CN213042095U

CN213042095U - Display panel and display device having the same

Info

Publication number: CN213042095U
Application number: CN202021787947.9U
Authority: CN
Inventors: 李天龙; 程前庚; 邹传波; 石刚贵; 吴俊�; 史良慧
Original assignee: BOE Technology Group Co Ltd; Chongqing BOE Smart Electronics System Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chongqing BOE Smart Electronics System Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-23
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a display panel and display device who has it, display panel includes: the electronic ink film comprises a substrate, an electronic ink film, an IC chip and a protective cover plate; the protection apron is located one side of keeping away from the base plate of electron ink film and IC chip, and the protection apron is transparent material spare of moulding plastics, and is formed with on the protection apron towards the open recess of dodging of base plate direction, dodges the recess and is used for dodging the IC chip, and it has first sealed glue to fill between the border of protection apron and the base plate. According to the utility model discloses a display panel through setting up the protection apron, can utilize to dodge the recess and solve because the great structural problem that arouses of thickness of IC chip to avoid IC chip pressurized damage, play both effectual guard action to electronic ink film and IC chip. Moreover, the structure complexity and the processing procedure of the display panel can be simplified, and when the display panel falls or vibrates, the protective cover plate is not easy to crack, so that the structural strength and the anti-falling capacity of the display panel are enhanced.

Description

Display panel and display device having the same

Technical Field

The utility model belongs to the technical field of the display technology and specifically relates to a display panel and display device who has it are related to.

Background

The electronic paper display panel in the related technology generally comprises a substrate, an IC chip, an electronic ink film, a water blocking film, a shielding gasket, a glass cover plate and the like, wherein the IC chip and the electronic ink film are arranged on the front surface of the substrate, the water blocking film is arranged on the front surface of the electronic ink film and bypasses the IC chip to prevent water vapor and the like from contacting with the electronic ink film, white glue is arranged around the surface and the periphery of the IC chip for protection, and the shielding gasket and the glass cover plate are covered on the surfaces of the IC chip and the electronic ink film to form surface protection. However, the structure of the electronic paper display panel is complex, the processing procedure is complicated, and the anti-falling performance needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a display panel, display panel is through setting up the protection apron of transparent material spare of moulding plastics to can utilize to dodge the recess and solve the structural problem because the thickness of IC chip is great arouses, thereby simplify display panel's structure and manufacturing procedure, promote display panel's anti performance of falling.

The utility model discloses still provide a display device who has above-mentioned display panel.

According to the utility model discloses display panel of first aspect embodiment includes: a substrate; the electronic ink film is arranged on the display side of the substrate and is electrically connected with the substrate; the IC chip is also arranged on the display side of the substrate and is electrically connected with the substrate; the protective cover plate is arranged on one side, far away from the substrate, of the electronic ink film and the IC chip, and is a transparent injection molding material, an avoiding groove which is open towards the substrate direction is formed in the protective cover plate, and the avoiding groove is used for avoiding the IC chip; the first sealant is filled between the edge of the protective cover plate and the substrate.

According to the utility model discloses a display panel, through the protection apron that sets up transparent material spare of moulding plastics, can utilize to dodge the recess and solve because the great structural problem that arouses of thickness of IC chip to avoid IC chip pressurized damage, play both effectual guard action to electronic ink film and IC chip. Moreover, the structure complexity and the processing procedure of the display panel can be simplified, and when the display panel falls or vibrates, the protective cover plate is not easy to crack, so that the structural strength and the anti-falling capacity of the display panel are enhanced.

In some embodiments, the protective cover is a water-blocking cover.

In some embodiments, a side surface of the protective cover plate facing the substrate is provided with a water blocking film.

In some embodiments, the water-blocking film has an avoidance opening disposed opposite to the avoidance groove.

In some embodiments, the bypass opening is configured as a closed loop having a contoured shape that matches a contoured shape of the IC chip.

In some embodiments, the electronic ink film includes a main body portion and two connecting portions, the two connecting portions are connected to the same side of the main body portion and are spaced apart from each other, each connecting portion is electrically connected to the substrate through silver paste, an avoiding gap is defined between the two connecting portions, and the IC chip is disposed at the avoiding gap.

In some embodiments, the display panel further comprises: the flexible circuit board is positioned outside the substrate, and one end of the flexible circuit board extends to the display side of the substrate so as to be electrically connected with the IC chip.

In some embodiments, the display panel further comprises: and the second sealant is arranged at the lap joint of the back surface of the flexible circuit board and the substrate.

In some embodiments, the first sealant further covers a side of the IC chip away from the substrate and surrounds the IC chip.

In some embodiments, the first sealant is disposed between the substrate and the protective cover plate and around the electronic ink film.

In some embodiments, the protective cover plate includes a flat plate portion and a frame portion, the flat plate portion is entirely located on the display side of the substrate, the frame portion extends from an edge of the flat plate portion toward the non-display side of the substrate to surround the peripheral sidewall of the substrate, and the first sealant is filled between the frame portion and the peripheral sidewall of the substrate.

In some embodiments, the protective cover plate is a flat plate structure and is entirely located on the display side of the substrate, and the first sealant is also entirely located on the display side of the substrate.

According to the utility model discloses display device of second aspect embodiment, include according to the utility model discloses the display panel of first aspect embodiment. According to the utility model discloses a display device, through setting up the display panel of above-mentioned first aspect embodiment to display device's quality has been improved, display device's structure and processing technology have been simplified.

Additional aspects and advantages of the invention 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 invention.

Drawings

Fig. 1 is a front view of a display panel according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A1-A1 of FIG. 1;

FIG. 3 is an enlarged view of the portion C1 circled in FIG. 2;

FIG. 4 is an enlarged view of the portion D1 circled in FIG. 2;

FIG. 5 is a cross-sectional view taken along line B1-B1 of FIG. 1;

FIG. 6 is an enlarged view of the portion E1 circled in FIG. 5;

fig. 7 is an enlarged view of a portion F1 circled in fig. 5;

FIG. 8 is a front view of the protective cover shown in FIG. 1;

FIG. 9 is a rear view of the protective cover shown in FIG. 8;

FIG. 10 is a sectional view taken along line G1-G1 of FIG. 9;

FIG. 11 is a sectional view taken along line H1-H1 of FIG. 9;

FIG. 12 is a rear view of the display panel shown in FIG. 1;

FIG. 13 is a schematic view of the substrate, the electronic ink film and the first sealant shown in FIG. 1;

fig. 14 is a front view of a display panel according to another embodiment of the present invention;

FIG. 15 is a cross-sectional view taken along line A2-A2 of FIG. 14;

FIG. 16 is an enlarged view of the portion C2 circled in FIG. 15;

FIG. 17 is an enlarged view of the portion D2 circled in FIG. 15;

FIG. 18 is a cross-sectional view taken along line B2-B2 of FIG. 14;

fig. 19 is an enlarged view of a portion E2 circled in fig. 18;

fig. 20 is an enlarged view of portion F2 circled in fig. 18;

FIG. 21 is a front view of the protective cover shown in FIG. 14;

FIG. 22 is a rear view of the protective cover shown in FIG. 21;

FIG. 23 is a sectional view taken along line G2-G2 of FIG. 22;

FIG. 24 is a sectional view taken along line H2-H2 of FIG. 22;

fig. 25 is a front view of a display panel according to still another embodiment of the present invention;

FIG. 26 is a cross-sectional view taken along line A3-A3 of FIG. 25;

fig. 27 is an enlarged view of the portion C3 circled in fig. 26;

fig. 28 is an enlarged view of portion D3 circled in fig. 26;

FIG. 29 is a sectional view taken along line B3-B3 of FIG. 25;

fig. 30 is an enlarged view of the portion E3 circled in fig. 29;

fig. 31 is an enlarged view of portion F3 circled in fig. 29;

FIG. 32 is a front view of the protective cover shown in FIG. 25;

FIG. 33 is a rear view of the protective cover shown in FIG. 32;

FIG. 34 is a sectional view taken along line G3-G3 of FIG. 33;

FIG. 35 is a sectional view taken along line H3-H3 of FIG. 33;

fig. 36 is a rear view of the display panel shown in fig. 25;

fig. 37 is a perspective view of the display panel shown in fig. 36;

fig. 38 is a front view of a display panel according to still another embodiment of the present invention;

FIG. 39 is a sectional view taken along line A4-A4 of FIG. 38;

FIG. 40 is an enlarged view of the portion C4 circled in FIG. 39;

FIG. 41 is an enlarged view of the portion D4 circled in FIG. 39;

FIG. 42 is a cross-sectional view taken along line B4-B4 of FIG. 38;

FIG. 43 is an enlarged view of the portion E4 circled in FIG. 42;

fig. 44 is an enlarged view of portion F4 circled in fig. 42;

FIG. 45 is a front view of the protective cover shown in FIG. 38;

FIG. 46 is a rear view of the protective cover shown in FIG. 45;

FIG. 47 is a sectional view taken along line G4-G4 of FIG. 46;

FIG. 48 is a sectional view taken along line H4-H4 of FIG. 46;

fig. 49 is a schematic diagram of a display device according to an embodiment of the present invention.

Reference numerals:

a display panel 100; a display device 1000;

a substrate 1;

an electronic ink film 2; a main body portion 21; a connecting portion 22; avoiding the notch 23; an IC chip 3;

a protective cover plate 4; an escape groove 41; a flat plate portion 42; a frame portion 43; a frame notch 44;

a first sealant 5; the penetration portion 50; a water-blocking film 6; an escape opening 61;

a flexible circuit board 7; a second sealant 8; silver paste 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order 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. This 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 disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

In contrast, the applicant finds that, in the electronic paper display panel with the above structure, the thickness of the IC chip is large, the water-blocking film needs to be avoided, but due to the limitation of the material characteristics of the water-blocking film, the water-blocking film can only be in a film form, and cannot be processed with a complex structure to be avoided, so that the water-blocking film can only be set in a form of bypassing the IC chip, that is, the water-blocking film can only be set in a shape the same as or similar to the electronic ink film to avoid the IC chip, so that the IC chip cannot be protected, and therefore, the IC chip can only be protected by coating white glue around and on the surface of the IC chip, so that the processing process is complex. Moreover, in order to ensure the structural reliability and avoid the exposure of the white glue, a glass cover plate and a shielding gasket are arranged on the front surface of the water-blocking film to play a role in protecting and shielding the white glue, so that the structure of the electronic paper display panel is complicated, the processing technology is more complicated, and the glass cover plate is easy to crack when falling or vibrating, and the product quality is influenced.

In order to solve at least one of the above technical problems, the present invention provides a display panel 100. Next, with reference to the drawings, a display panel 100 and a display device 1000 according to an embodiment of the present invention are described.

As shown in fig. 1-2, a display panel 100 according to an embodiment of the present invention includes: the display device comprises a substrate 1, an electronic ink film 2, an IC Chip 3 (abbreviation of Integrated Circuit Chip) and a protective cover plate 4, wherein the electronic ink film 2 is disposed on a display side of the substrate 1 (i.e. a display side of the display panel 100, and an opposite side of the display panel 100 is a non-display side or a back side of the display panel 100), the electronic ink film 2 is electrically connected to the substrate 1, the IC Chip 3 is also disposed on the display side of the substrate 1 and electrically connected to the substrate 1, that is, the IC Chip 3 is bound to the substrate 1. The substrate 1 may be a TFT (Thin Film Transistor, TFT) or other plastic substrate with a circuit structure, so as to control the electronic ink Film 2 through the electrical connection between the substrate 1 and the electronic ink Film 2, thereby achieving the display requirement. Therefore, according to the present invention, the Display panel 100 can adopt EPD (abbreviation of electrophoretic Display, electrophoretic Display technology) to realize Display, and the Display effect is close to the natural paper effect, avoiding the fatigue of reading.

With reference to fig. 3-7, the protective cover 4 is disposed on the electronic ink film 2 and the IC chip 3 on the side away from the substrate 1, the protective cover 4 is made of a transparent injection molding material, and the protective cover 4 is formed with an avoiding groove 41 opening toward the substrate 1, the avoiding groove 41 is used for avoiding the IC chip 3, that is, with reference to fig. 8-11, the protective cover 4 is formed with an avoiding groove 41 opening toward the substrate 1 for avoiding the IC chip 3, so that at least a part of the IC chip 3 is accommodated in the avoiding groove 41. From this, because protection apron 4 is the transparent material of moulding plastics to can be transparent working of plastics, and then can guarantee that the picture that electronic ink film 2 shows well sees through, with under the prerequisite of guaranteeing that display panel 100's picture well shows, strengthen display panel 100 structural strength and anti ability of falling, when display panel 100 takes place to fall or shake, be difficult for making cracked, promote display panel 100's quality.

And, because electronic ink film 2 and IC chip 3 all establish between protection cover plate 4 and base plate 1, make electronic ink film 2 and IC chip 3 all can receive protection of protection cover plate 4, the protection white glue that covers IC chip 3 among the correlation technique has been saved, and because protection cover plate 4 is the material spare of moulding plastics, thereby can process comparatively complicated structure, and then through setting up dodging recess 41 at the dorsal part of protection cover plate 4 (towards the one side of base plate 1 promptly), make at least part of IC chip 3 accomodate in dodging recess 41, the structural problem of having solved because the thickness of IC chip 3 is great arouses, make protection cover plate 4 can laminate well with electronic ink film 2, and avoid IC chip 3 pressurized damage, thereby play the effectual guard action to both electronic ink film 2 and IC chip 3.

As shown in fig. 2 to 7, the display panel 100 further includes a first sealant 5, and the first sealant 5 is filled between the edge of the protective cover plate 4 and the substrate 1, that is, at least a portion of the first sealant 5 is filled between the edge of the protective cover plate 4 and the substrate 1, so as to play a role in sealing, prevent moisture and the like from entering between the protective cover plate 4 and the substrate 1, and ensure reliability and service life of the display screen of the display panel 100. The first sealant 5 is not limited to be made of EC, and has good water blocking performance.

Therefore, according to the display panel 100 of the embodiment of the present invention, by providing the protective cover plate 4 made of the transparent injection molding material, firstly, since the protective cover plate 4 is a transparent member, the good penetration of the picture can be ensured, and the display performance of the display panel 100 is ensured; secondly, as the protective cover plate 4 is an injection molding piece, when the display panel 100 falls or vibrates, the protective cover plate 4 is not easy to crack, the structural strength and the anti-falling capacity of the display panel 100 are enhanced, and the quality of the display panel 100 is improved; thirdly, because the protection cover plate 4 is the injection molding to can process out the recess 41 of dodging that is used for dodging IC chip 3 on the protection cover plate 4, and then can utilize the protection cover plate 4 that has the recess 41 of dodging, solve because the great structural problem that arouses of the thickness of IC chip 3, make the protection cover plate 4 can laminate well with electronic ink film 2, and avoid IC chip 3 pressurized damage, thereby play to electronic ink film 2 and the effectual guard action of IC chip 3 both.

Furthermore, according to the utility model discloses display panel 100 can utilize protection apron 4 and sealed 5 of gluing, replaces the film 6 that blocks water among the correlation technique, the white glue around the IC chip 3, shields gasket and glass apron to simplified display panel 100's structure complexity and manufacturing procedure, promoted the structure protection and the water blocking nature requirement to display panel 100.

In order to further improve the water blocking performance of the display panel 100, at least the following three embodiments may also be adopted.

In the first embodiment, the protective cover 4 is made of water-blocking material, so that moisture and the like can be prevented from entering the back side of the protective cover 4 to affect the image display, and the water-blocking performance of the display panel 100 is improved.

In the second embodiment, the water blocking film 6 (as shown in fig. 14-24) is disposed on the surface (i.e. the back surface) of the protective cover 4 facing the substrate 1, so that the water blocking film 6 can be used to simply and effectively prevent moisture from entering the back side of the protective cover 4 to affect the image display, thereby improving the water blocking performance of the display panel 100.

In the third embodiment, the protective cover plate 4 is made of a water-blocking material, and the water-blocking film 6 is disposed on the surface (i.e., the back surface) of the protective cover plate 4 facing the substrate 1, so that the protective cover plate 4 and the water-blocking film 6 can be utilized to simply and effectively prevent moisture from entering the back side of the protective cover plate 4 to affect the image display, thereby improving the water-blocking performance of the display panel 100.

Therefore, according to the utility model discloses display panel 100, through the protection apron 4 that sets up to have the performance of blocking water and/or set up film 6 that blocks water at the dorsal part of protection apron 4, can guarantee the performance of blocking water effectively. In addition, it should be noted that materials having water-blocking properties are well known to those skilled in the art and will not be described here.

In some embodiments, as shown in fig. 22 to fig. 24, when the water-blocking film 6 is disposed on the surface of the protective cover 4 facing the substrate 1, the water-blocking film 6 has an avoiding opening 61 disposed opposite to the avoiding groove 41, that is, the avoiding opening 61 needs to cover the avoiding groove 41 when projected along the thickness direction of the display panel 100, so that the water-blocking film 6 and the IC chip 3 can be prevented from interfering with each other, and the IC chip 3 can be prevented from being damaged by pressure.

In some embodiments, as shown in fig. 14 and 22, the bypass opening 61 may be processed into a closed loop shape having a contour matching the contour shape of the IC chip 3, that is, the loop shape is not limited to a circular shape, and may be, for example, a polygonal loop shape, etc., as long as the contour shape of the bypass opening 61 is the same as or similar to the contour shape of the IC chip 3, the area of the bypass opening 61 may be effectively reduced, and the effective water blocking area of the water blocking film 6 may be increased without interference with the IC chip 3.

In some embodiments of the present invention, as shown in fig. 1, the electronic ink film 2 includes a main body 21 and two connecting portions 22 located on the same side of the main body 21 and spaced apart from each other, that is, the electronic ink film 2 includes the main body 21 and two connecting portions 22, the two connecting portions 22 are connected on the same side of the main body 21 and spaced apart from each other, each connecting portion 22 is electrically connected to the substrate 1 through the silver paste 9, an avoiding gap 23 is defined between the two connecting portions 22, and the IC chip 3 is located at the avoiding gap 23. Therefore, under the condition of avoiding the interference between the electronic ink film 2 and the IC chip 3 and the condition of ensuring the electric connection between the electronic ink film 2 and the substrate 1, the layout of the electronic ink film 2 and the IC chip 3 is compact, so that the area ratio of the display area of the electronic ink film 2 to the substrate 1 is improved, and the screen occupation ratio of the display panel 100 is improved.

It is understood that the manner of electrically connecting the connection portion 22 to the substrate 1 through the silver paste 9 is well known to those skilled in the art, that is, a groove is dug on the back surface of the connection portion 22 to expose the electrical connection layer, and the silver paste 9 is disposed in the groove region to electrically connect the electrical connection layer and the substrate 1, so as to achieve the electrical connection between the electronic ink film 2 and the substrate 1, which is not described herein again. In addition, it should be noted that the number of the connecting portions 22 is not limited, in other embodiments of the present invention, one or more than two connecting portions 22 may also be provided, and when the number of the connecting portions 22 is two or more, the problem that the normal display of the display panel 100 is affected by the damage of one of the connecting portions 22 can be avoided, so as to improve the reliability of the display panel 100.

In some embodiments of the present invention, as shown in fig. 1, the display panel 100 may further include: the flexible circuit board 7 is located outside the substrate 1, and one end of the flexible circuit board 7 extends to the display side of the substrate 1 to be electrically connected with the IC chip 3, so that the display panel 100 can be electrically connected with an external control unit, for example, a control system of the display device 1000, through the electrical connection between the flexible circuit board 7 and the IC chip 3, thereby realizing the display control of the display panel 100. Thus, the display panel 100 is electrically connected to an external control unit, and the connection is simplified. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the display panel 100 can be electrically connected to the external control unit in a more complex manner, which is not repeated herein.

In some embodiments of the present invention, as shown in fig. 12, when the display panel 100 includes the flexible circuit board 7, the second sealant 8 is disposed at the joint of the back surface of the flexible circuit board 7 and the substrate 1. Therefore, the second sealant 8 can be used for protecting the lap joint of the back surface of the flexible circuit board 7 and the substrate 1, the problems of breakage, fracture and the like of the flexible circuit board 7 at the lap joint are solved, the tensile capacity of the flexible circuit board 7 at the lap joint is improved, the water resistance of the display panel 100 at the lap joint is improved to a certain extent, and the reliability and the quality of the display panel 100 are improved.

In some embodiments, the material of the second sealant 8 is the same as the material of the first sealant 5, so that the materials and processes can be simplified, for example, the second sealant 8 can be coated simultaneously when the first sealant 5 is coated, so that the processes and materials can be simplified, and the cost can be reduced. Therefore, the procedure of independently coating the ultraviolet curing glue at the bending part of the flexible circuit board 7 in the related art is omitted, and when the second sealant 8 is also EC glue, the tear resistance and the push-pull strength of the flexible circuit board 7 at the lap joint part can be enhanced relative to the ultraviolet curing glue.

In some embodiments of the present invention, as shown in fig. 1 and 13, the first sealant 5 also covers the side of the IC chip 3 away from the substrate 1 and surrounds the IC chip 3, for example, the penetrating portion 50 of the first sealant 5 shown in fig. 13 covers the side of the IC chip 3 away from the substrate 1 and surrounds the IC chip 3. Therefore, the IC chip 3 can be further protected by the first sealant 5, the damage of the IC chip 3 is avoided, and moreover, the process of independently coating white glue around the IC in the related art is omitted, and the operation is simplified. It will be understood that the first sealant 5 covering the side of the IC chip 3 away from the substrate 1 and surrounding the IC chip 3 is also filled between the protective cover 4 and the substrate 1.

In some more specific embodiments, as shown in fig. 1 and 13, the first sealant 5 is disposed between the substrate 1 and the protective cover 4 and around the electronic ink film 2, i.e., not only the surface and periphery of the IC chip 3, but the area between the protective cover plate 4 and the substrate 1 and surrounding the electronic ink film 2 is filled with the first sealant 5, thereby achieving more reliable sealing, preventing moisture, and the like, improving the quality of the display panel 100, and the first sealant 5 is filled into the edge of the protective cover plate 4, and the first sealant 5 can automatically penetrate into the area surrounding the electronic ink film 2 in front of the substrate 1 and the protective cover plate 4, thereby reducing the process difficulty, as can be understood, the first sealant 5 surrounding the electronic ink film 2 is also filled between the protective cover plate 4 and the substrate 1.

Moreover, as shown in fig. 1, when the electronic ink film 2 defines the avoiding gap 23, the avoiding gap 23 may also be filled with the first sealant 5 to cover a side of the IC chip 3 away from the substrate 1 and surround the IC chip 3, and when the display panel 100 further includes the flexible circuit board 7, the first sealant 5 may also cover a portion of the flexible circuit board 7 extending to the display side of the substrate 1, so as to have a better protection effect.

The specific form of the protective cover 4 according to the embodiment of the present invention is not limited, and only two embodiments are described below as examples, but the present invention is not limited to the following two embodiments.

Example one

As shown in fig. 25 to 28 and 33 to 35, the protective cover plate 4 includes a flat plate portion 42 and a frame portion 43, the flat plate portion 42 is entirely located on the display side of the substrate 1, the frame portion 43 extends from an edge of the flat plate portion 42 toward the non-display side of the substrate 1 (i.e., the non-display side of the display panel 100) to surround the peripheral side wall of the substrate 1, and the first sealant 5 is filled between the frame portion 43 and the peripheral side wall of the substrate 1, that is, the first sealant 5 can be filled in a gap between the frame portion 43 and the peripheral side wall of the substrate 1. Accordingly, the protective cover 4 can provide a more reliable protective function, and can serve as an appearance member of the display device 1000 used for the display panel 100, thereby simplifying the structure and the manufacturing process of the display device 1000, reducing the cost, reducing the thickness, and realizing a light and thin design.

In some embodiments of the present invention, as shown in fig. 33, when the display panel 100 includes the flexible circuit board 7 described above, the frame notch 44 may be set on the frame portion 43, and one end of the flexible circuit board 7 may be extended into the display side of the substrate 1 through the frame notch 44, so as to ensure that one end of the flexible circuit board 7 may be extended into the display side of the substrate 1 to be electrically connected with the IC chip 3 without bending.

For example, fig. 25 to 37 are specific examples of the first embodiment, in this example, the protective cover 4 is a water blocking material cover, and the water blocking film 6 is not disposed on the back side (i.e., the non-display side of the display panel 100) of the protective cover 4.

For example, fig. 38 to 48 show another specific example of the first embodiment, in which the back side of the protective cover 4 (i.e., the non-display side of the display panel 100) is provided with the water blocking film 6.

Example two

As shown in fig. 1-4 and 9-11, the protective cover plate 4 is a flat plate structure and is located on the display side of the substrate 1, and the first sealant 5 is located on the display side of the substrate 1, that is, the first sealant 5 is filled in a gap between the edge of the protective cover plate 4 and the peripheral sidewall of the substrate 1 from the display side of the substrate 1. Thus, the second embodiment is mainly characterized in that the protective cover 4 does not have the frame portion 43, so that the structure of the protective cover 4 can be simplified, and in this case, when the display panel 100 is used in the display device 1000, an additional exterior panel can be added to the display device 1000.

For example, fig. 1 to 13 illustrate a specific example of the second embodiment, in this example, the protective cover 4 is a water-blocking material cover, and the water-blocking film 6 is not disposed on the back side (i.e., the non-display side of the display panel 100) of the protective cover 4.

For example, fig. 14 to 24 show another specific example of the second embodiment, in this example, the back side (i.e., the non-display side of the display panel 100) of the protective cover 4 is provided with a water-blocking film 6.

In conclusion, according to the utility model discloses a display panel 100, through setting up protection cover plate 4, can utilize to dodge recess 41 and solve the structural problem because IC chip 3's thickness is great to avoid IC chip 3 pressurized damage, play both effectual guard action to electronic ink film 2 and IC chip 3. Moreover, the structural complexity and the processing procedure of the display panel 100 can be simplified, and when the display panel 100 falls or vibrates, the protective cover plate 4 is not easy to be cracked, so that the structural strength and the anti-falling capability of the display panel 100 are enhanced.

Referring to fig. 49, according to the utility model discloses a Display device 1000, can include according to the utility model discloses any embodiment's Display panel 100, when Display panel 100 is for the aforesaid adopts EPD (the abbreviation of electrophoreses Display, Electrophoresis Display technology) to realize showing, Display device 1000's specific type is not limited, for example can be electronic tags (such as supermarket shelf label, suitcase label, medicine label, sick bed label), electronic book, electronic tablet, thermometer, mobile wearing equipment (such as cell-phone, wrist-watch), typewriter, show board, bus stop board, refuel stop board, bill-board etc. do not describe here in detail, and after Display device 1000's specific type is confirmed, other constitutions that Display device 1000 can be known to technical staff in the art, do not do yet.

In the description of the present invention, it is to be understood that 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 implying any 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 invention, "a plurality" means two or more unless specifically defined otherwise.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A display panel (100), comprising:

a substrate (1);

the electronic ink film (2) is arranged on the display side of the substrate (1), and the electronic ink film (2) is electrically connected with the substrate (1);

an IC chip (3), wherein the IC chip (3) is also arranged on the display side of the substrate (1) and is electrically connected with the substrate (1);

the protective cover plate (4) is arranged on one side, far away from the substrate (1), of the electronic ink film (2) and the IC chip (3), the protective cover plate (4) is made of a transparent injection molding material, an avoiding groove (41) which is open towards the substrate (1) direction is formed in the protective cover plate (4), and the avoiding groove (41) is used for avoiding the IC chip (3);

the protective cover plate is characterized by comprising a first sealant (5), wherein the first sealant (5) is filled between the edge of the protective cover plate (4) and the substrate (1).

2. The display panel (100) according to claim 1, wherein the protective cover (4) is a water-blocking cover.

3. The display panel (100) according to claim 1, wherein a surface of the protective cover sheet (4) facing the substrate (1) is provided with a water blocking film (6).

4. The display panel (100) according to claim 3, wherein the water blocking film (6) has an avoidance opening (61) disposed opposite to the avoidance groove (41).

5. The display panel (100) according to claim 4, wherein the escape opening (61) is configured as a closed loop shape having a contour shape matching a contour shape of the IC chip (3).

6. The display panel (100) according to claim 1, wherein the electronic ink film (2) comprises a main body portion (21) and two connecting portions (22), the two connecting portions (22) are connected to the same side of the main body portion (21) and are spaced apart from each other, each connecting portion (22) is electrically connected to the substrate (1) through a silver paste (9), an avoiding gap (23) is defined between the two connecting portions (22), and the IC chip (3) is disposed at the avoiding gap (23).

7. The display panel (100) of claim 1, further comprising:

the flexible circuit board (7) is located outside the substrate (1) and one end of the flexible circuit board (7) extends to the display side of the substrate (1) so as to be electrically connected with the IC chip (3).

8. The display panel (100) of claim 7, further comprising:

and the second sealant (8) is arranged at the lap joint of the back surface of the flexible circuit board (7) and the substrate (1).

9. The display panel (100) according to claim 1, wherein the first sealant (5) further covers a side of the IC chip (3) away from the substrate (1) and surrounds the IC chip (3).

10. The display panel (100) according to claim 9, wherein the first sealant (5) is disposed between the substrate (1) and the protective cover sheet (4) and around the electronic ink film (2).

11. The display panel (100) according to any one of claims 1 to 10, wherein the protective cover plate (4) comprises a flat plate portion (42) and a frame portion (43), the flat plate portion (42) is entirely located on the display side of the substrate (1), the frame portion (43) extends from an edge of the flat plate portion (42) toward the non-display side of the substrate (1) to be disposed around a peripheral sidewall of the substrate (1), and the first sealant (5) is filled between the frame portion (43) and the peripheral sidewall of the substrate (1).

12. The display panel (100) according to any one of claims 1 to 10, wherein the protective cover sheet (4) is of a flat plate structure to be entirely located on the display side of the substrate (1), and the first sealant (5) is also entirely located on the display side of the substrate (1).

13. A display device (1000) characterized by comprising a display panel (100) according to any one of claims 1-12.