NL6448BC26-01 Просмотр технического описания (PDF) - NEC => Renesas Technology

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NL6448BC26-01

DOD-PD-0734 (2nd edition)

NEC => Renesas Technology 

65PWB31

2.6 LUMINANCE CONTROL

Method

• Adjustment

Adjustment and luminance ratio

The variable resistor (R) for luminance control should be 10kΩ ±5%, B curve, 1/10W.

Minimum point of the resistor is the minimum luminance. Also maximum point of the resistor

is the maximum luminance.

Resistor control

BRTH

R

BRTL

• Luminance ratio

Resistance

0Ω

10 kΩ

Luminance ratio

30% (min.) Note1

100% (max.)

Voltage control

• Adjustment

Voltage control method works, when BRTL terminal is 0V and BRTH voltage is input between

BRTL and BRTH terminal. This control method can carry out continuation adjustment of

luminance. Luminance is maximum when BRTH terminal is Open.

Less than 0.5V causes backlight off.

Except NL6448AC20-06

Between the terminals of BRTL and BRTH

Less than 0.5V

Backlight off

0.5V to 1.5V

Unstable operations such as flicker may occur.

Luminance

1.5V

control range

2.3V

More than 2.5V

Luminance

ratio

Don't use.

IC will be damaged.

30% (min.) Note1

100% (max.)

Note1: These data are the target values.

3. RELIABILITY TEST

This test is in accordance with the adaptable LCD module. Refer to Reliability Test of the LCD

module.

DATA SHEET DOD-PD-0734 (2nd edition)

7

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