Universal HDR Display Panel Support for Multi-GPU Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional internal HDR display panel assemblies in notebook computers are limited in supporting different graphics processing units (GPUs) from various suppliers, leading to abnormal display or distorted images due to varying Display Port Configuration Data (DPCD) register definitions between iGPUs and dGPUs.
Innovation Solution
Implementing a universal support system that allows a single high-dynamic range (HDR) display panel assembly to operate with both integrated and discrete GPUs from multiple suppliers by using programmable integrated circuits to select and load the appropriate DPCD profiles based on GPU identification information, enabling seamless switching between GPUs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single HDR display panel assembly is used to support multiple GPU types, then device complexity and inventory management are reduced, but the DPCD register definition conflicts between different GPU suppliers cause abnormal display or distorted images
Solution Approach 1:
The TCON is designed with dynamic reconfigurability, allowing it to change its DPCD register definitions based on which GPU is detected. The system transitions from a static, single-definition TCON to a dynamic one that adapts its interface characteristics to match the connected GPU supplier's expectations, thereby maintaining reliable display output while supporting multiple GPU types
Solution Approach 2:
The invention changes the DPCD register parameters (brightness control, color processing) based on the detected GPU type. By detecting the GPU supplier and switching between pre-configured DPCD register sets, the system adjusts critical display parameters to be compatible with each GPU's expected interface definition, resolving the conflict between universal support and image quality
2Power
If Hybrid Graphics is disabled and the display switches to dGPU, then graphics processing power is improved, but the different DPCD definition required by dGPU cannot be supported causing display abnormalities
Solution Approach 1:
The TCON is designed with multi-functionality to support both iGPU and dGPU interfaces universally. By incorporating multiple DPCD register definitions and implementing automatic detection and switching capability, the TCON becomes adaptable to different GPU types, ensuring that High Dynamic Range display functionality is maintained regardless of which GPU is active
3Reliability
If multiple dedicated display panels are used for different GPU types, then display image quality is maintained, but device complexity and inventory management become problematic
Solution Approach 1:
Instead of requiring separate display panel assemblies for different GPU types, the invention makes a single HDR display panel assembly universal. The TCON within this single assembly is configured to support multiple DPCD register definitions, eliminating the need for multiple dedicated panels while maintaining image quality across all GPU configurations
Solution Approach 2:
The system creates virtual copies of different DPCD register configurations within the single TCON. By storing multiple sets of DPCD register definitions (brightness control, color processing) and switching between them based on GPU detection, the system effectively replicates the behavior of multiple dedicated panels without the physical complexity and inventory burden
Data Source
AI summary
Systems and methods are provided that may be implemented to enable the same internal display panel assembly (e.g., HDR display panel assembly) of an information handling system to support proper operation with image data provided from different types of graphics processing units (GPUs). A single configuration or type of the internal display panel assembly may be provided within the system to support graphics from one or more GPUs from multiple different graphics suppliers, and one or more programmable integrated circuits of the system may be configured to communicate information or signal/s to a timing controller (TCON) of the internal display panel assembly that corresponds to a proper DPCD profile or interface specification selection for use with a currently-selected GPU of the system. The TCON of the internal panel assembly may be configured to respond to this communicated information or signal/s by selecting and loading a proper DPCD profile or interface definition that corresponds to the currently-selected GPU of the system.