CN114973965A

CN114973965A - Diaphragm, display panel, display device and household appliance

Info

Publication number: CN114973965A
Application number: CN202210699650.4A
Authority: CN
Inventors: 李碧荣; 曹春德; 张儒生; 孙杰义
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-08-30

Abstract

The embodiment of the application provides a diaphragm, a display panel, a display device and a household appliance, wherein the diaphragm is used for in-mold insert injection molding, and comprises a substrate layer and at least two functional layers, wherein the substrate layer is provided with an outer surface and an inner surface; a portion of each of the functional layers is printed on an outer surface of the substrate layer and the remaining portion of each of the functional layers is printed on an inner surface of the substrate layer. The diaphragm of this application embodiment, the production technology of two-sided printing is adopted to the substrate layer, and under the condition that the total number of piles of functional layer is the same, the number of piles of the functional layer that the unilateral can be reduced in two-sided printing, can reduce the defective rate because of the too much and result in number of piles of unilateral printing, promote the product percent of pass.

Description

Diaphragm, display panel, display device and household appliance

Technical Field

The application relates to the technical field of in-mold decoration, in particular to a membrane, a display panel, a display device and a household appliance.

Background

Taking a display panel of a household appliance as an example, an in-mold insert injection molding process adopted in the related technology is as follows: and (3) enabling each layer of printing layer to be arranged on the outer side of the base material layer of the diaphragm layer by layer, placing the printed diaphragm on the side wall of the die cavity, and then performing injection molding. The defective product rate of the film is high, so that the unqualified rate of the formed display panel is high.

Disclosure of Invention

In view of this, the embodiments of the present application are expected to provide a film, a display panel, a display device and a household appliance, which can improve the yield of products.

The embodiment of the application provides a diaphragm for mold insert moulds plastics, includes:

a substrate layer having an outer surface and an inner surface;

and at least two functional layers, wherein one part of each functional layer is printed on the outer surface of the substrate layer, and the rest part of each functional layer is printed on the inner surface of the substrate layer.

In some embodiments, each of the functional layers includes a graphics layer and a circuit layer, the circuit layer being located inside the graphics layer.

In some embodiments, the circuit layer, the substrate layer, and the graphic layer are sequentially arranged in an inside-to-outside direction.

In some embodiments, each of the functional layers includes a light uniformizing layer for uniformizing light, and the pattern layer and the circuit layer are located outside the light uniformizing layer.

In some embodiments, the light uniformizing layer, the base material layer, the circuit layer, and the graphic layer are sequentially arranged in an inside-to-outside direction.

In some embodiments, the light uniformizing layer, the circuit layer, the base material layer, and the graphic layer are arranged in this order in an inside-to-outside direction.

In some embodiments, the levelling layer is a diffusing ink layer.

In some embodiments, the diaphragm includes the spacing block and sets up in the substrate connecting band of the side of substrate layer, be provided with on the substrate connecting band with the connecting circuit of circuit electricity connection in the circuit printing layer, the spacing block covers the connecting circuit who prints in the substrate connecting band near substrate layer one end at least.

An embodiment of the present application provides a display panel, including:

the inner diaphragm is the diaphragm in any embodiment of the application;

and the injection molding layer is injected on the outer surface of the inner membrane.

In some embodiments, the display panel includes an outer film, and the injection molded layer is injection molded between the outer film and the inner film.

An embodiment of the present application provides a display device, including:

the display board box is provided with a luminous source;

and the display panel of any embodiment of this application, the display panel box set up in display panel's inboard, the light emitting source be used for to display panel output light.

In some embodiments, the display device includes a mounting bracket having a mounting space in which the display panel box is embedded, and the display panel is connected to the mounting bracket and covers the mounting space.

The embodiment of the application provides a household appliance, including casing and this application arbitrary embodiment display device, display device set up in on the casing.

In some embodiments, the household appliance is a laundry treatment apparatus comprising a knob for selecting a washing program, the display panel is provided with a through mounting hole, and the knob is rotatably disposed through the mounting hole.

The diaphragm of this application embodiment, the production technology of two-sided printing is adopted to the substrate layer, and under the condition that the total number of piles of functional layer is the same, the number of piles of the functional layer of unilateral can be reduced in two-sided printing, can reduce the defective rate because of the too much and lead to of number of piles of unilateral printing, promotes the product percent of pass.

Drawings

FIG. 1 is a schematic structural diagram of a diaphragm according to a first embodiment of the present application;

FIG. 2 is a schematic structural diagram of a diaphragm according to a second embodiment of the present application;

FIG. 3 is a schematic structural diagram of a diaphragm according to a third embodiment of the present application;

FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present application

FIG. 5 is an exploded view of the structure shown in FIG. 4;

FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present application;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

fig. 8 is an exploded view of the structure shown in fig. 6.

Description of the reference numerals

A membrane 10; a base material layer 11; a circuit layer 12; a graphics layer 13; a leveling layer 14;

an injection molding layer 20;

an outer membrane 30;

a base material connection tape 15;

a separator 16;

mounting holes 10 a;

a display panel 100;

a display device 1000;

a mounting frame 200;

display board box 300

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended 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 "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only used for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment of the present application provides a film 100 for a display panel.

For example, the injection molding material is injected on the outer surface of the membrane and forms the display panel through an In-Mold Decoration (IMD) process. Of course, it is understood that the film 100 may be applied to the display panel by other processes.

Referring to fig. 1 to 3, the film includes a substrate layer 11 and at least two functional layers.

The base material layer 11 has an outer surface and an inner surface. I.e. the outer and inner surfaces are located on opposite sides of the substrate layer 11.

The base layer 11 is a sheet having a certain structural strength and serves as a carrier for printing.

As a material of the base layer 11, a resin such as PET (Polyethylene terephthalate), PMMA (Polymethyl methacrylate), PC (Polycarbonate), PVC (Polyvinyl chloride), PP (Polypropylene), acrylic resin, or the like can be used.

A portion of each of the functional layers is printed on an outer surface of the substrate layer and the remaining portion of each of the functional layers is printed on an inner surface of the substrate layer. That is, the base material layer 11 is double-sided printed.

The printing method is not limited, and examples include, but are not limited to: in short, each functional layer printed on the base material layer 11 does not have a film-like carrier, and each functional layer is printed on the base material layer 11 layer by layer using the base material layer 11 as a carrier to obtain each functional layer.

The functional layer refers to a printed layer related to a function that the film sheet exhibits to the outside. For example, a pattern layer 13, a circuit layer 12, a light uniformizing layer 14, a gloss oil layer, and the like, which will be described below.

In the related art, all the functional layers are arranged outside the substrate layer 11, and due to the layer-by-layer arrangement, errors of all the functional layers are easy to accumulate and amplify, so that the reject ratio of the membrane product is high.

The diaphragm of this application embodiment, substrate layer 11 adopt the production technology of two-sided printing, and under the condition that the total number of piles of functional layer is the same, the number of piles of the functional layer that two-sided printing can reduce the unilateral can reduce the defective rate because of the too much and result in of the number of piles of unilateral printing, promote the product percent of pass.

The embodiment of the present application further provides a display panel 100, please refer to fig. 4 and fig. 8, which includes an inner film and an injection molding layer 20, wherein the inner film is the film 100 according to any embodiment of the present application.

The injection layer 20 is injected on the outer surface of the inner membrane, that is, the inner membrane is located on the inner side of the injection layer 20.

With injection-molded layer 20 as a reference, the outer side refers to the side facing the user and the inner side refers to the side facing away from the user.

In the related art, since the functional layer of the film is prone to generate more accumulated errors, the display effect of the display panel cannot meet the requirement, and the yield of the display panel is low.

The display panel of this application embodiment, because the functional layer of diaphragm is located substrate layer 11 relative both sides, the accumulative error obviously reduces, helps promoting display panel's qualification rate.

For example, referring to fig. 1 to 3, each functional layer includes at least a graphic layer 13 and a circuit layer 12. That is, the graphic layer 13 and the circuit layer 12 are both printed on the base material layer 11.

The specific type of graphics on the graphics layer is not limited, and includes, for example, but is not limited to: any one or any combination of a plurality of types of language characters (such as Chinese characters, English letters, French letters and the like), numbers, color combinations, patterns and graphs presented by areas with different gray values.

The pattern on the pattern layer 13 may be in color or black and white, and is not limited herein.

The circuit layer 12 has printed circuitry such that the circuit layer 12 as a whole takes the form of a flexible circuit.

The diaphragm of this application embodiment, with circuit layer 12 and the integrated printing of figure layer 13 on substrate layer 11, combine to become an organic whole, so, do not have the clearance between circuit layer 12 and the figure layer 13, can satisfy the figure display definition requirement after lighting, in addition, air, steam can not permeate between circuit layer 12 and the figure layer 13, can reduce the possibility that the diaphragm wets, guarantee touch sensitivity.

The diaphragm 100 of the application embodiment can print the graphic layer 13 first and then print the circuit layer 12, and also can print the circuit layer 12 first and then print the circuit layer 12, in a word, when printing the circuit layer 12 or the graphic layer 13 later, can make the position of the electronic component on the circuit layer 12 and the corresponding graphic on the graphic layer 13 carry out fine matching, promote the accuracy of the matching position.

For example, referring to fig. 4, 5 and 8, the film 100 includes a substrate connection strip 15 disposed at a side of the substrate layer 11 and a connection circuit printed on the substrate connection strip 15, wherein the connection circuit is used for electrically connecting a circuit in the printed circuit layer with an external circuit.

The substrate connecting tape 15 and the substrate layer 11 are cut out into a desired shape in the cutting process, that is, the substrate connecting tape 15 and the substrate layer 11 are integrally structured.

In the process of printing each functional layer on the base material layer 11, it is only necessary to print a connection circuit on the base material connection tape 15. There is no need to print a graphic layer or other layer on the substrate web 15.

The circuitry in the circuitry layer 12 is used to respond to a touch by the display panel 100. In this embodiment, the display panel 100 is a touch panel.

The display panel 100 is formed by an in-mold injection molding process. Prior to casting, the membrane 100 is placed in the cavity of the mold and fixed, for example, by vacuum suction, with the outer surface of the inner membrane facing the inside of the cavity. Then, a liquid resin material is injected into the mold, the mold is opened after cooling, the resin material is cooled to form the injection layer 20, and the diaphragm 100 is bonded to the inner surface of the injection layer 20. In the molding process, the base material layer 11 of the film 100 is not peeled off, and the film 100 is integrally bonded to the inner surface of the injection layer 20.

The display panel 100 of the embodiment of the application, because the diaphragm 100 is completely combined on the inner surface of the injection layer 20 as a whole, that is, the graphic layer 11 and the circuit layer 12 are both firmly attached to the inner surface of the injection layer 20, manual layer-by-layer film pasting is not needed, and the efficiency can be improved and the production cost can be reduced. In addition, no gap exists between the graphic layer 11 and the circuit layer 12, so that the moisture-proof and waterproof performance is better, and the touch sensitivity and reliability are improved. In addition, the positions of the electronic components on the circuit layer 12 can be well matched with the corresponding graphs on the graph layer 13, so that the consistency of the appearance of the display panel is high.

Referring to fig. 4 and 8, the display panel 100 further includes an outer film 30, and the injection molding layer 20 is injected between the outer film 30 and the inner film.

The specific configuration of the outer membrane 30 is not limited, and any one of the membranes in the prior art may be used.

In the process of in-mold injection molding, liquid resin material is poured on the inner surface of the outer membrane 30 and the outer surface of the inner membrane, after in-mold injection molding, the inner membrane, the injection molding layer 20 and the outer membrane 30 are combined into a whole, the inner membrane is combined on the inner surface of the injection molding layer 20, and the outer membrane 30 is combined on the outer surface of the injection molding layer 20.

The outer film 30 and the injection layer 20 are made of a light-transmitting material so that the graphics on the graphics layer 13 can be seen from the outside when the display panel 100 is lit.

The outer film 30 plays a better role in protecting the display panel 100, and reduces the possibility of scratching the surface of the display panel 100.

In the display panel 100 of the embodiment of the application, the circuit layer 12 and the graphic layer 13 are disposed on the inner film, when the display panel 100 is not lit, the graphic layer 13 and the circuit layer 12 are hardly displayed in the external view of the display panel 100 under the action of the outer film 30 and the injection layer 20, that is, when the display panel 100 is not lit, the graphic layer 13 and the circuit layer 12 are hardly visible from the outside by a user, and only when the display panel 100 is lit, the user can see the graphic on the graphic layer 13.

After the inner membrane is formed, a layer of protective film which is easy to tear off can be covered on the inner side and the outer side of the inner membrane, so that the inner membrane is protected.

After the outer membrane 30 is formed, a layer of protective film which is easy to tear off can be arranged on the inner side cover and the outer side cover of the outer membrane 30, so that the outer membrane 30 is protected.

For example, the display panel 100 may be formed by the following process.

First, after the inner and outer sheets 30 are printed and formed, the protective films on the surfaces of the inner sheet and the outer sheet 30 are peeled off. The inner and outer membranes 30 are subjected to surface dust removal, for example, a combination of manual dust removal and electrostatic dust removal.

Then, placing the inner membrane after dust removal on one side of the die cavity of the die, and carrying out vacuum adsorption and fixation; and placing the outer membrane 30 after dust removal on the other side of the die cavity of the die, and carrying out vacuum adsorption and fixation. For example, the inner membrane sheet is placed in the cavity of the stationary mold and the outer membrane sheet 30 is placed in the cavity of the movable mold; alternatively, the inner membrane sheet is placed in the cavity of the moving membrane and the outer membrane sheet 30 is placed in the cavity of the stationary membrane.

Thereafter, the mold is closed, and a resin material is injected into the mold, so that the inner and outer film sheets 30 are simultaneously brought into close contact with the injected resin material to be molded into a predetermined shape.

And (5) after the resin is cooled, opening the mold to obtain an injection molding product.

It should be noted that in some embodiments, the injection molded product may be a final product, i.e., no other process is needed.

In other embodiments, the injection molded product is a semi-finished product and further processing is required, for example, ultraviolet light is used to irradiate the injection molded product.

Illustratively, referring to fig. 1 and 2, the film sheet includes a light uniformizing layer 14 for uniformizing light, and the circuit layer 12 and the pattern layer 13 are disposed outside the light uniformizing layer 14. When the display panel 100 is lit, light passes through the display panel 100 from the inside to the outside of the display panel 100, the light passes through the light uniformizing layer 14 first and then passes through the circuit layer 12 and the graphic layer 13, and it should be noted that the order of the circuit layer 12 and the graphic layer 13 is not limited, for example, the light may pass through the circuit layer 12 first and then pass through the graphic layer 13, or may pass through the graphic layer 13 first and then pass through the circuit layer 12. In the process that the light passes through the light uniformizing layer 14, the light uniformizing layer 14 has a good light uniformizing effect, so that the brightness of the display panel 100 is uniform and soft, and a user cannot easily see a light emitting source at the back of the display panel.

The light uniformizing layer functions as a light uniformizing layer, and the printing material used for the light uniformizing layer is not limited. For example, in some embodiments, the leveling layer is a diffusion ink layer, that is, the printing material of the leveling layer is ink, and the ink is diffusion printed by printing, and it should be noted that the diffusion ink layer can transmit light.

For example, referring to fig. 1 and 2, the light uniformizing layer 14 is disposed on the inner surface of the substrate layer 11.

The ink in the levelling layer 14 has powdery particles which have a relatively weak binding force with the substrate layer 11 or adjacent other layers. The substrate layer 11 serves as a carrier of the inner membrane, and if the bonding force between the substrate layer 11 and the injection layer 20 is insufficient, the substrate layer 11 is likely to peel off, and the product becomes a defective product.

In this embodiment, because the light uniformizing layer 14 is disposed on the inner surface of the injection layer 20, after the inner membrane is bonded to the injection layer 20, the weak bonding force of the light uniformizing layer 14 does not affect the bonding force between the substrate layer 11 and the injection layer 20, and the substrate layer 11 and the injection layer 20 have a good bonding force, so that in the links of performing an environmental test and the like after the display panel 100 is formed, the substrate layer 11 is not easily peeled off from the injection layer 20, and the reliability of the display panel 100 can be ensured.

In this embodiment, since the light uniformizing layer 14 is disposed inside the substrate layer 11, even if the bonding force between the light uniformizing layer 14 and the substrate layer 11 is still weak, since the substrate layer 11 is used as a structural carrier, it is not easily peeled off from the injection layer 20, and the light uniformizing layer 14 itself is a thin coating layer, and the light uniformizing layer 14 itself does not have a sheet like the substrate layer 11, the light uniformizing layer 14 itself does not warp or peel off on the substrate layer 11.

For example, referring to fig. 1, fig. 2, and fig. 3, the graphic layer 13 is disposed on an outer surface of the circuit layer 12. In this embodiment, the graphics layer 13 shields the circuit layer 12, so that the user cannot easily see the circuit on the circuit layer 12.

It should be noted that the graphic layer 13 may completely shield the circuit layer 12, or a graphic area in the graphic layer 13 shields an electronic device in the circuit layer 12.

In some embodiments, the graphics layer 13 is disposed on the outer surface of the substrate layer 11, and the circuit layer 12 is disposed on the inner surface of the substrate layer 11. That is, the graphic layer 13 and the circuit layer 12 are located on the surfaces of the opposite sides of the base material layer 11.

In some embodiments, referring to fig. 2, the graphics layer 13 is disposed on the outer surface of the substrate layer 11, the circuit layer 12 is disposed on the inner surface of the substrate layer 11, and the circuit layer 12 is disposed between the light-homogenizing layer 14 and the substrate layer 11. In this embodiment, the light uniformizing layer 14 does not affect the bonding force between the circuit layer 12 and the substrate layer 11, and can also play a role of light uniformizing; in addition, the pattern layer 13 is arranged on the outer surface of the base material layer 11, and the ink on the pattern layer 13 can be better attached to the injection molding layer 20, so that a clearer appearance and a clearer appearance can be presented.

In other embodiments, referring to fig. 1, the graphics layer 13 and the circuit layer 12 are both disposed on the outer surface of the substrate layer 11, and the circuit layer 12 is disposed between the graphics layer 13 and the substrate layer 11.

In this embodiment, both the circuit layer 12 and the graphic layer 13 can be well attached to the injection molding layer 20, and the substrate layer 11 is located inside the circuit layer 12, so as to provide a good protection effect for the circuit layer 12.

In some embodiments, the levelling layer 14 is disposed on the inner most surface of the membrane.

In the embodiment of the present application, the outermost layer refers to the outermost layer, and there is no other printed layer on the side of the outermost layer away from the substrate layer 11.

In this embodiment, since the light uniformizing layer 14 performs the light uniformizing function, and the light uniformizing layer 14 is not scratched by a user or an external environment, there is no need to brush a layer on the surface of the light uniformizing layer 14. Therefore, the cost can be reduced on the premise of meeting the use performance.

For example, referring to fig. 4 and 8, the film includes a spacer 16, and the spacer 16 is disposed on the outer surface of the substrate connecting band 15 and covers at least the circuit printed on the end of the substrate connecting band 15 close to the substrate layer 11.

The spacer 16 functions to protect the circuit from being burned by the injected resin material during the injection molding process.

Specifically, the in-process of moulding plastics, place interior diaphragm in the die cavity of mould, the one end that substrate connecting band 15 is close to substrate layer 11 is located the die cavity, and the other end of keeping away from substrate layer 11 is located outside the die cavity, and the position that is located the die cavity can contact with the resin of pouring into, consequently, spacing block 16 need cover the position that substrate connecting band 15 is located the die cavity at least to isolated circuit and resin material prevent that resin material from burning out the circuit in the pouring process.

The base material connection tape 15 may be covered with the spacer 16 at a portion outside the cavity, or may not be covered with the spacer 16.

For example, the main steps for preparing the inner membrane of an embodiment are briefly described below.

The preparation process of the inner membrane comprises the following steps:

a material cutting step: the rolled film is cut into a substrate sheet, for example, a square shape, in a designed shape, and a sheet corresponding to the substrate layer 11 and the substrate connecting tape 15 are collectively cut.

Pre-shrinking step: the cut substrate pieces are placed into an oven for heating before printing to reduce the shrinkage probability.

Printing treatment: coating gloss oil, a circuit layer 12, a pattern layer 13, a light homogenizing layer 14 and the like on the cut base material sheet; and the base material sheet after printing treatment is placed in a high-temperature oven for drying, the ink is solidified, and the solvent in the ink is evaporated.

And (3) pasting a protective film: and protective films are pasted on the two sides of the base material sheet, so that the printed surface of the base material sheet is prevented from being scratched when a positioning hole is punched.

Punching a positioning hole: punching a positioning hole for punching and a positioning hole for hot press molding on the base material sheet, wherein the positioning hole for punching and the positioning hole for hot press molding are punched accurately.

Hot press molding: and (4) utilizing a hot-press forming die to carry out hot-press forming on the base material sheet, and forming the base material sheet into the shape of the product.

Punching: and shearing the waste material of the base material sheet after hot-press forming to obtain the inner membrane.

Several embodiments of the inner membrane of the present application are described below with reference to the accompanying drawings.

First embodiment

Referring to fig. 1, the inner film includes a substrate layer 11, a graphic layer 13, a circuit layer 12, and a light-homogenizing layer 14.

The light uniformizing layer 14, the base material layer 11, the circuit layer 12, and the pattern layer 13 are arranged in this order from the inside toward the outside.

In the process of preparing the inner membrane, before the circuit layer 12 is coated, a layer of varnish may be coated on the substrate layer 11, and the varnish has an isolation effect and can isolate the printing medium between two adjacent layers. After a layer of gloss oil is coated, the circuit layer 12 is coated, a layer of gloss oil is coated on the circuit layer 12, and then the pattern layer 13 is coated. The pattern layer 13 may not be coated with varnish, and of course, may be coated with varnish.

The sequential arrangement of the light uniformizing layer 14, the base material layer 11, the circuit layer 12, and the pattern layer 13 means an arrangement order of the four printing layers, and other printing layers may be selectively added or not added between the light uniformizing layer 14 and the base material layer 11, between the base material layer 11 and the circuit layer 12, and between the circuit layer 12 and the pattern layer 13.

Second embodiment

Referring to fig. 2, the inner film includes a substrate layer 11, a graphic layer 13, a circuit layer 12, and a light-homogenizing layer 14.

The light uniformizing layer 14, the circuit layer 12, the base material layer 11, and the pattern layer 13 are arranged in this order from the inside toward the outside.

It will be appreciated that the gloss oil described above may be applied between any two layers.

The sequential arrangement of the light uniformizing layer 14, the circuit layer 12, the base material layer 11, and the pattern layer 13 means an arrangement order of the four printing layers, and other printing layers may be selectively added or not added between the light uniformizing layer 14 and the circuit layer 12, between the circuit layer 12 and the base material layer 11, and between the base material layer 11 and the pattern layer 13.

Third embodiment

Referring to fig. 3, the main structure of the third embodiment is substantially the same as that of the second embodiment, mainly differing in that the leveling layer 14 is not provided in this embodiment.

The circuit layer 12, the base layer 11, and the pattern layer 13 are arranged in this order from the inside toward the outside.

For example, a member such as a film or frosted glass for light uniformization may be added between the light source and the display panel 100 to realize the light uniformizing effect.

The sequential arrangement of the circuit layer 12, the base layer 11, and the pattern layer 13 means an arrangement order of the three printed layers, and other printed layers may be selectively added or not added between the circuit layer 12 and the base layer 11, and between the base layer 11 and the pattern layer 13.

In the embodiments of the present application, only the circuit layer 12, the graphic layer 13, the base material layer 11, and the dodging layer 14 may be provided, and other functional layers may not be provided. Of course, other functional layers may be added as necessary.

Referring to fig. 6, 7 and 8, a display device 1000 according to an embodiment of the present application is provided, where the limiting device 1000 includes a display panel box 300 and a display panel 100 according to any embodiment of the present application.

The display board case 300 has a PCB board and a light emitting source integrated thereon.

The type of light emitting source is not limited, for example, a lamp bead, a lamp strip, etc.

The circuitry in the circuit layer 12 is electrically connected to the PCB board.

The PCB is used to control the light emitting source to output light to the display panel 100, and when the light emitting source emits light, the display panel 100 is lighted. This enables the display panel 100 to present a certain brightness to enable the user to view the graphics layer 13.

When the light emitting sources are switched off, the graphics layer 13 is hardly visible to the user.

The display apparatus 1000 further includes a mounting bracket 200, and the display panel box 300 and the display panel 100 are mounted on the mounting bracket 200.

The mounting bracket 200 provides mounting support for the panel box 300 and the display panel 100.

Illustratively, the mounting bracket 200 has a substantially frame-type structure, the mounting bracket 200 has a mounting space 200a, and the display board box 300 is inserted into the mounting space 200 a. When assembling, the display panel case 300 is fitted into the mounting space 200a from the rear side of the mounting bracket 200 and fixed to the mounting bracket 200, for example, by means of screws, snaps, or the like.

The display panel 100 is connected with the mounting block 200 and covers the mounting space 200 a. The display panel 100 is installed at the installation space 200 from the front side of the installation frame 200.

The application field of the display panel 100 of the embodiment of the present application is not limited, and the display panel can be used for any suitable product. Such as household appliances, communication terminals, automobiles, medical industries, and the like.

The embodiment of the application provides a household appliance, including casing and the display device 1000 of this application arbitrary embodiment, display device 1000 sets up on the casing.

The display panel 100 of the display device 1000 is a part of an external appearance of the home appliance, and a user can operate the display panel 100 to realize human-computer interaction.

The kinds of the home appliances are not limited, for example, a refrigerator, an air conditioner, an electric rice cooker, a laundry treating apparatus, etc.

Here, the specific type of the laundry treating apparatus is not limited, and for example, may be one of a washing machine, a dryer, and a washer-dryer, or a suit apparatus in which a washing machine and a dryer are stacked in an up-down direction.

Exemplarily, a home appliance is taken as the laundry treatment apparatus.

The laundry treating apparatus includes a knob that a user can rotate to select a wash program, for example, a standard wash, a quick wash, a wool wash, a cartridge self-cleaning, etc.

Referring to fig. 4 and 8, the display panel 100 is provided with a through mounting hole 10a, and the knob is rotatably disposed through the mounting hole 10 a.

In this embodiment, the user can touch the display panel 100 to select parameters corresponding to the washing and caring process, such as temperature, water amount, etc.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples described herein may be combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A film for a display panel, comprising:

a substrate layer having an outer surface and an inner surface;

at least two functional layers, wherein a portion of each functional layer is printed on the outer surface of the substrate layer and the remaining portion of each functional layer is printed on the inner surface of the substrate layer.

2. The membrane of claim 1 wherein each of said functional layers includes a graphics layer and a circuit layer, said circuit layer being located on an inner side of said graphics layer.

3. The membrane of claim 2, wherein said circuit layer, said substrate layer and said graphic layer are arranged in sequence in an inboard to outboard direction.

4. The film according to claim 2, wherein each of said functional layers comprises a light homogenizing layer for homogenizing light, and said pattern layer and said circuit layer are located outside said light homogenizing layer.

5. The film according to claim 4, wherein the light uniformizing layer, the base material layer, the circuit layer and the pattern layer are arranged in this order in an inside-to-outside direction.

6. The film according to claim 4, wherein the light uniformizing layer, the circuit layer, the base material layer, and the pattern layer are arranged in this order in an inside-to-outside direction.

7. A film according to any of claims 4 to 6 wherein the levelling layer is a diffusing ink layer.

8. The membrane of claim 2, wherein the membrane comprises a spacer and a substrate connecting strip disposed at a side of the substrate layer, the substrate connecting strip is provided with a connecting circuit electrically connected to the circuit in the circuit layer, and the spacer covers at least the connecting circuit printed at one end of the substrate connecting strip near the substrate layer.

9. A display panel, comprising:

an inner membrane sheet, said inner membrane sheet being the membrane sheet of any one of claims 1-8;

10. The display panel of claim 9, wherein the display panel comprises an outer membrane, and wherein the injection molded layer is injection molded between the outer membrane and the inner membrane.

11. A display device, comprising:

the display board box is provided with a luminous source;

the display panel of claim 9 or 10, the display panel box being disposed inside the display panel, the light source being configured to output light to the display panel.

12. The display device according to claim 11, wherein the display device includes a mounting bracket having a mounting space in which the display panel box is embedded, and the display panel is connected to the mounting bracket and covers the mounting space.

13. A domestic appliance comprising a housing and a display device as claimed in claim 11 or 12, said display device being arranged on said housing.

14. The household appliance according to claim 13, wherein the household appliance is a laundry treatment apparatus comprising a knob for selecting a washing program, the display panel being provided with a through mounting hole, the knob being rotatably disposed through the mounting hole.