18155233. 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)

Dong Hwi Kim of Yongin-si (KR)

Na Yong Kim of Yongin-si (KR)

Chul Ho Kim of Yongin-si (KR)

Wang Jo Lee of Yongin-si (KR)

Jin Jeon 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 18155233 titled 'PIXEL CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME

Simplified Explanation

The abstract describes a pixel circuit that includes several transistors, a capacitor, and a light emitting element. The circuit is designed to control the operation of the light emitting element.

  • The first transistor is connected between two power lines and has a gate electrode connected to a first node and a back-gate electrode connected to a second node.
  • The second transistor is connected between a data line and the first node, with its gate electrode connected to a first scan line.
  • The third transistor is connected between a third power line and the first node, with its gate electrode connected to a reference scan line.
  • The fourth transistor is connected between the second node and a fourth power line, with its gate electrode connected to a second scan line.
  • The fifth transistor is connected between a first power line and the electrode of the first transistor, with its gate electrode connected to a light-emitting control line.

Potential applications of this technology:

  • Display technologies: This pixel circuit can be used in various display devices such as LCDs, OLEDs, and microLEDs to control the light emission of individual pixels.
  • Image sensors: The pixel circuit can also be used in image sensors to capture and process light signals.

Problems solved by this technology:

  • Efficient control: The pixel circuit provides a compact and efficient way to control the light emission of individual pixels, allowing for precise and accurate display or image sensing.
  • Power management: The circuit design allows for effective power management, reducing energy consumption and extending battery life in portable devices.

Benefits of this technology:

  • Improved image quality: The pixel circuit enables better control over the light emission of individual pixels, resulting in improved image quality with accurate colors and contrast.
  • Energy efficiency: The efficient power management of the circuit helps to reduce energy consumption, making it suitable for portable devices with limited battery capacity.


Original Abstract Submitted

A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.