Daisy Chain Display Panel Pixel Packet Control
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Solution Overview
Problem
Display panels, particularly those using organic EL technology, face limitations in flexibility and efficiency due to the need for complex wiring and high power consumption, especially in applications requiring high definition and fast frame rates.
Innovation Solution
A display panel configuration where pixels are connected in a daisy chain fashion, using digital signals and pixel packets with variable data to control light emission, allowing for flexible operation and reduced power consumption by only rewriting luminance data for changed pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If pixels are connected in a daisy chain fashion using digital signals, then transfer speed and image quality are improved, but device complexity increases due to the need for pixel packets with variable data
Solution Approach 1:
The display panel divides pixels into groups where each pixel packet controls a predetermined number of unit pixels. This segmentation allows digital signals to be transmitted efficiently through local wiring while reducing the overall complexity by organizing pixels into manageable groups rather than requiring individual control wiring for each pixel.
Solution Approach 2:
The patent implements dynamic control through pixel packets containing variable data that can be rewritten. This allows the system to adaptively control luminance data for changed pixels only, improving transfer speed by eliminating redundant transmissions while the dynamic rewriting capability manages complexity through intelligent signal processing.
2Manufacturing precision
If complex wiring is used to control each pixel individually, then manufacturing precision can be maintained, but device complexity and power consumption increase
Solution Approach 1:
Multiple pixels are grouped together and controlled by a single pixel packet containing luminance data for a predetermined number of unit pixels. This merging approach reduces the number of wiring connections required while maintaining manufacturing precision through the structured organization of pixels into groups that can be addressed systematically.
Solution Approach 2:
The pixel packet structure serves multiple functions: it carries luminance data for multiple pixels, enables selective rewriting for changed pixels only, and provides a universal control mechanism that works across different display configurations. This multi-functionality reduces device complexity by eliminating the need for separate control mechanisms for each pixel.
3Reliability
If all pixel luminance data is rewritten for each frame, then image quality is maintained, but power consumption increases
Solution Approach 1:
Instead of rewriting luminance data for all pixels in each frame, the system performs partial rewriting only for pixels that have changed. This partial action approach maintains image quality by updating only necessary pixels while significantly reducing power consumption by eliminating redundant data transmissions and rewriting operations for unchanged pixels.
Solution Approach 2:
The system implements a feedback mechanism where pixel packets contain variable data that tracks changes in luminance information. By monitoring which pixels have changed and only rewriting data for those specific pixels, the system maintains high image quality while optimizing power consumption through intelligent, selective updates rather than blanket rewriting of all pixel data.
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 enhances image quality, reduces power consumption, and simplifies the panel's configuration by allowing each pixel to drive subsequent pixels through local wiring, improving transfer speed and supporting high-definition and high-frame-rate displays.
Implementation Method 1
current drive type optical devices with light emission luminance changeable according to a value of a current flowing therethrough, for example, organic EL devices
Data Source
AI summary
A display panel includes: a display section including a plurality of unit pixels; and a display drive section configured to generate first pixel packets and supply the first pixel packets to the display section, the first pixel packets each including luminance data of a digital signal, the pieces of luminance data determining respective luminances of respective predetermined number of unit pixels of the plurality of unit pixels, and the first pixel packets being equal in number to the predetermined number of unit pixels.