Display Data Transmission Circuit for Multi-Mode Serial Conversion

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Solution Overview

Problem

Traditional data transmission circuits in display devices require separate control paths for different data transmission modes, increasing complexity due to the need to convert serial data into parallel data with varying bit widths, such as 3-bit and 4-bit modes, without distinguishing between modes.

Innovation Solution

A data transmission circuit comprising a serial-to-parallel conversion circuit, a control signal generating circuit, and a latch circuit that generates mode selection signals to convert serial data into parallel data with corresponding bit widths and control signals, allowing for unified operation across multiple modes without separate control paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate control paths are set for each data transmission mode, then different transmission modes can be supported, but the complexity of the data transmission circuit increases

Engineering Contradiction:
Improvesupport for different transmission modesVSAvoidcomplexity of data transmission circuit
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a unified control path that can handle multiple data transmission modes (1-bit, 3-bit, 4-bit modes) through a single serial-to-parallel conversion circuit. The circuit uses mode setting signals to configure itself for different bit widths, eliminating the need for separate control paths for each mode while maintaining full functionality across all transmission modes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The serial-to-parallel conversion circuit is designed to be dynamically reconfigurable based on mode setting signals. The circuit can change its operational characteristics (bit width configuration) in response to control signals, allowing it to adapt between different transmission modes without requiring physical reconfiguration or separate dedicated circuits for each mode.

Inventive Principle:
Principle #15Dynamics

2Reliability

If dedicated control paths are implemented for each mode, then mode-specific control requirements are met, but the circuit structure becomes more complex

Engineering Contradiction:
Improvemode-specific control accuracyVSAvoidcircuit structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple mode-specific control functions into a single unified control path. The serial-to-parallel conversion circuit integrates the functionality of what would otherwise require separate control paths for 1-bit, 3-bit, and 4-bit modes, while the control signal generating circuit produces mode-appropriate control signals through a single unified mechanism rather than through multiple independent control paths.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If multiple separate control paths are used, then each mode can be controlled independently, but the number of control signals increases

Engineering Contradiction:
Improveindependent mode controlVSAvoidnumber of control signals
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces mode setting signals as intermediaries that convey mode information from the control signal generating circuit to the serial-to-parallel conversion circuit. This intermediary mechanism allows the unified control path to independently control different modes by interpreting the mode setting signals, reducing the need for multiple independent control signal sets while maintaining independent mode controllability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11132974B2Data transmission circuit, display device and data transmission method
Publication Date: 2021.09.28 BEIJING BOE TECH DEV CO LTD
  • US11132974B2 patent drawing
  • US11132974B2 patent drawing
  • US11132974B2 patent drawing

AI summary

The embodiments of the present disclosure provide a data transmission circuit, a display device and a data transmission method. The data transmission circuit includes a serial-to-parallel conversion circuit configured to receive serial data and a mode setting signal, generate a mode selection signal according to the mode setting signal, and convert the serial data into parallel data with a corresponding bit width according to the mode selection signal; a control signal generating circuit configured to generate a control signal based on the mode setting signal; and a latch circuit connected to the serial-to-parallel conversion circuit and the control signal generating circuit, and being configured to receive the parallel data from the serial-to-parallel conversion circuit and the control signal from the control signal generating circuit, and latch and output the received parallel data under the control of the control signal.