CN113093423B - Laminating process of touch display screen - Google Patents
Laminating process of touch display screen Download PDFInfo
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- CN113093423B CN113093423B CN202110314102.0A CN202110314102A CN113093423B CN 113093423 B CN113093423 B CN 113093423B CN 202110314102 A CN202110314102 A CN 202110314102A CN 113093423 B CN113093423 B CN 113093423B
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- conductive layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
Abstract
The invention discloses a touch display screen laminating process, which comprises the following steps: the display module is attached to the antireflection film layer to form a first body to be attached; attaching the touch panel to the antireflection film layer through an optical function adhesive film to form a second to-be-attached body; and curing the second body to be attached, wherein the optical function adhesive film has thermoplastic property, and an air layer is arranged between the antireflection film layer and the display module. According to the invention, the first to-be-bonded body and the touch panel are bonded by adopting the optical function adhesive film with bonding and optical properties, the touch panel and the antireflection film layer can be directly bonded on two sides of the optical function adhesive film, the second to-be-bonded body has the optical properties of the antireflection film and the optical function adhesive film, and the adhesive is not required to be additionally arranged for bonding the optical films, so that the number of the attached films in the touch display screen is reduced, the bonding step of the touch display screen is simplified, and the bonding efficiency of the touch display screen is improved.
Description
Technical Field
The invention relates to the technical field of display screen lamination, in particular to a touch display screen lamination process.
Background
The touch display screen can read and write in a man-machine interaction mode, input is more visual, in order to ensure the operability of the touch display screen, the touch display screen is required to have good viewing sense, brightness and color saturation, in the related technology, the effects of reducing glare and improving brightness are achieved by sticking or plating a film layer on the surface of a display screen cover plate, and the structure and the production process of the touch display screen are complex due to the adhesion of a plurality of film layers, so that the production efficiency and the yield are influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a laminating process of a touch display screen, which can improve the production efficiency of the touch display screen.
The touch display screen attaching process according to the embodiment of the invention comprises the following steps:
the display module with flexibility laminates with anti-reflection coating layer, forms first laminating body, and display module with form the air bed between the anti-reflection coating layer, after the first laminating body shaping, with the first laminating body of treating carries out the deaeration and handles, display module includes conducting layer and display panel, the conducting layer is used for realizing the touch-control function of touch-control display screen, the shaping step of first laminating body includes: attaching the anti-reflection film layer and the display panel to two sides of the conductive layer respectively;
attaching the cover panel to the antireflection film layer through an optical function adhesive film with thermoplastic performance to form a second to-be-attached body;
and curing the second body to be bonded.
The touch display screen laminating process provided by the embodiment of the invention has at least the following beneficial effects:
according to the laminating process of the touch display screen, the optical functional adhesive film with bonding and optical properties is adopted to bond the first to-be-laminated body and the cover panel, the cover panel and the antireflection film layer can be directly bonded on two sides of the optical functional adhesive film, the second to-be-laminated body has the optical properties of antireflection and the optical functional adhesive film, and the adhesive is not required to be additionally arranged to attach the optical film, so that the number of attached films in the touch display screen is reduced, the laminating steps of the touch display screen are simplified, and the laminating efficiency of the touch display screen is improved.
According to some embodiments of the invention, the forming step of the first body to be bonded includes: after the antireflection film layer is attached to one side of the conductive layer, the display panel is attached to the other side of the conductive layer.
According to some embodiments of the invention, the conductive layer includes a first conductive layer and a second conductive layer, and the forming step of the first body to be bonded includes: and the first conductive layer and the second conductive layer are mutually attached and then are jointly attached to the anti-reflection film layer.
According to some embodiments of the invention, the conductive layer includes a first conductive layer and a second conductive layer, and the forming step of the first body to be bonded includes: and attaching the second conductive layer to the other side of the first conductive layer after attaching the antireflection film layer to one side of the first conductive layer.
According to some embodiments of the invention, the forming step of the first body to be bonded includes: and a circle of laminating adhesive is arranged at the edge of the conductive layer, and the antireflection film layer is adhered to the laminating adhesive.
According to some embodiments of the invention, after the first to-be-bonded body is formed, air in the air layer is extracted, so that the air layer is in a semi-vacuum state.
According to some embodiments of the invention, the forming step of the second body to be bonded includes:
after the first to-be-attached body is molded, respectively attaching the antireflection film layer and the cover panel to two sides of the optical function adhesive film to form a second to-be-attached body;
and carrying out hot pressing and solidification on the second body to be attached.
According to some embodiments of the invention, the surface of the cover panel is coated with a functional coating.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic flow chart of an embodiment of a touch display screen bonding process according to the present invention;
FIG. 2 is a schematic flow chart of another embodiment of a touch display screen bonding process according to the present invention;
fig. 3 is a schematic structural diagram of an embodiment of a touch display screen according to the present invention.
Reference numerals: the display device comprises a display module 100, a display panel 110, a conductive layer 120, a first conductive layer 121 and a second conductive layer 122; an antireflection film layer 200; covering the panel 300; an optical functional adhesive film 400; an air layer 500; laminating adhesive 600.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 and 3, in one embodiment of the present invention, a touch display screen attaching process is provided to give consideration to both good viewing feeling of the touch display screen and convenience of a processing process. The touch display screen attaching process comprises the following steps: the display module 100 is attached to the antireflection film layer 200 to form a first to-be-attached body, and the cover panel 300 is attached to the antireflection film layer 200 through the optical functional adhesive film 400, so that the first to-be-attached body, the optical functional adhesive film 400 and the cover panel 300 are mutually combined to form a second to-be-attached body, and after the second to-be-attached body is solidified, all parts are connected and fixed to form the touch display screen.
It should be noted that, the optical functional adhesive film 400 has thermoplastic properties, and the optical functional adhesive film 400 has both optical properties, such as blue light resistance, anti-glare, and the like, and has adhesive properties of colloid, and can form a molten state after heating, so that the optical functional adhesive film 400 can flow between the anti-reflection film layer 200 and the cover panel 300 to fill gaps between the two, so that the adhesion between the anti-reflection module and the cover panel 300 is smoother. In addition, the anti-reflection film 200 and the display module 100 have an air layer 500, and the air layer 500 provides a space for the light irradiated on the anti-reflection film 200 to interfere with each other, thereby increasing the anti-reflection effect.
According to the touch display screen laminating process provided by the embodiment of the invention, the optical functional adhesive film 400 with bonding and optical properties is adopted to bond the first to-be-laminated body and the cover panel 300, the cover panel 300 and the antireflection film layer 200 can be directly bonded on two sides of the optical functional adhesive film 400, the second to-be-laminated body is provided with the optical properties of the antireflection film 400 after being molded, and the adhesive is not required to be additionally arranged to attach the optical film, so that the number of attached films in the touch display screen is reduced, the laminating step of the touch display screen is simplified, and the laminating efficiency of the touch display screen is improved.
The optical functional adhesive film 400 has the function of resisting blue light or anti-glare, and the touch display screen can simultaneously have the functions of anti-reflection, anti-dazzle or anti-reflection and anti-blue light, so that the touch display screen optimizes the anti-dazzle or anti-blue light performance and improves the practicability of the touch display screen on the premise of having enough brightness. In addition, in order to further improve the display effect of the touch display screen, the surface of the cover panel 300 is further coated with a functional coating, which may be a protective coating, a decorative coating, or a coating having an optical effect, such as an anti-glare coating, a brightness enhancing coating, or the like. In one embodiment of the present invention, the optical functional adhesive film 400 has an anti-glare function, and the surface of the cover panel 300 is coated with an anti-glare coating, so that both sides of the cover panel 300 have anti-glare effects, and the dual anti-glare arrangement can make the light output of the cover panel 300 more uniform, thereby further optimizing the display effect of the touch display screen.
The optical functional adhesive film 400 may be a UV curable optically transparent hot melt adhesive film (Thermal-melt Optical Clear Adhesive, TOCA) with optical performance, which has high light transmittance, good ductility, fluidity after heating, capability of preventing rebound of the adhesive film and occurrence of buckling deformation of the material, strong self-adhesion, high adhesive strength, and capability of firmly adhering the cover panel 300 to the antireflection film layer 200, so that the lamination between the cover panel 300 and the first body to be laminated is more stable. The antireflection film layer 200 can be made of magnesium fluoride material to reduce the intensity of reflected light and increase the intensity of transmitted light, so that the imaging of the optical system is clearer.
The display module 100 may be a complete display module or a partial display module, when the display module 100 is a complete display module, the display module 100 may be a OLED, LED, LCD light emitting module, and the touch display screen may be selected as an infrared or capacitive touch type; when the display module 100 is a part of the display module, the display module 100 can be attached to the first attaching body first, then other components in the display module are attached, and finally the assembly formed by combining the display module and the cover panel 300 is cured to form the touch display screen.
In an embodiment, referring to fig. 2 and fig. 3, the display module 100 includes a conductive layer 120 and a display panel 110, the display panel 110 is used for emitting light and displaying images, the conductive layer 120 is used for realizing a touch function of a touch display screen, when a first to-be-attached body is attached, the anti-reflection film layer 200 and the display panel 110 are respectively attached to the conductive layer 120, the conductive layer 120 touches an image on the display panel 110, the light emitted from the conductive layer 120 is emitted into the anti-reflection film layer 200, and is emitted from the surface of the cover panel 300 after passing through anti-dazzle or anti-blue light of the optical function adhesive film 400, so that the loss of the light when passing through different components is reduced, and the display effect of the touch display screen is optimized. The display panel 110 may be selected as a liquid crystal panel.
When the first body to be bonded is formed, the antireflection film layer 200 may be attached to one side of the conductive layer 120, and then the display panel 110 may be attached to the conductive layer 120. In this molding mode, the display panel 110 is attached last, so that the attaching frequency of the display panel 110 can be reduced, the manufacturing cost of the display panel 110 is high, and the above attaching mode can reduce the probability of damage of the display panel 110 in the attaching process and reduce the cost.
The conductive layer 120 includes a first conductive layer 121 and a second conductive layer 122, where the first conductive layer 121 and the second conductive layer 122 can be formed by compounding transparent conductive films and a substrate, and the conductive films of the first conductive layer 121 and the second conductive layer 122 have electrodes in different directions, and the two electrodes are combined to position a touch point in different directions, so as to realize a touch function of the conductive layer 120.
When the first body to be bonded is formed, the first conductive layer 121 and the second conductive layer 122 are firstly attached to each other to form the conductive layer 120, then the conductive layer 120 is attached to the anti-reflection film layer 200, and finally the display panel 110 is bonded to the conductive layer 120; alternatively, the anti-reflection film layer 200 is first attached to one side of the first conductive layer 121, then the second conductive layer 122 is attached to the other side of the first conductive layer 121, and finally the display panel 110 is attached to the second conductive layer 122. The forming process of the first body to be laminated is flexible, and corresponding laminating sequences can be set according to actual laminating requirements.
When the anti-reflection coating 200 is attached to the conductive layer 120, a circle of adhesive 600 is firstly enclosed at the edge of the conductive layer 120, then the anti-reflection coating 200 is adhered to the adhesive 600, and the anti-reflection coating 200 is attached in a frame-attaching mode, so that an air layer 500 is formed between the conductive layer 120 and the anti-reflection coating 200 at the inner side of the adhesive 600. The adhesive 600 may be selected from foam, OCA, TOCA, or OCR adhesive, for example, a circle of foam or OCA tape is attached along the edge of the conductive layer 120, and the anti-reflection film 200 is attached to the surface of the conductive layer 120 and is adhered by the adhesive 600; or, a circle of OCR glue is coated along the edge point of the conductive layer 120, and the anti-reflection film layer 200 is attached to the surface of the conductive layer 120 and is contacted with the OCR glue for bonding; in one embodiment of the invention, the OCA tape is selected to bond the conductive layer 120 and the anti-reflection film layer 200, and the height of the bonding adhesive 600 is reduced on the basis of realizing frame bonding, so that the overall thickness of the touch display screen is reduced; a TOCA optical adhesive may also be used to ensure adhesion strength between the conductive layer 120 and the anti-reflection film layer 200.
After the first bonded body is molded, air in the air layer 500 is extracted, and the air layer 500 is brought into a semi-vacuum state. On the one hand, space is provided for the anti-reflection film layer 200 to transmit light, so that the light transmittance of the touch display screen is improved, and on the other hand, the air layer 500 can improve the passing rate of the touch display screen in the environment detection of dropping, needling and the like.
It should be noted that, in the embodiment of the present invention, the anti-reflection film layer 200 and the conductive layer 120 are bonded by using a frame bonding method, and the method has low requirement on the flatness of bonding, and is applicable to bonding of large-size display screens; and, attach through optical function glued membrane 400 between cover panel 300 and the anti-reflection coating layer 200, optical function glued membrane 400 hot melt is flowable, can fully fill the clearance between cover panel 300 and the anti-reflection coating layer 200, has overcome the defect that the bubble appears easily in the large-scale display screen laminating process, has improved the laminating yield of large-scale touch display screen to make the touch display screen possess good optical property when laminating.
In the embodiment of the invention, the conductive layer 120 is attached to the anti-reflection film layer 200, then the display panel 110 is attached to the anti-reflection film layer 200, and finally the cover panel 300 is attached, so that the conductive layer 120, the anti-reflection film layer 200 and the display panel 110 have higher flexibility, foam is conveniently discharged, and the first body to be attached can be defoamed before the cover panel 300 is attached, so that the attachment between all the components in the first body to be attached is more compact and flat. For example, the first body to be bonded may be placed in a vacuum degassing apparatus, and the first body to be bonded may be defoamed.
Specifically, the forming step of the second body to be bonded includes: after the first attaching body is formed, attaching the antireflection film layer 200 and the cover panel 300 to two sides of the optical functional adhesive film 400 respectively to form a second to-be-attached body; when in attachment, the release film on one side of the optical functional adhesive film 400 can be torn off to expose the inner adhesive film, the antireflection film layer 200 is attached to one side of the optical functional adhesive film 400, then the release film on the other side is torn off, and the cover panel 300 is attached to the other side of the optical functional adhesive film 400; in addition, in the attaching process, the optical functional adhesive film 400, the anti-reflection film layer 200 and the cover panel 300 can be attached by means of rollers or scrapers on the attaching jig in a rolling or pushing mode, so that the attachment of the optical functional adhesive film 400, the anti-reflection film layer 200 and the cover panel 300 is smoother, and bubbles among components can be discharged in the attaching process.
After the second body to be bonded is formed, the second body to be bonded is subjected to hot pressing, so that the optical functional adhesive film 400 is converted into a molten state, and gaps between the antireflection film layer 200 and the cover panel 300 are gradually filled through the flow of the optical functional adhesive film 400, so that the antireflection film layer and the cover panel 300 are in close contact. In addition, when the optical functional adhesive film 400 flows, the extrusion force and the stress of the display panel 110 and the cover panel 300 in the hot pressing or attaching process can be absorbed, so that the deformation and rebound of the display panel 110 and the cover panel 300 after the lamination are avoided, and the lamination quality of the touch display screen and the bonding strength between the components are improved.
After the second to-be-attached body is hot pressed, the second to-be-attached body can be subjected to defoaming treatment, and bubbles between the antireflection film layer 200 and the cover panel 300 and bubbles between the antireflection film layer 200 and the conductive layer 120 can be discharged simultaneously in the defoaming process, so that the evenness of attaching the display screen is improved, and the defects of Newton rings, rainbow lines and the like are avoided.
In the bonding process and after the bonding is completed, the body to be cured can be detected. If, after the hot pressing is completed or the defoaming is completed, appearance detection and electrical property detection are performed on the second to-be-bonded body, wherein the appearance detection mainly detects whether the bonding position is an obvious bonding position, a crack position or not and whether glue overflow phenomenon exists, and the electrical property detection mainly detects whether the second to-be-bonded body can normally display content or not after bonding and whether electrical connection is bad or not. If there is a poor lamination area, the optical functional adhesive film 400 can be torn off, so that the adhesive film is separated from the second to-be-laminated body, the adhesive film can be adhered again, and the tearing process does not damage parts, so that the rejection rate is reduced on the premise of repairing the lamination quality.
If no defective adhesion region is detected, the body to be cured may be cured, and the curing step may be performed by ultraviolet curing or thermal curing, or by a combination of ultraviolet and thermal curing. When the ultraviolet rays are cured, the second body to be bonded is irradiated with the ultraviolet rays, and the optical functional adhesive film 400 and the bonding adhesive 600 are completely cured under the irradiation of the ultraviolet rays, so that the bonding and fixing of all the components are realized. OCA adhesive tape or TOCA adhesive film can be adopted for attaching and curing between the first conductive layer 121 and the second conductive layer 122 and between the conductive layer 120 and the display panel 110; in addition, after the hot pressing step is set up in the second body to be laminated and formed, the TOCA adhesive films among different parts in the touch display screen can be simultaneously hot melted and flowed, and the curing step can simultaneously cure all the laminating adhesives 600 and the optical function adhesive films 400 in the touch display screen, so that the laminating efficiency is high.
Because the display panel 110 is located below the cover panel 300, in the embodiment of the invention, the display panel 110 is attached first, and then the cover panel 300 is attached, on one hand, the irradiation of ultraviolet rays to the optical function adhesive film 400 and the optical adhesive is prevented from being blocked by the ink area of the cover panel 300, the ultraviolet rays can directly irradiate from the display panel 110 to the cover panel 300, and the defect that holes are needed to be formed in the ink area of the cover panel 300 during ultraviolet irradiation is overcome; on the other hand, since the display panel 110 has high flexibility and good foam discharging effect, the first body to be attached can be firstly foamed and then the cover panel 300 can be attached, so that the smoothness of the touch display screen attachment can be further improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. The touch display screen attaching process is characterized by comprising the following steps of:
the display module with flexibility laminates with anti-reflection coating layer, forms first laminating body, and display module with form the air bed between the anti-reflection coating layer, after the first laminating body shaping, with the first laminating body of treating carries out the deaeration and handles, display module includes conducting layer and display panel, the conducting layer is used for realizing the touch-control function of touch-control display screen, the shaping step of first laminating body includes: attaching the anti-reflection film layer and the display panel to two sides of the conductive layer respectively;
attaching the cover panel to the antireflection film layer through an optical function adhesive film with thermoplastic performance to form a second to-be-attached body;
and curing the second body to be bonded.
2. The touch display screen bonding process according to claim 1, wherein the forming of the first body to be bonded includes: after the antireflection film layer is attached to one side of the conductive layer, the display panel is attached to the other side of the conductive layer.
3. The touch display screen attaching process according to claim 1 or 2, wherein the conductive layer includes a first conductive layer and a second conductive layer, and the forming step of the first body to be attached includes: and the first conductive layer and the second conductive layer are mutually attached and then are jointly attached to the anti-reflection film layer.
4. The touch display screen attaching process according to claim 1 or 2, wherein the conductive layer includes a first conductive layer and a second conductive layer, and the forming step of the first body to be attached includes: and attaching the second conductive layer to the other side of the first conductive layer after attaching the antireflection film layer to one side of the first conductive layer.
5. The touch display screen bonding process according to claim 1, wherein the forming of the first body to be bonded includes: and a circle of laminating adhesive is arranged at the edge of the conductive layer, and the antireflection film layer is adhered to the laminating adhesive.
6. The touch display screen bonding process according to claim 1, wherein after the first body to be bonded is molded, air in the air layer is extracted, so that the air layer is in a semi-vacuum state.
7. The touch display screen bonding process according to claim 1, wherein the forming step of the second body to be bonded includes:
after the first to-be-attached body is molded, respectively attaching the antireflection film layer and the cover panel to two sides of the optical function adhesive film to form a second to-be-attached body;
and carrying out hot pressing and solidification on the second body to be attached.
8. The touch display screen fitting process according to claim 1, wherein the surface of the cover panel is coated with a functional coating.
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| CN109739380A (en) * | 2018-12-28 | 2019-05-10 | 惠州市华星光电技术有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN110442258A (en) * | 2019-07-15 | 2019-11-12 | 惠州市华星光电技术有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN110851012A (en) * | 2019-10-12 | 2020-02-28 | 深圳市华星光电半导体显示技术有限公司 | Touch display device and manufacturing method thereof |
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| CN206282254U (en) * | 2016-12-06 | 2017-06-27 | 深圳业际光电有限公司 | A kind of touch display structure |
| CN110136581B (en) * | 2019-04-01 | 2022-01-04 | 陈波 | Thermoplastic optical adhesive attaching method and application and display |
| CN110837315A (en) * | 2019-10-12 | 2020-02-25 | 深圳市华星光电半导体显示技术有限公司 | Touch display device and manufacturing method thereof |
| CN111857444A (en) * | 2020-06-19 | 2020-10-30 | 深圳全息界科技有限公司 | GFF (glass fiber reinforced film) type touch screen laminating process and touch screen |
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| CN109739380A (en) * | 2018-12-28 | 2019-05-10 | 惠州市华星光电技术有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN110442258A (en) * | 2019-07-15 | 2019-11-12 | 惠州市华星光电技术有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN110851012A (en) * | 2019-10-12 | 2020-02-28 | 深圳市华星光电半导体显示技术有限公司 | Touch display device and manufacturing method thereof |
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