Display Substrate Computing Circuits for Flexible High-Bandwidth Rendering
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Solution Overview
Problem
Conventional computer architectures are limited in bandwidth and power efficiency for portable, graphic, and display-centric applications, particularly in rendering high-resolution images on flexible substrates, due to reliance on external controllers and high-bandwidth connections that are expensive and bandwidth-limited.
Innovation Solution
A digital display device with an array of pixels and driving circuits integrated on a substrate, along with computing circuits and chiplets for local signal processing, enabling high-bandwidth, low-power, and flexible display solutions by distributing computing and control elements directly on the display substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional computer architecture with external controllers and high-bandwidth connections is used, then image rendering capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the controller functionality directly into the display substrate by integrating computing circuits with pixel circuits. This consolidation eliminates the need for separate external controllers and high-bandwidth connections, thereby reducing device complexity while maintaining image rendering capability through in-situ processing.
Solution Approach 2:
The display substrate is segmented into multiple independent regions, each containing pixel circuits with embedded computing circuits. This segmentation allows distributed processing across the substrate, enabling complex image rendering functions to be performed locally without requiring a centralized external controller, thus reducing overall system complexity.
2Productivity
If conventional computer architecture with external controllers is used, then image rendering capability is improved, but power consumption increases
Solution Approach 1:
The computing circuits perform image processing and rendering operations in advance within the pixel circuits on the display substrate. By pre-processing images locally before display, the system eliminates the need for continuous high-bandwidth data transmission from external controllers, thereby reducing power consumption while maintaining rendering capability.
Solution Approach 2:
Each pixel circuit contains embedded computing circuits that enable self-processing of image data. This self-service capability allows the display substrate to autonomously perform rendering operations without relying on external power-intensive controllers, reducing overall power consumption while maintaining image rendering functionality.
3Productivity
If conventional computer architecture is used, then processing capability is improved, but form factor increases
Solution Approach 1:
The patent combines computing circuits and pixel circuits into a single integrated display substrate. This merging eliminates the need for separate processing units and external controllers, thereby maintaining high processing capability while significantly reducing the overall volume and enabling thin, flexible form factors suitable for portable devices.
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 approach enhances display bandwidth, reduces external processing needs, achieves a thin and flexible form factor, and provides high integration and interactivity, supporting high-data-rate image rendering and processing within the display device.
Implementation Method 1
each pixel including a first electrode, one or more layers of light-emitting material located over the first electrode, and a second electrode located over the one or more layers of light-emitting material, the pixels emitting light in response to a current passed through the one or more layers of light-emitting material by the first and second electrodes
Data Source
AI summary
A digital display device includes a display substrate; an array of pixels formed on the display substrate; an array of driving circuits located on the display substrate, each driving circuit electrically connected to one or more pixels for controlling a pixel current provided to each pixel; an array of computing circuits located on the display substrate, each computing circuit including circuits for signal or image processing and for communicating with neighboring computing circuits; a plurality of electrical conductors formed on the display substrate and connected to each of the driving circuits and digital computing circuits, wherein each computing circuit is connected with an electrical conductor to each of its neighbors in the array of computing circuits; and means for providing an image signal connected to one or more of the electrical conductors.