Notes: 
Product Specification 
 
 
OEL Display Module 
Part Name: 
Customer Part ID:  
Wisevision Part ID:   
Ver:    A 
Customer:   
  Approved by 
 
  Approved by 
 
 
 
1. Please contact us. before assigning your product based on this module specification 
2. The information contained herein is presented merely to indicate the characteristics and performance of 
our products.  No responsibility is assumed by us. for any intellectual property 
claims or other problems that may result from application based on the module described herein. 
 
 
 
RReevviisseedd  HHiissttoorryy  
Part Number 
Revision 
Revision Content 
 
 
 
 
 
A 
New 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
Revised on 
20220328 
 
 
 
 
 
 
 
i 
 
 
 
CCoonntteennttss 
RReevviissiioonn  HHiissttoorryy ................................................................................................................................ i 
CCoonntteennttss ..................................................................................................................................... ii~iii 
11..  BBaassiicc  SSppeecciiffiiccaattiioonnss ................................................................................................................ 1~3 
1.1  Display Specifications .................................................................................................................... 1 
1.2  Mechanical Specifications ............................................................................................................... 1 
1.3  Active Area / Memory Mapping & Pixel Construction ........................................................................ 1 
1.4  Mechanical Drawing ....................................................................................................................... 2 
1.5  Pin Definition ................................................................................................................................ 3 
22..  AAbbssoolluuttee  MMaaxxiimmuumm  RRaattiinnggss ........................................................................................................ 4 
33..  Optics & EElleeccttrriiccaall  CChhaarraacctteerriissttiiccss ....................................................................................... 5~11 
3.1  Optics Characteristics .................................................................................................................... 5 
3.2  DC Characteristics ......................................................................................................................... 5 
3.3  AC Characteristics ................................................................................................................... 6~18 
3.3.1  68XX-Series MPU Parallel Interface Characteristics .......................................................... 9~10 
3.3.2  80XX-Series MPU Parallel Interface Characteristics ........................................................ 11~12 
3.3.3  Serial Interface Characteristics (4-wire SPI) .................................................................. 13~14 
3.3.4  Serial Interface Characteristics (3-wire SPI) .................................................................. 15~16 
3.3.5  I2C Interface Characteristics ......................................................................................... 17~18 
44..  FFuunnccttiioonnaall  SSppeecciiffiiccaattiioonn ...................................................................................................... 19~27 
4.1  Commands ................................................................................................................................. 19 
4.2  Power down and Power up Sequence ........................................................................................... 19 
4.2.1  Power up Sequence ........................................................................................................... 19 
4.2.2  Power down Sequence ...................................................................................................... 19 
4.3  Reset Circuit ............................................................................................................................... 19 
4.4  Actual Application Example .................................................................................................... 20~27 
4.4.1  VCC Supplied Externally ............................................................................................... 20~23 
4.4.2  VCC Generated by Internal DC/DC Circuit ..................................................................... 24~27 
55..  RReelliiaabbiilliittyy .................................................................................................................................. 28 
5.1  Contents of Reliability Tests ......................................................................................................... 28 
5.2  Failure Check Standard ................................................................................................................ 28 
66..  OOuuttggooiinngg  QQuuaalliittyy  CCoonnttrrooll  SSppeecciiffiiccaattiioonnss ............................................................................ 29~32 
6.1  Environment Required ................................................................................................................. 29 
6.2  Sampling Plan ............................................................................................................................. 29 
6.3  Criteria & Acceptable Quality Level ......................................................................................... 29~32 
6.3.1  Cosmetic Check (Display Off) in Non-Active Area ........................................................... 29~30 
6.3.2  Cosmetic Check (Display Off) in Active Area ........................................................................ 31 
6.3.3  Pattern Check (Display On) in Active Area ........................................................................... 32 
77..  PPaacckkaaggee  SSppeecciiffiiccaattiioonnss .............................................................................................................. 33 
88..  PPrreeccaauuttiioonnss  WWhheenn  UUssiinngg  TThheessee  OOEELL  DDiissppllaayy  MMoodduulleess ....................................................... 34~36 
8.1  Handling Precautions ................................................................................................................... 34 
8.2  Storage Precautions..................................................................................................................... 35 
8.3  Designing Precautions ................................................................................................................. 35 
8.4  Precautions when disposing of the OEL display modules .......................................................... 35~36 
8.5  Other Precautions........................................................................................................................ 36 
WWaarrrraannttyy ........................................................................................................................................ 36 
NNoottiiccee ............................................................................................................................................. 36 
 
 
ii
 
 
 
11..  BBaassiicc  SSppeecciiffiiccaattiioonnss  
1.1  Display Specifications 
1)  Display Mode: 
2)  Display Color: 
3)  Drive Duty: 
Passive Matrix 
Monochrome (White) 
1/64 Duty 
 
 
 
 
1.2  Mechanical Specifications 
1)  Outline Drawing: 
2)  Number of Pixels: 
3)  Panel Size: 
4)  Active Area: 
5)  Pixel Pitch: 
6)  Pixel Size: 
7)  Weight: 
According to the annexed outline drawing 
128  64 
24.7  16.6  1.3 (mm) 
21.74  11.175 (mm) 
0.17  0.175 (mm) 
0.15  0.15 (mm) 
TBD 
1.3  Active Area / Memory Mapping & Pixel Construction 
 
 
(COM63~COM32)
(SEG127~SEG0)
(COM0~COM31)
SEG & COM Layout
0.17
0.15
5
7
1
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Dots Detail
Scale 10X
                                                                                 
 
 
 
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VCOMH
VCC
IREF
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NC
D1
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D2
D0
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CS#
BS1
RES#
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VDD
VSS
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VBAT
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1.5 
Pin Definition  
Pin Number 
Symbol 
I/O 
Function 
PPoowweerr  SSuuppppllyy  
VDD 
VSS 
P  PPoowweerr  SSuuppppllyy  ffoorr  LLooggiicc  
GGrroouunndd  ooff  LLooggiicc  CCiirrccuuiitt  
This is a voltage supply pin.    It must be connected to external source. 
VCC 
P 
This  is  a  ground  pin.    It  acts  as  a  reference  for  the  logic  pins.    It  must  be 
connected to external ground. 
PPoowweerr  SSuuppppllyy  ffoorr  OOEELL  PPaanneell  
This is the most positive voltage supply pin of the chip.    A stabilization capacitor 
should be connected between  this  pin and VSS when the converter is  used.    It 
must be connected to external source when the converter is not used. 
VLSS 
P  GGrroouunndd  ooff  AAnnaalloogg  CCiirrccuuiitt  
This is an analog ground pin.    It should be connected to VSS externally.  
15 
D/C# 
I 
17 
E/RD# 
I 
 
 
                                                                                 
9 
8 
28 
29 
DDrriivveerr  
26 
27 
IREF 
VCOMH 
DDCC//DDCC  CCoonnvveerrtteerr  
6 
VBAT 
4 / 5 
2 / 3 
C1P / C1N 
C2P / C2N 
IInntteerrffaaccee  
10 
11 
12 
14 
13 
BS0 
BS1 
BS2 
RES# 
CS# 
P 
I 
O 
P 
I 
I 
I 
I 
CCuurrrreenntt  RReeffeerreennccee  ffoorr  BBrriigghhttnneessss  AAddjjuussttmmeenntt  
This  pin  is  segment  current  reference  pin.    A  resistor  should  be  connected 
between this pin and VSS.    Set the current at 12.5A maximum. 
VVoollttaaggee  OOuuttppuutt  HHiigghh  LLeevveell  ffoorr  CCOOMM  SSiiggnnaall 
This  pin  is  the  input  pin  for  the  voltage  output  high  level  for  COM  signals.    A 
capacitor should be connected between this pin and VSS. 
PPoowweerr  SSuuppppllyy  ffoorr  DDCC//DDCC  CCoonnvveerrtteerr  CCiirrccuuiitt  
This is the power supply pin for the internal buffer of the DC/DC voltage converter.   
It must be connected to external source when the converter is used.    It should be 
connected to VDD when the converter is not used. 
PPoossiittiivvee  TTeerrmmiinnaall  ooff  tthhee  FFllyyiinngg  IInnvveerrttiinngg  CCaappaacciittoorr  
NNeeggaattiivvee  TTeerrmmiinnaall  ooff  tthhee  FFllyyiinngg  BBoooosstt  CCaappaacciittoorr  
The charge-pump capacitors are required between the terminals.    They must be 
floated when the converter is not used. 
CCoommmmuunniiccaattiinngg  PPrroottooccooll  SSeelleecctt  
These pins are MCU interface selection input.    See the following table: 
 
I2C 
3-wire SPI 
4-wire SPI 
8-bit 68XX Parallel 
8-bit 80XX Parallel 
 
BS0 
0 
1 
0 
0 
0 
BS1 
1 
0 
0 
0 
1 
BS2 
0 
0 
0 
1 
1 
PPoowweerr  RReesseett  ffoorr  CCoonnttrroolllleerr  aanndd  DDrriivveerr  
This  pin  is  reset  signal  input.    When  the  pin  is  low,  initialization  of  the  chip  is 
executed.    Keep this pin pull high during normal operation. 
CChhiipp  SSeelleecctt  
This pin is the chip select input.    The chip is enabled for MCU communication only 
when CS# is pulled low. 
DDaattaa//CCoommmmaanndd  CCoonnttrrooll  
This pin is Data/Command control pin.    When the pin is pulled high, the input at 
D7~D0 is treated as display data.    When the pin is pulled low, the input at D7~D0 
will be transferred to the command register. 
When the pin is pulled high and serial interface mode is selected, the data at SDIN 
will  be  interpreted  as  data.    When  it  is  pulled  low,  the  data  at  SDIN  will  be 
transferred to the command register.    In I2C mode, this pin acts as SA0 for slave 
address selection. 
For  detail  relationship  to  MCU  interface  signals,  please  refer  to  the  Timing 
Characteristics Diagrams. 
RReeaadd//WWrriittee  EEnnaabbllee  oorr  RReeaadd  
This  pin  is  MCU  interface  input.    When  interfacing  to  a  68XX-series 
microprocessor, this pin will be used as the Enable (E) signal. Read/write operation 
is initiated when this pin is pulled high and the CS# is pulled low. 
When  connecting  to  an  80XX-microprocessor,  this  pin  receives  the  Read (RD#) 
signal.    Data read operation is initiated when this pin is pulled low and CS# is 
pulled low.   
When serial or I2C mode is selected, this pin must be connected to VSS.  
 
 
 
1.5  Pin Definition (Continued) 
Pin Number 
Symbol 
I/O 
IInntteerrffaaccee  ((CCoonnttiinnuueedd))  
16 
R/W# 
I 
18~25 
D0~D7 
I/O 
RReesseerrvvee  
Function 
RReeaadd//WWrriittee  SSeelleecctt  oorr  WWrriittee  
This  pin  is  MCU  interface  input.    When  interfacing  to  a  68XX-series 
microprocessor, this pin will be used as Read/Write (R/W#) selection input.    Pull 
this pin to “High” for read mode and pull it to “Low” for write mode. 
When 80XX interface  mode is  selected, this  pin will  be the Write (WR#)  input.   
Data write operation is initiated when this pin is pulled low and the CS# is pulled 
low. 
When serial or I2C mode is selected, this pin must be connected to VSS. 
HHoosstt  DDaattaa  IInnppuutt//OOuuttppuutt  BBuuss  
These  pins  are  8-bit  bi-directional  data  bus  to  be  connected  to  the 
microprocessor’s data bus.    When serial mode is selected, D1 will be the serial 
data input SDIN and D0 will be the serial clock input SCLK.    When I2C mode is 
selected,  D2  &  D1  should  be  tired  together  and  serve  as  SDAout  &  SDAin  in 
application and D0 is the serial clock input SCL. 
Unused pins must be connected to VSS except for D2 in serial mode. 
7 
N.C. 
1, 30 
N.C. (GND) 
- 
- 
RReesseerrvveedd  PPiinn  
The  N.C.  pin  between  function  pins  are  reserved  for  compatible  and  flexible 
design. 
RReesseerrvveedd  PPiinn  ((SSuuppppoorrttiinngg  PPiinn))  
The supporting pins can reduce the influences from stresses on the function pins.   
These pins must be connected to external ground as the ESD protection circuit. 
  
                                                                                 
 
22..   AAbbssoolluuttee  MMaaxxiimmuumm  RRaattiinnggss  
Parameter 
Symbol 
Supply Voltage for Logic 
Supply Voltage for Display 
Supply Voltage for DC/DC 
Operating Temperature 
Storage Temperature 
Life Time (110 cd/m2) 
Life Time (80 cd/m2) 
Life Time (60 cd/m2) 
VDD 
VCC 
VBAT 
TOP 
TSTG 
 
 
 
Min 
-0.3 
0 
-0.3 
-40 
-40 
10,000 
30,000 
50,000 
Max 
4 
16.5 
4.5 
85 
85 
- 
- 
- 
Unit 
Notes 
V 
V 
V 
C 
C 
hour 
hour 
hour 
1, 2 
1, 2 
1, 2 
 
3 
4 
4 
4 
Note 1: All the above voltages are on the basis of “VSS = 0V”. 
Note 2: When this module is used beyond the above absolute maximum ratings, permanent breakage of the 
module  may  occur.    Also,  for  normal  operations,  it  is  desirable  to  use  this  module  under  the 
conditions  according  to  Section  3.  “Optics  &  Electrical  Characteristics”.    If  this  module  is  used 
beyond these conditions, malfunctioning of the module can occur and the reliability of the module 
may deteriorate. 
Note 3: The  defined  temperature  ranges  do  not  include  the  polarizer.    The  maximum  withstood 
temperature of the polarizer should be 80C. 
Note 4: VCC = 9.0V, Ta = 25°C, 50% Checkerboard. 
Software configuration follows Section 4.4 Initialization. 
End of lifetime is specified as 50% of initial brightness reached.    The average operating lifetime at 
room temperature is estimated by the accelerated operation at high temperature conditions.