Display Power Passthrough for Faster Daisy-Chain Charging

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Solution Overview

Problem

Existing display apparatuses face challenges in providing sufficient charging power to external devices in a daisy chain configuration without increasing their size or cost, leading to slow charging speeds and inconvenience.

Innovation Solution

A display apparatus with enhanced power capabilities is achieved by utilizing multiple communication interfaces to negotiate and combine power from connected devices, allowing for boosted power delivery through power negotiation and regulation, while maintaining a slim design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the power capabilities of the display apparatus are increased to provide sufficient charging power, then the charging speed and power delivery capability are improved, but the size and cost of components increase

Engineering Contradiction:
Improvecharging powerVSAvoidsize of display apparatus
Core Design Contradiction:
PowerVSWeight of stationary object

Solution Approach 1:

The patent combines power from multiple sources (power supply unit and second external apparatus) to provide boosted charging power to the first external apparatus. The controller merges the power output from the power supply unit with power received from the second external apparatus through the second communication interface unit, enabling the display apparatus to deliver higher power without increasing its own power generation capabilities or physical size.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display apparatus acts as an intermediary power delivery system that receives power from the second external apparatus and forwards it to the first external apparatus. This mediator approach allows the display apparatus to enable high-power charging without needing to generate the power itself, thus avoiding the need for larger power supply components.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Power

If the power capabilities of the display apparatus are increased to provide sufficient charging power, then the charging speed and power delivery capability are improved, but the cost of components increases

Engineering Contradiction:
Improvecharging powerVSAvoidcost of components
Core Design Contradiction:
PowerVSEase of manufacture

Solution Approach 1:

The patent combines power from multiple sources (power supply unit and second external apparatus) to provide boosted charging power to the first external apparatus. The controller merges the power output from the power supply unit with power received from the second external apparatus through the second communication interface unit, enabling the display apparatus to deliver higher power without needing more expensive high-capacity power supply components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display apparatus acts as an intermediary power delivery system that receives power from the second external apparatus and forwards it to the first external apparatus. This mediator approach allows the display apparatus to enable high-power charging without needing to invest in expensive high-capacity power generation components.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If power is supplied from the display apparatus to the external apparatus, then the external apparatus can be charged, but the charging speed is slow when the required power exceeds the supplied power

Engineering Contradiction:
Improvecharging speedVSAvoidpower delivery capability
Core Design Contradiction:
ProductivityVSPower

Solution Approach 1:

The patent combines power from multiple sources (power supply unit and second external apparatus) to provide boosted charging power to the first external apparatus. The controller merges the power output from the power supply unit with power received from the second external apparatus through the second communication interface unit, enabling the display apparatus to deliver higher power and achieve faster charging speeds.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12379887B2Display apparatus and method of controlling the same
Publication Date: 2025.08.05 SAMSUNG ELECTRONICS CO LTD
  • US12379887B2 patent drawing
  • US12379887B2 patent drawing
  • US12379887B2 patent drawing

AI summary

The disclosure relates to a display apparatus and a method of controlling the same, the display apparatus including: a display; a first communication interface unit comprising circuitry; a second communication interface unit comprising circuitry; a power supply; and a controller comprising at least one processor, comprising processing circuitry, individually and/or collectively, configured to: control the display to display a first image based on a signal received from a first external apparatus through the first communication interface unit, control a signal received from the first external apparatus to be output to a second external apparatus through the second communication interface unit to display a second image based on the signal, identify third power suppliable to the first external apparatus, based on first power suppliable by the power supply and second power receivable from the second external apparatus through the second communication interface unit, and control the power supply unit to supply the identified third power to the first external apparatus through the first communication interface unit.