Samsung patents micro-LED pixel design to cut high-voltage parts
Samsung describes a display pixel that uses a micro-LED and a specific circuit layout to manage brightness. The design separates the control logic from the current driver to reduce the need for high-voltage components.
In the filing’s own words
A display device includes a pixel array having a plurality of pixels and a bias circuit configured to transmit a plurality of bias voltages to the pixels. Each pixel includes a micro-light emitting diode (LED), a driving circuit including at least one current source transistor configured to provide a driving current to the micro-LED based on the bias voltages, a control circuit including a plurality of memory devices configured to generate a pulse width modulation (PWM) signal, and a control transistor configured to supply a voltage to the driving circuit in response to the PWM signal. Separation of the control circuit and the current source transistor enables reduced high-voltage transistor usage and improved pixel integration.
What exactly they claim (claim 1)
1. A display device comprising: a pixel array including a plurality of pixels; and a bias circuit configured to transmit a plurality of bias voltages to each of the plurality of pixels, wherein each of the plurality of pixels includes: a micro-light emitting diode (LED) configured to receive a driving current; a driving circuit including at least one current source transistor configured to provide the driving current to the micro-LED based on the plurality of bias voltages; a control circuit including a plurality of memory devices, and configured to output a pulse width modulation (PWM) signal; and a control transistor configured to provide a supply voltage to the driving circuit based on the PWM signal input to a gate terminal of the control transistor.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- PIXEL INCLUDING MICRO-LED, DISPLAY DEVICE INCLUDING PIXEL, AND ELECTRONIC DEVICE INCLUDING THE SAME
- Publication number
- US20260331035A1
- Application number
- 19641721
- Filed
- Apr 8, 2026
- Published
- Oct 22, 2026
- Inventors
- 5
- Claims
- 20
Classified under
G09G 3/32 Physics & computingG09G 2310/08 Physics & computingMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.