18637666. PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME simplified abstract (Samsung Display Co., LTD.)

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PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME

Organization Name

Samsung Display Co., LTD.

Inventor(s)

Kyung Hoon Chung of Yongin-si (KR)

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

This abstract first appeared for US patent application 18637666 titled 'PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME

Simplified Explanation:

This patent application describes a pixel circuit that includes various components such as a light emitting element, driving transistor, initialization transistor, compensation transistor, and storage capacitor.

  • The pixel circuit has a light emitting element connected to a power supply line.
  • A driving transistor controls the current flowing through the light emitting element.
  • An initialization transistor is connected between the driving transistor and an initialization power line.
  • A compensation transistor is connected between the power supply line and the driving transistor.
  • A storage capacitor is connected between the gate electrode and the second electrode of the driving transistor.

Key Features and Innovation:

  • Integration of various transistors and capacitors in a pixel circuit for efficient control of light emitting elements.
  • Use of initialization and compensation transistors to optimize the performance of the driving transistor.
  • Storage capacitor for storing charge and enhancing the operation of the driving transistor.

Potential Applications:

  • Display technologies such as OLED screens.
  • Lighting systems.
  • Image sensors.

Problems Solved:

  • Efficient control of light emitting elements.
  • Optimization of current flow in pixel circuits.
  • Enhanced performance of driving transistors.

Benefits:

  • Improved display quality.
  • Energy efficiency.
  • Enhanced reliability of pixel circuits.

Commercial Applications:

The technology described in this patent application could have significant commercial applications in the display industry, lighting sector, and image sensor manufacturing. By optimizing the control of light emitting elements in pixel circuits, companies can develop more advanced and energy-efficient products that cater to a wide range of consumer needs.

Questions about Pixel Circuits:

1. How does the integration of various transistors and capacitors in a pixel circuit improve performance? 2. What are the potential challenges in implementing this technology in commercial products?


Original Abstract Submitted

A pixel circuit includes: a light emitting element having one end connected to a first power line supplying a first power voltage; a driving transistor for controlling an amount of current flowing to a second power voltage via the light emitting element electrically connected to a first electrode the driving transistor; an initialization transistor connected between a second electrode of the driving transistor and an initialization power line supplying an initialization voltage, the initialization transistor having a gate electrode connected to a first scan line; a compensation transistor connected between the first power line and the first electrode of the driving transistor, the compensation transistor having a gate electrode connected to a second scan line; and a storage capacitor connected between a gate electrode of the driving transistor and the second electrode of the driving transistor.