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WO2023280223A1 - 显示装置、显示装置的加工工艺和电器设备 - Google Patents

显示装置、显示装置的加工工艺和电器设备 Download PDF

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Publication number
WO2023280223A1
WO2023280223A1 PCT/CN2022/104164 CN2022104164W WO2023280223A1 WO 2023280223 A1 WO2023280223 A1 WO 2023280223A1 CN 2022104164 W CN2022104164 W CN 2022104164W WO 2023280223 A1 WO2023280223 A1 WO 2023280223A1
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WO
WIPO (PCT)
Prior art keywords
light
layer
display device
pattern
transmitting plate
Prior art date
Application number
PCT/CN2022/104164
Other languages
English (en)
French (fr)
Inventor
张健
孙荟颖
李建平
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 CN202110766946.9A external-priority patent/CN115602073A/zh
Priority claimed from CN202121535316.2U external-priority patent/CN215933113U/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 WO2023280223A1 publication Critical patent/WO2023280223A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/08Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • G09F13/10Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers using transparencies

Definitions

  • the present application relates to the technical field of display devices, and in particular to a display device, a processing technology of the display device, and electrical equipment.
  • the control buttons of the electrical equipment are usually integrated into the display device, so that the patterns or characters displayed on the display device can conveniently and quickly instruct the user to perform the target operation.
  • the structure of the display device is usually such that the base material is clamped between PET films on both sides.
  • the embodiments of the present application provide a display device, a processing technology of the display device, and electrical equipment.
  • an embodiment of the present application provides a display device, including:
  • the light-transmitting plate forming at least part of the housing of the device to which the display device belongs;
  • a texture layer, a pattern layer and a light-shielding layer, the pattern layer and the light-shielding layer are arranged on the back of the texture layer, the light-shielding layer is attached to the outer surface of the light-transmitting plate, and the light-shielding layer includes The pattern on the pattern layer is facing the light-transmitting area;
  • a light-emitting device the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the light-transmitting plate is a glass plate; alternatively, the light-transmitting plate is a metal plate, and the metal plate is provided with light-through holes formed in an array in a region facing the pattern.
  • the light-shielding layer is bonded to the light-transmitting plate.
  • the light-shielding layer is an ink layer, and the ink layer is silk-screened on the back of the texture layer.
  • the pattern layer is formed on the back of the texture layer by spray painting.
  • it further includes: a PVC layer, the light-shielding layer is bonded to the PVC layer, and the PVC layer is bonded to the light-transmitting plate.
  • it further includes: a PET layer, the PET layer is disposed on the side of the texture layer away from the pattern layer.
  • the light emitting device includes:
  • a light guide plate, the light guide plate is located on the inner surface of the light-transmitting plate, and the top surface of the light-guiding plate is opposite to the inner surface of the light-transmitting plate;
  • the side light emitting element is installed on the first side surface of the light guide plate;
  • a circuit board, the side light-emitting element is electrically connected to the circuit board
  • Conductive foam the conductive foam is sandwiched between the light guide plate and the circuit board.
  • the pins of the side light-emitting element are electrically connected to the circuit board, and the height of the portion of the pins between the light guide plate and the circuit board is smaller than the height of the conductive foam.
  • the light guide plate is inclined relative to the circuit board, and the distance from the end of the light guide plate away from the pins to the circuit board is greater than the distance from the other end of the light guide plate to the circuit board. distance.
  • the light emitting device includes:
  • a digital tube the digital tube is installed on the inner surface of the light-transmitting plate
  • a touch element the touch element is sandwiched between the light-transmitting plate and the nixie tube.
  • the present application discloses a processing technology of a display device, including:
  • a PET film is processed, and the PET film includes a PET layer, a texture layer, a pattern layer and a light-shielding layer stacked in sequence;
  • the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the processing of the PET film includes:
  • a texture layer is screen-printed on the back side of the PET layer
  • a light-shielding layer is silk-printed on the surface of the pattern layer away from the texture layer, and a light-transmitting area is provided in a region facing the pattern to form the PET film.
  • the silk printing of the texture layer on the back side of the PET layer includes:
  • a texture layer attached to the back of the PET layer is formed on the back of the PET layer by multi-degree silk screen printing.
  • the present application discloses a processing technology of a display device, including:
  • a light-shielding layer is screen-printed on the outer surface of the light-transmitting plate, and the light-shielding layer is provided with a light-transmitting area;
  • the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the present application discloses an electrical device, including any one of the display devices described above, and the light-transmitting plate is a part of a housing of the electrical device.
  • the display device, the processing technology of the display device, and the electrical equipment provided in the embodiments of the present application can reduce the placement process and improve the production efficiency during processing by directly providing the texture layer, the pattern layer, and the light-shielding layer on the outer surface of the equipment casing. And a part of the assembly structure can be omitted, and the installation space occupied is smaller. When the whole display device is not lit, the shielding effect is good, and when the display device is lit, the pattern is displayed more clearly.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • Fig. 2 is a schematic structural view of a PET film for processing a display device provided by an embodiment of the present application
  • Fig. 3 is one of the schematic diagrams of the intermediate steps of processing the display device provided by the embodiment of the present application.
  • Fig. 4 is the second schematic diagram of the intermediate steps of processing the display device provided by the embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a light emitting device in a display device provided by an embodiment of the present application.
  • FIG. 6 is an exploded view of a partial structure of a light emitting device in a display device provided by an embodiment of the present application
  • FIG. 7 is one of the schematic flow charts of the processing technology of the display device provided by the embodiment of the present application.
  • FIG. 8 is the second schematic flow diagram of the manufacturing process of the display device provided by the embodiment of the present application.
  • PET film 100 PET layer 110, texture layer 121, pattern layer 130, light shielding layer 140, PVC layer 150, glue 160;
  • Light emitting device 300 Light emitting device 300 , light guide plate 310 , reflective layer 311 , light guide texture 312 , side light emitting element 320 , pin 321 , conductive foam 330 , circuit board 340 , touch spring 351 , digital tube 360 .
  • connection and “connected” should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary.
  • the first feature may be in direct contact with the first feature or the first feature and the second feature may pass through the middle of the second feature.
  • Media indirect contact Moreover, “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • a display device according to an embodiment of the present application will be described below with reference to FIGS. 1-6 .
  • the display device can be applied to various electrical appliances, including but not limited to: rice cookers, water purifiers, coffee machines, cooking machines, washing machines, water heaters, refrigerators, or vending machines.
  • the display device includes: a light-transmitting plate 220 , a texture layer 121 , a pattern layer 130 , a light-shielding layer 140 and a light emitting device 300 .
  • the texture layer 121 , the pattern layer 130 and the light-shielding layer 140 are arranged on the outer surface side of the light-transmitting plate 220 , and the light-emitting device 300 is arranged on the inner surface side of the light-transmitting plate 220 .
  • the light-transmitting plate 220 can transmit light, and the light is irradiated outward from the light-emitting device 300 inside, at least part of the light passes through the light-transmitting plate 220, and irradiates on the pattern of the pattern layer 130, and the pattern is formed relatively with other surrounding areas.
  • the large brightness contrast difference allows users to see patterns clearly.
  • the light-transmitting plate 220 forms at least a part of the housing of the device to which the display device belongs, in other words, the light-transmitting plate 220 may be a part of the housing of the device to which the display device belongs.
  • the pattern layer 130 and the light-shielding layer 140 are directly provided on the device casing, so that part of the assembly structure there can be omitted, and the installation space occupied is smaller.
  • the pattern layer 130 includes a plurality of patterns, and the patterns can be logos such as graphics or text.
  • the pattern layer 130 can include patterns for representing washing and dehydration, and text for representing the amount of water; taking an electric cooker as an example,
  • the pattern layer 130 may include a pattern representing a rice cooking mode.
  • Each pattern may correspond to a button, for example, the light emitting device 300 inside the pattern may be provided with a corresponding control button.
  • the light-shielding layer 140 is used to cooperate with the pattern layer 130 to cover other areas of the pattern layer 130 that are not provided with patterns, so as to prevent light from passing through these areas, so that when the light emitting device 300 emits light, only the pattern is lit to distinguish it from other areas. area in contrast.
  • the light-shielding layer 140 includes a light-transmitting area, and the light-transmitting area is disposed opposite to the pattern on the pattern layer 130 .
  • the light emitted by the light-emitting device 300 can pass through the light-transmitting area of the light-shielding layer 140 and irradiate the pattern of the pattern layer 130, so that the pattern is lit; is lit.
  • the light-transmitting area of the light-shielding layer 140 can be set to be smaller than the pattern of the pattern layer 130, that is, the light-shielding layer 140 can be set on the edge with respect to the pattern layer 130, which can reduce the alignment between the pattern layer 130 and the light-shielding layer 140. Accuracy requirements ensure that no light leaks from the edges of the patterned layer 130 .
  • the light-shielding layer 140 is pasted on the outer surface of the light-transmitting plate 220 . It can be understood that the pattern in the pattern layer 130 corresponding to the light-transmitting area of the light-shielding layer 140 can also be pasted on the outer surface of the light-shielding plate 220 .
  • the outer surface of the light-transmitting plate 220 refers to the side of the light-transmitting plate 220 facing the outer surface of the electrical equipment.
  • the pattern layer 130 and the light-shielding layer 140 are arranged on the back of the texture layer 121, the front of the texture layer 121 faces the user, and the texture layer 121 is used to cover the pattern layer 130 below, so that when the light emitting device 300 is not emitting light, the pattern can be seen through the texture layer 121 When the layer 130 is used, the pattern of the pattern layer 130 is displayed in black.
  • the light-emitting device 300 is installed on the inner surface of the light-transmitting plate 220 , and can emit light toward the light-transmitting plate 220 when the light-emitting device 300 is powered on.
  • the irradiation direction of the light is: the light emitting device 300 —the transparent plate 220 —the light shielding layer 140 —the pattern layer 130 —the texture layer 121 .
  • a pattern layer 130 and a light-shielding layer 140 are respectively provided on both sides of the substrate.
  • This method requires glue 160 to be pasted on both sides of the substrate. It is necessary to ensure that the light-shielding layer 140 and the pattern layer 130 across the substrate are aligned. The operation is difficult and the yield is difficult to guarantee.
  • the texture layer 121 , the pattern layer 130 , the light-shielding layer 140 and the light-transmitting plate 220 are sequentially arranged from the outside to the inside, that is, the pattern layer 130 and the light-shielding layer 140 are arranged on the same side of the light-shielding plate 220 . This can reduce the placement process and improve the production efficiency during processing.
  • the texture layer 121, the pattern layer 130 and the light-shielding layer 140 are all arranged on the outer surface side of the light-transmitting plate 220, which can reduce the number of diaphragms, which can reduce the power of the light-emitting device 300 or reduce the brightness of the light-emitting device 300 , prolong the life of the light emitting device 300 .
  • the patching process can be reduced, the production efficiency during processing can be improved, and part of the assembly can be omitted.
  • the structure occupies less installation space, and when the entire display device is not lit, the shielding effect is good, and when the display device is lit, the pattern is displayed more clearly.
  • the light-shielding layer 140 is bonded to the light-transmitting plate 220 .
  • the light-shielding layer 140 can be bonded to the outer surface of the light-transmitting plate 220 by glue 160 .
  • the pattern exposed from the light-transmitting area of the light-shielding layer 140 may also be adhered to the outer surface of the light-transmitting plate 220 .
  • the pattern layer 130 can be formed on the back of the texture layer 121 by spray painting, and the pattern layer 130 formed by spray painting has better clarity, color reproduction, saturation and hiding effect.
  • the light-shielding layer 140 can be an ink layer, and the ink layer is screen-printed on the back of the texture layer 121, and then the pattern layer 130 is spray-painted and formed on the back of the texture layer 121, and a part of the back of the texture layer 121 is patterned, and then the light-shielding layer 140
  • the silk screen is printed on the back of the texture layer 121, and the area where the pattern is located is left blank to form a light-transmitting area, and in order to prevent light leakage from the edge of the pattern, the light-shielding layer 140 can overlap a part of the edge of the pattern.
  • the texture layer 121 includes multiple layers, and at least two layers have different colors. In this way, a better fuzzy occlusion effect can be achieved.
  • the texture layer 121, the pattern layer 130 and the light-shielding layer 140 may be transferred to the light-transmitting plate 220 through a lamination and transfer process.
  • PET film 100 comprises PET layer 110, texture layer 121, pattern layer 130 and light-shielding layer 140, PET layer 110, The texture layer 121 , the pattern layer 130 and the light-shielding layer 140 are sequentially stacked.
  • the processing of PET film 100 can comprise the following steps:
  • the texture layer 121 is screen-printed on the back side of the PET layer 110.
  • the texture layer 121 attached to the back side of the PET layer 110 can be formed by multi-degree silk screen printing on the back side of the PET layer 110 as required;
  • texture layer 121 On the surface of texture layer 121 away from PET layer 110 (this surface is the back side of texture layer 121) spray pattern, form pattern layer 130, the shape of pattern can be set according to control function;
  • a light-shielding layer 140 is silk-printed on the surface of the pattern layer 130 away from the texture layer 121 , and a light-transmitting area is set in a region where the light-shielding layer 140 faces the pattern, forming a PET film 100 .
  • the PET film 100 may be transferred to the light-transmitting plate 220 , and the light-shielding layer 140 is attached to the light-transmitting plate 220 .
  • the PET film 100 can be bonded to the light-transmitting plate 220 , for example, the light-shielding layer 140 and the light-transmitting plate 220 are bonded by glue 160 .
  • more layers can be arranged between the PET film 100 and the light-transmitting plate 220 .
  • the display device may further include a PVC (polyvinyl chloride) layer, the light-shielding layer 140 is bonded to the PVC layer 150 , and the PVC layer 150 is bonded to the light-transmitting plate 220 .
  • a PVC polyvinyl chloride
  • the PET film 100 can be bonded to the PVC layer 150 through the glue 160 , and then the PVC layer 150 can be bonded to the transparent plate 220 through the glue 160 .
  • the flatness of the transparent plate 220 can be increased by adding the PVC layer 150 , so that the adhesion of the light shielding layer 140 is more stable.
  • the PET layer 110 is directly removed.
  • the texture layer 121 of the display device as the outermost layer of the entire display device, can also protect the inner pattern layer 130 .
  • the transparent plate 220 may be made of transparent material.
  • the transparent plate 220 may be made of glass, and the transparent plate 220 may be a glass plate.
  • the light transmittance of the glass plate is good, so the power of the light-emitting device 300 inside can be set lower, which helps to reduce the power of the entire electrical equipment and prolongs the service life of the light-emitting device 300 .
  • the corresponding light emitting device 300 may include various structural forms.
  • the light emitting device 300 includes: a light guide plate 310 , a side light emitting element 320 , a conductive foam 330 and a circuit board 340 .
  • the light guide plate 310 is located on the inner surface of the light transmission plate 220, the inner surface of the light transmission plate 220 is the surface of the side of the light transmission plate 220 away from the light shielding layer 140, and the inner surface of the light transmission plate 220 and the light guide plate The top surfaces of 310 are oppositely disposed.
  • a light guide texture 312 may be provided on the top surface of the light guide plate 310 away from the conductive foam 330 .
  • the light guide texture 312 can guide the irradiation direction of light after passing through the light guide plate 310 .
  • the light guide plate 310 can be made of acrylic (polymethyl methacrylate) material. In this way, the light guide plate 310 has good light transmission and low hardness, and is not easy to scratch the upper glass plate, especially in the process of long-term use, it will not cause wear of the glass plate.
  • the side light emitting element 320 is mounted on the first side surface of the light guide plate 310, and the side light emitting element 320 is used to emit light to the light guide plate 310.
  • the side light emitting element 320 may be an LED light emitting module.
  • the side light emitting element 320 is electrically connected to the circuit board 340 , and the circuit board 340 is used to supply power to the side light emitting element 320 and control the light emitting state of the side light emitting element 320 .
  • the conductive foam 330 is clamped between the light guide plate 310 and the circuit board 340 .
  • circuit board 340 is provided with touch keys, and when the conductive foam 330 is compressed, the corresponding touch keys can be triggered.
  • each pattern in the pattern layer 130 can be provided with the light emitting device 300 correspondingly.
  • the light guide plate 310 corresponding to the target pattern moves downward, compressing the conductive foam 330, so that the circuit board 340 Generate a control instruction corresponding to the target pattern, and light up the target pattern to instruct the user.
  • the pins 321 of the side light emitting element 320 are electrically connected to the circuit board 340, the pins 321 of the side light emitting element 320 can be welded to the circuit board 340, and the pins 321 of the side light emitting element 320 are located between the light guide plate 310 and the circuit board 340.
  • the height of the portion between the circuit boards 340 is smaller than the height of the conductive foam 330 , and the conductive foam 330 is spaced apart from the pins 321 .
  • the light guide plate 310 is inclined relative to the circuit board 340 , and the distance between the end of the light guide plate 310 away from the stitches 321 and the circuit board 340 is greater than the distance between the other end of the light guide plate 310 and the circuit board 340 .
  • the contact area between the light guide plate 310 and the light-transmitting plate 220 is larger, and the light passing rate is higher.
  • the first side surface of the light guide plate 310 is used for light input, and the top surface of the light guide plate 310 away from the conductive foam 330 is used for light output.
  • a reflective layer 311 is provided on the bottom surface of the light guide plate 310 (the surface opposite to the light-emitting surface), and the reflective layer 311 is provided on the bottom surface of the light guide plate 310 facing the conductive foam 330 . In this way, the light guided into the light guide plate 310 can be reflected toward the top surface.
  • the other surfaces of the light guide plate 310 except the first side surface and the top surface are provided with a light reflective layer 311 . In this way, more light emitted by the side light-emitting element 320 can be reflected to the light-transmitting plate 220.
  • the reflective layer 311 may include reflective paper pasted on the light guide plate 310 .
  • the use of reflective paper is low cost and easy to assemble.
  • the light emitting device 300 includes: a digital tube and an ITO touch film.
  • the digital tube is installed on the inner surface of the light-transmitting plate, and the ITO touch film is sandwiched between the light-transmitting plate and the digital tube.
  • the light emitting device 300 may further include: a circuit board, the circuit board may be installed under the digital tube, and the digital tube is electrically connected to the circuit board.
  • the circuit board is used to supply power to the digital tube and control the light-emitting state of the digital tube.
  • the transparent plate 220 can be made of non-transparent material.
  • the light-transmitting plate 220 can be made of a non-light-transmitting material.
  • the light-transmitting plate 220 can be made of metal, and the light-transmitting plate 220 can be a metal plate, and the metal plate is provided with light holes formed as an array.
  • the area is directly opposite to the pattern, that is, the transparent plate 220 is provided with a light hole in the area directly opposite to the pattern.
  • a plurality of light holes may be arranged in a rectangular array, for example, a metal plate is provided with a 10*10 array of light holes.
  • the diameter of the light through holes may be less than 3mm, and the distance between the light through holes may be less than 3mm.
  • the diameter of the light holes may be 1 mm, and the distance between the light holes may be 1.5 mm.
  • the light emitting device 300 with this structure can be used in electrical equipment including a metal casing.
  • the corresponding light emitting device 300 may include various structural forms.
  • the light emitting device 300 includes: a light guide plate 310 , a side light emitting element 320 , a conductive foam 330 and a circuit board 340 .
  • the light emitting device 300 includes: a digital tube and an ITO touch film.
  • the light emitting device 300 includes: a digital tube 360 and a touch element 350 .
  • the touch element 350 is sandwiched between the transparent plate 220 and the nixie tube 360 , and the touch element 350 can be a touch spring 351 .
  • the texture layer 121, the pattern layer 130 and the light-shielding layer 140 are all arranged on the outer surface side of the light-transmitting plate 220, the inner surface of the light-transmitting plate 220 has no pattern layer 130 or light-shielding layer 140, which can A low-cost touch spring 351 is selected to reduce production costs.
  • the light emitting device 300 may further include: a circuit board, the circuit board may be installed under the digital tube 360, and the digital tube 360 is electrically connected to the circuit board.
  • the circuit board is used to supply power to the nixie tube 360 and control the lighting state of the nixie tube 360.
  • the display device may further include: a PET layer 110 disposed on a side of the texture layer 121 away from the pattern layer 130 .
  • the multilayer structure on the outside of the light emitting device 300 includes a PET layer 110, a texture layer 121, a pattern layer 130, a light-shielding layer 140, and a light-transmitting plate 220 that are stacked in sequence, and the light-transmitting plate 220 is located close to One side of the light emitting device 300 .
  • keeping the PET layer can enhance the protective effect on the inner texture layer 121, pattern layer 130 and light-shielding layer 140, so that the color of the pattern layer can be kept longer, and correspondingly, the durability of the entire display device is higher. it is good.
  • the manufacturing process of the display device includes: step 710 , step 720 , step 730 and step 740 .
  • Step 710 processing the PET film 100
  • the PET film 100 includes a PET layer 110, a texture layer 121, a pattern layer 130 and a light-shielding layer 140, and the PET layer 110, the texture layer 121, the pattern layer 130 and the light-shielding layer 140 are stacked in sequence ;
  • the PET layer 110 is preset as the carrier of the texture layer 121 , the pattern layer 130 and the light-shielding layer 140 , so as to facilitate the processing of the laminated structure of the texture layer 121 , the pattern layer 130 and the light-shielding layer 140 .
  • Step 720 transfer the PET film 100 to the light-transmitting plate 220, and attach the light-shielding layer 140 to the light-transmitting plate 220;
  • the side where the light-shielding layer 140 of the PET film 100 is located can be directly bonded to the light-transmitting plate 220, thus forming the PET layer 110, the texture layer 121, the pattern layer 130, the light-shielding layer 140 and the light-transmitting plate 220.
  • a multi-layer structure in which the plates 220 are connected, and the PET layer 110, the texture layer 121, the pattern layer 130, the light-shielding layer 140 and the light-transmitting plate 220 are sequentially stacked.
  • the light-transmitting plate 220 may be a glass plate or a metal plate with a light hole, and the specific structure may refer to the description of the above-mentioned embodiments.
  • the PET film 100 can be bonded to the light-transmitting plate 220 , for example, the light-shielding layer 140 and the light-transmitting plate 220 are bonded by glue 160 .
  • more layers can be arranged between the PET film 100 and the light-transmitting plate 220 .
  • the display device may further include a PVC (polyvinyl chloride) layer, the light-shielding layer 140 is bonded to the PVC layer 150 , and the PVC layer 150 is bonded to the light-transmitting plate 220 .
  • a PVC polyvinyl chloride
  • the PET film 100 can be bonded to the PVC layer 150 through the glue 160 , and then the PVC layer 150 can be bonded to the transparent plate 220 through the glue 160 .
  • the flatness of the transparent plate 220 can be increased by adding the PVC layer 150 , so that the adhesion of the light shielding layer 140 is more stable.
  • Step 730 removing the PET layer 110
  • the PET layer 110 is removed to obtain a multi-layer structure in which the texture layer 121, the pattern layer 130, the light-shielding layer 140 and the light-transmitting plate 220 are connected.
  • Step 740 installing the light emitting device 300 on the inner surface of the transparent plate 220 .
  • a display device can be obtained by assembling the multilayer structure obtained in step 730 with the light emitting device 300 .
  • the lamination structure of the texture layer 121, the pattern layer 130 and the light-shielding layer 140 is transferred to the light-transmitting plate 220 through processes such as compounding and transfer printing, which can reduce the process of patching and improve Improve processing efficiency and reduce the difficulty of alignment.
  • step 710, processing the PET film 100 includes:
  • the texture layer 121 is silk-printed on the back side of the PET layer 110.
  • the texture layer 121 attached to the back side of the PET layer 110 can be formed on the back side of the PET layer 110 by multi-degree silk screen printing.
  • the texture layer 121 Used to achieve the effect of blur occlusion.
  • a pattern is sprayed to form a pattern layer 130, and the shape of the pattern can be set according to the control function;
  • a light-shielding layer 140 is screen-printed on the surface of the pattern layer 130 away from the texture layer 121 , and a light-transmitting region is provided in a region facing the pattern to form a PET film 100 .
  • the formed PET film 100 has better pattern clarity, color reproduction, saturation and hiding effect.
  • the manufacturing process of the display device includes: step 810 , step 820 , step 830 and step 840 .
  • Step 810 screen-print a light-shielding layer 140 on the outer surface of the light-transmitting plate 220, and the light-shielding layer 140 is provided with a light-transmitting area;
  • the position and size of the light-transmitting area need to be reserved in advance according to the designed image shape and position of the pattern layer 130 .
  • the light-transmitting area of the light-shielding layer 140 can be set smaller than the pattern of the pattern layer 130, that is, the light-shielding layer 140 can be set at the edge relative to the pattern layer 130, which can reduce the alignment between the pattern layer 130 and the light-shielding layer 140.
  • the accuracy requirement is to ensure that the edge of the pattern layer 130 does not leak light.
  • the light-shielding layer 140 can be black or other dark inks.
  • Step 820 spraying a pattern on the light-transmitting area of the light-shielding layer 140 to form the pattern layer 130;
  • the pattern obtained by direct printing has higher clarity, color reproduction and saturation.
  • the size of the pattern can be larger than the size of the light-transmitting area of the light-shielding layer 140, that is, the pattern is sprayed on the edge of the light-shielding layer 140, which can reduce the accuracy requirements for alignment between the pattern layer 130 and the light-shielding layer 140, and ensure that the pattern layer The edge of 130 does not leak light.
  • Step 830 screen-print the texture layer 121 on the pattern layer 130;
  • the texture layer 121 is used to block and protect the pattern layer 130, on the one hand to prevent the pattern layer 130 from being scratched, and on the other hand to block the pattern when the light emitting device 300 is not working.
  • the texture layer 121 can be formed by multi-degree silk screen printing as required.
  • Step 840 installing the light emitting device 300 on the inner surface of the transparent plate 220 .
  • the laminated structure of the texture layer 121, the pattern layer 130 and the light-shielding layer 140 is directly formed on the light-transmitting plate 220 through the process of direct screen printing and inkjet painting, which can reduce the process of patching, Improve processing efficiency and reduce the difficulty of alignment.
  • the application also discloses an electric device.
  • the electrical equipment includes the display device of any one of the above embodiments, and the light-transmitting plate 220 is a part of the housing of the electrical equipment.
  • the display device can be applied to various electrical appliances, including but not limited to: rice cookers, water purifiers, coffee machines, cooking machines, washing machines, water heaters, refrigerators, or vending machines.
  • the electrical equipment of the embodiment of the present application directly arranges the texture layer 121, the pattern layer 130 and the light-shielding layer 140 on the outer surface of the casing, which can reduce the patching process, improve the production efficiency during processing, and can omit part of the assembly at this place
  • the structure occupies less installation space, and when the entire display device is not lit, the shielding effect is good, and when the display device is lit, the pattern is displayed more clearly.
  • the application discloses a display device, including:
  • the light-transmitting plate forming at least part of the housing of the device to which the display device belongs;
  • a texture layer, a pattern layer and a light-shielding layer, the pattern layer and the light-shielding layer are arranged on the back of the texture layer, the light-shielding layer is attached to the outer surface of the light-transmitting plate, and the light-shielding layer includes The pattern on the pattern layer is facing the light-transmitting area;
  • a light-emitting device the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the light-transmitting plate is a glass plate; alternatively, the light-transmitting plate is a metal plate, and the metal plate is provided with light-through holes formed in an array in a region facing the pattern.
  • the light-shielding layer is bonded to the light-transmitting plate.
  • the light-shielding layer is an ink layer, and the ink layer is silk-screened on the back of the texture layer.
  • the pattern layer is formed on the back of the texture layer by spray painting.
  • it further includes: a PVC layer, the light-shielding layer is bonded to the PVC layer, and the PVC layer is bonded to the light-transmitting plate.
  • it further includes: a PET layer, the PET layer is disposed on the side of the texture layer away from the pattern layer.
  • the light emitting device includes:
  • a light guide plate, the light guide plate is located on the inner surface of the light-transmitting plate, and the top surface of the light-guiding plate is opposite to the inner surface of the light-transmitting plate;
  • the side light emitting element is installed on the first side surface of the light guide plate;
  • a circuit board, the side light-emitting element is electrically connected to the circuit board
  • Conductive foam the conductive foam is sandwiched between the light guide plate and the circuit board.
  • the pins of the side light-emitting element are electrically connected to the circuit board, and the height of the portion of the pins between the light guide plate and the circuit board is smaller than the height of the conductive foam.
  • the light guide plate is inclined relative to the circuit board, and the distance from the end of the light guide plate away from the pins to the circuit board is greater than the distance from the other end of the light guide plate to the circuit board. distance.
  • the light emitting device includes:
  • a digital tube the digital tube is installed on the inner surface of the light-transmitting plate
  • a touch element the touch element is sandwiched between the light-transmitting plate and the nixie tube.
  • the application discloses a processing technology of a display device, including:
  • a PET film is processed, and the PET film includes a PET layer, a texture layer, a pattern layer and a light-shielding layer stacked in sequence;
  • the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the processing of the PET film includes:
  • a texture layer is screen-printed on the back side of the PET layer
  • a light-shielding layer is silk-printed on the surface of the pattern layer away from the texture layer, and a light-transmitting area is provided in a region facing the pattern to form the PET film.
  • the silk printing of the texture layer on the back side of the PET layer includes:
  • a texture layer attached to the back of the PET layer is formed on the back of the PET layer by multi-degree silk screen printing.
  • the application discloses a processing technology of a display device, including:
  • a light-shielding layer is screen-printed on the outer surface of the light-transmitting plate, and the light-shielding layer is provided with a light-transmitting area;
  • the light-emitting device is installed on the inner surface of the light-transmitting plate.
  • the present application discloses an electrical device, comprising any one of the display devices described above, and the light-transmitting plate is a part of the housing of the electrical device.

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Abstract

一种显示装置、显示装置的加工工艺和电器设备,所述显示装置,包括:透光板,所述透光板形成所述显示装置所属设备的至少部分外壳;纹理层、图案层和遮光层,所述图案层和所述遮光层设置在所述纹理层的背面,所述遮光层贴合在所述透光板的外表面,且所述遮光层包括与所述图案层上的图案正对设置的透光区;发光装置,所述发光装置安装于所述透光板的内表面。

Description

显示装置、显示装置的加工工艺和电器设备
相关申请的交叉引用
本申请要求于2021年07月07日提交的申请号为2021107669469,申请名称为“显示装置、显示装置的加工工艺和电器设备”,以及申请号为2021215353162,申请名称为“显示装置和电器设备”的中国专利申请的优先权,其通过引用方式全部并入本申请。
技术领域
本申请涉及显示装置技术领域,尤其涉及一种显示装置、显示装置的加工工艺和电器设备。
背景技术
电器设备的控制按键,通常都是集成于显示装置,这样显示装置上显示的图案或者文字,可以方便快捷地指示用户进行目标操作。相关技术中,显示装置的结构通常都是基材被夹持在两侧的PET膜片之间。
对于这种结构,第一方面,在图案层下方安装触控键时,为了防止图案层磨损,不能采用成本较低的弹簧触控键,影响了显示装置的生成成本;第二方面,需要在下层配置亮度较大的发光装置,影响电器设备的能耗;第三方面,在不通电时图案层的图案也能看到,使得显示装置的各个控制按键的对比度不足,影响使用。
发明内容
针对相关技术中存在的技术问题,本申请实施例提供一种显示装置、显示装置的加工工艺和电器设备。
第一方面,本申请实施例提供一种显示装置,包括:
透光板,所述透光板形成所述显示装置所属设备的至少部分外壳;
纹理层、图案层和遮光层,所述图案层和所述遮光层设置在所述纹理层的背面,所述遮光层贴合在所述透光板的外表面,且所述遮光层包括与所述图案层上的图案正对设置的透光区;
发光装置,所述发光装置安装于所述透光板的内表面。
在一些实施例中,所述透光板为玻璃板;或者,所述透光板为金属板,且所述金属板在与所述图案正对的区域设有形成为阵列的通光孔。
在一些实施例中,所述遮光层粘接于所述透光板。
在一些实施例中,所述遮光层为油墨层,所述油墨层丝印于所述纹理层的背面。
在一些实施例中,所述图案层通过喷绘形成在所述纹理层的背面。
在一些实施例中,还包括:PVC层,所述遮光层粘接于所述PVC层,所述PVC层粘接于所述透光板。
在一些实施例中,还包括:PET层,所述PET层设置在所述纹理层背离所述图案层的一侧。
在一些实施例中,所述发光装置包括:
导光板,所述导光板位于所述透光板的内表面,且所述导光板的顶面与所述透光板的内表面相对设置;
侧发光元件,所述侧发光元件安装于所述导光板的第一侧表面;
电路板,所述侧发光元件与所述电路板电连接;
导电泡棉,所述导电泡棉夹持在所述导光板与所述电路板之间。
在一些实施例中,所述侧发光元件的针脚与所述电路板电连接,且所述针脚在所述导光板与所述电路板之间的部分的高度小于所述导电泡棉的高度。
在一些实施例中,所述导光板相对于所述电路板倾斜设置,且所述导光板远离所述针脚的一端到所述电路板的距离大于所述导光板另一端到所述电路板的距离。
在一些实施例中,所述发光装置包括:
数码管,所述数码管安装于所述透光板的内表面;
触控元件,所述触控元件夹持在所述透光板与所述数码管之间。
第二方面,本申请公开了一种显示装置的加工工艺,包括:
加工出PET膜片,所述PET膜片包括顺次层叠设置的PET层、纹理层、图案层和遮光层;
将所述PET膜片转印到透光板,且所述遮光层与所述透光板贴合;
去除所述PET层;
将发光装置安装于所述透光板的内表面。
在一些实施例中,所述加工出PET膜片,包括:
在所述PET层的背面丝印出纹理层;
在所述纹理层背离所述PET层的表面喷绘图案,形成图案层;
在所述图案层背离所述纹理层的表面丝印出遮光层,且在与所述图案正对的区域设置透光区,形成所述PET膜片。
在一些实施例中,所述在所述PET层的背面丝印出纹理层,包括:
在PET层的背面通过多度丝印形成贴附于所述PET层的背面的纹理层。
第三方面,本申请公开了一种显示装置的加工工艺,包括:
在透光板的外表面丝印出遮光层,所述遮光层设有透光区;
在所述遮光层的透光区喷绘图案,形成图案层;
在所述图案层丝印出纹理层;
将发光装置安装于所述透光板的内表面。
第四方面,本申请公开了一种电器设备,包括如上述任一种所述的显示装置,且所述透光板为所述电器设备的外壳的一部分。
本申请实施例提供的显示装置、显示装置的加工工艺和电器设备,通过直接将纹理层、图案层和遮光层设在设备外壳的外表面,可以减少贴片工序,提升加工时的生产效率,且可以省略该处的一部分装配结构,占用的安装空间更小,整个显示装置在不点亮时,遮挡效果好,显示装置在点亮时,图案显示得更清晰。
附图说明
为了更清楚地说明本申请实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作以简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,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是本申请实施例提供的显示装置的结构示意图;
图2是本申请实施例提供的用于加工显示装置的PET膜片的结构示意图;
图3是本申请实施例提供的加工显示装置的中间步骤示意图之一;
图4是本申请实施例提供的加工显示装置的中间步骤示意图之二;
图5是本申请实施例提供的显示装置中的发光装置的结构示意图;
图6是本申请实施例提供的显示装置中的发光装置的部分结构的爆炸图;
图7是本申请实施例提供的显示装置的加工工艺的流程示意图之一;
图8是本申请实施例提供的显示装置的加工工艺的流程示意图之二。
附图标记:
PET膜片100,PET层110,纹理层121,图案层130,遮光层140,PVC层150,胶水160;
透光板220;
发光装置300,导光板310,反光层311,导光纹理312,侧发光元件320,针脚321,导电泡棉330,电路板340,触控弹簧351,数码管360。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例用于说明本申请,但不能用来限制本申请的范围。
在本申请实施例的描述中,需要说明的是,术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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实施例和简化描述,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实施例的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。
在本申请实施例的描述中,需要说明的是,除非另有明确的规定和限定,术语“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。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申请实施例中的具体含义。
在本申请实施例中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和 “上面”可是第一特征在第二特征正上方或斜上方,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”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请实施例的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
下面结合图1-图6描述本申请实施例的显示装置。
该显示装置可以应用于各种电器设备,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。
如图1所示,该显示装置包括:透光板220、纹理层121、图案层130、遮光层140和发光装置300。
纹理层121、图案层130和遮光层140设置在透光板220的外表面一侧,发光装置300设置在透光板220的内表面一侧。
其中,透光板220可以透过光线,光线从内侧的发光装置300向外照射,至少部分光线透过透光板220,照射到图案层130的图案上,图案即与四周的其他区域形成较大的亮度对比差异,使得用户可以清楚地看到图案。
透光板220形成该显示装置所属设备的至少部分外壳,换言之,透光板220可以为该显示装置所属设备的外壳的一部分。
需要说明的是,相关技术中,需要设计独立的基板来承载图案层130和遮光层140等,使得在将显示装置装配到电器设备时,需要考虑基板独立的装配结构,且需要在显示装置所在的位置预留足够大的安装位置,影响了电器设备的空间布局设计。
本申请实施例的显示装置直接将图案层130和遮光层140设在设备外壳上,可以省略该处的一部分装配结构,且占用的安装空间更小。
图案层130包括多个图案,图案可以为图形或文字等标识,比如以洗衣机为例,图案层130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,图案层130可以包括用于表征煮饭模式的图案。每个图案可以对应一个按键,比如图案内侧的发光装置300可以设有对应的控制按键。
遮光层140用于与图案层130配合,将图案层130中未设置图案的其他区域遮盖住,防止光线从这些区域透过,这样在发光装置300发光时,只有图案被点亮,以与其他区域形成对比。
遮光层140包括透光区,透光区与图案层130上的图案正对设置。
这样,发光装置300发射的光线可以透过遮光层140的透光区照射到图案层130的图案,使图案被点亮;图案层130中未设置图案的其他区域由于被遮光层140遮挡,不被点亮。
需要说明的是,在实际加工过程中,需要确保图案层130的图案与遮光层140的透光区对齐,这样可以防止图案显示不完整,或者在图案的边沿发生漏光。
在实际加工时,遮光层140的透光区可以设置得小于图案层130的图案,即遮光层140可以相对于图案层130压边设置,这样可以降低图案层130与遮光层140之间对齐的精度要求,确保图案层130的边缘不漏光。
遮光层140贴合在透光板220的外表面,可以理解的是,图案层130中与遮光层140的透光区对应的图案也可以贴合在透光板220的外表面。透光板220的外表面指透光板220朝向电器设备的外表面的一面。
图案层130和遮光层140设置在纹理层121的背面,纹理层121的正面朝向用户,纹理层121用于遮蔽下方的图案层130,这样在发光装置300不发光时,通过纹理层121看图案层130时,图案层130的图案显示为黑色。
发光装置300安装在透光板220的内表面,发光装置300上电时,可以向透光板220发光。
对应地,光线的照射方向为:发光装置300——透光板220——遮光层140——图案层130——纹理层121。
相关技术中,在基材两侧分别设有图案层130和遮光层140。这种方式需要通过胶水160,在基材两侧粘贴,要确保隔着基材的遮光层140和 图案层130对齐,操作难度大,良率难以保证。
本申请的显示装置,从外向内依次为纹理层121、图案层130、遮光层140和透光板220,即图案层130和遮光层140设置在透光板220的同一侧。这样可以减少贴片工序,提升加工时的生产效率。
另一方面,纹理层121、图案层130和遮光层140均设置在透光板220的外表面一侧,可以减少膜片的数量,这样可以减少发光装置300的功率或者降低发光装置300的亮度,延长发光装置300的寿命。
本申请提供的显示装置,通过直接将纹理层121、图案层130和遮光层140设在设备外壳的外表面,可以减少贴片工序,提升加工时的生产效率,且可以省略该处的一部分装配结构,占用的安装空间更小,整个显示装置在不点亮时,遮挡效果好,显示装置在点亮时,图案显示得更清晰。
在一些实施例中,遮光层140粘接在透光板220。遮光层140可以通过胶水160粘接于透光板220的外表面。从遮光层140的透光区露出的图案也可以粘接于透光板220的外表面。
在实际的执行中,图案层130可以通过喷绘形成在纹理层121的背面,喷绘形成的图案层130清晰度、色彩还原度、饱和度和隐藏效果更好。
遮光层140可以为油墨层,油墨层丝印在纹理层121的背面,再将图案层130喷绘形成在纹理层121的背面后,纹理层121的背面的部分区域形成有图案,再将遮光层140丝印在纹理层121的背面,且在图案所在的区域留白,形成透光区,且为了防止图案的边沿漏光,遮光层140可以与图案的边沿重合一部分。
纹理层121包括多层,且至少两层的颜色不同。这样,可以达到较好的模糊遮挡效果。
在一些实施例中,纹理层121、图案层130和遮光层140可以通过复合和转印工艺转移到透光板220。
在实际加工的过程中,可以先加工出PET(涤纶树脂)膜片,如图2所示,PET膜片100包括PET层110、纹理层121、图案层130和遮光层140,PET层110、纹理层121、图案层130和遮光层140顺次层叠设置。
PET膜片100的加工过程可以包括如下步骤:
在PET层110的背面丝印出纹理层121,在实际加工的过程中,可以根据需要,在PET层110的背面通过多度丝印形成贴附于PET层110的 背面的纹理层121;
在纹理层121背离PET层110的表面(该表面即为纹理层121的背面)喷绘图案,形成图案层130,图案的形状可以根据控制功能设置;
在图案层130背离纹理层121的表面丝印出遮光层140,且在遮光层140与图案正对的区域设置透光区,形成PET膜片100。
对于加工形成的PET膜片100,可以将PET膜片100转印到透光板220,且遮光层140与透光板220贴合。
在实际加工的过程中,可以将PET膜片100粘结于透光板220,比如通过胶水160将遮光层140与透光板220粘结。
当然,PET膜片100与透光板220之间还可以设置更多层。
比如,如图3所示,该显示装置还可以包括PVC(聚氯乙烯)层,遮光层140粘接于PVC层150,PVC层150粘接在透光板220。
在实际加工的过程中,可以将PET膜片100通过胶水160粘结于PVC层150,再将PVC层150通过胶水160粘结于透光板220。
通过增设PVC层150可以增加透光板220的平整度,使得遮光层140的粘接更稳定。
如图4所示,在将PET膜片100粘结于透光板220后,直接去除PET层110。
这样该显示装置的纹理层121作为整个显示装置的最外层,还可以起到保护内层的图案层130的作用。
下面分别从两种不同的实现角度,对本申请实施例进行具体说明。
一、透光板220可以为透光材料制成。
比如透光板220可以为玻璃制成,透光板220可以为玻璃板。
玻璃板的透光性好,这样内侧的发光装置300的功率可以设置得较低,有助于降低整个电器设备的功率,延长发光装置300的使用寿命。
对于该实施例,对应的发光装置300可以包括多种结构形式。
其一,发光装置300包括:导光板310、侧发光元件320、导电泡棉330和电路板340。
如图5所示,导光板310位于透光板220的内表面,透光板220的内表面为透光板220背离遮光层140的一侧表面,且透光板220的内表面与导光板310的顶面相对设置。
如图6所示,导光板310背离导电泡棉330的顶面还可以设有导光纹理312,导光纹理312可以引导光线穿透导光板310后的照射方向。
导光板310可以为亚克力(聚甲基丙烯酸甲酯)材料制成。这样导光板310的通光性好,且硬度较低,不易划伤上方的玻璃板,特别是在长期使用的过程中,不会造成玻璃板的磨损。
侧发光元件320安装于导光板310的第一侧表面,侧发光元件320用于向导光板310发光,侧发光元件320可以为LED发光模块。
侧发光元件320与电路板340电连接,电路板340用于向侧发光元件320供电,且控制侧发光元件320的发光状态。
导电泡棉330夹持在导光板310与电路板340之间。
可以理解的是,电路板340上设有触控键,导电泡棉330被压缩时,可以触发对应的触控键。
在实际使用过程中,图案层130中的每个图案均可以对应设置有该发光装置300,在按压目标图案时,目标图案对应的导光板310向下运动,压缩导电泡棉330,使得电路板340生成与该目标图案对应的控制指令,且点亮该目标图案,以指示用户。
如图5和图6所示,侧发光元件320的针脚321与电路板340电连接,侧发光元件320的针脚321可以焊接于电路板340,且侧发光元件320的针脚321位于导光板310与电路板340之间的部分的高度小于导电泡棉330的高度,导电泡棉330与针脚321间隔开。导光板310相对于电路板340倾斜设置,且导光板310远离针脚321的一端到电路板340的距离大于导光板310另一端到电路板340的距离。
这样,在将显示装置安装于电器设备整机时,导光板310与透光板220的接触面积更大,光线的通过率更高。
导光板310的第一侧表面用于进光,导光板310背离导电泡棉330的顶面用于出光。
在一些实施例中,如图6所示,导光板310的底面(与出光表面相对的面)设有反光层311,导光板310朝向导电泡棉330的底面设有反光层311。这样导入导光板310的光线可以向顶面反射。
在一些实施例中,导光板310除第一侧表面和顶面之外的其他表面均设有反光层311。这样,可以将侧发光元件320发出的更多光线反射向透 光板220。
反光层311可以包括粘贴于导光板310的反光纸。使用反光纸的成本低,且便于装配。
其二,发光装置300包括:数码管和ITO触控膜。
数码管安装于透光板的内表面,ITO触控膜夹持在透光板与数码管之间。
发光装置300还可以包括:电路板,数码管的下方还可以安装电路板,数码管与电路板电连接。电路板用于向数码管供电,且控制数码管的发光状态。
二、透光板220可以为非透光材料制成。
透光板220可以为非透光材料制成,比如透光板220可以为金属制成,透光板220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图案正对,即透光板220在与图案正对的区域设有通光孔。
多个通光孔可以呈矩形阵列排布,比如金属板设有10*10阵列的通光孔。通光孔的直径可以小于3mm,通光孔之间的间距可以小于3mm。比如,通光孔的直径可以为1mm,通光孔之间的间距可以为1.5mm。
这样,该结构的发光装置300可以用于包括金属外壳的电器设备。
对于该实施例,对应的发光装置300可以包括多种结构形式。
其一,发光装置300包括:导光板310、侧发光元件320、导电泡棉330和电路板340。
该发光装置300的具体结构可以参考上述实施例的描述。
其二,发光装置300包括:数码管和ITO触控膜。
该发光装置300的具体结构可以参考上述实施例的描述。
其三,发光装置300包括:数码管360和触控元件350。
触控元件350夹持在透光板220与数码管360之间,触控元件350可以为触控弹簧351。
可以理解的是,由于纹理层121、图案层130和遮光层140均设置在透光板220的外表面一侧,这样,该透光板220的内表面无图案层130或遮光层140,可以选择成本低的触控弹簧351,以降低生产成本。
发光装置300还可以包括:电路板,数码管360的下方还可以安装电路板,数码管360与电路板电连接。电路板用于向数码管360供电,且控 制数码管360的发光状态。
在另一些实施例,该显示装置还可以包括:PET层110,PET层110设置在纹理层121背离图案层130的一侧。
换言之,在该实施例中,发光装置300外侧的多层结构包括顺次层叠设置的PET层110、纹理层121、图案层130、遮光层140和透光板220,且透光板220位于靠近发光装置300的一侧。
在该实施例中,保留PET层,可以增强对内侧的纹理层121、图案层130和遮光层140的防护作用,使图案层的色泽保持的更久,对应地,整个显示装置的耐久性更好。
下面对本申请实施例提供的显示装置的加工工艺进行描述,下文描述的显示装置的加工工艺与上文描述的显示装置可相互对应参照。
如图7所示,本申请实施例提供的显示装置的加工工艺包括:步骤710、步骤720、步骤730和步骤740。
步骤710、加工出PET膜片100,PET膜片100包括PET层110、纹理层121、图案层130和遮光层140,PET层110、纹理层121、图案层130和遮光层140顺次层叠设置;
在该步骤中,预先设置了PET层110作为纹理层121、图案层130和遮光层140的载体,便于加工出纹理层121、图案层130和遮光层140的层叠结构。
步骤720、将PET膜片100转印到透光板220,且遮光层140与透光板220贴合;
在实际加工的过程中,可以直接将PET膜片100的遮光层140所在的一侧与透光板220粘结,这样形成PET层110、纹理层121、图案层130、遮光层140和透光板220相连的多层结构,且PET层110、纹理层121、图案层130、遮光层140和透光板220顺次层叠设置。
透光板220可以为玻璃板或者带通光孔的金属板,具体结构可以参考上述实施例的描述。
在实际加工的过程中,可以将PET膜片100粘结于透光板220,比如通过胶水160将遮光层140与透光板220粘结。
当然,PET膜片100与透光板220之间还可以设置更多层。
比如,如图3所示,该显示装置还可以包括PVC(聚氯乙烯)层,遮 光层140粘接于PVC层150,PVC层150粘接在透光板220。
在实际加工的过程中,可以将PET膜片100通过胶水160粘结于PVC层150,再将PVC层150通过胶水160粘结于透光板220。
通过增设PVC层150可以增加透光板220的平整度,使得遮光层140的粘接更稳定。
步骤730、去除PET层110;
对于步骤720中得到的多层结构,去除PET层110,即可得到纹理层121、图案层130、遮光层140和透光板220相连的多层结构。
步骤740、将发光装置300安装于透光板220的内表面。
将步骤730中得到的多层结构与发光装置300装配,即可得到显示装置。
根据本申请实施例的显示装置的加工工艺,通过复合和转印等工艺,将纹理层121、图案层130和遮光层140的层叠结构转移到透光板220,可以减少贴片的工序,提高加工效率,降低对齐的难度。
在一些实施例中,步骤710、加工出PET膜片100,包括:
在PET层110的背面丝印出纹理层121,在实际加工的过程中,可以根据需要,在PET层110的背面通过多度丝印形成贴附于PET层110的背面的纹理层121,纹理层121用于实现模糊遮挡的效果。
在纹理层121背离PET层110的表面喷绘图案,形成图案层130,图案的形状可以根据控制功能设置;
在图案层130背离纹理层121的表面丝印出遮光层140,且在与图案正对的区域设置透光区,形成PET膜片100。
通过上述方式,形成的PET膜片100,其图案的清晰度、色彩还原度、饱和度和隐藏效果更好。
下面对本申请实施例提供的另一种显示装置的加工工艺进行描述,下文描述的显示装置的加工工艺与上文描述的显示装置可相互对应参照。
如图8所示,本申请实施例提供的显示装置的加工工艺包括:步骤810、步骤820、步骤830和步骤840。
步骤810、在透光板220的外表面丝印出遮光层140,遮光层140设有透光区;
在该步骤中,需要预先根据设计出的图案层130的图像形状和位置, 预留透光区的位置和大小。
在实际的执行中,遮光层140的透光区可以设置的小于图案层130的图案,即遮光层140可以相对于图案层130压边设置,这样可以降低图案层130与遮光层140之间对齐的精度要求,确保图案层130的边缘不漏光。
遮光层140可以为黑色或其他深色的油墨。
步骤820、在遮光层140的透光区喷绘图案,形成图案层130;
在该步骤中,直接喷绘得到的图案,其清晰度、色彩还原度和饱和度更高。
在实际的执行中,图案的可以大于遮光层140的透光区的大小,即图案对遮光层140压边喷绘,这样可以降低图案层130与遮光层140之间对齐的精度要求,确保图案层130的边缘不漏光。
步骤830、在图案层130丝印出纹理层121;
纹理层121用于遮挡和保护图案层130,一方面防止图案层130划伤,另一方面在发光装置300不工作时,遮挡图案。
在实际加工的过程中,可以根据需要,通过多度丝印形成该纹理层121。
步骤840、将发光装置300安装于透光板220的内表面。
根据本申请实施例的显示装置的加工工艺,通过直接丝印和喷绘的工艺,将纹理层121、图案层130和遮光层140的层叠结构直接形成在透光板220,可以减少贴片的工序,提高加工效率,降低对齐的难度。
本申请还公开了一种电器设备。
该电器设备包括上述任一种实施例的显示装置,且透光板220为电器设备的外壳的一部分。
该显示装置可以应用于各种电器设备,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。
本申请实施例的电器设备,通过直接将纹理层121、图案层130和遮光层140设在外壳的外表面,可以减少贴片工序,提升加工时的生产效率,且可以省略该处的一部分装配结构,占用的安装空间更小,整个显示装置在不点亮时,遮挡效果好,显示装置在点亮时,图案显示得更清晰。
本申请公开了一种显示装置,包括:
透光板,所述透光板形成所述显示装置所属设备的至少部分外壳;
纹理层、图案层和遮光层,所述图案层和所述遮光层设置在所述纹理 层的背面,所述遮光层贴合在所述透光板的外表面,且所述遮光层包括与所述图案层上的图案正对设置的透光区;
发光装置,所述发光装置安装于所述透光板的内表面。
在一些实施例中,所述透光板为玻璃板;或者,所述透光板为金属板,且所述金属板在与所述图案正对的区域设有形成为阵列的通光孔。
在一些实施例中,所述遮光层粘接于所述透光板。
在一些实施例中,所述遮光层为油墨层,所述油墨层丝印于所述纹理层的背面。
在一些实施例中,所述图案层通过喷绘形成在所述纹理层的背面。
在一些实施例中,还包括:PVC层,所述遮光层粘接于所述PVC层,所述PVC层粘接于所述透光板。
在一些实施例中,还包括:PET层,所述PET层设置在所述纹理层背离所述图案层的一侧。
在一些实施例中,所述发光装置包括:
导光板,所述导光板位于所述透光板的内表面,且所述导光板的顶面与所述透光板的内表面相对设置;
侧发光元件,所述侧发光元件安装于所述导光板的第一侧表面;
电路板,所述侧发光元件与所述电路板电连接;
导电泡棉,所述导电泡棉夹持在所述导光板与所述电路板之间。
在一些实施例中,所述侧发光元件的针脚与所述电路板电连接,且所述针脚在所述导光板与所述电路板之间的部分的高度小于所述导电泡棉的高度。
在一些实施例中,所述导光板相对于所述电路板倾斜设置,且所述导光板远离所述针脚的一端到所述电路板的距离大于所述导光板另一端到所述电路板的距离。
在一些实施例中,所述发光装置包括:
数码管,所述数码管安装于所述透光板的内表面;
触控元件,所述触控元件夹持在所述透光板与所述数码管之间。
本申请公开了一种显示装置的加工工艺,包括:
加工出PET膜片,所述PET膜片包括顺次层叠设置的PET层、纹理层、图案层和遮光层;
将所述PET膜片转印到透光板,且所述遮光层与所述透光板贴合;
去除所述PET层;
将发光装置安装于所述透光板的内表面。
在一些实施例中,所述加工出PET膜片,包括:
在所述PET层的背面丝印出纹理层;
在所述纹理层背离所述PET层的表面喷绘图案,形成图案层;
在所述图案层背离所述纹理层的表面丝印出遮光层,且在与所述图案正对的区域设置透光区,形成所述PET膜片。
在一些实施例中,所述在所述PET层的背面丝印出纹理层,包括:
在PET层的背面通过多度丝印形成贴附于所述PET层的背面的纹理层。
本申请公开了一种显示装置的加工工艺,包括:
在透光板的外表面丝印出遮光层,所述遮光层设有透光区;
在所述遮光层的透光区喷绘图案,形成图案层;
在所述图案层丝印出纹理层;
将发光装置安装于所述透光板的内表面。
本申请公开了一种电器设备,包括如上述任一种所述的显示装置,且所述透光板为所述电器设备的外壳的一部分。
最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,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,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。
以上实施方式仅用于说明本申请,而非对本申请的限制。尽管参照实施例对本申请进行了详细说明,本领域的普通技术人员应当理解,对本申请的技术方案进行各种组合、修改或者等同替换,都不脱离本申请技术方案的精神和范围,均应涵盖在本申请的权利要求范围中。

Claims (16)

  1. 一种显示装置,其特征在于,包括:
    透光板,所述透光板形成所述显示装置所属设备的至少部分外壳;
    纹理层、图案层和遮光层,所述图案层和所述遮光层设置在所述纹理层的背面,所述遮光层贴合在所述透光板的外表面,且所述遮光层包括与所述图案层上的图案正对设置的透光区;
    发光装置,所述发光装置安装于所述透光板的内表面。
  2. 根据权利要求1所述的显示装置,其特征在于,
    所述透光板为玻璃板;
    或者,
    所述透光板为金属板,且所述金属板在与所述图案正对的区域设有形成为阵列的通光孔。
  3. 根据权利要求1或2所述的显示装置,其特征在于,所述遮光层粘接于所述透光板。
  4. 根据权利要求1-3中任一项所述的显示装置,其特征在于,所述遮光层为油墨层,所述油墨层丝印于所述纹理层的背面。
  5. 根据权利要求1-4中任一项所述的显示装置,其特征在于,所述图案层通过喷绘形成在所述纹理层的背面。
  6. 根据权利要求1-5中任一项所述的显示装置,其特征在于,还包括:
    PVC层,所述遮光层粘接于所述PVC层,所述PVC层粘接于所述透光板。
  7. 根据权利要求1-6中任一项所述的显示装置,其特征在于,还包括:
    PET层,所述PET层设置在所述纹理层背离所述图案层的一侧。
  8. 根据权利要求1-7中任一项所述的显示装置,其特征在于,所述发光装置包括:
    导光板,所述导光板位于所述透光板的内表面,且所述导光板的顶面与所述透光板的内表面相对设置;
    侧发光元件,所述侧发光元件安装于所述导光板的第一侧表面;
    电路板,所述侧发光元件与所述电路板电连接;
    导电泡棉,所述导电泡棉夹持在所述导光板与所述电路板之间。
  9. 根据权利要求8所述的显示装置,其特征在于,所述侧发光元件的针脚与所述电路板电连接,且所述针脚在所述导光板与所述电路板之间的部分的高度小于所述导电泡棉的高度。
  10. 根据权利要求9所述的显示装置,其特征在于,所述导光板相对于所述电路板倾斜设置,且所述导光板远离所述针脚的一端到所述电路板的距离大于所述导光板另一端到所述电路板的距离。
  11. 根据权利要求1-7中任一项所述的显示装置,其特征在于,所述发光装置包括:
    数码管,所述数码管安装于所述透光板的内表面;
    触控元件,所述触控元件夹持在所述透光板与所述数码管之间。
  12. 一种显示装置的加工工艺,其特征在于,包括:
    加工出PET膜片,所述PET膜片包括顺次层叠设置的PET层、纹理层、图案层和遮光层;
    将所述PET膜片转印到透光板,且所述遮光层与所述透光板贴合;
    去除所述PET层;
    将发光装置安装于所述透光板的内表面。
  13. 根据权利要求12所述的显示装置的加工工艺,其特征在于,所述加工出PET膜片,包括:
    在所述PET层的背面丝印出纹理层;
    在所述纹理层背离所述PET层的表面喷绘图案,形成图案层;
    在所述图案层背离所述纹理层的表面丝印出遮光层,且在与所述图案正对的区域设置透光区,形成所述PET膜片。
  14. 根据权利要求13所述的显示装置的加工工艺,其特征在于,所述在所述PET层的背面丝印出纹理层,包括:
    在PET层的背面通过多度丝印形成贴附于所述PET层的背面的纹理层。
  15. 一种显示装置的加工工艺,其特征在于,包括:
    在透光板的外表面丝印出遮光层,所述遮光层设有透光区;
    在所述遮光层的透光区喷绘图案,形成图案层;
    在所述图案层丝印出纹理层;
    将发光装置安装于所述透光板的内表面。
  16. 一种电器设备,其特征在于,包括如权利要求1-11中任一项所述的显示装置,且所述透光板为所述电器设备的外壳的一部分。
PCT/CN2022/104164 2021-07-07 2022-07-06 显示装置、显示装置的加工工艺和电器设备 WO2023280223A1 (zh)

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