Apple inc. (20240203332). GLOBAL NONLINEAR SCALER FOR MULTIPLE PIXEL GAMMA RESPONSE COMPENSATION simplified abstract

GLOBAL NONLINEAR SCALER FOR MULTIPLE PIXEL GAMMA RESPONSE COMPENSATION

Organization Name

apple inc.

Inventor(s)

Mario Miscuglio of Sunnyvale CA (US)

Kingsuk Brahma of Mountain View CA (US)

Jie Won Ryu of Santa Clara CA (US)

Shengkui Gao of Shoreline WA (US)

Yuchi Che of Santa Clara CA (US)

Graeme M Williams of San Diego CA (US)

Yi Qiao of San Jose CA (US)

Wei H Yao of Palo Alto CA (US)

Jean-Pierre S Guillou of La Jolla CA (US)

GLOBAL NONLINEAR SCALER FOR MULTIPLE PIXEL GAMMA RESPONSE COMPENSATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240203332 titled 'GLOBAL NONLINEAR SCALER FOR MULTIPLE PIXEL GAMMA RESPONSE COMPENSATION

Simplified Explanation

The patent application discusses a method to compensate for different pixel responses in display regions, ensuring consistent luminance across the screen.

• Global Nonlinear Scaler (GNLS) compensation is used to adjust gamma responses in displays with varying pixel densities.
• Per-channel and band-global gamma-to-voltage compensation is applied to minimize relative luminance errors.
• The innovation aims to enhance visual quality by reducing artifacts caused by pixel density variations.

Key Features and Innovation

• Compensation for different gamma responses in display regions.
• Global Nonlinear Scaler (GNLS) technique used for adjustment.
• Per-channel and band-global gamma-to-voltage compensation applied.
• Minimization of relative luminance errors among different display regions.

Potential Applications

The technology can be applied in various display devices with pixel density variations. It can improve visual quality in screens with non-universal voltage-to-luminance matching. Useful in electronic devices where optical calibration for each region is impractical.

Problems Solved

Addresses visual artifacts caused by pixel density variations. Ensures consistent luminance across different display regions. Improves the overall viewing experience on displays with varying pixel responses.

Benefits

Enhanced visual quality on displays with local pixel density variations. Reduction of relative luminance errors among different regions. Improved visualization of displayed content without distracting artifacts.

Commercial Applications

• Display manufacturing industry for enhancing screen quality.
• Consumer electronics companies for improving user experience.
• Digital signage industry for better visual communication.

Prior Art

Readers can explore prior patents related to display calibration, gamma correction, and pixel density compensation in electronic devices.

Frequently Updated Research

Stay updated on advancements in display calibration techniques, gamma correction algorithms, and pixel density compensation methods.

Questions about Display Compensation

How does the Global Nonlinear Scaler (GNLS) compensation work in adjusting gamma responses?

The GNLS technique applies a nonlinear scaling factor to adjust gamma responses in different display regions, ensuring consistent luminance levels.

What are the potential applications of per-channel and band-global gamma-to-voltage compensation in display technology?

Per-channel and band-global gamma-to-voltage compensation can be used to minimize relative luminance errors among different responses of display regions, improving visual quality and consistency.

Original Abstract Submitted

in a display characterized by regions with different pixel responses due, for example, to local pixel density variation, voltage-to-luminance matching may be non-universal. therefore, in order to avoid visual artifacts that may hinder a desired visualization of displayed content, it may be advantageous to compensate the different gamma responses. in some cases, such as with electronic devices having a single pixel density across the display, optical calibration may be performed to determine voltage-to-luminance matching. however, in electronic devices with local pixel density variations, it may be disadvantageous to perform optical calibrations for each region with a different pixel density. instead of using two distinct gamma curves which may include dedicated optical calibration, a global nonlinear scaler (gnls) compensation may be applied. embodiments may pertain to techniques for applying a per-channel and band-global gamma-to-voltage compensation to reduce or minimize a relative luminance error amongst different responses of display regions.