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High-definition multimedia interface suitable for vehicle and its application

A multimedia interface, high-definition technology, applied in the field of vehicle electronic systems and vehicles, high-definition multimedia interface receivers, high-definition multimedia interface transmitters, can solve the problems of high price, occupation, unfavorable promotion and application, etc. Stable performance, simple structure, and the effect of self-adaptive adjustment

Active Publication Date: 2019-03-08
安徽奇点智能新能源汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the process of realizing the present invention, the inventor found that: for the above method 1, because the traditional HDMI cannot fully meet the current control requirements for vehicle display devices, it is usually necessary to add additional control signal lines and corresponding peripheral circuits, so that not only It will take up valuable PCB (Printed circuit board, printed circuit board) area, and it will also increase the structural complexity of the vehicle display device, and increase the implementation cost of the vehicle display device; The number of chips is small and the price is high, so that the cost of the vehicle display device is relatively high; in addition, due to the differences in the SERDES protocols supported by the SERDES chips of different semiconductor manufacturers, there are differences between the vehicle display device and the vehicle control device. The problem of matching is not conducive to the promotion and application

Method used

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  • High-definition multimedia interface suitable for vehicle and its application
  • High-definition multimedia interface suitable for vehicle and its application
  • High-definition multimedia interface suitable for vehicle and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: A high-definition multimedia interface suitable for vehicles.

[0051] The high-definition multimedia interface suitable for vehicles in this embodiment (hereinafter referred to as HDMI) is a kind of HDMI that supports a new interface specification, that is, this embodiment can make HDMI transmit information based on a new interface specification. It can meet the current control requirements for vehicle-mounted display devices.

[0052] The structure of the HDMI applicable to the vehicle in this embodiment is as follows: figure 1 shown.

[0053] figure 1 Among them, the HDMI in this embodiment can be set in an HDMI transmitter or an HDMI receiver; and the HDMI mainly includes: a video data transmission unit 100 and a backlight brightness control unit 110 . The HDMI of this embodiment can also optionally include: a backlight enabling unit 120, a touch control unit 130, a power control unit 140, and a reset control unit 150 according to actual needs; wher...

Embodiment 2

[0089] Embodiment 2: A high-definition multimedia interface transmitter suitable for vehicles.

[0090] The HDMI transmitter 400 of this embodiment is usually arranged at a signal processing unit (such as a CPU or a single-chip microcomputer or a microprocessor, etc.) motherboard, etc.). The structure of the HDMI transmitter 400 is as follows Figure 4 shown.

[0091] Figure 4 Among them, the HDMI transmitter 400 is connected to the signal processing unit on the one hand, and on the other hand can be remotely connected to the display module through the HDMI cable (it can be considered that the HDMI transmitter 400 is remotely connected to the display module through the HDMI cable and the HDMI receiver 500 ), and the HDMI transmitter 400 mainly includes: a high-definition multimedia interface 401 and peripheral circuits of the high-definition multimedia interface 401 ( Figure 4 not shown), and the peripheral circuit of the high-definition multimedia interface 401 in this ...

Embodiment 3

[0093] Embodiment 3: A high-definition multimedia interface receiver suitable for vehicles.

[0094]The HDMI receiver 500 of this embodiment is usually arranged at the display module (such as including a touch screen and a driving circuit board, etc.) in the vehicle-mounted electronic system. Such as the driver circuit board). The HDMI receiver 500 is structured as Figure 5 shown.

[0095] Figure 5 Among them, the HDMI receiver 500 is connected to the display module on the one hand, and on the other hand can be remotely connected to the signal processing unit through the HDMI cable and the HDMI transmitter 400 (it can be considered that the HDMI receiver 500 is connected to the signal processing unit through the HDMI cable and the HDMI transmitter 400 The processing unit is remotely connected), and the HDMI receiver 500 mainly includes: a high-definition multimedia interface 501 suitable for a vehicle and peripheral circuits of the high-definition multimedia interface 501...

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Abstract

The invention discloses a vehicle-mounted high-definition multimedia interface and application thereof. The vehicle-mounted high-definition multimedia interface comprises a video data transfer unit and a backlight brightness control unit, wherein the video data transfer unit is connected with a high-definition multimedia interface wire and is used for receiving / sending data through the high-definition multimedia interface wire to make the display module show corresponding images according to the video data; the backlight brightness control unit is connected with the high-definition multimedia interface wire and is used for receiving / sending backlight brightness control signals through the high-definition multimedia interface wire to make the display module control the brightness of a display screen according to the backlight brightness control signals. The technical scheme has the advantages of being simple in structure, stable in interface performance, free of additional printed circuit board areas, low in cost and suitable for popularization and application, and the modular design requirement of the display module is met.

Description

technical field [0001] The invention relates to vehicle-mounted electronic equipment technology, in particular to a vehicle-mounted high-definition multimedia interface, a vehicle-mounted high-definition multimedia interface transmitter, a vehicle-mounted high-definition multimedia interface receiver, and a vehicle-mounted high-definition multimedia interface Control modules, display modules suitable for vehicles, vehicle electronic systems and vehicles. Background technique [0002] With the improvement of people's living standards, automobiles have become more and more popular, and the number of electronic devices in automobiles has increased day by day. With the development of electronic equipment in automobiles towards platformization, modularization, and intelligence, the display devices configured in automobiles (also called display devices suitable for vehicles or vehicle display devices or display modules suitable for vehicles, etc.) ) also need to develop in the di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00
CPCG09G5/006
Inventor 吴忠梁蒋伟宏刘海明沈海寅
Owner 安徽奇点智能新能源汽车有限公司
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