CN111640370A - Bonding structure, display device, and bonding method for display device - Google Patents
Bonding structure, display device, and bonding method for display device Download PDFInfo
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- CN111640370A CN111640370A CN202010605135.6A CN202010605135A CN111640370A CN 111640370 A CN111640370 A CN 111640370A CN 202010605135 A CN202010605135 A CN 202010605135A CN 111640370 A CN111640370 A CN 111640370A
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- bonding
- adhesive layer
- light source
- guide plate
- display device
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
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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
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The application provides a bonding structure, display device and display device's bonding method, this bonding structure is used for the bonding between leading light source and the touch-sensitive screen, includes first glue film, protective layer and the second glue film that sets gradually from leading light source to the touch-sensitive screen, wherein: the first adhesive layer is used for bonding with a front light source; the second adhesive layer is used for bonding with the touch screen; the protective layer is used for isolating the second adhesive layer from the front light source so as to protect the mesh point structure of the light guide plate of the front light source. By applying the method and the device, the mesh point structure of the light guide plate can be prevented from being damaged when the front light source is bonded with the touch screen, so that the high brightness, the high contrast and the like of the display device are ensured.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to an adhesion structure, a display device and an adhesion method of the display device.
Background
The reflective display device has no backlight source, and can realize the display effect by utilizing the reflection of the ambient light. However, when the ambient light is weak, the reflective display device often cannot meet the requirement of human eyes for viewing, and needs to be illuminated by a Front Light Unit (FLU). The front light source generally includes a light source, a Light Guide Plate (LGP), and the like, wherein the LGP works as follows: the light source enters the LGP from the light-in side end face of the LGP, total reflection continuously occurs at non-mesh points inside the LGP, the interface angle changes at mesh points (usually bumps), and the total reflection is destroyed, so that light emission is realized.
Currently, OCA (optical Clear Adhesive, special Adhesive for gluing transparent optical elements) is generally used to bond the semi-finished product after the FLU and the display Panel (Panel) are bonded to the Touch Panel (TP). However, because the OCA is a semi-solid glue, it is relatively easy to enter the inside of the dots of the LGP, causing dot failure (unable to emit light) or only being able to emit light at a very large angle, which in turn leads to significant reduction in display brightness and contrast.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides an adhesive structure, a display device and an adhesive method of the display device, which can prevent the mesh point structure of a light guide plate from being damaged when a front light source is adhered to a touch screen, so that the high brightness, the high contrast and the like of the display device are ensured.
In order to achieve the object of the present invention, a first aspect provides an adhesive structure for adhering a front light source and a touch screen, including a first adhesive layer, a protective layer, and a second adhesive layer sequentially disposed from the front light source to the touch screen, wherein:
the first adhesive layer is used for bonding with the front light source;
the second adhesive layer is used for being bonded with the touch screen;
the protective layer is used for isolating the second adhesive layer from the front light source so as to protect the mesh point structure of the light guide plate of the front light source.
Optionally, the thickness of the first adhesive layer is set to reduce the filling amount of the first adhesive layer in the gap formed by the dot structure of the light guide plate.
Optionally, the thickness of the first adhesive layer ranges from 5 μm to 50 μm.
Optionally, the first glue layer includes silica gel, and a refractive index of the silica gel is less than or equal to 1.45.
Optionally, the protective layer comprises a transparent organic material layer.
Optionally, the organic material layer comprises polyethylene terephthalate.
In order to achieve the object of the present invention, a second aspect provides a display device, which includes a display panel, a front light source, a touch screen, and a first bonding structure and a second bonding structure, where the first bonding structure is used to bond the display panel and the front light source, the second bonding structure is used to bond the front light source and the touch screen, and the second bonding structure is the bonding structure provided in the first aspect.
Optionally, the dot structure of the light guide plate of the front light source includes a plurality of grooves formed on the light exit surface of the light guide plate.
Optionally, the diameter of the groove ranges from 10 μm to 40 μm, and the depth of the groove ranges from 3 μm to 10 μm.
In order to achieve the object of the present invention, a third aspect provides a bonding method of a display device, applying the bonding structure provided by the first aspect of the claims, and comprising the steps of:
bonding the first adhesive layer with the front light source;
and bonding the second adhesive layer with the touch screen.
The invention has the following beneficial effects:
the bonding structure provided by the invention comprises a first adhesive layer, a second adhesive layer and a protective layer arranged between the two adhesive layers, wherein the protective layer can isolate the second adhesive layer from a front light source and prevent the second adhesive layer from contacting with a light guide plate of the front light source, so that a dot structure of the light guide plate of the front light source is protected. And owing to added the protective layer, can set up thinner first glue film, then even first glue film has mobility, its content is less, and most first glue film all adheres to on protective layer and leading light source, make the glue that flows to light guide plate site structure very limited, can prevent that bonding structure from causing the mesh point structure of light guide plate when carrying out the bonding of leading light source and touch-sensitive screen to damage, avoid because of the defect such as unable light-emitting of big angle light-emitting even that the light guide plate mesh point became invalid and cause, thereby high luminance and high contrast etc. of display device have been guaranteed. And compare in the frame and paste the touch-sensitive screen, adopt this adhesive structure to carry out the display device overall structure that bonds more firm, be difficult for appearing the interlayer separation, and the mesh point face of leading light source can realize laminating entirely, and the protective effect is better, can effectively prevent to get into the inside demonstration that causes of product because of steam, dust etc. and badly wait.
Drawings
Fig. 1 is a schematic diagram of a bonding state between a front light source and a touch screen, which is bonded by using a bonding structure provided in an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a bonding process between a front light source and a touch screen by using the bonding structure provided in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a manufacturing process of a light guide plate according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems in specific embodiments with reference to the accompanying drawings.
The principle that the light guide plate of the front light source realizes light emitting is as follows: light emitted from the light source enters the light guide plate from the light inlet side end face of the light guide plate, total reflection is continuously generated at non-mesh points in the light guide plate, and the total reflection is damaged at the mesh points due to the change of the interface angle, so that light is emitted. When the OCA glue is used for bonding the preposed light source and the touch screen, the preposed light source and the touch screen are attached to extrude the OCA glue, the semi-solid OCA glue easily enters the interior of the mesh points, the mesh point structure is damaged, even the mesh points fail, so that certain mesh points of the light guide plate can only emit light at a large angle, even the light does not emit light, and the defects of display brightness, contrast ratio, obvious reduction and the like of the display device are caused.
In order to ensure that the light emitting function of the mesh points of the light guide plate is effective, most of the existing methods adopt a frame pasting mode to bond the touch screen, namely, the adhesive layer is only arranged on the periphery of the front light source and the periphery of the touch screen, and the bonding is only carried out on the periphery. Therefore, the adhesive layer is arranged on the periphery, the air gap is formed between the front light source in the middle area and the touch screen, the reflection with the air interface twice is increased in the light transmission process, the attenuation of light energy is caused, and the display brightness and the contrast of the display device can be obviously reduced under the condition that the front light source is closed.
In order to ensure the light emitting effect of the mesh points of the light guide plate, and avoid the above-mentioned light energy attenuation, and avoid the display device from obviously decreasing the display brightness and contrast under the condition that the front light source is turned off, the embodiment provides an adhesive structure for adhering the front light source and the touch screen. Referring to fig. 1 and fig. 2, which are schematic diagrams of a bonding state of a front light source and a touch screen bonded by using the bonding structure 10 provided in the present application and a bonding process thereof, respectively, the bonding structure 10 may include a first adhesive layer 11, a protective layer 12, and a second adhesive layer 13 sequentially disposed from the front light source 20 to the touch screen 30, wherein: the first adhesive layer 11 is used for bonding with the front light source 20; the second adhesive layer 13 is used for bonding with the touch screen 30; the protective layer 12 is used to isolate the second adhesive layer 13 from the front light source 20, so as to protect the dot structure 211 of the light guide plate of the front light source 20.
The first adhesive layer 11 and the second adhesive layer 13 may be special adhesives for gluing transparent optical elements (such as lenses), such as conventional acrylic based OCA adhesives, which are usually semi-solid adhesives, have certain flowability, and the flowability is increased when heating. The front light source 20 may be any front light source 20 having a light guide plate, and the embodiment does not specifically limit the specific structure and size thereof, nor does the embodiment limit the specific structure and size of the touch screen 30, as long as the front light source 20 and the touch screen 30 can be bonded together by the bonding structure 10.
The bonding structure 10 provided by this embodiment includes the first adhesive layer 11, the second adhesive layer 13 and the protective layer 12 disposed between the two adhesive layers, and the protective layer 12 can isolate the second adhesive layer 13 from the front light source 20, so as to prevent the second adhesive layer 13 from contacting the light guide plate of the front light source 20, thereby protecting the dot structure 211 of the light guide plate of the front light source 20. And because the protective layer 12 is added, the thinner first adhesive layer 11 can be arranged, even if the first adhesive layer 11 has fluidity, the content of the first adhesive layer is less, and most of the first adhesive layer 11 is attached to the protective layer 12 and the front light source 20, so that the adhesive flowing to the dot structure 211 of the light guide plate is very limited, the dot structure 211 of the light guide plate can be prevented from being damaged when the front light source 20 is bonded with the touch screen 30 by the bonding structure 10, and the defects of large-angle light emitting and even light emitting failure and the like caused by the dot failure of the light guide plate are avoided, thereby ensuring the high brightness, high contrast and the like of the display device. And compare in frame subsides touch-sensitive screen 30, the display device overall structure that adopts this adhesive structure 10 to bond is more firm, is difficult for appearing the interlayer separation, and the mesh point face of leading light source 20 can realize laminating entirely, and the protective effect is better, can effectively prevent to get into the inside bad demonstration etc. that causes of product because of steam, dust etc..
In practical applications, in order to make the first adhesive layer 11 not to damage the dot structure 211 of the light guide plate as much as possible, the first adhesive layer 11 may use an ultra-thin OCA adhesive with high hardness, low refractive index, and high air-bubble-discharging property. The ultra-thin OCA glue is adopted, so that the amount of the OCA glue can be reduced as much as possible on the premise of meeting the bonding performance, and the possibility that the first glue layer 11 damages the mesh point structure 211 of the light guide plate is reduced as much as possible. The high-hardness OCA glue has small liquidity and is not beneficial to entering the mesh points of the light guide plate, and the possibility that the mesh point structure 211 of the light guide plate is damaged by the first glue layer 11 can be effectively reduced. According to the light emitting principle shown in fig. 1, the low-refractive-index OCA adhesive is adopted, so that the light emitting angle (the included angle between the light and the direction perpendicular to the light emitting surface) of the light is small, and the improvement of the display brightness and the contrast is facilitated. The adoption of the high-bubble-discharging-performance OCA glue is beneficial to discharging bubbles between the first glue layer 11 and the front light source 20, and can avoid contrast, display brightness reduction and the like caused by multiple refractions of light rays at the bubbles.
In a specific embodiment of the present invention, based on the application principle of the first adhesive layer 11, the thickness of the first adhesive layer 11 may be set to reduce the filling amount of the first adhesive layer 11 in the gap formed by the dot structure 211 of the light guide plate, that is, the first adhesive layer 11 may have a specific thickness (e.g., the aforementioned ultra-thin thickness) to reduce the amount of the first adhesive layer 11, so as to reduce the filling amount of the first adhesive layer 11 entering the gap, thereby reducing the possibility that the dot structure 211 of the light guide plate is damaged by the first adhesive layer 11 as much as possible. It should be noted that, if the dot structure 211 of the light guide plate includes a plurality of protrusions formed on the light emitting surface of the light guide plate, the gap here can be understood as a gap between two or more adjacent protrusions. If the dot structure 211 of the light guide plate includes a plurality of grooves (such as the dot structure 211 of the light guide plate described below in this embodiment) formed on the light-emitting surface of the light guide plate, the gap can be understood as a void in the groove.
Further, considering the bonding effect of the first adhesive layer 11 (the bonding effect is affected when the first adhesive layer 11 is too thin) and the influence of the first adhesive layer 11 on the dot structure 211 of the light guide plate (the influence is smaller when the first adhesive layer 11 is thinner), the thickness of the first adhesive layer 11 may range from 5 μm to 50 μm (micrometer), so as to obtain a relatively better bonding effect and reduce the influence of the first adhesive layer 11 on the dot structure 211 of the light guide plate as much as possible. Preferably, the thickness of the first glue layer 11 may be 10 μm.
In another specific implementation manner of this embodiment, based on the application principle (regarding the refractive index) of the first adhesive layer 11, the first adhesive layer 11 may include a silica gel with a relatively small refractive index, and the refractive index of the silica gel may be less than or equal to 1.45, so as to achieve a small light-emitting angle as much as possible. Preferably, the refractive index of the silica gel may be 1.41.
In another embodiment of the present application, the protection layer 12 may include a transparent organic material layer to reduce the influence of the protection layer 12 on the transmittance of light. Preferably, the organic material layer may include Polyethylene terephthalate (PET).
Based on the same concept of the above bonding structures, as shown in fig. 3, the present embodiment further provides a display device, which includes a display panel 50, a front light source 20, a touch panel 30, and a first bonding structure 40 and a second bonding structure 10 ', the first bonding structure 10 is used for bonding the display panel and the front light source 20, the second bonding structure 10 is used for bonding the front light source 20 and the touch panel 30, and the second bonding structure 10' is the bonding structure 10 of any of the above embodiments.
In this embodiment, for verifying the display effect of the display device adopting the above bonding structure 10, the display device not adopting the above bonding structure 10 and the display device adopting the above bonding structure 10 are respectively subjected to a display test, and a test result shows that the display brightness and the contrast of the display device adopting the above bonding structure 10 are all obviously improved compared with the display device not adopting the above bonding structure 10, wherein the contrast can be improved by several times.
In the display device provided by this embodiment, the bonding structure 10 is used to bond the front light source 20 and the touch panel 30, and the protective layer 12 of the bonding structure 10 can isolate the second adhesive layer 13 bonded to the touch panel 30 from the front light source 20, so as to prevent the second adhesive layer from contacting the light guide plate of the front light source 20, thereby protecting the dot structure 211 of the light guide plate of the front light source 20. And because the protective layer 12 is added, the thinner first adhesive layer 11 can be arranged for bonding the front light source 20, even if the first adhesive layer 11 has fluidity, the content of the first adhesive layer is less, and most of the first adhesive layer 11 is attached to the protective layer 12 and the front light source 20, so that the adhesive flowing to the dot structure 211 of the light guide plate is very limited, the adhesive structure 10 can be prevented from damaging the dot structure 211 of the light guide plate when the front light source 20 is bonded with the touch screen 30, and the defects of large-angle light emitting and even light emitting failure caused by the dot failure of the light guide plate are avoided, thereby ensuring the high brightness, high contrast ratio and the like of the display device. And compare in frame subsides touch-sensitive screen 30, the display device overall structure that adopts this adhesive structure 10 to bond is more firm, is difficult for appearing the interlayer separation, and the mesh point face of leading light source 20 can realize laminating entirely, and the protective effect is better, can effectively prevent to get into the inside bad demonstration etc. that causes of product because of steam, dust etc..
In an embodiment of the present invention, as shown in fig. 4, the dot structure 211 of the light guide plate 21 of the front light 20 may include a plurality of grooves formed on the light emitting surface of the light guide plate 21. The dot structure 211 formed by the plurality of grooves is adopted, and compared with the dot structure formed by the plurality of protrusions, the first adhesive layer 11 can more easily form a whole film layer on the grooves, and is not easy to enter the grooves, so that the dot structure 211 of the light guide plate 21 can be further prevented from being damaged by the first adhesive layer 11.
Further, in general, the larger the diameter of the groove is, the more favorable the first adhesive layer 11 enters the groove, so that the dot structure 211 is more easily damaged by the first adhesive layer 11; if the groove is too small, the light output may be affected, and the display effect may be affected. In this embodiment, the diameter of the groove may range from 10 μm to 40 μm, and the depth of the groove may range from 3 μm to 10 μm, so as to prevent the dot structure 211 from being damaged by the first adhesive layer 11 as much as possible on the premise of ensuring the light output. Preferably, the diameter of the groove may be 25 μm and the depth of the groove may be 8 μm. The density of the dots on the light guide plate 21 may be set as: from the light incident side to the light emergent side, the mesh point density gradually increases from low to high so as to adjust the light emergent intensity. The specific spacing between two adjacent grooves can be found in the prior art, and this embodiment is not particularly limited thereto. It should be noted that, the present embodiment is not limited to the value ranges of the diameter and the depth of the groove, and a person skilled in the art may set the diameter and the depth to be any values according to actual needs, and the sizes of the grooves on the same light guide plate may be the same or different, which is not specifically limited in this embodiment.
Referring to fig. 4, as shown in fig. 4, the grooves may be formed on an original plate 203 to obtain an original mold 202, then a casting process is used to form a convex dot mold 201 of the light guide plate, and then the convex dot mold 201 is used to perform hot pressing and cutting on the light guide plate sheet to obtain the light guide plate 21 with a plurality of grooves on the light exit surface. The light guide plate sheet may be a 0.4mm PC plate (polycarbonate plate).
Based on the same concept of the above bonding structure 10, the present embodiment further provides a bonding method of a display device, which applies the bonding structure 10 of any of the above embodiments and includes the following steps:
bonding the first adhesive layer 11 with the front light source 20;
and bonding the second adhesive layer 13 with the touch screen 30.
In order to prevent the first adhesive layer 11 from generating bubbles, a predetermined pressure (e.g., 0.5MPa) may be applied to the protective layer 12 coated with the first adhesive layer 11 at a predetermined temperature (e.g., 30 ℃) and maintained for a predetermined time (e.g., 20min) to discharge the bubbles between the first adhesive layer 11 and the protective layer 12. Because the fluidity of the OCA glue becomes larger after heating, the first glue layer 11 can be cured (ultraviolet irradiation can be adopted) to improve the hardness of the first glue layer 11 and reduce the fluidity thereof. Then the first adhesive layer 11 is bonded with the front light source 20, and then an appropriate amount of the second adhesive layer 13 is coated on the protective layer 12, and then the second adhesive layer 13 is bonded with the touch screen 30. After the front light source 20 and the touch screen 30 are attached to each other, the display device may be properly defoamed, and a specific defoaming process is not particularly limited in this embodiment, referring to the prior art.
The bonding method provided by this embodiment, using the bonding structure 10, can at least achieve the beneficial effects of the bonding structure 10, and will not be described herein again.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. The utility model provides a bonding structure for bonding between leading light source and the touch-sensitive screen, its characterized in that, include certainly leading light source to first glue film, protective layer and the second glue film that the touch-sensitive screen set gradually, wherein:
the first adhesive layer is used for bonding with the front light source;
the second adhesive layer is used for being bonded with the touch screen;
the protective layer is used for isolating the second adhesive layer from the front light source so as to protect the mesh point structure of the light guide plate of the front light source.
2. The bonding structure according to claim 1, wherein the thickness of the first adhesive layer is set to reduce the filling amount of the first adhesive layer in the gap formed by the dot structure of the light guide plate.
3. The bonding structure according to claim 2, wherein the thickness of the first adhesive layer ranges from 5 μm to 50 μm.
4. The bonding structure according to any one of claims 1 to 3, wherein the first adhesive layer comprises a silicone gel having a refractive index of 1.45 or less.
5. A bonded structure according to any of claims 1-3, wherein the protective layer comprises a transparent organic material layer.
6. The bonded structure of claim 5, wherein the organic material layer comprises polyethylene terephthalate.
7. A display device comprising a display panel, a front light, a touch screen, and a first adhesive structure and a second adhesive structure, wherein the first adhesive structure is used for bonding the display panel and the front light, and the second adhesive structure is used for bonding the front light and the touch screen, and the second adhesive structure is the adhesive structure according to any one of claims 1 to 6.
8. The display device as claimed in claim 7, wherein the dot structure of the light guide plate of the front light comprises a plurality of grooves formed on the light emitting surface of the light guide plate.
9. The display device according to claim 8, wherein the diameter of the groove has a value in a range of 10 μm to 40 μm, and the depth of the groove has a value in a range of 3 μm to 10 μm.
10. A bonding method of a display device, characterized in that the bonding structure of any one of claims 1 to 7 is applied, and comprising the steps of:
bonding the first adhesive layer with the front light source;
and bonding the second adhesive layer with the touch screen.
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| CN202010605135.6A CN111640370A (en) | 2020-06-29 | 2020-06-29 | Bonding structure, display device, and bonding method for display device |
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| CN202010605135.6A CN111640370A (en) | 2020-06-29 | 2020-06-29 | Bonding structure, display device, and bonding method for display device |
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| CN112946948A (en) * | 2021-02-08 | 2021-06-11 | 捷开通讯(深圳)有限公司 | Display panel and display device |
| CN112946953A (en) * | 2021-02-09 | 2021-06-11 | 捷开通讯(深圳)有限公司 | Reflective display screen device |
| CN114299825A (en) * | 2021-12-30 | 2022-04-08 | 霸州市云谷电子科技有限公司 | Display module and electronic equipment |
| WO2023273613A1 (en) * | 2021-07-02 | 2023-01-05 | 捷开通讯(深圳)有限公司 | Mobile device and liquid crystal screen backlight module |
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