JapanDisplayInc


We develop, design, manufacture, and sell "display" where it is necessary for the interface that deliver a lot of information at an instant and deliver it to the global market. We create interactive spaces that go beyond the expected, elevate everyday lives, and move people's hearts. From bases in major cities in Asia, Europe, and the Americas, we build strong customer relationships by developing products that respond to market needs.

SPI_MIP8

Table of Contents

  1. Outline
  2. Interface Connection Suggestion
  3. Document Links

Outline

Memory In Pixel (MIP) function is equipped in the color reflective LCD. These LCD modules are suitable for a wide variety of IoT products and application, including outdoor sports gears, medical & healthcare devices, remote controllers, and portable devices. JDI's Low power consumption technology contributes to long battery drive devices.

This chapter describes interface specifications with MIP. For detailed specifications, refer to each data sheet.

http://www.j-display.com/english/product/reflective.html

Interface Connection Suggestion

To keep tolerance for signal threshold, please use same power rail voltage for both output device and LCD input (each end of signals). In case you need higher SPI transfer rate, set the power rail voltage higher for both output and input. Below are examples which use CPU as a controller: /media/uploads/STakayama/connection_typical1.jpg

  • I/O Pins

/media/uploads/STakayama/interface_pin.jpg

  • VCOM (EXTMODE,EXTCOMIN)

/media/uploads/STakayama/vcom_detail.jpg

  • Power On/Off Sequence /media/uploads/STakayama/poweronoffsequence.jpg
  • SPI Interface

SCLK frequency : 2MHz(Max.) , SPI mode : 0

  • SPI Command

There are several kinds of modes (commands) to write screen data and command structure as listed below:

  1. SINGLE LINE UPDATE MODE (3BIT-DATA MODE)
  2. MULTIPLE LINES UPDATE MODE (3BIT-DATA MODE)
  3. SINGLE LINE UPDATE MODE (1BIT-DATA MODE)
  4. MULTIPLE LINES UPDATE MODE (1BIT-DATA MODE)
  5. SINGLE LINE UPDATE MODE (4BIT-DATA MODE)
  6. MULTIPLE LINES UPDATE MODE (4BIT-DATA MODE)
  7. NO-UPDATE MODE
  8. ALL CLEAR MODE
  9. DISPLAY BLINKING COLOR MODE
  10. DISPLAY COLOR INVERSION MODE

For detailed specifications, refer to each data sheet.

> SINGLE LINE UPDATE

Any single line can be updated individually as a minimum unit. Below is the command example if customer would like to update 1st line of panel, in 3BIT‐DATA MODE. /media/uploads/STakayama/spi_command-1-.jpg

> MULTIPLE LINES UPDATE

Any continuous lines can be written without re‐writing whole screen data, ex. 149th 153rd lines.

> NO‐UPDATE

Make both M0 and M2 high or low to maintain current screen data with VCOM inversion.

> DISPLAY BLINKING COLOR / DISPLAY COLOR INVERSION

If the application unit would like to attract end users’ attention by blinking/inversion color command is recommended, such as application for special alarm or information signage.

Specification　:　 http://www.j-display.com/english/product/reflective.html

https://os.mbed.com/teams/JapanDisplayInc/wiki/MIP-reflective-color-display

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