Display Panel Pixel Islands Transparent Bridging

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Solution Overview

Problem

In display panels, the circuit integration area between high-pixel and low-pixel areas creates a non-light-emitting area, reducing light transmittance and limiting the size of the low-pixel density area due to the need for pixel driving circuits, which affects display effectiveness.

Innovation Solution

The display panel design includes a first display area with pixel islands containing light-emitting units and pixel driving circuits, connected by transparent bridging line segments that eliminate the need for a separate circuit integration area, allowing for increased light transmittance and flexible pixel density distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If pixel driving circuits are integrated in a separate circuit integration area between high-pixel and low-pixel areas, then light transmittance of the low-pixel area is improved, but a non-light-emitting area is formed reducing overall display effectiveness

Engineering Contradiction:
Improvelight transmittanceVSAvoiddisplay effectiveness
Core Design Contradiction:
Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The patent merges the pixel driving circuits with the light-emitting units by integrating them within the same pixel islands in the first display area. This eliminates the separate circuit integration area and its associated non-light-emitting regions, allowing the entire first display area to contribute to light emission while maintaining proper circuit functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a planar separation of circuit and display areas to a three-dimensional integration where pixel driving circuits are positioned within the pixel islands structure. This vertical integration allows circuits to occupy space that does not compromise the light-emitting aperture, resolving the contradiction between circuit functionality and display effectiveness.

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

2Illumination intensity

If pixel driving circuits are placed in a circuit integration area, then light transmittance of the low-pixel area is improved, but the size of the low-pixel density area is limited

Engineering Contradiction:
Improvelight transmittanceVSAvoidlow-pixel density area size
Core Design Contradiction:
Illumination intensityVSArea of stationary object

Solution Approach 1:

By merging pixel driving circuits into the pixel islands within the first display area, the patent eliminates the need for a separate circuit integration area. This allows the low-pixel density area to expand freely since circuit space is no longer a limiting factor, enabling larger display areas with flexible pixel density distribution.

Inventive Principle:
Principle #5Merging (Combining)

3Illumination intensity

If pixel driving circuits are integrated within the first display area in pixel islands, then light transmittance and aperture ratio are improved, but circuit layout complexity increases

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

Solution Approach 1:

The patent segments the first display area into multiple pixel islands, with each pixel island containing integrated pixel driving circuits and light-emitting units. This modular segmentation simplifies the overall circuit layout by localizing circuit functions within discrete units, making the complex integration more manageable while maintaining high light transmittance.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20230269985A1Display panel and display device
Publication Date: 2023.08.24 CHENGDU BOE OPTOELECTRONICS TECH CO LTD
  • US20230269985A1 patent drawing
  • US20230269985A1 patent drawing
  • US20230269985A1 patent drawing

AI summary

The present disclosure relates to the field of display technology, and provides a display panel and a display device. The display panel includes a first display area and a second display area, and further includes a plurality of first pixel islands. The first pixel islands are in the first display area and include: at least one first light-emitting unit; at least one first pixel driving circuit, arranged in a one-to-one correspondence with the at least one first light-emitting unit, and configured to provide a driving current to a first light-emitting unit corresponding thereto; and a plurality of first signal line segments configured to provide signals to the at least one first pixel driving circuit.