Display circuit and displayer applied to dish washing machine

Abstract

The utility model discloses a display circuit applied to a dish-washing machine, which comprises a light-emitting module, a display screen, a driving chip, a control chip and a convex lens group, and is characterized in that the light-emitting module is used as a light-emitting source of the display circuit to emit light with at least one color; the display screen is used for displaying working information of the dishwasher; the driving chip is used for driving the display screen to display; the control chip is used for transmitting a display instruction sent by an upper computer to the driving chip according to the display instruction so as to enable the display screen to display display information transmitted by the upper computer, and controlling the light emitting module to emit light with different colors; and each convex lens is used for amplifying the light emitted by the light emitting module and adjusting the distance between the convex lenses so as to realize the reduction and / or amplification of fonts on the display screen. By means of the design, fonts can be shrunk and magnified, different display requirements can be met, a traditional display mode is avoided, and display colors are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the display technology field of household appliance especially is applied to a display circuit and display for dish washer. BACKGROUND

[0002] With people's living standards higher and higher, not only the performance of the product has higher demand, the appearance requirement of product also increases day by day, same product, same performance, often more gorgeous appearance can obtain the heart of consumer. Therefore, many small household electrical appliances are equipped with different color digital screen, such as ordinary nixie tube display, super-real digital screen, liquid crystal display screen and so on.

[0003] But because the display carrier of the above-mentioned display is fixed, the light-emitting color is also fixed, so the display is fixed size font, cannot be enlarged according to the scene demand, and cannot conveniently switch font display color, the adaptability of product is not strong. UTILITY MODEL CONTENT

[0004] In order to solve the technical defects in the background art, the utility model aims at providing a display circuit and display applied to dish washer, which can solve the problems mentioned in the background art.

[0005] The utility model adopts the following technical scheme:

[0006] Firstly, the embodiment provides a display circuit applied to dish washer, which comprises:

[0007] Light-emitting module, the light-emitting module is used as the light-emitting source of display circuit and emits light of at least one color;

[0008] Display screen, the display screen is used to display the working information of dish washer;

[0009] Drive chip, the drive chip is electrically connected with the display screen, and the drive chip is used to drive the display screen to display;

[0010] Control chip, the control chip is electrically connected with the drive chip, and the control chip is used to display the display information sent by the upper computer and transported to the drive chip according to the display instruction of the upper computer so that the display screen displays the display information transported by the upper computer, and controls the light-emitting module to emit light of different colors;

[0011] Convex lens group, each convex lens is used to magnify the light emitted by the light-emitting module, and the distance between each convex lens is adjusted to realize the reduction and / or magnification of the font on the display screen.

[0012] Optionally, the light-emitting module comprises:

[0013] A first light-emitting unit, which is electrically connected with the control chip, and is used for emitting a first light source based on a first light-emitting instruction sent by the control chip;

[0014] A second light-emitting unit, which is electrically connected with the control chip, and is used for emitting a second light source based on a second light-emitting instruction sent by the control chip.

[0015] Optionally, the first light-emitting unit comprises:

[0016] A first current-limiting unit, one end of which is electrically connected with the control chip, and is used for limiting the current output by the control chip;

[0017] A first switch unit, an input end of which is electrically connected with the other end of the first current-limiting unit;

[0018] A second current-limiting unit, which is electrically connected with an output end of the first switch unit;

[0019] A first LED, a cathode of which is electrically connected with an output end of the second current-limiting unit, and an anode of which is grounded, and which is used for being turned on / off according to the control instruction sent by the control chip.

[0020] Optionally, the second light-emitting unit comprises:

[0021] A third current-limiting unit, one end of which is electrically connected with the control chip, and is used for limiting the current sent by the control chip;

[0022] A second switch unit, an input end of which is electrically connected with the other end of the third current-limiting unit;

[0023] A second LED, a cathode of which is electrically connected with the second switch unit, and an anode of which is grounded.

[0024] Optionally, the second light-emitting unit further comprises a first capacitor, which is connected in parallel across the second LED.

[0025] Optionally, the first current-limiting unit comprises:

[0026] A first resistor, one end of which is electrically connected with the control chip, and the other end of which is electrically connected with the first switch unit;

[0027] A second resistor, one end of which is electrically connected with the control chip, and the other end of which is electrically connected with the first switch unit;

[0028] A third resistor, one end of the third resistor is electrically connected with the control chip, and the other end is electrically connected with the first switch unit.

[0029] Optionally, the first switch unit comprises:

[0030] A first triode, a base of the first triode is electrically connected with the control chip, and an emitter of the first triode is electrically connected with the second current-limiting unit;

[0031] A second triode, a base of the second triode is electrically connected with the control chip, and an emitter of the second triode is electrically connected with the second current-limiting unit;

[0032] A third triode, a base of the third triode is electrically connected with the control chip, and an emitter of the third triode is electrically connected with the second current-limiting unit.

[0033] Optionally, the second switch unit comprises:

[0034] A fourth triode, a base of the fourth triode is electrically connected with the control chip, and an emitter of the fourth triode is electrically connected with the second current-limiting unit;

[0035] A fifth triode, a base of the fifth triode is electrically connected with the control chip, and an emitter of the fifth triode is electrically connected with the second current-limiting unit.

[0036] Optionally, the display further comprises a communication interface, the communication interface is used for receiving display instructions sent by the host computer and conveying the display instructions to the control chip.

[0037] In a second aspect, the embodiment provides a display applied to a dishwasher, comprising the display circuit applied to the dishwasher mentioned above.

[0038] In conclusion, the display has the following advantages:

[0039] By using the synergistic effect of the light-emitting module, the display screen, the driving chip, the control chip and the convex lens group, the light-emitting module can emit light sources of different colors, and the magnification effect of the light source can be adjusted through the convex lens group, so that the font on the display screen can be reduced and enlarged, and different display requirements can be met. The control chip dynamically adjusts the display content and the font size according to the display instructions sent by the host computer, and can also control the light-emitting module to switch different light source colors, so that the display information is not only more vivid but also has visual impact. In addition, the adjustment function of the convex lens group can optimize the display effect of the display screen, meet the requirements of display clarity and font size in different environments, and improve the readability and aesthetics of the display content.

[0040] The above description is only a summary of the technical scheme of the present application, in order to make the technical means of the present application more clearly understood, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a part of the circuit diagram of the embodiment of the present application;

[0042] Figure 2 is the circuit diagram of the second light emitting unit of the embodiment of the present application;

[0043] Figure 3 is the circuit diagram of the first light emitting unit of the embodiment of the present application;

[0044] Figure 4 is another part of the circuit diagram of the embodiment of the present application.

[0045] Explanation of reference numerals in the drawings:

[0046] 100, light emitting module;

[0047] 110, first light emitting unit; 111, first current limiting unit; 112, first switch unit; 113, second current limiting unit;

[0048] 120, second light emitting unit; 121, third current limiting unit; 122, second switch unit;

[0049] D1, first LED light emitting diode; D2, second LED light emitting diode; C1, first capacitor;

[0050] R1, first resistor; R2, second resistor; R3, third resistor;

[0051] Q1, first triode; Q2, second triode; Q3, third triode; Q4, fourth triode; Q5, fifth triode; J1, communication interface; U1, control chip; U2, driving chip; LCD2, display screen. DETAILED DESCRIPTION

[0052] In order to make the content of the present application more easily and clearly understood, the present application is further described below according to specific embodiments and in conjunction with the drawings.

[0053] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0054] Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0055] As Figures 1 to 4 As shown in the figure, the display circuit applied to the dish washing machine is provided, which comprises a light emitting module 100, a display screen LCD2, a driving chip U2, a control chip U1 and a convex lens group. The light emitting module 100 is used as a light source of the display circuit to emit light of at least one color; the display screen LCD2 is used to display the working information of the dish washing machine; the driving chip U2 is electrically connected with the display screen LCD2, and the driving chip U2 is used to drive the display screen LCD2 to display; the control chip U1 is electrically connected with the driving chip U2, and the control chip U1 is used to display the display information sent by the upper computer and transported to the driving chip U2 to make the display screen LCD2 display the display information transported by the upper computer, and control the light emitting module 100 to emit light of different colors; each convex lens is used to magnify the light emitted by the light emitting module 100, and adjust the distance between each convex lens to realize the reduction and / or magnification of the font on the display screen LCD2.

[0056] In the embodiment of the present application, through the synergistic effect of the light-emitting module 100, the display screen LCD2, the driving chip U2, the control chip U1 and the convex lens group, dynamic, clear and adjustable display of the dishwasher working information is realized. The light-emitting module 100 as the light source of the display circuit can emit light of at least one color, and specifically can be three colors, namely red, green and blue. The light of the three different colors can also be combined into mixed light. The control chip U1 controls the driving chip U2 to drive the display screen LCD2 to display the working state and related information of the dishwasher according to the display instruction sent by the upper computer, and controls the light-emitting module 100 to emit light of different colors to enhance the dynamic effect of the display, so that the user can intuitively perceive the running condition of the dishwasher. The convex lens group is used to magnify the light emitted by the light-emitting module 100, and the distance between the convex lenses is adjusted to realize the reduction or enlargement of the font of the display screen LCD2, so as to adapt to the requirements of different scenes on the clarity and size of the display content, thereby further improving the readability.

[0057] Optionally, the light-emitting module 100 includes a first light-emitting unit 110 and a second light-emitting unit 120. The first light-emitting unit 110 is electrically connected with the control chip U1, and is used to emit a first light source based on a first light-emitting instruction sent by the control chip U1. The second light-emitting unit 120 is electrically connected with the control chip U1, and is used to emit a second light source based on a second light-emitting instruction sent by the control chip U1.

[0058] In the embodiment of the present application, the light-emitting module 100 includes a first light-emitting unit 110 and a second light-emitting unit 120, which are respectively electrically connected with the control chip U1. The control chip U1 sends a first light-emitting instruction and a second light-emitting instruction to the first light-emitting unit 110 and the second light-emitting unit 120 respectively based on the display instruction sent by the upper computer, so that the first light-emitting unit 110 emits a first light source and the second light-emitting unit 120 emits a second light source, to meet different display requirements. In the process of displaying the dishwasher working information on the display screen LCD2, different colored light sources are dynamically emitted through the light-emitting module 100, and the light rays are magnified and adjusted by the convex lens group, so as to form the zooming effect of the font on the display screen LCD2, so that the display content is clearer and has visual hierarchy. Through the cooperation of the first light source and the second light source, the display circuit not only improves the richness of the display effect, but also enhances the intuitiveness of information transmission and user experience.

[0059] Optionally, as Figure 3As shown, the first light-emitting unit 110 includes a first current-limiting unit 111, a first switching unit 112, a second current-limiting unit 113, and a first LED light-emitting diode D1. One end of the first current-limiting unit 111 is electrically connected to the control chip U1 and is used to limit the current output by the control chip U1. The input end of the first switching unit 112 is electrically connected to the other end of the first current-limiting unit 111. The second current-limiting unit 113 is electrically connected to the output end of the first switching unit 112. The cathode of the first LED light-emitting diode D1 is electrically connected to the output end of the second current-limiting unit 113, and the anode is grounded. The first LED light-emitting diode D1 is used to turn on / off according to the control command transmitted by the control chip U1.

[0060] In this embodiment, the first light-emitting unit 110 of the light-emitting module 100 includes a first current-limiting unit 111, a first switching unit 112, a second current-limiting unit 113, and a first LED light-emitting diode D1. Each component achieves stable light emission and dynamic control of the light source through precise circuit design. One end of the first current-limiting unit 111 is electrically connected to the control chip U1, which can limit the current output by the control chip U1 to ensure that the current is stable and within a safe range. The first switching unit 112 is electrically connected to the first current-limiting unit 111. Its input end receives the current signal after current limiting and is controlled by the control command sent by the control chip U1. The second current-limiting unit 113 is connected between the output end of the first switching unit 112 and the cathode of the first LED light-emitting diode D1 to further limit the output current and ensure the stable operation of the light-emitting diode. The cathode of the first LED light-emitting diode D1 is connected to the second current-limiting unit 113, and the anode is grounded. It realizes switching control according to the control command sent by the control chip U1 to emit a stable first light source.

[0061] Optional, such as Figure 2 As shown, the second light-emitting unit 120 includes a third current-limiting unit 121, a second switching unit 122, and a second LED light-emitting diode D2. One end of the third current-limiting unit 121 is electrically connected to the control chip U1 to limit the current supplied by the control chip U1. The input end of the second switching unit 122 is electrically connected to the other end of the third current-limiting unit 121. The cathode of the second LED light-emitting diode D2 is electrically connected to the second switching unit 122, and the anode is grounded.

[0062] In the embodiment of the present application, the second light-emitting unit 120 is composed of the third current-limiting unit 121, the second switch unit 122 and the second LED D2, and the stable light emission and control of the second light source are realized through accurate circuit design. One end of the third current-limiting unit 121 is electrically connected with the control chip U1, for limiting the current delivered by the control chip U1 to avoid damage to the circuit caused by excessive current; the input end of the second switch unit 122 is electrically connected with the other end of the third current-limiting unit 121, and is controlled by the control instruction of the control chip U1, and the dynamic control of the second light source is realized by controlling the on-off of the second switch unit 122; the cathode of the second LED D2 is connected with the second switch unit 122, and the anode is grounded, for realizing the switching of the light source according to the instruction sent by the control chip U1, and emitting stable light as the second light source.

[0063] Optionally, the second light-emitting unit 120 further comprises a first capacitor C1, which is connected in parallel with the two ends of the second LED D2.

[0064] In the embodiment of the present application, the first capacitor C1 is connected in parallel with the second LED D2, so that the second LED D2 can be filtered.

[0065] Optionally, the first current-limiting unit 111 comprises a first resistor R1, a second resistor R2 and a third resistor R3, one end of the first resistor R1 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112; one end of the second resistor R2 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112; one end of the third resistor R3 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112.

[0066] In the embodiment of the present application, the first current-limiting unit 111 is composed of the first resistor R1, the second resistor R2 and the third resistor R3, and the accurate control of the current and the stable operation of the circuit are realized through the three-way current-limiting design. One end of the first resistor R1 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112, for limiting the first current delivered by the control chip U1; one end of the second resistor R2 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112, for limiting the second current; one end of the third resistor R3 is electrically connected with the control chip U1, and the other end is electrically connected with the first switch unit 112, for limiting the third current. The three resistors share the current and work together, which not only can prevent overheating or damage caused by a single resistor bearing too high current, but also can enhance the current-limiting precision, ensure the stable input current of the first LED D1, and avoid uneven brightness or overload damage.

[0067] Optionally, the second switch unit 122 comprises a fourth transistor Q4 and a fifth transistor Q5, the base of the fourth transistor Q4 is electrically connected with the control chip U1, and the emitter is electrically connected with the second current limiting unit 113.

[0068] The base of the fifth transistor Q5 is electrically connected with the control chip U1, and the emitter is electrically connected with the second current limiting unit 113.

[0069] In the embodiment of the application, the second switch unit 122 is composed of the fourth transistor Q4 and the fifth transistor Q5, and the precise control of the second LED light emitting diode D2 is realized through two-way switch design. The base of the fourth transistor Q4 is electrically connected with the control chip U1, and the emitter is electrically connected with the second current limiting unit 113. The on-off state of the fourth transistor Q4 is controlled by the signal of the control chip U1, thereby affecting the current path of the second LED light emitting diode D2. The base of the fifth transistor Q5 is also electrically connected with the control chip U1, and the emitter is also electrically connected with the second current limiting unit 113. The fifth transistor Q5 cooperates with the fourth transistor Q4 to realize the independent or joint control of the second light source under the driving of the control chip U1.

[0070] Optionally, the display further comprises a communication interface J1, which is used to receive the display instruction sent by the host computer and deliver to the control chip U1.

[0071] In the embodiment of the application, the communication interface J1 can supply power for the control chip U1, the driving chip U2 and the display, and can also receive the display instruction for delivery, thereby controlling the display content of the display and the on / off of the light source.

[0072] In another embodiment, a display applied to a dishwasher is also provided, which comprises the display circuit applied to the dishwasher mentioned above, which is not shown in the figure. The display can comprise a circuit board, and the display circuit can be engraved on the circuit board. Through the above-mentioned scheme, the display effect of the dishwasher can be diversified, and the user experience can be improved. The specific structure is not described here.

[0073] The embodiments of the specific implementation are the preferred embodiments of the application, and are not limited to the protection scope of the application. The same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A display circuit applied to a dishwasher, characterized by, The utility model relates to a kind of display screen of washing machine, including: Light-emitting module, the light-emitting module is used as the light-emitting source of display circuit to emit at least one color light; Display screen, the display screen is used to display the working information of dishwasher; Drive chip, the drive chip is electrically connected with the display screen, and the drive chip is used to drive the display screen to display; Control chip, the control chip is electrically connected with the drive chip, and the control chip is used to display the display information of upper computer according to the display instruction sent by upper computer and transported to the drive chip to make the display screen display, and control the light-emitting module emits different color light; Convex lens group, each the convex lens is used to enlarge the light emitted by the light-emitting module, and the distance between each convex lens is adjusted to realize the font on the display screen is reduced and / or enlarged.

2. The display circuit applied to a dishwasher according to claim 1, characterized in that, The light-emitting module includes: First light-emitting unit, the first light-emitting unit is electrically connected with the control chip, and the first light-emitting unit is used to emit first light source based on the first light-emitting instruction sent by the control chip; Second light-emitting unit, the second light-emitting unit is electrically connected with the control chip, and the second light-emitting unit is used to emit second light source based on the second light-emitting instruction sent by the control chip.

3. The display circuit applied to a dishwasher according to claim 2, characterized in that, The first light-emitting unit includes: First current-limiting unit, one end of the first current-limiting unit is electrically connected with the control chip, for current limiting of the current output by the control chip; First switch unit, the input end of the first switch unit is electrically connected with the other end of the first current-limiting unit; Second current-limiting unit, the second current-limiting unit is electrically connected with the output end of the first switch unit; First LED, the cathode of the first LED is electrically connected with the output end of the second current-limiting unit, and the anode is grounded, and the first LED is used to open / close according to the control instruction transported by the control chip.

4. The display circuit applied to a dishwasher according to claim 2, characterized in that, The second light-emitting unit includes: Third current-limiting unit, one end of the third current-limiting unit is electrically connected with the control chip, for limiting the current transported by the control chip; Second switch unit, the input end of the second switch unit is electrically connected with the other end of the third current-limiting unit; Second LED, the cathode of the second LED is electrically connected with the second switch unit, and the anode is grounded.

5. The display circuit for a dishwasher according to claim 4, wherein The second light-emitting unit further includes a first capacitor, and the first capacitor is connected in parallel across the second LED.

6. The display circuit for a dishwasher according to claim 3, wherein The first current-limiting unit includes: First resistor, one end of the first resistor is electrically connected with the control chip, and the other end is electrically connected with the first switch unit; Second resistor, one end of the second resistor is electrically connected with the control chip, and the other end is electrically connected with the first switch unit; Third resistor, one end of the third resistor is electrically connected with the control chip, and the other end is electrically connected with the first switch unit.

7. The display circuit for a dishwasher according to claim 3, wherein The first switch unit includes: First triode, the base of the first triode is electrically connected with the control chip, and the emitter is electrically connected with the second current-limiting unit. A second triode, a base of the second triode being electrically connected with the control chip, an emitter being electrically connected with the second current-limiting unit; A third triode, a base of the third triode being electrically connected with the control chip, an emitter being electrically connected with the second current-limiting unit.

8. The display circuit for a dishwasher according to claim 4, wherein The second switch unit comprises: A fourth triode, a base of the fourth triode being electrically connected with the control chip, an emitter being electrically connected with the second current-limiting unit; A fifth triode, a base of the fifth triode being electrically connected with the control chip, an emitter being electrically connected with the second current-limiting unit.

9. The display circuit for a dishwasher according to claim 1, wherein, Further comprising a communication interface, the communication interface being used for receiving display instructions sent by an upper computer and conveying to the control chip.

10. A display applied to a dishwasher, characterized by, The display circuit is applied to a dishwasher according to any one of claims 1-9.

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