Display Panel Layout Separating Black Matrix and Data Lines
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Solution Overview
Problem
Existing display panel structures are limited in improving resolution due to the overlap of data lines and black matrix, which restricts the increase in pixel density and aperture, leading to reduced image clarity.
Innovation Solution
The display panel design includes a first substrate with scan lines and data lines, where the second sub-portions are arranged between adjacent data lines to increase aperture, and the black matrix is positioned to avoid overlap with data lines, allowing for a higher pixel density and improved resolution without compromising aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to improve resolution, then image clarity is improved, but aperture is reduced due to data line overlap with black matrix
Solution Approach 1:
The patent resolves the contradiction by transitioning from a two-dimensional planar arrangement to a three-dimensional stacked structure. Data lines are positioned on the first substrate while the black matrix is positioned on the second substrate, creating vertical separation that eliminates overlap in the projection plane. This dimensional change allows both high pixel density and large aperture to coexist without mutual interference.
Solution Approach 2:
The display panel is segmented into two separate substrates with distinct functional layers. The first substrate carries the data lines and related structures, while the second substrate carries the black matrix and color filters. This segmentation distributes components across different spatial planes, preventing overlap and enabling independent optimization of each substrate's layout for both resolution and aperture.
2Area of stationary object
If data lines are positioned to avoid black matrix overlap, then aperture is improved, but manufacturing complexity increases
Solution Approach 1:
By segmenting the display structure into two separate substrates, the patent simplifies the manufacturing process. Each substrate can be fabricated independently with standard processes, and the substrates are then assembled through lamination. This segmentation avoids the need for complex single-substrate routing and alignment, reducing overall manufacturing complexity while achieving the desired aperture.
3Measurement precision
If pixel density is increased, then resolution is improved, but transmittance is reduced due to increased data line coverage
Solution Approach 1:
The patent employs vertical stacking to separate data lines from the light transmission path. By positioning data lines on the first substrate and black matrix on the second substrate, the design eliminates the need for data lines to traverse the light path, thereby maintaining high transmittance even with increased pixel density. The light passes through the aperture regions without encountering data line obstructions.
Data Source
AI summary
The present disclosure provides a display panel and a display device. The display device includes the display panel. The display panel includes a first substrate and a second substrate opposite to the first substrate. The first substrate includes a first base substrate and a plurality of the data lines arranged on the first base substrate. The second substrate includes a second base substrate. The display panel further includes a black matrix disposed on one of the first base substrate and the second base substrate. An orthographic projection of the data lines on the first base substrate and an orthographic projection of the black matrix on the first base substrate do not overlap.