Display Panel Subpixel Grouping for Single-Layer COF Cost Reduction
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Solution Overview
Problem
The high cost of OLED display devices due to the use of double-layer Chip On Film (COF) required for high-resolution displays, as single-layer COF cannot handle the large number of data lines effectively.
Innovation Solution
A display panel design where subpixels in each row are grouped and connected to a single data line, reducing the number of data lines needed by having each group of subpixels connected to multiple gate lines, allowing for efficient data signal input through a single data line, enabling the use of a single-layer COF.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-layer COF is used to bind IC with OLED display panel, then the cost is reduced, but the number of data lines cannot handle high-resolution displays effectively
Solution Approach 1:
The patent divides subpixels in each row into multiple groups (m groups), where each group shares a common data line. This segmentation allows multiple subpixels to be controlled through fewer data lines, reducing the total number of data lines required and enabling the use of single-layer COF while maintaining high-resolution display capability.
Solution Approach 2:
The patent merges the data line connections by having n subpixels in each group share a single data line. This combining approach reduces the overall number of data lines from what would be required if each subpixel had its own dedicated data line, thereby reducing cost and enabling single-layer COF implementation.
2Manufacturing precision
If each subpixel is connected to its own data line to maintain display quality, then the display quality is maintained, but the number of data lines increases requiring double-layer COF
Solution Approach 1:
By segmenting subpixels into groups that share data lines, the patent reduces device complexity while maintaining display quality through coordinated control of grouped subpixels via common data lines and individual gate lines.
Solution Approach 2:
The patent makes data lines universal by having each data line serve multiple subpixels within a group. This multi-functionality allows fewer data lines to accomplish what would otherwise require more dedicated lines, reducing complexity while preserving display quality.
3Ease of manufacture
If the number of data lines is reduced to use single-layer COF, then the cost is lowered, but efficient data signal input must be achieved through alternative connection methods
Solution Approach 1:
The patent segments the control approach by using individual gate lines for each subpixel while grouping data line connections. This allows efficient data signal input through the combination of shared data lines and dedicated gate lines, maintaining ease of operation despite reduced data line count.
Solution Approach 2:
The patent introduces gate lines as intermediaries that control individual subpixels within groups sharing common data lines. This intermediary mechanism enables precise control and efficient data signal input even though fewer data lines are used, resolving the contradiction between cost reduction and operational efficiency.
Data Source
AI summary
A display panel and a display method thereof and a display device are disclosed. The display panel comprises: a plurality of first gate lines and data lines which are intersected and insulated with each other; the display panel further comprises a plurality of subpixels; wherein a plurality of subpixels located in the same row are divided into m groups of pixels, each of the groups of pixels comprising n subpixels; the n subpixels in the same group of pixels are respectively connected to n first gate lines one by one, and the n subpixels are connected to the same data line; wherein m>1, n≥2, and m and n are positive integers.