Timing Controller Brightness Module Synchronization

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Solution Overview

Problem

In thin film transistor display apparatuses, abnormal images can occur when the timing controller's power-on time is prolonged due to instability, leading to premature activation of the brightness adjusting module before the timing controller's preparations are complete.

Innovation Solution

A display apparatus and driving method where the brightness adjusting module is connected to the timing controller using a spring and probe, with the timing controller controlling the module's state change from off to on only after completing its preparations, ensuring stable voltage conditions are met.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power-on time of the timing controller is prolonged to ensure stable voltages, then the reliability of the display apparatus is improved, but the brightness adjusting module may be turned on prematurely causing abnormal images

Engineering Contradiction:

Improvestability of timing controller voltagesVSAvoidabnormal images

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements a feedback mechanism where the timing controller monitors its own voltage stability status and sends a control signal to the brightness adjusting module only when voltages are stable. The module receives feedback about the readiness status, ensuring it activates at the correct moment rather than based on fixed timing, thus preventing abnormal images while maintaining reliability

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The timing controller performs preliminary voltage stabilization before activating the brightness adjusting module. The controller prepares the electrical environment in advance, ensuring all voltages are stable before sending the activation signal, which prevents premature activation that would cause abnormal images

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If the power-on time is extended to allow complete data reading and voltage stabilization, then image quality is improved, but the overall startup time increases

Engineering Contradiction:

Improveimage qualityVSAvoidstartup time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system uses periodic monitoring of voltage stability rather than a fixed extended delay. The timing controller continuously checks voltage status at regular intervals and activates the brightness module as soon as stability criteria are met, converting a static time delay into a dynamic periodic check that reduces unnecessary waiting time while ensuring image quality

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent changes the parameter from fixed time duration to voltage stability threshold. Instead of waiting for a predetermined time period, the system monitors voltage parameters dynamically and activates when they meet stability criteria, allowing flexible adjustment of the activation point to balance image quality and startup time

Inventive Principle:

Principle #35Parameter changes

3Productivity

If the brightness adjusting module is turned on immediately after power supply, then the productivity of the display apparatus is improved, but abnormal images may occur due to unstable timing controller voltages

Engineering Contradiction:

Improvestartup speedVSAvoidimage stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The timing controller provides real-time feedback about voltage stability to control the activation of the brightness adjusting module. This feedback mechanism ensures the module only activates when voltages are stable, preventing image abnormalities while maintaining the fastest possible startup time based on actual readiness rather than fixed delays

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system transitions from a static fixed-time delay approach to a dynamic readiness-based activation. The timing controller continuously assesses its own readiness status and dynamically determines the optimal activation moment, allowing the system to adapt to actual voltage stabilization speed rather than following a predetermined timeline

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10825402B2Display apparatus and driving method therefor

Publication Date: 2020.11.03 HKC CORP LTD

AI summary

This application provides a display apparatus and a driving method therefor. The display apparatus includes: a storage module, configured to provide display data; a timing controller, configured to: read the display data, convert the display data to image data, and output the image data and a control signal; a brightness adjusting module, configured to adjust a working state of the brightness adjusting module according to the control signal; and a display module, configured to receive the image data output by the timing controller and present a corresponding image, where after finishing configuring the image data of the display module and receiving a feedback signal sent by the display module, the timing controller controls the brightness adjusting module to be turned on, and the brightness adjusting module is connected to the timing controller by using a spring and a probe of a fan-out area.