These specifications shall apply to LCD SDT-M11329-RP-0 ,which are supplied by BIGBOOK DISPLAY LTD.
Display Type : TN .
Display Mode: Positive .
Polarizer Mode: Reflective.
Driving Method:Vop 2.8V ,
Duty 1/4,Bias 1/3 .
Viewing Direction: 6 o’clock .
Display Color: Display Pixel: Black .(On Stage, Pixel Color)
Back Ground: Gray .(Off stage,Display Color)
Mechanical Specification
Item | Specifications | Unit |
Dimensional Outline | 24.00±0.20(L) X 19.00±0.20(W) X 2.00(MAX) | mm |
Viewing Area | 21.00(L)MIN X 14.00(W)MIN | mm |
PIN Pitch | ———— | mm |
PIN Length | ———— | mm |
Number of PIN | ———— | ---- |
4. Absolute maximum ratings
No. | Item | Characteristic values | Unit | Remark | ||
Min. | Typ. | Max. | ||||
1 | Operating temperature range | -10 | ---- | 55 | °C | |
2 | Storage temperature range | -30 | ---- | 70 | °C | |
3 | AC voltage | ---- | ---- | 15 | V | 1hr |
4 | DC voltage | ---- | ---- | 3.5 | V | 1hr |
5 | Tolerable DC component | ---- | --- | 0.3 | V | |
6 | Tolerable atmospheric pressure | 86 | ---- | 106 | kPa | |
7 | Tolerable vibration | ---- | 0 | 50 | m/s2 |
5. Electro-optical characteristics
Item | Symbol | Measuring | Min | Typ. | Max. | Unit. | Remark | Note | |
condition | ℃ | ||||||||
Recommended Operrating | Vlcd | q=10 F=0 | 25 | 2.6 | 2.8 | 3.0 | V | ||
Operating voltage | Vop | q=10 F=0 | -10 | 2.90 | 3.15 | 3.40 | within +/- 3% | ||
25 | 2.65 | 2.86 | 3.07 | V | within +/- 3% | (1) | |||
55 | 2.49 | 2.69 | 2.88 | within +/- 3% | |||||
Response Time | Tr | q=10 F=0 | -10 | -- | 800 | 1300 | ms | Vop= V | (2) |
25 | -- | 100 | 145 | ||||||
55 | -- | 35 | 50 | ||||||
Tf | q=10 F=0 | -10 | -- | 800 | 1200 | ||||
25 | -- | 60 | 95 | ||||||
55 | -- | 40 | 55 | ||||||
Current consumption (all seg on) | Iop | 25 | -- | 1.2 | 2.5 | μA | (3) | ||
Contrast ratio | Cr | q=10 F=0 | 25 | 3.0 | 5.0 | -- | --- | Vop= V | (4) |
Frame frequency | f | 32 | 64 | 128 | Hz | (1) | |||
Capacitance (all seg ) | C | 25 | --- | 1.5 | 5.5 | nF | (5) | ||
Viewing angle Cr≥2 | q(6H) | F=0° | 25 | -- | 35 | 40 | Deg | (6) | |
F (3H) | q=0-45° | 25 | -- | -30 | -35 | ||||
F (9H) | q=0-45° | 25 | -- | 30 | 35 |
Notes:
(1) Definition of operating voltage and frequency
Vop: Operating voltage
F : Operating frequency
Static drive Dynamic drive (1/a Duty, 1/b Bias )
(2) Definition of response time
Rise time (Ton)
Decay time (Toff)
(3)Definition of current consumption
Io = Ion - Ioff Ion : all Seg on I off : all seg off
Measurement conditions:
1. Operating voltage : Von
2. Measurement temp : 25°C±1°C
3. Operating frequency : 32 Hz ,static drive square wave
Current consumption: Iop (μA) = ( VEEON – VEEOFF ) (V) X 106
103 (Ω)
(4) Definition of contrast ratio
Contrast ratio = Brightness on non-selected segment n
Brightness on selected segment
n = 1 : positive
n = -1: negative
(5) Scheme of capacitance measurement
Measurement conditions:
1. Measurement temp : 25°C ± 1°C
2. Waveform: Sine wave (100Hz)
3. Operating voltage : 1 v
(6)Definition of viewing angle
Measurement conditions:
1. Operating voltage : Vo
2. Operating frequency: typical value individual standard
6.Reliability tests
6.1 Reliability tests
Test item | Conditions | Period | Sampling method |
High storage temperature | 70°C | 240h | n1 = n2 =13 A1 = 0, R1 = 2, A2 = 1, R2 = 2 In accordance with GB2828.1-2003 Quality standards for separative test item |
*High operating temperature | 55°C | 240h | |
Low storage temperature | -30°C | 240h | |
*Low operating temperature | -10°C | 240h | |
**High temperature high humidity (with polarizer) | 40°C/90%RH | 240h | |
Thermal cycles | -30°C/30min, 25°C/5min, 70°C/30min | 10 cycles |
** This item may be replaced by 100°C/100%RH 10hr test in order to save time.
* These test items will be done if required by customer
Every test items shall meet the following criteria. Judgment should be made only after the LCD is exposed to room temperature for 4 hours.
Criteria of judgment:
(1) All segments shall be usually displayed
(2) All segments should not be blurred
(3) Current consumption should not exceed the double of its original value
6.2 Active length of life :Longer than 50,000 hours at room temperature without direct irradiation of sun light ,no obvious inferior affection to the function,
efficiency and appearance.
7.Cosmetic inspection criterion
7.1 Inspecting condition
7.1.1 The LCD should be inspected under 20W×2 or 40W×1 natural light lamp. The distance between the light source and the LCD should be 100cm and the inspector should be at 30cm from the LCD. During the visual inspection of the LCD, the viewing direction should be about 45° from the normal.
7.1.1 During the inspection of transmissive, negative and black mask LCD, a backlight or a reflector at the back side of LCD is required.
7.1.2 All the dimension, including length, height, thickness of LCDs, end sealing size, pins length …etc, must be measured using a caliper with a minimum accuracy of 0.02mm.
7.1.3 The electrical test should be conducted with a specialized testing board and emulator.
7.1.4The reliability test should be conducted with a specialized oven, chiller, boiler, and other environmental test equipment.
7.2 Definition of zone
A area: Active display area (viewing area)
B area: Non-active display area (outside V.A.)