OLED Display Panel Synchronized Gate Driving Circuit Boundary Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Full-screen display devices often experience synchronization issues between transparent and non-transparent display areas, leading to split-screen phenomena due to out-of-sync display functions, which affect the overall consistency and user experience.
Innovation Solution
An OLED display panel design that includes both non-transparent and transparent display areas, where the display driving chip and gate driving circuits are configured to output synchronized gate driving signals to ensure that both areas display images synchronously, with the pulse width of the signals for the transparent and non-transparent pixels being substantially the same, and the intersection points of the boundary line aligning with the pixel rows, allowing for synchronized display and reduced split-screen issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate gate driving circuits are used for transparent and non-transparent display areas, then independent control flexibility is improved, but display synchronization between the two areas deteriorates
Solution Approach 1:
A boundary line alignment mechanism is introduced as an intermediary between the transparent and non-transparent display areas. The boundary line is positioned to align with pixel rows in both display areas, serving as a reference that coordinates the display timing and content between the two separately controlled regions, thereby maintaining synchronization while preserving independent control flexibility
Solution Approach 2:
The patent adjusts the pulse width parameter of gate driving signals to be substantially the same for both transparent and non-transparent display areas. By standardizing this critical timing parameter across both display regions, the system achieves synchronized display behavior despite using separate gate driving circuits for independent control
2Stability of the object's composition
If pulse widths of gate driving signals are made substantially the same for both display areas, then display synchronization is improved, but control flexibility for the transparent area deteriorates
Solution Approach 1:
The gate driving signal channels are segmented into separate groups: one group controls the non-transparent display area while another group controls the transparent display area. This segmentation allows each area to receive appropriately tailored control signals while the boundary line alignment and matched pulse widths ensure synchronized display output
3Stability of the object's composition
If boundary line alignment with pixel rows is implemented, then split-screen phenomenon is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The boundary line is pre-positioned during the design and manufacturing stage to align with specific pixel rows in both transparent and non-transparent display areas. This preliminary alignment action ensures that subsequent display operations naturally synchronize at the boundary, reducing split-screen phenomena without requiring complex real-time adjustments
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables synchronous display of non-transparent and transparent areas, reducing or eliminating split-screen phenomena and ensuring consistent light-emitting brightness across the boundary line, thereby enhancing the display consistency and user experience.
Implementation Method 1
The non-transparent display area includes first OLED pixels arranged in an array, and the first OLED pixels arranged in an array being drivable in an active mode; and a transparent display area... The transparent display area includes second OLED pixels arranged in an array. When the second OLED pixels arranged in an array are driven, the transparent display area performs a display function
Data Source
AI summary
A display device and an OLED display panel thereof. The OLED display panel includes a non-transparent display area including first OLED pixels, a transparent display area including second OLED pixels, a display driving chip, a first gate driving circuit group. For a same of image, a pulse width of the second gate driving signal for the second OLED pixels is substantially the same as a pulse width of the first gate driving signal for the first OLED pixels; and intersection points of a boundary line and a pixel row where the first OLED pixels in a specified row are located falls within a range of intersection points of the boundary line and a corresponding pixel row of the second OLED pixels.