17970153. DISPLAY PANEL simplified abstract (Samsung Electronics Co., Ltd.)
Contents
DISPLAY PANEL
Organization Name
Inventor(s)
Yong-Sang Kim of Suwon-si (KR)
DISPLAY PANEL - A simplified explanation of the abstract
This abstract first appeared for US patent application 17970153 titled 'DISPLAY PANEL
Simplified Explanation
The abstract describes a display panel that consists of pixels arranged in a matrix form. Each pixel contains multiple sub-pixels, each with an inorganic light-emitting element, a constant current generator circuit, and a PWM circuit.
- The constant current generator circuit provides a driving current to the inorganic light-emitting element based on a constant current generator data voltage.
- The PWM circuit controls the time for the driving current to flow through the inorganic light-emitting element based on a PWM data voltage.
- The constant current generator circuit includes a first driving transistor, and the PWM circuit includes a second driving transistor.
- An internal compensation circuit is present in either the constant current generator circuit or the PWM circuit to compensate for the electrical characteristics of the first and second driving transistors.
Potential applications of this technology:
- High-resolution displays: The use of inorganic light-emitting elements and precise current control can result in high-quality, high-resolution displays.
- Consumer electronics: This technology can be applied to various consumer electronic devices such as smartphones, tablets, and televisions to improve display performance.
- Automotive displays: The display panels can be used in automotive applications, providing clear and vibrant visuals for infotainment systems and instrument clusters.
Problems solved by this technology:
- Accurate current control: The constant current generator circuit ensures that the driving current provided to the inorganic light-emitting elements remains constant, resulting in consistent brightness levels across the display.
- Precise time control: The PWM circuit allows for precise control of the time the driving current flows through the inorganic light-emitting elements, enabling accurate display of different shades and colors.
- Compensation for transistor characteristics: The internal compensation circuit helps compensate for any variations or inconsistencies in the electrical characteristics of the driving transistors, ensuring stable and reliable performance.
Benefits of this technology:
- Improved display quality: The combination of inorganic light-emitting elements, constant current control, and precise time control results in enhanced display quality with vibrant colors and high contrast.
- Energy efficiency: The constant current generator circuit helps optimize power consumption by providing only the required current to the inorganic light-emitting elements, reducing energy waste.
- Enhanced reliability: The internal compensation circuit compensates for any variations in transistor characteristics, ensuring stable and reliable performance over time.
Original Abstract Submitted
In a display panel, pixels each including a plurality of sub-pixels are arranged in a matrix form, wherein each of the plurality of sub-pixels includes: an inorganic light-emitting element; a constant current generator circuit that provides a driving current to the inorganic light-emitting element on the basis of a constant current generator data voltage; and a PWM circuit for controlling the time for the driving current to flow through the inorganic light-emitting element on the basis of a PWM data voltage, wherein the constant current generator circuit includes a first driving transistor and the PWM circuit includes a second driving transistor, and wherein the constant current generator circuit or the PWM circuit comprises an internal compensation circuit that compensates for electrical characteristics of the first driving transistor and the second driving transistor.
