CN110377185B - Method for attaching curved cover plate and display panel, display screen and electronic equipment - Google Patents
Method for attaching curved cover plate and display panel, display screen and electronic equipment Download PDFInfo
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- CN110377185B CN110377185B CN201910729923.3A CN201910729923A CN110377185B CN 110377185 B CN110377185 B CN 110377185B CN 201910729923 A CN201910729923 A CN 201910729923A CN 110377185 B CN110377185 B CN 110377185B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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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
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- Physics & Mathematics (AREA)
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Abstract
The invention relates to a method for attaching a curved cover plate to a display panel, a display screen and electronic equipment. A method for attaching a curved surface cover plate to a display panel comprises the following steps: fixedly connecting the edge of the curved surface cover plate with the edge of the display panel through frame glue, so that a cavity is formed among the curved surface cover plate, the display panel and the frame glue; an injection hole and an exhaust hole which are communicated with the cavity are formed in the frame adhesive; and injecting a liquid medium into the cavity through the injection hole, wherein the viscosity of the liquid medium is less than 100mPa & s, and the light transmittance is not less than 90%. The display screen prepared by the attaching method has a good optical effect.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a method for attaching a curved cover plate to a display panel, a display screen and electronic equipment.
Background
Compared with the traditional flat display screen, the display screen with the curved surface structure can bring better visual experience to users. However, the existing full-plane laminating process cannot be applied to laminating of curved cover plate glass and a display panel, and the popularization and application of a display screen with a curved structure are limited.
Disclosure of Invention
Therefore, it is necessary to provide a method for attaching a curved cover plate to a display panel, a display screen, and an electronic device, in order to solve the problem that the existing all-plane attaching process cannot be applied to attaching a curved cover plate glass to a display panel.
A method for attaching a curved surface cover plate to a display panel comprises the following steps:
fixedly connecting the edge of the curved surface cover plate with the edge of the display panel through frame glue, so that a cavity is formed among the curved surface cover plate, the display panel and the frame glue;
an injection hole and an exhaust hole which are communicated with the cavity are formed in the frame adhesive;
and injecting a liquid medium into the cavity through the injection hole, wherein the viscosity of the liquid medium is less than 100mPa & s, and the light transmittance is not less than 90%.
According to the method for attaching the curved surface cover plate to the display panel, the frame glue is adopted to seal the edge of the curved surface cover plate and the display panel, the liquid medium with high fluidity and high light transmittance is filled between the curved surface cover plate and the display panel, air is prevented from being mixed between the curved surface cover plate and the display panel, and the display screen prepared by the attaching method has a good optical effect. Moreover, the liquid medium does not need to be cured, so that the laminating process is greatly simplified. In addition, the liquid medium can also absorb impact force and protect the curved cover plate.
The refractive index of the liquid medium is greater than or equal to 1.4 and less than or equal to 1.6.
In one embodiment, the peeling force of the liquid medium from the curved cover plate or the display panel is less than 5gf/25 mm.
In one embodiment, the liquid medium is in a liquid state at a temperature ranging from-40 ℃ to 90 ℃.
In one embodiment, the step of fixedly connecting the edge of the curved cover plate and the edge of the display panel by the sealant includes:
and arranging the frame glue at the edge of the curved cover plate and the edge of the display panel in an annular shape.
In one embodiment, the step of forming an injection hole and an exhaust hole on the frame adhesive, the injection hole and the exhaust hole being communicated with the cavity, includes:
and an injection hole and an exhaust hole are respectively formed in one side edge of the frame glue.
In one embodiment, the step of injecting the liquid medium into the cavity through the injection hole further includes:
and plugging the injection hole and the exhaust hole.
In one embodiment, the blocking the injection hole and the exhaust hole comprises:
and sealing the injection hole and the exhaust hole by adopting a sealant.
A display screen comprises a curved surface cover plate, a display panel, frame glue and a liquid medium, wherein the edge of the curved surface cover plate is fixedly connected with the edge of the display panel through the frame glue, a cavity is formed among the curved surface cover plate, the display panel and the frame glue, the liquid medium is filled in the cavity, the viscosity of the liquid medium is less than 100mPa & s, and the light transmittance is not less than 90%.
An electronic device comprises the display screen.
Drawings
FIG. 1 is a schematic diagram of a display screen according to an embodiment;
FIG. 2 is a flowchart illustrating a method for attaching a curved cover plate to a display panel according to an embodiment;
fig. 3 is a cross-sectional view of the display screen shown in fig. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a display screen 100, which can be applied to electronic devices, such as smart phones, tablet computers, notebook computers, portable phones, digital cameras, e-book readers, wearable devices, and vehicle-mounted display devices.
The display screen 100 includes a curved cover plate 10, a display panel 20, a sealant 30 and a liquid medium 40. The edge of the curved cover plate 10 and the edge of the display panel 20 are fixedly connected through the frame glue 30, a cavity is formed among the curved cover plate 10, the display panel 20 and the frame glue 30, a liquid medium 40 is filled in the cavity, the viscosity of the liquid medium 40 is less than 100mPa · s, and the light transmittance is not less than 90%.
The frame glue 30 is used for sealing the curved cover plate 10 and the display panel 20, and the liquid medium 40 with high fluidity and high light transmittance is filled between the curved cover plate 10 and the display panel 20, so that air is prevented from being mixed between the curved cover plate 10 and the display panel 20, and the display screen 100 has a good optical effect. Moreover, the liquid medium 40 does not need to be cured, thereby greatly simplifying the attaching process. In addition, the liquid medium 40 can absorb the impact force and protect the curved cover plate 10. Meanwhile, the liquid medium 40 can wet the curved cover plate 10 and the display panel 20, and generates an adsorption effect on the curved cover plate 10 and the display panel 20, so that the curved cover plate 10 and the display panel 20 are not easily separated.
The viscosity of the liquid medium 40 is less than 100mPa · s, that is, the fluidity of the liquid medium 40 is high, so that the liquid medium 40 can automatically fill the whole cavity, and the air between the curved cover plate 10 and the display panel 20 is exhausted.
The physical and chemical properties of the liquid medium 40 are stable within the operating temperature range of the display panel 100, and the liquid medium 40 may be non-crosslinked silicone polymer, acrylic acid, mineral oil, or organic phosphate.
The curved cover plate 10 is used to isolate the touch electrode layer 11 and the display panel 20 from the outside, and plays a role in protection and dust prevention. The curved cover plate 10 may be made of tempered glass, acrylic, sapphire or polycarbonate.
It can be understood that, the curved cover plate 10 is provided with the touch electrode layer 11, and a user touches the outer end surface of the curved cover plate 10, which may trigger the touch electrode layer 11 to generate a touch signal, so as to display the content indicated by the touch signal through the display panel 20.
Referring to fig. 2 and 3, a method for attaching a curved cover plate 10 to a display panel 20 includes the following steps:
s110: fixedly connecting the edge of the curved cover plate 10 with the edge of the display panel 20 through the frame glue 30, so that a cavity is formed among the curved cover plate 10, the display panel 20 and the frame glue 30;
s120: an injection hole 31 and an exhaust hole 32 communicated with the cavity are formed in the frame glue 30;
s130: and injecting a liquid medium 40 into the cavity through the injection hole 31, wherein the viscosity of the liquid medium 40 is less than 100mPa & s, and the light transmittance is not less than 90%.
According to the method for bonding the curved cover plate 10 and the display panel 20, the frame glue 30 is used for sealing the curved cover plate 10 and the display panel 20, the liquid medium 40 with high fluidity and high light transmittance is filled between the curved cover plate 10 and the display panel 20, air is prevented from being mixed between the curved cover plate 10 and the display panel 20, and the display screen 100 prepared by the bonding method has a good optical effect. Moreover, the liquid medium 40 does not need to be cured, thereby greatly simplifying the attaching process. In addition, the liquid medium 40 can absorb the impact force and protect the curved cover plate 10.
The liquid medium 40 has a refractive index of greater than or equal to 1.4 and less than or equal to 1.6.
The refractive index of the liquid medium 40 is greater than or equal to 1.4, so that the refractive index of the liquid medium 40 is close to that of the curved cover plate 10, and light is prevented from being refracted between the curved cover plate 10 and the liquid medium 40. The molecular structure arrangement and crystallinity inside the liquid medium 40 cause a part of incident light to be reflected, resulting in a loss of transmitted light, and the light transmittance is lowered, and the degree of reflection is represented by reflectance R (n-1) 2 /(n+1) 2 X 100%, where n is the refractive index of the liquid medium 40, the greater the refractive index, the greater the reflectivity, and the refractive index of the liquid medium 40 is made less than or equal to 1.6 to ensure a high light transmittance of the liquid medium 40.
The peeling force of the liquid medium 40 from the curved cover plate 10 or the display panel 20 is less than 5gf/25mm, which is greatly different from OCA (Optical Clear Adhesive) or OCR (ultraviolet hardening Resin) which is commonly used in the art.
The liquid medium 40 is in a liquid state at a temperature ranging from-40 ℃ to 90 ℃. It is ensured that the liquid medium 40 is always in a flowing state in the operating temperature range of the display screen 100.
The step of fixedly connecting the edge of the curved cover plate 10 and the edge of the display panel 20 by the sealant 30 includes:
the sealant 30 is disposed annularly at the edge of the curved cover plate 10 and the edge of the display panel 20. The corresponding regions of the curved cover plate 10 and the display panel 20 are enclosed by the sealant 30 to form a cavity for accommodating the liquid medium 40.
The step of forming the injection hole 31 and the exhaust hole 32 communicated with the cavity on the frame adhesive 30 includes: an injection hole 31 and an exhaust hole 32 are respectively formed in one side 33 of the sealant 30.
The injection hole 31 and the exhaust hole 32 are disposed on the same side 33 of the sealant 30. When the liquid medium 40 is injected, the curved cover plate 10 and the display panel 20 are first rotated by a certain angle so that the injection holes 31 and the exhaust holes 32 face upward, thereby facilitating the injection of the liquid medium 40. The air vent 32 is communicated with the outside atmosphere, so that the air in the cavity is timely discharged along with the injection of the liquid medium 40, and bubbles in the liquid medium 40 are avoided.
The step of injecting the liquid medium 40 into the cavity through the injection hole 31 further includes: s140: the injection hole 31 and the exhaust hole 32 are closed. After the space between the curved cover plate 10 and the display panel 20 is filled with the liquid medium 40, the injection hole 31 and the exhaust hole 32 need to be sealed to prevent the liquid medium 40 from leaking.
The step of sealing the injection hole 31 and the exhaust hole 32 includes: the injection hole 31 and the exhaust hole 32 are sealed with a sealant. Specifically, the sealant may be a silicone resin.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. The method for laminating the curved surface cover plate and the display panel is characterized by comprising the following steps of:
fixedly connecting the edge of the curved surface cover plate with the edge of the display panel through frame glue, so that a cavity is formed among the curved surface cover plate, the display panel and the frame glue;
an injection hole and an exhaust hole which are communicated with the cavity are formed in the frame adhesive;
injecting a liquid medium into the cavity through the injection hole; wherein the viscosity of the liquid medium is less than 100mPa & s, the light transmittance is not less than 90%, and the liquid medium is in a liquid state at the temperature of-40-90 ℃;
plugging the injection hole and the exhaust hole so as to limit the liquid medium in the cavity;
wherein the peeling force of the liquid medium and the curved cover plate or the display panel is less than 5gf/25 mm;
the liquid medium can wet the curved cover plate and the display panel to generate adsorption on the curved cover plate and the display panel.
2. The laminating method according to claim 1, wherein the liquid medium has a refractive index of 1.4 or more and 1.6 or less.
3. The laminating method of claim 1, wherein the liquid medium comprises one of a non-crosslinked silicone polymer, acrylic acid, mineral oil, or an organic phosphate.
4. The attaching method according to claim 1, wherein the step of fixedly connecting the edge of the curved cover plate and the edge of the display panel by using the sealant comprises:
and arranging the frame glue at the edge of the curved cover plate and the edge of the display panel in an annular manner.
5. The attaching method according to claim 1, wherein the step of forming an injection hole and an exhaust hole communicating with the cavity on the frame adhesive includes:
and an injection hole and an exhaust hole are respectively formed in one side edge of the frame glue.
6. The attaching method according to claim 1, wherein the step of plugging the injection hole and the exhaust hole includes:
and sealing the injection hole and the exhaust hole by using a sealing adhesive.
7. The method of applying according to claim 6, wherein the sealant comprises a silicone resin.
8. The attaching method according to claim 1, wherein the curved cover plate is made of one of tempered glass, acrylic, sapphire and polycarbonate.
9. A display screen is characterized by comprising a curved surface cover plate, a display panel, frame glue and a liquid medium, wherein the edge of the curved surface cover plate is fixedly connected with the edge of the display panel through the frame glue;
wherein the viscosity of the liquid medium is less than 100mPa s, the light transmittance is not less than 90%, and the liquid medium is in a liquid state at the temperature of-40-90 ℃;
the peeling force of the liquid medium and the curved cover plate or the display panel is less than 5gf/25 mm;
the liquid medium can wet the curved cover plate and the display panel to generate adsorption on the curved cover plate and the display panel.
10. An electronic device characterized by comprising the display screen of claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910729923.3A CN110377185B (en) | 2019-08-08 | 2019-08-08 | Method for attaching curved cover plate and display panel, display screen and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910729923.3A CN110377185B (en) | 2019-08-08 | 2019-08-08 | Method for attaching curved cover plate and display panel, display screen and electronic equipment |
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| CN110377185A CN110377185A (en) | 2019-10-25 |
| CN110377185B true CN110377185B (en) | 2022-09-20 |
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| CN111176480A (en) * | 2019-12-06 | 2020-05-19 | 深圳市鸿合创新信息技术有限责任公司 | Touch display screen, preparation method thereof and touch device |
| CN110930872A (en) * | 2019-12-25 | 2020-03-27 | 业成光电(无锡)有限公司 | Curved surface optical module |
| CN111124181B (en) * | 2019-12-25 | 2022-11-11 | 业成科技（成都）有限公司 | Display device and touch display device |
| CN111061095A (en) * | 2019-12-30 | 2020-04-24 | 业成光电(无锡)有限公司 | Curved surface display module |
| CN111488074A (en) * | 2020-03-24 | 2020-08-04 | 精电(河源)显示技术有限公司 | Panel attaching method of curved screen and curved screen |
| CN111799390A (en) * | 2020-06-02 | 2020-10-20 | 深圳市华星光电半导体显示技术有限公司 | Display device and method for attaching display panel and glass cover plate |
| CN113936565A (en) * | 2020-06-29 | 2022-01-14 | 云谷（固安）科技有限公司 | Manufacturing method of display module, display module and display device |
| CN113140167A (en) * | 2021-03-26 | 2021-07-20 | 精电(河源)显示技术有限公司 | Curved surface optical module manufacturing method, curved surface optical module and curved surface display screen |
| CN114125099B (en) * | 2021-09-15 | 2023-01-10 | 荣耀终端有限公司 | Terminal device |
| CN114035709B (en) * | 2021-11-24 | 2023-07-04 | 深圳市华星光电半导体显示技术有限公司 | Display device |
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