Static Electricity Be sure that you are grounded when handling displays.
Note 1: All the above voltages are on the basis of “GND=0V”.
Note 2: When this module is used beyond the above absolute maximum ratings, permanent
damage to the module may occur. Also for normal operations it’s desirable to use
this module under the conditions according to Section 3.2 “Electrical
Characteristics”. If this module is used beyond these conditions the module may
malfunction and the reliability could deteriorate.
3.2 ELECTRICAL CHARACTERISTICS
Characteristics Symbol Conditions Min Typ Max Unit
Supply Voltage V
Supply Voltage x I/O pins V
Driver Supply Voltage V
High Level Input V
Low Level Input V
High Level Output V
Low Level Output V
DD
DDIO
CC
IH
IL
OH
OL
VDD Current IDD
2.6 2.8 3.3 V
1.6 2.8 3.3 V
Note 3 - 13 - V
0
-
Note 1,2 -
Note 1 -
0.8xV
DD
VDD-0.4
2.5 3.5
16 19
V
-
-
-
-
DDIO
0.4V
-
0.4V
V
V
mA
mA
VCC Current ICC
Note 2 -
27 32
mA
Note 1 VDD = 2.8V, VCC = 13V, Software initial setting follow chapter 5.4, 50% Display area
turned on.
Note 2 V
MCU Interface Selection: PS and CPU
Pins connected to MCU interface: D17~D9, RS, CSB, RDB, WRB, RESETB,
ENABLE, DOTCLK, HSYNC and VSYNC
When RGB mode is used, D[17:12], ENABLE, DOTCLK, HSYNC and VSYNC
Should follow the 6-bit RGB interface instruction. Otherwise these four inputs
ENABLE, DOTCLK, HSYNC and VSYNC should be tied to VDDIO Level.
Please refer to the Technical Manual for the SEPS525F
5.2 POWER UP/DOWN SEQUENCE
To protect panel and extend the panel lifetime, the driver IC power up/down routine should
include a delay period between high voltage and low voltage power sources during turn
on/off. It gives the panel enough time to complete the action of charge and discharge
before/after the operation.
5.2.1 POWER UP SEQUENCE
V
1. Power up V
DD & VDD IO
2. Send Display off command V
3. Clear Screen
4. Power up V
5. Delay 100ms (When VDD & V
DDH
is stable) V
DDIO
6. Send Display on command Ground
DD,
, V
DDH
DD
DDIO
ON V
ONDisplay On
DDH
5.2.2 POWER DOWN SEQUENCE
Display off V
1. Send Display off command
2. Power down V
V
DDH
DDH
3. Delay 100ms
(When V
completely discharges) V
4. Power down V
reach 0 and panel is
DDH
DD & VDDIO
DD
Ground
DDH
off V
5.3 RESET CIRCUIT
When RESETB input is low, the chip is initialized with the following status:
Major No unmelted solder paste should be present on PCB
PCB
Critical Cold solder joints, missing solder connections, or oxidation are not allowed
Minor No residue or solder balls on PCB are allowed
Critical
Minor Tray
Purchaser should supply Densitron with detailed data of non-conforming sample.
After accepting it, Densitron should complete the analysis in two weeks from receiving the
sample.
If the analysis cannot be completed on time, Densitron must inform the purchaser.
7.3.2 Handling of non-conforming displays
If any non-conforming displays are found during customer acceptance inspection which
Densitron is clearly responsible for, return them to Densitron.
Both Densitron and customer should analyse the reason and discuss the handling of nonconforming displays when the reason is not clear.
Equally, both sides should discuss and come to agreement for issues pertaining to
modification of Densitron quality assurance standard.
Test Item Test Condition Evaluation and assessment
High Temperature Operation 70°C±2, 240 hours
Low Temperature Operation -30°C±2, 240 hours
High Temperature Storage 80°C±2, 240 hours
Low Temperature Storage -40°C±2, 240 hours
High Temperature & High
Humidity Storage(Operation)
60°C±2, 90%RH, 120 hours
24 cycle of
Thermal Shock
-40°C 1 Hour,
85°C 1 Hour
No abnormalities in function
and appearance
No abnormalities in function
and appearance
No abnormalities in function
and appearance
No abnormalities in function
and appearance
No abnormalities in function
and appearance
No abnormalities in function
and appearance
• The brightness should be greater than 50% of the initial brightness.
• The samples used for above tests do not include polarizer.
• No moisture condensation is observed during tests.
8.1.1 FAILURE CHECK STANDARD
After the completion of the described reliability test, the samples were left at room
temperature for 2 hrs prior to conducting the failure teat at 23±5 °C; 55±15% RH
8.2 LIFE TIME
Item Description
Function, performance, appearance, etc. shall be free from remarkable deterioration
more than 10,000 hours under 100 CD/m² brightness and storage conditions of room
1
temperature (25±10 °C), normal humidity (45±20% RH), and in area not exposed to
direct sunlight.
2 End of lifetime is specified as 50% of initial brightness.
If the panel breaks, be careful not to get the organic substance in your mouth or in your eyes.
If the organic substance touches your skin or clothes, wash it off immediately using soap and plenty of
water.
Mounting and Design
Place a transparent plate (e.g. acrylic, polycarbonate or glass) on the display surface to protect the
display from external pressure. Leave a small gap between the transparent plate and the display
surface.
Design the system so that no input signal is given unless the power supply voltage is applied.
Caution during OLED cleaning
Lightly wipe the display surface with a soft cloth soaked with Isopropyl alcohol, Ethyl alcohol or
Trichlorotriflorothane.
Do not wipe the display surface with dry or hard materials that will damage the polariser surface.
Do not use aromatic solvents (toluene and xylene), or ketonic solvents (ketone and acetone).
Caution against static charge
As the display uses C-MOS LSI drivers, connect any unused input terminal to V
input any signals before power is turned on.
Also, ground your body, work/assembly table and assembly equipment to protect against static
electricity.
Packaging
Displays use OLED elements, and must be treated as such. Avoid strong shock and drop from a
height.
To prevent displays from degradation, do not operate or store them exposed directly to sunshine or
high temperature/humidity.
Caution during operation
It is indispensable to drive the display within the specified voltage limit since excessive voltage
shortens its life.
Other Precautions
When a display module is operated for a long of time with fixed pattern may remain as an after image
or slight contrast deviation may occur.
Nonetheless, if the operation is interrupted and left unused for a while, normal state can be restored.
Also, there will be no problem in the reliability of the module.
Storage
Store the display in a dark place where the temperature is 25°C ± 10°C and the humidity below
50%RH.
Store the display in a clean environment, free from dust, organic solvents and corrosive gases.
Do not crash, shake or jolt the display (including accessories).