Title:
ＳＰＩベースのヘッドアップディスプレイバックライトの制御方法
Document Type and Number:
Japanese Patent JP6574067
Kind Code:
B2
Abstract:
An SPI-based HUD backlight control method, comprising: the motor vehicle controller using a frequency of a video source signal of the HUD as a backlight value calculation frequency, and calculating backlight values at this frequency;
the motor vehicle controller placing multiple backlight values obtained by calculation into a backlight setting command, and transmitting same to the LED controller via an SPI bus; after obtaining the backlight setting command, the LED controller sequentially applying one backlight value in the backlight setting command each time a frame synchronization signal is obtained. The method reduces the SPI bus load, so that the smoothness of backlight variation is increased, thereby ameliorating display flicker.
Inventors:
Sichang
Application Number:
JP2018540747A
Publication Date:
September 11, 2019
Filing Date:
February 06, 2017
Export Citation:
Assignee:
Continental Automotive GmbH
International Classes:
G09G3/34; G09G3/20; H04N5/74; H05B44/00
Domestic Patent References:
| JP20164121A | ||||
| JP2016006496A | ||||
| JP2015133251A | ||||
| JP201388526A | ||||
| JP2007535709A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima