LED Display Panel In-Display Shift Registers for Narrow Frames
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Solution Overview
Problem
The conventional driver circuit arrangement on the left and right frames of LED display panels impedes the development of narrow frames, which is inconsistent with the trend towards thinner bezels.
Innovation Solution
The driver circuit is integrated into the display area by positioning shift register circuits between adjacent light-emitting element rows, allowing for a more compact design that reduces the frame width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the driver circuit is located on the left frame and right frame, then the driver circuit can be easily arranged and connected, but the frame width increases which contradicts the narrow frame development trend
Solution Approach 1:
The driver circuit is moved from the lateral frame areas (left and right) to the lower frame area, utilizing an underutilized spatial dimension. This dimensional relocation allows the driver circuit to be positioned within the display area without increasing the overall frame width, thereby resolving the contradiction between narrow frame requirement and driver circuit arrangement.
Solution Approach 2:
The lower frame area, which traditionally serves as a structural boundary, is repurposed to host the driver circuit functionality. This multi-functional utilization of the lower frame space allows it to serve both as a structural element and as a housing for the driver circuit, eliminating the need for separate lateral frame spaces.
2Length of stationary object
If the driver circuit is integrated into the display area, then the frame width is reduced, but the arrangement of shift register circuits between light-emitting element rows increases manufacturing complexity
Solution Approach 1:
The driver circuit is segmented into multiple shift register circuits, with each shift register circuit positioned between adjacent light-emitting element rows. This segmentation allows for modular manufacturing and assembly, where each segment can be independently positioned and connected, thereby managing the manufacturing precision requirements more effectively.
Solution Approach 2:
The shift register circuits positioned between light-emitting element rows act as intermediary elements that facilitate the connection and signal transmission between different parts of the display. This intermediary arrangement simplifies the overall wiring and connection complexity, making the integration into the display area more manageable.
3Area of stationary object
If multiple driver circuits are arranged along the first direction, then the display area can be fully utilized, but the number of driver circuits increases device complexity
Solution Approach 1:
Multiple driver circuits are merged into a single integrated driver circuit located in the lower frame area. This merged driver circuit incorporates multiple shift register circuits that can drive different rows of light-emitting elements, thereby reducing the total number of separate driver circuits while still achieving full display area utilization.
Solution Approach 2:
The integrated driver circuit in the lower frame area is designed with multi-functionality, where a single driver circuit can control and drive multiple rows of light-emitting elements through its internal shift register circuits. This universal design reduces device complexity by eliminating the need for multiple separate driver circuits.
Data Source
AI summary
Disclosed are a display panel and a display device. The display panel includes a display area, a plurality of light-emitting elements located in the display area, and at least one driver circuit located in the display area; the plurality of light-emitting elements includes a plurality of light-emitting element rows extend in a first direction and arranged in a second direction, where the first direction and the second direction intersect; the at least one driver circuit includes a plurality of shift register circuits disposed in cascade and a shift register circuit of the plurality of shift register circuits is located between adjacent light-emitting element rows of the plurality of light-emitting element rows.