LED Display Row Activation With Column Data Light Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display technologies using LED light sources face inefficiencies in controlling and managing light sources, particularly in terms of power management and data signal distribution, which affect display performance and flexibility.
Innovation Solution
A display device and control algorithm that employs a control circuit to apply a reference voltage to power supply lines, activating all light sources in a row and controlling their emission based on data signals received via data lines, optimizing power and data signal distribution for improved display operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional passive matrix method with external driver IC is used, then light source control is achieved, but device complexity and power management efficiency deteriorate
Solution Approach 1:
The patent extracts the driver IC functionality from external components and integrates it directly into the display panel structure. Each light source element is equipped with its own driver circuit, eliminating the need for separate external driver ICs and reducing overall device complexity while maintaining control reliability.
Solution Approach 2:
The display panel structure is designed to be self-controlled, where each light source element has integrated driver circuits that autonomously manage power supply and data signals. This self-service approach eliminates dependency on external control components, simplifying the overall system architecture.
2Productivity
If conventional sequential control method is used, then power management is achieved, but display performance and flexibility deteriorate
Solution Approach 1:
The patent segments the power supply and data signal transmission into independent channels for each light source element. This segmentation allows simultaneous control of multiple elements without sequential delays, improving display performance while enabling efficient power management through selective activation of individual elements.
Solution Approach 2:
The patent transitions from sequential one-dimensional control to parallel multi-dimensional control by applying reference voltages across multiple power supply lines simultaneously. This dimensional expansion enables concurrent operation of multiple light source elements, enhancing display performance while optimizing power distribution.
3Ease of operation
If reference voltage is applied to power supply line, then all light sources in row are activated, but power consumption increases
Solution Approach 1:
The patent applies local quality control by enabling selective activation of specific light source elements within a row through localized data signal transmission. While reference voltage activates the row, individual elements can be controlled to emit light only when needed, reducing overall power consumption while maintaining ease of operation.
Solution Approach 2:
The patent implements periodic control where light sources are activated in synchronized rows at specific time intervals. By coordinating reference voltage application with periodic data signal transmission, the system achieves easy row-wise activation control while managing power consumption through time-multiplexed operation.
Data Source
AI summary
A display device and an operating method thereof are disclosed. A display device, according to at least one of various embodiments of the present disclosure, may comprise a display panel including a plurality of light sources and a driver IC connected to the plurality of light sources; and a control circuit that supplies, to the driver IC, power voltage and a data signal through at least one power supply line and data line, respectively, according to an input signal, wherein the control circuit may apply a reference voltage to the at least one power supply line to activate all of the light sources in a row connected through the corresponding power supply line to which the reference voltage has been applied, and may control each of the activated light sources to emit light according to data inputted through each data line in units of columns.