CN-122018053-A - Laminated structure and electronic device

Abstract

The application provides a laminated structure and an electronic device, wherein the laminated structure can be an optical laminated layer, and the laminated structure is arranged on the light emitting side of a display module. The laminated structure comprises an anti-fingerprint layer, an anti-reflection layer, a connecting layer, a hardening layer and a base film which are laminated from top to bottom, wherein the anti-reflection layer comprises a second low refraction layer, a second high refraction layer, a first low refraction layer and a first high refraction layer which are laminated from top to bottom, the first high refraction layer is connected with the connecting layer, the first low refraction layer and the second low refraction layer are made of the same material, the first high refraction layer is made of a low modulus material, and the second high refraction layer is made of a high modulus material. The first high refraction layer close to the hardening layer is made of a low-modulus material, the bending resistance is good, the second high refraction layer is arranged close to the surface, and the wear resistance is good. In this way, the abrasion resistance and the bending resistance of the laminated structure can be simultaneously achieved.

Inventors

• YIN YONG
• SONG WEIJIE
• FANG JIANPING
• WANG JIE
• LI JIA
• LI XIAOLONG

Assignees

• 华为技术有限公司
• 中国科学院宁波材料技术与工程研究所

Dates

Publication Date

20260512

Application Date

20241112

Claims (17)

1. 1. The laminated structure is characterized by being arranged on a display module and comprises an anti-fingerprint layer, an anti-reflection layer, a connecting layer, a hardening layer and a base film which are arranged in a laminated manner; The anti-reflection layer comprises a second low refraction layer, a second high refraction layer, a first low refraction layer and a first high refraction layer which are stacked, wherein the first high refraction layer is connected with the connecting layer; The first low refraction layer and the second low refraction layer are made of the same material, the first high refraction layer is made of a low-modulus material, and the second high refraction layer is made of a high-modulus material.
2. 2. The laminate structure of claim 1 wherein the anti-reflective layer further comprises a third high refractive layer and a third low refractive layer disposed in a stack, the third high refractive layer being coupled to the first low refractive layer and the third low refractive layer being coupled to the second high refractive layer.
3. 3. The laminate structure of claim 2 wherein the third high refractive layer is made of the high modulus material.
4. 4. The laminate structure of claim 2 wherein the third high refractive layer is made of the low modulus material.
5. 5. The laminate structure of claim 2 wherein the third high refractive layer is made of a composite material having a modulus higher than the low modulus material and a modulus lower than the high modulus material.
6. 6. The laminate structure of claim 5 wherein the composite material is formed from a composite of the high modulus material and the low modulus material after mixing.
7. 7. The laminate structure of claim 5 wherein the composite material comprises a first sub-portion and a second sub-portion disposed in a stack, the first sub-portion and the second sub-portion being joined, and the first sub-portion being joined to the first low refractive layer, the second sub-portion being joined to the third low refractive layer, the first sub-portion being formed of the low modulus material and the second sub-portion being formed of the high modulus material.
8. 8. The laminate structure of claim 7 wherein the composite material further comprises a third sub-portion disposed between the first sub-portion and the second sub-portion, the third sub-portion being formed from a composite of the high modulus material and the low modulus material.
9. 9. The laminate structure of any one of claims 1-8 wherein the low modulus material comprises at least one of niobium trioxide Nb2O3, titanium oxide TiO2, tantalum pentoxide Ta2O5, aluminum oxide Al2O3, and the high modulus material comprises at least one of silicon nitride Si3N4, silicon oxynitride SiON, silicon aluminum oxynitride SiAlON compound.
10. 10. The laminate structure of any one of claims 1-9 wherein the antireflective layer is formed by a magnetron sputter coating process.
11. 11. The laminate structure of any one of claims 1-10 wherein the first high refractive layer has a thickness in the range of 5-150nm and the first low refractive layer has a thickness in the range of 10-200nm.
12. 12. The laminate structure of any one of claims 1-11 wherein the first low refractive layer comprises silicon oxide SiO 2 .
13. 13. The laminate structure of any one of claims 1-12, wherein the first low refractive layer is doped with at least one of titanium Ti, zirconium Zr, copper Cu, and aluminum Al, and the first high refractive layer is doped with at least one of yttrium oxide Y2O3, aluminum oxide Al2O3, cerium oxide CeO2, calcium oxide CaO, and magnesium oxide MgO.
14. 14. The laminate structure of any one of claims 1-13, wherein the hardened layers comprise a first hardened layer and a second hardened layer disposed in a stack, the first hardened layer being coupled to the coupling layer, the first hardened layer being doped with reinforcing particles.
15. 15. The laminate structure of any one of claims 1-13 wherein the stiffening layer is doped with reinforcing particles, the volume fraction of the reinforcing particles increasing progressively in a direction towards the tie layer.
16. 16. The laminate structure of claim 14 or 15 wherein the reinforcing particles are at least one of silica SiO2, zirconia ZrO2, alumina Al2O3, titania TiO2, and silicon nitride SiN.
17. 17. An electronic device comprising a display module, and a laminate structure according to any one of claims 1-16, the laminate structure being disposed on a light exit side of the display module.

Description

Laminated structure and electronic device Technical Field The present application relates to the field of display technologies, and in particular, to a stacked structure and an electronic device. Background Along with the continuous development of display technology, a folding display terminal gradually becomes a development trend of future mobile electronic products. Under the unfolding state, the folding display terminal can obtain a larger display area, and the film watching effect is improved. The folding display terminal can obtain smaller volume under the folding state, and is convenient for users to carry. At present, the mobile phone protection film with the folding screen comprises a base film, a hardening layer, an antireflection layer, an anti-fingerprint layer and the like which are arranged in a laminated mode, wherein the antireflection layer comprises a plurality of layers of high refractive layers and a plurality of layers of low refractive layers which are arranged in a laminated mode, the high refractive layers and the low refractive layers are alternately arranged, the moduli of the plurality of layers of high refractive layers are the same, and abrasion resistance and bending resistance are difficult to be simultaneously considered. Disclosure of Invention The application provides a laminated structure and electronic equipment, which solve the problem that an anti-reflection layer is difficult to simultaneously realize wear resistance and bending resistance. In order to achieve the above purpose, the application adopts the following technical scheme: According to the first aspect of the embodiment of the application, a laminated structure is provided, the laminated structure is arranged on a display module, the laminated structure comprises an anti-fingerprint layer, an anti-reflection layer, a connecting layer, a hardening layer and a base film which are arranged in a laminated mode, the anti-reflection layer comprises a second low refraction layer, a second high refraction layer, a first low refraction layer and a first high refraction layer which are arranged in a laminated mode, the first high refraction layer is connected with the connecting layer, the first low refraction layer and the second low refraction layer are made of the same material, the first high refraction layer is made of a low-modulus material, and the second high refraction layer is made of a high-modulus material. According to the laminated structure provided by the embodiment of the application, the first high-refraction layer close to the hardening layer is made of the low-modulus material, the bending resistance is good, the second high-refraction layer is arranged close to the surface, and the high-modulus material is good in wear resistance, so that the laminated structure can be used for supporting the second low-refraction layer, and the wear resistance of the anti-reflection layer is improved. In this way, the abrasion resistance and the bending resistance of the laminated structure can be simultaneously achieved. In an alternative implementation, the anti-reflection layer further comprises a third high refraction layer and a third low refraction layer which are stacked, wherein the third high refraction layer is connected with the first low refraction layer, and the third low refraction layer is connected with the second high refraction layer. Therefore, transition between the high-modulus material and the low-modulus material can be realized by arranging the third high-refraction layer and the third low-refraction layer, so that modulus change is more gentle, bonding force between all laminated layers can be improved, and layering caused by overlarge modulus change is reduced. In an alternative implementation, the third high refractive layer is made of the high modulus material. Thus, the high-modulus high-refraction layer in the anti-reflection layer is more, and the wear resistance of the anti-reflection layer can be further improved. In an alternative implementation, the third high refractive layer is made of the low modulus material. Thus, the antireflection layer has more high refractive layers with low modulus, and the bending resistance of the antireflection layer can be further improved. In an alternative implementation, the third high refractive layer is made of a composite material having a modulus higher than the low modulus material and a modulus lower than the high modulus material. Therefore, by arranging the third high refraction layer with intermediate modulus between the second high refraction layer with high modulus and the first high refraction layer with low modulus, uniform transition from low modulus to intermediate modulus to high modulus can be realized, so that modulus change is more gentle, bonding force between laminated layers can be improved, and layering possibility caused by overlarge modulus change is reduced. In an alternative implementation, the composite material is form