Display Panel Pixel Region Oversizing for Narrow Frame Alignment
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Solution Overview
Problem
The manufacturing process of display panels often results in black edges due to alignment errors during cell-assembling, which are not conducive to the narrow frame design and affect the display effect, as the frames of the package substrate can cover parts of the display region, leading to unused pixel units and a less aesthetically pleasing appearance.
Innovation Solution
A display panel design where the length of the pixel region on the display substrate exceeds the distance between the frames of the package substrate, ensuring that the pixel units completely fill the light transmission region without being shielded, and a method to determine the display region by lighting up pixel units and detecting which ones are shielded, allowing only the necessary pixel units to be used for displaying, thereby eliminating black edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the pixel region length is increased to exceed the distance between frames, then the display region can be fully utilized without black edges, but the alignment precision requirement during cell-assembling increases
Solution Approach 1:
The patent applies preliminary action by pre-defining the pixel region size to be larger than the frame distance before assembly. This allows the display substrate to inherently cover the entire light transmission region without requiring high-precision alignment during the cell-assembling process, thus resolving the contradiction between maximizing display area and maintaining alignment precision.
2Shape
If the pixel region completely covers the light transmission region, then black edges are eliminated and narrow frame design is achieved, but the device complexity increases due to additional determination methods
Solution Approach 1:
The patent applies self-service by enabling the display system to automatically determine the display region through detection methods. The system self-identifies which pixel units are within the display region by detecting whether they are shielded by frames, eliminating the need for manual configuration or complex external control systems, thus achieving the frameless shape without excessive device complexity.
3Productivity
If all pixel units are used for display, then the display efficiency is improved, but the difficulty of detecting and measuring the display region boundary increases
Solution Approach 1:
The patent applies color changes by utilizing the light emission properties of pixel units to detect display region boundaries. By lighting up pixel units and observing whether their light is shielded by frames, the system can identify the boundary between display and non-display regions. This optical detection method simplifies the measurement process while ensuring all pixel units within the display region are utilized, thus improving display efficiency without excessive detection difficulty.
Data Source
AI summary
Embodiments of the present disclosure provides a display panel, a display device and a display method. The display panel includes a display substrate and a package substrate, the display substrate includes a pixel region, the package substrate includes frames and a light transmission region surrounded by the frames, wherein a plurality of pixel units are disposed in the pixel region of the display substrate; a length L of the pixel region of the display substrate is greater than a distance D between the frames of the package substrate at least in a first direction; and an orthographic projection of the pixel region on the display substrate at least partially covers an orthographic projection of the light transmission region on the display substrate.