Enabling The Lcd Panel; Disabling The Lcd Panel - Epson S1D13706 Technical Manual

Embedded memory lcd controller

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6.1 Enabling the LCD Panel

X31B-G-003-03

The HAL function seDisplayEnable(TRUE) can be used to enable the LCD panel. The

function enables the LCD panel using the following steps.

1. Enable the LCD signals - Set Display Blank bit (REG[70h] bit 7) to 0.

2. Wait the required delay time as specified in the LCD panel specification (must be set

using 13706CFG). For further information on 13706CFG, see the 13706CFG User

Manual, document number X31B-B-001-xx.

3. Enable GPO to activate the LCD bias power.

seLcdDisplayEnable is included in the C source file hal_misc.c available on the internet

at www.eea.epson.com.

The HAL function seDisplayEnable(FALSE) can be used to disable the LCD panel. The

function disables the LCD panel using the following steps.

1. Disable the LCD power using GPO.

2. Wait for the LCD bias power supply to discharge (based on the delay time as specified

in the LCD panel specification).

3. Disable the LCD signals - Set Display Blank bit (REG[70h] bit 7) to 1.

4. At this time, the LCD pixel clock source may be disabled (Optional). Note the LUT

must not be accessed if the pixel clock is not active.

seLcdDisplayEnable is included in the C source file hal_misc.c available on the internet

at www.eea.epson.com.

Epson Research and Development

Vancouver Design Center

Programming Notes and Examples

Issue Date: 01/02/23

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