WO2023169256A1 - 触控显示面板及其组装工艺以及电器设备 - Google Patents

触控显示面板及其组装工艺以及电器设备 Download PDF

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Publication number
WO2023169256A1
WO2023169256A1 PCT/CN2023/078744 CN2023078744W WO2023169256A1 WO 2023169256 A1 WO2023169256 A1 WO 2023169256A1 CN 2023078744 W CN2023078744 W CN 2023078744W WO 2023169256 A1 WO2023169256 A1 WO 2023169256A1
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WO
WIPO (PCT)
Prior art keywords
light
conductive member
touch
conductive
display panel
Prior art date
Application number
PCT/CN2023/078744
Other languages
English (en)
French (fr)
Inventor
吴启军
张健
高健坚
张力潇
李建平
魏中科
Original Assignee
芜湖美的厨卫电器制造有限公司
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
Priority claimed from CN202220554637.5U external-priority patent/CN217508738U/zh
Priority claimed from CN202210240160.8A external-priority patent/CN116774340A/zh
Priority claimed from CN202220554520.7U external-priority patent/CN217879708U/zh
Priority claimed from CN202210240133.0A external-priority patent/CN116774849A/zh
Priority claimed from CN202220554484.4U external-priority patent/CN217982337U/zh
Priority claimed from CN202220554623.3U external-priority patent/CN217506513U/zh
Application filed by 芜湖美的厨卫电器制造有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2023169256A1 publication Critical patent/WO2023169256A1/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

Definitions

  • the application number applied on March 10, 2022 is 202210240160.8, and the name is "Light guide plate and processing method thereof, touch display panel and electrical equipment";
  • the present application relates to the technical field of display devices, and in particular, to a touch display panel and its assembly process as well as electrical equipment.
  • the control buttons of electrical equipment are usually integrated into the touch display panel.
  • the display diaphragm of the touch display panel is equipped with a touch pattern, and the backlight module of the touch display panel is controlled to light up the corresponding area of the display diaphragm to light up the touch screen.
  • Control pattern can prompt the user to perform key operations.
  • Embodiments of the present application provide a touch display panel, its assembly process, and electrical equipment, which can solve the problems of complex assembly processes and low assembly efficiency of the touch display panel.
  • a touch display panel including:
  • a light-guiding conductive element is disposed on the light-incident side of the touch pattern.
  • the light-guiding conductive element includes a light guide and an electrical conductor.
  • the light guide and the electrical conductor are integrally injection molded;
  • a light source is provided adjacent to the light-guiding conductive member, and the light emitted by the light source can pass through the light-guiding conductive member to illuminate the touch pattern;
  • An electric control board is disposed on a side of the light-conducting and conductive member away from the display film, and is electrically connected to the light-conducting and conductive member and the light source.
  • embodiments of the present application provide an assembly process of a touch display panel, including the following steps:
  • the display film is assembled on the light-guiding conductive member, so that the touch pattern on the display film and the light-guiding conductive member are positioned correspondingly.
  • embodiments of the present application provide an electrical device, including a device body and a touch display panel as described above.
  • the light-guiding conductive part integrates the light-guiding function and the electric-conducting function, and can conduct the light generated by the light source to the display film film to light up the corresponding touch button, and to be electrically connected to the electric control board in the touch display panel, so that when the user touches the display film, the user, the light-conducting conductive part and the electric control board can form a conductive loop. So that the key signal can be generated in the touch display panel.
  • the light-guiding conductive element By arranging the light-guiding conductive element on the light-incident side of the touch pattern, the illuminated area of the display film can directly correspond to the touch area.
  • the touch control can be effectively simplified. The structure within the display panel effectively improves assembly efficiency.
  • Figure 1 is a schematic cross-sectional view of a touch display panel according to an embodiment of the present application
  • Figure 2 is a schematic three-dimensional structural diagram of a touch display panel according to an embodiment of the present application.
  • Figure 3 is a schematic cross-sectional view of a light-conducting and conductive member including a light-shielding member according to an embodiment of the present application;
  • Figure 4 is a schematic cross-sectional view of a light-guiding conductive member including a reflective layer according to an embodiment of the present application
  • Figure 5 is a schematic cross-sectional view of the optical part disposed on the side of the light guide body facing the display film according to an embodiment of the present application;
  • Figure 6 is a schematic cross-sectional view of the light shielding member connected to the side wall of the light guide body according to an embodiment of the present application
  • Figure 7 is a schematic cross-sectional view of a light reflective layer provided on an electronic control panel according to an embodiment of the present application.
  • Figure 8 is a schematic cross-sectional view of a display diaphragm according to an embodiment of the present application.
  • Figure 9 is a schematic three-dimensional structural diagram of an elastic conductive member installed on a support member according to an embodiment of the present application.
  • Figure 10 is a schematic cross-sectional view of an elastic conductive member installed on a support member according to an embodiment of the present application
  • FIG. 11 is a flow chart of an assembly process of a touch display panel according to an embodiment of the present application.
  • FIG. 1 and Figure 2 it is a schematic structural diagram of a touch display panel 100 according to an embodiment of the present application.
  • the touch display panel 100 is used in various electrical equipment, including but not limited to: rice cookers, water purifiers, coffee machine, food processor, washing machine, water heater, refrigerator or vending machine, etc.
  • the touch display panel 100 includes a display film 110 , a light conductive member 140 , a light source 120 and an electric control board 130 .
  • the display film 110 is displayed to the user on the surface of the touch display panel 100 for the user to contact.
  • the display film The sheet 110 may form a part of the housing of the electrical device to which the touch display panel 100 belongs.
  • the light-guiding conductive member 140, the light source 120 and the electric control board 130 are disposed inside the display film 110 and are installed in a hidden manner.
  • the display film 110 has a light-transmissive touch pattern 111, and the number of the touch patterns 111 may be multiple.
  • the touch pattern 111 can be a graphic or text mark.
  • the touch pattern 111 can include patterns used to represent washing and dehydration, and text used to represent water volume; taking a rice cooker as an example, the touch pattern 111 It may include patterns used to represent the cooking mode; taking a water heater as an example, the touch pattern 111 may include patterns used to represent the water temperature, water volume, and water use mode.
  • the light source 120 is used to emit light, and the light source 120 may be an LED light source.
  • the light source 120 is disposed adjacent to the light-guiding conductive member 140.
  • the light-guiding conductive member 140 is disposed on the light incident side of the touch pattern 111.
  • the light emitted by the light source 120 can reach the touch pattern 111 through the light-guiding conductive member 140 to illuminate the touch pattern. Control the pattern 111 so that the user can clearly see the pattern.
  • the light emitted by the light source 120 can enter the light-guiding conductive member 140 , change the direction of propagation and be emitted by the light-guiding conductive member 140 , and then reach the touch pattern 111 .
  • the light source 120 can be disposed adjacent to the light-guiding conductive member 140 so that the light generated by the light source 120 can reach the light-guiding conductive member 140 in a shorter path, thereby reducing light loss. Further, the light source 120 can be in contact with the light-guiding conductive member 140 so that the light emitted by the light source 120 can directly reach the light-guiding conductive member 140 .
  • the electric control board 130 is disposed on the side of the light-guiding conductive component 140 away from the display film 110.
  • the electric control board 130 is electrically connected to the light-guiding conductive component 140.
  • the electric control board 130 may be provided with a button module.
  • the electronic control board 130 is also electrically connected to the pins 121 of the light source 120 to supply power to the light source 120 and control the lighting state of the light source 120 .
  • the light conductive member 140 includes a light guide 141 and an electrical conductor 142, and the light guide 141 and the electrical conductor 142 are integrally formed.
  • the light guide 141 is used to guide the light emitted by the light source 120 to reach the touch pattern 111 of the display film 110, so as to illuminate the touch pattern 111.
  • the conductor 142 is in contact with the display film 110 , or the conductor 142 is spaced apart from the display film 110 , and the conductor 142 is used to electrically connect with the electronic control board 130 so that when the user touches the corresponding area of the display film 110 (the area corresponding to the touch pattern 111 ), the user, the conductor 142 and the electric control board 130 form an electrical circuit to trigger the key module of the electric control board 130 to generate a key signal.
  • the distance between the surface of the display film 110 for user contact and the conductor 142 is less than 2 mm.
  • the light guide 141 has a light incident surface 141a, a light emission surface 141b and a mating surface 141c connected to the conductor 142.
  • the light incident surface 141a is arranged corresponding to the light source 120, and the light emission surface 141b is arranged towards the display film 110. Further, the light emission surface 141b Set corresponding to the touch pattern 111 of the display film 110 .
  • the light generated by the light source 120 enters the interior of the light guide 141 from the light incident surface 141a, is changed in the light propagation direction, and then exits the light guide 141 to reach the touch pattern 111 of the display film 110.
  • the light guide 141 includes a light guide main body 1411 and an optical part 1412 , and the light guide main body 1411 and the optical part 1412 are integrally provided. At least part of the surface of the light guide body 1411 forms a light incident surface 141a.
  • the optical part 1412 is located on the outer layer of the light guide body 1411. The light emitted by the light source 120 enters the light guide body 1411 from the light incident surface 141a and reaches the optical part 1412. After changing the propagation direction at 1412, the light guide body 1411 is emitted from the light exit surface 141b and reaches the touch pattern of the display film 110. Case 111.
  • the light guide body 1411 includes light-transmitting materials, including acrylic (polymethylmethacrylate), PC (polycarbonate), PE (polyethylene), etc.
  • the above-mentioned light-transmitting materials have good light transmittance and are easy to process.
  • the optical part 1412 includes at least one of optical dots formed on the surface of the light guide body 1411, a microprism structure protruding on the periphery of the light guide body 1411, and a reflective coating protruding on the periphery of the light guide body 1411.
  • the shape of the mold cavity in the injection mold can be designed, and the light-transmitting material can be poured directly into the mold.
  • the light guide 141 including the optical part 1412 and the light guide body 1411 is directly obtained; alternatively, after the light guide body 1411 is processed, the surface of the light guide body 1411 can be directly processed by polishing or etching.
  • the optical part 1412 comes out.
  • the optical part 1412 includes a reflective coating protruding from the periphery of the light guide body 1411, a two-color injection molding process can be used to injection mold the light guide body 1411 and the reflective coating into one body.
  • the conductor 142 is electrically connected to the electric control board 130, and the projection of the conductor 142 on the display film 110 covers the touch pattern 111.
  • the projection of the conductor 142 on the display film 110 overlaps with the touch pattern 111; or , in the thickness direction
  • the light-guiding conductive element 140 is disposed on the light-incident side of the touch pattern 111, and the light-guiding conductive element 140 can be in contact with the display film 110.
  • the light-guiding conductive element 140 is attached or abutted with the display film 110, so as to When the user touches the display film 110, the conductor 142 of the light-guiding conductive member 140 can be in contact with the user at the shortest distance, so that the touch response is more sensitive.
  • the conductor 142 is integrally provided with the light guide 141, and the conductor 142 avoids the light incident surface 141a and the light exit surface 141b of the light guide 141, so that light can smoothly enter and exit the light guide 141 from the light incident surface 141a and the light exit surface 141b.
  • the light-guiding conductive member 140 further includes a light-shielding member 143 , which may be made of a light-shielding material, so that the light-shielding member 143 can block light.
  • the light shielding member 143 is provided on the mating surface 110c and avoids the light incident surface 110a and the light exit surface 110b, so that light can enter and exit the light guide body 1411 from the light incident surface 110a and the light exit surface 110b.
  • the light shielding member 143 , the light guide body 1411 and the optical part 1412 are integrally injection molded, so that both the light transmitting member 110 and the light shielding member 143 are assembled in the internal space of the touch display panel 100 .
  • Part of the light entering the light guide body 1411 is absorbed by the light shielding member 143 , and the other part of the light reaches the optical part 1412 .
  • part of the light After the light reaching the optical part 1412 in the light guide body 1411 is changed in propagation direction by the optical part 1412, part of the light reaches the light shielding member 143 and is absorbed by the light shielding part 143, and the other part of the light exits the light guide body 1411 from the light exit surface 110b.
  • the light shielding member 143 can also block external light from entering the current light guide body 1411 and prevent light from crosstalk between different light guide bodies 1411.
  • the light-shielding member 143 covers the mating surface 110c and is connected to the light-incident surface 110a and the light-emitting surface 110b to block light from entering or exiting the light guide body 1411 from the area adjacent to the light-incident surface 110a and the light-emitting surface 110b.
  • the light conductive member 140 also includes a reflective layer 144 , which is integrally formed on the light guide body 1411 and avoids the light incident surface 110 a and the light exit surface 110 b. That is, the reflective layer 144 can also be provided on the mating surface 110 c. , for example, the reflective layer 144 and the light guide body 1411 are integrally formed using a two-color injection molding process.
  • the light-guiding conductive member 140 also includes a light-shielding member 143
  • the reflective layer 144 is connected to the mating surface 110c, and the light-shielding member 143 covers the reflective layer 144.
  • the light entering the light guide body 1411 can be reflected by the reflective layer 144, so that more light can be reflected.
  • the light is emitted from the light exit surface 110b, thereby improving the light utilization rate.
  • the light-guiding conductive member 140 includes at least one of the light-shielding member 143 and the reflective layer 144 , optionally, the light-shielding member 143 and the reflective layer 144 are connected to the portion of the mating surface 110 c that is not connected to the conductor 142 .
  • the light-shielding member 143 is made of light-shielding material, for example, the light-shielding material includes light-shielding ink.
  • the reflective layer 144 is made of reflective material.
  • the reflective material includes reflective metal.
  • the light-guiding conductive member 140 may not include the light-shielding layer 144
  • the light-shielding member 143 is made of a material with light-shielding and light-reflective properties.
  • the light-shielding and light-reflective material is made of a light-shielding material and a light-reflective material. It is obtained by mixing, so that the light-shielding member 143 has both light-shielding properties and light-reflecting properties.
  • the conductor 142 is made of a conductive light-shielding material, so that the conductor 142 has conductivity and light-shielding properties.
  • the conductive light-shielding material can be conductive graphite that has both conductivity and light-shielding properties; or the conductive light-shielding material can include a conductive material and a light-shielding material, with the conductive material exerting conductivity and the light-shielding material exerting light-shielding properties.
  • the conductive light-shielding material includes a conductive material and a light-shielding material
  • the conductive material and the light-shielding material can be mixed to form the conductor 142 with conductivity and light-shielding properties; or, the conductive material forms a conductive layer, and the light-shielding material forms a light-shielding layer,
  • the conductive layer and the light-shielding layer are integrally processed and formed to obtain the conductor 142.
  • the conductor 142 is made of conductive reflective material, making the conductor 142 conductive and reflective.
  • the conductive reflective material can be a conductive metal that has both conductivity and light-shielding properties; or, the conductive reflective material can include conductive materials and light-reflective materials, so that the conductor 142 has conductivity and light-reflective properties.
  • the conductive light-shielding material includes a conductive material and a reflective material
  • the conductive material and the reflective material can be mixed to form a conductive and reflective conductor 142; or, the conductive material forms a conductive layer, and the reflective material forms a reflective layer,
  • the conductive layer and the reflective layer are integrally processed and formed to obtain the conductor 142.
  • the conductor 142 may also include a base material, which can be stably connected to the light-transmitting material of the light guide 141 .
  • the base material may be the same as the light-transmitting material used to prepare the light guide 141 to improve the connection stability between the conductor 142 and the light guide 141 .
  • the base material can be mixed with a conductive material, a light-shielding material and a reflective material respectively to improve the connection stability of the light-shielding material, the light-shielding material and the light guide 141.
  • the base material can be mixed with a light-shielding material to form a light-shielding layer.
  • the base material can be The conductive layer can be made by mixing with conductive materials.
  • the base material can be mixed with reflective materials to make the reflective layer, or the base material, conductive material, light-shielding material and reflective material can be mixed to make a combination of conductivity, light-shielding and Reflective conductor 142 .
  • the conductor 142 is made of conductive elastic material, so that the conductor 142 can contact the electric control board 130 and maintain the stability of the electrical connection between the conductor 142 and the electric control board 130 .
  • Conductive elastic materials include conductive materials The conductive material and the elastic material can be mixed to obtain the elastic conductor 142; or the conductive material forms a conductive layer, the elastic material forms an elastic layer, and the conductive layer and the elastic layer are integrally processed to obtain the conductor 142.
  • the elastic conductor 142 contacts the display film 110 and the electronic control board 130 respectively.
  • the elastic material may have light-shielding properties, or when the conductor 142 is made of a conductive light-shielding material, the conductor 142 further includes an elastic material, so that the conductor 142 has both conductivity, light-shielding properties and elasticity.
  • the conductor 142 When the conductor 142 is made of a conductive reflective material, the conductor 142 also includes an elastic material, so that the conductor 142 has conductivity, reflectivity and elasticity.
  • the light guide 141 and the electrical conductor 142 are integrally formed through a two-color injection molding process.
  • the conductor 142 includes a conductive layer, a light-shielding layer, a reflective layer, an elastic layer and other layer structures, each layer structure is also integrally formed using a two-color injection molding process.
  • the side wall surface and the second surface forms the light incident surface 141a, and the other part forms the mating surface 141c.
  • the light guide 141 When a part of the side wall surface of the light guide 141 forms the light incident surface 141a, the remaining part of the side wall surface of the light guide 141 and the second surface form a mating surface 141c, and the light source 120 is located outside the light guide 141 corresponding to the light incident surface. 141a setting (i.e. side-lit light source).
  • the conductor 142 is connected to the second surface, and the conductor 142 is disposed between the light guide body 1411 and the electric control board 130 in the thickness direction X of the light guide 141 .
  • the light-guiding conductive member 140 further includes a light-shielding member 143
  • the light-shielding member 143 is provided on the side wall surface of the light guide body 1411 that participates in forming the mating surface 141c.
  • the conductor 142 can extend toward one side of the display film 110 to the side wall surface of the light guide body 1411 that participates in forming the mating surface 141c.
  • the light shielding member 143 can be directly connected to the side wall surface of the light guide body 1411 that participates in forming the mating surface 141c.
  • the conductor 142 extends to the side wall surface and is connected to the outside of the light shielding member 143.
  • the conductor 142 can also be provided to extend to the side wall surface connected to the light guide body 1411 and participate in forming the mating surface 141c.
  • the light shielding member 143 is set to be in a conductive state. outside the body 142 and connected to the conductor 142 .
  • the conductor 142 can directly contact the display film 110.
  • the light-guiding conductive member 140 may be configured not to include the light-shielding member 143 , and the conductor 142 directly blocks stray light from entering or exiting the light-guiding body 1411 .
  • the light source 120 is disposed on the electronic control board 130 to correspond to the light incident surface 141 a (that is, a direct light source).
  • the light guide 141 The side wall surface of the light guide 141 forms a mating surface 141c, and the conductor 142 is connected to the mating surface 141c. Specifically, all the side wall surfaces of the light guide 141 form a mating surface 141c, and the conductor 142 is connected to the mating surface 141c so that the conductor 142 is surrounded by the conductor 141.
  • the conductor 142 can directly contact the display film 110.
  • the light-guiding conductive member 140 may be configured not to include the light-shielding member 143 .
  • the optical portion 1412 is provided on the side of the light guide body 1411 facing the display film 110 .
  • the optical portion 1412 and the light guide body 1411 form a third surface on the surface facing the display film 110 .
  • One surface, or, as shown in FIG. 3 the optical part 1412 is provided on one side of the light guide body 1411 displaying the film 110 .
  • both the optical part 1412 and the light guide body 1411 face the surface of the electric control board 130 to form a third surface. Two surfaces.
  • the light propagation direction can be changed at the optical part 1412, such as refraction, reflection, etc., so as to at least improve the light utilization rate of the light source 120, and by designing the shape of the optical part 1412, the light can also be adjusted to reach the display film.
  • the distribution state of the sheet 110 is, for example, adjusting the light through the optical part 1412 to make the distribution of the light reaching the display film 110 more uniform.
  • a light reflective layer 131 is provided on the surface of the electronic control board 130 facing the light guide 141 .
  • the light reflective layer 131 can reflect light to the light conductive member 140 and improve the emission of the light source 120 .
  • the light source 120 is set as a light bar, and the light reflection layer 131 also covers the circuit board of the light bar and avoids the lamp beads of the light bar, so that the light emitted by the lamp beads can reach the light guide 141 .
  • the display film 110 includes a transparent base material layer 101 , an inkjet layer 102 and a light-shielding layer 103 .
  • the transparent base material layer 101 can be used to carry the inkjet layer 102 and the light-shielding layer 103 .
  • the inkjet printing layer 102 is formed on the inner surface of the transparent base material layer 101 by inkjet printing, and the inkjet printing layer 102 includes a light-transmitting touch pattern 111 .
  • the light-shielding layer 103 is disposed on the inner surface or the outer surface of the transparent base material layer 101.
  • the light-shielding layer 103 has a light-transmitting area corresponding to the position of the touch pattern 111, that is, the light-transmitting area is opposite to the touch pattern on the inkjet layer 102.
  • the light-shielding layer 103 is used to cooperate with the inkjet layer 102 to cover other areas in the inkjet layer 102 that are not provided with touch patterns to prevent light from passing through these areas. In this way, when the light source 120 emits light, only the touch patterns are lit. To contrast with other areas.
  • the transparent base material layer 101 can be made of a light-transmitting material.
  • the transparent base material layer 101 can be a glass plate, a PET (polyethylene terephthalate) layer, a PVC (polyvinyl chloride) layer, etc.
  • the transparent base material layer 101 can be made of a non-light-transmitting material.
  • the transparent base material layer 101 can be made of metal.
  • the transparent base material layer 101 can be a metal plate, and the metal plate is provided with light holes formed in an array. The area where the light hole is formed is directly opposite to the touch pattern 111 , that is, the transparent base material layer 101 is provided with a light hole in the area directly opposite to the touch pattern 111 .
  • the touch display device 100 may also include a light-transmissive glass substrate 1301, and the display film 110 is disposed on the inner surface of the light-transmissive glass substrate 1301.
  • the light-shielding layer 103 is disposed
  • the light-shielding layer 103 is disposed on the inner surface of the transparent base material layer 101
  • the light-shielding layer 103 is bonded to the inner surface of the transparent glass substrate 1301. The inner surface of the light-transmissive glass substrate 1301.
  • the touch display panel 100 further includes a support 150 , which is disposed between the display film 110 and the electric control board 130 .
  • the support 150 can be connected to at least one of the display film 110 and the electric control board 130 . one.
  • the support member 150 may be connected to a structural member of the electrical device.
  • the structural member may be a structural member of the electrical device.
  • the light guide and conductive member 140 is disposed on the support member 150 to improve the installation stability of the light guide and conductor 140.
  • at least one of the light guide body 1411 and the conductor 142 of the light guide and conductor 140 is arranged in contact with the support member 150. connect.
  • the conductor 142 and the support member 150 can be integrally injection molded.
  • the light guide body 1411 is connected to the support member 150, the light guide body 1411 and the support member 150 can be integrally injection molded.
  • the conductor 142 of the light-conducting component 140 is also electrically connected to a conductive connection part 160.
  • the conductive connection part 160 may include conductive glue.
  • the conductor 142 is bonded to the electric control board 130 through the conductive glue.
  • the conductor 142 is The glue is electrically connected to the electric control board 130; the conductive connection part 160 may also include solder material, and the conductor 142 is fixed to the electric control board 130 by soldering and is electrically connected to the electric control board 130.
  • the embodiment of the present application does not specifically limit the electrical connection method between the conductor 142 and the electric control board 130 .
  • the touch display panel 100 also includes an elastic conductive member 145. Both ends of the elastic conductive member 145 are respectively in contact with the light-guiding conductive member 140 and the electric control board 130 to achieve light-guiding.
  • the conductive member 140 and the electric control board 130 are electrically connected, and the elastic conductive member 145 and the support member 150 are integrally injection molded.
  • the light-guiding conductive element 140 is disposed on the side of the display film 110 facing the support 150 .
  • the projection of the light-guiding conductive element 140 on the display film 110 covers the touch pattern 111 , and the light-guiding conductive element 140 is in contact with the elastic element.
  • the conductive member 142 is in contact with and electrically connected.
  • the light-guiding conductive element 140 is used to electrically connect with the elastic conductive element 142 , so that when the user touches the touch pattern 111 on the display film 110 , the light-guiding conductive element 140 can sense the user's touch operation in a capacitive sensing manner. A corresponding touch signal is generated, and the touch signal is sent to the electronic control board 130 through the elastic conductive member 142, thereby controlling the home appliance body 20 to perform the function corresponding to the touch pattern 111.
  • a through hole 150a is provided on the surface of the support member 150 facing the electric control board 130.
  • molten elastic conductive material such as conductive rubber is injected into the through hole 150a.
  • the above-mentioned elastic conductive member 145 can be formed after cooling, and the position of the elastic conductive member 145 formed in this way is relatively fixed, which not only helps to increase the stability of the physical connection between the elastic conductive member 145 and the support member 150, but also helps to improve the elastic conductivity.
  • the stability of the electrical connection relationship between the component 145 and the electric control board 130 and the light-guiding conductive component 140 is ensured so that the touch signal transmitted from the light-guiding conductive component 140 can be smoothly transmitted to the electric control board 130 .
  • the elastic conductive member 145 and the support member 150 when assembling the integrally formed elastic conductive member 145 and the support member 150 with other components such as the electronic control board 130 and the display film 110 , the elastic conductive member 145 and the support member 150 can be assembled as one component, thereby improving the efficiency of assembly.
  • the assembly efficiency of the touch display panel 100 and the production cost of the touch display panel 100 can be reduced through the injection molding method, so that the touch display panel 100 has good commercial value.
  • the touch principle of the touch display panel 100 is as follows: when the home appliance body 20 is required to implement a specific function, the user can touch the position corresponding to the touch pattern 111 of the display film 110 and cover the touch pattern 111
  • the light-guiding conductive member 140 can sense the user's touch operation and generate a corresponding touch signal.
  • the touch signal is sent to the electric control board 130 through the elastic conductive member 145.
  • the electric control board 130 controls the home appliance body 20 to perform the required functions.
  • the elastic conductive member 142 and the support member 150 are integrally injection molded, which eliminates the need for assembly between the elastic conductive member 142 and the support member 150.
  • the elastic conductive member 142 and the support member 150 can be regarded as one component to be assembled with the electronic control board 130 and the display diaphragm 110, and only the display diaphragm 110 needs to be assembled. Directly pressing on the elastic conductive member 142, and the elastic conductive member 142 directly pressing on the pad of the electric control board 130 can complete the electrical connection between the three.
  • the wire, conductive spring or The conductive foam is connected to the electric control board 130 and the touch signal is transmitted through wires, conductive springs or conductive foam, which eliminates the process of assembling the wires, conductive springs or conductive foam on the bracket 11, thus improving the touch efficiency.
  • the production cost of the touch display panel 100 can also be reduced through integrated injection molding.
  • the elastic conductive member 142 and the support member 150 are integrally injection-molded, so that the position of the elastic conductive member 142 is relatively fixed, thereby preventing the position of the elastic conductive member 142 from being displaced in the touch display panel 100 and causing poor contact, which in turn helps Improving the stability of the electrical connection between the elastic conductive member 142 and the electric control board 130 and the light conductive member 140 allows the touch display panel 100 to maintain normal working conditions for a long time, saving users frequent maintenance of the touch display. The time spent on the panel 100 and the cost of repairing it.
  • the elastic conductive member 142 can be made of a material that has conductive function and is convenient for melt injection molding. Specifically, when the elastic conductive member 142 is made of conductive rubber, since the conductive rubber has good conductivity and flexibility, the electrical properties between the elastic conductive member 142 and the electric control board 130 and the light-conducting conductive member 140 can be enhanced. The connection is stable and easy to be injection molded with the support member 150, thereby reducing the manufacturing difficulty of the elastic conductive member 142 and the support member 150 being integrally molded.
  • the light conductive elements 140 and the elastic conductive elements 142 correspond to the touch patterns 111 one-to-one, that is, there are also multiple elastic conductive elements 142 .
  • the conductive members 142 crosstalk with each other when transmitting touch signals.
  • the support member 150 can be made of insulating materials.
  • the support member 150 can be made of insulating plastic injection molding. This application does not impose specific restrictions on the materials of the support member 150 . .
  • the elastic conductive member 142 may include a first contact portion 151 and a second contact portion 152 .
  • the first contact portion 151 is protruding on the surface of the support member 150 facing the light guide and conductive member 140, and is in contact with and electrically connected to the light guide and conductive member 140, while the second contact portion 152 is protruding on the support member.
  • the surface of 150 faces the electric control board 130 and is in contact with and electrically connected to the electric control board 130 .
  • the first contact portion 151 and the second contact portion 152 are respectively used to contact and electrically connect the light conductive component 140 and the main control board 44 so that the touch signal generated by the light conductive component 140 can be elastically conductive smoothly.
  • Component 142 is transferred to the electrical control board 130.
  • the surface of the first contact portion 151 that contacts the light and conductive member 140 may be configured as an arc surface
  • the surface of the second contact portion 152 that contacts the electronic control board 130 may be configured as an arc surface.
  • the arcuate surface is easier to be squeezed by the elastic conductive member 142 and the electric control board 130, thereby increasing the contact area between the first contact portion 151 and the light-guiding conductive member 140, and increasing the second contact portion.
  • 152 and the electrical control board 130 to improve the stability of the electrical connection between the elastic conductive component 142 and the electrical control board 130 and the light-conducting conductive component 140, and avoid the occurrence of the elastic conductive component 142 and the electrical control board 130 and the conductive component. Poor contact between the photoconductive elements 140 affects the normal operation of the touch display panel 100 .
  • the protruding height of the first abutment portion 151 relative to the support 150 may be set to be greater than or equal to 0.5 mm and less than or equal to 1 mm, which improves the stability of the electrical connection between the elastic conductive member 142 and the light-conducting conductive member 140 .
  • the protruding height of the second contact portion 152 relative to the support member 150 can be set to be greater than or equal to 0.5 mm and less than or equal to 1 mm, which facilitates the contact between the second contact portion 152 and the electric control board 130 and is beneficial. The contact area between the two is increased, thereby improving the stability of the electrical connection between the elastic conductive member 142 and the electric control board 130 .
  • the elastic conductive member 142 and the electric control board 130 and the light-conducting and conductive member 140 are arranged to have an interference fit, which can increase the contact area between the elastic conductive member 142 and the electric control board 130 and the light-conducting and conductive member 140 . and combination strength, so that the elastic conductive member 142 has a more stable physical connection relationship with the electric control board 130 and the light conductive member 140, thereby improving the elastic conductive member 142, the electric control board 130 and the light conductive member 140.
  • the electrical connection is stable so that the touch display panel 100 can work for a long time.
  • the elastic conductive member 142 will not fall off or become loose, which can save the user time and maintenance costs in frequent maintenance of the touch display panel 100 .
  • the light source 120 when the light source 120 is disposed on the side of the light conductor 140 facing the electric control board 130 , the light source 120 is installed on the support 150 ; or, when the light source 120 faces the side of the light guide 141 When the side wall is provided, the light source 120 can also be installed on the support 150 .
  • the light-guiding conductive member 140 in the embodiment of the present application may also include at least one of a conductive silver paste layer, an indium tin oxide layer, and a conductive resin layer, so that the light-guiding conductive member 140 has a high degree of light transmittance. property, so that the light generated in the touch display panel 100 can pass through the light-guiding conductive member 140 and illuminate the display film 110, so that the touch pattern 111 can become brighter and more obvious, so that the user can easily identify the display.
  • the touch pattern 111 on the diaphragm 110 facilitates touching the required touch pattern 111 .
  • the conductive silver paste layer When the conductive silver paste layer is used as the light-conducting conductive element 140, the conductive silver paste layer has good electrical conductivity and adhesion, which can improve the sensing ability and conductivity of the light-conducting conductive element 140 and the electrical properties with the elastic conductive element 142. The connection stability is improved, thereby improving the touch sensitivity of the touch display panel 100 .
  • an embodiment of the present application also provides an assembly process of the touch display panel 100 for assembling the touch display panel 100 as described above.
  • the assembly process of the touch display panel 100 includes the following steps:
  • Step S101 Assemble the light-guiding conductive member 140 on the supporting member 150.
  • Step S102 Assemble the assembled light-guiding conductive member 140 and the support member 150 on the electric control board 130, so that the light-guiding conductive member 140 and the electric control board 130 are electrically connected.
  • Step S103 Assemble the display film 110 on the light-guiding conductive member 140 so that the touch pattern 111 on the display film 110 and the light-guiding conductive member 140 are positioned correspondingly.
  • step S101 when the number of light-guiding conductive members 140 is multiple, the support member 150 can be set to have a plurality of preset installation parts, and each light-guiding conductive member 140 is correspondingly provided at the preset installation part, and then assembled
  • the plurality of light-guiding conductive members 140 and the supporting member 150 are assembled on the electric control board 130, and the display film 110 is assembled on the light-guiding conductive member 140, thereby completing the plurality of light-guiding conductive members 140 and the electric control panel 130.
  • the plurality of light-guiding conductive members 140 are aligned with the touch patterns 111 on the display film 110 in batches. position, effectively improving assembly efficiency.
  • the light-guiding conductive member 140 is disposed between the display film 110 and the electric control board 130.
  • the distance between the display film 110 and the electric control board 130 is adjusted so that the light-guiding conductive member 140 is in contact with the electric control board 130.
  • the display film 110 and the electronic control board 130 are in contact, thereby improving the assembly stability between the light-guiding conductive member 140, the display film 110 and the electronic control board 130.
  • the assembly process of the touch display panel 100 also includes assembly of the light source 120 .
  • step S101 after the light source 120 is assembled on the supporting member 150, the light-guiding conductive member 140 is assembled on the supporting member 150, and the light-incident surface 141a of the light-conducting body 141 is accurately aligned with the light source 120.
  • the light incident surface 141 a is located on the side wall of the light guide 141
  • step S101 the light source 120 can be assembled on the side wall of the light guide 141 , and then the assembled light source 120 and the light guide can be assembled.
  • the conductive member 140 is assembled on the supporting member 150 . As shown in FIG.
  • step S102 when the light incident surface 141 a is disposed toward the electric control board 130 , before step S102 , the light source 120 can be assembled on the electric control board 130 , and then the assembled light-guiding conductive member 140 and the supporting member 150 can be installed. It is assembled on the electric control board 130 and the light incident surface 141a of the light guide 141 is accurately aligned with the light source 120 .
  • Embodiments of the present application also provide an electrical device.
  • the electrical device includes but is not limited to a rice cooker, a water purifier, a coffee machine, a food processor, a washing machine, a water heater, a refrigerator or a vending machine.
  • the electrical device includes a device body and the touch display panel 100 as described above.
  • the touch display panel 100 is disposed on the device body.
  • the support 150 of the touch display panel 100 can be connected to the device body.
  • the display film 110 of the touch display panel 100 can also be used as a part of the housing of the electrical equipment, and is displayed to the user on the surface of the electrical equipment.

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Abstract

本申请公开了一种触控显示面板及其组装工艺以及电器设备，触控显示面板包括显示膜片、导光导电件、光源以及电控板，显示膜片具有透光的触控图案；导光导电件设置于触控图案的入光侧；光源与导光导电件相邻设置，光源发出的光可通过导光导电件以照亮触控图案；电控板设置于导光导电件的背离显示膜片的一侧，与导光导电件以及光源电性连接。将导光导电件设于触控图案的入光侧后，可直接使显示膜片被点亮的区域与触控区域对应，通过安装集成多种功能的导光导电件，能够有效简化触控显示面板内的结构，有效提高组装效率。

Description

触控显示面板及其组装工艺以及电器设备
相关申请
本申请分别要求如下中国专利申请的优先权：
2022年03月10日申请的申请号为202210240133.0，名称为“触控显示面板及其组装工艺以及电器设备”；
2022年03月10日申请的申请号为202220554623.3，名称为“触控显示面板以及电器设备”；
2022年03月10日申请的申请号为202210240160.8，名称为“导光板及其加工方法、触控显示面板及电器设备”；
2022年03月10日申请的申请号为202220554520.7，名称为“导光板、触控显示面板及电器设备”；
2022年03月10日申请的申请号为202220554637.5，名称为“显示装置及家用电器”；
2022年03月10日申请的申请号为202220554484.4，名称为“触控显示装置及家用电器”；
在此以引用形式将上述专利全文并入。
技术领域
本申请涉及显示装置技术领域，尤其涉及一种触控显示面板及其组装工艺以及电器设备。
背景技术
电器设备的控制按键，通常集成于触控显示面板，触控显示面板的显示膜片设有触控图案，控制触控显示面板的背光模组点亮显示膜片对应的区域，以点亮触控图案，可提示用户进行按键操作。当触控显示面板集成多个控制按键时，触控显示面板内各结构的组装工序变得非常复杂，影响组装效率。
发明内容
本申请实施例提供一种触控显示面板及其组装工艺以及电器设备，能够解决触控显示面板的组装工序复杂、组装效率低的问题。
第一方面，本申请实施例提供了一种触控显示面板，包括：
显示膜片，具有透光的触控图案；
导光导电件，设置于所述触控图案的入光侧，所述导光导电件包括导光体和导电体，所述 导光体和所述导电体一体注塑成型；
光源，与所述导光导电件相邻设置，所述光源发出的光可通过所述导光导电件以照亮所述触控图案；及
电控板，设置于所述导光导电件的背离所述显示膜片的一侧，与所述导光导电件以及所述光源电性连接。
第二方面，本申请实施例提供了一种触控显示面板的组装工艺，包括以下步骤：
将导光导电件装配于支撑件上；
将装配好的所述导光导电件以及所述支撑件装配于电控板上，以使所述导光导电件与所述电控板电性连接；
将显示膜片装配于所述导光导电件上，以使所述显示膜片上的触控图案与所述导光导电件在位置上对应设置。
第三方面，本申请实施例提供了一种电器设备，包括设备主体以及如上所述的触控显示面板。
基于本申请实施例的一种触控显示面板及其组装工艺以及电器设备，触控显示面板内，导光导电件集导光功能和导电功能于一体，能够将光源产生的光线传导至显示膜片，以点亮对应的触控按键，以及能够与触控显示面板内的电控板电连接，以在用户接触显示膜片时，用户、导光导电件和电控板能够形成导电回路，以使触控显示面板内能够产生按键信号。将导光导电件设于触控图案的入光侧后，可直接使显示膜片被点亮的区域与触控区域对应，通过安装集成多种功能的导光导电件，能够有效简化触控显示面板内的结构，有效提高组装效率。
附图说明
为了更清楚地说明本申请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地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，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为本申请一种实施例的触控显示面板的剖视示意图；
图2为本申请一种实施例的触控显示面板的立体结构示意图；
图3为本申请一种实施例的导光导电件包括遮光件的剖视示意图；
图4为本申请一种实施例的导光导电件包括反光层的剖视示意图；
图5为本申请一种实施例的光学部设于导光主体朝向显示膜片一侧的剖视示意图；
图6为本申请一种实施例的遮光件连接于导光主体侧壁面的剖视示意图；
图7为本申请一种实施例的光反射层设于电控板的剖视示意图；
图8为本申请一种实施例的显示膜片的剖视示意图；
图9为本申请一种实施例的弹性导电件设于支撑件的立体结构示意图；
图10为本申请一种实施例的弹性导电件设于支撑件的剖视示意图；
图11为本申请一种实施例的触控显示面板的组装工艺的流程图。
附图标记：
100、触控显示面板；
110、显示膜片；111、触控图案；101、透明基材层；102、喷绘层；103、遮光层；1301、
透光玻璃基板；
120、光源；121、针脚；
130、电控板；131、光反射层；
140、导光导电件；141、导光体；1411、导光主体；1412、光学部；142、导电体；143、
遮光件；144、反光层；145、弹性导电件；151、第一抵接部；152、第二抵接部；
141a、入光面；141b、出光面；141c、配合面；
150、支撑件；150a、通孔；
160、导电连接部。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
发明人发现，触控显示面板的显示膜片下设有多个类型的结构件，依次组装各结构件工序复杂，影响组装效率，基于此，本申请实施例提供了一种触控显示面板及其组装工艺以及电器设备。
如图1和图2所示，为本申请一种实施例的触控显示面板100的结构示意图，触控显示面板100用于各种电器设备，包括但不限于：电饭煲、净水器、咖啡机、料理机、洗衣机、热水器、冰箱或贩卖机等。
触控显示面板100包括显示膜片110、导光导电件140、光源120以及电控板130，显示膜片110处于触控显示面板100的表层展示给用户，以供用户接触，例如，显示膜片110可形成触控显示面板100所属电器设备的外壳的一部分。导光导电件140、光源120以及电控板130则设于显示膜片110内侧，隐藏安装。
显示膜片110具有透光的触控图案111，触控图案111的数量可以为多个。触控图案111可以为图形或文字等标识，比如以洗衣机为例，触控图案111可以包括用于表征洗涤和脱水的图案，以及用于表征水量的文字；以电饭煲为例，触控图案111可以包括用于表征煮饭模式的图案；以热水器为例，触控图案111可以包括用于表征水温、水量、用水模式的图案。
光源120用于发出光线，光源120可为LED光源。光源120与导光导电件140相邻设置，导光导电件140设置于触控图案111的入光侧，光源120发出的光线可通过导光导电件140到达触控图案111，以照亮触控图案111，使用户可清楚地看到图案。例如，光源120发出的光线可进入导光导电件140内，并被导光导电件140改变传播方向射出后，到达触控图案111。
光源120可邻近导光导电件140设置，使光源120产生的光线能够以较短地路径到达导光导电件140，降低光损耗。进一步地，光源120可与导光导电件140相接触，以使光源120发射的光线可直接到达导光导电件140。
电控板130设置于导光导电件140的背离显示膜片110的一侧，电控板130与导光导电件140电性连接，电控板130可设有按键模块，当用户触碰显示膜片110对应触控图案111的部分时，用户、导光导电件140以及电控板130形成电性回路，触发按键模块产生按键信号。电控板130还与光源120的针脚121电性连接，以向光源120供电，以及控制光源120的发光状态。
在一些示例性的实施例中，导光导电件140包括导光体141和导电体142，导光体141和导电体142一体成型。导光体141用于导向光源120发出的光到达显示膜片110的触控图案111，以照亮触控图案111。导电体142与显示膜片110相接触，或者，导电体142与显示膜片110间隔设置，以及导电体142用于与电控板130电性连接，以在用户接触显示膜片110对应的区域(与触控图案111对应的区域)时，用户、导电体142以及电控板130形成电性回路，以触发电控板130的按键模块产生按键信号。其中，显示膜片110供用户接触的表面与导电体142的距离小于2mm。
导光体141具有入光面141a、出光面141b以及与导电体142连接的配合面141c，入光面141a与光源120对应设置，出光面141b朝向显示膜片110设置，进一步地，出光面141b对应显示膜片110的触控图案111设置。光源120产生的光线从入光面141a进入导光体141内部，并被改变光线传播方向后射出导光体141，到达显示膜片110的触控图案111。
如图1所示，导光体141包括导光主体1411和光学部1412，导光主体1411和光学部1412一体设置。导光主体1411的至少部分表面形成入光面141a，光学部1412位于导光主体1411的外层，光源120发射的光线从入光面141a进入导光主体1411内到达光学部1412，于光学部1412处改变传播方向后从出光面141b射出导光主体1411，并到达显示膜片110的触控图 案111。
导光主体1411包括透光材料，透光材料包括亚克力(聚甲基丙烯酸甲酯)、PC(聚碳酸酯)、PE(聚乙烯)等，上述透光材料透光性好，易于加工。
光学部1412包括形成于导光主体1411表面的光学网点、凸设于导光主体1411外围的微棱镜结构中、凸设于导光主体1411外围的反光涂层中的至少一种。当光学部1412包括形成于导光主体1411表面的光学网点和凸设于导光主体1411外围的微棱镜结构时，可设计注塑模具内模具型腔的形状，将透光材料直接倒入模具型腔内，成型后，直接获得包括光学部1412和导光主体1411的导光体141；或者，也可在加工出导光主体1411后，在导光主体1411表面直接采用打磨或蚀刻等工艺加工出光学部1412。当光学部1412包括凸设于导光主体1411外围的反光涂层时，可采用双色注塑工艺将导光主体1411和反光图层注塑为一体。
导电体142与电控板130电性连接，导电体142在显示膜片110上的投影覆盖触控图案111，例如，导电体142在显示膜片110上的投影与触控图案111重叠；或者，在导光主体1411厚度方向X上，导电体142在显示膜片110上的投影除覆盖触控图案111外，还覆盖触控图案111外的其他区域。通过设置导电体142与触控图案111两者的相对位置，以便用户根据触控图案111的提示能够准确、便捷地触发触控显示面板100内产生按键信号。
导光导电件140设于触控图案111的入光侧，且导光导电件140可与显示膜片110相接触，例如导光导电件140与显示膜片110贴合或抵接，以在用户接触显示膜片110时，导光导电件140的导电体142能够处于最近的距离处与用户对接，以使触控反应更灵敏。
导电体142与导光体141一体设置，且导电体142避让导光体141的入光面141a以及出光面141b，使光线可顺畅地从入光面141a和出光面141b出入导光体141。
可选地，如图2和图3所示，导光导电件140还包括遮光件143，遮光件143可以由遮光材料制成，以使遮光件143能够阻挡光线。遮光件143设于配合面110c且避让入光面110a以及出光面110b，以使光线能够从入光面110a和出光面110b出入导光主体1411。遮光件143、导光主体1411以及光学部1412一体注塑成型，以便透光件110和遮光件143两者一起装配于触控显示面板100的内部空间。
进入导光主体1411内的其中一部分光线被遮光件143吸收，另一部分光线到达光学部1412。导光主体1411内到达光学部1412的光线被光学部1412改变传播方向后，其中一部分光线到达遮光件143并被遮光件143吸收，另一部分光线从出光面110b射出导光主体1411。同时，遮光件143还能阻隔外部光线进入当前的导光主体1411内，防止光线在不同的导光主体1411之间串扰。进一步地，遮光件143覆盖配合面110c且相接于入光面110a和出光面110b，以阻挡光线从邻近入光面110a和出光面110b的区域出入导光主体1411。
可选地，如图4所示，导光导电件140还包括反光层144，一体成型于导光主体1411且避让入光面110a和出光面110b，即反光层144也可设于配合面110c，例如，反光层144与导光主体1411采用双色注塑工艺一体成型。当导光导电件140还包括遮光件143时，反光层144连接于配合面110c，遮光件143覆盖反光层144，进入导光主体1411内的光线可被反光层144反射，以使更多的光线从出光面110b射出，提高光线利用率。
需要说明的是，当导光导电件140包括遮光件143和反光层144中的至少一个时，可选地，设置遮光件143和反光层144连接于配合面110c未被导电体142连接的部分。
遮光件143由遮光材料制得，例如遮光材料包括遮光油墨等。反光层144由反光材料制得，例如反光材料包括反光金属等。在其他一些实施例中，导光导电件140也可不包括反光层144，遮光件143由具有遮光性和反光性的材料制得，例如，具有遮光性和反光性的材料由遮光材料和反光材料混合获得，使制得的遮光件143兼具遮光性和反光性。
在一些示例性的实施例中，导电体142由导电的遮光材料制成，使导电体142具有导电性和遮光性。例如，导电的遮光材料可为兼具导电性和遮光性的导电石墨；或者，导电的遮光材料可包括导电材料和遮光材料，由导电材料发挥导电性、遮光材料发挥遮光性。当导电的遮光材料包括导电材料和遮光材料时，导电材料和遮光材料两者可混合后制得具有导电性和遮光性的导电体142；或者，导电材料形成导电层，遮光材料形成遮光层，导电层与遮光层一体加工成型获得导电体142。
在一些示例性的实施例中，导电体142由导电的反光材料制成，使导电体142具有导电性和反光性。例如，导电的反光材料可为兼具导电性和遮光性的导电金属；或者，导电的反光材料可包括导电材料和反光材料，使导电体142具有导电性和反光性。当导电的遮光材料包括导电材料和反光材料时，导电材料和反光材料两者可混合后制得具有导电性和反光性的导电体142；或者，导电材料形成导电层，反光材料形成反光层，导电层与反光层一体加工成型获得导电体142。
导电体142还可包括基料，基料能够与导光体141的透光材料稳定地连接。例如，基料可与制备导光体141的透光材料相同，以提高导电体142与导光体141的连接稳定性。基料可分别与导电材料、遮光材料以及反光材料混合，以提高遮光材料、反光材料与导光体141的连接稳定性，例如，基料可与遮光材料混合后制得遮光层，基料可与导电材料混合后制得导电层，基料可与反光材料混合后制得反光层，或者基料、导电材料、遮光材料以及反光材料四者混合后，制得兼具导电性、遮光性和反光性的导电体142。
在一些示例性的实施例中，导电体142由导电的弹性材料制成，以使导电体142能够与电控板130抵接，维持导电体142与电控板130电性连接的稳定性。导电的弹性材料包括导电材 料和弹性材料，可将导电材料和弹性材料混合后制得具有弹性的导电体142；或者，导电材料形成导电层，弹性材料形成弹性层，导电层与弹性层一体加工成型获得导电体142，导光导电件140安装于触控显示面板100的内部空间时，具有弹性的导电体142分别与显示膜片110和电控板130抵接。
弹性材料可具有遮光性，或者，当导电体142由导电的遮光材料制成时，导电体142还包括弹性材料，使制得的导电体142兼具导电性、遮光性和弹性。
当导电体142由导电的反光材料制成时，导电体142还包括弹性材料，使制得的导电体142兼具导电性、反光性和弹性。
在一些示例性的实施例中，导光体141与导电体142通过双色注塑工艺一体成型。另外，当导电体142包括导电层、遮光层、反光层、弹性层等层结构时，各层结构也采用双色注塑工艺一体成型。
其中，在导光体141厚度方向X，导光体141具有相对设置的第一表面和第二表面，以及导光体141具有连接第一表面和第二表面的侧壁面，第一表面形成出光面141b，侧壁面和第二表面中的其中一部分形成入光面141a、另一部分形成配合面141c。
当导光体141的侧壁面的其中一部分形成入光面141a时，导光体141的侧壁面中的剩余部分和第二表面形成配合面141c，光源120于导光体141外侧对应入光面141a设置(即侧入式光源)。此时，导电体142连接于第二表面，在导光体141厚度方向X，将导电体142设于导光主体1411和电控板130之间。当导光导电件140还包括遮光件143时，遮光件143设于导光主体1411参与形成配合面141c的侧壁面。进一步地，导电体142可朝向显示膜片110的一侧延伸至导光主体1411参与形成配合面141c的侧壁面，此时，遮光件143可直接连接于导光主体1411参与形成配合面141c的侧壁面，且导电体142延伸至连接于遮光件143外侧，或者，也可设置导电体142延伸至连接于导光主体1411参与形成配合面141c的侧壁面，此时，设置遮光件143处于导电体142外侧并连接于导电体142。更进一步地，导光导电件140安装于触控显示面板100的内部空间时，导电体142可直接与显示膜片110相接触。其中，当导电体142具有遮光性时，可设置导光导电件140不包括遮光件143，直接由导电体142阻挡杂散光出入导光主体1411。
如图5所示，当导光体141的第二表面形成入光面141a时，光源120设置于电控板130上以与入光面141a对应设置(即直下式光源)，导光体141的侧壁面形成配合面141c，导电体142连接于配合面141c，具体地，导光体141的全部侧壁面形成配合面141c，导电体142连接于配合面141c以使导电体142围设于导光主体1411外围。更进一步地，当导光导电件140安装于触控显示面板100的内部空间时，导电体142可直接与显示膜片110相接触。当导 电体142具有遮光性时，可设置导光导电件140不包括遮光件143。
可选地，如图5所示，光学部1412设于导光主体1411朝向显示膜片110的一侧，此时，光学部1412和导光主体1411两者朝向显示膜片110的表面形成第一表面，或者，如图3所示，光学部1412设于导光主体1411显示膜片110的一侧，此时，光学部1412和导光主体1411两者朝向电控板130的表面形成第二表面。其中，光线于光学部1412处能够被改变光线传播方向，例如，发生折射、反射等，以至少能够提高光源120的光线利用率，并通过设计光学部1412的形状，还能调节光线到达显示膜片110的分布状态，例如，通过光学部1412调节光线使到达显示膜片110的光线分布更均匀等。
可选地，如图6和图7所示，电控板130朝向导光体141的表面设置有光反射层131，光反射层131能够将光线反射至导光导电件140，提高光源120发射的光线到达显示膜片110的利用率。图6中，设置光源120为灯条，光反射层131还覆盖灯条的电路板且避让灯条的灯珠，以使灯珠发射的光线能够到达导光体141。
在一些示例性的实施例中，如图8所示，显示膜片110包括透明基材层101、喷绘层102及遮光层103。透明基材层101可以用于承载喷绘层102及遮光层103。喷绘层102喷绘形成于透明基材层101内表面，喷绘层102包括透光的触控图案111。遮光层103设置于透明基材层101内表面或者外表面，遮光层103对应触控图案111的位置具有透光区，即透光区与喷绘层102上的触控图案正对设置。遮光层103用于与喷绘层102配合，将喷绘层102中未设置触控图案的其他区域遮盖住，防止光线从这些区域透过，这样在光源120发光时，只有触控图案被点亮，以与其他区域形成对比。
透明基材层101可以为透光材料制成，例如，透明基材层101可以为玻璃板、PET(聚对苯二甲酸乙二醇酯)层、PVC(聚氯乙烯)层等。透明基材层101可以为非透光材料制成，例如，透明基材层101可以为金属制成，透明基材层101可以为金属板，且金属板设有形成为阵列的通光孔，通光孔形成的区域与触控图案111正对，即透明基材层101在与触控图案111正对的区域设有通光孔。
需要说明的是，当透明基材层101为PET层时，触控显示装置100还可以包括透光玻璃基板1301，显示膜片110设置于透光玻璃基板1301的内表面，当遮光层103设置于透明基材层101的外表面时，遮光层103粘接于透光玻璃基板1301的内表面，当遮光层103设置于透明基材层101的内表面时，透明基材层101粘接于透光玻璃基板1301的内表面。
可选地，触控显示面板100还包括支撑件150，支撑件150设置于显示膜片110与电控板130之间，支撑件150可连接于显示膜片110和电控板130中的至少一个。当触控显示面板100安装于电器设备时，支撑件150可与电器设备的结构件连接，例如结构件可为电器设备的 壳体。其中，导光导电件140设置于支撑件150上，提高导光导电件140的安装稳定性，例如，设置导光导电件140的导光主体1411和导电体142中的至少一个与支撑件150连接。当设置导电体142与支撑件150连接时，可将导电体142与支撑件150一体注塑成型。当设置导光主体1411与支撑件150连接时，可将导光主体1411与支撑件150一体注塑成型。
可选地，导光导电件140的导电体142还电连接有导电连接部160，导电连接部160可包括导电胶，导电体142通过导电胶粘接于电控板130，导电体142通过导电胶与电控板130电连接；导电连接部160也可包括焊锡料，将导电体142采用焊锡的方式固定于电控板130，且与电控板130电性连接。本申请实施例对导电体142与电控板130的电连接方式不做具体限定。
请参阅图9-10，可选地，触控显示面板100还包括弹性导电件145，弹性导电件145的两端分别与导光导电件140以及电控板130抵接，以实现与导光导电件140以及电控板130电性连接，且弹性导电件145与支撑件150一体注塑成型。此时，导光导电件140设置于显示膜片110的朝向支撑件150的一侧，导光导电件140在显示膜片110上的投影覆盖触控图案111，且导光导电件140与弹性导电件142抵接并电性连接。导光导电件140用于与弹性导电件142电性连接，以使当用户触摸显示膜片110上的触控图案111时，导光导电件140能够以电容感应的方式感应到用户的触摸操作并产生相应的触控信号，触控信号通过弹性导电件142发送给电控板130，从而控制家电本体20执行与该触控图案111对应的功能。
如图9和图10所示，支撑件150面向电控板130地表面上设置有通孔150a，在加工过程中，将熔融的弹性导电材料如导电橡胶注塑到通孔150a内，待导电橡胶冷却后可以形成上述弹性导电件145，而以该方式形成的弹性导电件145位置相对固定，不仅有助于增加弹性导电件145与支撑件150的物理连接的稳定性，且有利于提高弹性导电件145与电控板130以及导光导电件140之间电性连接关系的稳定性，以使从导光导电件140传递过来的触控信号可以顺利地传递至电控板130上。此外，将一体成型的弹性导电件145以及支撑件150与其他部件如电控板130、显示膜片110组装时，可将弹性导电件145与支撑件150视为一个部件进行组装，从而提高了触控显示面板100的组装效率，且通过注塑的方法可以减少触控显示面板100的生产成本，使触控显示面板100具有良好的商业价值。
具体地，触控显示面板100的触控原理如下：在需要家电本体20实现某一具体功能时，用户可以触摸显示膜片110的触控图案111对应的位置，而覆盖该触控图案111的导光导电件140能够感应到用户的触摸操作并产生相应的触控信号，触控信号通过弹性导电件145发送给电控板130，电控板130控制家电本体20执行需要实现的功能。
弹性导电件142与支撑件150一体注塑成型，可省去弹性导电件142与支撑件150之间的组 装过程，在对触控显示面板100进行组装的过程中，可将弹性导电件142与支撑件150视为一个部件与电控板130和显示膜片110组装，且只需将显示膜片110直接压在弹性导电件142上，以及弹性导电件142直接压在电控板130的焊盘上即可完成三者之间的电性连接，相较于相关技术中，将导线、导电弹簧或者导电泡棉与电控板130连接，通过导线、导电弹簧或者导电泡棉进行触控信号传输的方案，省去了导线、导电弹簧或者导电泡棉组装于支架11上的过程，从而提高了触控显示面板100的组装效率，通过一体注塑成型的方式也可以减少触控显示面板100的生产成本。且弹性导电件142与支撑件150一体注塑成型，使弹性导电件142的位置相对固定，避免弹性导电件142在触控显示面板100内出现位置偏移而导致接触不良的情况，进而有助于提高弹性导电件142与电控板130以及导光导电件140之间电性连接的稳定性，使得触控显示面板100可以长时间地保持正常的工作状态，为用户节省了频繁检修触控显示面板100所花费的时间以及检修成本。
弹性导电件142可以由具有导电功能以及便于熔融注塑的材料制作而成。具体地，在弹性导电件142采用导电橡胶作为制作材料时，由于导电橡胶具有良好的导电性和柔韧性，可以增强弹性导电件142与电控板130以及导光导电件140之间的电性连接的稳定性，且便于与支撑件150一体注塑成型，从而降低弹性导电件142与支撑件150一体成型的制作难度。
可以理解的是，在触控图案111有多个时，导光导电件140以及弹性导电件142与触控图案111一一对应，也即弹性导电件142也具有多个，此时为了避免弹性导电件142传输触控信号时相互串扰，支撑件150可以由绝缘材料制作而成，例如，支撑件150的制作材料可以为绝缘塑料注塑成型，本申请对支撑件150的制作材料不做具体限制。
参阅图10，弹性导电件142可以包括第一抵接部151和第二抵接部152。其中，第一抵接部151凸设于支撑件150的朝向导光导电件140的表面，且与导光导电件140抵接并电性连接，而第二抵接部152凸设于支撑件150的朝向电控板130的表面，且与电控板130抵接并电性连接。第一抵接部151与第二抵接部152分别用于抵接导光导电件140以及主控板44并电性连接，以使得导光导电件140产生的触控信号可以顺利地弹性导电件142传递至电控板130上。
在一些实施例中，第一抵接部151与导光导电件140抵接的表面可以设置为弧形面，第二抵接部152与电控板130抵接的表面设置为弧形面，弧形面相比于平面更易于被弹性导电件142与电控板130挤压，继而可以增大第一抵接部151与导光导电件140的抵接面积，以及增大第二抵接部152与电控板130的抵接面积，以提高弹性导电件142与电控板130以及导光导电件140之间电性连接的稳定性，避免出现弹性导电件142与电控板130以及导光导电件140之间接触不良而影响触控显示面板100正常运行的情况。
在一些实施例中，可以将第一抵接部151相对于支撑件150的凸起高度设置为大于或等于 0.5mm且小于或等于1mm，提高弹性导电件142与导光导电件140之间的电性连接的稳定性。同理，可以将第二抵接部152相对于支撑件150的凸起高度设置为大于或等于0.5mm且小于或等于1mm，便于第二抵接部152与电控板130抵接且有利于增加二者之间的接触面积，进而提高弹性导电件142与电控板130之间的电性连接的稳定性。
在一些实施例中，将弹性导电件142与电控板130以及导光导电件140均设置为过盈配合，可以增加弹性导电件142与电控板130以及导光导电件140之间接触面积和结合力度，使弹性导电件142与电控板130以及导光导电件140之间具有更加稳定的物理连接关系，进而提高弹性导电件142与电控板130以及导光导电件140之间的电性连接稳定性，以使触控显示面板100可以长时间的工作。此外，弹性导电件142不会存在脱落或者松动的情况，可以为用户节省频繁检修触控显示面板100而花费的时间以及检修成本。
可选地，如图10所示，当光源120设于导光导电件140朝向电控板130的一侧时，设置光源120安装于支撑件150；或者，当光源120朝向导光体141的侧壁面设置时，也可将光源120安装于支撑件150。
在其他一些实施例中，本申请实施例的导光导电件140也可包括导电银浆层、氧化铟锡层以及导电树脂层中的至少一种，使得导光导电件140具有高度的透光性，从而可以让触控显示面板100内产生的光可以透过导光导电件140并照射在显示膜片110上，使得触控图案111得以变得更加明亮、更加明显，以便于用户识别显示膜片110上的触控图案111，方便对所需要的触控图案111进行触摸。在采用导电银浆层作为导光导电件140时，导电银浆层具有良好的导电性能以及粘接性，可以提高导光导电件140的感应能力、导电能力以及与弹性导电件142的电性连接稳定性，进而提高触控显示面板100的触控灵敏度。
如图11所示，本申请实施例还提供了一种触控显示面板100的组装工艺，用于组装如上所述的触控显示面板100。触控显示面板100的组装工艺包括以下步骤：
步骤S101、将导光导电件140装配于支撑件150上。
步骤S102、将装配好的导光导电件140以及支撑件150装配于电控板130上，以使导光导电件140与电控板130电性连接。
步骤S103、将显示膜片110装配于导光导电件140上，以使显示膜片110上的触控图案111与导光导电件140在位置上对应设置。
其中，步骤S101中，当导光导电件140的数量为多个时，可设置支撑件150具有多个预设安装部，各导光导电件140对应设于预设安装部，再将装配好的多个导光导电件140以及支撑件150装配于电控板130上，以及将显示膜片110装配于导光导电件140上，即可完成多个导光导电件140与电控板130、多个导光导电件140与显示膜片110上的触控图案111批量对 位，有效提高组装效率。
组装触控显示面板100时，导光导电件140设于显示膜片110和电控板130之间，调节显示膜片110和电控板130之间的间距，使导光导电件140分别与显示膜片110和电控板130抵接，提高导光导电件140、显示膜片110和电控板130三者之间的组装稳定性。
触控显示面板100的组装工艺还包括对光源120的组装。
在步骤S101前，将光源120装配于支撑件150后，再将导光导电件140装配于支撑件150，并使导光体141的入光面141a与光源120准确对位。如图7所示，当入光面141a位于导光体141的侧壁面时，可在步骤S101前，将光源120装配于导光体141的侧壁面，再将装配好的光源120和导光导电件140装配于支撑件150。如图8所示，当入光面141a朝向电控板130设置时，可在步骤S102前，将光源120装配于电控板130后，再将装配好的导光导电件140以及支撑件150装配于电控板130上，并使导光体141的入光面141a与光源120准确对位。
本申请实施例还提供了一种电器设备，电器设备包括但不限于电饭煲、净水器、咖啡机、料理机、洗衣机、热水器、冰箱或贩卖机等。
电器设备包括设备主体以及如上所述的触控显示面板100，触控显示面板100设置于设备主体上，例如，触控显示面板100的支撑件150可连接于设备主体。其中，触控显示面板100的显示膜片110还可作为电器设备的部分壳体，处于电器设备的表层展示给用户。
本实施例的附图中相同或相似的标号对应相同或相似的部件；在本申请的描述中，需要理解的是，若有术语“上”、“下”、“左”、“右”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，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，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的具体含义。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种触控显示面板，其中，包括：
    显示膜片，具有透光的触控图案；
    导光导电件，设置于所述触控图案的入光侧，所述导光导电件包括导光体和导电体，所述导光体和所述导电体一体注塑成型；
    光源，与所述导光导电件相邻设置，所述光源发出的光可通过所述导光导电件以照亮所述触控图案；及
    电控板，设置于所述导光导电件的背离所述显示膜片的一侧，与所述导光导电件以及所述光源电性连接。
  2. 根据权利要求1所述的触控显示面板，其中，
    所述导光体具有入光面、出光面以及配合面，所述入光面与所述光源对应设置，所述出光面朝向所述触控图案设置；
    所述导电体连接于所述配合面且避让所述入光面以及所述出光面；所述导电体还与所述电控板电性连接，且在所述导光体的厚度方向，所述导电体在所述显示膜片上的投影覆盖所述触控图案。
  3. 根据权利要求2所述的触控显示面板，其中，在所述导光体的厚度方向，所述导光体设于所述显示膜片和所述导电体之间，所述导光体的所述出光面与所述显示膜片的背面贴设。
  4. 根据权利要求2所述的触控显示面板，其中，所述入光面位于所述导光体的侧壁面，所述光源设置于所述导光体的侧壁面以与所述入光面对应设置；沿所述导光体厚度方向，所述出光面与所述配合面相对设置。
  5. 根据权利要求2所述的触控显示面板，其中，沿所述导光体厚度方向，所述入光面与所述出光面相对设置，所述入光面朝向所述电控板设置，所述光源设置于所述电控板上以与所述入光面对应设置，所述配合面位于所述导光体的侧壁面。
  6. 根据权利要求1-5任一项所述的触控显示面板，其中，所述导光体包括：
    导光主体；
    光学部，位于所述导光主体朝向所述显示膜片的一侧；和/或，所述光学部位于所述导光主体背离所述显示膜片的一侧。
  7. 根据权利要求6所述的触控显示面板，其中，所述光学部包括形成于所述导光主体表面的光学网点、凸设于所述导光主体外围的微棱镜结构中的至少一种。
  8. 根据权利要求1-7任一项所述的触控显示面板，其中，
    所述导光导电件还包括：
    遮光件，设于所述配合面并避让所述入光面以及所述出光面，且所述遮光件与所述导光体一体注塑成型；和/或，
    所述导光导电件还包括：
    反光层，一体成型于所述导光主体，且所述反光层避让所述入光面和所述出光面；
    遮光件，覆盖所述反光层，且避让所述入光面以及所述出光面。
  9. 根据权利要求1-8任一项所述的触控显示面板，其中，
    所述导电体由导电的遮光材料制成；或，
    所述导电体由导电的反光材料制成；或，
    所述导电体由导电的弹性材料制成，以与所述电控板抵接。
  10. 根据权利要求1-9任一项所述的触控显示面板，其中，所述导光体与所述导电体通过双色注塑工艺成型；
    所述触控显示面板还包括：
    支撑件，设置于所述显示膜片与所述电控板之间，所述导光导电件设置于所述支撑件上；和/或，
    所述触控显示面板还包括：
    光反射层，设于所述电控板朝向所述导光导电件的表面。
  11. 根据权利要求1-10任一项所述的触控显示面板，其中，所述触控显示面板还包括：
    支撑件，设置于所述显示膜片与所述电控板之间，所述导光导电件设置于所述支撑件上；
    弹性导电件，与所述支撑件一体注塑成型，且所述弹性导电件的两端分别与所述导光导电件以及所述主控板抵接，所述导光导电件与所述主控板电性连接。
  12. 根据权利要求11所述的显示装置，其中，所述弹性导电件包括：
    第一抵接部，凸设于所述支撑件的朝向所述导光导电件的表面，且与所述导光导电件抵接并电性连接；
    第二抵接部，凸设于所述支撑件的朝向所述主控板的表面，且与所述主控板抵接并电性连接。
  13. 根据权利要求11-12任一项所述的显示装置，其中，
    所述触控图案透光，且所述导光导电件包括导电银浆层、氧化铟锡层以及导电树脂层中的至少一种；和/或，
    所述第一抵接部与所述导光导电件抵接的表面为弧形面，所述第二抵接部与所述主控板抵接的表面为弧形面；
  14. 一种触控显示面板的组装工艺，其中，包括以下步骤：
    将导光导电件装配于支撑件上；
    将装配好的所述导光导电件以及所述支撑件装配于电控板上，以使所述导光导电件与所述电控板电性连接；
    将显示膜片装配于所述导光导电件上，所述显示膜片上的触控图案与所述导光导电件在位置上对应设置。
  15. 一种电器设备，其中，包括设备主体和触控显示面板，所述触控显示面板，包括：
    显示膜片，具有透光的触控图案；
    导光导电件，设置于所述触控图案的入光侧，所述导光导电件包括导光体和导电体，所述导光体和所述导电体一体注塑成型；
    光源，与所述导光导电件相邻设置，所述光源发出的光可通过所述导光导电件以照亮所述触控图案；及
    电控板，设置于所述导光导电件的背离所述显示膜片的一侧，与所述导光导电件以及所述光源电性连接。
PCT/CN2023/078744 2022-03-10 2023-02-28 触控显示面板及其组装工艺以及电器设备 WO2023169256A1 (zh)

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