Display Panel Marking Codes for Identification
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Solution Overview
Problem
Current display apparatuses lack an efficient method for easily acquiring identification information about the display panel and driving chip, which is crucial for manufacturing and maintenance processes.
Innovation Solution
Incorporating first and second marking codes on the driving chip and display panel substrates, respectively, with the driving chip's rear surface and display panel's second surface featuring these codes, allowing for easy identification using a code reader, and the use of dummy layers to minimize step differences and enhance readability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If marking codes are placed on the driving chip and display panel, then identification information can be easily acquired, but the manufacturing process becomes more complex due to additional marking steps
Solution Approach 1:
The marking codes are formed on the driving chip and display panel during the manufacturing process, before the products are assembled and put into use. This preliminary action ensures that identification information is already available when needed, eliminating the need for additional marking steps after assembly.
Solution Approach 2:
The marking code formation process is merged with the existing manufacturing processes of the driving chip and display panel. By integrating the marking step into the already-established production lines, the additional complexity is minimized while still achieving the goal of easy identification information acquisition.
2Area of stationary object
If the driving chip is mounted on the lower substrate with rear surface adjacent, then space is optimized, but accessing marking codes becomes more difficult
Solution Approach 1:
The marking codes are positioned on different surfaces (rear surface of driving chip, second surface of lower substrate) rather than all on the same accessible surface. This spatial distribution in multiple dimensions allows code readers to access the codes from different angles and positions, maintaining accessibility even when the driving chip is mounted with its rear surface adjacent to the lower substrate.
Solution Approach 2:
The identification system is segmented into multiple marking codes placed on different components (driving chip and display panel) and different surfaces. This segmentation ensures that not all codes are blocked when the driving chip is mounted, as at least some codes remain accessible from different directions.
3Area of stationary object
If multiple marking codes are placed close together, then space is saved, but code reading accuracy decreases due to overlap
Solution Approach 1:
Different regions of the driving chip and display panel are assigned specific marking codes with distinct local characteristics. The marking codes are positioned in specific locations (edge areas of driving chip, second surface of lower substrate) with sufficient local spacing to ensure clear differentiation and accurate reading by code readers, while still optimizing overall space utilization.
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
Facilitates the easy acquisition of identification information about both the driving chip and display panel, improving manufacturing efficiency and maintenance processes by enabling simultaneous and clear reading of the codes.
Implementation Method 1
a code reader reading the first and second marking codes
Data Source
AI summary
A display apparatus is provided including a display panel displaying an image, and a driving chip including a front surface and a rear surface provided with a first marking code, the driving chip being electrically connected with the display panel. The display panel includes an upper substrate, and a lower substrate located facing the upper substrate to include a second marking code, and including a first surface and a second surface facing the first surface. The driving chip is located on the second surface such that a rear surface thereof is closer to the second surface than to the front surface thereof, and wherein the second marking code is provided on the second surface.