Display Module Mesh Layout for High-Transmittance Sensor Areas

Solution Overview

Problem

Existing display modules face challenges in achieving high transmittance in areas designated for electronic components, such as cameras or sensors, due to the presence of pixel circuits and electrodes that obstruct light transmission.

Innovation Solution

A display module design featuring a first area with higher transmittance, a second area with lower transmittance, and a third area for normal display, along with a sensor structure comprising different mesh structures and disconnection portions to optimize light transmission and accommodate electronic modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pixel circuits and electrodes are disposed in the display panel to enable sensor operation, then sensor functionality is achieved, but light transmittance in the first area is reduced

Engineering Contradiction:

Improvesensor operationVSAvoidlight transmittance

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The display panel is divided into three distinct areas: a first area with higher transmittance for sensor operation, a second area with lower transmittance for normal display, and a third area surrounding the second area. This segmentation allows different regions to serve different functions with optimized transmittance characteristics.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pixel circuits and electrodes are selectively disposed only in the second and third areas, while the first area maintains a simpler structure with fewer obstructing elements. This local differentiation ensures that the first area achieves higher transmittance while other areas maintain full functionality.

Inventive Principle:

Principle #3Local quality

2Reliability

If the first area has higher transmittance to improve sensor functionality, then sensor performance is enhanced, but the complexity of the display panel structure increases

Engineering Contradiction:

Improvesensor performanceVSAvoiddisplay panel structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The display panel is divided into three distinct areas: a first area with higher transmittance for sensor operation, a second area with lower transmittance for normal display, and a third area surrounding the second area. This segmentation allows different regions to serve different functions with optimized transmittance characteristics.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of making the entire display panel have high transmittance and then adding components, the approach is inverted: the first area is designed from the outset to have higher transmittance by minimizing components, while other areas receive the full complement of pixel circuits and electrodes.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of operation

If pixel circuits are disposed in the second area to enable normal display, then display functionality is maintained, but transmittance in that area is reduced

Engineering Contradiction:

Improvedisplay functionalityVSAvoidtransmittance

Core Design Contradiction:

Ease of operationVSIllumination intensity

Solution Approach 1:

The pixel circuits and electrodes are selectively disposed only in the second and third areas, while the first area maintains a simpler structure with fewer obstructing elements. This local differentiation ensures that the first area achieves higher transmittance while other areas maintain full functionality.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The display panel is divided into three distinct areas: a first area with higher transmittance for sensor operation, a second area with lower transmittance for normal display, and a third area surrounding the second area. This segmentation allows different regions to serve different functions with optimized transmittance characteristics.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12495696B2Display module having increased transmittance and electronic device including the display module

Publication Date: 2025.12.09 SAMSUNG DISPLAY CO LTD

AI summary

A display module includes: a display panel having a first area, a second area, and a third area; and a sensor disposed on the display panel, wherein the sensor has a transmissive area, a first sensing area, and a second sensing area, wherein the transmissive area overlaps the first area, wherein the first sensing area overlaps the second area, and the second sensing area overlaps the third area, wherein the sensor includes a plurality of first electrodes and a plurality of second electrodes, and each of the plurality of first electrodes and the plurality of second electrodes has a mesh structure, and wherein the mesh structure includes a first mesh structure and a second mesh structure, wherein the first mesh structure overlaps the first sensing area, wherein the second mesh structure overlaps the second sensing area. The first mesh structure and the second mesh structure are different from each other.