Transflective Display Panel Boundary Serration Reduction
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Solution Overview
Problem
Transflective non-rectangular display panels suffer from serrated displays at their boundaries due to mismatched sub-pixel shapes, leading to unsmooth patterns and affected display effects.
Innovation Solution
Incorporating a light shielding layer in the transmissive and reflective regions of abnormal pixels, which are partially blocked to control light emission, creating a brightness transition region and a blurred boundary between the display and non-display areas, thus reducing serrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If normal rectangular sub-pixels are used in a non-rectangular display panel, then the manufacturing process is simple, but the display effect near the boundary is poor due to serrated lines
Solution Approach 1:
The patent applies different structures to different regions: normal rectangular sub-pixels are used in the main display area for simple manufacturing, while abnormal pixels with non-rectangular arrangements are used at the boundary where the first boundary passes through. This local differentiation resolves the contradiction by maintaining manufacturing simplicity in most areas while achieving boundary smoothness where needed.
Solution Approach 2:
The patent segments the display panel into three types of pixels: normal pixels (fully within display region), abnormal pixels (passed through by first boundary), and non-display pixels (fully outside display region). This segmentation allows different structural optimizations for different functional requirements, solving the boundary serration problem without complicating the entire panel structure.
2Adaptability or versatility
If the first boundary is designed to create a non-rectangular display region, then the display shape meets diverse application requirements, but serrated lines appear near the boundary due to sub-pixel mismatch
Solution Approach 1:
The patent introduces asymmetric abnormal pixel structures at the boundary where the first boundary passes through. These abnormal pixels have non-rectangular sub-pixel arrangements that asymmetrically match the non-rectangular display region shape, eliminating serrated lines while preserving the versatile non-rectangular display shape.
3Ease of manufacture
If sub-pixels are arranged in regular rectangular patterns, then the manufacturing process is straightforward, but the light emission at the boundary is unsmooth causing serrated display effects
Solution Approach 1:
The patent applies different sub-pixel arrangement qualities to different locations: regular rectangular patterns in the main area for manufacturing simplicity, and specially designed abnormal pixel patterns at the boundary for smooth light emission. This local quality differentiation resolves the contradiction between manufacturing ease and boundary illumination smoothness.
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
The solution results in a smooth edge of the light-emitting region, both on a micro and macro level, effectively reducing serrated displays and improving the display effect in transflective non-rectangular panels.
Implementation Method 1
The transmissive dark region and the reflective dark region are provided with the light shielding layer
Implementation Method 2
Under poor light, the backlight source may be turned on, and the transflective display panel operates in a transmissive mode
Implementation Method 3
Under strong light, the backlight source may be turned off, and the transflective display panel operates in a reflective mode, to utilize reflected light
Data Source
AI summary
A transflective and non-rectangular display panel and a display device are provided. The non-rectangular display panel includes a display region, a non-display region surrounding the display region, multiple pixels including multiple sub pixels, and a light shielding layer. There is a first boundary between the display region and the non-display region, and a region surrounded by the first boundary and the display region is non-rectangular. Each of the multiple pixels includes at least three of the multiple sub pixels. An open region of each of the multiple sub pixels has a transmissive region and a reflective region. The multiple pixels include normal pixels in the display region and abnormal pixels passed through by the first boundary. In each of the abnormal pixels, each of the transmissive region and the reflective region is partially blocked by the light shielding layer and partially emits light therefrom.