Display Panel Sub-Pixel Density for Under-Screen Integration

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Solution Overview

Problem

Traditional electronic devices with notches or holes for front cameras and sensors cannot achieve a full-screen display, as these areas cannot display images, limiting the screen-to-body ratio and user experience.

Innovation Solution

A display panel with distinct sub-pixel density distribution areas, where the first area has higher transmittance for under-screen integration of photosensitive components, and a third sub-pixel density area adjacent to the boundary between display areas, driven by a second pixel circuit to match the brightness of the second sub-pixels, blurring the boundary between high and low PPI areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a notch or hole is formed in the display screen for front camera and sensor integration, then photosensitive components can be integrated, but the display area is reduced and full-screen display cannot be achieved

Engineering Contradiction:
Improveintegration of photosensitive componentsVSAvoiddisplay area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent implements under-screen integration by nesting the photosensitive component assembly within the display screen structure. The front camera, sensor, and other photosensitive components are positioned behind the display panel, with light transmission areas created in the display layers to allow light passage. This nesting approach enables component integration without sacrificing display area, achieving full-screen display while maintaining functional requirements for photosensitive components.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If sub-pixel density is reduced in the first display area for under-screen integration, then photosensitive components can be integrated, but the boundary between display areas becomes obvious with bright or dark lines

Engineering Contradiction:
Improveunder-screen integration capabilityVSAvoiddisplay uniformity at boundary
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by creating a transition zone (third sub-pixel density distribution area) with intermediate sub-pixel density between the first display area (lower density for integration) and the second display area (higher density for normal display). This gradual transition in sub-pixel density distribution smooths the boundary between regions, eliminating obvious bright or dark lines and maintaining display uniformity while preserving under-screen integration capability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12137594B2Display panel and driving method thereof and display apparatus
Publication Date: 2024.11.05 KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
  • US12137594B2 patent drawing
  • US12137594B2 patent drawing
  • US12137594B2 patent drawing

AI summary

A display panel and driving method thereof and a display apparatus. The display panel has a first display area and a second display area, a transmittance of the first display area is greater than a transmittance of the second display area, the display panel includes an array substrate, and a light-emitting layer arranged on the array substrate and includes a first sub-pixel density distribution area arranged corresponding to the first display area, a second sub-pixel density distribution area arranged corresponding to the second display area and a third sub-pixel density distribution area on at least one of the first display area and the second display area and arranged adjacent to a boundary between the first display area and the second display area, in which a third sub-pixel distribution density is between a first sub-pixel distribution density and a second sub-pixel distribution density.