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3.5" 320x240 Anti-Glare TFT LCD Module Wide Temperature - VXT350HQS-01X-W

The VXT350HQS-01X-W is a 3.5-inch TFT LCD module with 320x240 QVGA resolution and an anti-glare top polarizer — the only module in our range that specifies one. Combined with all-direction viewing and no grayscale inversion, it stays readable wherever the operator stands and wherever the light comes from, without spending brightness or backlight life on the problem. Rated -30 to +85°C, with 24-bit RGB for video and a separate SPI channel for configuration.

Model:VXT350HQS-01X-W(wide temperature high brightness)

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Product Description

The Anti-Glare Polarizer: Reflections Removed, Not Outshouted

Most display modules leave the factory with a glossy top polarizer. Under a bright light that surface behaves like a mirror, and what the operator sees is not the screen but the ceiling lamp, the window behind them, or their own reflection. The usual reflex is to specify more brightness.

That works, but it is the expensive way round the problem.

Approach	What it does	What it costs	Where it fails
Anti-glare polarizer (this module)	Breaks specular reflection into diffuse scatter	Nothing — no power, no heat, no life penalty	Adds a very slight haze at close range
Increase brightness	Outshines the reflection	More current, more heat, shorter backlight life	Direct sun — unwinnable
Add an external AR film	Reduces reflection	Extra part, extra lamination step, extra cost	Film can delaminate over time
Mechanical hood or shade	Blocks the light source	Enclosure depth, tooling, weight	Only works from fixed angles

The anti-glare treatment is built into the polarizer itself, so there is no additional part, no lamination step and nothing to delaminate. It does not consume power, so it does not add heat to a sealed enclosure, and it does not shorten the backlight. It simply stops the front surface from behaving like a mirror.

The honest trade is that a matte surface adds a very slight haze, which costs a little perceived sharpness when you hold the display very close. For a 3.5-inch panel read at arm's length on a bench, in a vehicle, or on a machine, that is a good trade. If your product is a close-viewing optical instrument, ask us about the glossy version instead.

Two more ratings that make it work

Rating on this datasheet	Value	What it means in use
Recommended viewing direction	All o'clock
Grayscale inversion direction	None (–)	Tones do not reverse at oblique angles, as they do on many TN panels
Top polarizer type	Anti-glare	Reflections scattered rather than mirrored

Those three together are what "readable from anywhere" actually consists of. Any one of them alone is a specification; all three together mean the operator does not have to move.

Rated -30°C to +85°C

Operating range is -30°C to +85°C, among the widest in our range and ten degrees better than a typical -20 to +70°C panel at both ends. In practice the rating removes hardware rather than just surviving conditions:

No fan or vent for a sealed enclosure that gets hot in summer.
No heater for equipment shipped to cold climates.
One part for all markets rather than a temperate and a cold-climate variant.
Fewer things to fail later — a fan and a heater are two more components with bearings, filters and contacts.