18503186. PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME simplified abstract (Samsung Display Co., LTD.)

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PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME

Organization Name

Samsung Display Co., LTD.

Inventor(s)

YEONKYUNG Kim of Yongin-si (KR)

KWIHYUN Kim of Yongin-si (KR)

DONGWOO Kim of Yongin-si (KR)

PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18503186 titled 'PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME

Simplified Explanation:

The patent application describes a pixel circuit that controls a light emitting element using multiple transistors and capacitors.

  • A first transistor drives the light emitting element.
  • A second transistor writes data voltage in response to a write gate signal.
  • Capacitors are used to control the operation of the transistors.
  • A third transistor diode-connects the first transistor in response to a compensation gate signal.
  • A fourth transistor initializes the first transistor in response to a first initialization gate signal.
  • A fifth transistor transmits the driving current to the light emitting element in response to an emission signal.

Key Features and Innovation:

  • Use of multiple transistors and capacitors for precise control of the light emitting element.
  • Integration of various signals to enable efficient operation of the pixel circuit.
  • Diode connection for compensation and initialization processes.
  • Emission signal for transmitting driving current to the light emitting element.

Potential Applications:

  • Display technologies such as OLED screens.
  • Lighting systems.
  • Signage and advertising displays.

Problems Solved:

  • Precise control of light emitting elements.
  • Efficient operation of pixel circuits.
  • Improved performance and reliability of displays.

Benefits:

  • Enhanced image quality.
  • Energy efficiency.
  • Extended lifespan of display devices.

Commercial Applications:

The pixel circuit technology described in the patent application has the potential to revolutionize the display industry by offering more precise control over light emitting elements, leading to improved image quality and energy efficiency. This innovation could be applied in various commercial sectors such as consumer electronics, signage, and lighting systems.

Questions about Pixel Circuit Technology: 1. How does the pixel circuit technology improve energy efficiency in display devices? 2. What are the potential challenges in implementing this technology in commercial products?


Original Abstract Submitted

A pixel circuit includes a light emitting element, a first transistor that applies a driving current to the light emitting element, a second transistor that writes a data voltage in response to a write gate signal, a first capacitor connected to a control electrode of the first transistor, a second capacitor including a first electrode connected to the second transistor and a second electrode connected to the control electrode of the first transistor, a third transistor that diode-connects the first transistor in response to a compensation gate signal, a fourth transistor that applies an initialization voltage to the control electrode of the first transistor in response to a first initialization gate signal, and a fifth transistor that transmits the driving current to the light emitting element in response to an emission signal.