of the convex portion 213 close to the sealing portion 22 on the display panel 10 is in a concave-convex shape. Specifically, the protruding portion 213 includes a plurality of sub-protruding portions 2131, the recessed portion 221 includes a plurality of sub-recessed portions 2211, and the plurality of sub-protruding portions 2131 and the plurality of sub-recessed portions 2211 are arranged in an interlaced manner, so that the plurality of sub-protruding portions 2131 and the plurality of sub-recessed portions 2211 are engaged with each other, so that the connection between the polarization portion 21 and the sealant portion 22 is tighter, the bonding strength between the polarization portion 21 and the sealant portion 22 is further improved, and the protection effect on the display panel 10 is improved.
Alternatively, the shape of the orthographic projection of the sub-protrusion 2131 on the display panel 10 includes an arc shape, a polygon shape, or a combination of an arc shape and a polygon shape.
In view of the above, since the thickness of the glue sealing portion 22 is greater than the thickness of the polarized portion 21, in the embodiment of the present invention, the thickness of the first sub-portion 31 of the cover plate 30 corresponding to the polarized portion 21 is set to be greater than the thickness of the second sub-portion 32 of the cover plate 30 corresponding to the glue sealing portion 22, so that the first sub-portion 31 is in contact connection with the polarized portion 21, which can prevent the cover plate 30 from generating bubbles during the process of being attached to the polarized portion 21, reduce the probability of interference between the cover plate 30 and the functional layer 20, and improve the display effect of the display module. In the embodiment of the present invention, the convex portion 213 is further disposed on one side of the polarization portion 21 close to the sealant portion 22, and the concave portion 221 is disposed on one side of the sealant portion 22 close to the polarization portion 21, so as to improve the bonding strength between the polarization portion 21 and the sealant portion 22, prevent the sealant portion 22 from exposing the signal lines, the electrode elements, and the like of the display panel 10 in the non-display area B, further improve the protection effect of the functional layer 20 on the signal lines and the electrode sources on the display panel 10, and improve the yield of the display module.
In addition, an embodiment of the present invention further provides a method for manufacturing a display module, please refer to fig. 2 and fig. 5, and the display module is the display module described in the above embodiments, wherein the display module includes a display area a and a non-display area B adjacent to the display area a.
Specifically, the preparation method of the display module comprises the following steps:
and S10, providing the display panel 10.
The display panel 10 provided by the embodiment of the invention can be an OLED display panel.
And S20, forming a functional layer 20 on one side of the display panel 10, wherein the functional layer 20 comprises a light deflection part 21 at least formed in the display area A and a sealant part 22 formed in the non-display area B, and the thickness of the sealant part 22 is greater than that of the light deflection part 21.
The functional layer 20 is formed on one side of the display panel 10, and specifically, the polarizer 211 may be attached to the display panel 10 corresponding to the display area a, and the optical glue 212 is formed on one side of the polarizer 211 away from the display panel 10 to form the polarizer 21.
Alternatively, the optical cement 212 may be an OCA optical cement.
Then, an adhesive sealing portion 22 is formed on the display panel 10 corresponding to the non-display area B, and the adhesive sealing portion 22 is in contact connection with the polarizer 21, the thickness of the adhesive sealing portion 22 is greater than that of the polarizer 21, that is, one side of the adhesive sealing portion 22 away from the display panel 10 protrudes outward relative to one side of the polarizer 21 away from the display panel.
Optionally, the material of the sealing portion 22 includes UV glue.
It should be noted that, in the embodiment of the present invention, the preparation sequence of the polarizer 21 and the sealant 22 is not limited, and can be selected according to actual requirements.
S30, forming a cover plate 30 on a side of the functional layer 20 away from the display panel 10, where the cover plate 30 includes a first sub-portion 31 opposite to the polarized light portion 21 and a second sub-portion 32 opposite to the sealing compound portion 22, where a thickness of the first sub-portion 31 is greater than a thickness of the second sub-portion 32, and the first sub-portion 31 is in contact with the polarized light portion 21.
A cover plate 30 is provided, and optionally, the material of the cover plate 30 includes a poly-terephthalic plastic or a transparent polyimide material, or the cover plate 30 is ultra-thin glass.
Further, the cover plate 30 is divided into the first sub-portion 31 and the second sub-portion 32, the second sub-portion 32 may be thinned and/or the first sub-portion 31 may be thickened to obtain the cover plate 30 with different thickness distributions, specifically, when the cover plate 30 is made of a parylene plastic or a transparent polyimide material, laser cutting may be used for preparation, and when the cover plate 30 is made of ultra-thin glass, a mold design may be used for obtaining the cover plate 30.
Specifically, in the present embodiment, the second sub-portion 32 may be thinned, so that the thinned side surface of the second sub-portion 32 is retracted relative to the same side surface of the first sub-portion 31, and the side surface is set as the attaching surface.
The attaching surface of the cover plate 30 is attached to the functional layer 20, the first sub-portion 31 is attached to the polarizing portion 21, and the optical adhesive 212 is attached to the first sub-portion 31, so that the cover plate 30 is in contact connection with the polarizing portion 21, the probability of interference generated by the display module is reduced, and the display effect of the display module is improved.
The second sub-portion 32 is disposed corresponding to the sealant portion 22, and the sealant portion 22 and the cover plate 30 are disposed at an interval, specifically, the thickness direction along the display module is set as a first direction X, the direction along the sealant portion 22 pointing to the deflection portion 21 is set as a second direction Y, the sealant portion 22 and the second sub-portion 32 are disposed at an interval along the first direction X, and have a first gap 41, and the sealant portion 22 and the first sub-portion 31 are disposed at an interval along the second direction Y, and have a second gap 42. In the embodiment of the present invention, the glue sealing portion 22 is disposed at an interval with the first sub-portion 31 and the second sub-portion 32, so as to prevent the glue sealing portion 22 from contacting or pressing the second sub-portion 32 and/or the first sub-portion 31 due to process fluctuation and tolerance, and further prevent the contact connection between the light deflecting portion 21 and the first sub-portion 31 from being affected, i.e., prevent the adhesion between the optical glue 212 and the first sub-portion 31 from being affected.
Optionally, the distance of the first slit 41 in the first direction X is greater than 30 micrometers, and the distance of the second slit 42 in the second direction Y is greater than or equal to 100 micrometers and less than or equal to 200 micrometers.
It should be noted that the method for manufacturing the display module further includes forming a back plate 51 and a protective layer 52 on a side of the display panel 10 away from the functional layer 20, where the back plate 51 and the protective layer 52 may be manufactured before the functional layer 20 or after the functional layer 20, and the method is not limited herein.
In addition, the embodiment of the invention also provides a mobile terminal, which comprises the display module and the terminal main body, wherein the display module and the terminal main body are combined into a whole.
The mobile terminal comprises wearable equipment such as an intelligent bracelet, an intelligent watch, VR (Virtual Reality) and the like; and flexible OLED display and lighting devices such as mobile phones, electronic books and newspapers, televisions, personal portable computers, foldable and rollable OLEDs.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display module and the manufacturing method thereof provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A display module is characterized by comprising a display area and a non-display area adjacent to the display area;
the display module assembly still includes:
a display panel;
the functional layer is arranged on one side of the display panel and comprises a polarizing part at least positioned in the display area and a sealing glue part positioned in the non-display area, and the thickness of the sealing glue part is greater than that of the polarizing part; and
the cover plate is arranged on one side, far away from the display panel, of the functional layer and comprises a first sub-portion and a second sub-portion, wherein the first sub-portion is opposite to the light polarizing portion, the second sub-portion is opposite to the glue sealing portion, the thickness of the first sub-portion is larger than that of the second sub-portion, and the first sub-portion is in contact connection with the light polarizing portion;
the second sub-portion and the glue sealing portion are arranged at intervals along a first direction, the first direction is the thickness direction of the display module, the first sub-portion and the glue sealing portion are arranged at intervals along a second direction, and the second direction is the direction of the glue sealing portion pointing to the light deflection portion.
2. The display module according to claim 1, wherein a distance between the second sub-portion and the sealant portion along the first direction is greater than 30 μm.
3. The display module according to claim 1, wherein a distance between the first sub-portion and the sealant portion along the second direction is greater than or equal to 100 micrometers and less than or equal to 200 micrometers.
4. The display module according to claim 1, wherein a convex portion is disposed on a side of the polarizer adjacent to the sealant, a concave portion corresponding to the convex portion is disposed on a side of the sealant adjacent to the polarizer, and the convex portion is engaged with the concave portion.
5. The display module according to claim 4, wherein an orthographic projection of one side of the convex portion close to the sealant portion on the display panel is concave-convex.
6. The display module of claim 1, wherein a side of the first sub-portion remote from the functional layer is coplanar with a side of the second sub-portion remote from the functional layer.
7. The display module according to claim 1, wherein the polarizer comprises a polarizer disposed on a side of the display panel and an optical adhesive disposed on a side of the polarizer away from the display panel, and the optical adhesive is attached to the first sub-portion.
8. A preparation method of a display module is characterized in that the display module comprises a display area and a non-display area adjacent to the display area, and comprises the following steps:
providing a display panel;
forming a functional layer on one side of the display panel, wherein the functional layer comprises a polarizing part at least formed in the display area and a glue sealing part formed in the non-display area, and the thickness of the glue sealing part is larger than that of the polarizing part; and
the cover plate comprises a first sub-portion and a second sub-portion, wherein the first sub-portion is opposite to the light deflection portion, the second sub-portion is opposite to the glue sealing portion, the thickness of the first sub-portion is larger than that of the second sub-portion, the first sub-portion is in contact connection with the light deflection portion, the second sub-portion and the glue sealing portion are arranged at intervals along a first direction, the first direction is along the thickness direction of the display module, the first sub-portion and the glue sealing portion are arranged at intervals along a second direction, and the second direction is the direction of the glue sealing portion pointing to the light deflection portion.
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| CN202110996282.5A CN113745430B (en) | 2021-08-27 | 2021-08-27 | Display module and preparation method thereof |
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| KR102049909B1 (en) * | 2013-02-12 | 2019-11-29 | 삼성디스플레이 주식회사 | Image display apparatus |
| KR102695129B1 (en) * | 2016-12-22 | 2024-08-13 | 엘지디스플레이 주식회사 | Organic light emitting display device |
| CN111061078A (en) * | 2019-12-16 | 2020-04-24 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel, preparation method thereof and display device |
| CN111221172A (en) * | 2020-03-09 | 2020-06-02 | 深圳市华星光电半导体显示技术有限公司 | Display device and method for manufacturing the same |
| CN111769146B (en) * | 2020-06-28 | 2022-07-29 | 武汉华星光电半导体显示技术有限公司 | Display device and display panel |
| CN112835141A (en) * | 2021-02-08 | 2021-05-25 | 武汉华星光电半导体显示技术有限公司 | Polaroid and flexible foldable display panel device |
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2021
- 2021-08-27 CN CN202110996282.5A patent/CN113745430B/en active Active
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| CN113745430A (en) | 2021-12-03 |
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