Adjustable Lcd Panel Positive Power Supply; Software Adjustable Lcd Backlight Intensity Support Using Pwm; Lcd Panel Support; Lcd Connector - Epson S5U13A05B00C User Manual

6.5 Adjustable LCD Panel Positive Power Supply

Most color passive LCD panels and most single monochrome 640x480 passive LCD panels
require a positive power supply to provide between +23V and +40V (I
power supply (VDDH) has been provided on the S5U13A05B00C board. VDDH can be
adjusted using R14 to provide an output voltage from +23V to +40V, and is
enabled/disabled using the S1D13A05 general purpose signal, GPO0 (active high).
Note

6.6 Software Adjustable LCD Backlight Intensity Support Using PWM

The S1D13A05 provides Pulse Width Modulation output on PWMOUT. PWMOUT can be
used to control LCD panels which support PWM control of the backlight inverter. The
PWMOUT signal is provided on LCD Connector H1.

6.7 LCD Panel Support

The S1D13A05 directly supports:
• Single-panel, single drive passive displays.
• Active Matrix TFT interface.
• Direct support for 18-bit Sharp HR-TFT LCD panel.
• Direct support for 18-bit Casio TFT LCD panel.
• Direct support for 18-bit TFT Type 2 LCD panel.
• Direct support for 18-bit TFT Type 3 LCD panel.
• Direct support for 18-bit TFT Type 4 (Epson ND-TFD) LCD panel.
All the necessary signals are provided on the 40-pin LCD Connector H1, 16-pin Extended
LCD Connector H2, and the 26-pin TFT Type 3 Extended LCD Connector H3. For detailed
connection information, see Section 5, "LCD Interface Pin Mapping" on page 16.

6.7.1 LCD Connector

The LCD Connector H1 provides all LCD panel signals required for Active Matrix TFT
and Passive LCD panels. These signals are buffered to either a 3.3V level or a 5.0V level
depending on the setting of JP3. See Table 3-2: "Jumper Summary" on page 9.
S5U13A05B00C Rev 1.0 Evaluation Board
Rev. 1.1
All manuals and user guides at all-guides.com
When manually adjusting the voltage, set the potentiometer according to the panel's
specific power requirements before connecting the panel.
• 4/8-bit monochrome interface.
• 4/8/16-bit color interface.
• 9/12/18-bit interface.
Seiko Epson Corporation
Technical Description
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