WO2016065802A1 - 将第一面板与第二面板相贴合的方法和显示装置 - Google Patents

将第一面板与第二面板相贴合的方法和显示装置 Download PDF

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Publication number
WO2016065802A1
WO2016065802A1 PCT/CN2015/074362 CN2015074362W WO2016065802A1 WO 2016065802 A1 WO2016065802 A1 WO 2016065802A1 CN 2015074362 W CN2015074362 W CN 2015074362W WO 2016065802 A1 WO2016065802 A1 WO 2016065802A1
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WIPO (PCT)
Prior art keywords
panel
protective strip
transparent liquid
colorless transparent
liquid glue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/074362
Other languages
English (en)
French (fr)
Inventor
罗鸿强
许邹明
范文金
曾亭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/777,591 priority Critical patent/US20160271928A1/en
Publication of WO2016065802A1 publication Critical patent/WO2016065802A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/142—Laminating of sheets, panels or inserts, e.g. stiffeners, by wrapping in at least one outer layer, or inserting into a preformed pocket
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B32B37/182—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only one or more of the layers being plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/10—Removing layers, or parts of layers, mechanically or chemically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2405/00—Adhesive articles, e.g. adhesive tapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses

Definitions

  • the present invention relates to the field of assembly of display devices, and in particular to a method of bonding a first panel to a second panel and a display device obtained by the method.
  • Display devices typically include a display panel and an auxiliary panel such as a touch panel, a protective cover, etc. that are attached to the display panel.
  • the auxiliary panel is generally attached to the display panel by the following two methods.
  • the first method is to adhere the auxiliary panel to the display panel by using a solid transparent adhesive (ie, a transparent protective strip).
  • a transparent protective strip ie, a transparent protective strip
  • the disadvantage is that bubbles are easily generated between the display panel and the auxiliary panel
  • the second method is to adhere the auxiliary panel to the display panel by using a transparent liquid glue, which has the disadvantage that it is difficult to control the diffusion range of the transparent liquid glue. It is easy to produce defects such as lack of glue, overflow glue, water ripple and the like in the periphery of the display device.
  • the display device obtained by the above method has a high yield.
  • the present invention provides a method of bonding a first panel and a second panel, the first panel and the second panel being bonded to form a display device or display a portion of the device, the first panel having a surface area greater than a surface area of the second panel, wherein the method comprises the steps of:
  • the step of providing a removable protective strip around the first panel comprises: providing a removable protective strip on an edge portion of the surface of the first panel.
  • the first panel is a touch panel
  • the second panel is a display module
  • the first panel is a display module, and the second panel is a touch panel; or
  • the first panel is a protective cover
  • the second panel is a liquid crystal cell or a touch glass panel provided with a touch sensor
  • the first panel is a liquid crystal cell or a touch glass panel provided with a touch sensor; the second panel is a protective cover.
  • the volume of the colorless transparent liquid glue disposed in the area enclosed by the protection strip is larger than the volume formed by the first panel and the second panel when the second panel is not filled with the colorless transparent liquid glue.
  • the volume of the cavity is larger than the volume formed by the first panel and the second panel when the second panel is not filled with the colorless transparent liquid glue.
  • the second panel is a panel having four chamfers
  • the first panel is provided with a button
  • a side of the second panel corresponding to the button is formed with a groove
  • the groove The shape of the inner edge is the same or similar to the shape of the outer edge of the button.
  • a colorless transparent liquid glue is disposed in a region surrounded by the protective strip by slit coating.
  • a colorless transparent liquid glue is disposed in a region surrounded by the protective strip by means of dispensing.
  • the method further comprises the steps of: providing a colorless transparent liquid glue in a region surrounded by the protective strip and a step of bonding the first panel to the second panel:
  • the method further comprises performing the step of bonding the first panel to the second panel:
  • the step of removing the protective strip is performed between a step of bonding the first panel to the second panel and a step of defoaming the colorless transparent liquid glue.
  • the method further comprises performing the step of providing a removable protective strip around the first panel:
  • the step of performing a cleaning process on the first panel and the second panel is a step of performing a cleaning process on the first panel and the second panel.
  • the step of performing cleaning processing on the first panel and the second panel comprises: performing plasma cleaning on the first panel and the second panel respectively.
  • the first panel is a touch panel
  • the second panel is a display module
  • the first panel comprises a first panel body and a black matrix surrounding an edge portion disposed on a surface of the first panel body
  • the protection strip is disposed on the black matrix.
  • the protective strip is peelable, and the protective strip is disposed around the first panel by printing; or
  • the protective strip is an adhesive tape, and the protective strip is disposed around the first panel by attaching.
  • a display device wherein the display device comprises a first panel and a second panel that are bonded together using the method of the present invention.
  • the colorless transparent liquid glue is disposed in the area surrounded by the protective strip, an overflow phenomenon occurs, and/or the first panel is bonded to the second panel.
  • the spilled glue will eventually accumulate on the protective strip that can be removed, so after the colorless transparent liquid glue is cured to bond the first panel and the second panel together, the protective strip is removed.
  • the glue on the protective strip can be removed. From this, it is understood that defects such as overflow of glue do not occur on a part of the display device or the display device obtained by the method provided by the present invention.
  • FIG. 1 is a flow chart of a method for bonding a first panel and a second panel according to the present invention
  • Figure 2 is a front view of the first panel after the protection strip is placed
  • Figure 3 is a plan view of the structure shown in Figure 2;
  • Figure 4 is a plan view of the protective strip in the structure shown in Figure 2;
  • Figure 5 is a plan view showing the colorless transparent liquid glue on the structure shown in Figure 3 by means of slit coating;
  • Figure 6 is a front elevational view of the structure shown in Figure 5;
  • Figure 7 is a plan view showing the colorless transparent liquid glue on the structure shown in Figure 3 by means of spot coating;
  • Figure 8 is a front elevational view of the structure shown in Figure 7;
  • Figure 9 is a front elevational view showing the structure formed by laminating the first panel and the second panel;
  • Figure 10 is a front elevational view showing a portion of the display device or display device formed after removing the protective strip in the structure shown in Figure 9;
  • Figure 11 is a plan view of the second panel
  • Figure 12 is a top plan view of a portion of the display device or display device shown in Figure 10.
  • first panel 110 first panel body
  • the present invention provides a first The method of bonding the panel 100 to the second panel 300 (see FIG. 10 ), the first panel 100 and the second panel 300 are bonded together to form a part of the display device or the display device.
  • the surface area of the first panel 100 is greater than that of the second panel 300 .
  • Surface area wherein the method comprises the following steps:
  • a step of providing a removable protective strip 210 around the first panel 100 preferably, a removable protective strip 210 (shown in Figures 2 and 3) is disposed on an edge portion of the surface of the first panel 100,
  • the shape of the area surrounded by the protection strip 210 corresponds to the shape of the second panel 300 (the shape of the protection strip 210 is as shown in FIG. 2 to FIG. 4, and the shape of the second panel 300 is as shown in FIG. 11);
  • a cured colorless transparent liquid glue 220' is formed between the first panel 100 and the second panel 300;
  • the step of removing the protective strip 210 The structure of a display device or a part of the display device formed after removing the protective strip 210 is as shown in FIG.
  • the step of providing a colorless transparent liquid glue in the area surrounded by the protective strip 210 there may be an overflow phenomenon (as shown in FIG. 6), in which the first panel 100 and the first panel are The glue may also occur during the process of bonding the two panels 300 (as shown in FIG. 9). Since the protective strip 210 is disposed around the colorless transparent liquid glue 2201 or 2202, the colorless transparent liquid glue 2201 or 2202 It will overflow on the protection strip 210 (as shown in Figures 6 and 9). After the colorless transparent liquid glue 2201 or 2202 is cured to bond the first panel 100 and the second panel 300 together, the glue on the protective strip 210 can be removed while the protective strip 210 is removed. From this, it is understood that defects such as overflow of glue do not occur on a part of the display device or the display device obtained by the method provided by the present invention.
  • the first panel 100 and the second panel 300 are bonded to each other by the curing of the colorless transparent liquid glue 2201 or 2202, and therefore, air bubbles do not occur between the first panel 100 and the second panel 300. It can be seen that the method provided by the present invention is utilized. The resulting display device or a portion of the display device has better optical properties.
  • the bonding of the first panel and the second panel by the method provided by the present invention can improve the yield of a portion of the obtained display device or display device.
  • the protection strip 210 is disposed on the first panel 100, and the shape and protection of the second panel 300 are protected.
  • the shape of the area enclosed by the strips 210 corresponds to each other. Therefore, after the first panel 100 and the second panel 300 are attached, the protection strip 210 is removed without affecting the adhesion between the second panel 300 and the first panel 100. Knot performance.
  • the first panel 100 and the second panel 300 are bonded together to form a part of the display device or the display device.
  • the first panel 100 may be a touch panel
  • the second panel 300 may be a display module, or vice versa.
  • a part of the display device may be a display panel or a touch panel. Therefore, the first panel 100 may be a liquid crystal cell or provided with a touch.
  • the touch panel of the sensor is controlled, and the second panel 300 may be a protective cover (for example, a cover glass), or vice versa.
  • the volume of the colorless transparent liquid glue 2201 or 2202 disposed in the region enclosed by the protective strip 210 is larger than the unfilled colorless transparent liquid.
  • the excess colorless transparent liquid glue 2201 or 2202 is disposed and the first panel 100 and the second panel 300 are attached, the excess colorless transparent liquid glue overflows from the cavity between the first panel 100 and the second panel 300. And stacked on the protective strip 210, so that the defect of lack of glue in the cavity between the first panel 100 and the second panel 300 can be ensured.
  • the overflow glue deposited on the protective strip 210 can be removed together without causing other defects such as wrinkles.
  • the shape of the area enclosed by the protective strip 210 corresponds to the shape of the second panel 300.
  • the protective strip 210 may be pretreated such that the protective strip 210 has a predetermined shape, specifically the area enclosed by the inner edge of the protective strip 210 after the protective strip 210 is disposed on the first panel 100.
  • the shape matches the shape of the outer contour of the second panel 300.
  • first panel 100 and the second panel 300 may be rectangular panels of a regular shape, may be substantially rectangular panels of irregular shape, or may be other shape panels other than rectangular panels.
  • the second panel 300 is a rectangular panel having four chamfers.
  • the first panel 100 is provided with a button 100a.
  • a side of the second panel 300 corresponding to the button 100a is formed with a groove, and the groove is formed.
  • the shape of the inner edge of the groove is the same as or similar to the shape of the outer edge of the button 100a.
  • the region surrounded by the inner edge of the protective strip 210 also has the same shape as the outer contour of the second panel 300, that is, the protective strip 210 is formed with a protective strip 210.
  • the specific manner of providing the colorless transparent liquid glue 2201 or 2202 in the region surrounded by the protective strip 210 is not limited, for example, as a preferred embodiment of the present invention, slit coating may be employed.
  • a colorless transparent liquid glue is disposed in a region surrounded by the protective strip 210.
  • the colorless transparent liquid glue 2201 can be filled in the area surrounded by the protective strip 210 by slit coating.
  • the thickness of the colorless transparent liquid glue 2201 can be made uniform by the slit coating method, and the slit coating efficiency is high.
  • a colorless transparent liquid glue may be disposed in a region surrounded by the protective strip 210 by means of dispensing.
  • a colorless transparent liquid glue 2202 may be disposed at a partial position in a region surrounded by the protective strip 210 by means of dispensing.
  • a colorless transparent liquid glue may be disposed in a region surrounded by the protective strip 210 by means of screen printing.
  • the method further comprises providing a colorless transparent liquid glue in a region surrounded by the protective strip 210.
  • the step is performed between the step of bonding the first panel 100 and the second panel 300: a step of pre-curing the colorless transparent liquid glue.
  • the pre-curing method can be selected according to the curing mechanism of the colorless transparent liquid glue.
  • the colorless transparent liquid glue is a light curing glue
  • the colorless transparent liquid glue can be pre-cured by means of illumination
  • the colorless transparent liquid glue is a heat curing glue
  • it can be colored and transparent by heating.
  • the liquid glue is pre-cured. Since the semi-cured colorless transparent liquid glue does not flow arbitrarily, when the first panel 100 and the second panel 300 are aligned, the semi-cured colorless transparent liquid glue does not stick to the second panel 300, thereby The adjustment of the position of the second panel 300 is affected, which is advantageous for ensuring accurate alignment between the first panel 100 and the second panel 300.
  • the method further comprises the step of bonding the first panel 100 and the second panel 300: a colorless transparent liquid glue
  • the step of defoaming is performed.
  • the first panel 100 and the second panel 300 that are bonded together can be placed in a defoaming furnace for pressure heating to eliminate the residual of the second panel when the first panel 100 and the second panel 300 are attached. Air between 300 and colorless transparent liquid glue.
  • the order in which the various steps are performed is not strictly limited, and the actual order of the steps may be determined by the implementer according to specific product requirements and production practices.
  • the above defoaming step may be performed between the step of bonding the first panel 100 and the second panel 300 and the step of curing the colorless transparent liquid glue, and the step of removing the colorless transparent liquid glue and removing the protection may be performed.
  • the steps of strip 210 it may also be performed after the step of removing guard strip 210.
  • the step of removing the protective strip 210 may be performed after the step of bonding the first panel 100 and the second panel 300.
  • the step of removing the protective strip 210 may be performed after the step of pre-curing the colorless transparent liquid glue. This is because, after the pre-curing of the colorless transparent liquid glue, the colorless transparent liquid glue can no longer flow arbitrarily, so that after the protective strip 210 is removed, the semi-cured colorless transparent liquid glue does not have ripples around it. Bad defects.
  • the step of removing the protective strip 210 is performed between the step of bonding the first panel 100 and the second panel 300 and the step of defoaming the colorless transparent liquid glue. Because, in the There may be a colorless transparent liquid glue overflowing during the bonding of the first panel 100 and the second panel 300, and pressurized heating is required during the defoaming process, which may damage the protective strip 210.
  • the method further includes before the protection strip 210 is disposed on the first panel 100: the first panel 100 and the The second panel 300 performs the step of cleaning.
  • the first panel 100 and the second panel 300 may be separately plasma-cleaned to remove foreign particles on the first panel 100 and the second panel 300.
  • the first panel 100 can be a touch panel
  • the second panel 300 can be a display module
  • the first panel 100 may include a first panel body 110 and a black matrix 120 surrounding an edge portion disposed on a surface of the first panel body 110, and the protection strip 210 may be disposed on the black matrix 120.
  • the first panel body 110 is provided with a touch sensor
  • the black matrix 120 is used to cover the leads of the touch sensor.
  • the material of the protective strip, the specific method of providing the protective strip, and the specific formation manner of the protective strip are not particularly limited.
  • the protective strip may be made of peelable glue, and in the step of providing a removable protective strip around the first panel, the protective strip may be formed by printing. .
  • the protective strip may be an adhesive tape.
  • the protective strip may be disposed by attaching Around the perimeter of a panel.
  • a display device obtained by the above method provided by the present invention comprising a first panel and a second panel which are bonded together by the above method provided by the present invention.
  • the colorless transparent liquid glue is disposed in the area surrounded by the protective strip, an overflow phenomenon occurs, and/or the first panel is bonded to the second panel.
  • the spilled glue will eventually accumulate on the protective strip that can be removed, so after the colorless transparent liquid glue is cured to bond the first panel and the second panel together, the protective strip is removed.
  • the glue on the protective strip can be removed.
  • a display device or display obtained by the method provided by the present invention is known Defects such as glue overflow do not occur on a part of the device.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种将第一面板（100）与第二面板（300）相贴合的方法，所述第一面板（100）和所述第二面板（300）贴合后形成显示装置或显示装置的一部分，所述第一面板（100）的表面积大于所述第二面板（300）的表面积，其中，所述方法包括如下步骤：在所述第一面板（100）的四周设置可去除的保护条（210）的步骤，使得所述保护条（210）围成的区域的形状与所述第二面板（300）的形状对应；在所述保护条（210）围成的区域内设置无色透明液体胶（2201）的步骤；将所述第一面板（100）与所述第二面板（300）贴合的步骤；将所述无色透明液体胶（2201）固化的步骤；以及去除所述保护条（210）的步骤。还提供一种利用上述方法获得的显示装置。利用所述方法得到的显示装置或显示装置的一部分上不会出现溢胶等缺陷。

Description

将第一面板与第二面板相贴合的方法和显示装置 技术领域
本发明涉及显示装置的组装领域，具体地，涉及一种将第一面板与第二面板相贴合的方法以及一种利用该方法获得的显示装置。
背景技术
很多显示装置(例如，手机、平板电脑等)通常包括显示面板和贴合在显示面板上的诸如触控面板、保护盖板等辅助面板。
现有技术中，一般采用如下两种方法将辅助面板贴合在显示面板上，第一种方法为利用固体透明胶(即，透明保护条)将辅助面板粘附在显示面板上，这种方法的缺点在于，容易在显示面板和辅助面板之间产生气泡；第二种方法为利用透明液体胶将辅助面板粘附在显示面板上，这种方法的缺点在于，难以控制透明液体胶的扩散范围，容易产生显示装置周边缺胶、溢胶、水纹等产品不良现象。
因此，如何防止在显示面板与辅助面板贴合时产生不良现象成为本领域亟待解决的技术问题。
发明内容
本发明的目的在于提供一种将显示面板与辅助面板相贴合的方法以及一种利用该方法获得的显示装置。利用上述方法获得显示装置具有较高的良率。
为了实现上述目的，作为本发明的一个方面，本发明提供一种将第一面板与第二面板相贴合的方法，所述第一面板和所述第二面板贴合后形成显示装置或显示装置的一部分，所述第一面板的表面积大于所述第二面板的表面积，其中，所述方法包括如下步骤：
在所述第一面板的四周设置可去除的保护条的步骤，使得所述保护条围成的区域的形状与所述第二面板的形状对应；
在所述保护条围成的区域内设置无色透明液体胶的步骤；
将所述第一面板与所述第二面板贴合的步骤；
将所述无色透明液体胶固化的步骤；以及
去除所述保护条的步骤。
优选地，所述在所述第一面板的四周设置可去除的保护条的步骤包括：在所述第一面板的表面的边缘部分上设置可去除的保护条。
优选地，所述第一面板为触控面板，所述第二面板为显示模组；或者
所述第一面板为显示模组，所述第二面板为触控面板；或者
所述第一面板为保护盖板，所述第二面板为液晶盒或设置有触控传感器的触控玻璃面板；或者
所述第一面板为液晶盒或设置有触控传感器的触控玻璃面板；所述第二面板为保护盖板。
优选地，在所述保护条围成的区域内设置的无色透明液体胶的体积大于未填充无色透明液体胶的情况下所述第一面板和所述第二面板贴合后形成的空腔的容积。
优选地，所述第二面板为具有四个倒角的面板，所述第一面板上设置有按键，所述第二面板上与所述按键对应的一侧形成有凹槽，且该凹槽的内边缘的形状与所述按键的外边缘的形状相同或相似。
优选地，利用狭缝涂布的方式在所述保护条围成的区域内设置无色透明液体胶。
优选地，利用点胶的方式在所述保护条围成的区域内设置无色透明液体胶。
优选地，所述方法还包括在所述保护条围成的区域内设置无色透明液体胶的步骤与将所述第一面板与所述第二面板贴合的步骤之间进行的：
对所述无色透明液体胶进行预固化的步骤。
优选地，所述方法还包括在将所述第一面板与所述第二面板贴合的步骤之后进行的：
对所述无色透明液体胶进行脱泡的步骤。
优选地，去除所述保护条的步骤在将所述第一面板与所述第二面板贴合的步骤和对所述无色透明液体胶进行脱泡的步骤之间进行。
优选地，所述方法还包括在所述第一面板的四周设置可去除的保护条的步骤之前进行的：
对所述第一面板和所述第二面板进行清洁处理的步骤。
优选地，所述对所述第一面板和所述第二面板进行清洁处理的步骤包括：对所述第一面板和所述第二面板分别进行等离子清洗。
优选地，所述第一面板为触控面板，所述第二面板为显示模组，所述第一面板包括第一面板本体和环绕设置在该第一面板本体表面的边缘部分上的黑矩阵，所述保护条设置在所述黑矩阵上。
优选地，在所述第一面板的四周设置可去除的保护条的步骤中：
所述保护条为可剥胶，通过印刷的方式将所述保护条设置在所述第一面板的四周；或者
所述保护条为胶带，通过贴附的方式将所述保护条设置在所述第一面板的四周。
作为本发明的另一个方面，提供一种显示装置，其中，所述显示装置包括利用本发明所述的方法贴合在一起的第一面板和第二面板。
在本发明所提供的方法中，即便在所述保护条围成的区域内设置所述无色透明液体胶的步骤中发生溢胶现象，和/或在将第一面板与第二面板贴合的过程中发生溢胶现象，溢出的胶最终会堆积在能够被拆除的保护条上，因此当无色透明液体胶固化以将第一面板和第二面板粘结在一起之后，在去除保护条的同时，就可以去除该保护条上的溢胶。由此可知，利用本发明所提供的方法得到的显示装置或显示装置的一部分上不会出现溢胶等缺陷。
附图说明
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：
图1是本发明所提供的将第一面板与第二面板相贴合的方法的流程图；
图2是在第一面板上设置保护条后的主视图；
图3是图2中所示的结构的俯视图；
图4是图2中所示的结构中的保护条的俯视图；
图5是利用狭缝涂布的方式在图3中所示的结构上设置无色透明液体胶后的俯视图；
图6是图5中所示的结构的主视图；
图7是利用点涂的方式在图3中所示的结构上设置无色透明液体胶后的俯视图；
图8是图7中所示的结构的主视图；
图9是将第一面板和第二面板贴合后形成的结构的主视图；
图10是去除图9中所示的结构中的保护条后形成的显示装置或显示装置的一部分的主视图；
图11是第二面板的俯视图；以及
图12是图10中所示的显示装置或显示装置的一部分的俯视图。
附图标记说明
100：第一面板                110：第一面板本体
120：黑矩阵                  210：保护条
2201、2202：无色透明液体胶
220＇：固化后的无色透明液体胶
300：第二面板                100a：按键
210a：凸起
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
如图1所示，作为本发明的一个方面，本发明提供一种将第一 面板100与第二面板300(参见图10)相贴合的方法，第一面板100和第二面板300贴合后形成显示装置或显示装置的一部分，第一面板100的表面积大于第二面板300的表面积，其中，所述方法包括如下步骤：
在第一面板100的四周设置可去除的保护条210的步骤，优选地，在第一面板100的表面的边缘部分上设置可去除的保护条210(如图2和图3所示)，该保护条210围成的区域的形状与第二面板300的形状对应(保护条210的形状如图2至图4所示，第二面板300的形状如图11所示)；
在保护条210围成的区域内设置无色透明液体胶2201(如图5和图6所示)或无色透明液体胶2202(如图7和图8所示)的步骤；
将第一面板100与第二面板300贴合(如图9所示)的步骤；
将无色透明液体胶2201或2202固化的步骤，将无色透明液体胶2201或2202固化后，在第一面板100和第二面板300之间形成固化后的无色透明液体胶220＇；以及
去除保护条210的步骤。去除保护条210后形成的显示装置或显示装置的一部分的结构如图10所示。
在本发明所提供的方法中，在保护条210围成的区域内设置无色透明液体胶的步骤中有可能会发生溢胶现象(如图6所示)，在将第一面板100与第二面板300贴合的过程中也可能会发生溢胶现象(如图9所示)，由于在无色透明液体胶2201或2202周围设置了保护条210，因此，无色透明液体胶2201或2202会溢出在保护条210上(如图6和图9所示)。当无色透明液体胶2201或2202固化以将第一面板100和第二面板300粘结在一起之后，在去除保护条210的同时，还可以去除该保护条210上的溢胶。由此可知，利用本发明所提供的方法得到的显示装置或显示装置的一部分上不会出现溢胶等缺陷。
并且，在本发明中，第一面板100和第二面板300通过无色透明液体胶2201或2202的固化而互相粘结，因此，第一面板100和第二面板300之间不会出现气泡。由此可知，利用本发明所提供的方法 得到的显示装置或显示装置的一部分具有较好的光学性能。
总而言之，利用本发明所提供的方法将第一面板和第二面板贴合在一起可以提高所获得的显示装置或显示装置的一部分的良率。
在图2至图10中所示的实施方式中，由于第一面板100的表面积大于第二面板300的表面积，将保护条210设置在第一面板100上，且第二面板300的形状与保护条210围成的区域的形状相对应，因此在将第一面板100与第二面板300相贴合后，将保护条210去除时不会影响第二面板300与第一面板100之间的粘结性能。
在本发明中，第一面板100和第二面板300粘结在一起后形成显示装置或显示装置的一部分。当第一面板100和第二面板300粘结在一起后形成显示装置时，第一面板100可以为触控面板，第二面板300可以为显示模组，反之亦可。当第一面板100和第二面板300粘结在一起后形成显示装置的一部分时，该显示装置的一部分可以为显示面板或触控面板，因此，第一面板100可以为液晶盒或设置有触控传感器的触控玻璃面板，第二面板300可以为保护盖板(例如，玻璃盖板)，反之亦可。
为了确保最终形成的显示装置或显示装置的一部分中不存在缺胶缺陷，优选地，在保护条210围成的区域内设置的无色透明液体胶2201或2202的体积大于未填充无色透明液体胶的情况下第一面板100和第二面板300贴合后形成的空腔的容积。即，设置的无色透明液体胶2201或2202的量大于未填充无色透明液体胶的情况下第一面板100和第二面板300贴合后形成的空腔能够容纳的量。在设置了无色透明液体胶2201或2202并将第一面板100和第二面板300贴合之后，多余的无色透明液体胶从第一面板100和第二面板300之间的空腔中溢出并堆积在保护条210上，从而可以确保第一面板100和第二面板300之间的空腔内不会出现缺胶的缺陷。拆除保护条210时，可以将堆积在保护条210上的溢胶一同去除，也不会产生褶皱等其他缺陷。
如上文中所述，保护条210围成的区域的形状与第二面板300的形状相对应。具体地，在将保护条210设置在第一面板100上之前， 可以对保护条210进行预处理，以使保护条210具有预定的形状，该预定的形状具体为，将保护条210设置在第一面板100上之后，保护条210的内边缘围成的区域的形状与第二面板300的外轮廓的形状相匹配。
在本发明中，第一面板100和第二面板300可以为形状规则的矩形面板，可以为形状不规则的大体上矩形面板，也可以为矩形面板之外的其他形状面板。
例如，作为本发明的一种实施方式，如图11所示，第二面板300为具有四个倒角的矩形面板。如图12所示，第一面板100上设置有按键100a，在第一面板100与第二面板300相贴合后，第二面板300上与按键100a对应的一侧形成有凹槽，且该凹槽的内边缘的形状与按键100a的外边缘的形状相同或相似。相应地，如图4和图11所示，保护条210的内边缘围成的区域也具有与第二面板300的外轮廓相同的形状，即，保护条210上形成有朝向保护条210围成的区域的中部凸出的凸起210a。
在本发明中，对向保护条210围成的区域内设置无色透明液体胶2201或2202的具体方式并没有限制，例如，作为本发明的一种优选实施方式，可以利用狭缝涂布的方式在所述保护条210围成的区域内设置无色透明液体胶。如图5所示，利用狭缝涂布的方式可以在保护条210围成的区域内填满无色透明液体胶2201。利用狭缝涂布的方式可以使得无色透明液体胶2201的厚度均匀，并且狭缝涂布效率较高。
当然，本发明并不限于此，例如，还可以利用点胶的方式在保护条210围成的区域内设置无色透明液体胶。如图7和图8中所示，利用点胶的方式可以在保护条210围成的区域内的部分位置设置无色透明液体胶2202。
当然，本发明并不限于此，例如，还可以利用丝网印刷的方式在保护条210围成的区域内设置无色透明液体胶。
为了便于第一面板100和第二面板300之间的对位，优选地，所述方法还包括在保护条210围成的区域内设置无色透明液体胶的 步骤与将第一面板100与第二面板300贴合的步骤之间进行的：对所述无色透明液体胶进行预固化的步骤。
对无色透明液体胶进行预固化的方法有多种，具体可以根据无色透明液体胶的固化机制选择预固化的方法。例如，当无色透明液体胶为光固化胶时，可以利用光照的方式对无色透明液体胶进行预固化；当无色透明液体胶为热固化胶时，可以利用加热的方式对无色透明液体胶进行预固化。由于半固化的无色透明液体胶不会任意流动，因此将第一面板100和第二面板300进行对位时，半固化的无色透明液体胶不会粘在第二面板300上，从而不会影响对第二面板300位置的调节，有利于确保第一面板100和第二面板300之间精确的对位。
为了进一步避免第一面板100和第二面板300之间产生气泡，优选地，所述方法还包括在将第一面板100与第二面板300贴合的步骤之后进行的：对无色透明液体胶进行脱泡的步骤。具体地，可以将贴合在一起的第一面板100和第二面板300置入脱泡炉内进行加压加热，以消除在第一面板100和第二面板300贴合时残留在第二面板300和无色透明液体胶之间的空气。
在本发明中，对进行各个步骤的顺序并没有严格的限定，各个步骤的实际顺序可由实施者根据具体的产品要求以及生产实践确定。例如，上述脱泡步骤可以在将第一面板100与第二面板300贴合的步骤与将无色透明液体胶固化的步骤之间进行，可以在将无色透明液体胶固化的步骤与去除保护条210的步骤之间进行，也可以在去除保护条210的步骤之后进行。去除保护条210的步骤只要在将第一面板100和第二面板300贴合的步骤之后进行即可。为了进一步确保无色透明液体胶固化后不存在边缘缺陷，优选地，去除保护条210的步骤可以在对所述无色透明液体胶进行预固化的步骤之后进行。这是因为，对无色透明液体胶进行预固化之后，无色透明液体胶不再能够任意流动，从而在去除保护条210之后，半固化的无色透明液体胶的四周也不会出现波纹等不良缺陷。作为本发明的一种更优选的实施方式，去除保护条210的步骤在将第一面板100和第二面板300贴合的步骤和对无色透明液体胶进行脱泡的步骤之间进行，这是因为，在将 第一面板100和第二面板300贴合的过程中可能会有无色透明液体胶溢出，并且脱泡的过程中需要加压加热，这可能会使保护条210损坏。
为了确保第一面板100和第二面板300能够牢固地粘结在一起，优选地，所述方法还包括在将保护条210设置在第一面板100上之前进行的：对第一面板100和第二面板300进行清洁处理的步骤。例如，可以对第一面板100和第二面板300分别进行等离子清洗，以清除第一面板100和第二面板300上的杂质颗粒。
作为本发明的一种具体实施方式，第一面板100可以为触控面板，第二面板300可以为显示模组，且第一面板100为触控面板时，如图2和图3所示，第一面板100可以包括第一面板本体110和环绕设置在该第一面板本体110表面的边缘部分上的黑矩阵120，可以将保护条210设置在黑矩阵120上。容易理解的是，第一面板本体110设置有触控传感器，黑矩阵120用于覆盖触控传感器的引线。
在本发明中，对保护条的材质、设置保护条的具体方法以及保护条的具体形成方式并没有特殊的限定。
例如，作为本发明的一种具体实施方式，保护条可以由可剥胶制成，在所述第一面板的四周设置可去除的保护条的步骤中，可以通过印刷的方式形成所述保护条。
又例如，作为本发明的另一种具体实施方式，保护条可以为胶带，在所述第一面板的四周设置可去除的保护条的步骤中，可以通过贴附的方式将保护条设置在第一面板的四周。
作为本发明的另一个方面，提供一种利用本发明所提供的上述方法获得的显示装置，该显示装置包括利用本发明所提供的上述方法贴合在一起的第一面板和第二面板。
在本发明所提供的方法中，即便在所述保护条围成的区域内设置所述无色透明液体胶的步骤中发生溢胶现象，和/或在将第一面板与第二面板贴合的过程中发生溢胶现象，溢出的胶最终会堆积在能够被拆除的保护条上，因此当无色透明液体胶固化以将第一面板和第二面板粘结在一起之后，在去除保护条的同时，就可以去除该保护条上的溢胶。由此可知，利用本发明所提供的方法得到的显示装置或显示 装置的一部分上不会出现溢胶等缺陷。
应当理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也属于本发明的保护范围。

Claims (15)

  1. 一种将第一面板与第二面板相贴合的方法，所述第一面板和所述第二面板贴合后形成显示装置或显示装置的一部分，所述第一面板的表面积大于所述第二面板的表面积，其特征在于，所述方法包括如下步骤：
    在所述第一面板的四周设置可去除的保护条的步骤，使得所述保护条围成的区域的形状与所述第二面板的形状对应；
    在所述保护条围成的区域内设置无色透明液体胶的步骤；
    将所述第一面板与所述第二面板贴合的步骤；
    将所述无色透明液体胶固化的步骤；以及
    去除所述保护条的步骤。
  2. 根据权利要求1所述的方法，其特征在于，所述在所述第一面板的四周设置可去除的保护条的步骤包括：在所述第一面板的表面的边缘部分上设置可去除的保护条。
  3. 根据权利要求1所述的方法，其特征在于，
    所述第一面板为触控面板，所述第二面板为显示模组；或者
    所述第一面板为显示模组，所述第二面板为触控面板；或者
    所述第一面板为保护盖板，所述第二面板为液晶盒或设置有触控传感器的触控玻璃面板；或者
    所述第一面板为液晶盒或设置有触控传感器的触控玻璃面板；所述第二面板为保护盖板。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，在所述保护条围成的区域内设置的无色透明液体胶的体积大于未填充无色透明液体胶的情况下所述第一面板和所述第二面板贴合后形成的空腔的容积。
  5. 根据权利要求1-3中任一项所述的方法，其特征在于，所述第二面板为具有四个倒角的面板，所述第一面板上设置有按键，所述第二面板上与所述按键对应的一侧形成有凹槽，且该凹槽的内边缘的形状与所述按键的外边缘的形状相同或相似。
  6. 根据权利要求4所述的方法，其特征在于，利用狭缝涂布的方式在所述保护条围成的区域内设置无色透明液体胶。
  7. 根据权利要求4所述的方法，其特征在于，利用点胶的方式在所述保护条围成的区域内设置无色透明液体胶。
  8. 根据权利要求1-3中任一项所述的方法，其特征在于，所述方法还包括在所述保护条围成的区域内设置无色透明液体胶的步骤与将所述第一面板与所述第二面板贴合的步骤之间进行的：
    对所述无色透明液体胶进行预固化的步骤。
  9. 根据权利要求1-8中任一项所述的方法，其特征在于，所述方法还包括在将所述第一面板与所述第二面板贴合的步骤之后进行的：
    对所述无色透明液体胶进行脱泡的步骤。
  10. 根据权利要求9所述的方法，其特征在于，去除所述保护条的步骤在将所述第一面板与所述第二面板贴合的步骤和对所述无色透明液体胶进行脱泡的步骤之间进行。
  11. 根据权利要求1-10中任一项所述的方法，其特征在于，所述方法还包括在所述第一面板的四周设置可去除的保护条的步骤之前进行的：
    对所述第一面板和所述第二面板进行清洁处理的步骤。
  12. 根据权利要求11所述的方法，其特征在于，所述对所述第一面板和所述第二面板进行清洁处理的步骤包括：对所述第一面板和所述第二面板分别进行等离子清洗。
  13. 根据权利要求1或2所述的方法，其特征在于，所述第一面板为触控面板，所述第二面板为显示模组，所述第一面板包括第一面板本体和环绕设置在该第一面板本体表面的边缘部分上的黑矩阵，所述保护条设置在所述黑矩阵上。
  14. 根据权利要求1-13中任一项所述的方法，其特征在于，在所述第一面板的四周设置可去除的保护条的步骤中：
    所述保护条为可剥胶，通过印刷的方式将所述保护条设置在所述第一面板的四周；或者
    所述保护条为胶带，通过贴附的方式将所述保护条设置在所述第一面板的四周。
  15. 一种显示装置，其特征在于，所述显示装置包括利用权利要求1至14中任一项所述的方法贴合在一起的第一面板和第二面板。
PCT/CN2015/074362 2014-10-28 2015-03-17 将第一面板与第二面板相贴合的方法和显示装置 Ceased WO2016065802A1 (zh)

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