TCG121SVLPAANN-AN20 Kyocera 12.1 inch 800x600 SVGA TFT LCD Panel

TCG121SVLPAANN-AN20 Overview

The Kyocera TCG121SVLPAANN-AN20 is a 12.1 inch SVGA module at 800 x 600 with an LVDS input and a 12 V LED backlight rated for 100,000 hours. The viewing cone is symmetrical at 80/80/80/80, which is the practical difference between this suffix and the TTL versions of the same 12.1 inch family.

A 1000:1 contrast ratio and 500 cd/m2 output keep grey-scale graphics, alarm text and process diagrams readable from several angles, so the panel works on a machine that is watched by two operators or viewed from a step to the side. The 9.5 mm depth and 278.3 x 207.5 mm outline match the standard 12.1 inch mounting pattern.

Key Characteristics

• Symmetrical 80/80/80/80 viewing: no weak direction, so the screen stays readable when the operator stands to the left or right of the machine

• 100,000 hour LED life: roughly twice the rating of many 12.1 inch panels, which reduces backlight replacement over a machine lifetime

• 12 V backlight input: the driver is inside the module, so the cabinet needs no separate constant-current board or inverter

• LVDS interface: differential signalling tolerates longer cable runs and is less sensitive to servo noise than a TTL ribbon

• 1000:1 contrast: dark backgrounds with light text, common in HMI themes, stay legible instead of washing into grey

Technical Specifications

Typical Applications

• Machine and line control: 12 inch fronts watched from several positions on a production line

• Process visualisation: trend, alarm and schematic screens on panel PCs

• Building and energy controls: supervisory terminals in plant rooms and switchgear cabinets

• Retrofit of 12.1 inch TTL machines: where a controller with LVDS output is available and the TTL link is being retired

Integration Notes

The backlight runs from a 12 V input with the driver inside the module, so the host only needs to provide the rail and a dimming signal. Confirm the dimming method before wiring: a PWM input driven from a 24 V PLC output needs level shifting, and applying 24 V to the dimming pin damages the driver.

LVDS mapping differs between Kyocera suffixes. Compare the pair order with the controller data sheet rather than assuming that a 12.1 inch panel from the same family will drop in; a reversed pair usually shows as a colour cast or a horizontally shifted image, not as a blank screen.

Quality Inspection

Units are powered at 500 cd/m2 and checked at white, black and three greys for dead pixels, mura and uniformity, then inspected at the LVDS connector and along the front bezel. Each module is photographed with its label visible so the revision can be confirmed against the packing list.

Packing and Shipping

The module stands upright in a foam-lined carton with a protective film on the front, so the 12 inch glass cannot flex under stacking load. Cartons are marked with model, quantity, fragile and this-side-up; we can pack mixed 12.1 inch models together when a service order covers several machines.

FAQ

How does -AN20 differ from the TTL version of the same panel?
The main differences are the LVDS input and the integrated 12 V LED driver. Optically the 12.1 inch family is similar, but a TTL host cannot drive this suffix without a transmitter board, and an LVDS host cannot drive the TTL version.

Is the 100,000 hour figure realistic?
It is the Kyocera rating for this suffix at the specified drive conditions. Lifetime falls if the backlight is run above the rated current or in a cabinet that stays near the +70 degC limit.

Can the backlight be dimmed from a PLC?
Yes, with a level-shifted PWM or an analogue dimming signal as the data sheet allows. Never apply 24 V directly to the dimming input; use a transistor stage or an opto-isolator.

Does it fit where a 12.1 inch panel with a 9.2 mm depth was used?
The outline is 278.3 x 207.5 x 9.5 mm. A 0.3 mm difference is usually absorbed by the bezel gasket, but check the mounting boss height before ordering, because pressure on the front glass is the usual cause of edge mura.

What is included with the module?
The panel, its LVDS tail and the data sheet reference for this suffix. A touch overlay, a controller board and a mounting frame are separate items and can be quoted with the panel if needed.