Multifunctional display device
By constructing a multifunctional display device, utilizing a specific model of display screen, controller, character chip, and RS232 adapter module, combined with a power supply module, the problems of unstable, unclear, and slow display in traditional electronic devices were solved, achieving high-quality graphic and Chinese character display.
Patent Information
- Application Number
- CN202423297065.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional electronic devices have limitations in power management, communication capabilities, and display effects, resulting in unstable, unclear, and slow display of graphic and Chinese character information.
The device employs an SPMOL312A1 PMOLED display, an N32G430C8L7 controller, a GT20L16S1Y character chip, and a TPT3232E-TS3R RS232 adapter module. Combined with an AMS1117-3.3 step-down module and a CJ9340T6 boost module, a multi-functional display device is constructed to achieve stable, clear, and fast display of graphics and Chinese characters.
It achieves high-quality graphics and Chinese character display, ensures stable system operation, expands communication capabilities, and meets different display needs.
Smart Images
Figure CN223679799U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic display technical field especially, and it is a kind of multifunctional display device. BACKGROUND
[0002] In modern electronic equipment, electronic equipment with electronic display screen basically have graphic and Chinese character display function.But traditional electronic equipment or display system has certain limitation in power management, communication ability and display effect etc., so traditional electronic equipment or display system is poor in effect in stable, clear, fast display graphic and Chinese character information, but clear, fast display graphic and Chinese character information is crucial for user interaction and equipment function implementation.Therefore, a kind of multifunctional display device capable of providing the above effect is needed. SUMMARY
[0003] The utility model aims at at least in certain extent solve the technical problem in relevant technology.Therefore, the first purpose of the utility model is to provide a kind of multifunctional display device, it can be stable, clear, fast display graphic and Chinese character information.
[0004] To achieve the above-mentioned purpose, the utility model realizes by following technical scheme:
[0005] A kind of multifunctional display device, comprising:
[0006] Font chip, for storing the glyph data of multiple fonts;
[0007] Main control module is connected with the font chip, for calling glyph data of the font to be displayed to process and generate the display data of graphic and Chinese character;
[0008] Display screen is connected with the main control module, for displaying the display data.
[0009] Preferably, it further includes: RS232 adapter module is connected with the main control module, for realizing the communication of the main control module and external device.
[0010] Preferably, it further includes: screen drive circuit is connected with the display screen, for driving the display screen to display graphic and Chinese character.
[0011] Preferably, it further includes: voltage reduction module is connected with direct current power supply, for converting the first direct current output by the direct current power supply into second direct current, and output through first direct current end, to power supply the font chip, main control module, screen drive circuit and RS232 adapter module.
[0012] Preferably, the application further comprises a voltage boosting module connected with the DC power supply, for converting the first DC power outputted by the DC power supply into third DC power and outputting through a second DC terminal to power the display screen.
[0013] Preferably, the model of the font chip is GT20L16S1Y, the model of the master control module is N32G430C8L7, the model of the display screen is SPMOL312A1, the model of the RS232 adapter module is TPT3232E-TS3R, the model of the voltage reducing module is AMS1117-3.3, and the model of the voltage boosting module is CJ9340T6.
[0014] Preferably, the thirty-ninth, forty-second, fortieth and forty-first pins of the master control module are connected with the first, third, fifth and sixth pins of the font chip respectively.
[0015] The thirteenth to sixteenth pins of the master control module are connected with the thirteenth to sixteenth pins of the display screen respectively, and the nineteenth, twenty-first, twenty-second and twenty-fifth pins of the master control module are connected with the eighteenth, nineteenth, fourteenth and fifteenth pins of the display screen respectively.
[0016] The thirty-first and thirty-second pins of the master control module are connected with the eleventh and fourteenth pins of the RS232 adapter module respectively, and the twelfth and thirteenth pins of the RS232 adapter module are connected with external devices.
[0017] Preferably, the screen driving circuit comprises:
[0018] The first resistance to the third resistance, one end of the first resistance is connected with the seventeenth pin of the display screen, the other end of the first resistance is connected with the twenty-fourth and twenty-sixth pins of the display screen and the first DC terminal of the voltage reducing module; one end of the second resistance is connected with the twenty-second pin of the display screen, and the other end of the second resistance is grounded; one end of the third resistance is connected with the twenty-seventh pin of the display screen.
[0019] The first capacitor to the third capacitor, one end of the first capacitor to the third capacitor is connected with the twenty-fifth, twenty-sixth and twenty-ninth pins of the display screen respectively, and the other end of the first capacitor to the third capacitor is grounded, wherein the twenty-ninth pin of the display screen is also connected with the second DC terminal of the voltage boosting module.
[0020] The first diode and the second diode are connected in series, the anode of the first diode is connected with the other end of the third resistance, and the cathode of the second diode is grounded.
[0021] The cathode of the first diode is grounded, and the anode of the second diode is connected with the other end of the third resistance.
[0022] Preferably, the first pin of the voltage reduction module is grounded, the third pin is connected with the direct current power supply, and the second and fourth pins are connected and serve as the first direct current end.
[0023] Preferably, the first pin of the voltage reduction module is grounded, the third pin is connected with the direct current power supply, and the second and fourth pins are connected and serve as the first direct current end.
[0024] Preferably, the first pin of the voltage reduction module is grounded, the third pin is connected with the direct current power supply, and the second and fourth pins are connected and serve as the first direct current end.
[0025] The utility model has at least the following technical effects:
[0026] (1) The SPMOL312A1 type PMOLED display screen used in the utility model has the characteristics of self-luminous, fast response speed, wide temperature working storage temperature, high contrast ratio, etc., can clearly display graphics and Chinese characters, and realizes high-quality clear display.
[0027] (2) The N32G430C8L7 type controller used in the utility model can process various input signals, can realize accurate control on the whole system, the GT20L16S1Y type font chip used in the utility model stores the font data of various fonts, has rich font resources, and can meet different display requirements.
[0028] (3) The utility model can provide suitable working voltage for each module of the system through the direct current power supply, the voltage reduction module and the voltage increase module of the utility model, realizes stable power supply, and ensures stable operation of the system.
[0029] (4) The utility model uses the RS232 switching module to communicate with external equipment, realizes data transmission and control, expands the application range of the system, uses the TPT3232E-TS3R type chip to guarantee good external communication capability, and realizes efficient data transmission.
[0030] The additional aspects and advantages of the utility model will be partly given in the following description, will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 It is the structural block diagram of the multifunctional display device of the utility model embodiment.
[0032] Figure 2 It is the font chip circuit schematic diagram of the utility model embodiment.
[0033] Figure 3 The utility model embodiment's main control module circuit schematic view.
[0034] Figure 4 The utility model embodiment's display screen and screen drive circuit schematic view.
[0035] Figure 5 The utility model embodiment's RS232 adapter module circuit schematic view.
[0036] Figure 6 The utility model embodiment's step-down module circuit schematic view.
[0037] Figure 7 The utility model embodiment's step-up module circuit schematic view. DETAILED DESCRIPTION
[0038] The embodiment is described in detail below, and the examples of the embodiment are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiment described below by referring to the drawings is exemplary and is intended to explain the utility model, and cannot be understood as a limitation of the utility model.
[0039] The multifunctional display device of the embodiment is described below with reference to the drawings.
[0040] Figure 1 The utility model embodiment's multifunctional display device's structure block diagram is as shown in Figure 1 The multifunctional display device 100 includes the font chip 10, the main control module 20 and the display screen 30 connected in turn, and the RS232 adapter module 40 connected with the main control module 20, the screen drive circuit 50 connected with the display screen 30 and the step-down module 60 and the step-up module 70 for powering each module.
[0041] The font chip 10 stores various font data, when Chinese characters need to be displayed, the main control module 20 retrieves the font data of the to-be-displayed font from the font chip 10 to process and generate the to-be-displayed data of graphics and Chinese characters, and transmits the data to the display screen 30 for display.
[0042] Specifically, the main control module 20 is the core control component of the whole system, responsible for processing various input signals, executing specific programs and algorithms, and controlling the work of other modules. In terms of display, the main control module 20 calls the Chinese character dot matrix data stored in the font chip 10, then generates the to-be-displayed data of graphics and Chinese characters, and transmits these data to the display screen 30 for display through the parallel port 8080 protocol.
[0043] In this embodiment, the display screen 30 is a PMOLED (Passive Matrix Organic Light Emitting Diode) display screen, which is used to display graphics and Chinese characters. Under the driving of the screen driving circuit 50, the corresponding pixels are lit according to the display data from the main control module 20, so as to present images and texts. In this embodiment, the PMOLED display screen has the characteristics of self-luminous, fast response speed, high contrast ratio and the like.
[0044] More specifically, the screen driving circuit 50 responsible for driving the display screen 30 generates the voltage and current required for driving the display screen 30 through a specific power supply, so as to control the lighting and extinguishing of the pixels on the display screen 30, thereby realizing the display of images and texts.
[0045] It can be understood that the RS232 adapter module 40 in this embodiment communicates with external devices such as sensors, controllers, computers and the like through an RS232 (Serial Communication Interface) serial interface. RS232 is a commonly used serial communication standard. In this embodiment, the RS232 adapter module 40 can receive control signals (such as display instructions) or data from external devices, and transmit the state information or data of the system to external devices.
[0046] The power supply of the device is a 5V direct current power supply, which can come from an external power adapter or other power supply equipment. The 5V direct current power supply can provide working voltages for multiple modules including the screen driving circuit 50, the main control module 20 and the font chip 10 through the conversion of the voltage reduction module 60 and the voltage boosting module 70, so as to ensure the stable operation of the entire system.
[0047] In this embodiment, the voltage reduction module 60 is connected with the direct current power supply, which is used to convert the 5V first direct current output by the VCCN end of the direct current power supply into 3.3V second direct current and output through the first direct current end, so as to provide stable low-voltage power supply for the font chip 10, the main control module 20, the RS232 adapter module 40 and the screen driving circuit 50 with strict voltage requirements, and ensure their normal work. The voltage boosting module 70 is connected with the direct current power supply, which is used to convert the 5V first direct current output by the direct current power supply into 12V third direct current and output through the second direct current end, so as to provide high-voltage power supply for screen driving lighting, and ensure that the display screen 30 can normally display images and texts.
[0048] It should be noted that the types of the modules in this embodiment are as follows:
[0049] The model of the character library chip 10 is GT20L16S1Y, the model of the main control module 20 is N32G430C8L7, the model of the display screen 30 is SPMOL312A1, the model of the RS232 switching module 40 is TPT3232E-TS3R, the model of the voltage reduction module 60 is AMS1117-3.3, and the model of the voltage increase module 70 is CJ9340T6.
[0050] The SPMOL312A1 type PMOLED display screen has the characteristics of self-luminous, fast response speed, wide temperature working storage temperature, high contrast ratio and the like, and can clearly display graphics and Chinese characters in cooperation with the screen driving circuit 50, and high-quality clear display is realized. The N32G430C8L7 type controller can process various input signals, and accurate control of the whole system can be realized. The GT20L16S1Y type character library chip stores various font data, has rich character library resources, and can meet different display requirements. The AMS1117-3.3 type voltage reduction module and the CJ9340T6 type voltage increase module and the peripheral circuit design can realize stable power supply, and ensure stable operation of the system.
[0051] Figure 2 It is a character library chip circuit schematic diagram of the utility model embodiment. Figure 3 It is a main control module circuit schematic diagram of the utility model embodiment. Figure 4 It is a display screen and screen driving circuit schematic diagram of the utility model embodiment. Figure 5 It is a RS232 switching module circuit schematic diagram of the utility model embodiment. Figure 6 It is a voltage reduction module circuit schematic diagram of the utility model embodiment. Figure 7 It is a voltage increase module circuit schematic diagram of the utility model embodiment.
[0052] Based on Figures 2-7 Under the above hardware, the connection relationship between the various hardware modules realizing the above graphic and Chinese character display functions is as follows:
[0053] As shown in Figure 2 and Figure 3 The first, third, fifth and sixth pins of the character library chip 10 are connected with the 39th, 42nd, 40th and 41st pins of the main control module 20 respectively, wherein the first and third pins of the character library chip 10 are control terminals, and the fifth and sixth pins are data output terminals, that is, the output font data is Chinese character dot matrix data.
[0054] As shown in Figure 3 and Figure 4As shown in the figure, the 10th to 17th pins of the main control module 20, i.e. the D0 end to the D7 end, are connected to the 13th to 6th pins of the display screen 30 in sequence respectively, for transmitting the processed graphic and Chinese character display data. The 19th, 21st, 22nd and 25th pins of the main control module 20 are connected to the 18th, 19th, 14th and 15th pins of the display screen 30 respectively, and the 19th, 21st, 22nd and 25th pins of the main control module 20 are used as control ends to control the display screen 30.
[0055] As shown in the figure, Figure 3 and Figure 5 As shown in the figure, the 30th and 31st pins of the main control module 20 are connected to the 11th and 14th pins of the RS232 adapter module 40 respectively, i.e. data communication is carried out through the USART1 TX and USART1 RX two TTL (a kind of serial communication interface) interfaces, and the 12th and 13th pins of the RS232 adapter module 40 are connected to external devices, i.e. interaction is carried out with external devices through the RS232 TX and RS232 RX interfaces.
[0056] For example, when interaction with external devices is needed, such as uploading status data, the main control module 20 transmits data to the RS232 adapter module 40 through the USART1 TX and USART1 RX interfaces, and forwards the data to external devices through the RS232 TX and RS232 RX interfaces, and when display instructions are needed, the link is reversed, i.e. from external devices to the main control module 20.
[0057] As shown in the figure, Figure 4 The screen driving circuit 50 includes: a first resistor R1 to a third resistor R3, a first capacitor C1 to a third capacitor C3, a first diode D1 and a second diode D2.
[0058] One end of the first resistor R1 is connected to the 17th pin of the display screen 30, i.e. the BS1 end, and the other end of the first resistor R1 is connected to the 24th and 26th pins of the display screen 30, i.e. the VDDIO end and the VCI end, and the first direct current end VDDN of the voltage reduction module 60; one end of the second resistor R2 is connected to the 22nd pin of the display screen 30, i.e. the IREF end, and the other end of the second resistor R2 is grounded; one end of the third resistor R3 is connected to the 27th pin of the display screen 30, i.e. the VSL end.
[0059] One end of the first capacitor C1 to the third capacitor C3 is connected to the 25th, 26th and 29th pins of the display screen 30, i.e. the VDD end, the VCI end and the VCC end, respectively, and the other end of the first capacitor C1 to the third capacitor C3 is grounded, wherein the 29th pin of the display screen 30 is also connected to the second direct current end VPP of the voltage boosting module 70.
[0060] The first diode D1 and the second diode D2 are connected in series, the cathode of the first diode D1 is connected to the ground, and the anode of the second diode D2 is connected to the other end of the third resistor R3.
[0061] As shown in Figure 6 The first pin, i.e., the ADJ end, of the voltage reduction module 60 is connected to the ground, the third pin, i.e., the VIN end, of the voltage reduction module 60 is connected to the output end VCCN of the direct current power supply, and the second and fourth pins, i.e., the VOUT end and the TAB end, of the voltage reduction module 60 are connected and serve as the first direct current end VDDN.
[0062] As shown in Figure 7 The first pin, i.e., the SW end, of the voltage increase module 70 is connected to the sixth pin, i.e., the VIN end, of the voltage increase module 70 through the inductor L, the sixth pin, i.e., the VIN end, of the voltage increase module 70 is also connected to the output end VCCN of the direct current power supply, the fourth pin, i.e., the EN end, of the voltage increase module 70 is connected to the output end VCCN of the direct current power supply through the fourth resistor R4, and the second pin of the voltage increase module 70 is connected to the ground; the fifth pin, i.e., the VOUT end, of the voltage increase module 70 serves as the second direct current end VPP, is connected to the ground through the fifth resistor R5 to the seventh resistor R7 in series, and is connected to the ground through at least one group of capacitors, and the third pin, i.e., the FB end, of the voltage increase module 70 is connected to the ground through the seventh resistor R7.
[0063] The working principle of the utility model is as follows:
[0064] The external 5V direct current power supply is connected to the voltage reduction module 60 and the voltage increase module 70, the voltage reduction module 60 reduces the 5V voltage to 3.3V, i.e., the second direct current, to provide a stable low-voltage power supply for the character library chip 10, the main control module 20, the RS232 conversion module 40 and the screen driving circuit 50. The voltage increase module 70 increases the 5V voltage to 12V, i.e., the third direct current, to supply power to the display screen 30. The main control module 20 is started, when it is necessary to display Chinese characters, the external equipment sends a display instruction to the main control module 20 through the RS232 conversion module 40, the main control module 20 receives the display instruction, reads the corresponding character data from the character library chip 10, generates the to-be-displayed data of the graphics and Chinese characters according to the preset program, and transmits the to-be-displayed data to the display screen 30 through the parallel port 8080 protocol, and the screen driving circuit 50 drives the display screen 30 to display the images and texts. When it is necessary to upload the system state data, the main control module 20 can forward the system state data to the external equipment through the RS232 conversion module 40 to realize the information interaction with the external equipment.
[0065] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0066] Although the present application has been described in detail through the preferred embodiments, it should be appreciated that the above description is not to be considered as limiting the present application. Various modifications and alterations of the present application will be apparent to the skilled person upon reading the above description. It is intended that the scope of the present application be defined by the claims appended hereto.
Claims
1. A multi-function display device, characterized by comprising: The utility model relates to a multi-functional display device, including: A character library chip for storing glyph data of multiple fonts; A main control module connected with the character library chip for calling glyph data of a font to be displayed to process and generate display data of graphics and Chinese characters; A display screen connected with the main control module for displaying the display data.
2. The multi-functional display apparatus of claim 1, wherein Further including: An RS232 adapter module connected with the main control module for realizing communication between the main control module and external equipment.
3. The multi-functional display apparatus of claim 2, wherein Further including: A screen driving circuit connected with the display screen for driving the display screen to display graphics and Chinese characters.
4. The multi-functional display apparatus of claim 3, wherein Further including: A step-down module connected with a DC power supply for converting first DC power output by the DC power supply into second DC power and outputting through a first DC terminal to supply power to the character library chip, the main control module, the screen driving circuit and the RS232 adapter module.
5. The multi-functional display apparatus of claim 4, wherein Further including: A step-up module connected with the DC power supply for converting the first DC power output by the DC power supply into third DC power and outputting through a second DC terminal to supply power to the display screen.
6. The multi-functional display apparatus of claim 5, wherein The model of the character library chip is GT20L16S1Y, the model of the main control module is N32G430C8L7, the model of the display screen is SPMOL312A1, the model of the RS232 adapter module is TPT3232E-TS3R, the model of the step-down module is AMS1117-3.3 and the model of the step-up module is CJ9340T6.
7. The multi-functional display device according to claim 6, wherein the first, third, fifth and sixth pins of the character library chip are connected with the thirty-ninth, forty-second, fortieth and forty-first pins of the main control module, respectively; the tenth to seventeenth pins of the main control module are connected with the thirteenth to sixteenth pins of the display screen, respectively, and the nineteenth, twenty-first, twenty-second and twenty-fifth pins of the main control module are connected with the eighteenth, nineteenth, fourteenth and fifteenth pins of the display screen, respectively; the thirty and thirty-first pins of the main control module are connected with the eleventh and fourteenth pins of the RS232 adapter module, respectively, and the twelfth and thirteenth pins of the RS232 adapter module are connected with external equipment.
8. The multi-functional display apparatus of claim 6, wherein The screen driving circuit includes: first to third resistors, one end of the first resistor is connected with the seventeenth pin of the display screen, the other end of the first resistor is connected with the twenty-fourth and twenty-sixth pins of the display screen and the first DC terminal of the step-down module, one end of the second resistor is connected with the twenty-second pin of the display screen, and the other end of the second resistor is grounded, one end of the third resistor is connected with the twenty-seventh pin of the display screen; first to third capacitors, one end of each of the first to third capacitors is connected with the twenty-fifth, twenty-sixth and twenty-ninth pins of the display screen, respectively, and the other end of each of the first to third capacitors is grounded, wherein the twenty-ninth pin of the display screen is also connected with the second DC terminal of the step-up module; A first diode and a second diode are connected in series, the cathode of the first diode is connected to ground, and the anode of the second diode is connected to the other end of the third resistor.
9. The multifunctional display device of claim 6, wherein, The first pin of the voltage reduction module is connected to ground, the third pin is connected to the DC power supply, and the second and fourth pins are connected and serve as the first DC terminal.
10. The multifunctional display device of claim 6, wherein, The first pin of the voltage reduction module is connected to ground, the third pin is connected to the DC power supply, and the second and fourth pins are connected and serve as the first DC terminal. The fifth pin of the voltage reduction module serves as the second DC terminal, is connected to ground through the fifth resistor to the seventh resistor in series, and the third pin of the voltage reduction module is connected to ground through the seventh resistor.