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7.8inch e-Paper 数据手册(7.8inch_e-Paper_Specification).pdf
7.8inch e-Paper
The content of this information is subject to be changed without
notice. Please contact Waveshare or its agent for further information.
Customer’s Confirmation
Customer
Date
By
7.8inch e-Paperhttps://www.waveshare.com
Revision History
Rev.
Issued Date
Revised Contents
1.0 Apr 19, 2018
New
II
7.8inch e-Paperhttps://www.waveshare.com
TECHNICAL SPECIFICATION
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
General Description ......................................................................................................................................... 1
Features............................................................................................................................................................ 1
Mechanical Specifications ............................................................................................................................... 1
Mechanical Drawing of EPD Module ............................................................................................................. 2
Input / Output Interface ................................................................................................................................... 3
Display Module Electrical Characteristics ...................................................................................................... 5
Power Sequence ............................................................................................................................................. 11
Optical Characteristics ................................................................................................................................... 13
Handling, Safety and Environmental Requirements and Remark ................................................................. 15
Border Definition ........................................................................................................................................... 17
Block Diagram ............................................................................................................................................... 18
Packing .......................................................................................................................................................... 19
III
7.8inch e-Paperhttps://www.waveshare.com
General Description
1.
7.8inch e-Paper
has
substrate. It
is a
reflective electrophoretic E Ink
technology
display
module based on active matrix
TFT
7.8” active area
with
1404 x 1872 pixels, the
display
is capable
to display
images
at
2-16
grey levels (1-4 bits) depending on the display
controller and
the
associated waveform
file
it
used.
2.
Features
Carta high
contrast reflective/electrophoretic technology
1404 x 1872 resolution
Ultra wide viewing angle
Ultra low power consumption
Pure reflective mode
Bi-stable
Commercial temperature range
Landscape, portrait mode
3. Mechanical Specifications
Parameter
Screen Size
Specifications
7.8 (3:4)
Display Resolution
1404 (H)×1872 (V)
Active Area
Pixel Pitch
118.638 (H)×158.184 (V)
0.0845 (H)×0.0845 (V)
Pixel Configuration
Square
Remark
Unit
Inch
Pixel
mm
mm
Outline Dimension
127.6(H) * 173.8(V) * 0.78(D) (EPD w/o FPC)
mm
Module Weight
Number of Grey
36.9 ± 5
g
16 Grey Level (monochrome)
Display operating mode
Reflective mode
1
7.8inch e-Paperhttps://www.waveshare.com
4. Mechanical Drawing of EPD Module
2
增加7.8inch e-Paperhttps://www.waveshare.com
5.
Input / Output Interface
5.1 Connector type
P-TWO INDUSTRIES INC 196033-40041-1
5.1.1 Pin assignment
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
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Signal
VGL
NC
VGH
NC
VDD
Mode
CKV
SPV
VSS
VCOM
VDD
VSS
XCL
D0
D1
D2
D3
D4
D5
D6
D7
VSS
D8
D9
D10
D11
D12
D13
D14
D15
XSTL
XLE
XOE
TEST
NC
VPOS
NC
VNEG
NC
Border
Note 1: Please connect to VDD voltage.
Description
Negative power supply gate driver
NO Connection
Positive power supply gate driver
NO Connection
Digital power supply drivers
Output mode selection gate driver
Clock gate driver
Start pulse gate driver
Ground
Common voltage
Digital power supply drivers
Ground
Clock source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Ground
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Data signal source driver
Start pulse source driver
Latch enable source driver
Output enable source driver
E Ink internal test pin (Note 1)
NO Connection
Positive power supply source driver
NO Connection
Negative power supply source driver
NO Connection
Border connection
3
7.8inch e-Paperhttps://www.waveshare.com
5.2 Panel Scan Direction
Gate Scan Direction
G1404
G1
S1
Source
Scan
Direction
S1872
4
AA CENTER4017.8inch e-Paperhttps://www.waveshare.com
6. Display Module Electrical Characteristics
6.1 Absolute Maximum Ratings
Parameter
Symbol
Logic Supply Voltage
Positive Supply Voltage
Negative Supply Voltage
VDD
VPOS
VNEG
Rating
-0.3 to +5
-0.3 to +18
+0.3 to -18
Max .Drive Voltage Range
VPOS - VNEG
36
Supply Voltage
Supply Voltage
Supply Range
Operating Temp. Range
Storage Temperature
VGH
VGL
VGH-VGL
TOTR
TSTG
-0.3 to VGL+50
-25 to +0.3
+10 to +50
0 to +50
-25 to +70
Unit
Remark
V
V
V
V
V
V
V
℃
℃
--
--
--
--
--
--
--
--
--
6.2 Display Module DC Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Signal ground
Logic Voltage supply
Gate Negative supply
Gate Positive supply
Source Negative supply
Source Positive supply
Border supply
Asymmetry source
Common voltage
Panel Power
Standby power panel
VSS
VDD
IVDD
VGL
IGL
VGH
IGH
VNEG
INEG
VPOS
IPOS
VCOM
VAsym
VCOM
ICOM
P
PSTBY
VDD=3.3V
VGL =-20V
VGH = 25V
VNEG = -15V
VPOS = 15V
-
3.0
-
-21
-
24
-
-15.4
-
14.6
-
-
0
3.3
12
-20
2
25
1
-15
2
15
2
Adjusted
VPOS+VNEG
-800
0
-
3.6
15
-19
20
26
5
-14.6
200
15.4
200
-
800
-0.3
-
V
V
mA
V
mA
V
mA
V
mA
V
mA
V
mV
V
mA
mW
mW
-4
-
-
-
Adjusted
0.2
164.6
6574.5
-
0.17
- The maximum power consumption is measured using 85Hz waveform with following pattern transition:
from pattern of repeated 1 consecutive black scan lines followed by 1 consecutive white scan line to that
of repeated 1 consecutive white scan lines followed by 1 consecutive black scan lines (Note 6-1).
- The Typical power consumption is measured using 85Hz waveform with following pattern transition: from
horizontal 4 grey scale pattern to vertical 4 grey scale patterns (Note 6-2).
5
7.8inch e-Paperhttps://www.waveshare.com
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