Display Panel Circuit Separation for Under-Screen Camera Transmittance

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Solution Overview

Problem

The under-screen camera technology in display panels suffers from poor light transmittance in the second display region due to the inclusion of pixel circuits, leading to a suboptimal display effect.

Innovation Solution

A display panel design with a first display region containing pixel circuits and light-emitting elements, and a second display region with light-emitting elements connected by conductive traces, ensuring no overlap between pixel circuits and light-emitting elements in the second region, allowing for good light transmittance and maintaining pixel density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If pixel circuits are arranged in the second display region to drive light-emitting elements, then the light-emitting elements can be controlled to emit light, but the light transmittance of the second display region deteriorates

Engineering Contradiction:
Improvecontrol capability of light-emitting elementsVSAvoidlight transmittance
Core Design Contradiction:
Ease of operationVSIllumination intensity

Solution Approach 1:

The patent applies dimensional separation by moving pixel circuits from the second display region (where light-emitting elements are located) to the first display region. This spatial reconfiguration allows the second display region to be dedicated solely to light-emitting elements, thereby improving light transmittance while maintaining control capability through the relocated pixel circuits in the first display region.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent segments the display panel into two distinct functional regions: the first display region contains both pixel circuits and light-emitting elements for normal display, while the second display region contains only light-emitting elements for camera functionality. This segmentation allows each region to be optimized for its specific purpose, with the second region achieving superior light transmittance.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the second display region includes pixel circuits and light-emitting elements, then the display panel can function as a normal display, but the display effect deteriorates due to poor light transmittance

Engineering Contradiction:
Improvedisplay functionalityVSAvoiddisplay effect
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent reconfigures the spatial arrangement by relocating pixel circuits from the second display region to the first display region. This dimensional change enables the second display region to be optimized for light transmission while the first display region handles the control functions, thereby improving overall display effect while maintaining full display functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent applies local quality optimization by giving different functional characteristics to different regions: the first display region maintains the complete pixel circuit and light-emitting element structure for normal display, while the second display region is optimized with only light-emitting elements to achieve superior light transmission properties suited for camera functionality.

Inventive Principle:
Principle #3Local quality

3Illumination intensity

If pixel circuits are removed from the second display region, then light transmittance improves, but the control and driving of light-emitting elements becomes more complex

Engineering Contradiction:
Improvelight transmittanceVSAvoidcontrol structure
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent resolves the control complexity issue by relocating pixel circuits to the first display region, maintaining the existing control structure in a familiar location. This spatial reconfiguration allows the control system to remain relatively simple while achieving improved light transmittance in the second display region.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12614518B2Display panel and display device
Publication Date: 2026.04.28 CHENGDU BOE OPTOELECTRONICS TECH CO LTD
  • US12614518B2 patent drawing
  • US12614518B2 patent drawing
  • US12614518B2 patent drawing

AI summary

The present disclosure discloses a display panel and a display device. The display panel includes a base substrate including a first display region and a second display region. Since pixel circuits for driving light-emitting elements in the second display region are only disposed in the first display region but not disposed in the second display region, the light transmittance of the second display region is ensured to be good. Correspondingly, the display panel in the present disclosure has a good display effect.