WO2023151637A1 - 具有感光性和导电性的显示基体 - Google Patents

具有感光性和导电性的显示基体 Download PDF

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Publication number
WO2023151637A1
WO2023151637A1 PCT/CN2023/075355 CN2023075355W WO2023151637A1 WO 2023151637 A1 WO2023151637 A1 WO 2023151637A1 CN 2023075355 W CN2023075355 W CN 2023075355W WO 2023151637 A1 WO2023151637 A1 WO 2023151637A1
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WO
WIPO (PCT)
Prior art keywords
ink
conductive
screen
photosensitive
substrate
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PCT/CN2023/075355
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English (en)
French (fr)
Inventor
李青
李赫然
孔秋旭
任书明
吕先跃
何小明
向鸿
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四川旭虹光电科技有限公司
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Application filed by 四川旭虹光电科技有限公司 filed Critical 四川旭虹光电科技有限公司
Publication of WO2023151637A1 publication Critical patent/WO2023151637A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/003—Printing processes to produce particular kinds of printed work, e.g. patterns on optical devices, e.g. lens elements; for the production of optical devices
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • 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

Definitions

  • the invention relates to the technical field of display substrate manufacturing, in particular to a display substrate with photosensitive properties and electrical conductivity.
  • microcircuits are designed on the cover to form touch-type thin-film buttons or thin-film antennas, which have gradually replaced physical buttons and antennas.
  • the present invention provides a photosensitive and conductive display substrate, which can realize the transmission of infrared light, but effectively blocks the transmission of visible light, so that it can sense the bright screen of the human body or infrared remote control, and at the same time block the entry of visible light to a relatively high degree Interfere with the sensor; at the same time, it can realize the function of touch film button or film antenna.
  • a display substrate with photosensitive and conductive properties including a display module, a transparent substrate and a functional ink layer, and the functional ink layer is arranged between the display module and the transparent substrate Between, and the functional ink layer is located on the top of the display module, the functional ink layer includes a base transparent window area, an IR sensitive ink area, a main body ink area and a conductive film, and the base transparent window area is set at the center of the functional ink layer , the main body ink area is set on the functional ink layer, And the main ink area is located outside the transparent window area of the substrate, and the conductive film is arranged on the functional ink layer.
  • the present invention is further set as: the conductive film forms a microcircuit on the functional ink layer by screen printing conductive silver paste, wherein the method of conductive silver paste printing is:
  • the present invention is further set as: the proportion of silver powder in the conductive silver paste is more than 30%, copper powder is 20%-30%, aluminum powder is 20%-30%, tin powder is 1%-5%, and nickel powder is 1% %-5%.
  • the present invention is further set to: also be mixed with polymer resin and solvent in described conductive silver paste, described polymer resin is any one in polyester acrylic resin and epoxy acrylic resin, and described solvent is ester solvent, Any one of ether-based solvents and ketone-based solvents.
  • the mesh number of the wire mesh is more than 140 mesh.
  • the present invention is further set as: the curing temperature is 60° C.-180° C., and the time is 30-90 minutes.
  • the baking temperature is 150° C., and the time is 60 minutes.
  • the present invention is further set as: the IR induction ink area is formed in the induction area of the functional ink layer by screen printing IR ink, wherein the IR ink printing method is:
  • the present invention is further configured as follows: the mesh number of the wire mesh is 200 mesh to 350 mesh.
  • the present invention is further set as: the baking temperature is 60°C-150°C, and the time is 30-60min, preferably, the baking temperature is 150°C, and the time is 60min.
  • the ink used in the main body ink area is any one of thermosetting ink and ultraviolet curing ink.
  • the invention provides a display substrate with photosensitivity and conductivity. Has the following beneficial effects:
  • the invention provides a photosensitive display substrate, a conductive display substrate, and a photosensitive and conductive display substrate at the same time.
  • a microcircuit is formed on a non-conductive substrate by screen printing conductive silver paste , to achieve photosensitivity is to form a photosensitive ink area on a specific sensing area of the substrate by screen printing IR ink. It can also be realized through a specific processing method.
  • the display module is used in conjunction with a photosensitive and conductive transparent substrate, which can realize the transmission of infrared light, but effectively block the transmission of visible light, so that it can sense the human body to brighten the screen or infrared remote control. At the same time, it can prevent the interference of visible light to the sensor to a higher degree; at the same time, it can realize the function of touch film key or film antenna.
  • Fig. 1 is a combination diagram of a display module and a transparent substrate in the present invention
  • Fig. 2 is a region map of the transparent matrix ink in the present invention.
  • Display module 2. Transparent substrate; 3. Functional ink layer; 4. Transparent window area of substrate; 5. IR sensing ink area; 6. Main ink area; 7. Conductive film.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal connection between two components. Connectivity; For those of ordinary skill in the art, can understand the above technical The specific meaning of the term in the present invention.
  • the photosensitive and conductive display substrate includes a display module 1, a transparent substrate 2 and a functional ink layer 3, and the functional ink layer 3 is arranged between the display module 1 and the transparent substrate 2, And the functional ink layer 3 is located on the top of the display module 1.
  • the functional ink layer 3 includes a base transparent window area 4, an IR sensitive ink area 5, a main body ink area 6 and a conductive film 7.
  • the base transparent window area 4 is arranged on the functional ink layer 3
  • the main ink area 6 is arranged on the functional ink layer 3
  • the main ink area 6 is located outside the transparent window area 4 of the substrate
  • the conductive film 7 is arranged on the functional ink layer 3 .
  • it can realize the transmission of infrared light, but effectively blocks the transmission of visible light, so that it can sense the bright screen of the human body or infrared remote control, and at the same time, it can prevent the interference of visible light from entering the sensor to a higher degree; at the same time, it can realize touch function of the thin-film key or the thin-film antenna.
  • the transparent base 2 is not particularly limited, as long as it is a transparent base that can serve as a cover, and examples thereof include glass, resin, composites, and laminated bodies.
  • the shape of the transparent substrate 2 is not particularly limited. It can be a flat substrate, a 2.5D micro-curved substrate, or a 3D curved substrate. As long as there is a display substrate that requires infrared sensitivity, it can be realized.
  • the transparent substrate 2 often needs to form a layer of main ink to cover the frame, wires and sensors of the internal display module except the display screen.
  • the main ink is usually black, and it can be other colors under special requirements. There is no limit to the way the ink is formed.
  • the screen printing method is recommended for specific areas of the transparent substrate, usually the edges or other positions that need to block the interior.
  • Main ink printing process screen pattern making ⁇ deploying main ink ⁇ screen printing ⁇ curing and curing.
  • the main direction is that after the display module 1 is bonded, it is better to have a color similar to or the same as that of the information screen in the display area.
  • Ink can choose heat curing ink or UV curing ink.
  • Ink components include colorants, binders, fillers and auxiliary agents.
  • coloring material there may be organic pigments, inorganic pigments, water-soluble dyes and oil dyes, etc., such as various metal oxides, chromates, carbonates, sulfates and sulfides, and the like.
  • the binder it can be natural resins such as rosin, shellac, rubber, rosin modified series, phenolic modified series, synthetic rubber, polyamide, etc., vegetable oils such as tung oil, catalpa oil and linseed oil, alcohol series, ester series and Fat series and other solvents.
  • natural resins such as rosin, shellac, rubber, rosin modified series, phenolic modified series, synthetic rubber, polyamide, etc.
  • vegetable oils such as tung oil, catalpa oil and linseed oil, alcohol series, ester series and Fat series and other solvents.
  • filler calcium carbonate, barium sulfate, magnesium carbonate and the like can be used.
  • auxiliary agents there are driers, diluents, plasticizers, defoamers, emulsifiers, stabilizers, anti-settling agents, curing agents, and leveling agents.
  • the printing screen is divided into two parts: screen frame and screen.
  • the screen frame material it can be wood, hollow aluminum profile, cast aluminum forming frame and steel, etc.
  • the hollow pattern of the screen screen directly determines the shape of the printing ink.
  • the induction ink area is reserved first.
  • a layer of infrared sensitive ink IR (Infrared Radiation) ink, is formed at the transparent hole on the display substrate.
  • IR ink has a very low transmittance to visible light (380nm-780nm) and ultraviolet light (190nm-380nm), and a high transmittance to infrared rays with wavelengths above (780nm-1200nm), effectively preventing visible light from affecting The sensor malfunctioned.
  • the conductive film 7 forms a microcircuit on the functional ink layer 3 by screen printing conductive silver paste, wherein the method of conductive silver paste printing is:
  • the proportion of silver powder in the conductive silver paste is more than 30%, copper powder is 20%-30%, aluminum powder is 20%-30%, tin powder is 1%-5%, and nickel powder is 1%-5%. %.
  • the conductive silver paste is also mixed with polymer resin and solvent
  • the polymer resin is any one of polyester acrylic resin and epoxy acrylic resin
  • the solvent is any one of ester solvent, ether solvent and ketone solvent.
  • the mesh number of the screen is more than 140 mesh.
  • the curing temperature is 60°C-180°C, and the time is 30-90min.
  • the conductive silver paste is a kind of conductive alloy formed with metal silver powder as the main material, copper powder and aluminum powder as supplementary materials, combined with polymer resin and solvent.
  • Silver powder is the main conductive material in conductive silver paste, copper powder is generally a supplement to silver conductive material considering cost, and other metal powders are used to enhance bending resistance, flexibility and good printability.
  • the lower the mesh number the greater the amount of silver paste printed, the thicker the film layer, the better the conductivity, but it is easy to form silver paste overflow and printing burrs.
  • the higher the mesh number the less the amount of silver paste printed, the thinner the film layer, the better the adhesion of the film layer, but the poorer the conductivity.
  • the screen pattern is generally designed around the target setting. If it is necessary to realize the membrane button, the shape of the button and the wire need to be designed. The front and back of the substrate need to be printed together to form a path, and contact and connect with the relevant electric shock position of the module.
  • the inside is connected to the module antenna contacts, and the outside extends to the outside of the substrate to receive signals to a greater extent.
  • Screen printing conductive silver paste control the screen distance, that is, there must be a certain gap between the screen and the printing substrate, in order to prevent the printing substrate from sticking to the silver paste at the end of scraping printing, so as to ensure the printing quality, the screen printing plate The lowest part of the must leave the printing substrate. If the gap is too small, penetration and plate sticking will easily occur along the direction of scraping movement. If the gap is too large, the screen cannot recover after printing, and it will loosen and sag, which will deform the subsequent pattern after printing.
  • the curing temperature is preferably 60°C-180°C, more preferably 150°C.
  • the time is preferably 30-90 minutes, more preferably 60 minutes.
  • the conductive layer is used as a film button and a wire.
  • the adhesion and bending resistance of the conductive layer will deteriorate.
  • the manufacturing provided by this solution The method can properly adjust the balance relationship between the two according to actual needs, and obtain a conductive film layer with both performance and conductivity.
  • the conductive film formed by screen printing conductive silver paste in this scheme is in the ultra-high frequency band (860MHz ⁇ 950MHz) and microwave frequency band (2450MHz). Both can be compared with traditional antennas.
  • the IR sensitive ink area 5 is formed in the induction area of the functional ink layer 3 by screen printing IR ink, wherein the method of IR ink printing is:
  • the mesh size of the wire mesh is 200-350 mesh; the baking temperature is 60°C-150°C, and the time is 30-60min.
  • the preparation of the ink should be carried out according to the color of the main ink. If the color of the ink is deep and thick, add varnish and printing varnish; if the color of the ink is similar in color but different in hue, add red, yellow, blue, and purple four-color dyes; if the color of the ink is light and light, add four colors , you also need to add black for deployment.
  • the color can also be adjusted by adjusting the printing method and ink ratio to make it close to the main ink color.
  • the number of screen mesh is preferably 200 mesh to 350 mesh, which can be adjusted according to actual needs.
  • Adjust the amount of diluent Reducing the amount of diluent can reduce the transmittance of IR ink and make the color darker. Increasing the amount of diluent can increase the transmittance of IR ink and make the color lighter.
  • the diluent is preferably 10% to 20%. Actual needs can be adjusted.
  • the IR ink has good compatibility with the main ink, it can be improved by adding silicon-containing additives to the ink.
  • the baking temperature is preferably 60-150°C, more preferably 150°C, and the baking time is preferably 30-60min, more preferably 60min.
  • Judgment criteria 5B: The edge of the tangent line is completely smooth and tidy without any falling off. 4B: There is slight ink drop-off at the intersection of tangent lines, and the affected area does not exceed 5% of the cross-hatched area. 3B: The ink falls off at the intersection of the incision and/or along the edge of the incision, and the affected area accounts for 5%-15% of the cross-cut area. 2B: There is ink peeling off at the edge of the line and in the middle of the grid, and the affected area accounts for 15%-35% of the area of the grid. 1B: There is band-like peeling along the cut edge, or most of the peeling, and the affected area accounts for 35%-65% of the cross-cut area. 0B: The severity of ink peeling exceeded 65%. Requires adhesion ⁇ 4B.
  • the hundred-grid verification all reached 5B.
  • two-layer printing can also be used. After the first layer is printed and not dry, the second layer can be printed directly. Two-layer printing can reduce the ink transmittance. , to darken the color.
  • the ink used in the main ink area 6 is any one of thermosetting ink and ultraviolet curing ink.
  • the invention provides a photosensitive display substrate, a conductive display substrate, and a photosensitive and conductive display substrate at the same time.
  • a microcircuit is formed on a non-conductive substrate by screen printing conductive silver paste , the photosensitivity is achieved by screen printing IR ink on the substrate
  • the photosensitive ink area is formed by the fixed induction area.
  • the photosensitive and conductive film layer is not limited to the flat substrate, and it can also be realized on the curved substrate through a specific processing method.
  • the display module 1 is used in conjunction with the transparent substrate 2 with photosensitive and conductive properties.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种具有感光性和导电性的显示基体，包括显示模组（1）、透明基体（2）和功能油墨层（3），功能油墨层设置于显示模组和透明基体之间，且功能油墨层位于显示模组的顶部，功能油墨层包括基体透明视窗区（4）、IR感应油墨区（5）、主体油墨区（6）和导电膜（7），基体透明视窗区设置于功能油墨层的中心处，主体油墨区设置于功能油墨层上，且主体油墨区位于基体透明视窗区的外侧，导电膜设置于功能油墨层上。该显示基体可以实现红外光透过，但有效阻挡可见光透过，达到可以感应人体亮屏或红外遥控的同时，较高程度的阻挡可见光进入对感应器造成干扰，同时可以实现触摸式薄膜按键或薄膜天线的功能。

Description

具有感光性和导电性的显示基体 技术领域
本发明涉及显示基体制造技术领域，特别的为具有感光性和导电性的显示基体。
背景技术
随着智能显示设备的发展，红外感应亮屏和红外遥控等功能效果被人们重视，为了防止可见光对感应器造成干扰，且为了保证基体颜色的同一性，这就需要在感光区设计一种只需要红外光线透过，阻挡可见光光线的处理方式。
随着全面屏的发展，在盖板上设计微电路，形成触摸式薄膜按键或薄膜天线，已经逐渐取代实体按键和实体天线。
综上所述，研发具有感光性和导电性的显示基体，仍是显示基体制造技术领域中急需解决的关键问题。
发明内容
本发明提供的了具有感光性和导电性的显示基体，本发明可以实现红外光透过，但有效阻挡可见光透过，达到可以感应人体亮屏或红外遥控的同时，较高程度的阻挡可见光进入对感应器造成干扰；同时可以实现触摸式薄膜按键或薄膜天线的功能。
为实现以上目的，本发明通过以下技术方案予以实现：具有感光性和导电性的显示基体，包括显示模组、透明基体和功能油墨层，所述功能油墨层设置于显示模组和透明基体之间，且功能油墨层位于显示模组的顶部，所述功能油墨层包括基体透明视窗区、IR感应油墨区、主体油墨区和导电膜，所述基体透明视窗区设置于功能油墨层的中心处，所述主体油墨区设置于功能油墨层上， 且主体油墨区位于基体透明视窗区的外侧，所述导电膜设置于功能油墨层上。
本发明进一步设置为：所述导电膜是通过丝网印刷导电银浆的方式在功能油墨层上形成微电路，其中导电银浆印刷的方法为：
确定网版目数、图案，并制作网版；调配导电银浆；主体油墨或IR油墨表干后盖板样品；丝网印刷导电银浆；固烤固化。
本发明进一步设置为：所述导电银浆中银粉比例为30％以上，铜粉为20％-30％，铝粉为20％-30％，锡粉为1％-5％，镍粉为1％-5％。
本发明进一步设置为：所述导电银浆中还混合有高分子树脂和溶剂，所述高分子树脂为聚酯丙烯酸树脂和环氧丙烯酸树脂中的任意一种，所述溶剂为酯系溶剂、醚系溶剂和酮系溶剂中的任意一种。
本发明进一步设置为：所述丝网目数为140目以上。
本发明进一步设置为：所述固烤固化的温度为60℃-180℃，进，时间为30-90min，作为优选，烘烤温度为150℃，时间为60min。
本发明进一步设置为：所述IR感应油墨区是通过丝网印刷IR油墨的方式在功能油墨层的感应区所形成的，其中IR油墨印刷的方法为：
确定网版图案和目数，并制作网板；调配IR油墨；主体油墨表干后盖板样品；对预留的感应孔位进行印刷IR油墨；固烤固化。
本发明进一步设置为：所述丝网目数为200目-350目。
本发明进一步设置为：所述烘烤温度为60℃-150℃，时间为30-60min，作为优选，烘烤温度为150℃，时间为60min。
本发明进一步设置为：所述主体油墨区所使用的油墨为选择热固化型油墨和紫外线固化油墨中的任意一种。
本发明提供了具有感光性和导电性的显示基体。具备以下有益效果：
本发明提供了具有感光性的显示基体、具有导电性的显示基体以及同时具有感光性和导电性的显示基体，实现导电性是通过丝网印刷导电银浆的方式在非导电基板上形成微电路，实现感光性是通过丝网印刷IR油墨的方式在基板特定感应区形成感光油墨区，感光和导电膜层不限于平面基体，在曲面基体上通 过特定的加工方式也可以实现，将显示模组与具有感光性和导电性的透明基体配合使用，其可以实现红外光透过，但有效阻挡可见光透过，达到可以感应人体亮屏或红外遥控的同时，较高程度的阻挡可见光进入对感应器造成干扰；同时可以实现触摸式薄膜按键或薄膜天线的功能。
附图说明
图1为本发明中显示模组与透明基体的组合图；
图2为本发明中透明基体油墨区域图。
图中标号说明：
1、显示模组；2、透明基体；3、功能油墨层；4、基体透明视窗区；5、IR感应油墨区；6、主体油墨区；7、导电膜。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述；显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“内”、“外”、“顶/底端”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发明和简化描述，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发明的限制。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。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“套设/接”、“连接”等，应做广义理解，例如“连接”，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；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；对于本领域的普通技术人员而言，可以具体情况理解上述术 语在本发明中的具体含义。
下面结合实施例对本发明作进一步的描述。
实施例：
参照图1-2所示，具有感光性和导电性的显示基体，包括显示模组1、透明基体2和功能油墨层3，功能油墨层3设置于显示模组1和透明基体2之间，且功能油墨层3位于显示模组1的顶部，功能油墨层3包括基体透明视窗区4、IR感应油墨区5、主体油墨区6和导电膜7，基体透明视窗区4设置于功能油墨层3的中心处，主体油墨区6设置于功能油墨层3上，且主体油墨区6位于基体透明视窗区4的外侧，导电膜7设置于功能油墨层3上。
在本实施例中，其可以实现红外光透过，但有效阻挡可见光透过，达到可以感应人体亮屏或红外遥控的同时，较高程度的阻挡可见光进入对感应器造成干扰；同时可以实现触摸式薄膜按键或薄膜天线的功能。
透明基体2没有特殊限定，只要是可以作为盖板的透明的基体即可，可以列举出玻璃、树脂、复合物或层叠体等。
透明基体2的形状没有特殊限定，可以是平面基体，可以是2.5D微曲面基体，也可以是3D曲面基体，只要有红外感光需求的显示基体，均可以实现。
透明基体2往往需要形成一层主体油墨来遮挡内部显示模组除显示屏外的边框、导线和传感器等，主体油墨通常为黑色，特殊要求下可以是其它颜色，油墨形成方式不做限制，这里推荐丝网印刷法，在透明基体的特定区域，一般是边缘处或其它需要遮挡内部的位置。
主体油墨印刷流程：网版图案制作→调配主体油墨→丝网印刷→固烤固化。
根据不同需求的颜色值和亮度值调配，主要方向为显示模组1贴合后，与显示区息屏颜色相近或相同为佳。
油墨可以选择热固化型油墨或紫外线固化油墨。
油墨成分有着色料、连接料、填充料和辅助剂。
作为着色料，可以为有机颜料、无机颜料、水溶性染料和油类染料等，如各种金属氧化物、铬酸盐、碳酸盐、硫酸盐和硫化物等。
作为连接料，可以为松香、虫胶、橡胶等天然树脂，松香改性系列、酚醛改性系列、合成橡胶、聚酰胺等，桐油、梓油和亚麻仁油等植物油，醇系列、酯系列和脂肪系列等溶剂。
作为填充料，可以为出碳酸钙、硫酸钡和碳酸镁等。
作为辅助剂，含有催干剂、稀释剂、增塑剂、消泡剂、乳化剂、稳定剂、防沉剂、固化剂、流平剂等。
印刷网版分为网框和丝网两个部分。
对于网框材料，可以是木材、中空铝型材、铸铝成型框和钢材等。
对于丝网，可以选择尼龙网、涤纶网和钢丝网等。
网版丝网的镂空图案直接决定了印刷油墨的形状，这里先预留出感应油墨区。
显示基体红外感应器处，需要事先预留出孔位，保证传感器不被主体油墨阻挡。
为了保证显示基体颜色同一性和防止可见光对感应器造成影响，需要将孔位做一种特殊遮挡，即外观上能有效遮挡感应区，减少可见光的透过，同时又满足红外感光功能性不受到影响。
即在显示基体上透明孔位处形成一层红外感应油墨，IR(Infrared Radiation)油墨。
IR油墨具有对可见光(380nm-780nm)和紫外线(190nm-380nm)有很低的透过率、而对波长在(780nm-1200nm)以上的红外线又有很高的透过率，有效防止可见光对传感器产生误动作。
在本发明中，导电膜7是通过丝网印刷导电银浆的方式在功能油墨层3上形成微电路，其中导电银浆印刷的方法为：
确定网版目数、图案，并制作网版；调配导电银浆；主体油墨或IR油墨表干后盖板样品；丝网印刷导电银浆；固烤固化。
在本发明中，导电银浆中银粉比例为30％以上，铜粉为20％-30％，铝粉为20％-30％，锡粉为1％-5％，镍粉为1％-5％。导电银浆中还混合有高分子树脂和溶 剂，高分子树脂为聚酯丙烯酸树脂和环氧丙烯酸树脂中的任意一种，溶剂为酯系溶剂、醚系溶剂和酮系溶剂中的任意一种。丝网目数为140目以上。固烤固化的温度为60℃-180℃，时间为30-90min。
在本实施例中，导电银浆是一种以金属银粉为主要材料，铜粉和铝粉等为辅形成的一种导电合金，与高分子树脂和溶剂组合而成。
银粉为导电银浆中主要的导电材料，铜粉一般为考虑成本对银导电材料的补充，其它金属粉则是强化耐弯折性、柔韧性和良好的印刷性等增益性能。
对于印刷网版，优选140目以上，目数越低，银浆印刷量越大，膜层越厚导电性能越好，但容易形成银浆溢印、印刷毛边的产生。目数越高，银浆印刷量越少，膜层越薄，膜层附着力好，但导电性能差。
网版图案一般围绕目标设定进行设计，若需要实现薄膜按键，则需要设计出按键及导线形状，基体正反面印刷需要配合形成通路，并与模组相关触电位置接触连接。
若要实现薄膜金属天线，则需设计天线形状及起点终点位置，内部与模组天线触点连接，外部延伸至基体外侧更大限度的接收到信号。
丝网印刷导电银浆，控制网距，即网版与承印基体之间要留有一定的间隙，为了使承印基体在末刮印时不粘到银浆，从而保证印刷质量，丝网印版的最低部分必须离开承印基体。间隙如果太小，沿刮胶运动方向容易产生渗透和粘版现象。如果间隙过大，网版压印后不能复原，松驰而下垂，使得印刷后续图案变形。
其中，固烤固化的温度优选60℃-180℃，进一步优选150℃。时间优选30-90min，进一步优选60min。
导电层作为薄膜按键和导线，薄膜越厚，导线线径越大，电阻越小，导电性越好，但是导电层附着力、耐弯折性等性能将会变差，本方案所提供的制造方法可以根据实际需求适当调节两者平衡关系，得到性能与导电性兼顾的导电膜层。
导电层作为薄膜金属天线时，希望接收信号强度更强，本方案丝网印刷导电银浆形成的导电膜在超高频段(860MHz～950MHz)和微波频段(2450MHz)， 均可以与传统天线相比拟。
在本发明中，IR感应油墨区5是通过丝网印刷IR油墨的方式在功能油墨层3的感应区所形成的，其中IR油墨印刷的方法为：
确定网版图案和目数，并制作网板；调配IR油墨；主体油墨表干后盖板样品；对预留的感应孔位进行印刷IR油墨；固烤固化。
其中，丝网目数为200目-350目；烘烤温度为60℃-150℃，时间为30-60min。
在本实施例中，油墨的调配要根据主体油墨的颜色进行调配。如若油墨颜色深且浓，则加入光油和印刷光油；若油墨颜色深浅接近，色相不同，则加入红黄蓝紫四色染剂调配；若油墨颜色浅且淡，则除加入四色外，还需要加入黑色进行调配。
通常还可以通过调节印刷方法和油墨比例来调整颜色，使之与主体油墨颜色接近。
通过调整网版丝网目数得到需要的感应区IR油墨颜色，增加网版的目数，能够提高IR油墨透过率、颜色变浅，但同时会降低IR油墨在黑色背景下的黑度，反之减少目数，降低透过率、颜色变深，同时IR油墨黑度上升。丝网目数优选200目到350目，根据实际需求可调。
调整稀释剂的用量，减少稀释剂用量能够降低IR油墨透过率、使颜色变深，增加稀释剂用量能够增加IR油墨透过率、使颜色变浅，稀释剂优选10％到20％，根据实际需求可调。
保证IR油墨与主体油墨有良好的相容性，可以在油墨中加入含硅添加剂改善。
烘烤温度优选60-150℃，进一步优选150℃，时间优选30-60min，进一步优选60min。
为了更好的对感光油墨进行说明，以丝网目数300目，稀释剂10％，150℃烘烤60min工艺为例。感光油墨性能参数见表1。
表1感光油墨性能参数表
由表1可知，IR油墨在可见光550nm波段透过率在10％左右，在红外线850-940nm波段透过率在80％以上，符合遮挡可见光，透过红外线的要求。
油墨附着力，剥离百格测试，划线模板用刻刀在油墨面横竖各刻11道划痕，包围形成100个正方形方格，透明胶带压实、剥离，重复三次。
判定基准：5B：切线边缘完全光滑整齐，无任何脱落。4B：在切线交叉处有轻微油墨脱落，影响面积不超过划格区域5％。3B：在切口交叉处和/或沿切口边缘与油墨脱落，受影响面积占划格面积5％-15％。2B：划线边缘和格子中间有油墨脱落，受影响面积占划格面积15％-35％。1B：沿切割边缘有带状剥落，或大部分剥落，受影响面积占划格面积35％-65％。0B：油墨脱落严重程度超过65％。要求附着力≥4B。
在本实施例中百格验证均达到5B。在不改变网目目数和稀释剂比例的情况下，也可以采用两层印刷，在第一层印刷完、不干燥的情况下，直接印刷第二层，两层印刷可以降低油墨透过率，使颜色变深。
在本发明中，主体油墨区6所使用的油墨为选择热固化型油墨和紫外线固化油墨中的任意一种。
本发明提供了具有感光性的显示基体、具有导电性的显示基体以及同时具有感光性和导电性的显示基体，实现导电性是通过丝网印刷导电银浆的方式在非导电基板上形成微电路，实现感光性是通过丝网印刷IR油墨的方式在基板特 定感应区形成感光油墨区，感光和导电膜层不限于平面基体，在曲面基体上通过特定的加工方式也可以实现，将显示模组1与具有感光性和导电性的透明基体2配合使用，其可以实现红外光透过，但有效阻挡可见光透过，达到可以感应人体亮屏或红外遥控的同时，较高程度的阻挡可见光进入对感应器造成干扰；同时可以实现触摸式薄膜按键或薄膜天线的功能。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不会使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 具有感光性和导电性的显示基体，其特征在于，包括显示模组(1)、透明基体(2)和功能油墨层(3)，所述功能油墨层(3)设置于显示模组(1)和透明基体(2)之间，且功能油墨层(3)位于显示模组(1)的顶部，所述功能油墨层(3)包括基体透明视窗区(4)、IR感应油墨区(5)、主体油墨区(6)和导电膜(7)，所述基体透明视窗区(4)设置于功能油墨层(3)的中心处，所述主体油墨区(6)设置于功能油墨层(3)上，且主体油墨区(6)位于基体透明视窗区(4)的外侧，所述导电膜(7)设置于功能油墨层(3)上。
  2. 根据权利要求1所述的具有感光性和导电性的显示基体，其特征在于，所述导电膜(7)是通过丝网印刷导电银浆的方式在功能油墨层(3)上形成微电路，其中导电银浆印刷的方法为：
    确定网版目数、图案，并制作网版；调配导电银浆；主体油墨或IR油墨表干后盖板样品；丝网印刷导电银浆；固烤固化。
  3. 根据权利要求2所述的具有感光性和导电性的显示基体，其特征在于，所述导电银浆中银粉比例为30％以上，铜粉为20％-30％，铝粉为20％-30％，锡粉为1％-5％，镍粉为1％-5％。
  4. 根据权利要求2所述的具有感光性和导电性的显示基体，其特征在于，所述导电银浆中还混合有高分子树脂和溶剂，所述高分子树脂为聚酯丙烯酸树脂和环氧丙烯酸树脂中的任意一种，所述溶剂为酯系溶剂、醚系溶剂和酮系溶剂中的任意一种。
  5. 根据权利要求2所述的具有感光性和导电性的显示基体，其特征在于，所述丝网目数为140目以上。
  6. 根据权利要求2所述的具有感光性和导电性的显示基体，其特征在于，所述固烤固化的温度为60℃-180℃，进，时间为30-90min。
  7. 根据权利要求1所述的具有感光性和导电性的显示基体，其特征在于，所述IR感应油墨区(5)是通过丝网印刷IR油墨的方式在功能油墨层(3)的感应区所形成的，其中IR油墨印刷的方法为：
    确定网版图案和目数，并制作网板；调配IR油墨；主体油墨表干后盖板样品；对预留的感应孔位进行印刷IR油墨；固烤固化。
  8. 根据权利要求7所述的具有感光性和导电性的显示基体，其特征在于，所述丝网目数为200目-350目。
  9. 根据权利要求7所述的具有感光性和导电性的显示基体，其特征在于，所述烘烤温度为60℃-150℃，时间为30-60min。
  10. 根据权利要求1所述的具有感光性和导电性的显示基体，其特征在于，所述主体油墨区(6)所使用的油墨为选择热固化型油墨和紫外线固化油墨中的任意一种。
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