Display Interface Partitioning for Multi-Display Bandwidth Reduction

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Solution Overview

Problem

Conventional display interfaces consume excessive power and bandwidth as they transmit display data to all drivers, even if only a portion of the display is controlled by each driver, and they cannot efficiently connect multiple displays to a single computing device.

Innovation Solution

The display interface is partitioned such that each group of pixels is assigned specific display interface lanes, allowing only relevant display data to be transmitted to the corresponding drivers, reducing unnecessary data transmission and enabling multiple displays to be connected to a single computing device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If display data is transmitted to all drivers through a single display interface, then complete display data is available to each driver, but power consumption and bandwidth requirements increase excessively

Engineering Contradiction:

Improvedisplay data completenessVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The display interface is partitioned into multiple lanes, and display data is segmented and routed to different drivers based on their specific display regions. Each driver receives only the data relevant to its controlled portion of the display, eliminating the need for all drivers to process complete display data.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different drivers are assigned different qualities or types of data based on their local requirements. Each driver receives data specifically tailored to its controlled display region, optimizing power consumption and bandwidth usage for each local component.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If display data is transmitted to all drivers, then each driver can decode data for its responsible portion, but bandwidth requirements and power consumption increase

Engineering Contradiction:

Improvedriver decoding capabilityVSAvoiddata transmission volume

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

The patent extracts and transmits only the necessary portions of display data to each driver. Instead of transmitting complete display data to all drivers, the system extracts and routes specific data segments corresponding to each driver's responsible display region, reducing overall data transmission volume.

Inventive Principle:

Principle #2Taking out (Extraction)

3Device complexity

If a single display interface is used, then connection is simple, but multiple displays cannot be connected to a single computing device

Engineering Contradiction:

Improveinterface configurationVSAvoidmulti-display capability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The display interface is designed with multi-functionality to support multiple displays. By partitioning the interface into multiple lanes and enabling flexible data routing, a single display interface can serve multiple display devices simultaneously, eliminating the need for separate interfaces for each display.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11276373B2Display interface partitioning

Publication Date: 2022.03.15 INTEL CORP

AI summary

Various embodiments are generally directed to techniques to partition a display interface such that pixel data associated with display data having indications of an image to be displayed may be transmitted to multiple timing controller and driver (TCON-DR) sets over the display interface without necessitating each TCON-DR set receive all the pixel data. In some examples, the display interface may be partitioned such that each TCON-DR set receives only the pixel data for which the respective TCON-DR set corresponds to.