TFT | CHARACTER | UWVD | FSC | SEGMENT | CUSTOM | REPLACEMENT TFT Display Module Part Number E28RA-I-CW480-N • Wide Temperature

This is a color active matrix TFT (Thin Film Transistor) LCD (Liquid Crystal Display) that uses amorphous silicon TFT as a switching device. This model is composed of a transmissive type TFT LCD Panel, driver circuit and a backlight unit. The resolution of the 2.8” TFT LCD contains 240(RGB)x320 pixels and can display up to 262k colors. Low Input Voltage: 3.3 V Display Colors: 65k/262k Interface: 8/9/16/18-bit MCU 16/18-bit RGB 3/4-wire Serial

NOTE: MCU interface SET for IM PINS. DISPLAY TYPE: 2.8", TFT-LCD, 65K/262K COLORS DISPLAY MODE: IPS NORMALLY BLACK 6. OPERATING TEMP: -20° C TO 70° C STORAGE TEMP: -30° C TO 80° C NOTE: If used RGB mode must select serial interface! LCDs MADE SIMPLE®

Block Diagram

3. Input Terminal Pin Assignment I: Input, O: Output, P: Power

4. LCD Optical Characteristics 4.1 Optical Specifications

Optical Specification Reference Notes: (1) Definition of Viewing Angle: The viewing angle is the angle at which the contrast ratio is greater than 10. The viewing angles are determined for the horizontal or 3,9 o'clock direction and the vertical or 6,12 o'clock direction with respect to the optical axis which is normal to the LCD surface. (2) Definition of Contrast Ratio (Cr): measured at the center point of panel. The contrast ratio (Cr) measured on a module, is the ratio between the luminance (Lw) in a full white area (R=G=B=1) and the luminance (Ld) in a dark area (R=G=B=0). Lw Cr = Ld (3)...

(5) Definition of Color Gamut: Measuring machine CFT-01. NTSC’s Primaries: R(x,y,Y),G(x,y,Y), B(x,y,Y). FPM520 of Westar Display Technologies, INC., which utilized SR-3 for Chromaticity and BM-5A for other optical characteristics.The color chromaticity shall be calculated from the spectral data measured with all pixels first in red, green, blue and white. Measurements shall be made at the center of the panel. (6) Definition of Optical Measurement Setup: The LCD module should be stabilized at a given temperature for 20 minutes to avoid abrupt temperature change during measuring. In order to stabilize...

5. TFT Electrical Characteristics 5.1 Absolute Maximum Rating (Ta=25 °C, VSS=0V)

The back-light system is edge-lighting type with 6 white LEDs. Note 1: LED lifetime (Hr) can be defined as the time in which it continues to operate under the condition: Ta=25±3 °C, typical IL value indicated in the above table until the brightness becomes less than 50%. Note 2: The “LED lifetime” is defined as the module brightness decrease to 50% original brightness at Ta=25°C and IL=120mA. The LED lifetime could be decreased if operating IL is larger than 120mA. The constant current driving method is suggested. Note 3: Luminance Uniformity of these 9 points is defined as below: Luminance =...

Parallel RGB Interface Characteristics Figure 6.1: Parallel RGB Interface Timing Diagram Signal HSYNC, VSYNC ENABLE Symbol ݑǰݑưݑ̰ݑpݐְݑ Parameter VSYNC, HSYNC Setup Time Enable Setup Time Enable Hold Time DOTCLK High-level Pulse Width DOTCLK Low-level Pulse Width DOTCLK Cycle Time װݑǰݑŰݐڰݐ۰ݑ , ŰݑǰݑŰݐڰݐ۰ݐ DOTCLK Rise/Fall Time DB Data Setup Time DB Data Hold Time

The display operation via the RGB interface is synchronized with the VSYNC, HSYNC and DOTCLK signals. The data can be written only within the specified area with low power consumption by using the window address function. The back porch andfront porch are used to set the RGB interface timing signals. Table 6.2: RGB Interface Timing Table

6.3 Display Serial Interface Characteristics (3-line SPI system) Figure 6.3: Serial Interface 3-SPI Timing Diagram Symbol TCSS TCSH TCSS TSCC TCHW TSCYCW TSHW TSLW TSCYCR TSHR TSLR TSDS TSDH TACC TOH Chip select setup time (write) Chip select hold time (write) Chip select setup time (read) Chip select hold time (read) Chip select ܢH” pulse width Serial clock cycle (write) SCL “H” pulse width (write) SCL “L” width (write) Serial clock cycle (read) SCL “H” pulse width (read) SCL “L” pulse width (read) Data setup time Data hold time Access time Output disable time Table 6.3: 3-line Serial Interface...

Table 6.5: 4-line Serial Interface Timing Characteristics min CL—8pF Note: The rising time and falling time (Tr, Tf) of input signal are specified at 15 ns or less. Logic high and low levels are specified as 30% and 70% of VDDI for Input signals.

8080 Series MCU Parallel Interface Characteristics: 18/16/9/8-bit Bus Figure 6.5: Parallel Interface Timing Characteristics (8080-Series MCU Interface) TAHT TCHW Parameter Address setup time Address hold time (Write/Read) Chip select “H” pulse width TRDHFM TRDLFM Chip select setup time (Write) Chip select setup time (Read ID) Chip select setup time (Read FM) Chip select wait time (Write/Read) Chip select hold time Write cycle Control pulse “H” duration Control pulse “L” duration Read cycle (ID) Control pulse “H” duration (ID) Control pulse “L” duration Read cycle (FM) Control pulse “H” duration...

3. During the resetting period, the display will be blanked (the display is entering blanking sequence, which maximum time is 120ms, when reset starts in Sleep Out mode. The display remains the blank state in Sleep in mode) and then return to Default condition for Hardware Reset. 4. Spike Rejection also applies during a valid reset pulse as shown below: 5. When Reset applied during Sleep In Mode. 6. When Reset applied during Sleep Out Mode. 7. It is necessary to wait 5ms after releasing RESX before sending commands. Also Sleep Out command cannot be sent for 120ms.

7. Cautions and Handling Precautions 7.1 Handling and Operating the Module 1. When the module is assembled, it should be attached to the system firmly. Do not warp or twist the module during assembly work. 2. Protect the module from physical shock or any force. In addition to damage, this may cause improper operation or damage to the module and back-light unit. 3. Note that polarizer is very fragile and could be easily damaged. Do not press or scratch the surface. 4. Do not allow drops of water or chemicals to remain on the display surface. If you have the droplets for a long time, staining and...