WO2018196272A1 - 一种触控面板、显示装置及触控面板的制作方法 - Google Patents
一种触控面板、显示装置及触控面板的制作方法 Download PDFInfo
- Publication number
- WO2018196272A1 WO2018196272A1 PCT/CN2017/102944 CN2017102944W WO2018196272A1 WO 2018196272 A1 WO2018196272 A1 WO 2018196272A1 CN 2017102944 W CN2017102944 W CN 2017102944W WO 2018196272 A1 WO2018196272 A1 WO 2018196272A1
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- WIPO (PCT)
- Prior art keywords
- touch panel
- conductive
- foam
- array substrate
- polarizer
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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
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to a touch panel, a display device, and a method of fabricating the touch panel.
- touch panels for touch input are widely used in televisions, mobile phones, portable terminals, and other display devices, in which the touch electrodes are embedded in the interior of the touch panel.
- the touch panel (FIC, Full In cell) can make the touch panel lighter and thinner. Therefore, the in-cell touch panel is valued by major manufacturers.
- the in-cell touch panel has the touch electrodes disposed inside the liquid crystal cell formed by the array substrate and the color film substrate; in order to prevent external static electricity, the external touch panel is usually plated on the upper surface of the color film substrate.
- the conductive layer is usually made of ITO (Indium Tin Oxide) material. The conductive layer is connected to the silver paste on the array substrate, and is connected to the ground through the silver paste point to perform static electricity to the outside. freed.
- the prior art uses a conductive layer and a silver paste point method to prevent external static electricity from injuring the in-cell touch panel, because the touch electrode of the in-cell touch panel
- the inside of the liquid crystal cell formed by the array substrate and the color film substrate is arranged, and the conductive layer is connected to the ground end.
- a touch signal is generated, a shielding layer is formed, and the touch signal is shielded, so that the finger and the touch electrode are There is no capacitance between them, which causes the touch function of the in-cell touch panel to fail. Therefore, the static electricity cannot be passed through the conductive layer and the silver paste point, and the static electricity directly acts on the in-cell touch panel, which easily causes damage to the in-cell touch panel, and makes the anti-static of the in-cell touch panel.
- Ability is affected.
- the present disclosure provides a touch panel, a display device, and a method for manufacturing the touch panel, so as to solve the problem that the static electricity of the prior art is easy to cause damage to the touch panel.
- a touch panel including an array substrate and a color filter substrate disposed on the cartridge, and a polarizer on the color filter substrate, on the polarizer
- the surface of the array substrate is provided with a grounding point on the surface of the color filter substrate, and the conductive adhesive foam is attached to the grounding point and connected to the high-resistance optical adhesive.
- the conductive adhesive foam is attached to the uncovered area of the polarizer of the color filter substrate; and the high-impedance optical adhesive at least partially covers the conductive adhesive foam located in the uncovered area of the polarizer.
- the grounding point is connected to the grounding end of the array substrate, and the grounding end of the array substrate is connected to the grounding end of the flexible circuit board corresponding to the touch panel.
- the conductive adhesive foam comprises a foam strip and a conductive portion; the conductive portion comprises a conductive cloth and a conductive strip, or comprises a conductive paper and a conductive strip.
- the thickness of the conductive portion is the same as the thickness of the polarizer.
- the material of the conductive strip comprises silicone rubber.
- the silicone rubber comprises any one of silver plating, silver plating, silver plating, silver, graphite nickel plating, nickel silver plating, low density silver, high density silver, pure nickel, and carbon black. Fine conductive particles.
- the impedance of the high-impedance optical glue is 1E+8 ⁇ to 1E+10 ⁇ .
- the touch panel further includes a cover plate that is attached to the high-resistance optical adhesive.
- the array substrate is a low temperature polysilicon array substrate.
- the touch panel comprises an in-cell touch panel.
- the present disclosure also discloses a display device including the above touch panel.
- the present disclosure further discloses a method for fabricating a touch panel, the touch panel comprising an array substrate and a color filter substrate disposed on the cartridge, and a polarizer disposed on the color filter substrate, wherein A high-resistance optical adhesive is disposed on the polarizer; the array substrate is provided with a grounding point on a surface of the color filter substrate, and a conductive adhesive foam is attached to the grounding point, and the high-impedance optics is The glue is connected, and the method comprises:
- the laminated cover is pressed against the polarizer with a high-impedance optical adhesive.
- the conductive adhesive foam is attached to the uncovered area of the polarizer of the color filter substrate; and the high-impedance optical adhesive at least partially covers the conductive adhesive foam located in the uncovered area of the polarizer.
- the grounding point is connected to the grounding end of the array substrate, and the array substrate is connected The ground end is connected to the ground end of the flexible circuit board corresponding to the touch panel.
- the conductive adhesive foam comprises a foam strip and a conductive portion; the conductive portion comprises a conductive cloth and a conductive strip, or comprises a conductive paper and a conductive strip.
- the thickness of the conductive portion is the same as the thickness of the polarizer.
- the material of the conductive strip comprises silicone rubber.
- the silicone rubber comprises any one of silver plating, silver plating, silver plating, silver, graphite nickel plating, nickel silver plating, low density silver, high density silver, pure nickel, and carbon black. Fine conductive particles.
- the impedance of the high-impedance optical glue is 1E+8 ⁇ to 1E+10 ⁇ .
- the array substrate is a low temperature polysilicon array substrate.
- the touch panel comprises an in-cell touch panel.
- FIG. 1 is a schematic structural view of a touch panel according to an embodiment of the present disclosure
- FIG. 2 shows a plan view of a touch panel of an embodiment of the present disclosure
- FIG. 3 is a flow chart showing a method of fabricating a touch panel according to Embodiment 3 of the present disclosure
- FIG. 4 is a schematic diagram showing the fabrication of a touch panel of an embodiment of the present disclosure
- FIG. 5 shows a second schematic diagram of the fabrication of the touch panel of the embodiment of the present disclosure
- FIG. 6 shows a schematic view of attachment of a conductive foam of an embodiment of the present disclosure
- FIG. 7 shows a third schematic diagram of the fabrication of the touch panel of the embodiment of the present disclosure.
- FIG. 1 a schematic structural view of a touch panel of an embodiment of the present disclosure is shown.
- the touch panel includes an array substrate 15 and a color filter substrate 14 disposed on the color filter substrate, and a polarizer 13 disposed on the color filter substrate 14.
- a high-resistance optical adhesive 12 is disposed above the polarizer 13 .
- the surface of the array substrate 15 facing the color filter substrate 14 is provided with a grounding point, and the conductive adhesive foam 16 is attached to the grounding point and connected to the high-resistance optical adhesive 12.
- the grounding point can be set at the position of the original silver paste point, and the grounding point is connected to the grounding end of the array substrate 15, as shown in FIG. 1 as GND (grounding end), and the grounding end of the array substrate 15 corresponds to the touch panel.
- the ground terminals of the flexible circuit board are connected.
- the touch panel may further include a cover 11 that is attached to the high-resistance optical adhesive 12 to improve the sealing of the touch panel.
- the static electricity generated outside the touch panel is guided to the conductive adhesive foam 16 through the high-resistance optical adhesive 12 through the connection of the high-impedance optical adhesive 12, the conductive adhesive foam 16 and the grounding point. Then, the conductive adhesive foam 16 is drained to the grounding point of the array substrate 15, and then grounded to the ground end of the array substrate 15, and grounded through the grounding end of the flexible circuit board to form an electrostatic conduction path to protect the internal structure of the touch panel. Prevents static electricity from hitting the touch panel and improves the antistatic capability of the touch panel.
- the conductive adhesive foam 16 is attached to the uncovered area of the polarizer 13 of the color filter substrate 14, and the high-resistance optical adhesive 12 at least partially covers the uncovered area of the polarizer 13.
- the conductive adhesive foam 16 is on.
- the high-impedance optical glue is in contact with the conductive foam portion to improve the electrostatic conductivity.
- the optical adhesive can also be described as OCA (Optically Clear Adhesive), and the impedance of the high-impedance optical adhesive is 1E+8 ⁇ to 1E+10 ⁇ .
- OCA Optically Clear Adhesive
- the conductive rubber foam comprises a foam strip and a conductive portion; the conductive portion comprises a conductive cloth and a conductive strip. Or include conductive paper and conductive tape.
- the thickness of the conductive portion is the same as the thickness of the polarizer 13, and the convex portion of the conductive portion is prevented from causing the bonding bubble.
- the conductive adhesive foam comprises a foam strip 161 and a conductive strip 163 , 162 which may be a conductive cloth or a conductive paper.
- the conductive strip is attached to the lower surface of the conductive cloth 162, and the conductive strip existing in the lower surface portion is connected to the grounding point.
- the conductive strip is also adhered on the upper surface of the conductive cloth 162, and the upper surface is attached.
- the conductive strip existing on the surface is connected to the high-impedance optical glue 12.
- the material of the conductive strip includes silicone rubber, which includes aluminum silver plating, glass fiber silver plating, copper silver plating, silver, graphite nickel plating, nickel silver plating, low density silver, high density silver, pure nickel, carbon black. Any of the fine conductive particles. By uniformly depositing fine conductive particles of any one of aluminum silver plating, glass fiber silver plating, copper silver plating, silver, graphite nickel plating, nickel silver plating, low density silver, high density silver, pure nickel, carbon black In the rubber, fine conductive particles are brought into contact by pressure to achieve good electrical conductivity.
- the conductive strip should have good adhesion and facilitate adhesion with conductive cloth or conductive paper. Because silicone rubber has good water vapor sealing performance, it can be filled by adding conductive particles in silicone rubber to form a filled conductive strip. The original water vapor sealing performance of silicone rubber has high conductivity, and also has good electromagnetic compatibility shielding and environmental sealing ability.
- FIG. 2 a plan view of a touch panel of an embodiment of the present disclosure is shown.
- 11 is a cover plate
- 12 is a high-impedance optical glue
- 13 is a polarizer
- 14 is a color film substrate
- 15 is an array substrate
- 16 is a conductive foam
- 151 and 152 are on the array substrate 15.
- Grounding point. The grounding point can be set at the position of the original silver paste point, and the grounding point is connected to the grounding end of the array substrate 15, as shown in FIG. 2, the grounding end of the array substrate 15 and the grounding end of the flexible circuit board corresponding to the touch panel. Connected. Wherein, there is a grounding end on each side of the array substrate.
- the static electricity generated outside the touch panel is guided to the conductive adhesive foam 16 through the high-resistance optical adhesive 12 through the connection of the high-impedance optical adhesive 12, the conductive adhesive foam 16 and the grounding point. Then, the conductive adhesive foam 16 is drained to the grounding point of the array substrate 15, and then grounded to the ground end of the array substrate 15, and grounded through the ground end of the flexible circuit board to form an electrostatic conduction path, including the internal structure of the touch panel. Prevents static electricity from hitting the touch panel and improves the antistatic capability of the touch panel.
- the array substrate is a low temperature polysilicon array substrate
- the touch panel comprises an in-cell touch panel.
- the low temperature polysilicon array substrate can also be described as an LTPS (Low Temperature Poly Silicon) array substrate. Since the in-cell touch panel has the touch electrodes disposed inside the liquid crystal cell formed by the array substrate and the color film substrate, and through the connection of the high-impedance optical glue, the conductive adhesive foam and the grounding point, an electrostatic conduction path is formed to ensure The touch function of the in-cell touch panel is normal, and the static damage to the in-cell touch panel is prevented, and the antistatic capability of the in-cell touch panel is improved.
- the touch panel may also include an external plug-in type.
- the touch panel can also prevent the electrostatic damage caused by the external touch panel and improve the antistatic capability of the external touch panel.
- conductive glue foam can not only include touch panels, but also can guide static electricity, so that foaming effect double, saving time and cost.
- a high-impedance optical adhesive is disposed on the polarizer of the touch panel, and a grounding point is disposed on the surface of the array substrate of the touch panel facing the color filter substrate to attach the conductive adhesive foam. At the grounding point, it is connected to a high-impedance optical glue.
- high-impedance optical glue conductive glue foam and grounding point, an electrostatic conduction path is formed to prevent the static damage to the touch panel and improve the antistatic capability of the touch panel; the conductive rubber foam replaces the original silver paste. , reducing foreign matter caused by process silver paste debris, reducing the ratio of bonding foreign matter, improving the yield of the touch panel; and the conductive adhesive foam attaching process is simple, only need to be aligned, no coating process is difficult, Effectively promote module automation.
- the embodiment of the present disclosure further discloses a display device, including the above touch panel, the touch panel includes an array substrate and a color film substrate disposed on the box, and a polarizer disposed on the color filter substrate, and the polarizer is disposed above the polarizer.
- the touch panel includes an array substrate and a color film substrate disposed on the box, and a polarizer disposed on the color filter substrate, and the polarizer is disposed above the polarizer.
- There is a high-impedance optical adhesive and the array substrate is provided with a grounding point on the surface of the color filter substrate, and the conductive adhesive foam is attached to the grounding point and connected to the high-resistance optical adhesive.
- touch panel For a detailed description of the touch panel, reference may be made to the description of the first embodiment, which is not described in detail in this embodiment.
- the display device includes a touch panel.
- the high-impedance optical glue is disposed above the polarizer of the touch panel, and a grounding point is disposed on the surface of the array substrate of the touch panel facing the color filter substrate.
- the conductive adhesive foam is attached to the grounding point and connected to the high-impedance optical adhesive.
- a flow chart of a method for fabricating a touch panel according to Embodiment 3 of the present disclosure may specifically include the following steps:
- Step 301 attaching a conductive adhesive foam to a grounding point on the surface of the array substrate facing the color filter substrate, and attaching the conductive adhesive foam to a position connected to the high-resistance optical adhesive.
- the conductive adhesive foam is attached to the grounding point on the surface of the array substrate facing the color filter substrate, and the conductive adhesive foam is attached to the position connected to the high-resistance optical adhesive to form static electricity. Part of the pathway.
- FIG. 4 one of the schematic diagrams of the fabrication of the touch panel of the embodiment of the present disclosure is shown.
- the touch panel includes an array substrate 15 and a color filter substrate 14 disposed on the cartridge, and a polarizer 13 on the color filter substrate 14.
- the conductive adhesive foam 16 is attached in the direction of the arrow in FIG. 4, and the conductive adhesive strip 163 existing in the lower surface portion of the conductive adhesive foam 16 corresponds to the grounding point 151 or 152 on the array substrate 15.
- the conductive adhesive foam can be easily attached to the grounding point.
- the grounding point can be set at the position of the original silver paste point.
- the grounding point is connected to the grounding end of the array substrate, as shown in Figure 4, GND, array.
- the ground end of the substrate is connected to the ground end of the flexible circuit board corresponding to the touch panel.
- the conductive adhesive foam comprises a foam strip 161 and a conductive portion.
- the conductive portion comprises a conductive cloth 162 and a conductive strip 163, or comprises a conductive paper 162 and a conductive strip 163.
- the 162 may be a conductive cloth or a conductive paper.
- FIG. 5 a second schematic diagram of the fabrication of the touch panel of the embodiment of the present disclosure is shown.
- the conductive strip 163 existing in the lower surface portion of the conductive adhesive foam 16 is attached to the grounding point 151 or 152 on the array substrate 15, the remaining conductive of the conductive adhesive foam 16 is adhered.
- the portion is attached to the uncovered region of the polarizer 13 of the color filter substrate 14 in the direction of the arrow in FIG. 5 to facilitate subsequent connection with the high-impedance optical adhesive.
- the conductive part of the conductive adhesive foam comprises a conductive cloth, a conductive strip, or a conductive paper, a conductive strip; the thickness of the conductive part and the polarizer The thickness is the same, avoiding the convexity of the conductive parts to cause the bonding bubbles.
- FIG. 6 shows a schematic view of the attachment of the conductive glue foam of the embodiment of the present disclosure.
- the remaining conductive portion of the conductive foam 16 is folded from the position A to the position B in the direction of the arrow in FIG. 6, and the position B is the uncovered area of the polarizer of the color filter substrate.
- Step 302 pressing the bonded cover plate with the high-resistance optical adhesive on the polarizer.
- the cover is firstly bonded to the high-resistance optical adhesive, the bonded cover and the high-resistance optical adhesive are pressed onto the polarizer, and the pressed touch panel is placed.
- the pressurized chamber the bubbles generated during the pressing process are pressed by the high pressure to finally obtain the touch panel.
- FIG. 7 a third schematic diagram of the fabrication of the touch panel of the embodiment of the present disclosure is shown.
- the high-impedance optical adhesive 12 at least partially covers the conductive adhesive foam 16 located in the uncovered area of the polarizer 13.
- the high-impedance optical adhesive is in contact with the conductive adhesive foam portion to improve the electrostatic conductivity.
- the impedance of the high-impedance optical adhesive is 1E+8 ⁇ to 1E+10 ⁇ .
- the static electricity generated outside the touch panel is guided to the conductive adhesive foam 16 through the high-resistance optical adhesive 12 through the connection of the high-impedance optical adhesive 12, the conductive adhesive foam 16 and the grounding point. Then, the conductive adhesive foam 16 is drained to the grounding point of the array substrate 15, and then grounded to the ground end of the array substrate 15, and grounded through the grounding end of the flexible circuit board to form an electrostatic conduction path to protect the internal structure of the touch panel. Prevents static electricity from hitting the touch panel and improves the antistatic capability of the touch panel.
- the array substrate is a low temperature polysilicon array substrate
- the touch panel comprises an in-cell touch panel. Since the in-cell touch panel has the touch electrodes disposed inside the liquid crystal cell formed by the array substrate and the color film substrate, and through the connection of the high-impedance optical glue, the conductive adhesive foam and the grounding point, an electrostatic conduction path is formed to ensure The touch function of the in-cell touch panel is normal, and the static damage to the in-cell touch panel is prevented, and the antistatic capability of the in-cell touch panel is improved; in addition, the touch panel is also It can include an external touch panel, which can also prevent static damage caused by static external touch panels and improve the antistatic capability of the external touch panel.
- a conductive adhesive foam is attached on a grounding point of the array substrate toward a surface of the color filter substrate, and the conductive adhesive foam is attached to the high-resistance optical adhesive.
- the bonded cover is pressed against the polarizer with a high-impedance optical adhesive.
- high-impedance optical glue, conductive glue foam and grounding point an electrostatic conduction path is formed to prevent the static damage to the touch panel and improve the antistatic capability of the touch panel; the conductive rubber foam replaces the original silver paste. , reducing foreign matter caused by process silver paste debris, reducing the ratio of bonding foreign matter, improving the yield of the touch panel; and the conductive adhesive foam attaching process is simple, only need to be aligned, no coating process is difficult, Effectively promote module automation.
- a high-impedance optical adhesive is disposed on the polarizer of the touch panel, and a grounding point is disposed on the surface of the array substrate of the touch panel facing the color filter substrate, and the conductive adhesive foam is attached to the grounding point, and is high.
- the impedance optical glue is connected. Through the connection of high-impedance optical glue, conductive glue foam and grounding point, an electrostatic conduction path is formed to prevent the static damage to the touch panel and improve the antistatic capability of the touch panel; the conductive rubber foam replaces the original silver paste. , reducing foreign matter caused by process silver paste debris, reducing the ratio of bonding foreign matter, improving the yield of the touch panel; and the conductive adhesive foam attaching process is simple, only need to be aligned, no coating process is difficult, Effectively promote module automation.
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Abstract
Description
Claims (22)
- 一种触控面板,其包括对盒设置的阵列基板和彩膜基板,以及位于所述彩膜基板上的偏光片,其中所述偏光片上方设置有高阻抗光学胶,所述阵列基板朝向所述彩膜基板的表面上设有接地点,导电胶泡棉贴附在所述接地点上,并与所述高阻抗光学胶相连。
- 根据权利要求1所述的触控面板,其中所述导电胶泡棉贴附在所述彩膜基板的偏光片未覆盖区域;所述高阻抗光学胶至少部分覆盖位于所述偏光片未覆盖区域的导电胶泡棉上。
- 根据权利要求1所述的触控面板,其中所述接地点与所述阵列基板的接地端连接,所述阵列基板的接地端与所述触控面板对应的柔性电路板的接地端相连。
- 根据权利要求1所述的触控面板,其中所述导电胶泡棉包括泡棉条和导电部位;所述导电部位包括导电布和导电胶条,或者包括导电纸和导电胶条。
- 根据权利要求4所述的触控面板,其中所述导电部位的厚度与所述偏光片的厚度相同。
- 根据权利要求4所述的触控面板,其中所述导电胶条的材质包括硅橡胶。
- 根据权利要求6所述的触控面板,其中所述硅橡胶中包含铝镀银、玻璃纤维镀银、铜镀银、银、石墨镀镍、镍镀银、低密度银、高密度银、纯镍、碳黑中的任一种微细导电颗粒。
- 根据权利要求1所述的触控面板,其中所述高阻抗光学胶的阻抗为1E+8Ω至1E+10Ω。
- 根据权利要求1所述的触控面板,所述触控面板还包括盖板,所述盖板与所述高阻抗光学胶贴合。
- 根据权利要求1所述的触控面板,其中所述阵列基板为低温多晶硅阵列基板。
- 根据权利要求1-10任一项所述的触控面板,其中所述触控面板包括内嵌式触控面板。
- 一种显示装置,所述显示装置包括如权利要求1-11任一项所述的触控面板。
- 一种触控面板的制作方法,所述触控面板包括对盒设置的阵列基板和彩膜基板,以及位于所述彩膜基板上的偏光片,其中所述偏光片上方设置有高阻抗光学胶,所述阵列基板朝向所述彩膜基板的表面上设有接地点,导电胶泡棉贴附在所述接地点上,并与所述高阻抗光学胶相连,所述方法包括:将导电胶泡棉贴附在所述阵列基板朝向所述彩膜基板的表面上的接地点上,以及将所述导电胶泡棉贴附在与高阻抗光学胶相连的位置;将贴合好的盖板与高阻抗光学胶压合在所述偏光片上。
- 根据权利要求13所述的触控面板的制作方法,其中所述导电胶泡棉贴附在所述彩膜基板的偏光片未覆盖区域;所述高阻抗光学胶至少部分覆盖位于所述偏光片未覆盖区域的导电胶泡棉上。
- 根据权利要求13所述的触控面板的制作方法,其中所述接地点与所述阵列基板的接地端连接,所述阵列基板的接地端与所述触控面板对应的柔性电路板的接地端相连。
- 根据权利要求13所述的触控面板的制作方法,其中所述导电胶泡棉包括泡棉条和导电部位;所述导电部位包括导电布和导电胶条,或者包括导电纸和导电胶条。
- 根据权利要求16所述的触控面板的制作方法,其中所述导电部位的厚度与所述偏光片的厚度相同。
- 根据权利要求16所述的触控面板的制作方法,其中所述导电胶条的材质包括硅橡胶。
- 根据权利要求18所述的触控面板的制作方法,其中所述硅橡胶中包含铝镀银、玻璃纤维镀银、铜镀银、银、石墨镀镍、镍镀银、低密度银、高密度银、纯镍、碳黑中的任一种微细导电颗粒。
- 根据权利要求13所述的触控面板的制作方法,其中所述高阻抗光学胶的阻抗为1E+8Ω至1E+10Ω。
- 根据权利要求13所述的触控面板的制作方法,其中所述阵列基板为低温多晶硅阵列基板。
- 根据权利要求13-21任一项所述的触控面板的制作方法,其中所述触控面板包括内嵌式触控面板。
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| US11099703B1 (en) | 2018-11-12 | 2021-08-24 | Apple Inc. | Touch sensor panels with silver nanowire-based touch electrodes |
| WO2021254428A1 (zh) * | 2020-06-19 | 2021-12-23 | 维沃移动通信有限公司 | 导电泡棉和电子设备 |
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| CN107102461A (zh) | 2017-04-26 | 2017-08-29 | 京东方科技集团股份有限公司 | 一种触控面板、显示装置及触控面板的制作方法 |
| CN107894672A (zh) * | 2017-12-26 | 2018-04-10 | 信利光电股份有限公司 | 一种显示屏 |
| CN108957840B (zh) * | 2018-08-21 | 2021-09-21 | 京东方科技集团股份有限公司 | 一种显示模组、显示装置、偏光片及其制备方法 |
| CN109581767A (zh) * | 2019-01-16 | 2019-04-05 | 深圳市华星光电半导体显示技术有限公司 | 显示模组及显示装置 |
| CN110515232A (zh) * | 2019-09-02 | 2019-11-29 | 联想(北京)有限公司 | 显示面板、显示模组、电子设备和显示面板制备方法 |
| CN110517584B (zh) * | 2019-09-02 | 2022-02-01 | 京东方科技集团股份有限公司 | 显示模组、显示装置及显示模组的制备方法 |
| WO2021243718A1 (zh) * | 2020-06-05 | 2021-12-09 | 京东方科技集团股份有限公司 | 散热模组、显示组件和显示装置 |
| CN114995673A (zh) * | 2021-03-02 | 2022-09-02 | 群创光电股份有限公司 | 触控电子装置 |
| CN113075807A (zh) * | 2021-03-23 | 2021-07-06 | 武汉华星光电技术有限公司 | 显示面板 |
| CN113253506A (zh) * | 2021-05-26 | 2021-08-13 | 武汉华星光电技术有限公司 | 一种显示装置 |
| WO2024018433A1 (en) * | 2022-07-22 | 2024-01-25 | Promethean Limited | Interactive touch-screen display device with static charge dissipation and method of assembling the same |
| CN115561923B (zh) * | 2022-10-14 | 2025-07-22 | 信利光电仁寿有限公司 | 一种显示模组及其制作工艺 |
| US20260096622A1 (en) * | 2024-10-03 | 2026-04-09 | Msa Technology, Llc | Microshock Prevention Device |
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| CN107102461A (zh) | 2017-08-29 |
| US10732763B2 (en) | 2020-08-04 |
| US20200174613A1 (en) | 2020-06-04 |
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