OLED Panel Hollow Area Sensor Integration

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Solution Overview

Problem

Existing organic light-emitting display devices face challenges in achieving a high screen-to-body ratio, particularly in utilizing space around camera, earpiece, or sensor areas for effective display functionality.

Innovation Solution

The design incorporates a hollow area without pixel units, allowing for a higher pixel density in surrounding display areas, enabling integration of sensors and improved display functionality while maintaining a narrow frame and enhancing user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If pixel units are densely arranged to increase displayable area, then screen-to-body ratio is improved, but it becomes difficult to integrate sensors and other components in traditional locations

Engineering Contradiction:
Improvedisplayable areaVSAvoidsensor integration capability
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent extracts the sensor integration function from traditional edge locations and relocates it to the hollow area, separating the display function (pixel units) from the sensor integration function. This allows pixel units to be densely arranged around the hollow area while sensors are independently integrated within the hollow area itself, resolving the contradiction between display area and sensor integration.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions from two-dimensional edge-based sensor integration to a three-dimensional spatial arrangement where the hollow area serves as a dedicated integration zone. By utilizing the hollow area as a functional dimension, the design accommodates both high pixel density in the display area and sensor integration without spatial conflict.

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

2Length of stationary object

If frame width is reduced to improve screen-to-body ratio, then aesthetic appearance is improved, but it becomes challenging to accommodate necessary components and maintain structural integrity

Engineering Contradiction:
Improveframe widthVSAvoidcomponent accommodation capability
Core Design Contradiction:
Length of stationary objectVSEase of manufacture

Solution Approach 1:

The patent segments the display panel into distinct functional zones: a hollow area for sensor integration and surrounding display areas for pixel units. This segmentation allows the frame to be minimized while maintaining structural integrity by distributing components efficiently across different zones rather than competing for the same limited space.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by creating a hollow area with specific properties (empty space for component integration) surrounded by high-density pixel units. This local differentiation allows the frame width to be reduced overall while maintaining component accommodation capability in the strategically positioned hollow area.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If pixel density is increased in all areas uniformly, then display resolution is improved, but it wastes space that could be used for sensor integration and other functional elements

Engineering Contradiction:
Improvedisplay resolutionVSAvoidfunctional element integration
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent employs asymmetry by creating a non-uniform pixel distribution pattern with a hollow area devoid of pixel units. This asymmetric design strategically concentrates pixel units in surrounding display areas while leaving the central hollow area available for sensor integration, achieving both high display resolution and functional element integration without uniform pixel density.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS10580848B1Organic light-emitting display panel and organic light-emitting display device
Publication Date: 2020.03.03 WUHAN TIANMA MICRO ELECTRONICS CO LTD
  • US10580848B1 patent drawing
  • US10580848B1 patent drawing
  • US10580848B1 patent drawing

AI summary

The present disclosure provides an organic light-emitting display panel and device. The organic light-emitting display panel includes pixel units; gate lines; and data lines intersecting with and insulated from the gate lines. None of the pixel units is provided within the hollow area, and the pixel units are provided in a periphery of the hollow area. The display area includes a full display area and a half display area, and the full display area includes first to fifth display regions. The first display region, the hollow area and the second display region are sequentially arranged along a first direction. The half display area, the hollow area, and the third display region are sequentially arranged along a second direction. A number of pixel units per unit area in the full display area is greater than a number of pixel units per unit area in the half display area.