AUO G057QN01 V2 Datasheet – 5.7-Inch 320×240 Industrial TFT LCD

AUO G057QN01 V2 Datasheet provides the technical specifications for a
5.7-inch industrial TFT LCD module with
QVGA 320 × 240 resolution, 800 cd/m² typical brightness
and a CMOS 6-bit parallel RGB interface. The display provides a
115.2 × 86.4 mm active area, supports 262K colors and is specified for operation from
-30°C to +85°C.

AUO G057QN01 V2 5.7-Inch TFT LCD Overview

The AUO G057QN01 V2 is a 5.7-inch color TFT-LCD developed for industrial display
applications. According to the specification, the module integrates the TFT-LCD panel, driver ICs,
control and power circuitry, and an LED backlight unit with LED driver circuitry.

The display uses a 320 × RGB × 240 QVGA pixel format with an RGB vertical stripe
arrangement and supports 262,144 colors through 6-bit RGB data per color channel.
The panel operates in TN normally-white mode and uses an anti-glare surface treatment
with 3H hardness.

QVGA 320×240 Industrial Display Format

G057QN01 V2 uses the traditional QVGA 320 × 240 resolution, which remains common in
industrial equipment, machine interfaces and legacy embedded systems where compatibility with an existing
parallel RGB controller is more important than high pixel density.

The active display area measures 115.2 mm horizontally by 86.4 mm vertically.
With a 0.36 × 0.36 mm pixel pitch, the panel maintains the native 4:3 display format associated with
QVGA industrial HMIs.

800 cd/m² High-Brightness Optical Performance

One of the most important characteristics of the AUO G057QN01 V2 is its
800 cd/m² typical white luminance. The optical specification lists
600 cd/m² minimum brightness under the specified test conditions with
VLED = 12V and PWM duty at 100%.

The typical contrast ratio is 800:1, with a minimum value of 500:1.
Viewing angles are also specified for the industrial TN panel.

• Brightness: 600 cd/m² minimum, 800 cd/m² typical
• Contrast ratio: 500:1 minimum, 800:1 typical
• Horizontal viewing angle: 80° typical left and right
• Vertical viewing angle: 70° typical upper and lower
• Rise response time: 15 ms typical, 20 ms maximum
• Fall response time: 10 ms typical, 15 ms maximum
• Combined response time: 25 ms typical, 35 ms maximum
• Color gamut: 50%

The datasheet identifies the 12 o’clock direction as the most suitable viewing direction.
Optical performance is specified under controlled measurement conditions at 25°C.

CMOS 6-Bit Parallel RGB Interface

Unlike LVDS-based industrial panels, the G057QN01 V2 uses a
CMOS 6-bit parallel RGB interface. Each red, green and blue channel uses six data bits,
providing 64 grayscale levels per primary color and a total of 262K display colors.

The LCD signal connector provides:

• R0–R5: red data
• G0–G5: green data
• B0–B5: blue data
• DOTCLK: pixel clock
• DE: data enable
• VDD: 3.3V LCD power
• R/L: horizontal scanning direction
• U/D: vertical scanning direction

The LCD connector specified by AUO is the
Starconn 089H33-000100-G2-R, compatible with the connector models listed in the original
specification.

DE-Only Display Timing

The G057QN01 V2 operates in DE mode only. The timing specification defines a
recommended frame rate of approximately 60 Hz.

The active timing area is:

• Horizontal active pixels: 320
• Vertical active lines: 240
• Typical horizontal total: 408 clock cycles
• Typical vertical total: 263 lines
• Typical horizontal blanking: 88 clocks
• Typical vertical blanking: 23 lines

The published DOTCLK table lists a broad operating clock range and should be checked together with the
horizontal and vertical timing requirements when configuring an embedded RGB controller.

3.3V TFT-LCD Power Supply

The TFT-LCD logic section operates from a 3.3V nominal supply, with an allowable range
of 3.0V to 3.6V.

The specification states that display input signals should remain low or in a high-impedance state when
VDD is switched off.

12V LED Backlight with PWM Dimming

The backlight unit uses a separate 12V nominal input and integrates the LED driver
circuit into the module.

The published LED backlight parameters include:

• VLED input: 9V minimum, 12V typical, 20V maximum
• Typical input current: 0.24A
• Typical backlight power: 2.88W
• Maximum backlight inrush current: 1.5A
• PWM dimming frequency: 200 Hz to 30 kHz
• PWM duty cycle: 1% to 100%
• Backlight operating life: 50,000 hours minimum estimated

The datasheet defines backlight operating life as the period until luminance decreases to
approximately 50% of the initial brightness under the stated operating conditions.

Separate LCD and Backlight Connectors

G057QN01 V2 uses separate connectors for the TFT-LCD signals and LED backlight.
The backlight connector is specified as JST SM06B-SRKS-G-TB, compatible with the
listed JST alternatives.

The six backlight pins provide two VLED inputs, two ground connections, PWM dimming and LED on/off
control. This separation simplifies maintenance and allows the system controller to control display logic
and backlight operation independently.

-30°C to +85°C Industrial Temperature Rating

The specification lists both operating and non-operating storage temperature ranges of
-30°C to +85°C. This wide environmental rating is one of the strongest industrial
characteristics of the G057QN01 V2.

The datasheet also specifically notes that only functional operation is guaranteed across the full temperature
range, while optical performance should be evaluated at 25°C. Temperature extremes may
affect luminance and response time.

Industrial Reliability Test Conditions

AUO’s reliability section documents a number of environmental and mechanical tests for this model,
including:

• High-temperature operation: +85°C for 300 hours
• Low-temperature operation: -30°C for 300 hours
• High-temperature storage: +85°C for 300 hours
• Low-temperature storage: -30°C for 300 hours
• Thermal shock: -20°C / +60°C, 100 cycles
• Hot start test: +85°C
• Cold start test: -30°C
• Non-operating shock: 50G, 20 ms half-sine
• Non-operating vibration: 1.5G, 10–200 Hz
• Contact ESD: ±8 kV
• Air ESD: ±15 kV
• Operating altitude test: 14,000 ft for 8 hours
• Non-operating altitude test: 40,000 ft for 24 hours

These documented tests are especially relevant for engineers evaluating the panel for industrial,
transportation, control-system or other equipment exposed to extended environmental stress.

Download the AUO G057QN01 V2 Datasheet

Download the complete AUO G057QN01 V2 Datasheet for detailed information covering the
320 × 240 pixel format, CMOS 6-bit RGB interface, timing requirements, scanning direction, LCD and
backlight connector assignments, 12V LED driver specifications, power sequence, optical performance,
reliability tests and mechanical dimensions.

When evaluating this panel for replacement or new equipment development, confirm the
5.7-inch mechanical size, 320 × 240 native resolution, CMOS parallel RGB interface,
3.3V LCD supply, 12V LED backlight supply and 33-pin LCD connector before finalizing the
controller hardware.