OKRA OKRA0750RWU790F30 User manual

Specification for 7.5 inch EPD
Model NO. : OKRA0750RWU790F30
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EPD Module User Manual
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Revision History
Version Content Date Producer
2.0 New release 2020/11/13
EPD Module User Manual
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CONTENTS
1. Over View..................................................................................................................... 5
2. Features.........................................................................................................................5
3. Mechanical Specification............................................................................................. 6
4.Mechanical Drawing of EPD Module...........................................................................7
5. Input/output Pin Assignment........................................................................................8
6. Electrical Characteristics..............................................................................................9
6.1 Absolute Maximum Rating.................................................................................. 9
6.2 Panel DC Characteristics....................................................................................10
6.3 Panel AC Characteristics....................................................................................11
6.3.1 MCU Interface Selection...........................................................................11
6.3.2 MCU Serial Interface (4-wire SPI)...........................................................11
6.3.3 MCU Serial Interface (3-wire SPI)...........................................................12
7.Command Table.......................................................................................................... 14
8. Block Diagram............................................................................................................31
9.Typical Application Circuit with SPI Interface...........................................................32
10. Typical Operating Sequence.....................................................................................33
10.1 LUT from OTP Operation Flow.......................................................................33
10.2 OTP Operation Reference Program Code........................................................34
11. Reliability Test..........................................................................................................35
12. Inspection condition................................................................................................. 36
12.1 Environment..................................................................................................... 36
12.2 Illuminance....................................................................................................... 36
12.3 Inspect method..................................................................................................36
12.4 Display area...................................................................................................... 36
EPD Module User Manual
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12.5 Ghosting test method........................................................................................36
12.6 Inspection standard...........................................................................................37
12.6.1 Electric inspection standard.................................................................... 37
12.6.2 Appearance inspection standard..............................................................38
13.Packaging...................................................................................................................40
14. Handling, Safety, and Environment Requirements..................................................41
EPD Module User Manual
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1. Over View
OKRA0750RWU790F30 is an Active Matrix Electrophoretic Display (AM EPD), with
interface and a reference system design. The display is capable to display images at 1-bit white,
black and red full display capabilities. The 7.5 inch active area contains 480×800 pixels. The module
is a TFT-array driving electrophoresis display, with integrated circuits including gate driver, source
driver, MCU interface, timing controller, oscillator, DC-DC, SRAM, LUT, VCOM. Module can be
used in portable electronic devices, such as Electronic Shelf Label (ESL) System.
2. Features
◆480×800 pixels display
◆High contrast High reflectance
◆Ultra wide viewing angle Ultra low power consumption
◆Pure reflective mode
◆Bi-stable display
◆Commercial temperature range
◆Landscape portrait modes
◆Hard-coat antiglare display surface
◆Ultra Low current deep sleep mode
◆On chip display RAM
◆Waveform can stored in On-chip OTP or written by MCU
◆Serial peripheral interface available
◆On-chip oscillator
◆On-chip booster and regulator control for generating VCOM, Gate and Source driving
voltage
◆I2C signal master interface to read external temperature sensor
◆Built-in temperature sensor
EPD Module User Manual
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