Serial-Parallel Driving Module Without a Display Chip

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Solution Overview

Problem

Display devices require a display chip to process signals, leading to high power consumption and increased costs.

Innovation Solution

A driving module with a serial-parallel conversion circuit and data providing circuit that converts serial input signals into parallel output signals, including mode indication information and common electrode voltage signals, allowing display operation without a display chip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a display chip is used to process signals, then display functionality is achieved, but power consumption increases and cost increases

Engineering Contradiction:
Improvedisplay functionalityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts and eliminates the display chip from the system by implementing a driving module that directly processes serial input signals and converts them to parallel output signals for the display panel, thereby achieving display functionality without requiring a separate display chip, which reduces both power consumption and cost

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a display chip is used to process signals, then display functionality is achieved, but device complexity and cost increase

Engineering Contradiction:
Improvedisplay functionalityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the display chip component entirely and replaces it with an integrated driving module that performs signal processing, serial-parallel conversion, and data output functions, thereby simplifying the overall device architecture and reducing complexity while maintaining display functionality

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges multiple functions including serial signal processing, parallel signal generation, mode indication handling, and data output into a single integrated driving module, eliminating the need for separate display chip and reducing device complexity

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12475833B2Driving module and display device
Publication Date: 2025.11.18 BEIJING BOE TECH DEV CO LTD
  • US12475833B2 patent drawing
  • US12475833B2 patent drawing
  • US12475833B2 patent drawing

AI summary

The present disclosure provides a driving module and a display device. The driving module includes a serial-parallel conversion circuit and a data providing circuit, the serial-parallel conversion circuit is configured to convert a serial input signal into a parallel output signal and generate a transmission control signal and a common electrode voltage signal in accordance with mode indication information carried by the parallel output signal, and the parallel output signal carries the mode indication information and input display data; and the data providing circuit is configured to convert the input display data into output display data and transmit the output display data to a corresponding data line under the control of the transmission control signal. According to the embodiments of the present disclosure, it is able to achieve display through relying on serial input signals and other signals provided by a system without a display chip.