Display Panel Driving Circuits Outside the Optical Component Region

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Solution Overview

Problem

The integration of pixel driving circuits in the optical component region of display panels affects light transmittance and photosensitive performance, reducing the screen-to-body ratio and overall display quality.

Innovation Solution

The pixel driving circuits for the optical component region are positioned outside the optical component region, with first pixel driving circuits in the display region connected to second light-emitting elements, enhancing light transmittance and photosensitive performance while maintaining display functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If pixel driving circuits are integrated in the optical component region, then the screen-to-body ratio is increased and display functionality is maintained, but light transmittance and photosensitive performance are reduced

Engineering Contradiction:
Improvescreen-to-body ratioVSAvoidlight transmittance
Core Design Contradiction:
Area of stationary objectVSIllumination intensity

Solution Approach 1:

The pixel driving circuits are extracted from the optical component region and relocated to the display region. Specifically, the pixel driving circuits are arranged in a first pixel drive unit column located in the display region, while the light-emitting elements remain in the optical component region. This separation allows the optical component region to have high light transmittance for photosensitive devices while the display region contains the driving circuits.

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If pixel driving circuits are integrated in the optical component region, then display functionality is maintained, but overall display quality is reduced

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

Solution Approach 1:

The patent utilizes the spatial dimension by arranging pixel drive unit columns at different locations. The first pixel drive unit column is positioned in the display region adjacent to the optical component region, allowing electrical connection across regions while maintaining spatial separation of functions. This dimensional arrangement enables both display functionality and high display quality.

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

3Illumination intensity

If pixel driving circuits are positioned outside the optical component region, then light transmittance and photosensitive performance are improved, but device complexity increases

Engineering Contradiction:
Improvelight transmittanceVSAvoidcircuit arrangement complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent merges the pixel drive unit columns into a unified arrangement in the display region. The first pixel drive unit column contains multiple first pixel driving circuits that are electrically connected to light-emitting elements in the optical component region. This consolidation simplifies the overall device structure by having all pixel driving circuits in one location rather than distributed throughout.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12439788B2Display panel and device with optical component region pixel driving circuits outside the optical component region
Publication Date: 2025.10.07 WUHAN TIANMA MICRO ELECTRONICS CO LTD
  • US12439788B2 patent drawing
  • US12439788B2 patent drawing
  • US12439788B2 patent drawing

AI summary

Provided are a display panel and a display device. The display panel includes a display region and light-emitting elements. The display region includes a first display region and an optical component region. The light-emitting elements include first light-emitting elements and second light-emitting elements, where the first light-emitting elements are located in the first display region, and the second light-emitting elements are located in the optical component region. The first display region includes multiple pixel drive unit columns arranged along a first direction, the multiple pixel drive unit columns include a first pixel drive unit column, the first pixel drive unit column includes multiple first pixel driving circuits, and one of the multiple first pixel driving circuits is electrically connected to one of the second light-emitting elements.