WO2021248606A1 - 触控面板及触控显示装置 - Google Patents

触控面板及触控显示装置 Download PDF

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Publication number
WO2021248606A1
WO2021248606A1 PCT/CN2020/101087 CN2020101087W WO2021248606A1 WO 2021248606 A1 WO2021248606 A1 WO 2021248606A1 CN 2020101087 W CN2020101087 W CN 2020101087W WO 2021248606 A1 WO2021248606 A1 WO 2021248606A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
substrate
orthographic projection
touch panel
panel
Prior art date
Application number
PCT/CN2020/101087
Other languages
English (en)
French (fr)
Inventor
胡崇铭
郑净远
Original Assignee
惠州市华星光电技术有限公司
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 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Priority to US16/964,075 priority Critical patent/US20230251517A1/en
Publication of WO2021248606A1 publication Critical patent/WO2021248606A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present invention relates to the field of display technology, in particular to a touch panel and a touch display device.
  • touch display has become the focus of the industry.
  • the touch screen mainly includes a display panel and a touch panel, and under conditions such as strong light exposure, the touch panel will appear to reflect light from the touch metal lines in the touch panel, thereby reducing the overall display of the touch screen
  • the contrast ratio of the touch screen affects the display effect of the touch screen.
  • the protective cover and the touch substrate in the touch panel are combined by optical glue. The control requirements are high, and the yield rate of the combination of the protective cover and the touch substrate cannot be improved. At the same time, the labor cost is greatly increased due to the problem of cleaning residual glue or glue overflow.
  • the present application provides a touch panel and a touch display device to solve the technical problem that the reflection of the touch metal circuit in the existing touch display device causes the contrast of the overall display of the touch display device to decrease, which affects the display effect of the touch display device.
  • the present application provides a touch panel, including a packaging cover plate and a touch substrate disposed oppositely, and a connection layer is provided between the packaging cover plate and the touch substrate;
  • the touch substrate includes a substrate and a touch wiring layer disposed on a side of the substrate close to the packaging cover; a light shielding layer is provided on the side of the packaging cover close to the touch substrate;
  • the orthographic projection of the light shielding layer on the substrate at least partially covers the orthographic projection of the touch wiring layer on the substrate.
  • the touch wiring layer includes at least one metal wiring
  • the light-shielding layer includes at least one light-shielding strip corresponding to the metal wiring
  • the light-shielding strip is on the backing
  • the orthographic projection on the bottom at least partially covers the orthographic projection of the metal trace on the substrate.
  • the orthographic projection of the center line of the shading strip on the substrate overlaps the orthographic projection of the center line of the metal trace on the substrate.
  • the orthographic projection of the shading strip on the substrate overlaps the orthographic projection of the metal trace on the substrate.
  • connection layer includes a first sealant and a transparent filling layer
  • the packaging cover, the touch substrate, and the first frame are glued to form a first cavity, so The transparent filling layer is arranged in the first cavity.
  • the material of the transparent filling layer is liquid crystal.
  • the touch panel includes a touch display area and a non-display area arranged around the touch display area, the light shielding layer is located in the touch display area, and the packaging cover A side of the board close to the touch substrate is provided with a black retaining wall located in the non-display area, and the orthographic projection of the black retaining wall on the substrate covers the first sealant on the substrate On the orthographic projection; the light-shielding layer is made of the same material as the black wall, and the light-shielding layer and the black wall are integrally formed.
  • the package cover plate and the substrate have the same thickness.
  • the present application also provides a touch display device, including a display panel and the touch panel as described in the previous embodiment, the touch panel being arranged on one side of the display panel.
  • a second frame glue is provided between the display panel and the touch panel, and the display panel, the touch panel, and the second frame are glued to form a first frame.
  • Two cavities, the air pressure in the second cavity is lower than the atmospheric pressure outside the second cavity.
  • the display panel is curved in an arc shape, and the touch panel is arranged on the concave side of the display panel in the arc shape and is adapted to the shape of the touch panel .
  • the inside of the second cavity is vacuum.
  • the thickness of the touch panel is equal to the thickness of the display panel.
  • the touch wiring layer includes at least one metal wiring
  • the light-shielding layer includes at least one light-shielding strip corresponding to the metal wiring
  • the light-shielding strip is in the The orthographic projection on the substrate at least partially covers the orthographic projection of the metal trace on the substrate.
  • the orthographic projection of the center line of the shading bar on the substrate overlaps the orthographic projection of the center line of the metal trace on the substrate.
  • the orthographic projection of the shading bar on the substrate overlaps the orthographic projection of the metal trace on the substrate.
  • connection layer includes a first sealant and a transparent filling layer
  • the packaging cover, the touch substrate, and the first frame are glued to form a first cavity
  • the transparent filling layer is arranged in the first cavity.
  • the material of the transparent filling layer is liquid crystal.
  • the touch panel includes a touch display area and a non-display area arranged around the touch display area, the light shielding layer is located in the touch display area, and the package A side of the cover plate close to the touch substrate is provided with a black retaining wall located in the non-display area, and the orthographic projection of the black retaining wall on the substrate covers the first sealant on the lining Orthographic projection on the bottom;
  • the light-shielding layer is made of the same material as the black retaining wall, and the light-shielding layer and the black retaining wall are an integral structure.
  • the packaging cover and the substrate have the same thickness.
  • a light-shielding layer is provided on the package cover, and the orthographic projection of the light-shielding layer on the substrate at least partially covers the orthographic projection of the touch wiring layer on the substrate.
  • the light-shielding layer blocks the light reflected by the touch wiring layer, avoiding the phenomenon that the reflective light of the touch wiring layer in the touch panel reduces the contrast of the overall display of the touch display device, and improves the overall touch display device. display effect.
  • FIG. 1 is a schematic diagram of the structure of a touch panel in an embodiment of the application
  • FIG. 2 is a top view of a touch wiring layer in an embodiment of the application
  • FIG. 3 is a top view of the light-shielding layer in an embodiment of the application.
  • FIG. 4 is a schematic diagram of the first structure of the light shielding strip and the metal wiring in the embodiment of the application;
  • FIG. 5 is a schematic diagram of the second structure of the light shielding strip and the metal wiring in the embodiment of the application;
  • FIG. 6 is a schematic diagram of a third structure of the light shielding strip and the metal wiring in the embodiment of the application;
  • FIG. 7 is a schematic diagram of the first structure of the touch display device in an embodiment of the application.
  • FIG. 8 is a schematic diagram of a second structure of the touch display device in an embodiment of the application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be mechanically connected, it can be electrical connection or it can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be mechanically connected, it can be electrical connection or it can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • the "above” or “below” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or merely indicating that the level of the first feature is higher than that of the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the present application provides a touch panel 1, as shown in FIG. 1 to FIG. 6, comprising a package cover 11 and a touch substrate 12 disposed oppositely, and a package cover 11 and the touch substrate 12 are provided between There is a connection layer 13;
  • the touch substrate 12 includes a substrate 121 and a touch trace layer 122 disposed on a side of the substrate 121 close to the package cover 11; the package cover 11 is close to the touch substrate 12 A light-shielding layer 14 is provided on the side;
  • the orthographic projection of the light shielding layer 14 on the substrate 121 at least partially covers the orthographic projection of the touch wiring layer 122 on the substrate 121.
  • the touch panel 1 includes a packaging cover 11 and a touch substrate 12 that are arranged opposite to each other.
  • the touch substrate 12 includes a substrate 121 and is disposed on the substrate 121 close to the packaging cover.
  • the touch trace layer 122 on the side 11; and under conditions such as strong light, the touch trace layer 122 in the touch panel 1 will reflect light, thereby reducing the overall display contrast of the touch screen and affecting
  • the light-shielding layer 14 is provided on the package cover 11, and the orthographic projection of the light-shielding layer 14 on the substrate 121 at least partially covers the touch wiring layer 122 on the substrate 121
  • the front projection on the upper surface so as to realize the blocking of the light shielding layer 14 to the light reflected by the touch wiring layer 122, and avoid the contrast of the overall display of the touch-sensitive touch display device of the touch wiring layer 122 in the touch panel 1.
  • the reduced phenomenon improves the overall display effect of the touch display device.
  • the orthographic projection of the light-shielding layer 14 on the substrate 121 may partially cover the orthographic projection of the touch wiring layer 122 on the substrate 121, or it may completely cover The orthographic projection of the touch wiring layer 122 on the substrate 121; thereby at least partially blocking the reflected light of the touch wiring layer 122.
  • the material of the light-shielding layer 14 can be selected according to actual needs, and there is no limitation here.
  • the touch trace layer 122 includes at least one metal trace 1221
  • the light shielding layer 14 includes at least one light shield corresponding to the metal trace 1221 A strip 141
  • the orthographic projection of the shading strip 141 on the substrate 121 at least partially covers the orthographic projection of the metal trace 1221 on the substrate 121.
  • the touch wiring layer 122 is a patterned metal circuit, which may specifically include metal wiring 1221 such as transmitting electrodes and receiving electrodes.
  • the pattern of the light shielding layer 14 may be the same as The pattern of the touch wiring layer 122 is the same, and each metal wiring 1221 in the touch wiring layer 122 corresponds to the light shielding bar 141, so that as a whole, the touch Each of the metal traces 1221 in the trace control layer 122 is at least partially covered by the light shielding strip 141, so as to realize the uniformity of the light shielding layer 14 shielding the reflected light of the touch trace layer 122 as a whole.
  • the orthographic projection of the center line of the shading strip 141 on the substrate 121 and the center line of the metal trace 1221 are on the substrate 121
  • the orthographic projection overlaps; it is understandable that in one of the metal traces 1221 and the light shielding strip 141 corresponding to the metal traces 1221, the width of the light shielding strip 141 may be greater than, equal to, or less than the The width of the metal trace 1221, obviously, when the orthographic projection of the center line of the shading strip 141 on the substrate 121 overlaps with the orthographic projection of the center line of the metal trace 1221 on the substrate 121 No matter the width of the light-shielding strip 141 can be greater than, equal to, or less than the width of the metal trace 1221, a good display effect can be achieved.
  • the center line of the light-shielding strip 141 is placed on the substrate 121
  • the orthographic projection overlaps with the orthographic projection of the center line of the metal trace 1221 on the substrate 121, which can ensure that the shading strip 141 shields the middle of the metal trace 1221, although the metal trace 1221 is not There will still be reflections on both sides of the shield, but on the whole it presents light-dark-bright display stripes.
  • the overall metal is reduced. The resolution of the traces 1221 reflected light stripes.
  • this structure can also improve the contrast of the touch display device equipped with the touch panel 1; and, with this structure, the light shielding layer 14 does not affect the The overall penetration rate of the touch display device.
  • the width of the light-shielding strip 141 is greater than the width of the metal trace 1221, the orthographic projection of the center line of the light-shielding strip 141 on the substrate 121 is aligned with the metal trace 1221.
  • the widths of the parts are equal, so that the light-shielding strip 141 also has a certain blocking effect on the inclined reflected light of the metal trace 1221.
  • the width of the light-shielding strip 141 can be set according to actual needs.
  • connection layer 13 includes a first sealant 131 and a transparent filling layer 132, the package cover 11, the touch substrate 12, and the first sealant 131 Enclosed to form a first cavity 133, and the transparent filling layer 132 is disposed in the first cavity 133.
  • the protective cover plate and the touch substrate 12 in the touch panel 1 are combined by the optical glue full bonding method, but this kind of full bonding process requires a lot of dust-free level and control of the colloid.
  • the packaging cover plate 11 and the touch substrate 12 are combined Butt, the package cover 11 and the touch substrate 12 are bonded by a first sealant 131, and the package cover 11, the touch substrate 12, and the first sealant 131 are enclosed
  • the formed first cavity 133 is filled with a transparent filling layer 132, so that the touch panel 1 is formed into a box structure similar to the display panel, which prevents the protective cover and the touch substrate 12 from being fully bonded with optical glue.
  • the touch panel 1 is formed into a cell structure similar to the display panel, which can be based on the mature process of liquid crystal cell cell formation in the existing liquid crystal display panel, and the liquid crystal display panel can be manufactured.
  • the production of equipment and related materials is convenient for mass production.
  • the existing touch screen is mainly composed of a display panel and a touch panel 1 with a protective cover.
  • the protective cover is restricted by physical strengthening and has a thickness of at least 3.0mm, which is much larger than that of displays such as liquid crystal panels.
  • the thickness of the panel, in addition to the protective cover, the touch panel 1 also includes a touch substrate 12 and an optical adhesive layer for bonding the protective cover and the touch substrate 12 to further increase the thickness difference between the display panel and the touch panel 1.
  • the thinner display panel will bend and deform toward the touch substrate 12.
  • the touch panel 1 will also be set on the protective cover and the touch substrate.
  • the entire surface of the optical glue between the 12 is limited; in this embodiment, the package cover 11 and the touch substrate 12 are aligned, so that the package cover 11 and the touch substrate 12 pass through the first
  • the sealant 131 is bonded, and the first cavity 133 formed by the encapsulation cover 11, the touch substrate 12 and the first sealant 131 is filled with a transparent filling layer 132 to make the touch panel 1
  • the formation of a box structure similar to the display panel solves the problem of limited bending of the touch panel 1 caused by the use of a whole-surface optical adhesive bonding structure; in addition, it is obvious that the thinner the thickness of the touch panel 1, the easier it is to bend.
  • the touch panel 1 in the box structure can also greatly reduce the thickness of the touch panel 1 to avoid excessive bending and deformation of the display panel in the direction of the touch substrate 12 when the vacuum frame is attached.
  • the material of the transparent filling layer 132 is not limited on the basis of being transparent, such as transparent resin, liquid crystal and other materials.
  • the material of the transparent filling layer 132 is liquid crystal.
  • liquid crystal materials are more common in the application of liquid crystal display panels, which makes it easier to obtain materials for the production of the touch panel 1, and realize mass production at a lower cost; in addition, the material of the transparent filling layer 132 adopts liquid crystal, which is also It is more convenient for the touch panel 1 to be bent to form the touch panel 1 with a curved structure.
  • the touch panel 1 includes a touch display area 10 and a non-display area 20 arranged around the touch display area 10, and the light shielding layer 14 is located in the touch display area.
  • a side of the package cover 11 close to the touch substrate 12 is provided with a black barrier 15 located in the non-display area 20, and the black barrier 15 is on the substrate 121
  • the orthographic projection covers the orthographic projection of the first sealant 131 on the substrate 121; the material of the light-shielding layer 14 is the same as that of the black wall 15, and the light-shielding layer 14 is the same as the black
  • the barrier wall 15 is an integrally formed structure; obviously, the material of the light shielding layer 14 is set to be the same as the material of the black barrier wall 15, and the light shielding layer 14 and the black barrier wall 15 are formed as an integral structure; As a result, the black retaining wall 15 and the light-shielding layer 14 are manufactured by the same manufacturing process without additional manufacturing process steps, which greatly saves
  • the orthographic projection of the black barrier 15 on the touch substrate 12 covers the orthographic projection of the first sealant 131 on the touch substrate 12 ; That is, the black retaining wall 15 is arranged along the periphery of the package cover 11 close to one side of the touch substrate 12, and completely covers the first sealant 131, in the touch panel 1 and the display panel After the combination, it is also convenient for the black retaining wall 15 to block the light in the peripheral area of the touch panel 1.
  • the thickness of the packaging cover 11 and the substrate 121 are equal; it is understandable that, in addition, in the touch panel 1 adopting the box structure, the thickness of the packaging cover 11 The thickness can be much smaller than that of the existing protective cover plate with a thickness of at least greater than 3.0 mm.
  • the thickness of the package cover plate 11 can be less than 0.5 mm.
  • the touch substrate 12 includes a substrate 121 and is disposed on the substrate 121
  • the touch wiring layer 122 of the package cover 11 may be a glass substrate 121 with the same material and thickness as the substrate 121.
  • the package cover 11 may have a thickness of 0.4 mm Obviously, this kind of glass substrate material is more common in the application of the substrates on both sides of the display panel, which makes it easier to obtain materials for the production of the touch panel 1, and realizes mass production at a lower cost.
  • the present application also provides a touch display device, as shown in FIG. 7, which includes a display panel 2 and the touch panel 1 described in the previous embodiment, and the touch panel 1 is disposed on the side of the display panel 2.
  • a second sealant 3 is provided between the display panel 2 and the touch panel 1, and the display panel 2, the touch panel 1 and the second sealant 3 are enclosed to form a second In the cavity 4, the air pressure in the second cavity 4 is lower than the atmospheric pressure outside the second cavity 4.
  • a second sealant 3 is provided between the display panel 2 and the touch panel 1, and the display panel 2, the touch panel 1 and the second sealant 3 are enclosed to form a
  • the second cavity 4 the display panel 2 and the touch panel 1 are also in a boxed structure, and the display panel 2, the touch panel 1 and the second frame glue 3 are enclosed and formed
  • the air pressure in the second cavity 4 is lower than the atmospheric pressure outside the second cavity 4, so that on the basis of the second sealant 3 bonding the display panel 2 and the touch panel 1, further
  • the air pressure in the second cavity 4 is less than the atmospheric pressure outside the second cavity 4, and the pressure of the atmospheric pressure is used to make the display panel 2 and the touch panel 1 tightly combined.
  • the display panel The second cavity 4 between 2 and the touch panel 1 is in a vacuum state, that is, the display panel 2 and the touch panel 1 are closely connected by a vacuum frame to ensure that the display panel 2 and the touch panel 1 are closely connected.
  • the touch panel 1 is not easy to separate after subsequent use or bending into a curved display screen.
  • the distance between the display panel 2 and the touch panel 1 can be adjusted according to actual needs.
  • the display panel 2 and the touch panel 1 will have a facing second cavity 4 Slight bending deformation.
  • the display panel 2 and the touch panel 1 will be bent toward the second cavity 4 and then contact each other , And when the distance between the display panel 2 and the touch panel 1 is too large, the space of the second cavity 4 will be too large.
  • the process difficulty of vacuum frame attachment also increases the overall thickness of the touch display device. Specifically, in this embodiment, the distance between the display panel 2 and the touch panel 1 is set to 5um;
  • the difference between the thickness of the touch panel 1 and the thickness of the display panel 2 is obviously as small as possible. It can be understood that the thickness of the touch panel 1 is less than the thickness of the display panel 2 When the vacuum frame is attached, the difference between the thickness of the touch panel 1 and the thickness of the display panel 2 is obviously smaller, and all the forces of the touch panel 1 and the display panel 2 arranged relatively are more uniform, avoiding For example, when the thickness of the touch panel 1 is much greater than the thickness of the display panel 2, the display panel 2 is excessively bent and deformed toward the touch panel 1; specifically, the thickness of the touch panel 1 is similar to that of the display panel 1. The thickness of the display panel 2 is equal.
  • the display panel 2 is curved to form an arc-shaped curved surface structure
  • the touch panel 1 is disposed on the concave side of the arc-shaped display panel 2 and is in contact with the
  • the shape of the touch panel 1 is compatible; it is understandable that after the display panel 2 and the touch panel 1 are pasted by a vacuum frame, and then undergo a bending step, the display panel 2 and the touch panel 1
  • the whole body can be bent to one side to form a curved screen; it is worth noting that when the display panel 2 and the touch panel 1 are integrally bent to one side to form a curved screen, the display panel 2 and the aforementioned
  • the spacing between the touch panels 1 is set to be narrow.
  • the spacing between the display panel 2 and the touch panel 1 is set to 5um, which is beneficial to the bending of the touch panel 1.
  • the excessive misalignment of the metal trace 1221 and the shading strip 141 is avoided, and the alignment accuracy of the metal trace 1221 and the shading strip 141 is ensured under bending conditions.
  • the light shielding layer 14 is provided on the package cover 11, and the orthographic projection of the light shielding layer 14 on the substrate 121 at least partially covers the orthographic projection of the touch wiring layer 122 on the substrate 121. Projection, so that the light shielding layer 14 blocks the light reflected from the touch wiring layer 122, and avoids the phenomenon that the contrast of the overall display of the touch display device caused by the reflection of the touch wiring layer 122 in the touch panel 1 is reduced , Improve the overall display effect of the touch display device.

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Abstract

本申请提出了一种触控面板及触控显示装置，所述触控面板包括相对设置的封装盖板和触控基板，所述封装盖板与触控基板之间设有连接层；所述触控基板包括衬底、及设置于所述衬底上的触控走线层；所述封装盖板靠近所述触控基板一侧设有遮光层；所述遮光层在所述衬底上的正投影至少部分覆盖所述触控走线层在所述衬底上的正投影。

Description

触控面板及触控显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种触控面板及触控显示装置。
 背景技术
随着显示技术的发展，触控显示成为行业的关注焦点。
 技术问题
目前，触控显示屏主要包括显示面板和触控面板，而触控面板在诸如强光照射等条件下会出现触控面板中触控金属线路反光的现象，从而降低了触控显示屏整体显示的对比度，影响触控显示屏的显示效果，此外，触控面板中保护盖板与触控基板采用光学胶全贴合的方式进行组合，但此种全贴合工艺对无尘等级和对胶体的控制需求都很高，导致保护盖板与触控基板组合的良率无法提高，同时，也因为清理残胶或溢胶问题大幅增加人力成本。
 技术解决方案
本申请提供一种触控面板及触控显示装置，以解决现有触控显示装置中触控金属线路反光导致触控显示装置整体显示的对比度降低，影响触控显示装置显示效果的技术问题。
为解决上述问题，本申请提供的技术方案如下：
本申请提供了一种触控面板，包括相对设置的封装盖板和触控基板，所述封装盖板与所述触控基板之间设有连接层；
所述触控基板包括衬底、及设置于所述衬底靠近所述封装盖板一侧的触控走线层；所述封装盖板靠近所述触控基板一侧设有遮光层；
所述遮光层在所述衬底上的正投影至少部分覆盖所述触控走线层在所述衬底上的正投影。
本申请提供的触控面板中，所述触控走线层包括至少一金属走线，所述遮光层包括至少一与所述金属走线相对应的遮光条，所述遮光条在所述衬底上的正投影至少部分覆盖所述金属走线在所述衬底上的正投影。
本申请提供的触控面板中，所述遮光条的中心线在所述衬底上的正投影与所述金属走线的中心线在所述衬底上的正投影重叠。
本申请提供的触控面板中，所述遮光条在所述衬底上的正投影与所述金属走线在所述衬底上的正投影重叠。
本申请提供的触控面板中，所述连接层包括第一框胶和透明填充层，所述封装盖板、所述触控基板和所述第一框胶合围形成一第一腔体，所述透明填充层设置于所述第一腔体内。
本申请提供的触控面板中，所述透明填充层的材料为液晶。
本申请提供的触控面板中，所述触控面板包括触控显示区和围绕所述触控显示区设置的非显示区，所述遮光层位于所述触控显示区内，所述封装盖板靠近所述触控基板的一侧设置有位于所述非显示区内的黑色挡墙，所述黑色挡墙在所述衬底上的正投影覆盖所述第一框胶在所述衬底上的正投影；所述遮光层的材料与所述黑色挡墙的材料相同，且所述遮光层与所述黑色挡墙为一体成型结构。
本申请提供的触控面板中，所述封装盖板与所述衬底的厚度相等。
本申请还提供一种触控显示装置，包括显示面板和如前实施例所述的触控面板，所述触控面板设置于所述显示面板一侧。
本申请提供的触控显示装置中，所述显示面板与所述触控面板之间设有第二框胶，所述显示面板、所述触控面板和所述第二框胶合围形成一第二腔体，所述第二腔体内的气压小于所述第二腔体外部的大气压。
本申请提供的触控显示装置中，所述显示面板弯曲呈弧型，所述触控面板设置于呈弧型的所述显示面板内凹的一侧且与所述触控面板的形状相适应。
本申请提供的触控显示装置中，所述第二腔体内为真空。
本申请提供的触控显示装置中，所述触控面板的厚度与所述显示面板的厚度相等。
本申请提供的触控显示装置中，所述触控走线层包括至少一金属走线，所述遮光层包括至少一与所述金属走线相对应的遮光条，所述遮光条在所述衬底上的正投影至少部分覆盖所述金属走线在所述衬底上的正投影。
本申请提供的触控显示装置中，所述遮光条的中心线在所述衬底上的正投影与所述金属走线的中心线在所述衬底上的正投影重叠。
本申请提供的触控显示装置中，所述遮光条在所述衬底上的正投影与所述金属走线在所述衬底上的正投影重叠。
本申请提供的触控显示装置中，所述连接层包括第一框胶和透明填充层，所述封装盖板、所述触控基板和所述第一框胶合围形成一第一腔体，所述透明填充层设置于所述第一腔体内。
本申请提供的触控显示装置中，所述透明填充层的材料为液晶。
本申请提供的触控显示装置中，所述触控面板包括触控显示区和围绕所述触控显示区设置的非显示区，所述遮光层位于所述触控显示区内，所述封装盖板靠近所述触控基板的一侧设置有位于所述非显示区内的黑色挡墙，所述黑色挡墙在所述衬底上的正投影覆盖所述第一框胶在所述衬底上的正投影；所述遮光层的材料与所述黑色挡墙的材料相同，且所述遮光层与所述黑色挡墙为一体成型结构。
本申请提供的触控显示装置中，所述封装盖板与所述衬底的厚度相等。
 有益效果
本申请的有益效果为：本申请通过在封装盖板上设置遮光层，并使所述遮光层在衬底上的正投影至少部分覆盖触控走线层在衬底上的正投影，从而实现所述遮光层对所述触控走线层反射光的阻挡，避免了触控面板中触控走线层的反光致触控显示装置整体显示的对比度降低的现象，提高了触控显示装置整体显示效果。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例中触控面板的结构示意图；
图2为本申请实施例中触控走线层的俯视图；
图3为本申请实施例中遮光层的俯视图；
图4为本申请实施例中遮光条与金属走线的第一种结构示意图；
图5为本申请实施例中遮光条与金属走线的第二种结构示意图；
图6为本申请实施例中遮光条与金属走线的第三种结构示意图；
图7为本申请实施例中触控显示装置的第一种结构示意图；及
图8为本申请实施例中触控显示装置的第二种结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
现结合具体实施例对本申请的技术方案进行描述。
本申请提供了一种触控面板1，如图1至图6所示，包括相对设置的封装盖板11和触控基板12，所述封装盖板11与所述触控基板12之间设有连接层13；
所述触控基板12包括衬底121、及设置于所述衬底121靠近所述封装盖板11一侧的触控走线层122；所述封装盖板11靠近所述触控基板12一侧设有遮光层14；
所述遮光层14在所述衬底121上的正投影至少部分覆盖所述触控走线层122在所述衬底121上的正投影。
可以理解的是，所述触控面板1包括相对设置的封装盖板11和触控基板12，所述触控基板12包括衬底121、及设置于所述衬底121靠近所述封装盖板11一侧的触控走线层122；而在诸如强光照射等条件下会出现触控面板1中触控走线层122反光的现象，从而降低了触控显示屏整体显示的对比度，影响整体的显示效果，本实施例中，通过在封装盖板11上设置遮光层14，并使所述遮光层14在衬底121上的正投影至少部分覆盖触控走线层122在衬底121上的正投影，从而实现所述遮光层14对所述触控走线层122反射光的阻挡，避免了触控面板1中触控走线层122的反光致触控显示装置整体显示的对比度降低的现象，提高了触控显示装置整体显示效果。
承上，本实施例中，所述遮光层14在所述衬底121上的正投影既可以部分覆盖所述触控走线层122在所述衬底121上的正投影，也可以完全覆盖所述触控走线层122在所述衬底121上的正投影；从而至少起到至少部分阻挡所述触控走线层122的反射光，显然，在具备阻挡光线传播的条件下，所述遮光层14的材料可以根据实际需要进行选择，在此不做限制。
本一实施例中，如图1至图6所示，所述触控走线层122包括至少一金属走线1221，所述遮光层14包括至少一与所述金属走线1221相对应的遮光条141，所述遮光条141在所述衬底121上的正投影至少部分覆盖所述金属走线1221在所述衬底121上的正投影。可以理解的是，所述触控走线层122为一图案化的金属线路，具体可以包括诸如发射电极、接收电极等金属走线1221，本实施例中，所述遮光层14的图案可以与所述触控走线层122的图案相同，所述触控走线层122中的每一所述金属走线1221，都对应有一所述遮光条141，从而在整体上，从而使得所述触控走线层122中的每一所述金属走线1221都至少部分被所述遮光条141覆盖，实现遮光层14对所述触控走线层122的反射光整体遮挡的均匀性。
本一实施例中，如图4至图6所示，所述遮光条141的中心线在所述衬底121上的正投影与所述金属走线1221的中心线在所述衬底121上的正投影重叠；可以理解的是，在一所述金属走线1221和与所述金属走线1221对应的所述遮光条141中，所述遮光条141的宽度可以大于、等于或小于所述金属走线1221的宽度，显然，当所述遮光条141的中心线在所述衬底121上的正投影与所述金属走线1221的中心线在所述衬底121上的正投影重叠时，无论所述遮光条141的宽度可以大于、等于或小于所述金属走线1221的宽度均可实现良好的显示效果。
承上，本实施例中，如图4所示，当所述遮光条141的宽度小于所述金属走线1221的宽度时，将所述遮光条141的中心线在所述衬底121上的正投影与所述金属走线1221的中心线在所述衬底121上的正投影重叠，可以保证所述遮光条141对所述金属走线1221中部的遮挡，虽然所述金属走线1221未被遮挡的两侧仍会有反光，但总体上呈现明-暗-明的显示条纹，结合所述金属走线1221与所述遮光条141的宽度量级较小，整体上降低了所述金属走线1221反射光条纹的分辨率，显然，此种结构形式也可提高具备所述触控面板1的触控显示装置的对比度；并且，此种结构形式，所述遮光层14不影响所述触控显示装置整体的穿透率。如图5所示，当所述遮光条141的宽度大于所述金属走线1221的宽度时，将所述遮光条141的中心线在所述衬底121上的正投影与所述金属走线1221的中心线在所述衬底121上的正投影重叠，可以保证所述遮光条141对所述金属走线1221的完全遮挡，并且，所述遮光条141超出所述金属走线1221两侧部分的宽度相等，使得所述遮光条141对所述金属走线1221倾斜的反射光也有一定的阻挡作用，当然，为避免所述遮光条141的宽度过大，影响所述触控显示装置整体的穿透率，具体所述遮光条141的宽度可根据实际需要进行设置。
值得注意的是，如图6所示，当所述遮光条141的宽度等于所述金属走线1221的宽度时，将所述遮光条141的中心线在所述衬底121上的正投影与所述金属走线1221的中心线在所述衬底121上的正投影重叠，此时，所述遮光条141在所述衬底121上的正投影与所述金属走线1221在所述衬底121上的正投影重叠；所述遮光条141刚好对所述金属走线1221完全遮挡，显然，此种结构形式，在不影响所述触控显示装置整体的穿透率的基础上，实现对所述金属走线1221的完全遮挡。
在一实施例中，如图1所示，所述连接层13包括第一框胶131和透明填充层132，所述封装盖板11、所述触控基板12和所述第一框胶131合围形成一第一腔体133，所述透明填充层132设置于所述第一腔体133内。可以理解的是，目前，触控面板1中保护盖板与触控基板12采用光学胶全贴合的方式进行组合，但此种全贴合工艺对无尘等级和对胶体的控制需求都很高，导致保护盖板与触控基板12组合的良率无法提高，同时，也因为清理残胶或溢胶问题大幅增加人力成本；本实施例中，通过将封装盖板11和触控基板12对合，将所述封装盖板11与所述触控基板12通过第一框胶131粘合，并在所述封装盖板11、所述触控基板12和所述第一框胶131合围形成的第一腔体133内填充有透明填充层132，使触控面板1形成与显示面板相似的成盒结构，避免了保护盖板与触控基板12采用光学胶全贴合的方式而带来对工艺环境和难度的高要求，此外，此种使触控面板1形成与显示面板相似的成盒结构，可以基于现有液晶显示面板中液晶盒成盒的成熟工艺，采用制作液晶显示面板的设备和相关材料制作，便于大批量规模化生产。
承上，现有触控显示屏主要由显示面板和具备保护盖板的触控面板1组成，其中，保护盖板由于受到物理强化的限制，厚度至少大于3.0mm，远大于诸如液晶面板等显示面板的厚度，除保护盖板外，触控面板1还包括触控基板12和粘接保护盖板与触控基板12的光学胶层，进一步加大显示面板与触控面板1的厚度差，在将显示面板与触控面板1进行真空框贴时，会使厚度较薄的显示面板向触控基板12弯曲靠拢变形，此外，触控面板1也会由于设置在保护盖板与触控基板12之间整面性的光学胶而弯曲受限；本实施例中，通过将封装盖板11和触控基板12对合，将所述封装盖板11与所述触控基板12通过第一框胶131粘合，并在所述封装盖板11、所述触控基板12和所述第一框胶131合围形成的第一腔体133内填充有透明填充层132，使触控面板1形成与显示面板相似的成盒结构，解决了采用整面性光学胶粘合结构导致触控面板1弯曲受限的问题；此外，显然触控面板1的厚度越薄越容易折弯，而采用成盒结构的触控面板1也可大幅降低触控面板1的厚度，避免真空框贴时显示面板向触控基板12方向过度弯曲而变形。
在一实施例中，所述透明填充层132的材料在满足透明的基础上不做限制，如透明树脂、液晶等材料，具体的，本实施例中，所述透明填充层132的材料为液晶，显然，液晶材料在液晶显示面板的应用中较为普遍，从而也更便于触控面板1制作的取材，以较低成本实现大批量制作；此外，所述透明填充层132的材料采用液晶，也更便于所述触控面板1的折弯形成曲面结构的触控面板1。
在一实施例中，如图1所示，所述触控面板1包括触控显示区10和围绕所述触控显示区10设置的非显示区20，所述遮光层14位于所述触控显示区10内，所述封装盖板11靠近所述触控基板12的一侧设置有位于所述非显示区20内的黑色挡墙15，所述黑色挡墙15在所述衬底121上的正投影覆盖所述第一框胶131在所述衬底121上的正投影；所述遮光层14的材料与所述黑色挡墙15的材料相同，且所述遮光层14与所述黑色挡墙15为一体成型结构；显然，将所述遮光层14的材料设置成与所述黑色挡墙15的材料相同，且将所述遮光层14与所述黑色挡墙15为一体成型结构；使得所述黑色挡墙15与所述遮光层14采用同一道制程制作，无需额外增加制作工艺步骤，极大的节省了制作成本，提高了制作效率。
承上，本实施例中，如图1所示，所述黑色挡墙15在所述触控基板12上的正投影覆盖所述第一框胶131在所述触控基板12上的正投影；也即所述黑色挡墙15沿着封装盖板11靠近所述触控基板12一侧面的周边设置，且完全覆盖所述第一框胶131，在所述触控面板1具体与显示面板组合后，也便于所述黑色挡墙15对所述触控面板1周边区域光线的遮挡。
在一实施例中，所述封装盖板11与所述衬底121的厚度相等；可以理解的是，此外，在采用成盒结构的所述触控面板1中，所述封装盖板11的厚度可以远小于现有厚度至少大于3.0mm的保护盖板的厚度，所述封装盖板11的厚度可以小于0.5mm，所述触控基板12包括衬底121和设置于所述衬底121上的触控走线层122，所述封装盖板11可以采用与所述衬底121的材料和厚度均相同的玻璃衬底121基板，具体的，所述封装盖板11可以是厚度为0.4 mm的玻璃基板，显然，此种玻璃基板材料在显示面板两侧基板的应用中较为普遍，从而也更便于触控面板1制作的取材，以较低成本实现大批量制作。
本申请还提供一种触控显示装置，如图7所示，包括显示面板2和如前实施例所述的触控面板1，所述触控面板1设置于所述显示面板2一侧。具体的，所述显示面板2与所述触控面板1之间设有第二框胶3，所述显示面板2、所述触控面板1和所述第二框胶3合围形成一第二腔体4，所述第二腔体4内的气压小于所述第二腔体4外部的大气压。
可以理解的是，所述显示面板2与所述触控面板1之间设有第二框胶3，所述显示面板2、所述触控面板1和所述第二框胶3合围形成一第二腔体4，所述显示面板2与所述触控面板1也是采用成盒的结构，而使所述显示面板2、所述触控面板1和所述第二框胶3合围形成的第二腔体4内的气压小于所述第二腔体4外部的大气压，以便于在所述第二框胶3粘合所述显示面板2和所述触控面板1的基础上，进一步通过所述第二腔体4内的气压小于所述第二腔体4外部的大气压，借用大气压的压力，使所述显示面板2和所述触控面板1紧密结合，具体的，所述显示面板2与所述触控面板1之间的第二腔体4为真空状态，即所述显示面板2与所述触控面板1通过真空框贴紧密连接，以保证所述显示面板2与所述触控面板1在后续使用或者进行折弯成曲面显示屏后不易分离。
承上，本实施例中，在所述显示面板2与所述触控面板1未进行弯折之前，所述显示面板2与所述触控面板1之间的间距可以根据实际需要进行调整设置，显然，在所述显示面板2与所述触控面板1之间的第二腔体4为真空状态的条件下，所述显示面板2与所述触控面板1会有向第二腔体4微量的弯曲变形，当所述显示面板2与所述触控面板1之间的间距过小，会造成所述显示面板2和所述触控面板1向第二腔体4弯曲后相互接触，而当所述显示面板2与所述触控面板1之间的间距过大，会使得所述第二腔体4的空间过大，增加所述显示面板2与所述触控面板1进行真空框贴的工艺难度，也增加了所述触控显示装置整体的厚度，具体的，本实施例中，所述显示面板2与所述触控面板1之间的间距设定为5um；
在一实施例中，所述触控面板1的厚度与所述显示面板2的厚度之差显然越小越好，可以理解的是，所述触控面板1的厚度与所述显示面板2在进行真空框贴时，所述触控面板1厚度与所述显示面板2的厚度之差显然越小，相对设置的所述触控面板1和所述显示面板2所有的力更加均匀，避免在诸如所述触控面板1的厚度远大于所述显示面板2的厚度时，所述显示面板2向所述触控面板1过度弯曲变形；具体的，所述触控面板1的厚度与所述显示面板2的厚度相等。
在一实施例中，如图8所示，所述显示面板2弯曲呈弧型曲面结构，所述触控面板1设置于呈弧型的所述显示面板2内凹的一侧且与所述触控面板1的形状相适应；可以理解的是，所述显示面板2与所述触控面板1通过真空框贴后，再经过折弯步骤，所述显示面板2与所述触控面板1整体可以向一侧折弯形成曲面屏；值得注意的是，当所述显示面板2与所述触控面板1整体向一侧折弯形成曲面屏时，如前所述显示面板2与所述触控面板1之间的间距设定较窄，具体的，所述显示面板2与所述触控面板1之间的间距设定为5um，有利于所述触控面板1进行折弯后，避免所述金属走线1221与所述遮光条141过度错位，保证了在折弯条件下，所述金属走线1221与所述遮光条141的对位精度。
综上所述，本申请通过在封装盖板11上设置遮光层14，并使所述遮光层14在衬底121上的正投影至少部分覆盖触控走线层122在衬底121上的正投影，从而实现所述遮光层14对所述触控走线层122反射光的阻挡，避免了触控面板1中触控走线层122的反光致触控显示装置整体显示的对比度降低的现象，提高了触控显示装置整体显示效果。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种触控面板，包括相对设置的封装盖板和触控基板，所述封装盖板与所述触控基板之间设有连接层；
    所述触控基板包括衬底、及设置于所述衬底靠近所述封装盖板一侧的触控走线层；所述封装盖板靠近所述触控基板一侧设有遮光层；
    所述遮光层在所述衬底上的正投影至少部分覆盖所述触控走线层在所述衬底上的正投影。
  2. 根据权利要求1所述的触控面板，其中，所述触控走线层包括至少一金属走线，所述遮光层包括至少一与所述金属走线相对应的遮光条，所述遮光条在所述衬底上的正投影至少部分覆盖所述金属走线在所述衬底上的正投影。
  3. 根据权利要求2所述的触控面板，其中，所述遮光条的中心线在所述衬底上的正投影与所述金属走线的中心线在所述衬底上的正投影重叠。
  4. 根据权利要求2所述的触控面板，其中，所述遮光条在所述衬底上的正投影与所述金属走线在所述衬底上的正投影重叠。
  5. 根据权利要求1所述的触控面板，其中，所述连接层包括第一框胶和透明填充层，所述封装盖板、所述触控基板和所述第一框胶合围形成一第一腔体，所述透明填充层设置于所述第一腔体内。
  6. 根据权利要求5所述的触控面板，其中，所述透明填充层的材料为液晶。
  7. 根据权利要求5所述的触控面板，其中，所述触控面板包括触控显示区和围绕所述触控显示区设置的非显示区，所述遮光层位于所述触控显示区内，所述封装盖板靠近所述触控基板的一侧设置有位于所述非显示区内的黑色挡墙，所述黑色挡墙在所述衬底上的正投影覆盖所述第一框胶在所述衬底上的正投影；所述遮光层的材料与所述黑色挡墙的材料相同，且所述遮光层与所述黑色挡墙为一体成型结构。
  8. 根据权利要求5所述的触控面板，其中，所述封装盖板与所述衬底的厚度相等。
  9. 一种触控显示装置，包括显示面板和如权利要求1所述的触控面板，所述触控面板设置于所述显示面板一侧。
  10. 根据权利要求9所述的触控显示装置，其中，所述显示面板与所述触控面板之间设有第二框胶，所述显示面板、所述触控面板和所述第二框胶合围形成一第二腔体，所述第二腔体内的气压小于所述第二腔体外部的大气压。
  11. 根据权利要求10所述的触控显示装置，其中，所述显示面板弯曲呈弧型，所述触控面板设置于呈弧型的所述显示面板内凹的一侧且与所述触控面板的形状相适应。
  12. 根据权利要求10所述的触控显示装置，其中，所述触控面板的厚度与所述显示面板的厚度相等。
  13. 根据权利要求10所述的触控显示装置，其中，所述第二腔体内为真空。
  14. 根据权利要求9所述的触控显示装置，其中，所述触控走线层包括至少一金属走线，所述遮光层包括至少一与所述金属走线相对应的遮光条，所述遮光条在所述衬底上的正投影至少部分覆盖所述金属走线在所述衬底上的正投影。
  15. 根据权利要求14所述的触控显示装置，其中，所述遮光条的中心线在所述衬底上的正投影与所述金属走线的中心线在所述衬底上的正投影重叠。
  16. 根据权利要求14所述的触控显示装置，其中，所述遮光条在所述衬底上的正投影与所述金属走线在所述衬底上的正投影重叠。
  17. 根据权利要求9所述的触控显示装置，其中，所述连接层包括第一框胶和透明填充层，所述封装盖板、所述触控基板和所述第一框胶合围形成一第一腔体，所述透明填充层设置于所述第一腔体内。
  18. 根据权利要求17所述的触控显示装置，其中，所述透明填充层的材料为液晶。
  19. 根据权利要求17所述的触控显示装置，其中，所述触控面板包括触控显示区和围绕所述触控显示区设置的非显示区，所述遮光层位于所述触控显示区内，所述封装盖板靠近所述触控基板的一侧设置有位于所述非显示区内的黑色挡墙，所述黑色挡墙在所述衬底上的正投影覆盖所述第一框胶在所述衬底上的正投影；所述遮光层的材料与所述黑色挡墙的材料相同，且所述遮光层与所述黑色挡墙为一体成型结构。
  20. 根据权利要求17所述的触控显示装置，其中，所述封装盖板与所述衬底的厚度相等。
PCT/CN2020/101087 2020-06-12 2020-07-09 触控面板及触控显示装置 WO2021248606A1 (zh)

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