Display Panel Layout for Optical Signal Propagation and Reduced Bezel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels face challenges in achieving a larger display region while minimizing the non-display region, particularly the bezel area, which obstructs optical signals and reduces the overall display efficiency.
Innovation Solution
The display panel is designed with specific regions allowing optical signal propagation and incorporating a circuit element layer with signal lines and pixel driving circuits positioned to minimize the non-display region, including a second panel region with higher light transmittance and a third region along the periphery to accommodate these elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the non-display region is reduced to increase display area, then the display efficiency is improved, but the optical signal transmission is obstructed by the bezel
Solution Approach 1:
The patent extracts the harmful bezel region from the display panel structure by creating a second panel region with higher light transmittance that allows optical signals to pass through. This extraction enables the display area to extend to the edges of the substrate, eliminating the traditional non-display bezel area while maintaining optical signal transmission capability.
Solution Approach 2:
The patent applies local quality by creating distinct regions with different optical properties. The first panel region has standard light transmittance for display pixels, while the second panel region has enhanced light transmittance specifically for optical signal propagation. This localized differentiation allows the bezel area to serve dual purposes: structural support and optical transmission.
2Productivity
If the display region is expanded to maximize screen area, then the display efficiency is improved, but the circuit element placement becomes more difficult
Solution Approach 1:
The patent segments the display panel into three distinct regions: a first panel region containing pixel rows and columns for display, a second panel region with enhanced light transmittance for optical signals, and a third panel region for housing circuit elements. This segmentation allows circuit elements to be strategically positioned in dedicated areas without compromising the expanded display region or optical signal transmission.
Solution Approach 2:
The patent resolves the circuit placement challenge by transitioning to a three-dimensional layered structure. Circuit elements are positioned in the third panel region at a different spatial layer, allowing them to coexist with the expanded two-dimensional display region without physical interference. This dimensional separation enables maximum display area while maintaining manufacturability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the display efficiency by increasing the display area while maintaining a minimal non-display region, allowing for improved optical signal transmission and reduced bezel size.
Implementation Method 1
The second panel region is configured to allow propagation of an optical signal
Data Source
AI summary
A display panel including a first panel region (FPR) including (n−1)-th and n-th pixel rows ((n−1)PR and nPR), and a second panel region (SPR) dividing the nPR to propagate an optical signal. The display panel includes a circuit element layer (CEL) and a display element layer (DEL). The CEL includes a signal line (SL), a pixel driving circuit (PDC), and first to third regions. The SL and the PDC are in the first region. The second region (SR) corresponds to the SPR. The SL and the PDC are not in the SR. The third region (TR) corresponds to the SPR and is along a periphery of the SR. The SL is in the TR, and includes an (n−1)-th scan line ((n−1)SL) connected to the (n−1)PR, an n-th reset line (nRL) connected to the nPR, and a first row connection line in the TR and connecting the (n−1)SL and the nRL.