Display Device Pixel Electrode Arrangement for Luminance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional liquid crystal display (LCD) technologies face challenges in optimizing pixel electrode configurations and light emission areas to enhance luminance and reduce dark portions, leading to suboptimal display performance.
Innovation Solution
The proposed display device incorporates a specific arrangement of gate lines, data lines, switching elements, and pixel electrodes, including a light blocking layer and reflective electrodes, with overlapping structures and separate color filters to minimize vertical height differences and maximize luminance, particularly by placing switching elements of adjacent pixels in a common light emission area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pixel electrodes are arranged with separate switching elements for each pixel, then each pixel can be independently controlled, but vertical height differences and dark portions increase, reducing luminance
Solution Approach 1:
The patent merges the switching element of one pixel with the light emission area of an adjacent pixel. Specifically, the second switching element is positioned within the first light emission area, allowing it to share the light emission space with the first pixel. This merging eliminates vertical height differences between pixels and reduces dark portions, thereby improving overall luminance while maintaining independent pixel control through the gate line and data line connections.
2Reliability
If data lines are positioned to connect to each pixel electrode, then electrical connection is achieved, but overlapping with pixel electrodes in light emission areas creates interference and reduces display quality
Solution Approach 1:
The patent applies local quality by positioning the second data line to overlap with the first pixel electrode specifically in the first light emission area, while the first data line overlaps with the second pixel electrode in the second light emission area. This localized arrangement ensures that data lines are positioned optimally for electrical connection in specific regions without causing interference in other areas, thereby maintaining display quality while achieving reliable electrical connections.
3Manufacturing precision
If light blocking layer is used to define light emission areas, then precise light emission control is achieved, but it increases the complexity of the device structure
Solution Approach 1:
The patent makes the light blocking layer multi-functional by using it not only to define the light emission areas of the pixels but also to serve as a structural support for positioning the switching elements and data lines. The light blocking layer is positioned to define both the first light emission area and the second light emission area, and the second switching element is positioned within the first light emission area defined by this same layer. This universal use of the light blocking layer reduces the need for additional structural elements, thereby maintaining manufacturing precision while reducing overall device complexity.
Data Source
AI summary
A display device includes a first substrate spaced from a second substrate, a gate line, a first data line, and a second data line on the first substrate, a first switch connected to the gate line and the first data line, a second switch connected to the gate line and the second data line, a first pixel electrode connected to the first switch, and a second pixel electrode connected to the second switch. The second pixel electrode is adjacent to the first pixel electrode. The first gate line extends in a first direction. A first light emission area positioned corresponding to the first pixel electrode and a second light emission area positioned corresponding to the second pixel electrode are adjacent to each other in the first direction. The second data line and the second switch are in the first light emission area.