Display Panel Memory for Streamlined Inspection
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Solution Overview
Problem
Current display device production processes require redundant inspections, increasing production time and costs due to the need for separate panel and module inspections, which are similar in scope and require the use of redundant production systems to provide inspection results from the panel process to the module process.
Innovation Solution
Incorporating a panel information memory in the non-display area of the display device to store unique attribute information, such as color coordinates, viewing angle color sense, and luminance efficiency, which is determined during the panel inspection process and used in the module process, allowing for streamlined production by eliminating the need for repetitive inspections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate panel and module inspections are conducted, then inspection thoroughness is improved, but production time increases
Solution Approach 1:
The patent combines the panel inspection and module inspection processes into a single integrated inspection system. The inspection device is configured to perform both panel-level and module-level inspections simultaneously or in sequence without requiring separate redundant inspection systems, thereby maintaining thoroughness while reducing production time
Solution Approach 2:
The patent implements preliminary panel inspection before module assembly, with inspection results being stored and utilized during the module inspection phase. This preliminary action allows the module inspection to focus only on critical areas or potential defects identified earlier, reducing the overall inspection time while maintaining comprehensive coverage
2Reliability
If redundant production systems are used for panel and module inspections, then inspection capability is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal inspection device that can perform multiple inspection functions for both panels and modules. The device includes configurable inspection units that can be adapted to inspect different components at different stages of production, eliminating the need for separate dedicated inspection systems and reducing overall system complexity
Solution Approach 2:
The patent introduces an intermediary data management system that bridges panel inspection results and module inspection requirements. This intermediary layer processes, stores, and transmits inspection data between different production stages, allowing a single inspection system to serve multiple purposes without requiring complex direct integration between separate systems
3Productivity
If panel inspection results are transferred to module process, then production efficiency is improved, but information transfer complexity increases
Solution Approach 1:
The patent implements a self-service information transfer mechanism where the inspection device automatically generates, stores, and transmits panel inspection results to the module production system without requiring manual intervention. The system includes automated data interfaces that seamlessly transfer relevant inspection data, reducing information transfer complexity while improving production efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the efficient transfer of panel inspection results to the module process, reducing production time and costs by integrating attribute information directly into the display device's memory, thus facilitating faster production without the need for redundant inspections.
Implementation Method 1
A selection signal turning on the transistor can be input to the first input terminal, the same voltage as the ground and a voltage higher than a breakdown voltage of the resistive element can be input to the second input terminal, and a bit value can be stored in each of the plurality of memory cells
Data Source
AI summary
Display devices are disclosed. In one aspect, the display device includes a display panel having a display area including a plurality of pixels and a non-display area surrounding the display area. The display panel includes a plurality of gate lines and a plurality of data lines, and the gate and data lines are electrically connected to the pixels. The display device also includes a driving integrated circuit (IC) formed over the non-display area and configured to drive the pixels and a panel information memory formed over the non-display area and configured to store attribute information of the display panel.