Gate-in-Panel Display Layout for Zero-Bezel Transparency Uniformity
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Solution Overview
Problem
Display apparatuses with gate-in-panel structures face issues of increased bezel width due to the placement of gate driving circuits, leading to size and transparency deviations between transmissive parts, which result in image quality defects like line-shaped stripes and hinder the achievement of zero-bezel or nearly zero-bezel designs.
Innovation Solution
The implementation of a display apparatus with a substrate having a display area where gate driving circuits are integrated, featuring branch circuits that supply scan signals to pixels, and strategically placed lines between adjacent pixels, ensuring uniformity and minimizing deviations in transmittance or transparency, thereby reducing image quality defects and achieving a zero-bezel or nearly zero-bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If gate driving circuits are disposed in the non-display region, then the circuit configuration is simplified and manufacturing cost is decreased, but the bezel width increases
Solution Approach 1:
The gate driving circuit is moved from the traditional non-display region (horizontal dimension) to the vertical dimension by extending gate lines beyond the display area. This dimensional shift allows the circuit to be integrated without increasing bezel width, as the gate driving circuit now occupies space in the vertical extension rather than horizontal expansion.
2Ease of manufacture
If gate driving circuits are disposed in the non-display region, then manufacturing cost is decreased, but transparency uniformity deteriorates
Solution Approach 1:
Different regions of the gate line are designed with different properties: the portion within the display area maintains high transparency for optimal viewing, while the extended portion outside the display area can have different characteristics suitable for circuit functionality. This local differentiation allows transparency uniformity in the display region while accommodating the gate driving circuit externally.
Solution Approach 2:
By extending gate lines in the vertical dimension beyond the display area, the circuit components are relocated to a different spatial dimension where they do not interfere with the transparency requirements of the display region, thus maintaining transparency uniformity while reducing manufacturing cost.
3Length of stationary object
If gate driving circuits are disposed in the non-display region, then bezel width increases, but image quality defects occur due to size deviation between transmissive parts
Solution Approach 1:
The gate driving circuit is relocated to the vertical dimension by extending gate lines beyond the display area boundaries. This dimensional relocation eliminates the need for increased bezel width while preventing size deviations in transmissive parts, as the circuit components no longer occupy horizontal space that would affect the uniformity of the display region.
Data Source
AI summary
A display apparatus can include a substrate having a display area, where the display area includes a plurality of pixels disposed along a first direction and a second direction intersecting with the first direction. The display apparatus can further include a gate driving circuit disposed at the display area and including a plurality of branch circuits for supplying a scan signal to the plurality of pixels, and a plurality of lines disposed at a region between two pixels adjacent to each other along the first direction, and extending in the second direction and selectively connected to the plurality of branch circuits. The number of lines disposed at a region between two pixels adjacent to each other along the first direction is the same.