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Super PLS — Plane Line Switching — is Samsung's proprietary equivalent to IPS LCD technology. Developed as an alternative to LG Display's IPS panels, Super PLS offers comparable viewing angle performance and colour accuracy while providing Samsung with an in-house display technology that does not depend on a competitor's patents or manufacturing capacity.
The Relationship to IPS
IPS and PLS both solve the same problem: the narrow viewing angles and colour inaccuracy of standard TN LCD panels. IPS achieves this by placing both electrodes on the same substrate plane and aligning the liquid crystals horizontally. PLS uses a similar in-plane electrode approach but modifies the electrode geometry — using fan-shaped electrodes rather than the parallel-finger arrangement of standard IPS — which Samsung claims improves light transmittance and aperture ratio.
The "Super" prefix denotes Samsung's enhanced version of PLS, with further improvements to brightness and panel uniformity.
Transmittance and Brightness
Samsung's engineering team reported that Super PLS achieves around ten percent higher light transmittance than IPS of equivalent generation. In practical terms, this means the backlight can produce the same screen brightness at lower power, or a brighter screen at the same power. For a device running on a battery, either outcome is beneficial.
Viewing Angles and Colour
Like IPS, Super PLS delivers viewing angles up to 178 degrees with minimal colour shift. The in-plane electrode arrangement keeps liquid crystal movement within the horizontal plane, maintaining consistent optical behaviour across a wide range of viewer positions.
Colour gamut coverage in Super PLS panels is comparable to mainstream IPS, supporting the sRGB space well and, in later iterations, extending toward the DCI-P3 range.
Where It Appeared
Super PLS displays were used in Samsung's Galaxy Tab series and in some Galaxy A-series smartphones before Samsung's emphasis shifted overwhelmingly toward AMOLED. The technology represents Samsung's most advanced LCD development, though it has become less prominent as OLED production costs have decreased.
