18325430. PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME simplified abstract (SAMSUNG DISPLAY CO., LTD.)

PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME

Organization Name

SAMSUNG DISPLAY CO., LTD.

Inventor(s)

SEMYUNG Kwon of YONGIN-SI (KR)

INJUN Bae of YONGIN-SI (KR)

SUGWOO Jung 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 18325430 titled 'PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME

Simplified Explanation

The patent application describes a pixel circuit for controlling a light emitting element in a display device.

• Includes a write transistor for writing data voltage in response to a write gate signal.
• Utilizes a driving transistor to generate driving current based on the data voltage and apply it to the light emitting element.
• Features a compensation transistor to diode-connect the driving transistor in response to a compensation gate signal.
• Utilizes first and second initialization transistors to apply initialization voltages to the driving transistor and the light emitting element, respectively.

---

1. 1. 1. Potential Applications

• Display devices such as OLED screens, LED displays, and electronic signage.
• Lighting systems for commercial or residential use.
• Automotive lighting applications.

1. 1. 1. Problems Solved

• Efficient control of light emitting elements in display devices.
• Improved initialization and compensation processes for pixel circuits.
• Enhanced overall performance and longevity of display technology.

1. 1. 1. Benefits

• Higher quality images with better contrast and brightness.
• Energy efficiency due to optimized driving current control.
• Extended lifespan of display devices due to improved initialization processes.

Original Abstract Submitted

A pixel circuit includes a light emitting element, a write transistor configured to write a data voltage in response to a write gate signal, a driving transistor configured to generate a driving current based on the data voltage and to apply the driving current to the light emitting element, a compensation transistor configured to diode-connect the driving transistor in response to a compensation gate signal, a first initialization transistor configured to apply a first initialization voltage to a control electrode of the driving transistor in response to an initialization gate signal, and a second initialization transistor configured to apply a second initialization voltage to an anode electrode of the light emitting element in response to a bias gate signal having an activation period longer than at least one of the compensation gate signal and the initialization gate signal.