Bridge chips sort automotive display bus incompatibilities

Toshiba is addressing incompatible automotive display interfaces with a pair of bridge ICs.

“The number of display panels incorporated into modern vehicles has increased significantly, with infotainment systems often including several different display interface types,” according to the company. “Consequently, some current systems cannot support emerging protocols such as DSI {display serial interface] and eDP [embedded DisplayPort].”

The bridge chips are:

• TC9594XBG supports a parallel input (24bit at 166MHz) and provides a 4-lane x 1 channel MIPI DSI-TX output. Operation is over -40ºC to +105ºC
• TC9595XBG can accept two input types: 4-lane x 1 channel MIPI DSI or MIPI DPI (24bit at 154MHz, and outputs VESA DisplayPort 1.1a. Operation is over -40ºC to +85ºC

Both devices offer WUXGA (1,900 x 1,200 at 24bit) and come in 7mm x 7mm  0.65mm pitch VFBGA80.

“Toshiba has experience in developing MIPI interface bridge ICs for consumer use,” it said. “The new devices add an automotive capability to the line-up, solving interface incompatibility issues, especially in infotainment systems.”

TC9594XBG is sampling now, with samples of TC9595XBG to follow later this year.

The product pages are here

OverviewParallel Port to MIPI® DSISM (TC9594XBG) is a bridge device that converts RGB to DSI. All internal registers can be accessed through I2C or SPI.