LCD Data IC Channel Selection for Multi-Resolution Panels
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Solution Overview
Problem
Existing liquid crystal display (LCD) technologies face inefficiencies and increased manufacturing costs due to the need for different numbers of data integrated circuits (ICs) with varying output channels for each resolution type, leading to reduced working efficiency and higher production expenses.
Innovation Solution
A liquid crystal display device that controls output channels of data integrated circuits based on the resolution of the display panel, using a channel selector to adjust the number of active output channels, allowing a single type of data IC to be used across multiple resolutions by treating additional channels as dummy channels when not needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different numbers of data integrated circuits with varying output channels are used for each resolution type, then the display can support various resolutions, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies universality by designing a data integrated circuit with all output channels enabled by default, allowing the same IC to function across multiple resolutions. The IC can output to all data lines simultaneously or selectively, eliminating the need for different IC types for different resolutions while maintaining full adaptability.
Solution Approach 2:
The patent implements dynamics through a channel selection mechanism that dynamically enables or disables specific output channels based on the required resolution. This allows a single static IC design to adapt its functionality dynamically, supporting various resolutions without requiring multiple specialized IC types.
2Adaptability or versatility
If different numbers of data integrated circuits with varying output channels are used for each resolution type, then the display can support various resolutions, but the manufacturing cost increases
Solution Approach 1:
By creating a universal data IC that can serve multiple resolution requirements, the patent reduces manufacturing costs through economies of scale. Instead of producing and inventorying multiple specialized IC types, manufacturers can produce a single standardized IC design, simplifying the supply chain and reducing per-unit costs.
Solution Approach 2:
The patent changes the operational parameters of the data IC (which channels are active) rather than changing the physical IC itself. This parameter-based configuration approach allows cost-effective reuse of the same hardware across different resolution scenarios, eliminating the need for expensive custom IC variants.
3Ease of manufacture
If a single type of data IC is used for multiple resolutions, then manufacturing cost decreases, but channel usage efficiency may be reduced due to dummy channels
Solution Approach 1:
The patent employs dynamic channel selection to activate only the necessary output channels based on the current resolution requirement. This dynamic configuration ensures that while a single IC type is used, the active channels are optimized for the specific resolution, maintaining high channel usage efficiency without wasting resources on unnecessary channels.
Solution Approach 2:
The patent extracts and activates only the required subset of output channels for each resolution scenario, leaving unnecessary channels inactive rather than forcing all channels to operate. This selective activation approach maintains manufacturing simplicity while preserving channel efficiency by avoiding the use of dummy channels when possible.
Data Source
AI summary
A display having a data driving integrated circuit includes N number of output channels (where N is an integer) having at least two regions including a first output channel and an Nth output channel, a data output channel group including M data output channels (where M is an integer less than N), the M data output channels supplying pixel data to a corresponding number of the data lines in accordance with a desired resolution of the display, wherein (N−M) output channels are not supplied with pixel data, and the (N−M) output channels are located between the first output channel and the Nth output channel, and a channel selector selecting the M data output channels.