WO2023280226A1

WO2023280226A1 - Display apparatus, display apparatus processing process, and electrical device

Info

Publication number: WO2023280226A1
Application number: PCT/CN2022/104169
Authority: WO
Inventors: 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: 2021-07-07
Filing date: 2022-07-06
Publication date: 2023-01-12

Abstract

A display apparatus, a display apparatus processing process, and an electrical device. The display apparatus comprises: a PET membrane, the PET membrane comprising a PET layer, a texture layer, a pattern layer, and a light-shielding layer, the texture layer being provided on the back of the PET layer, the pattern layer and the light-shielding layer being provided on the side of the texture layer facing away from the PET layer, and the light-shielding layer comprising a light-transmitting area right opposite to at least part of a pattern on the pattern layer; a device housing, the device housing comprising a light-transmitting portion, and the light-shielding layer being attached to an outer surface of the light-transmitting portion of the device housing; and a light-emitting apparatus, the light-emitting apparatus being mounted on an inner surface of the light-transmitting portion of the device housing.

Description

Display device, processing technology of display device and electrical equipment

Cross References to Related Applications

This application requires that the application number submitted on July 7, 2021 be 2021107678805, the application name is "display device, processing technology of display device and electrical equipment", and the application number is 2021215368346, the application name is "display device and electrical equipment" The priority of the Chinese patent application of , which is incorporated by reference into this application in its entirety.

technical field

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.

Background technique

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. In the related art, the structure of the display device is usually such that the base material is clamped between PET films on both sides.

For this structure, firstly, when the touch key is installed under the pattern layer, in order to prevent wear and tear of the pattern layer, spring touch keys with lower cost cannot be used, which affects the production cost of the display device; The lower layer is equipped with a brighter light-emitting device, which affects the energy consumption of electrical equipment; thirdly, the pattern on the pattern layer can be seen even when the power is not turned on, so that the contrast of each control button of the display device is insufficient, which affects the use.

Contents of the invention

Aiming at the technical problems existing in related technologies, the embodiments of the present application provide a display device, a processing technology of the display device, and electrical equipment.

In a first aspect, an embodiment of the present application provides a display device, including:

PET film, the PET film comprises a PET layer, a texture layer, a pattern layer and a light-shielding layer, the texture layer is arranged on the back side of the PET layer, and the pattern layer and the light-shielding layer are arranged on the texture layer On the side away from the PET layer, the light-shielding layer includes a light-transmitting area facing at least part of the pattern on the pattern layer;

The equipment casing, the equipment casing includes a light-transmitting part, and the light-shielding layer is bonded to the outer surface of the light-transmitting part of the equipment casing;

A light-emitting device, the light-emitting device is installed on the inner surface of the light-transmitting part of the equipment casing.

In some embodiments, the texture layer includes multiple layers, and at least two layers have different colors.

In some embodiments, the light-shielding layer is an ink layer, and the ink layer is screen-printed on the side of the texture layer away from the PET layer.

In some embodiments, the pattern layer is formed on the side of the texture layer away from the PET layer by spray painting.

In some embodiments, the light-transmitting part of the device casing is made of ABS or PC material.

In some embodiments, the light emitting device includes:

A light guide plate, the light guide plate is located on the inner surface of the light-transmitting part of the device housing, and the top surface of the light-guiding plate is opposite to the inner surface of the light-transmitting part;

a side light emitting element, 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.

In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the light emitting surface of the light guide plate is provided with a light guide texture.

In some embodiments, the light guide plate is made of acrylic material.

In some embodiments, the light emitting device includes:

A digital tube, the digital tube is installed on the inner surface of the light-transmitting part of the device casing;

A touch element, the touch element is sandwiched between the light-transmitting part of the device casing and the nixie tube.

In the second aspect, the embodiment of the present application provides a processing technology of a display device, including:

Silk-screen the texture layer on the back of the PET layer;

Spraying a pattern on the surface of the texture layer away from the PET layer to form a pattern layer;

A light-shielding layer is screen-printed on the surface of the pattern layer away from the texture layer, and a light-transmitting area is set in an area directly facing at least part of the pattern to form a PET film;

Attaching the PET film to the outer surface of the light-transmitting part of the device housing;

The light-emitting device is mounted on the inner surface of the light-transmitting part of the equipment casing.

In some embodiments, 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.

In some embodiments, attaching the PET film to the outer surface of the light-transmitting part of the device housing includes:

Brush the side of the PET film close to the light-shielding layer with varnish, and attach it to the outer surface of the light-transmitting part of the device casing through the film interior decoration;

Alternatively, the PET film is laminated on the outer surface of the light-transmitting part of the device casing by compounding within the film.

In a third aspect, an embodiment of the present application provides an electrical device, including any one of the display devices described above, and the device housing is the housing of the electrical device.

The electrical equipment provided by the embodiment of the present application can reduce the patching process and improve the production efficiency during processing by directly integrating the texture layer, the pattern layer and the light-shielding layer on the PET layer and attaching it to the outer surface of the equipment casing. By omitting a part of the assembly structure there, the occupied installation space is smaller. 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.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings that need to be used in the descriptions of the embodiments or related technologies. Obviously, the drawings in the following description are the For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is one of the structural schematic diagrams of a display device provided by an embodiment of the present application;

Fig. 2 is the second structural schematic diagram of the display device provided by the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a light emitting device in a display device provided by an embodiment of the present application;

FIG. 4 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. 5 is a schematic flowchart of a manufacturing process of a display device provided by an embodiment of the present application.

Reference signs:

PET film 100, PET layer 110, texture layer 121, pattern layer 130, light shielding layer 140, varnish 141;

light-transmitting part 210;

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 element 350 , touch spring 351 , and digital tube 360 .

detailed description

The implementation manner of the present application will be further described in detail below with reference to the drawings and embodiments. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The application embodiments and simplified descriptions do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of this application, it should be noted that unless otherwise specified and limited, the terms "connected" 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. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application in specific situations.

In the embodiment of the present application, unless otherwise clearly specified and limited, 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 higher in level 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.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

A display device according to an embodiment of the present application will be described below with reference to FIGS. 1-4 .

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.

As shown in FIG. 1 and FIG. 2 , the display device includes: a PET (polyester resin) film, a device casing and a light emitting device 300 .

The PET film 100 is arranged on the outer surface side of the equipment casing, and the light emitting device 300 is arranged on the inner surface side of the equipment casing.

The PET film 100 comprises a PET layer 110, a texture layer 121, a pattern layer 130 and a light-shielding layer 140, the texture layer 121 is arranged on the back side of the PET layer 110, and the pattern layer 130 and the light-shielding layer 140 are arranged on the side of the texture layer 121 away from the PET layer 110. On one side, the light-shielding layer 140 includes a light-transmitting area, and the light-transmitting area is opposite to at least part of the pattern on the pattern layer 130 .

When the solid part of the light-shielding layer 140 is accurately aligned with the pattern of the pattern layer 130 , the light-shielding layer 140 and the pattern layer 130 are substantially flush in space, and the pattern layer 130 and the light-shielding layer 140 are basically the same layer.

During actual processing, the solid part of the light-shielding layer 140 will press the outer circle of the pattern, so that the PET layer 110, the texture layer 121, the pattern layer 130 and the light-shielding layer 140 can be sequentially arranged in layers.

The pattern layer 130 includes a plurality of patterns, and the patterns can be logos such as graphics or text. For example, taking a washing machine as an example, 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 contrasts.

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 .

In this way, 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.

It should be noted that, in the actual processing process, it is necessary to ensure that the pattern of the pattern layer 130 is aligned with the light-transmitting area of the light-shielding layer 140, so as to prevent incomplete display of the pattern or light leakage at the edge of the pattern.

During actual processing, 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 portion 210 . It can be understood that the pattern in the pattern layer 130 corresponding to the light-transmitting region of the light-shielding layer 140 can also be pasted on the outer surface of the light-transmitting portion 210 . The outer surface of the light-transmitting part 210 refers to the side of the light-transmitting part 210 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.

It should be noted that in the related art, two layers of PET layers are independently provided, and each layer of PET layer is respectively loaded with a pattern layer and a light-shielding layer, and then these two layers of PET layers with a pattern layer or a light-shielding layer are attached to the On both sides of the substrate, it is necessary to ensure that the light-shielding layer and the pattern layer across the substrate are aligned. The operation is difficult and the yield is difficult to guarantee.

The display device of the present application includes the PET layer 110, the texture layer 121, the pattern layer 130, the light-shielding layer 140, and the light-transmitting part 210 from the outside to the inside. This can reduce the placement process and improve the production efficiency during processing.

On the other hand, 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 part 210, which can reduce the number of PET layers 110 and have better light-transmitting properties, which can reduce the power of the light-emitting device 300. Or reduce the brightness of the light emitting device 300 to prolong the life of the light emitting device 300 .

The device casing includes a light-transmitting portion 210. For example, the device casing is made of a light-transmitting material in an area for installing a display device. For example, the light-transmitting portion 210 of the device casing is made of ABS or PC material.

The light-shielding layer 140 is attached to the outer surface of the light-transmitting portion 210 of the device casing.

The light-transmitting part 210 can pass through the light, and the light is irradiated from the light-emitting device 300 on the inside. At least part of the light passes through the light-transmitting part 210 and irradiates the pattern on the pattern layer 130. The pattern forms a larger gap with other surrounding areas. The contrast difference in brightness allows the user to see the pattern clearly.

It should be noted that in the related art, it is necessary to design an independent substrate to carry the pattern layer and light-shielding layer, so that when the display device is assembled into the electrical equipment, it is necessary to consider the independent assembly structure of the substrate, and it is necessary to place the display device at the position where the display device is located. Reserve a large enough installation location, which affects the spatial layout design of electrical equipment.

In the display device of the embodiment of the present application, the PET film 100 is directly arranged on the device casing, so that part of the assembly structure there can be omitted, and the installation space occupied is smaller.

The light-emitting device 300 is installed on the inner surface of the light-transmitting part 210 of the equipment casing, and can emit light toward the light-transmitting part 210 when the light-emitting device 300 is powered on.

Correspondingly, the irradiation direction of the light is: light emitting device 300 —transparent portion 210 —shading layer 140 —pattern layer 130 —texture layer 121 —PET layer 110 .

In the display device provided by the present application, by directly integrating the texture layer 121, the pattern layer 130, and the light-shielding layer 140 on the PET layer 110, and attaching them to the outer surface of the device casing, the patching process can be reduced and the production efficiency during processing can be improved. 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.

In some embodiments, the light-shielding layer 140 is bonded to the light-transmitting portion 210 . The light-shielding layer 140 can be adhered to the outer surface of the light-transmitting portion 210 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 portion 210 .

In actual implementation, 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 and saturation.

The light-shielding layer 140 can be an ink layer, and the ink layer is screen-printed on the back side of the texture layer 121. After the pattern layer 130 is spray-painted and formed on the back side of the texture layer 121, a pattern is formed on a part of the back side of the texture layer 121, 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.

In the process of actual processing, PET film 100 can be processed first, as shown in Figure 2, PET film 100 comprises PET layer 110, texture layer 121, pattern layer 130 and light-shielding layer 140, PET layer 110, 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. In the actual processing process, 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. Layer 121 may comprise multiple layers, and the colors of at least two layers are different;

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 light-shielding layer 140 may be an ink layer, and the ink layer is screen-printed on the side of the texture layer 121 away from the PET layer 110 .

For the PET film 100 formed by processing, the PET film 100 can be connected with the light-transmitting part 210 of the equipment casing through an in-film decoration or an in-film composite process, and the side of the light-shielding layer 140 is bonded to the light-transmitting part 210 .

As shown in FIG. 2 , the PET film 100 can be connected to the light-transmitting part 210 of the device casing by using varnish 141 through the way of film interior decoration.

In some embodiments, there are multiple light emitting devices 300 , the pattern layer 130 includes multiple patterns, and the multiple light emitting devices 300 correspond to the multiple patterns one by one. Correspondingly, each light emitting device 300 is provided with a corresponding control key, so that pressing each pattern can generate a corresponding control instruction.

The following describes the embodiments of the present application in detail from two different implementation angles.

1. The light emitting device 300 is a side light emitting device.

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 .

As shown in FIG. 3 , the light guide plate 310 is located on the inner surface of the light-transmitting portion 210, the inner surface of the light-transmitting portion 210 is the surface of the side of the light-transmitting portion 210 away from the light-shielding layer 140, and the inner surface of the light-transmitting portion 210 is in contact with the light guide plate. The top surfaces of 310 are oppositely disposed.

As shown in FIG. 4 , 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 the 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 .

It can be understood that the circuit board 340 is provided with touch keys, and when the conductive foam 330 is compressed, the corresponding touch keys can be triggered.

In actual use, each pattern in the pattern layer 130 can be provided with the light emitting device 300 correspondingly. When the target pattern is pressed, 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.

3 and 4, 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 .

In this way, when the display device is installed on the complete electrical equipment, the contact area between the light guide plate 310 and the light-transmitting portion 210 is larger, and the light transmission 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.

In some embodiments, as shown in FIG. 4 , 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.

In some embodiments, 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 elements 320 can be reflected to the light-transmitting portion 210 , and correspondingly, side light-emitting elements 320 with lower power can be provided.

In some embodiments, the reflective layer 311 may include reflective paper pasted on the light guide plate 310 .

Using reflective paper is low cost and easy to assemble.

2. The light emitting device 300 is bottom emitting.

In this embodiment, the light emitting device 300 may have various forms.

Firstly, the light emitting device 300 includes: a digital tube and an ITO touch film.

In this embodiment, the digital tube is mounted on the inner surface of the light-transmitting part, and the ITO touch film is sandwiched between the light-transmitting part 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.

Second, the light emitting device 300 includes: a digital tube 360 and a touch element 350 .

In this embodiment, the touch element 350 is sandwiched between the transparent portion 210 and the nixie tube 360 , and the touch element 350 can be a touch spring 351 .

It can be understood that, since 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 portion 210, the inner surface of the light-transmitting portion 210 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 for supplying power to the digital tube 360 and controlling the light-emitting state of the digital tube 360 .

The processing technology of the display device provided by the embodiment of the present application is described below, and the processing technology of the display device described below and the display device described above can be referred to in correspondence.

As shown in FIG. 5 , the manufacturing process of the display device provided by the embodiment of the present application includes: step 510 , step 520 , step 530 , step 540 and step 550 .

Step 510, screen-print the texture layer 121 on the back of the PET layer 110;

The method of direct screen printing has low processing difficulty and low cost.

In the actual processing process, the texture layer 121 attached to the back of the PET layer 110 can be formed on the back of the PET layer 110 through multi-degree silk screen printing as required to form a layered texture layer 121, which can realize blurred occlusion Effect.

Step 520, spraying a pattern on the surface of the texture layer 121 away from the PET layer 110 to form a pattern layer 130;

It should be noted that the shape of the pattern can be set according to the control function.

For example, taking a washing machine as an example, the pattern layer 130 may include patterns representing washing and dehydration, and characters representing water volume.

Taking a rice cooker as an example, the pattern layer 130 may include a pattern representing a rice cooking mode.

Each pattern can correspond to a control button, for example, the light emitting device 300 inside the pattern can be provided with a corresponding control button.

Step 530, screen-print the light-shielding layer 140 on the surface of the pattern layer 130 away from the texture layer 121, and set a light-transmitting area in the area facing at least part of the pattern to form a PET film 100;

After the pattern layer 130 is spray-painted and formed on the back of the texture layer 121, a pattern is formed on a part of the back of the texture layer 121, and then the light shielding layer 140 is screen-printed on the back of the texture layer 121, and the area where the pattern is located is left blank to form a transparent layer. In order to prevent light leakage from the edge of the pattern, the light-shielding layer 140 may partially overlap the edge of the pattern.

Through the above method, the formed PET film 100 has better pattern clarity, color reproduction, saturation and hiding effect.

Step 540, sticking the PET film 100 on the outer surface of the light-transmitting part 210 of the equipment casing;

There are at least two ways to implement this step:

First, brush the varnish 141 on the side of the PET film 100 close to the light-shielding layer 140, and attach the PET film 100 to the outer surface of the light-transmitting part 210 of the device casing through the interior decoration of the film;

Second, the PET film 100 is laminated on the outer surface of the light-transmitting portion 210 of the device housing through compounding within the film.

Through this step, a multilayer structure in which the PET film 100 is combined with the device casing can be obtained.

Step 550 , installing the light emitting device 300 on the inner surface of the light-transmitting part 210 of the equipment casing.

A display device can be obtained by assembling the multilayer structure obtained in step 540 with the light emitting device 300 .

According to the processing technology of the display device in the embodiment of the present application, the texture layer 121, the pattern layer 130 and the light-shielding layer 140 are integrated into the same layer of PET layer 110 through a composite process, and then the overall multi-layer structure is bonded to the device casing, 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 equipment housing is the housing of the electrical equipment.

In the electrical equipment of the embodiment of the present application, by directly integrating the texture layer 121, the pattern layer 130 and the light-shielding layer 140 on the PET layer 110, and attaching them to the outer surface of the equipment casing, the patching process can be reduced and the production efficiency during processing can be improved. , and part of the assembly structure can be omitted, and the installation space occupied is smaller. 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:

A device casing, the device casing includes a light-transmitting part, and the light-shielding layer is bonded to the outer surface of the light-transmitting part of the device casing;

In some embodiments, the light emitting device includes:

In some embodiments, the light guide plate is made of acrylic material.

In some embodiments, the light emitting device includes:

The present application also discloses a processing technology of a display device, including:

Silk-screen the texture layer on the back of the PET layer;

A light-shielding layer is screen-printed on the surface of the pattern layer away from the texture layer, and a light-transmitting area is provided in an area directly facing at least part of the pattern to form a PET film;

Attaching the PET film to the outer surface of the light-transmitting part of the device casing;

The present application also discloses an electrical device, comprising any one of the display devices described above, and the device housing is the housing of the electrical device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

The above embodiments are only used to illustrate the present application, but not to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and all should cover within the scope of the claims of this application.

Claims

A display device, characterized in that it comprises:

PET film, the PET film comprises a PET layer, a texture layer, a pattern layer and a light-shielding layer, the texture layer is arranged on the back side of the PET layer, and the pattern layer and the light-shielding layer are arranged on the texture layer On the side away from the PET layer, the light-shielding layer includes a light-transmitting area facing at least part of the pattern on the pattern layer;

A device casing, the device casing includes a light-transmitting part, and the light-shielding layer is bonded to the outer surface of the light-transmitting part of the device casing;

A light-emitting device, the light-emitting device is installed on the inner surface of the light-transmitting part of the equipment casing.
The display device according to claim 1, wherein the texture layer comprises multiple layers, and at least two layers have different colors.
The display device according to claim 1 or 2, wherein the light-shielding layer is an ink layer, and the ink layer is screen-printed on a side of the texture layer away from the PET layer.
The display device according to any one of claims 1-3, wherein the pattern layer is formed by spray painting on a side of the texture layer away from the PET layer.
The display device according to any one of claims 1-4, wherein the light-transmitting part of the device housing is made of ABS or PC material.
The display device according to any one of claims 1-5, wherein the light emitting device comprises:

A light guide plate, the light guide plate is located on the inner surface of the light-transmitting part of the device housing, and the top surface of the light-guiding plate is opposite to the inner surface of the light-transmitting part;

a side light emitting element, 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 display device according to claim 6, wherein the pins of the side light-emitting element are electrically connected to the circuit board, and the height of the part of the pins between the light guide plate and the circuit board is less than The height of the conductive foam.
The display device according to claim 7, wherein the light guide plate is arranged obliquely 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 that of the light guide plate The distance from the other end to the circuit board.
The display device according to any one of claims 6-8, characterized in that, the light emitting surface of the light guide plate is provided with a light guide texture.
The display device according to any one of claims 6-9, wherein the light guide plate is made of acrylic material.
The display device according to any one of claims 1-5, wherein the light emitting device comprises:

A digital tube, the digital tube is installed on the inner surface of the light-transmitting part of the device casing;

A touch element, the touch element is sandwiched between the light-transmitting part of the device casing and the nixie tube.
A processing technology for a display device, characterized in that it comprises:

Silk-screen the texture layer on the back of the PET layer;

Spraying a pattern on the surface of the texture layer away from the PET layer to form a pattern layer;

A light-shielding layer is screen-printed on the surface of the pattern layer away from the texture layer, and a light-transmitting area is provided in an area directly facing at least part of the pattern to form a PET film;

Attaching the PET film to the outer surface of the light-transmitting part of the device casing;

The light-emitting device is mounted on the inner surface of the light-transmitting part of the equipment casing.
The processing technology of the display device according to claim 12, wherein the silk-screen printing of the texture layer on the back of the PET layer comprises:

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 processing technology of the display device according to claim 12, wherein the bonding of the PET film to the outer surface of the light-transmitting part of the device casing comprises:

Brush the side of the PET film close to the light-shielding layer with varnish, and attach it to the outer surface of the light-transmitting part of the device casing through the film interior decoration;

Alternatively, the PET film is laminated on the outer surface of the light-transmitting part of the device casing by compounding within the film.
An electrical device, characterized in that it comprises the display device according to any one of claims 1-11, and the device housing is the housing of the electrical device.