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Custom Segment LCD Display Module 600 cd/m² Low Power Backlight - VX50431-TY036LA

The VX50431-TY036LA is a custom VA type segment LCD display module for products that do not need a TFT. Its white LED backlight runs at 3.0 V and 60 mA — about 0.18 W, four to ten times less than the backlights in our TFT modules — so it runs from a logic rail or a single cell with no boost converter. Brightness is 600 cd/m² with 10:1 contrast. Rated -20 to +70°C and thermal-shock tested to -40 and +85°C.

Model:VX50431-TY036LA

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Product Description

Not Every Product Needs a TFT

A TFT module is the default choice for a lot of projects, often by reflex rather than decision. It is worth checking, because for a large class of products a segment display does the job better and costs less doing it.

Factor	Segment LCD (this module)	TFT module
Backlight power	0.18 W	0.72 to 1.84 W or more
What it shows	Fixed segments, digits, icons, bar graphs	Any image, graphics, video
Host interface	A handful of pins, simple driver or none	24-bit RGB or LVDS, timing, a frame buffer
Controller load	Minimal — often driven straight from the MCU	Needs an LCD controller and external memory
In daylight	A reflective or transflective build reads without backlight at all	Requires high brightness and still struggles
Tooling	One-off glass artwork, then very low unit cost	Standard panel, no tooling
Colour	Monochrome	Full colour
Right for	Meters, appliances, instruments, thermostats, gauges	Graphical UI, images, video, dense data

The decision is usually made by a single question: does the content change shape? If your display shows the same digits, icons and bar graphs for the life of the product, the segments can be drawn into the glass once and you are not paying for pixels you never use. If the content changes layout, needs images, or you expect to revise the interface after launch, a TFT is the correct answer and a segment display is the wrong one.

What you give up is flexibility. What you get back is power, cost, legibility in sunlight and a far simpler interface. For a battery instrument or a high-volume appliance, that is usually the right trade.

80 ms Response: Where It Matters and Where It Does Not

Response time is 80 ms rising and 30 ms falling. Against a TFT, which is typically 14 to 30 ms, that is slow. It is worth being honest about where that shows.

It does not matter for what segment displays mostly do — digits, units, status icons and bar graphs that change a few times a second at most. At 80 ms a value update looks instantaneous to a person.
It does matter if you intend to animate anything, multiplex at high speed, or chase a fast-changing numerical readout. A rapidly counting meter will smear at this speed.

For a thermostat, a utility meter, an appliance cycle indicator or a gauge, 80 ms is invisible. If you want a spinning icon or a live waveform, this is the wrong technology and you should be looking at a TFT instead.

General Information

Item	Value
Model	VX50431-TY036LA
Display Type	Segment LCD (monochrome, custom glass)
Backlight	White LED
Backlight power	approximately 0.18 W
Brightness	600 cd/m² typical — confirm which measurement
Contrast ratio	10:1 typical
Luminance uniformity	70% minimum, 80% typical
Viewing angle	45° at 180°, 40° at 90° and 270°, 25° at 0°
Response time	80 ms rise, 30 ms fall
Operating temperature	-20°C to +70°C
Storage temperature	-30°C to +80°C
Thermal shock	-40°C to +85°C, 30 min each, 10 cycles
Humidity	60°C, 90% RH, 96 hours
Vibration	10–55 Hz, 1.5 mm, 30 minutes per axis, X–Y–Z

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