Display Panel Vertical Control Substrate Layout for Lower Power
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Solution Overview
Problem
Existing display devices face challenges in optimizing the connection and integration of substrates including display panels and controllers, leading to limitations in design freedom and increased power consumption.
Innovation Solution
A display device design that integrates a substrate with a display panel, a data driver, a level shifter, and a controller, where the controller is attached in a vertical direction through first pads, and optionally includes a gate driver, with components like the data driver and level shifter configured as one integrated circuit, and the substrate featuring a display area and non-display area for these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the controller and data driver are integrated on a separate control substrate, then design freedom is improved and power consumption is reduced, but the connection complexity between substrates increases
Solution Approach 1:
The display device is divided into multiple functional substrates: a display substrate containing the display panel and gate driver, and a separate control substrate containing the controller and data driver. This segmentation allows independent optimization of each substrate while reducing overall system complexity and power consumption.
Solution Approach 2:
Pads are introduced as intermediary connection elements between the display substrate and control substrate. These pads facilitate electrical connection through the vertical direction, enabling signal transmission between substrates while simplifying the manufacturing process.
2Adaptability or versatility
If components are arranged on multiple side surfaces of the display panel, then design freedom is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The control substrate is positioned in the vertical direction (third dimension) relative to the display panel, rather than arranging all components on the same plane. This dimensional transition provides greater arrangement flexibility while reducing the impact of positioning precision requirements.
Solution Approach 2:
By segmenting components across different substrates positioned at different spatial locations (display substrate for display panel and gate driver, control substrate for controller and data driver), the system achieves flexible component arrangement without stringent positioning precision requirements.
Data Source
AI summary
A display device includes: a substrate including a display panel configured to display an image corresponding to image data, a data driver configured to apply a plurality of data signals corresponding to the image data to the display panel, a level shifter configured to change a voltage level of the image data, and first pads; and a control substrate including a controller configured to output the image data to the level shifter, and attached to the substrate in a vertical direction through the first pads.