Liquid Crystal Display Panel Identification via Array Substrate Patterning
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Solution Overview
Problem
The existing methods for marking panel identifications on large quantities of small-sized liquid crystal display panels are inefficient, consuming significant productive capacity and space, leading to difficulties in tracing errors in later fabrication procedures.
Innovation Solution
A method involving the creation of identification patterns on the array substrate's peripheral regions and distinct color filter arrangements on the color filter substrate, allowing for efficient differentiation of unit display panels through a combination of patterning processes and color filter sequences, enabling effective cell-assembling and reducing the need for extensive marking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If laser marking is used to mark panel identifications on each unit display panel, then each panel can be distinguished, but the productive capacity of the product line is significantly occupied and the marking process becomes troublesome when there are hundreds of panels on one motherboard glass
Solution Approach 1:
The patent combines the panel identification marking with the existing film patterning process by incorporating identification patterns into the film pattern layer during the patterning process with mask. This merging eliminates the need for separate laser marking operations, maintaining panel distinguishability while significantly improving productivity by reducing the number of discrete marking steps required for hundreds of panels on a single motherboard glass
Solution Approach 2:
The identification patterns are formed in advance during the film patterning process before the panels are cut from the motherboard glass. This preliminary action ensures that all panel identifications are marked simultaneously as part of the manufacturing process rather than requiring individual marking operations later, thereby preserving productive capacity while ensuring accurate identification
2Reliability
If traditional laser marking is used for small-sized display panels, then panel identifications can be marked, but the peripheral region is becoming smaller and smaller and panel identifications per se will occupy certain space
Solution Approach 1:
The identification patterns are integrated into the film pattern layer which is already present in the peripheral regions of each panel. By utilizing the existing film structure and its inherent properties, the patent marks panels in a manner that does not require additional peripheral space, as the identification is embedded within the existing film pattern rather than adding separate marking elements that would consume valuable peripheral area
Data Source
AI summary
A liquid crystal display panel and a manufacturing method thereof, and a motherboard of a liquid crystal display panel are provided. According to the embodiments of the present disclosure, in one aspect, identification patterns are formed in different unit display panel regions of the same exposure region of a motherboard of an array substrate by designing a mask of the array substrate of a liquid crystal display panel, to distinguish the unit display panels exposed in the same batch; in another aspect, the unit display panels exposed in different batches are distinguished through the arrangement modes of the color filters in the unit display panel regions of a motherboard of a color filter substrate, to realize marking of all unit display panels on a same motherboard glass.