1. General Description
The specification is a transmissive type color active matrix liquid crystal display (LCD) which uses amorphous thin film transistor (TFT) as switching devices. This product is composed of a TFT-LCD panel, driver ICsand a backlight unit.
2. Module Parameter
Features | Details | Unit |
Display Size(Diagonal) | 3.5” | |
LCD type | IPS TFT | |
Display Mode | Transmissive/Normally black | |
Resolution | 640RGB x480 | Pixels |
View Direction | Full viewing | Best Image |
Module Outline | 78.15(H) x65(V) x 2.7(T) (Note1 ) | mm |
Active Area | 70.656(H) x52.992(V) | mm |
Pixel Pich | 110.4(H) x110.4(V) | um |
Pixel Arrangement | RGBStripe | |
Polarizer SurfaceTreatment | Anti-Glare | |
Display Colors | 16M | |
Interface | 24-bitRGB interface | |
Driver IC | HX8664B + HX8264D | - |
With or Without Touch Panel | Without | |
Operating Temperature | -20～70 | ºC |
Storage Temperature | -30～80 | ºC |
Weight | TBD | g |
Note 1: Exclusive hooks, posts , FFC/FPC tail etc.
3. Absolute Maximum Ratings
VSS=0V, Ta=25ºC
Item | Symbol | Min. | Max. | Unit |
Supply Voltage | DVDD | -0.5 | 3.96 | V |
AVDD | -0.5 | 14.85 | V | |
VGH | -0.3 | 42 | V | |
VGL | VGH-42 | 0.3 | V | |
Storage temperature | TSTG | -30 | +80 | ºC |
Operating temperature | TOP | -20 | +70 | ºC |
Note 1: If Ta below 50ºC, the maximal humidity is 90%RH, if Ta over 50ºC, absolute humidity should be less than 60%RH.
Note 2: The response time will be extremely slow when the operating temperature is around -10℃, and the back ground will become darker at high temperature operating.
4. DC Characteristics
Item | Symbol | Min. | Typ. | Max. | Unit |
Supply Voltage | DVDD | 2.7 | 3.3 | 3.6 | V |
AVDD | - | TBD | - | V | |
VGH | - | TBD | - | V | |
VGL | - | TBD | - | V | |
VCOM | - | TBD | - | V | |
Low input voltage | VIL | 0 | - | 0.3*DVDD | V |
High input voltage | VIH | 0.7*DVDD | - | DVDD | V |
Low output voltage | VIL | 0 | - | VSS+0.4 | V |
High output voltage | VIH | DVDD-0.4 | - | - | V |
Note: VCOM is only a reference value. It must be optimized according to each LCM. Please use VR.
5. Backlight Characteristic
5.1. BacklightCharacteristics
Item | Symbol | Condition | Min | Typ | Max | Unit |
Forward Voltage | VF | Ta=25ºC,IF=20mA/LED | 14 | 16 | 17 | V |
Forward Current | IF | Ta=25ºC, VF=3.2V/LED | - | 40 | - | mA |
Power dissipation | PD | - | 640 | - | mW | |
Uniformity | Avg | - | 80 | - | % | |
LED working life(25℃) | - | - | 30000 | - | Hrs | |
Drive method | Constant current | |||||
LEDConfiguration | 10 White LEDs( 5 LEDsin stringand 2groups in parallel) | |||||