Light Control Panel Layout for Bonding-Tolerant LCD Alignment
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Solution Overview
Problem
Existing liquid crystal display devices suffer from area loss and reduced display quality due to bonding deviations between the display liquid crystal panel and the light control panel, leading to incomplete display images and decreased reliability.
Innovation Solution
The display device is designed with a light control panel where the light control region is wider than the display region in at least one direction to accommodate bonding deviations, ensuring the display region is fully covered by the light control region, thereby adjusting backlight intensity to improve contrast and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the light control panel is made the same size as the display panel, then the device complexity is reduced, but bonding deviations cause area loss and incomplete display images
Solution Approach 1:
The light control panel is designed with an asymmetric size relationship to the display panel, where the light control region extends beyond the display region boundaries in at least one direction. This asymmetric design compensates for bonding deviations and ensures complete coverage of the display area, preventing area loss and maintaining image completeness.
Solution Approach 2:
The light control panel is designed with extended dimensions beforehand to create a margin that accommodates potential bonding deviations. This preliminary compensation ensures that even when bonding errors occur, the light control region will still fully cover the display region, cushioning against the harmful effects of positioning errors.
2Manufacturing precision
If the light control region is wider than the display region, then bonding deviation tolerance is improved, but the area of the light control panel increases
Solution Approach 1:
The light control panel applies different functional qualities to different regions: the light control region extends beyond the display region boundaries only where necessary to compensate for bonding deviations, while maintaining standard dimensions in other areas. This localized extension minimizes the overall area increase while achieving the required alignment tolerance.
3Reliability
If the light control region covers the entire display region, then display quality is improved, but the device complexity increases
Solution Approach 1:
The patent employs asymmetric design where the light control panel dimensions differ from the display panel dimensions, with the light control region extending beyond display region boundaries. This asymmetric configuration ensures complete coverage of the display area by the light control region, guaranteeing that light control is applied uniformly across the entire display region and thereby improving display quality.
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
This design effectively prevents area loss of the display region, enhances image completeness and accuracy, and improves the overall display quality and reliability of the liquid crystal display device.
Implementation Method 1
a light control panel may be provided between the display panel and the backlight module of the liquid crystal display device. The light control panel can adjust the emitting angle, intensity, and the like of backlight provided by the backlight module
Data Source
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AI summary
A display device and a manufacturing method thereof, an electronic device, and a light control panel are provided. The display device includes a light control panel and a display liquid crystal panel. The display liquid crystal panel is on a light-emitting side of the light control panel; the light control panel includes a light control region, and the light control region is configured to provide adjusted backlight to the display liquid crystal panel; the display liquid crystal panel includes a display region, and the display region is configured to receive the adjusted backlight to perform display; and a distance between two opposite edges of the light control region in at least one direction is greater than a distance between two opposite edges of the display region in the at least one direction.