CN215182856U - TFT and LED integrated digital screen - Google Patents
TFT and LED integrated digital screen Download PDFInfo
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- CN215182856U CN215182856U CN202121654066.4U CN202121654066U CN215182856U CN 215182856 U CN215182856 U CN 215182856U CN 202121654066 U CN202121654066 U CN 202121654066U CN 215182856 U CN215182856 U CN 215182856U
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Abstract
The utility model discloses a TFT and integrated digital screen of LED, including master control MCU, LED digital screen and TFT screen, master control MCU is connected with LED digital screen and TFT screen respectively, and single master control MCU drive control LED digital screen and TFT screen simultaneously. The TFT and LED integrated digital screen of the utility model enables the display area of the household appliance to be more concentrated, and the integration mode is more beneficial to the structure installation; the TFT screen, the LED digital screen and the control panel are integrated, so that the space volume is extremely small, and the structure is simple; the single MCU is used for controlling, so that the communication problem is avoided, and the stability is high; the single MCU peripheral circuit is simple and low in cost.
Description
Technical Field
The utility model belongs to the technical field of the display screen, concretely relates to integrated digital screen of TFT and LED.
Background
At present, more and more household appliance display screens can adopt a mode of combining an LED digital screen (2) with a TFT color screen, and the traditional scheme can adopt an independent TFT drive board and a mode of adding the LED digital screen (2). With the above form, a larger TFT drive board and a larger LED digital screen (2) are needed, and the following disadvantages are caused: (1) the structure is complex, and the occupied space is large; (2) the logic is complex, and both the TFT and the LED digital screen (2) need to be controlled; (3) the cost is high, a set of driving MCU and peripheral circuit need to be made for the TFT, and a set of LED controlled MCU and peripheral circuit need to be made, so that the device is very complex and extremely high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the TFT and LED integrated digital screen is characterized in that TFT drive control and LED drive control are integrated and controlled by the same MCU.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme as follows:
the TFT and LED integrated digital screen comprises a master control MCU, an LED digital screen and a TFT screen, wherein the master control MCU is respectively connected with the LED digital screen and the TFT screen, and a single master control MCU drives and controls the LED digital screen and the TFT screen simultaneously.
Preferably, the main control MCU1 adopts a dual-core controller, wherein a dual-core controller is connected to the TFT screen at a high speed and a single core is connected to the LED digital screen to control the display of the TFT screen, and the other single core is connected to the LED digital screen to control the display of the LED digital screen.
Preferably, the main control MCU is connected with the TFT screen through a QSPI interface.
Preferably, the master control MCU is further connected with a sensor, and the master control MCU1 is connected with the lamp driver through an I2C, SPI or UART interface.
Preferably, the sensor is selected according to a kind of the home appliance, and includes a temperature sensor, a water level sensor, a turbidity sensor, or a door state sensor.
Preferably, the master control MCU is further connected with the lamp driver, and the master control MCU1 and the lamp driver are connected through I2C or SPI interface connection.
Preferably, the TFT screen and the LED digital screen are arranged side by side, or the LED digital screen is arranged on two sides of the TFT screen, and the PCB is arranged below the TFT screen and the LED digital screen.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:
the TFT and LED integrated digital screen of the utility model has more centralized display area of household appliances, so that the integration mode is more beneficial to the structure installation; the TFT screen, the LED digital screen and the control panel are integrated, so that the space volume is extremely small, and the structure is simple; the single MCU is used for controlling, so that the communication problem is avoided, and the stability is high; the single MCU peripheral circuit is simple and low in cost.
Drawings
FIG. 1 is a schematic diagram of an external structure of a TFT and LED integrated digital screen;
FIG. 2 is a cross-sectional view of a TFT and LED integrated digital screen;
fig. 3 is a logic block diagram of a TFT and LED integrated digital screen.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1-3, the TFT and LED integrated digital screen of the present application includes a main control MCU1, an LED digital screen 2 and a TFT screen 3, the main control MCU1 is connected to the LED digital screen 2 and the TFT screen 3, and the single main control MCU1 drives and controls the LED digital screen 2 and the TFT screen 3 simultaneously. The main control MCU of the digital screen is connected with the main control board of the household appliance to perform data interaction.
The main control MCU1 adopts a dual-core controller, the dual-core controller is connected with the TFT screen 3 at a high speed and is used for controlling the display of the TFT screen 3, and the other single core is connected with the LED digital screen 2 and is used for controlling the display of the LED digital screen 2. The dual-core controller adopts dual-core controllers of brands such as Feichalcar, Intel or AMD and the like, and is selected according to the requirements of household appliances with different performances. The master control MCU1 of the embodiment adopts an MCU chip with the model number CY8C6245AZI-S3D 12.
The TFT means that each liquid crystal pixel point on the liquid crystal display is driven by a thin film transistor integrated behind the TFT, the TFT screen has the advantages of high responsivity, high brightness, high contrast and the like, and the main control MCU1 is connected with the TFT screen 3 through a QSPI interface. The QSPI interface can transmit a transmission queue containing up to 16 8-bit data or 16-bit data at one time. Once transmission is started, CPU intervention is not needed until transmission is finished, and transmission efficiency is greatly improved.
The master control MCU1 is also connected with a sensor 4, and a gap between the master control MCU1 and the lamp driver 5 is formed by I2C. SPI or UART interface connections. The sensor 4 is selected according to the kind of the home appliance, and includes a temperature sensor, a water level sensor, a turbidity sensor, a door state sensor, or the like. Sensors employed in refrigerators include, for example, a freezer compartment sensor, a refrigerator compartment environment sensor, a frost sensor, a current sensor to detect operation of the refrigerator, and the like. Sensors commonly used in, for example, washing machines include temperature sensors, water level sensors, dirt sensors, photoelectric sensors, pressure sensors, vibration sensors, and the like.
The master control MCU1 is further connected to the lamp driver 5, and the master control MCU1 is connected to the lamp driver 5 through I2C or SPI interface.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A TFT and LED integrated digital screen is characterized in that: the LED digital screen comprises a main control MCU (1), an LED digital screen (2) and a TFT screen (3), wherein the main control MCU (1) is respectively connected with the LED digital screen (2) and the TFT screen (3), and the single main control MCU (1) drives and controls the LED digital screen (2) and the TFT screen (3) simultaneously.
2. The TFT and LED integrated digital screen according to claim 1, wherein: the main control MCU (1) adopts a dual-core controller, a dual-core controller is connected with the TFT screen (3) at a high speed and is used for controlling the display of the TFT screen (3), and the other single core is connected with the LED digital screen (2) and is used for controlling the display of the LED digital screen (2).
3. The TFT and LED integrated digital screen according to claim 2, wherein: the main control MCU (1) is connected with the TFT screen (3) through a QSPI interface.
4. The TFT and LED integrated digital screen according to claim 1, wherein: the master control MCU (1) is also connected with a sensor (4), and the master control MCU (1) and the lamp driver (5) are connected through I2C. SPI or UART interface connections.
5. The TFT and LED integrated digital screen according to claim 4, wherein: the sensor (4) is selected according to the type of the household appliance and comprises a temperature sensor, a water level sensor, a turbidity sensor or a door state sensor.
6. The TFT and LED integrated digital screen according to claim 1, wherein: the master control MCU (1) is also connected with the lamp driver (5), and the master control MCU (1) and the lamp driver (5) are connected through I2C or SPI interface connection.
7. The TFT and LED integrated digital screen according to claim 1, wherein: the TFT screen (3) and the LED digital screen (2) are arranged side by side, or the LED digital screen (2) is arranged on two sides of the TFT screen (3), and the PCB (6) is arranged below the TFT screen (3) and the LED digital screen (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654066.4U CN215182856U (en) | 2021-07-20 | 2021-07-20 | TFT and LED integrated digital screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654066.4U CN215182856U (en) | 2021-07-20 | 2021-07-20 | TFT and LED integrated digital screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215182856U true CN215182856U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121654066.4U Active CN215182856U (en) | 2021-07-20 | 2021-07-20 | TFT and LED integrated digital screen |
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| CN (1) | CN215182856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927069A (en) * | 2022-04-12 | 2022-08-19 | 佛山市顺德区四季阳光电子科技有限公司 | LED digital liquid crystal integrated screen |
| CN117496866A (en) * | 2023-10-27 | 2024-02-02 | 广东美创希科技有限公司 | Thin film transistor TFT screen driving system, method and display device |
-
2021
- 2021-07-20 CN CN202121654066.4U patent/CN215182856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927069A (en) * | 2022-04-12 | 2022-08-19 | 佛山市顺德区四季阳光电子科技有限公司 | LED digital liquid crystal integrated screen |
| CN117496866A (en) * | 2023-10-27 | 2024-02-02 | 广东美创希科技有限公司 | Thin film transistor TFT screen driving system, method and display device |
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