Communication mode for vehicle-mounted entertainment host and split type touch screen

Abstract

The invention discloses a communication mode for a vehicle-mounted entertainment host and a split type touch screen. The communication mode involves the entertainment host and the split type touch screen; the entertainment host comprises an MCU (Microprogrammed Control Unit) and a first LVDS (Low Voltage Differential Signaling) conversion chip; the split type touch screen comprises a second LVDS conversion chip which is connected with the first LVDS conversion chip through an LVDS connecting part; signals transmitted between the first LVDS conversion chip and the second LVDS conversion chip include an RGB (Red-Green-Blue) video signal, a video control signal, a screen on-off control signal, a background light regulating signal and a touch signal; the screen on-off control signal, the background light regulating signal and the touch signal are separated in a communication protocol between the first LVDS conversion chip and the second LVDS conversion chip. With the adoption of the communication mode for the vehicle-mounted entertainment host and the split type touch screen, the problem of delayed response due to the synchronizing of touch and the use of an on-off key can be solved, and the problem that the background light cannot be continuously regulated can also be solved.

Description

technical field [0001] The invention belongs to the communication technology of automobiles, and in particular relates to a communication mode between a vehicle-mounted entertainment host and a split touch screen. Background technique [0002] With the continuous changes in the shape of car interiors, the shape of the car's central control area is more varied, and the traditional all-in-one entertainment console can no longer meet the demand. So there is a setting that separates the display screen from the entertainment host. The RGB video signal, video control signal, switch screen control signal, backlight adjustment signal and touch signal between the entertainment host and the display are transmitted through a pair of LVDS conversion chips. However, there are problems that the switch screen cannot respond in time during touch, and the background light cannot be continuously adjusted. Contents of the invention [0003] The purpose of the present invention is to provide...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a communication method between the vehicle-mounted entertainment host and the split touch screen, so as to solve the problem of response delay when the touch screen is separated from the host, and the problem that the background light cannot be adjusted continuously

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