17597948. PIXEL CIRCUIT AND DISPLAY PANEL simplified abstract (TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.)

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PIXEL CIRCUIT AND DISPLAY PANEL

Organization Name

TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor(s)

Linfeng Liu (US)

PIXEL CIRCUIT AND DISPLAY PANEL - A simplified explanation of the abstract

This abstract first appeared for US patent application 17597948 titled 'PIXEL CIRCUIT AND DISPLAY PANEL

Simplified Explanation

The present application describes a pixel circuit and a display panel that enable high grayscale display using pulse amplitude modulation (PAM) and low grayscale display using pulse width modulation (PWM). The pixel circuit includes a driving module, a PAM module, a PWM module, an internal compensation module, and an electrical potential maintaining module. The internal compensation module performs internal compensation on a first terminal of the driving module to achieve hybrid driving of the pixel circuit.

  • The pixel circuit enables high grayscale display using PAM and low grayscale display using PWM.
  • The driving module controls the overall operation of the pixel circuit.
  • The PAM module controls high grayscale display by modulating the pulse amplitude.
  • The PWM module controls low grayscale display by modulating the pulse width.
  • The internal compensation module performs internal compensation on the driving module to improve its performance.
  • The electrical potential maintaining module maintains the electrical potential of the pixel circuit.

Potential applications of this technology:

  • High-quality displays: The pixel circuit enables high grayscale display, allowing for more accurate and detailed representation of images.
  • Energy-efficient displays: The hybrid driving technique reduces power consumption by using PAM for high grayscale display and PWM for low grayscale display.
  • Mobile devices: The pixel circuit can be used in mobile devices such as smartphones and tablets to enhance the display quality while optimizing power usage.

Problems solved by this technology:

  • Limited grayscale display: The pixel circuit addresses the limitation of traditional display panels by enabling both high and low grayscale display using different modulation techniques.
  • Power consumption: The hybrid driving technique reduces power consumption by efficiently controlling the grayscale display based on the content being displayed.

Benefits of this technology:

  • Improved display quality: The pixel circuit allows for high grayscale display, resulting in more accurate and vibrant images.
  • Energy efficiency: The hybrid driving technique optimizes power usage by dynamically adjusting the modulation technique based on the grayscale level.
  • Enhanced user experience: The technology improves the visual experience for users by providing better image quality and longer battery life in mobile devices.


Original Abstract Submitted

A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.

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