Display device and household appliance

Abstract

The utility model discloses a display device and a household appliance. The display device comprises a light-transmitting substrate, a pattern diaphragm, a backlight module, a touch sensing chip and a conductor piece, the pattern diaphragm at least comprises a light-transmitting pattern; the backlight module is arranged on the light incident side of the light-transmitting substrate, and light emitted by the backlight module penetrates through the light-transmitting substrate and the light-transmitting pattern to illuminate the light-transmitting pattern; when the light-transmitting pattern is touched, the touch sensing chip generates a touch control signal, and the backlight module emits light after receiving the touch control signal so as to illuminate the touched light-transmitting pattern; the first end of the conductor piece is electrically connected with the touch sensing chip, and the second end of the conductor piece abuts against the area, provided with the light-transmitting pattern, of the pattern diaphragm, or the second end of the conductor piece abuts against the area, opposite to the light-transmitting pattern in position, of the light-transmitting substrate. A touch electrode can be removed, and the touch sensitivity of the display device is improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a display device and a household appliance. Background Art

[0002] With the economic development and the improvement of living standards, consumers have higher and higher requirements for household appliances such as water heaters and water purifiers. In order to facilitate user operation, a display device is generally installed on the household appliance as an operation interface, and the user can perform operations such as mode adjustment and water temperature adjustment by performing touch operations on the display device. In the related art, the display device usually includes a pattern film and an electronic control component. A touch electrode is formed by using a conductor on the pattern film, and the touch electrode is electrically connected to the electronic control component through a conductive member. When the user touches the display device, the touch electrode generates a touch signal to the electronic control component to achieve the touch operation.

[0003] However, during the production of the display device, due to the limitations of the production process, it is difficult to closely fit the touch electrode and the pattern film, resulting in a low touch sensitivity of the display device. Utility Model Content

[0004] This application provides a display device and a household appliance, which can remove the touch electrode and improve the touch sensitivity of the display device.

[0005] In a first aspect, this application provides a display device, including: a light-transmitting substrate; a pattern film disposed on the light-transmitting substrate, the pattern film including at least one light-transmitting pattern; a backlight module disposed on the light-incident side of the light-transmitting substrate, the light emitted by the backlight module passing through the light-transmitting substrate and the light-transmitting pattern to illuminate the light-transmitting pattern; a touch sensing chip disposed on the light-incident side of the light-transmitting substrate and electrically connected to the backlight module. When touching the light-transmitting pattern, the touch sensing chip generates a touch signal, and after receiving the touch signal, the backlight module emits light to illuminate the touched light-transmitting pattern; and a conductor member, a first end of the conductor member is electrically connected to the touch sensing chip, a second end of the conductor member abuts against the area of the pattern film where the light-transmitting pattern is disposed, or the second end of the conductor member abuts against the area of the light-transmitting substrate opposite to the position of the light-transmitting pattern.

[0006] In some embodiments of this application, the pattern film is disposed on the light-incident side of the light-transmitting substrate and is adhered to the light-transmitting substrate, and the second end of the conductor member abuts against the area of the pattern film where the light-transmitting pattern is disposed. The pattern film can be hidden and protected by the light-transmitting substrate, and the pattern film can be prevented from being damaged due to factors such as scratching during use.

[0007] In some embodiments of the present application, the pattern film is a color film, which can simulate a more realistic color screen effect in household appliances.

[0008] In some embodiments of the present application, the conductor member is an elastic conductor member, which enables the conductor member to have strong stretchability, so that the conductor member contacts the pattern film or the light-transmitting substrate more closely, preventing poor contact.

[0009] In some embodiments of the present application, the backlight module includes: a bracket disposed on the light-incident side of the light-transmitting substrate; a lamp board disposed between the bracket and the light-transmitting substrate and connected to the bracket; and a plurality of light sources disposed on the lamp board and electrically connected to the lamp board, and the light sources are disposed facing the light-transmitting substrate. The lamp board is used to support the light sources. The light sources are placed on the lamp board and electrically connected to devices such as a power supply through the traces on the lamp board. The light emitted by the light sources irradiates the light-transmitting pattern of the pattern film to illuminate the light-transmitting pattern.

[0010] In some embodiments of the present application, a plurality of grooves arranged at intervals are provided on the bracket, and the grooves are arranged in one-to-one correspondence with the light-transmitting patterns; wherein, the backlight module includes multiple groups of light source groups, each group of light source groups includes at least one of the light sources, the light source groups are arranged in one-to-one correspondence with the grooves and are disposed in the grooves, the conductor members are arranged in one-to-one correspondence with the grooves, and the second ends of the conductor members are inserted into the grooves. This can ensure that there is an interval between the light sources and the pattern film, and further ensure that there is enough gap space for light propagation between the light sources and the pattern film.

[0011] In some embodiments of the present application, the conductor member is disposed around the periphery of the light source group to form a light-transmitting channel, preventing the conductor member from blocking the light sources.

[0012] In some embodiments of the present application, the backlight module further includes: an electronic control board disposed inside the bracket and on the side of the lamp board away from the light-transmitting substrate, and the electronic control board is electrically connected to the touch sensing chip and the lamp board. When touching the light-transmitting pattern, the touch sensing chip generates a touch signal, and after receiving the touch signal, the electronic control board controls the light sources to emit light to illuminate the touched light-transmitting pattern. Integrating the electronic control board, the lamp board and the conductor members on the bracket, when assembling the display device, connecting the bracket to the light-transmitting substrate can achieve the assembly of the display device, making the assembly of the display device more convenient.

[0013] In some embodiments of the present application, a card slot is provided on the light-transmitting side of the light-transmitting substrate, and the bracket is snap-fitted into the card slot, making the disassembly and assembly of the backlight module more convenient.

[0014] In a second aspect, the present application further provides a household appliance, including a household appliance body and the display device described in any one of the above embodiments, and the display device is arranged on the household appliance body.

[0015] The beneficial effects of the present application are as follows: By setting a touch sensing chip to control touch, the touch function of the display device is realized, so that it is not necessary to use a conductor on the pattern film to form a touch electrode, thereby avoiding the problem of low touch sensitivity of the display device caused by the difficulty of closely fitting the touch electrode and the pattern film. At the same time, the conductor can shorten the touch sensing distance between the touch sensing chip and the light-transmitting pattern, thereby improving the touch sensing sensitivity of the display device and enabling customers to obtain a better experience. In addition, compared with the integrated design of the pattern film and the touch electrode for realizing the touch function in the related art, in the present application, the pattern film is arranged on the transparent substrate, and the pattern film and the touch sensing chip for realizing the touch function are separately arranged, removing the bonding process between the touch electrode and the pattern film, making the manufacturing process of the display device simpler, with high production efficiency and lower production cost. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic exploded view of the components of the display device in an embodiment of the present application;

[0018] Figure 2 It is a schematic structural view of the display device in an embodiment of the present application.

[0019] Reference Numerals:

[0020] 10, transparent substrate; 20, pattern film; 21, light-transmitting pattern; 30, backlight module; 31, bracket; 311, groove; 32, lamp board; 33, light source; 34, electronic control board; 40, touch sensing chip; 50, conductor; 51, light-transmitting channel; 60, mounting structure; 61, card slot. Detailed Embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the present application in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] The present application provides a display device and a household appliance to solve the problem in the related art that a display device usually includes a pattern film and an electronic control component. A conductive body is used to form a touch electrode on the cover body, and the touch electrode is electrically connected to the electronic control component through a conductive member. When a user touches the display device, the touch electrode generates a touch signal to the electronic control component to achieve a touch operation. During the production of the display device, due to the limitation of the production process, it is difficult to closely attach the touch electrode to the pattern film, resulting in a low touch sensitivity of the display device.

[0023] In a first aspect, the present application provides a display device. As Figure 1 and Figure 2 shown, the display device includes a light-transmitting substrate 10, a pattern film 20, a backlight module 30, a touch sensing chip 40, and a conductor member 50.

[0024] Among them, the light-transmitting substrate 10 is used to provide protection for the pattern film 20, the backlight module 30, etc. The light-transmitting substrate 10 can be a light-transmitting glass plate or a light-transmitting plastic plate, etc. Of course, the preparation material of the light-transmitting substrate 10 can also be other materials with good light-transmitting performance, which is not specifically limited in the present application.

[0025] The pattern film 20 is disposed on the light-transmitting substrate 10, and the pattern film 20 includes at least one light-transmitting pattern 21; it can be understood that the pattern film 20 can be formed on the light-incident side or the light-emitting side of the light-transmitting substrate 10. The light emitted by the backlight module 30 can pass through the light-transmitting pattern 21 on the pattern film 20 to illuminate the light-transmitting pattern 21, so that the user can clearly view the light-transmitting pattern 21. The light-transmitting pattern 21 can be patterns of various types such as a background pattern and a touch pattern. The background pattern can be at least one of patterns such as an earth pattern, a moon pattern, and a lake surface pattern, which can improve the richness of the picture when the display device is displaying; the touch pattern can be at least one of patterns such as an opening and closing control pattern, a temperature control pattern, a time control pattern, and a mode control pattern. The touch pattern can be used to indicate that the user touches at a corresponding position on the full-screen display device to perform adjustments such as opening and closing control, temperature control, time control, and mode control, facilitating the user to accurately adjust. For example, the user can touch the area where the touch pattern is located on the display device to turn on and off the display device.

[0026] The backlight module 30 is disposed on the light-incident side of the light-transmitting substrate 10, and the light emitted by the backlight module 30 passes through the light-transmitting substrate 10 and the light-transmitting pattern 21 to illuminate the light-transmitting pattern 21; the backlight module 30 can provide light for the light-transmitting pattern 21 to illuminate the light-transmitting pattern 21.

[0027] The touch sensing chip 40 is disposed on the light incident side of the light transmissive substrate 10 and electrically connected to the backlight module 30. When the light transmissive pattern 21 is touched, the touch sensing chip 40 generates a touch signal. After receiving the touch signal, the backlight module 30 emits light to illuminate the touched light transmissive pattern 21. The touch sensing chip 40 can sense the touch operation of the user on the display device. When the user touches or approaches the light transmissive pattern 21, the touch sensing chip 40 generates a touch signal and transmits the touch signal to the backlight module 30. After determining the touch position according to the touch signal, the backlight module 30 illuminates the touched light transmissive pattern 21 corresponding to the touch position. The specific working principle of the touch sensing chip 40 has been publicly known in the related art and will not be elaborated in this application.

[0028] The first end of the conductor member 50 is electrically connected to the touch sensing chip 40, and the second end of the conductor member 50 abuts against the area of the pattern film 20 where the light transmissive pattern 21 is provided, or the second end of the conductor member 50 abuts against the area of the light transmissive substrate 10 opposite to the position of the light transmissive pattern 21. It can be understood that the conductor member 50 can be made of conductive materials such as copper, copper alloy or silver. When the pattern film 20 is disposed on the light incident side of the light transmissive substrate 10, the second end of the conductor member 50 abuts against the area of the pattern film 20 where the light transmissive pattern 21 is provided. When the pattern film 20 is disposed on the light exit side of the light transmissive substrate 10, the second end of the conductor member 50 abuts against the area of the light transmissive substrate 10 opposite to the position of the light transmissive pattern 21.

[0029] It should be noted that in this application, by setting the touch sensing chip 40 to implement the touch function of the display device, it is not necessary to form a touch electrode on the pattern film 20 using a conductor, thereby avoiding the problem that the touch electrode and the pattern film 20 are difficult to fit tightly, resulting in low touch sensitivity of the display device. At the same time, the conductor member 50 can shorten the touch sensing distance between the touch sensing chip 40 and the light transmissive pattern 21, thereby improving the touch sensitivity of the display device and enabling customers to obtain a better experience. In addition, compared with the integrated design of the pattern film 20 and the touch electrode for implementing the touch function in the related art, in this application, the pattern film 20 is disposed on the transparent substrate, and the pattern film 20 and the touch sensing chip 40 for implementing the touch function are separately disposed, removing the bonding process between the touch electrode and the pattern film 20, making the manufacturing process of the display device simpler, with high production efficiency and lower production cost.

[0030] In an embodiment, the pattern film 20 is disposed on the light incident side of the light transmissive substrate 10 and adhered to the light transmissive substrate 10. The light transmissive substrate 10 can be used to hide and protect the pattern film 20, preventing the pattern film 20 from being damaged due to factors such as scratching during use. Among them, the pattern film 20 can be connected to the light transmissive substrate 10 by an adhesive method, making the installation of the pattern film 20 more convenient.

[0031] In one embodiment, the pattern film 20 is a color film. It can be understood that, compared with a black and white film, when the light-transmitting pattern 21 on the color film is displayed, it has the advantages of vivid colors and high saturation, and the adjustable range of the display brightness of the light-transmitting pattern 21 is larger. When the light-transmitting pattern 21 on the color film is illuminated, it is displayed more clearly and beautifully. When the display device is applied to household appliances, a more realistic color screen effect can be simulated in the household appliances. Among them, the pattern film 20 can be a color offset printing film, a color self-adhesive printing film, a color film, or other color films.

[0032] In one embodiment, the conductor member 50 is an elastic conductor member. The conductor member 50 can be made of materials such as springs, metal shrapnel, conductive rubber, and conductive foam, so that the conductor member 50 has strong telescopic performance, so that the conductor member 50 is in closer contact with the pattern film 20 or the light-transmitting substrate 10, preventing poor contact.

[0033] Continue to refer to Figure 1 and Figure 2 As shown, in some embodiments of the present application, the backlight module 30 includes a bracket 31, a lamp board 32, and a plurality of light sources 33; the bracket 31 is disposed on the light-incident side of the light-transmitting substrate 10; the lamp board 32 is disposed between the bracket 31 and the light-transmitting substrate 10 and connected to the bracket 31; the light source 33 is disposed on the lamp board 32 and electrically connected to the lamp board 32, and the light source 33 is disposed facing the light-transmitting substrate 10.

[0034] Among them, the bracket 31 mainly plays a supporting role and can provide a supporting and installation space for devices such as the lamp board 32; the lamp board 32 is used to support the light source 33. The light source 33 is placed on the lamp board 32 and electrically connected to devices such as a power supply through the traces on the lamp board 32. The light emitted by the light source 33 irradiates on the light-transmitting pattern 21 of the pattern film 20 to illuminate the light-transmitting pattern 21.

[0035] In one embodiment, a plurality of grooves 311 arranged at intervals are provided on the bracket 31, and the grooves 311 are arranged in one-to-one correspondence with the light-transmitting patterns 21; the backlight module 30 includes multiple groups of light source groups, and each group of light source groups includes at least one light source 33. The light source groups are arranged in one-to-one correspondence with the grooves 311 and are disposed in the grooves 311. The conductor member 50 is arranged in one-to-one correspondence with the grooves 311, and the second end of the conductor member 50 is inserted into the groove 311. It can be understood that the groove 311 provides an installation space for the light source 33, and it can ensure that there is an interval between the light source 33 and the pattern film 20, so as to ensure that there is enough gap space for light propagation between the light source 33 and the pattern film 20; in addition, one group of light source groups is responsible for lighting one light-transmitting pattern 21, and one conductor member 50 assists in the touch sensing of one light-transmitting pattern 21. For example, when there are 4 light-transmitting patterns 21, there are 4 grooves 311, 4 groups of light source groups are provided, and 4 conductor members 50 are provided. One groove 311 is opposite to one light-transmitting pattern 21 in position, one light source group is placed in one groove 311, one conductor member 50 is opposite to one groove 311 in position and the second end of the conductor member 50 is inserted into the groove 311. When the user touches or approaches one light-transmitting pattern 21, the conductor member 50 corresponding to the light-transmitting pattern 21 enables the touch sensing chip 40 to sense the touch operation. The touch sensing chip 40 generates a touch control signal and transmits the touch control signal to the backlight module 30. After the backlight module 30 determines the touch position according to the touch control signal, it controls the light source group corresponding to the light-transmitting pattern 21 to light up and emit light to illuminate the light-transmitting pattern 21; in addition, the groove 311 can provide a limit for the conductor member 50, which can prevent the conductor member 50 from shifting in position and causing the touch sensitivity of the display device to decrease.

[0036] In one embodiment, the conductor member 50 is arranged around the circumferential side of the light source group to form a light-transmitting channel 51. The light-transmitting channel 51 can allow the light emitted by the light source 33 in the light source group to pass through, so as to prevent the conductor member 50 from blocking the light source 33.

[0037] Further, the outer peripheral surface of the conductor member 50 can be in contact with the inner side wall surface of the groove 311, so as to clamp the conductor member 50 in the groove 311 by using the inner side wall surface of the conductor member 50 and the groove 311, thereby realizing the installation and fixation of the conductor member 50.

[0038] In one embodiment, the backlight module 30 further includes an electronic control board 34. The electronic control board 34 is disposed within the bracket 31 and on the side of the lamp board 32 away from the light-transmissive substrate 10. The electronic control board 34 is electrically connected to the touch sensing chip 40 and the lamp board 32. When the touch-transmissive pattern 21 is touched, the touch sensing chip 40 generates a touch control signal. After receiving the touch control signal, the electronic control board 34 controls the light source 33 to emit light so as to illuminate the touched touch-transmissive pattern 21. It can be understood that the electronic control board 34 is used to control the turning on and off of the light source 33. The electronic control board 34 can be a circuit board. By installing the electronic control board 34 within the bracket 31, the bracket 31 can provide protection for the electronic control board 34, and the electronic control board 34, the lamp board 32, and the conductor member 50 are all integrated on the bracket 31. When assembling the display device, connecting the bracket 31 to the light-transmissive substrate 10 can achieve the assembly of the display device, making the assembly of the display device more convenient.

[0039] Further, the first end of the conductor member 50 can be in contact with the lamp board 32 and is electrically connected to the electronic control board 34 through the lamp board 32 to achieve electrical connection with the touch sensing chip 40. The touch sensing chip 40 is disposed on the side of the lamp board 32 facing the light-transmissive substrate 10 and is electrically connected to the electronic control board 34 through the lamp board 32 to shorten the distance between the touch sensing chip 40 and the light-transmissive substrate 10, thereby improving the touch sensitivity.

[0040] In one embodiment, a card slot 61 is provided on the light-transmissive side of the light-transmissive substrate 10. The bracket 31 is snap-fitted into the card slot 61, so that the bracket 31 can be connected to the light-transmissive substrate 10 by snap-fitting, making the loading and unloading of the bracket 31 more convenient. Specifically, an installation structure 60 is fixed on the light-transmissive side of the light-transmissive substrate 10, and the card slot 61 is provided on the installation structure 60, so that there is no need to open a slot on the light-transmissive substrate 10 to form the card slot 61.

[0041] In a second aspect, based on the above display device, the present application further provides a household appliance. The household appliance includes a household appliance body and the display device in any of the above embodiments. The display device is disposed on the household appliance body.

[0042] Among them, the household appliances include but are not limited to: rice cooker, water purifier, coffee maker, cooking machine, washing machine, water heater, refrigerator, or vending machine, etc.

[0043] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display device, characterized in that, Comprising: A light-transmissive substrate; A pattern film disposed on the light-transmissive substrate, the pattern film including at least one light-transmissive pattern; A backlight module disposed on the light-incident side of the light-transmissive substrate, light emitted by the backlight module passing through the light-transmissive substrate and the light-transmissive pattern to illuminate the light-transmissive pattern; A touch sensing chip disposed on the light-incident side of the light-transmissive substrate and electrically connected to the backlight module. When the light-transmissive pattern is touched, the touch sensing chip generates a touch signal, and after receiving the touch signal, the backlight module emits light to illuminate the touched light-transmissive pattern; And, A conductor member, a first end of the conductor member being electrically connected to the touch sensing chip, a second end of the conductor member abutting against an area of the pattern film where the light-transmissive pattern is provided, or the second end of the conductor member abutting against an area of the light-transmissive substrate opposite to the position of the light-transmissive pattern.

2. The display device according to claim 1, wherein The pattern film is disposed on the light-incident side of the light-transmissive substrate and adhered to the light-transmissive substrate, and the second end of the conductor member abuts against an area of the pattern film where the light-transmissive pattern is provided.

3. The display device according to claim 1, wherein The pattern film is a color film.

4. The display device according to claim 1, wherein The conductor member is an elastic conductor member.

5. The display device according to claim 1, wherein The backlight module includes: A bracket disposed on the light-incident side of the light-transmissive substrate; A lamp board disposed between the bracket and the light-transmissive substrate and connected to the bracket; A plurality of light sources disposed on the lamp board and electrically connected to the lamp board, the light sources being oriented towards the light-transmissive substrate.

6. The display device according to claim 5, characterized in that A plurality of grooves arranged at intervals are provided on the bracket, and the grooves are provided in one-to-one correspondence with the light-transmissive patterns; Wherein, the backlight module includes a plurality of groups of light source groups, each group of light source groups including at least one of the light sources, the light source groups being in one-to-one correspondence with the grooves and disposed in the grooves, the conductor members being in one-to-one correspondence with the grooves, and the second ends of the conductor members being inserted into the grooves.

7. The display device according to claim 6, wherein The conductor member is disposed around the periphery of the light source group to form a light-transmissive channel.

8. The display device according to claim 5, characterized in that The backlight module further includes: An electronic control board disposed in the bracket and on a side of the lamp board away from the light-transmissive substrate, the electronic control board being electrically connected to the touch sensing chip and the lamp board. When the light-transmissive pattern is touched, the touch sensing chip generates a touch signal, and after receiving the touch signal, the electronic control board controls the light sources to emit light to illuminate the touched light-transmissive pattern.

9. The display device according to claim 5, wherein A card slot is provided on the light-transmissive side of the light-transmissive substrate, and the bracket is snap-fitted into the card slot.

10. A household appliance, characterized in that, Including a home appliance body and a display device according to any one of claims 1 to 9, the display device being disposed on the home appliance body.

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