Addressed Drive Chip Layout for Fewer Display Data Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display apparatuses face challenges in reducing the number of data lines between the controller and the drive circuit, which increases manufacturing difficulty and cost due to the use of flexible flat cables (FFCs) for connecting numerous drive chips.
Innovation Solution
Implementing drive chips with preset marking information, such as physical addresses or address marking circuits, allowing controllers to communicate with multiple drive chips using fewer data lines by recognizing and addressing individual drive chips based on their unique identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the number of data lines is reduced, then manufacturing cost and complexity decrease, but data transmission efficiency and control precision deteriorate
Solution Approach 1:
The drive circuit is segmented into multiple drive units, each with unique marking information. The controller segments data transmission by sending data to specific drive units based on their addresses, enabling parallel data transmission across multiple segments simultaneously, thus maintaining high transmission efficiency while reducing the total number of data lines required.
Solution Approach 2:
The patent introduces a new dimension of address-based routing by adding marking information to drive chips. This allows data to be transmitted along the existing data line to the correct drive unit through address matching, eliminating the need for separate dedicated data lines to each drive chip and solving the contradiction between line reduction and transmission efficiency.
2Productivity
If preset marking information is added to drive chips, then data transmission efficiency improves, but device complexity increases
Solution Approach 1:
The marking information in the drive chip serves multiple functions: it acts as an address identifier for data routing, enables the drive chip to be addressed through existing data lines, and allows for scalable system configuration. This multi-functionality justifies the added complexity by eliminating the need for separate address lines or identification circuits.
3Manufacturing precision
If drive units are divided into multiple drive groups, then control precision improves, but manufacturing complexity increases
Solution Approach 1:
The backlight system is segmented into multiple drive units with unique marking information, allowing independent control of different light bead groups. This segmentation enables precise local dimming and black frame insertion while maintaining uniform manufacturing processes, as each drive unit follows the same design template and can be manufactured independently.
Data Source
AI summary
The present application provides a drive chip, a drive circuit, a display apparatus, and a data communication method; where preset marking information of the drive chip can be set in the drive chip; the drive chip can be connected to at least one controller and at least one light bead; the at least one controller can be configured to send drive data to the drive chip based on the preset marking information of the drive chip, where the preset marking information can include an address of the drive chip; the drive chip can be electrically connected to the at least one light bead and can be configured to drive the at least one light bead according to the drive data.