Get the newsletter
Samsung · Display · Filed Jan 12, 2026 · USPTO published May 14, 2026 · May 14 release

Samsung Display Patents a Semiconductor Layer Layout to Reduce Signal Interference

Samsung Display is patenting a specific physical arrangement of semiconductor regions inside a display panel — one where a key semiconductor portion is deliberately kept from sitting directly above the data line beneath it. It sounds like a small structural detail, but in display engineering, stack geometry like this can be the difference between a pixel that performs cleanly and one that doesn't.

By · Updated · 3 min read

Samsung Display Patent: OLED Semiconductor Layer Layout, figure from US 2026/0136792 A1
Figure from the official USPTO publication.
Publication number
US 2026/0136792 A1(US20260136792A1)
Applicant
SAMSUNG DISPLAY CO., LTD.
Filed · Published
Jan 12, 2026 · May 14, 2026
Inventors
Sun Kwang KIM, Ki Nyeng KANG, Yoo Mi RA, Kyung-Ho PARK, HYUNJIN SONG, Kye Uk LEE, Hwan Young JANG
Status when we published
Waiting for an examiner
Document
20 claims
US classification
257/91
Parent application
Continuation of 18/122,245 (filed Mar 16, 2023)(18122245)

What Samsung's non-overlapping semiconductor layout actually does

Imagine a multi-story building where the electrical wiring on the ground floor runs directly under the offices above — and that proximity causes interference. That's roughly the problem Samsung is solving here.

Inside a display panel, there are stacked layers: conductive lines at the bottom carrying data, drive voltage, and initialization signals, and semiconductor regions above them that control how each pixel turns on. This patent describes a specific arrangement where the semiconductor region connected to the data line is not positioned directly above the data line itself. By avoiding that vertical overlap, Samsung can reduce the chance of parasitic capacitance or unwanted coupling between the two layers.

Parasitic capacitance is essentially an unintended electrical interaction between two conductors sitting close together — it can slow signals down or distort them. In a high-resolution display firing millions of pixels at high refresh rates, keeping these interactions under control matters for image accuracy and consistency.

How Samsung's three-portion semiconductor layer is wired

The patent describes a display device built on a substrate with two key layers stacked on top of each other:

  • First conductive layer: Contains the data line (carries pixel programming signals), the initialization voltage line (resets pixel state before each frame), and the driving voltage line (provides the current that lights up the pixel).
  • Semiconductor layer: Sits on top of the conductive layer and is divided into three separate portions — each electrically connected to one of those three conductive lines respectively.

The critical claim is that the second semiconductor portion — the one tied to the data line — does not overlap the data line when viewed straight down through the stack (i.e., in the direction perpendicular to the substrate surface).

This non-overlapping geometry is the heart of the invention. In thin-film transistor (TFT) display stacks, when a semiconductor region sits directly above a conductive line, the two can form an unintended capacitor. By laterally offsetting the second semiconductor portion from its corresponding data line, Samsung aims to minimize that coupling effect.

The arrangement applies to what appears to be a pixel circuit likely used in OLED displays, where precise control of initialization and drive currents is critical for uniform brightness and accurate color.

What this means for next-gen OLED display quality

For consumers, this kind of structural refinement is invisible — but it feeds directly into display metrics you do notice, like uniformity, motion clarity, and gray-scale accuracy at high refresh rates. Samsung Display supplies panels to a wide range of device makers, so improvements at this foundational layer can ripple across smartphones, tablets, and monitors.

From a competitive standpoint, display panel engineering has become an arms race fought at the micron level. Patents like this one represent the incremental, cumulative work that separates premium panels from commodity ones. It's not a single dramatic leap — it's the kind of careful stack optimization that compounds over generations of display design.

Source: US 2026/0136792 A1 at the USPTO (PDF). Full patent text and figures are in the official publication.

Get our take in your Top Stories

Liked this breakdown? Add Patentlyze as a preferred source on Google, and our plain-English take shows up more often in your Top Stories the next time Samsung patent news breaks.

Add Patentlyze on Google One click.
There are more where this came from

We read every patent application Big Tech publishes and send you the ones worth knowing. Plain English, free, every week.

More from Samsung

All 1,629 Samsung patents →

More in Display

All 730 Display patents →