CN111564109B - Cover plate glass and display device with same - Google Patents
Cover plate glass and display device with same Download PDFInfo
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- CN111564109B CN111564109B CN202010375467.XA CN202010375467A CN111564109B CN 111564109 B CN111564109 B CN 111564109B CN 202010375467 A CN202010375467 A CN 202010375467A CN 111564109 B CN111564109 B CN 111564109B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The application discloses a cover plate glass and a display device with the same. This cover glass includes: a first section, a second section, and a third section; the first section and the third section are respectively and smoothly connected with two opposite ends of the second section; the thickness of the first section is gradually increased along the direction from one end connected with the second section to one end far away from the second section; the thickness of the third section gradually increases along the direction from the end connected with the second section to the end far away from the second section. This application sets up the thickness of this cover plate glass's first section and third section to from increasing gradually to the cover plate glass edge with the second section juncture, when this cover plate glass used in display device, set up first section and third section into cover plate glass's non-bending section, because cover plate glass's non-bending section thickness increases, reduced the risk of the little crack at cover plate glass edge to the inside extension of cover plate glass to display device's yields has been improved.
Description
Technical Field
The application relates to the technical field of display, in particular to cover plate glass and a display device with the same, and belongs to the technical field of manufacturing of display devices.
Background
In recent years, flat panel displays such as Liquid Crystal Display (LCD) displays and Organic Light-Emitting Diode (OLED) displays have gradually replaced Cathode Ray Tube (CRT) displays, and become mainstream products in the Display market. Among them, the OLED display is considered as the most promising display due to its advantages of wide viewing angle, high color gamut, and low power consumption, and the development of dynamically bendable (DF) OLED displays is also becoming the target of industry development.
In the development process of the DF OLED display, it is necessary to replace the conventional rigid Cover Glass (CG) (with a thickness of 500-.
Disclosure of Invention
The embodiment of the application provides a cover plate glass and a display device with the same, which can reduce the risk of microcracks at the edge of the cover plate glass extending towards the inside of the cover plate glass and improve the yield of the display device.
The embodiment of the application provides a cover glass, includes:
a first section, a second section, and a third section; wherein the content of the first and second substances,
the first section and the third section are respectively and smoothly connected with two opposite ends of the second section;
the thickness of the first section gradually increases along the direction from the end connected with the second section to the end far away from the second section;
the thickness of the third section gradually increases along the direction from the end connected with the second section to the end far away from the second section.
In some embodiments, the first surface of the first section, the first surface of the second section, and the first surface of the third section are all in a first plane.
In some embodiments, the second section is uniform in thickness.
In some embodiments, the minimum thickness of the first section and the minimum thickness of the third section are both equal to the thickness of the second section.
In some embodiments, the first section and the third section are arranged axisymmetrically about a centerline; wherein the content of the first and second substances,
the centerline is a straight line passing through a geometric center of the second section and perpendicular to the first plane.
In some embodiments, a maximum thickness of the first section and a maximum thickness of the third section are each no greater than 500 μm.
In some embodiments, the thickness of the second section ranges from 50 μm to 100 μm.
In some embodiments, the length of the second section ranges from 5 cm to 13 cm.
The embodiment of the present application further provides a display device, including a bending section and a non-bending section connected to the bending section, where the non-bending section includes a first non-bending subsection and a second non-bending subsection, and the first non-bending subsection and the second non-bending subsection are respectively connected to two opposite ends of the bending section, and the display device further includes:
a panel module, and a cover glass as described in any of the above embodiments; wherein the content of the first and second substances,
the cover plate glass is arranged on the surface of the panel module; and the number of the first and second electrodes,
the first section of the cover glass is arranged corresponding to the first non-bending subsection, the second section of the cover glass is arranged corresponding to the bending subsection, and the third section of the cover glass is arranged corresponding to the second non-bending subsection.
In some embodiments, the panel module comprises:
the first functional layer is a middle frame;
the first optical adhesive layer is arranged on the surface of the middle frame;
the second functional layer is a back plate and is arranged on the surface of the first optical adhesive layer;
the third functional layer is an OLED display layer and is arranged on the surface of the back plate;
the second optical adhesive layer is arranged on the surface of the OLED display layer;
the fourth functional layer is a touch panel and is arranged on the surface of the second optical adhesive layer;
the fifth functional layer is a polaroid and is arranged on the surface of the touch panel;
the third optical adhesive layer is arranged on the surface of the polaroid;
the sixth functional layer is a covering window and is arranged on the surface of the third optical adhesive layer;
the cover glass is arranged on the surface of the cover window.
The cover plate glass and the display device with the cover plate glass provided by the embodiment of the application have the advantages that the thickness of the first section and the thickness of the third section of the cover plate glass are gradually increased from the junction of the first section and the second section to the edge of the cover plate glass, when the cover plate glass is applied to the display device, the first section and the third section are made to correspond to the non-bending section of the display device, namely the first section and the third section are set to be the non-bending section of the cover plate glass, the thickness of the non-bending section of the cover plate glass is increased, the risk that microcracks at the edge of the cover plate glass extend towards the inside of the cover plate glass is reduced, and therefore the yield of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a cover glass provided in an embodiment of the present application in one state;
FIG. 2 is a schematic perspective view of the cover glass shown in FIG. 1 in another state;
FIG. 3 is a schematic sectional view of the cover glass shown in FIG. 1 taken along the line III-III;
fig. 4 is a schematic diagram of a film structure of a display device according to an embodiment of the present disclosure;
fig. 5 is a schematic view of a film structure of a display device according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application 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, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Fig. 1 is a schematic perspective view of a cover glass provided in an embodiment of the present application in a state, where as shown in fig. 1, a cover glass 2 includes: a first section 10, a second section 20 and a third section 30. The first section 10 and the third section 30 are respectively gently connected to two opposite ends of the second section 20, that is, the first section 10 is gently connected to one end of the second section 20, and the third section 30 is gently connected to one end of the second section 20 far away from the first section 10.
The thickness of the first section 10 gradually increases in a direction from an end connected to the second section 20 to an end away from the second section 20.
It should be noted that the end of the first section 10 connected to the second section 20 is the end (end a) where the two sections are located at the intersection, and the end of the first section 10 away from the second section 20 is the end (end B) where the edge of the cover glass 2 is located. The thickness of the first section 10 gradually increases in a direction from the a end to the B end.
The thickness of the third section 30 gradually increases in a direction from the end connected to the second section 20 to the end away from the second section 20.
It should be noted that the end of the third section 30 connected to the second section 20 is the end (C end) where the two sections are located at the intersection, and the end of the third section 30 away from the second section 20 is the end (D end) where the edge of the cover glass 2 is located. The thickness of the third section 30 gradually increases in a direction from the C-end to the D-end.
In addition, it should be noted that the second section 20 is thinner than conventional rigid cover glasses. When the cover glass 2 is applied to a display device, the second section 20 is made to correspond to a bent section of the display device, i.e., the second section 20 is set as the bent section of the cover glass 2, which facilitates the bending of the display device due to the thinner thickness of the second section 20.
The cover glass 2 that this application embodiment provided, the thickness of first section 10 and third section 30 with cover glass 2 sets up to increase gradually from the junction with second section 20 to cover glass 2 edge, when cover glass 2 was used in the display device, make first section 10 and third section 30 correspond to the non-bending section of display device, be about to first section 10 and third section 30 set up to the non-bending section of cover glass 2, because cover glass 2's non-bending section thickness increases, the risk that the micro crack at cover glass 2 edge extends to cover glass 2 inside has been reduced, thereby display device's yields has been improved.
In some embodiments, the cover glass 2 is described in connection with fig. 2. Fig. 2 is a schematic perspective view of the cover glass shown in fig. 1 in another state, and as shown in fig. 2, the first surface 101 of the first section 10, the first surface 201 of the second section 20, and the first surface 301 of the third section 30 all lie in the same plane, which is defined as the first plane for convenience of description.
It can be understood that the first surface 101 of the first section 10, the first surface 201 of the second section 20, and the first surface 301 of the third section 30 of the cover glass 2 are disposed in the same plane (i.e., the first plane) to facilitate connection with a panel module in a display device.
In some embodiments, the cover glass 2 is described in connection with fig. 3. Fig. 3 is a schematic cross-sectional view of the cover glass shown in fig. 1 taken along line III-III, and the second section 20 has a uniform thickness as shown in fig. 3.
The surface opposite to the first surface 201 of the second section 20 is taken as the second surface of the second section 20, and the thickness of the second section 20 is uniform, that is, the first surface 201 and the second surface of the second section 20 are both planar and parallel.
In some embodiments, the cover glass 2 is described in conjunction with fig. 3, and as shown in fig. 3, the minimum thickness of the first section 10 and the minimum thickness of the third section 30 are both equal to the thickness of the second section 20.
The thickness of the first section 10 gradually increases in a direction from the end connected to the second section 20 to the end away from the second section 20, and thus, the thickness thereof is the smallest at the end (end a) connected to the second section 20, and the thickness at the end a is referred to as the minimum thickness of the first section 10. At this time, the minimum thickness of the first section 10 is equal to the thickness of the second section 20.
It can be understood that the minimum thickness of the first section 10 is equal to the thickness of the second section 20, so that the thickness of the second section 20 is gradually transited toward the first section 10, and the comfort of the user in using the hand feeling is improved.
The thickness of the third section 30 gradually increases in a direction from the end connected to the second section 20 to the end away from the second section 20, and thus, the thickness thereof is smallest at the end (C-end) connected to the second section 20, and the thickness at the C-end is referred to as the minimum thickness of the third section 30. At this time, the minimum thickness of the third section 30 is equal to the thickness of the second section 20.
It can be understood that the minimum thickness of the third section 30 is equal to the thickness of the second section 20, so that the thickness transition of the second section 20 in the direction toward the third section 30 is relatively smooth, and the comfort of the user in using the hand feeling is improved.
In some embodiments, the cover glass 2 is described with reference to fig. 3, and as shown in fig. 3, the first section 10 and the third section 30 are disposed axisymmetrically with respect to the center line 3; the central line 3 is a straight line passing through the geometric center of the second section 20 and perpendicular to the first plane.
Assuming now that fig. 3 is a section through the center line 3, it should be noted that the center line 3 is a straight line passing through the geometric center of the second section 20 and perpendicular to the first plane where the first section 10, the second section 20 and the third section 30 are located.
The first segment 10 and the third segment 30 are symmetrically disposed about the center line 3, and in this case, a plane passing through the center line 3 and perpendicular to the cross section is defined as a center plane, an arbitrary position of the first segment 10 is defined as a first position, and an arbitrary position of the third segment 30 is defined as a second position, and if a distance from the first position to the center plane is equal to a distance from the second position to the center plane, a thickness of the first segment 10 at the first position is equal to a thickness of the third segment 30 at the second position.
It can be understood that, since the first section 10 and the third section 30 of the cover glass 2 are disposed axisymmetrically with respect to the center line 3, when it is applied to a display device, the bending symmetry of the display device is improved.
In some embodiments, the cover glass 2 is described in conjunction with fig. 3, and as shown in fig. 3, neither the maximum thickness of the first section 10 nor the maximum thickness of the third section 30 is greater than 500 μm.
The maximum thickness of the first section 10 is the thickness of the end (B end) thereof away from the second section 20, and the maximum thickness of the third section 30 is the thickness of the end (D end) thereof away from the second section 20. Since the first, second and third sections 10, 20, 30 all use non-rigid bendable cover glass, the flexibility is greatly reduced once its thickness exceeds 500 μm, and therefore, in this embodiment, neither the maximum thickness of the first section 10 nor the maximum thickness of the third section 30 exceeds 500 μm.
In some embodiments, the thickness of the second section 20 ranges from 50 to 100 μm.
It should be noted that, since the second section 20 corresponds to the bending section of the display device when the cover glass 2 is applied to the display device, the second section 20 has a thinner thickness compared to the conventional rigid cover glass for facilitating bending, and the thickness is usually in the range of 50-100 μm.
In some embodiments, the length of the second section 20 ranges from 5 to 13 cm.
Fig. 4 is a schematic diagram of a film structure of a display device according to an embodiment of the present disclosure, where the display device includes a bending section and a non-bending section connected to the bending section, the non-bending section includes a first non-bending subsection and a second non-bending subsection, and the first non-bending subsection and the second non-bending subsection are respectively connected to two opposite ends of the bending section, as shown in fig. 4, the display device further includes:
a panel module 1 and a cover glass 2 as described in any of the above embodiments; the cover glass 2 is arranged on the surface of the panel module 1; moreover, the first section 10 of the cover glass 2 is disposed corresponding to the first non-bending sub-section, the second section 20 of the cover glass 2 is disposed corresponding to the bending section, and the third section 30 of the cover glass 2 is disposed corresponding to the second non-bending sub-section.
Note that the cover glass 2 includes a first section 10, a second section 20, and a third section 30. Wherein the first section 10 and the third section 30 are gently connected with the opposite ends of the second section 20, respectively. The thickness of the first section 10 gradually increases in a direction from an end connected to the second section 20 to an end away from the second section 20. The thickness of the third section 30 gradually increases in a direction from the end connected to the second section 20 to the end away from the second section 20.
In addition, it should be noted that the second section 20 is thinner than conventional rigid cover glasses. When the cover glass 2 is applied to a display device, the second section 20 is made to correspond to a bending section of the display device, that is, the second section 20 is set as the bending section of the cover glass 2, so that the bending of the display device is facilitated due to the thinner thickness of the second section 20.
The display device that this application embodiment provided, set up the thickness of first section 10 and third section 30 of cover glass 2 to increase gradually from the junction with second section 20 to cover glass 2 edge, when cover glass 2 was used in the display device, make first section 10 and third section 30 correspond to the non-bending section of display device, be about to first section 10 and third section 30 set up the non-bending section of cover glass 2, because cover glass 2's non-bending section thickness increases, the risk that the microcrack at cover glass 2 edge extended to cover glass 2 inside has been reduced, thereby display device's yields has been improved.
In some embodiments, a film structure of a display device is further described with reference to fig. 5, fig. 5 is a schematic view of a film structure of a display device according to another embodiment of the present disclosure, and as shown in fig. 5, a panel module 1 in the display device includes:
the first functional layer, is a middle frame 501.
The first optical adhesive layer 502 is disposed on the surface of the middle frame 501.
The second functional layer, which is a back plate 503, is disposed on the surface of the first optical adhesive layer 502.
The third functional layer, which is an OLED display layer 504, is disposed on the surface of the backplane 503.
The second optical adhesive layer 505 is disposed on the surface of the OLED display layer 504.
A fourth functional layer, which is a touch panel 506, disposed on the surface of the second optical adhesive layer 505.
The fifth functional layer, which is a polarizer 507, is disposed on the surface of the touch panel 506.
And a third optical adhesive layer 508 disposed on the surface of the polarizer 507.
The sixth functional layer is a cover window 509 and is disposed on the surface of the third optical adhesive layer 508.
The cover glass 2 is disposed on the surface of the cover window 509.
It should be noted that the first optical adhesive layer 502, the second optical adhesive layer 505, and the third optical adhesive layer 508 are all OCA optical adhesive layers, the viscosity and the thickness of each OCA optical adhesive layer may be the same or different, the viscosity and the thickness of each OCA optical adhesive layer are determined according to the film layer material to which the OCA optical adhesive layer is bonded, and this embodiment does not specifically limit the invention.
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 above embodiments of the present application are described in detail, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; 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; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A cover glass, comprising:
a first section, a second section and a third section, the first section and the third section being configured as non-bent sections, the second section being configured as bent sections; wherein the content of the first and second substances,
the first section and the third section are respectively and smoothly connected with two opposite ends of the second section;
the thickness of the first section gradually increases along the direction from the end connected with the second section to the end far away from the second section;
the thickness of the third section gradually increases along the direction from the end connected with the second section to the end far away from the second section.
2. The cover glass of claim 1, wherein the first surface of the first section, the first surface of the second section, and the first surface of the third section are all in a first plane.
3. The cover glass of claim 2, wherein the second section has a uniform thickness.
4. The cover glass of claim 3, wherein the minimum thickness of the first segment and the minimum thickness of the third segment are each equal to the thickness of the second segment.
5. The cover glass of claim 4, wherein the first section and the third section are disposed axisymmetrically about a centerline; wherein the content of the first and second substances,
the centerline is a straight line passing through a geometric center of the second section and perpendicular to the first plane.
6. The cover glass of claim 1, wherein the maximum thickness of the first segment and the maximum thickness of the third segment are each no greater than 500 μ ι η.
7. The cover glass of claim 1, wherein the thickness of the second segment ranges from 50 μ ι η to 100 μ ι η.
8. The cover glass of claim 1, wherein the length of the second section ranges from 5 cm to 13 cm.
9. A display device, comprising a bending section and a non-bending section connected with the bending section, wherein the non-bending section comprises a first non-bending subsection and a second non-bending subsection, and the first non-bending subsection and the second non-bending subsection are respectively connected with two opposite ends of the bending section, the display device further comprising:
a panel module, and the cover glass of any one of claims 1-8; wherein the content of the first and second substances,
the cover plate glass is arranged on the surface of the panel module; and the number of the first and second electrodes,
the first section of the cover glass is arranged corresponding to the first non-bending subsection, the second section of the cover glass is arranged corresponding to the bending subsection, and the third section of the cover glass is arranged corresponding to the second non-bending subsection.
10. The display device according to claim 9, wherein the panel module comprises:
the first functional layer is a middle frame;
the first optical adhesive layer is arranged on the surface of the middle frame;
the second functional layer is a back plate and is arranged on the surface of the first optical adhesive layer;
the third functional layer is an OLED display layer and is arranged on the surface of the back plate;
the second optical adhesive layer is arranged on the surface of the OLED display layer;
the fourth functional layer is a touch panel and is arranged on the surface of the second optical adhesive layer;
the fifth functional layer is a polaroid and is arranged on the surface of the touch panel;
the third optical adhesive layer is arranged on the surface of the polaroid;
the sixth functional layer is a covering window and is arranged on the surface of the third optical adhesive layer;
the cover glass is arranged on the surface of the cover window.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010375467.XA CN111564109B (en) | 2020-05-07 | 2020-05-07 | Cover plate glass and display device with same |
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| CN202010375467.XA CN111564109B (en) | 2020-05-07 | 2020-05-07 | Cover plate glass and display device with same |
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| CN111564109A CN111564109A (en) | 2020-08-21 |
| CN111564109B true CN111564109B (en) | 2022-08-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100675168B1 (en) * | 1999-10-21 | 2007-01-29 | 마쯔시다덴기산교 가부시키가이샤 | Thin-film transistor, method of manufacture thereof, and thin-film transistor lcd |
| KR102655011B1 (en) * | 2016-05-30 | 2024-04-08 | 엘지디스플레이 주식회사 | Display device |
| CN110767823B (en) * | 2018-07-27 | 2021-01-22 | 京东方科技集团股份有限公司 | Flexible display panel and display device |
| CN109872629A (en) * | 2019-01-31 | 2019-06-11 | 武汉天马微电子有限公司 | Cover board and display device |
| CN110085138A (en) * | 2019-04-22 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display module |
| CN110379306A (en) * | 2019-06-10 | 2019-10-25 | 武汉华星光电半导体显示技术有限公司 | A kind of cover board of bent display panel, bent display panel and display device |
| CN110437752B (en) * | 2019-07-08 | 2020-09-08 | 武汉华星光电半导体显示技术有限公司 | Optical cement, display panel and manufacturing method of optical cement |
| CN110648593A (en) * | 2019-09-27 | 2020-01-03 | 昆山工研院新型平板显示技术中心有限公司 | Cover plate and display device |
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