Screen module and electronic equipment
By optimizing the angle and thickness of the substrate of the touch layer and the first metal touch layer in the OLED screen module, the problems of the packaging method being unable to adapt to curved screens and insufficient compression resistance are solved, thereby improving the structural strength and compression resistance of the screen module.
Patent Information
- Application Number
- CN202422626830.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In existing technologies, the packaging methods of OLED screens cannot adapt to curved or flexible screens, and the thin-film packaging has insufficient resistance to compression, resulting in insufficient structural strength and easy breakage and packaging failure.
The touch layer design includes a substrate and a first metal touch layer on the side opposite to the encapsulation layer. The first part of the first metal touch layer has an angle of less than 77° with the substrate. The structural strength is enhanced by adjusting the thickness of the metal layer and the inorganic layer.
This reduces stress concentration, improves the structural strength of the touch layer and encapsulation layer, avoids damage and encapsulation failure, and enhances the screen module's resistance to compression.
Smart Images
Figure CN223639649U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the field of electronic technology, and in particular, to a screen module and an electronic device. BACKGROUND
[0002] An OLED (Organic Light-Emitting Diode) screen needs to encapsulate a display body in the assembly process, and the encapsulation can adopt glass encapsulation and thin film encapsulation and the like.
[0003] However, the glass encapsulation cannot be adapted to scenarios such as a curved screen or a flexible screen, and the thin film encapsulation also has a problem of insufficient extrusion resistance due to a very thin thickness. UTILITY MODEL CONTENT
[0004] The present disclosure provides an electronic device to solve the related technical problems.
[0005] According to a first aspect of the present disclosure, a screen module is provided, comprising a display body, an encapsulation layer, and a touch layer;
[0006] The encapsulation layer covers the display body, and the touch layer is arranged on a side of the encapsulation layer opposite to the display body;
[0007] The touch layer comprises a base body and a first metal touch layer arranged on a side of the base body opposite to the encapsulation layer; the first metal touch layer comprises a first part protruding from a first mating surface of the base body, and an included angle between a first side surface of the first part connected with the first mating surface and the first mating surface is less than 77°.
[0008] Optionally, the first metal touch layer comprises a first metal layer, a second metal layer, and a third metal layer arranged in layers, and the second metal layer is located between the first metal layer and the third metal layer.
[0009] The sum of the thicknesses of the first metal layer and the third metal layer is greater than or equal to 46 nm and less than or equal to 54 nm, and the thickness of the second metal layer is greater than or equal to 278 nm and less than or equal to 282 nm.
[0010] Optionally, the thickness of the first metal layer is greater than or equal to 18 nm and less than or equal to 22 nm.
[0011] Optionally, the thickness of the third metal layer is greater than or equal to 28 nm and less than or equal to 32 nm.
[0012] Optionally, the base body comprises a first touch inorganic layer adjacent to the first metal touch layer; the thickness of the first touch inorganic layer is greater than or equal to 348 nm and less than or equal to 352 nm.
[0013] Optionally, the substrate comprises a second metal touch layer and a first touch inorganic layer adjacent to the first metal touch layer, the second metal touch layer is located on a side of the first touch inorganic layer opposite to the first metal touch layer; the first metal touch layer comprises a second part connected to the first part, the second part is connected to the second metal touch layer through the first touch inorganic layer.
[0014] Optionally, the first touch inorganic layer comprises a first region, a third region bent relative to the first region, and a second region connecting adjacent third regions; the second region and the third region enclose an accommodation space, the second metal touch layer is arranged in the accommodation space, and the first matching surface is arranged on a side of the second region opposite to the accommodation space.
[0015] Optionally, the substrate comprises a second touch inorganic layer adjacent to the second metal touch layer; the thickness of the second touch inorganic layer is greater than or equal to 248 nm and less than or equal to 252 nm.
[0016] Optionally, the included angle between the first side surface and the first matching surface is less than or equal to 67° and greater than or equal to 64°.
[0017] Optionally, the screen module further comprises a cover layer, the touch layer, the encapsulation layer and the display body are sequentially assembled on a side of the cover layer; the cover layer comprises at least one curved surface structure.
[0018] Optionally, the cover layer comprises four corners, each of the corners is a curved surface structure; the touch layer, the encapsulation layer and the display body are sequentially assembled on a side of the cover layer to form a four-curved surface screen.
[0019] Optionally, the screen module further comprises a cover layer and a protective layer, the protective layer is arranged on a side of the display body opposite to the cover layer; the protective layer is provided with a avoiding gap matched with the fingerprint module.
[0020] According to a second aspect of the present disclosure, an electronic device is provided, the electronic device comprising any of the screen modules of the first aspect.
[0021] The technical solutions provided by the present disclosure can at least achieve the following beneficial effects:
[0022] The touch layer of the screen module of the present disclosure comprises a substrate and a first metal touch layer arranged on the side of the substrate opposite to the encapsulation layer. The first metal touch layer comprises a first part protruding from the first mating surface of the substrate. The included angle between the first side surface of the first part connected with the first mating surface and the first mating surface is less than 77°, which reduces the stress concentration at the contact position of the first part and the first mating surface, helps to improve the structural strength of the touch layer and the encapsulation layer located at the bottom of the touch layer, and avoids damage, encapsulation failure and other problems caused by stress concentration.
[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present specification. BRIEF DESCRIPTION OF DRAWINGS
[0024] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present specification and, together with the specification, serve to explain the principles of the present specification.
[0025] Figure 1 is a schematic diagram of a partial structure of an electronic device in an exemplary embodiment of the present disclosure;
[0026] Figure 2 is a schematic diagram of a partial structure of an electronic device in another exemplary embodiment of the present disclosure;
[0027] Figure 3 is a schematic diagram of a partial structure of an electronic device in still another exemplary embodiment of the present disclosure;
[0028] Figure 4 is a schematic diagram of a partial structure of an electronic device in still another exemplary embodiment of the present disclosure.
[0029] LIST OF REFERENCE NUMERALS
[0030] Screen module 1;
[0031] Display body 11;
[0032] Encapsulation layer 12; inorganic thin film layer 121; organic thin film layer 122;
[0033] Touch layer 13; first metal touch layer 131; first part 1311; first side surface 1311a; second part 1312; substrate 132; second metal touch layer 1321; first mating surface 1321a; first region 1321b; second region 1321c; third region 1321d; first touch inorganic layer 1322; second touch inorganic layer 1323. DETAILED DESCRIPTION
[0034] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative configurations rather than to limit the application to the exemplary embodiments described herein. It is to be understood that other equipment and processes can be utilized in accordance with the principles of the disclosure, and that the exemplary embodiments described herein are presented for purposes of example only.
[0035] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Unless otherwise defined, technical and scientific terms used herein have the same meaning as would be understood by one of ordinary skill in the art. The terms "first", "second", and the like, as used in the description and the claims, do not have any specific meaning, and are used only to distinguish one element from another. Also, the terms "a" and "an" are used in the description and the claims to mean "one or more" of the items being described. The terms "plurality" and "a plurality" mean two or more. Unless otherwise indicated, the terms "front", "back", "up", "down", and the like in the description and the claims are used to indicate relative positions of the components being described, and are not meant to be limiting. The terms "comprise", "comprising", "include", "including", and the like are meant to be interpreted as specifying the presence of the stated features or components but do not preclude the presence or addition of one or more other features, components, or steps. The term "connected" and "coupled" are not restricted to physical or mechanical connections or couplings, and can include electrical coupling.
[0036] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms "a", "an" and "the" used in the description and the claims are intended to include both singular and plural forms, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", or "includes" and / or "including" when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0037] An OLED (Organic Light-Emitting Diode) screen needs to be encapsulated during assembly. The encapsulation can be performed by glass encapsulation or thin film encapsulation. However, glass encapsulation cannot be used in scenarios such as a curved screen or a flexible screen. Thin film encapsulation also has a problem of insufficient extrusion resistance due to its thin thickness.
[0038] The present disclosure provides a screen module. Figure 1 is a schematic view of a cross-sectional structure of a screen module in an exemplary embodiment of the present disclosure, and Figure 1As shown, the screen module 1 includes a display body 11, an encapsulation layer 12, and a touch layer 13. The encapsulation layer 12 covers the display body 11, and the touch layer 13 is arranged on a side of the encapsulation layer 12 opposite to the display body 11. The touch layer 13 includes a base body 132 and a first metal touch layer 131 arranged on a side of the base body 132 opposite to the encapsulation layer 12. The first metal touch layer 131 includes a first portion 1311 protruding from a first fitting surface 1322a of the base body 132. An included angle a between a first side surface 1311a of the first portion 1311 connected with the first fitting surface 1322a and the first fitting surface 1322a is less than 77°.
[0039] As described above, the touch layer 13 of the screen module 1 includes the base body 132 and the first metal touch layer 131 arranged on a side of the base body 132 opposite to the encapsulation layer 12. The first metal touch layer 131 includes the first portion 1311 protruding from the first fitting surface 1322a of the base body 132. The included angle a between the first side surface 1311a of the first portion 1311 connected with the first fitting surface 1322a and the first fitting surface 1322a is less than 77°, which reduces the stress concentration at the contact position between the first portion 1311 and the first fitting surface 1322a, and helps to improve the structural strength of the touch layer 13 and the encapsulation layer 12 located at the bottom of the touch layer 13, and avoid problems such as damage, encapsulation failure, and pressing black spots caused by stress concentration.
[0040] In some embodiments, the included angle a between the first side surface 1311a and the first fitting surface 1322a can be less than or equal to 67° and greater than or equal to 64°, so as to balance the processing technology and the requirement of reducing stress concentration. For example, the included angle a between the first side surface 1311a and the first fitting surface 1322a can be 66°, so as to reduce the stress concentration and improve the strength of the touch layer 13.
[0041] In the above embodiments, the first metal touch layer 131 can include a first metal layer, a second metal layer, and a third metal layer arranged in a stack, and the second metal layer is located between the first metal layer and the third metal layer. The sum of the thicknesses of the first metal layer and the third metal layer can be greater than or equal to 46 nm and less than or equal to 54 nm. The thickness of the second metal layer can be greater than or equal to 278 nm and less than or equal to 282 nm. By reducing the total thickness of the first metal layer and the third metal layer, the influence of stress on the first metal touch layer 131 can be reduced.
[0042] In some embodiments, the thickness of the first metal layer can be greater than or equal to 18 nm and less than or equal to 22 nm. The thickness of the third metal layer can be greater than or equal to 28 nm and less than or equal to 32 nm.
[0043] For example, the thickness of the first metal layer is greater than or equal to 18 nm and less than or equal to 22 nm, the thickness of the second metal layer is greater than or equal to 278 nm and less than or equal to 282 nm, and the thickness of the third metal layer is greater than or equal to 28 nm and less than or equal to 32 nm, so as to reduce the influence of stress on the first metal touch layer 131 by reducing the thickness of the first metal layer, the second metal layer and the third metal layer of the first metal touch layer 131, while avoiding the increase of impedance caused by the too thin first metal touch layer 131. For example, the thickness of the first metal layer can be 20 nm, the thickness of the second metal layer can be 280 nm, and the thickness of the third metal layer can be 30 nm.
[0044] It should be noted that the material of the first metal layer and the third metal layer can be Ti, and the material of the first metal layer and the third metal layer can also be Mu, and the material of the second metal layer can be Al.
[0045] In some embodiments, the base body 132 includes a first touch inorganic layer 1322 adjacent to the first metal touch layer 131, and the thickness of the first touch inorganic layer 1322 is greater than or equal to 348 nm and less than or equal to 352 nm, so as to improve the structural strength of the screen module 1 by increasing the thickness of the first touch inorganic layer 1322. The thickness of the first touch inorganic layer 1322 can be 350 nm.
[0046] Further, the base body 132 can further include a second metal touch layer 1321, the second metal touch layer 1321 is located on the side of the first touch inorganic layer 1322 opposite to the first metal touch layer 131, and the first metal touch layer 131 includes a second part 1312 connected with the first part 1311, the second part 1312 is connected with the second metal touch layer 1321 through the first touch inorganic layer 1322, so as to realize the touch function.
[0047] The first touch inorganic layer 1322 can include a first region 1322b, a third region 1322d bent relative to the first region 1322b, and a second region 1322c connecting adjacent third regions 1322d, the second region 1322c and the third region 1322d form an accommodation space, the second metal touch layer 1321 is arranged in the accommodation space, and a first matching surface 1322a is arranged on the side of the second region 1322c opposite to the accommodation space, so as to obtain a touch layer 13 with compact structure and capable of realizing touch function.
[0048] In the above embodiments, the base 132 can include a second touch inorganic layer 1323 adjacent to the second metal touch layer 1321, the thickness of the second touch inorganic layer 1323 being greater than or equal to 248 nm and less than or equal to 252 nm, so as to improve the structural strength of the screen module 1 by increasing the thickness of the second touch inorganic layer 1323. The thickness of the second touch inorganic layer 1323 can be 250 nm.
[0049] For example, the material of the first metal layer and the third metal layer is Ti, or the material of the first metal layer and the third metal layer is Mu, and the material of the second metal layer is Al.
[0050] When the angle between the first side surface 1311a and the first matching surface 1322a is any value less than or equal to 90° and greater than or equal to 77°, the thickness of the first metal layer of the first metal touch layer 131 is 50 nm, the thickness of the second metal layer is 280 nm, the thickness of the third metal layer is 50 nm, the thickness of the first touch inorganic layer 1322 is 300 nm, and the thickness of the second touch inorganic layer 1323 is 200 nm, experiments are carried out for the above schemes in the range of 10N-100N, as shown in the experimental results in Figure 2 The numerator can represent the number of passes or failures, and the denominator represents the total number of experiments. For example, 24 / 24 OK: 24 experiments have 24 experimental results, and 1 / 24 NG represents 24 experiments with 1 experimental structure.
[0051] For example, when the angle between the first side surface 1311a and the first matching surface 1322a is any value less than or equal to 67° and greater than or equal to 64°, the thickness of the first metal layer of the first metal touch layer 131 is 20 nm, the thickness of the second metal layer is 280 nm, the thickness of the third metal layer is 30 nm, the thickness of the first touch inorganic layer 1322 is 300 nm or 350 nm, and the thickness of the second touch inorganic layer 1323 is 200 nm or 250 nm, four parameter schemes are proposed as shown in Figure 3 Experiments are carried out for the four schemes in the range of 10N-100N, as shown in Figure 4The experimental results shown in the numerator can represent the number of passes or failures, and the denominator represents the total number of experiments. For example, 15 / 15 OK: 15 experiments have 15 experimental results, and 1 / 15 NG represents 15 experiments with 1 experimental structure. Therefore, when the angle a between the first side surface 1311a and the first matching surface 1322a is any value less than or equal to 67° and greater than or equal to 64°, the thickness of the first metal layer of the first metal touch layer 131 is 20 nm, the thickness of the second metal layer is 280 nm, the thickness of the third metal layer is 30 nm, the thickness of the first touch inorganic layer 1322 is 350 nm, and the thickness of the second touch inorganic layer 1323 is 250 nm, the anti-extrusion force of the screen module 1 can be increased from Figure 2 The 20N in the embodiment shown is increased to 80N.
[0052] In some embodiments, the screen module 1 further comprises a cover layer, and the touch layer 13, the packaging layer 12 and the display body 11 are sequentially assembled on one side of the cover layer. The cover layer comprises at least one curved surface structure. When the cover layer comprises a curved surface structure, the screen module 1 can be a curved screen. In order to solve the problem of the decrease of the anti-extrusion ability of the touch layer 13, the packaging layer 12 and the display body 11 caused by the increase of the thickness of the optical adhesive to adapt to the curved surface structure of the cover layer and other structural changes to adapt to the curved surface structure of the cover layer, the above-mentioned touch layer 13 applied to the curved screen can improve the anti-extrusion ability of the screen module 1.
[0053] For example, the cover layer comprises four corners, each corner is a curved surface structure, and the touch layer 13, the packaging layer 12 and the display body 11 are sequentially assembled on one side of the cover layer to form a four-curved screen.
[0054] In other embodiments, the screen module 1 can further comprise a cover layer and a protective layer. The protective layer is arranged on the side of the display body 11 opposite to the cover layer. The protective layer is provided with a relief gap matched with the fingerprint module to ensure the function of the fingerprint module. When the above-mentioned touch layer 13 is applied to the screen module 1, the anti-extrusion ability of the screen module 1 can be improved for the above-mentioned relief gap.
[0055] It should be noted that the above-mentioned fingerprint module can be an optical fingerprint module or an ultrasonic fingerprint module, and the present disclosure does not limit this. The packaging layer 12 can comprise two inorganic film layers 121 and an organic film layer 122 located between the two inorganic film layers 121, so as to package the above-mentioned display body 11 by film.
[0056] The present disclosure further provides an electronic device comprising the above-mentioned screen module 1.
[0057] The touch layer 13 of the screen module 1 comprises a base body 132 and a first metal touch layer 131 arranged on the side of the base body 132 opposite to the encapsulation layer 12, and the first metal touch layer 131 comprises a first part 1311 protruding from the first fitting surface 1322a of the base body 132. The included angle α between the first side surface 1311a of the first part 1311 connected with the first fitting surface 1322a and the first fitting surface 1322a is less than 77°, which reduces the stress concentration at the contact position of the first part 1311 and the first fitting surface 1322a, helps to improve the structural strength of the touch layer 13 and the encapsulation layer 12 located at the bottom of the touch layer 13, and avoids problems such as breakage and encapsulation failure caused by stress concentration.
[0058] It should be noted that the electronic device can be one of a mobile phone, a tablet computer, a computer, a vehicle-mounted device, a medical device, a wearable device, and a robot, and the present disclosure is not limited thereto.
[0059] The above is only the preferred embodiment of the present disclosure, and does not limit the present disclosure in any form. Although the present disclosure has been disclosed as the above preferred embodiment, it is not intended to limit the present disclosure. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present disclosure, and any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present disclosure are still within the scope of the technical solution of the present disclosure.
Claims
1. A screen module, characterized in that, The screen module comprises a display body, an encapsulation layer and a touch layer. The encapsulation layer covers the display body, and the touch layer is arranged on a side of the encapsulation layer away from the display body. The touch layer comprises a base body and a first metal touch layer arranged on a side of the base body away from the encapsulation layer; the first metal touch layer comprises a first part protruding from a first mating surface of the base body, and an included angle between a first side surface of the first part connected with the first mating surface and the first mating surface is less than 77°.
2. The screen module of claim 1, wherein, The first metal touch layer comprises a first metal layer, a second metal layer and a third metal layer arranged in layers; the second metal layer is arranged between the first metal layer and the third metal layer. The sum of thicknesses of the first metal layer and the third metal layer is greater than or equal to 46 nm and less than or equal to 54 nm; and the thickness of the second metal layer is greater than or equal to 278 nm and less than or equal to 282 nm.
3. The screen module of claim 2, wherein, The thickness of the first metal layer is greater than or equal to 18 nm and less than or equal to 22 nm.
4. The screen module of claim 2, wherein, The thickness of the third metal layer is greater than or equal to 28 nm and less than or equal to 32 nm.
5. The screen module of claim 1, wherein, The base body comprises a first touch inorganic layer adjacent to the first metal touch layer; the thickness of the first touch inorganic layer is greater than or equal to 348 nm and less than or equal to 352 nm.
6. The screen module of claim 1, wherein, The base body comprises a second metal touch layer and a first touch inorganic layer adjacent to the first metal touch layer; the second metal touch layer is arranged on a side of the first touch inorganic layer away from the first metal touch layer; the first metal touch layer comprises a second part connected with the first part, and the second part is connected with the second metal touch layer through the first touch inorganic layer.
7. The screen module of claim 6, wherein, The first touch inorganic layer comprises a first region, a third region bent relative to the first region and a second region connecting adjacent third regions; the second region and the third region enclose a receiving space, the second metal touch layer is arranged in the receiving space, and the first mating surface is arranged on a side of the second region away from the receiving space.
8. The screen module of claim 6, wherein, The base body comprises a second touch inorganic layer adjacent to the second metal touch layer; the thickness of the second touch inorganic layer is greater than or equal to 248 nm and less than or equal to 252 nm. 9.The screen module of claim 1, wherein, The included angle between the first side surface and the first mating surface is less than or equal to 67° and greater than or equal to 64°.
10. The screen module of claim 1, wherein, The screen module further comprises a cover layer, the touch layer, the encapsulation layer and the display body are sequentially arranged on a side of the cover layer; and the cover layer comprises at least one curved surface structure.
11. The screen module of claim 10, wherein, The cover layer comprises four corners, each of the corners is a curved surface structure; the touch layer, the encapsulation layer and the display body are sequentially arranged on a side of the cover layer to form a four-curved-surface screen.
12. The screen module of claim 1, wherein, The screen module further comprises a cover layer and a protective layer; the protective layer is arranged on a side of the display body away from the cover layer; and the protective layer is provided with a relief gap matched with a fingerprint module.
13. An electronic device, comprising: The screen module comprises the screen module according to any one of claims 1-12.