Curved Display Sub-Pixel Parallel Circuit Design
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Solution Overview
Problem
Organic light emitting display devices with curved boundaries face challenges in maintaining display quality due to pixel size disparities and inefficient power usage, leading to potential image distortion and increased power consumption.
Innovation Solution
The implementation of smaller sub-pixels arranged in parallel around the perimeter of a curved display area, each driven by a separate transistor, to enhance display resolution and reduce power consumption while maintaining a smooth curved boundary appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pixel size is reduced at the curved boundary to maintain smooth appearance, then display quality is improved, but power consumption increases due to inefficient pixel utilization
Solution Approach 1:
The display area is divided into a first area with first pixels and a second area with second pixels. This segmentation allows different pixel configurations in different regions, optimizing both display quality at the curved boundary and power efficiency through selective pixel activation.
Solution Approach 2:
Different pixel types are used in different regions: first pixels in the main display area and second pixels at the curved boundary. The second pixels have configurations optimized for curved boundary display quality, while maintaining overall power efficiency through the dual-pixel system.
2Measurement precision
If smaller sub-pixels are arranged in parallel at the outermost area, then display resolution is enhanced, but device complexity increases due to additional transistor connections
Solution Approach 1:
Multiple second pixels in the same column are connected in parallel to a single second transistor. This merging approach allows multiple pixels to share control circuitry, reducing the overall number of transistors needed while maintaining high display resolution at the curved boundary.
Solution Approach 2:
The second transistor serves multiple second pixels simultaneously through parallel connections, making it a multi-functional control element. This universal approach reduces device complexity by eliminating redundant transistor connections while preserving display resolution.
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 configuration improves display quality by maintaining a smooth curved boundary perception and reduces power consumption by allowing more organic light emitting diodes to be driven with the same current as a single pixel, enhancing operational efficiency.
Implementation Method 1
The organic light emitting diode may emit light using energy generated when excitons recombined in the organic light emitting layer return to a ground state from an excited state
Data Source
AI summary
A display apparatus includes first pixel groups each including first pixels disposed in a display area, and sub-pixel groups each including second pixels disposed at an outermost area of the display area and surrounding the first pixels, in which each of the second pixels has a size smaller than a size of each of the first pixels, the second pixels in each of the sub-pixel groups are respectively connected to each other in parallel.