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4.2inch e-Paper (B) 数据手册(4.2inch-e-paper-b-specification).pdf
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Product Specifications
Customer
Standard
Description
Model Name
Date
Revision
4.2” E-PAPER DISPLAY
4.2inch e-Paper (B)
2020/11/01
1.0
10F, International Science & Technology Building, Fuhong Rd, Futian District,
Shenzhen, China
Email: sales@waveshare.com
Website: www.waveshare.com
4.2inch e-Paper (B)1/45
Table of Contents
1. General Description....................................................
4
1.1 Overview............................................................
4
1.2 Feature ..............................................................
4
1.3 Mechanical Specification........................................
4
1.4 Mechanical Drawing of EPD module .......................
5
1.5 Input/Output Terminals........................................
6
1.6 Reference Circuit ................................................
8
2. Environmental............................................................
9
2.1 Handling, Safety and Environmental Requirements...
9
2.2 Reliability test.....................................................
11
3. Electrical Characteristics .............................................
12
3.1 Absolute maximum rating.....................................
12
3.2 DC Characteristics..............................................
12
3.3 AC Characteristics ..............................................
13
3.4 Power Consumption..............................................
15
4. Command Table.........................................................
16
5. Command Description.................................................
19
6. Temperature Range.................................................... 38
7. Optical characteristics.................................................
40
7.1 Specifications ....................................................
40
7.2 Definition of contrast ratio...................................
40
7.3 Reflection Ratio..................................................
41
8. Point and line standard...............................................
42
9. Packing.....................................................................
44
10. Precautions ..............................................................
45
4.2inch e-Paper (B)2/45
Version
1.0
Content
New release
Date
Producer
2020/11/01
4.2inch e-Paper (B)3/45
1. General Description
1.1 Overview
This display is an Active Matrix Electrophoretic Display (AMEPD), with interface and a
reference system design. The4.2” active area contains400×300 pixels, and has 1-bit B/
W/R full display capabilities. An integrated circuit contains gate buffer, source buffer,
interface, timing control logic, oscillator, DC-DC, SRAM, LUT, VCOM and border are
supplied with each panel.
1.2 Features
● 400×300 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
● 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 sensor12C / built-in
temperature sensor
1.3 Mechanical Specifications
Parameter
Screen Size
Specifications
4.2
Display Resolution
400(H)×300(V)
Active Area
Pixel Pitch
Pixel Configuration
84.8(H)×63.6 (V)
0.212×0.212
Square
Outline Dimension 91.00(H)× 77.00(V) × 1.25(D)
Weight
15±0.2
Unit
Inch
Pixel
mm
mm
mm
g
Remark
Dpi:119
4.2inch e-Paper (B)4/45
1.4 Mechanical Drawing of EPD module
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4.2inch e-Paper (B)5/45
1.5 Input/Output Terminals
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Single
NC
GDR
RESE
NC
VDHR
TSCL
TSDA
BS
BUSY_N
RST_N
DC
CSB
SCL
SDA
VDDIO
VCI
GND
VDD
VPP
VDH(VSH)
VGH
VDL(VSL)
VGL
VCOM
Description
Remark
No connection and do not connect with other NC pins
Keep Open
N-Channel MOSFET Gate Drive Control
Current Sense Input for the Control Loop
No connection and do not connect with other NC pins
Keep Open
Positive Source driving voltage
I2C Interface to digital temperature sensor Clock pin
I2C Interface to digital temperature sensor Date pin
Note 1.5-5
Note 1.5-4
Note 1.5-3
Note 1.5-2
Note 1.5-1
Bus selection pin
Busy state output pin
Reset
Data /Command control pin
Chip Select input pin
serial clock pin (SPI)
serial data pin (SPI)
Power for interface logic pins
Power Supply pin for the chip
Ground
Core logic power pin
Power Supply for OTP Programming
Positive source driver Voltage
Positive Gate driving voltage
Negative Source driving voltage
Negative Gate voltage.
VCOM driving voltage
4.2inch e-Paper (B)6/45
Note 1.5-1: This pin (CSB) is the chip select input connecting to the MCU. The
chip is enabled for MCU communication: only when CSB is pulled LOW.
Note 1.5-2: This pin (DC) is Data/Command control pin connecting to the MCU.
When the pin is pulled HIGH, the data will be interpreted as data. When the pin
is pulled LOW, the data will be interpreted as command.
Note 1.5-3: This pin (RST_N) is reset signal input. The Reset is active low.
Note 1.5-4: This pin (BUSY_N) is Busy state output pin. When Busy_N is Low
the operation of chip should not be interrupted and any commands should not
be issued to the module. The driver IC will put Busy_N pin Low when the driver
IC is working such as:
- Outputting display waveform; or
- Communicating with digital temperature sensor
Note 1.5-5: This pin (BS) is for 3-line SPI or 4-line SPI selection. When it is
“Low”, 4-line SPI is selected. When it is “High”, 3-line SPI (9 bits SPI) is
selected.
4.2inch e-Paper (B)7/45
1.6 Reference Circuit
4.2inch e-Paper (B)8/45
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