Source Driver Mode Switching via Digital Mapping and Odd-Number Polarity

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional source drivers require multiple switching operations to adjust between operational modes, leading to less flexible applications and hardware changes, as they need to determine operational modes to adjust connections of adjacent transmission channels for different polarization outputs.

Innovation Solution

A source driver utilizing a mapping operation and an odd-number switching operation to switch between two operational modes, where each transmission channel includes a register module, voltage level transformer, and polarization digital-to-analog converter, allowing for different polarization outputs without altering hardware connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional source drivers use multiple switching operations to adjust between operational modes, then different polarization outputs can be achieved, but hardware connections must be changed and operational complexity increases

Engineering Contradiction:

Improveoperational mode switching capabilityVSAvoidhardware connection adjustment complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical switching operations with a mapping operation that digitally remaps display information to transmission channels. Instead of physically switching hardware connections to change operational modes, the system uses a lookup table or algorithm to map pixel data to the correct channels based on the desired polarization mode, eliminating the need for hardware reconfiguration

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operational parameter from hardware connection configuration to software-based mapping parameters. By modifying the mapping relationship between display information and transmission channels rather than changing physical connections, the system achieves mode switching through parameter adjustment alone, reducing hardware complexity

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If conventional source drivers adjust connections of adjacent transmission channels for different polarization outputs, then two operational modes can be achieved, but the number of switching operations increases

Engineering Contradiction:

Improvepolarization output flexibilityVSAvoidswitching operation time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent performs preliminary mapping of display information to transmission channels before actual output. The mapping operation pre-determines which channels receive which pixel data based on the desired polarization mode, eliminating the need for time-consuming switching operations during runtime. The system prepares the mapping relationships in advance, so mode changes only require updating mapping parameters rather than executing multiple switching sequences

Inventive Principle:

Principle #10Preliminary action

3Reliability

If conventional source drivers require determination of operational modes before switching, then mode-specific output can be achieved, but operational complexity increases

Engineering Contradiction:

Improvemode-specific output accuracyVSAvoidoperational mode switching ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical process of determining and switching operational modes with a digital mapping approach. Instead of requiring the system to determine which mode is needed and then execute switching sequences, the mapping operation directly computes the correct channel assignments based on the input parameters, making the operation more intuitive and easier to control

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The mapping operation automatically determines the correct transmission channel assignments based on the display information and desired polarization mode. The system self-adjusts the mapping relationships without requiring external control logic to determine operational modes and execute switching sequences, simplifying the operational process

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9875700B2Source driver and driving method thereof

Publication Date: 2018.01.23 NOVATEK MICROELECTRONICS CORP

AI summary

A source driver utilized for a display device and switching between two operational modes includes a reception module for receiving a plurality of display information and a plurality of transmission channels. Each transmission channel includes a register module for receiving one of the plurality of display information; a voltage level transformer for determining a voltage level of the one of display information; a polarization digital-to-analog converter for processing a digital-to-analog operation for the voltage level of the one display information; and an output module for outputting a plurality of voltage levels of the display information. The voltage levels of every two adjacent transmission channels include different polarization of voltage levels, and the output module processes an odd-number switching operation before outputting the plurality of voltage levels.