Circuit with double liquid crystal display screens and oven

Abstract

The utility model discloses a circuit with double liquid crystal display screens and an oven, the circuit with double liquid crystal display screens comprises a main control module, a first driving module, a second driving module, a first liquid crystal display screen and a second liquid crystal display screen, the main control module, the first driving module and the first liquid crystal display screen are connected in sequence, and the main control module, the second driving module and the second liquid crystal display screen are connected in sequence; and the first driving module and the second driving module respectively drive the first liquid crystal display screen and the second liquid crystal display screen to display different information under the control of the main control module. According to the utility model, more information can be displayed through the two liquid crystal display screens, so that the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a double liquid crystal display circuit and an oven. Background Art

[0002] Existing household appliances are generally equipped with liquid crystal displays to display information such as menus, working status, and working parameters, so as to facilitate human-computer interaction. However, as the functions of these household appliances increase, the liquid crystal display needs to display more and more information, and a single liquid crystal display can no longer meet the needs of human-computer interaction. If this problem is solved by increasing the size of the display, it will cause the problem of inconvenience in installing the display. Utility Model Content

[0003] The utility model provides a double liquid crystal display circuit and an oven, which can display more information through two liquid crystal display screens, thereby improving the user experience.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] According to the first aspect of the utility model, an embodiment of the utility model provides a dual liquid crystal display circuit, including a main control module, a first drive module, a second drive module, a first liquid crystal display and a second liquid crystal display; the main control module, the first drive module and the first liquid crystal display are connected in sequence, and the main control module, the second drive module and the second liquid crystal display are connected in sequence; the first drive module and the second drive module respectively drive the first liquid crystal display and the second liquid crystal display to display different information under the control of the main control module.

[0006] In some embodiments, the main control module includes a chip SC95F8616.

[0007] In some embodiments, the first driving module and the second driving module both include a chip H-MXTX6306, and the chip H-MXTX6306 is connected to the chip SC95F8616 through two intermediate modules.

[0008] In some embodiments, the intermediate module includes a MOS tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a first connection end and a second connection end; the first connection end, the first resistor and the source of the MOS tube are connected in sequence, the DC power supply, the second resistor and the source of the MOS tube are connected in sequence, and the source of the MOS tube is grounded through the first capacitor; the gate of the MOS tube is connected to the DC power supply; the second connection end, the third resistor and the drain of the MOS tube are connected in sequence, the DC power supply, the fourth resistor and the drain of the MOS tube are connected in sequence, and the drain of the MOS tube is grounded through the second capacitor; the second connection ends of the two intermediate modules are both connected to the chip SC95F8616, the first connection end of one of the intermediate modules is connected to the 12th pin of the chip H-MXTX6306, and the first connection end of the other intermediate module is connected to the 11th pin of the chip H-MXTX6306.

[0009] In some embodiments, both the first driving module and the second driving module are connected to a storage module.

[0010] In some embodiments, the storage module includes a storage chip H-ZB25VQ16, a DC power supply, a resistor R2 and pin 1 of the storage chip H-ZB25VQ16 are connected in sequence, pin 1 of the storage chip H-ZB25VQ16 is connected to pin 40 of the chip H-MXTX6306, pin 2 of the storage chip H-ZB25VQ16 is connected to pin 43 of the chip H-MXTX6306, pin 5 of the storage chip H-ZB25VQ16 is connected to pin 42 of the chip H-MXTX6306, and pin 6 of the storage chip H-ZB25VQ16 is connected to pin 41 of the chip H-MXTX6306.

[0011] In some embodiments, several key modules are also included. The key modules are connected to the main control module, and the key modules include touch keys.

[0012] In some embodiments, a plurality of indication modules are further included, wherein the indication modules are connected to the main control module and the indication modules include indicator lights.

[0013] According to a first aspect of the utility model, an embodiment of the utility model provides an oven, comprising the dual liquid crystal display circuit as described in any one of the first aspects above.

[0014] The utility model has at least the following beneficial effects: the utility model comprises a first liquid crystal display screen and a second liquid crystal display screen, a main control module, a first driving module and the first liquid crystal display screen are connected in sequence, and the main control module, the second driving module and the second liquid crystal display screen are connected in sequence; under the control instruction of the control module, the first driving module drives the first liquid crystal display screen to display information, and the second driving module drives the second liquid crystal display screen to display information, and the first liquid crystal display screen and the second liquid crystal display screen display different information, so that the two liquid crystal display screens can display more information, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a module of a dual liquid crystal display screen circuit according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the circuit structure of a main control module of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the circuit structure of a first driving module in an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the circuit structure of a second driving module in one embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the circuit structure of a first intermediate module of an embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the circuit structure of a second intermediate module of an embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of the circuit structure of a storage module according to an embodiment of the utility model;

[0022] Figure 8 This is a schematic diagram of the circuit structure of a first liquid crystal display screen according to an embodiment of the utility model;

[0023] Fig. 9 This is a schematic diagram of the circuit structure of a key module of an embodiment of the utility model;

[0024] Fig.10 The figure is a schematic diagram of the circuit structure of an indication module according to an embodiment of the utility model.

[0025] The reference numerals are: a main control module 100 , a first driving module 210 , a second driving module 220 , a first liquid crystal display screen 310 , a second liquid crystal display screen 320 , a button module 400 , and an indication module 500 . DETAILED DESCRIPTION

[0026] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0027] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0029] The embodiment of the utility model provides a dual liquid crystal display circuit, such as Figure 1 As shown, it includes a main control module 100, a first drive module 210, a second drive module 220, a first liquid crystal display screen 310 and a second liquid crystal display screen 320. The main control module 100 is used for data processing and calculation, and may include a single-chip microcomputer chip, a DSP chip or other control chips, and may also include peripheral circuits when necessary. The main control module 100, the first drive module 210 and the first liquid crystal display screen 310 are connected in sequence. According to the control instruction of the main control module 100, the first drive module 210 can drive the first liquid crystal display screen 310 to display information; the main control module 100, the second drive module 220 and the second liquid crystal display screen 320 are connected in sequence. According to the control instruction of the main control module 100, the second drive module 220 can drive the second liquid crystal display screen 320 to display information, and the first liquid crystal display screen 310 and the second liquid crystal display screen 320 can display different information. In this way, the two liquid crystal display screens increase the display area and can display more information. The information displayed by the two liquid crystal display screens can also be freely set through the main control module 100, which improves the user experience.

[0030] In some embodiments, Figure 2As shown, the main control module includes the chip SC95F8616. The chip SC95F8616 is an enhanced 1T 8051 core industrial touch Flash microcontroller with an ultra-high-speed 1T8051 CPU core and an operating frequency of up to 32MHz; the IC integrates a hardware multiplier and divider and dual DPTR data pointers to accelerate data calculation and movement; the hardware multiplier and divider does not occupy CPU cycles, and the calculation is implemented by hardware, which is dozens of times faster than the multiplication and division implemented by software; the dual DPTR data pointer can be used to accelerate data storage and movement. It also has high performance and reliability, a wide operating voltage of 2.0V-5.5V, an ultra-wide operating temperature of -40℃-105℃, and is integrated with super rich hardware resources.

[0031] Further, such as Figure 3 and Figure 4 As shown, the first driving module and the second driving module both include a chip H-MXTX6306, and the chips H-MXTX6306 of the first driving module and the second driving module are connected to the chip SC95F8616 through two intermediate modules. For easy distinction, the two intermediate modules are respectively the first intermediate module and the second intermediate module.

[0032] like Figure 5 As shown, the first intermediate module includes a MOS tube M1, a resistor R52, a resistor R45, a resistor R40, a resistor R44, a capacitor C28, a capacitor C7, a first connection end, and a second connection end. The first connection end, the resistor R52, and the source of the MOS tube are connected in sequence, the DC power supply, the resistor R45, and the source of the MOS tube are connected in sequence, and the source of the MOS tube is grounded through the capacitor C28; the gate of the MOS tube is connected to the DC power supply; the second connection end, the resistor R40, and the drain of the MOS tube are connected in sequence, the DC power supply, the resistor R44, and the drain of the MOS tube are connected in sequence, and the drain of the MOS tube is grounded through the capacitor C7; the second connection end of the first intermediate module is connected to the 36th pin of the chip SC95F8616, and the first connection end of the first intermediate module is connected to the 12th pin of the chip H-MXTX6306,

[0033] like Figure 6 As shown, the circuit structure of the second intermediate module is the same as the circuit structure of the first intermediate module, the second connection end of the second intermediate module is connected to the 35th pin of the chip SC95F8616, and the first connection end of the second intermediate module is connected to the 11th pin of the chip H-MXTX6306.

[0034] Thus, the communication between the main control module and the first driving module is realized through the two intermediate modules, and the communication between the main control module and the second driving module is also realized.

[0035] In some embodiments, the first driving module and the second driving module are both connected to a storage module, and the storage module is used to store pictures to be displayed on the liquid crystal display screen.

[0036] Further, such as Figure 7 As shown, here the storage module connected to the first driving module is taken as an example, the storage module includes a storage chip H-ZB25VQ16, a DC power supply, a resistor R2 and pin 1 of the storage chip H-ZB25VQ16 are connected in sequence, pin 1 of the storage chip H-ZB25VQ16 is connected to pin 40 of the chip H-MXTX6306, pin 2 of the storage chip H-ZB25VQ16 is connected to pin 43 of the chip H-MXTX6306, pin 5 of the storage chip H-ZB25VQ16 is connected to pin 42 of the chip H-MXTX6306, and pin 6 of the storage chip H-ZB25VQ16 is connected to pin 41 of the chip H-MXTX6306.

[0037] Correspondingly, the storage module connected to the second driving module also includes a storage chip H-ZB25VQ16, and corresponding pins of the storage chip H-MXTX6306 are connected to corresponding pins of the chip H-MXTX6306 of the second driving module.

[0038] In some embodiments, Figure 8 As shown, the model of the first LCD display may be TFT-SMT-20A.

[0039] In some embodiments, Figure 1 As shown, the dual LCD display circuit also includes a plurality of key modules 400, which are connected to the main control module 100, and the key modules 400 include touch keys. Users can select corresponding functions and set related parameters by operating the touch keys to make the functions of the entire circuit more diverse.

[0040] like Fig. 9 As shown, the touch button can be a touch spring, and the touch spring, the intermediate resistor and the chip SC95F8616 are connected in sequence. In this embodiment, 7 touch springs can be set, which are SW1, SW2, SW3, SW4, SW5, SW6 and SW7 respectively.

[0041] In some embodiments, Figure 1 As shown, the dual LCD display circuit also includes a plurality of indication modules 500, which are connected to the main control module 100, and include indicator lights, which can indicate the working status of the electrical product to increase the display mode. The light is brighter than the display screen and is easier to be noticed by the user. The indicator light also displays the touch button to facilitate the user to find the touch button.

[0042] like Fig.10As shown, the indicator light may be an LED light. In this embodiment, seven indicator lights may be provided, namely LED1, LED2, LED3, LED4, LED5, LED6 and LED7, to indicate the seven touch springs accordingly.

[0043] The embodiment of the utility model further provides an oven, comprising the dual liquid crystal display circuit of any of the above embodiments. The specific description of the dual liquid crystal display circuit can be referred to the above embodiments, which will not be repeated here.

[0044] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A dual liquid crystal display circuit, characterized in that: It comprises a main control module, a first driving module, a second driving module, a first liquid crystal display screen and a second liquid crystal display screen; the main control module, the first driving module and the first liquid crystal display screen are connected in sequence, and the main control module, the second driving module and the second liquid crystal display screen are connected in sequence; the first driving module and the second driving module respectively drive the first liquid crystal display screen and the second liquid crystal display screen to display different information under the control of the main control module; The first driving module and the second driving module both include a chip H-MXTX6306, and the chip H-MXTX6306 is connected to the chip SC95F8616 through two intermediate modules; The intermediate module includes a MOS tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a first connection end and a second connection end; the first connection end, the first resistor and the source of the MOS tube are connected in sequence, the DC power supply, the second resistor and the source of the MOS tube are connected in sequence, and the source of the MOS tube is grounded through the first capacitor; the gate of the MOS tube is connected to the DC power supply; the second connection end, the third resistor and the drain of the MOS tube are connected in sequence, the DC power supply, the fourth resistor and the drain of the MOS tube are connected in sequence, and the drain of the MOS tube is grounded through the second capacitor; the second connection ends of the two intermediate modules are both connected to the chip SC95F8616, the first connection end of one of the intermediate modules is connected to the 12th pin of the chip H-MXTX6306, and the first connection end of the other intermediate module is connected to the 11th pin of the chip H-MXTX6306.

2. The dual liquid crystal display circuit according to claim 1, characterized in that: The main control module includes a chip SC95F8616.

3. The dual liquid crystal display circuit according to claim 2, characterized in that: The first driving module and the second driving module are both connected to a storage module.

4. The dual liquid crystal display circuit according to claim 3, characterized in that: The storage module includes a storage chip H-ZB25VQ16, a DC power supply, a resistor R2 and pin 1 of the storage chip H-ZB25VQ16 are connected in sequence, pin 1 of the storage chip H-ZB25VQ16 is connected to pin 40 of the chip H-MXTX6306, pin 2 of the storage chip H-ZB25VQ16 is connected to pin 43 of the chip H-MXTX6306, pin 5 of the storage chip H-ZB25VQ16 is connected to pin 42 of the chip H-MXTX6306, and pin 6 of the storage chip H-ZB25VQ16 is connected to pin 41 of the chip H-MXTX6306.

5. The dual liquid crystal display circuit according to any one of claims 1 to 4, characterized in that: It also includes a plurality of key modules, which are connected to the main control module and include touch keys.

6. The dual liquid crystal display circuit according to any one of claims 1 to 4, characterized in that: It also includes a plurality of indication modules, wherein the indication modules are connected to the main control module and the indication modules include indicator lights.

7. An oven, characterized in that: It comprises a dual liquid crystal display circuit as described in any one of claims 1 to 6.

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