Subpixel Rendering Layout for Under-Display Camera Panels

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Solution Overview

Problem

Existing display technologies with under-display cameras require tailored rendering methods for each type of display panel, leading to a large workload and inefficiency due to varying correspondences between subpixels and driving units, especially when through holes are introduced for light transmission.

Innovation Solution

A method involving a fixed and adjustable approach, where pre-designed sampling ranges and repeating modules are stored in databases, allowing for optimal display rendering by retrieving index numbers specific to the display panel's correspondence, eliminating the need for custom-tailored methods for each type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If tailor-made rendering methods and algorithms are designed for each type of correspondence between subpixels and driving units, then optimal display effects can be achieved, but the workload increases significantly and efficiency decreases

Engineering Contradiction:
Improvedisplay effect qualityVSAvoidrendering efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent creates a universal rendering method that can handle multiple correspondence types (1:1, 2:1, 4:1, etc.) through a single algorithm framework. The method uses a general sampling range selection process that adapts to different driving unit to subpixel ratios without requiring separate tailored algorithms for each type, thus achieving optimal display effects across all correspondence types while maintaining high rendering efficiency

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the approach from fixed tailor-made algorithms to a parameter-based adaptive system. By introducing sampling ranges as adjustable parameters that can be selected based on the specific correspondence type, the system can efficiently adapt to different rendering requirements without redesigning the core algorithm, thereby resolving the contradiction between precision and productivity

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If custom rendering algorithms are developed for each display panel type, then optimal display effects are achieved, but development time and workload increase

Engineering Contradiction:
Improvedisplay effect qualityVSAvoiddevelopment time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-defining sampling ranges for different correspondence types before actual rendering occurs. The system includes pre-configured sampling range information that can be directly retrieved and applied based on the display panel type, eliminating the need for time-consuming custom algorithm development for each new panel type while maintaining optimal display effects

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent develops a universal rendering framework that can accommodate multiple display panel types through a single algorithm structure. By using a general-purpose sampling range selection mechanism that adapts to different correspondence ratios, the system eliminates the need for separate custom algorithms for each panel type, significantly reducing development time while preserving display quality

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If multiple sampling strategies are implemented for different subpixel positions, then rendering accuracy improves, but system complexity increases

Engineering Contradiction:
Improvesampling accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the display panel into repeating modules, each containing multiple subpixels with different sampling requirements. Within each module, specific sampling ranges are assigned to different subpixel positions (e.g., first sampling range for first subpixels, second sampling range for second subpixels). This segmentation allows accurate rendering of each subpixel type while maintaining overall system manageability through modular organization

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by assigning different sampling ranges to different subpixel positions within the same repeating module. Each subpixel or group of subpixels receives the specific sampling strategy appropriate to its location and driving unit correspondence, optimizing rendering accuracy for each local region without requiring the entire system to implement all possible sampling strategies, thus balancing precision with complexity

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12626653B2Display panel and method for rendering subpixels of the display panel
Publication Date: 2026.05.12 KUNSHAN YUNYINGGU ELECTRONICS TECH CO LTD
  • US12626653B2 patent drawing
  • US12626653B2 patent drawing
  • US12626653B2 patent drawing

AI summary

The present disclosure provides a method for rendering subpixels of a display panel. The method includes: selecting a repeating module from a first database based on correspondences between a driving unit of a driving circuit of the display panel and a number of subpixels driven by the driving unit; dividing the subpixels of the display panel into a plurality of regions based on the selected repeating module; selecting a sampling range for each subpixel from a second database based on a position of the subpixel within the repeating module; sampling input display data for each subpixel based on the selected sampling range of the subpixel; and rendering the subpixel according to the sampled input display data. The first database comprises a plurality of pre-stored repeating modules, and the second database comprises a plurality of pre-stored sampling ranges.