Display Device Temperature Sensor Integration Control IC
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Solution Overview
Problem
Head-up displays (HUDs) face challenges with temperature rise due to sunlight, leading to increased complexity and cost from additional circuits and wiring for temperature detection and control, which complicates the display device and increases wiring lines.
Innovation Solution
A display device with a control integrated circuit (IC) that integrates temperature sensor operations, allowing for partial region-based control of the display panel and temperature detection, reducing the need for additional wiring and circuits by coupling signal lines or scan lines with temperature sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature detection function is simply added to the display device, then temperature monitoring capability is improved, but device complexity and wiring line count increase
Solution Approach 1:
The patent combines the temperature detection function with the existing display control IC by integrating temperature sensors into the same circuit board. The control IC simultaneously performs display control and temperature detection functions, merging what would traditionally be separate circuits into a single integrated unit, thereby avoiding additional wiring and reducing overall device complexity
Solution Approach 2:
The control IC is designed to perform multiple functions: it controls the display panel output and simultaneously detects temperature through integrated temperature sensors. This multi-functional approach eliminates the need for separate dedicated temperature detection circuits and their associated wiring, directly addressing the contradiction between enhanced monitoring capability and reduced device complexity
2Adaptability or versatility
If separate circuits are provided for display output and temperature detection, then functional independence is improved, but wiring line count and manufacturing cost increase
Solution Approach 1:
The patent merges the display control and temperature detection circuits into a single integrated control IC. Both functions share the same circuit board and control unit, significantly reducing the number of wiring lines required and lowering manufacturing costs while maintaining the ability to independently control and monitor each function through software logic within the control IC
3Productivity
If full display region control is implemented, then display functionality is improved, but heat management complexity increases when sunlight is focused on specific areas
Solution Approach 1:
The patent divides the display region into multiple temperature detection regions, each monitored by dedicated temperature sensors. This segmentation allows the system to identify specific localized heating areas caused by focused sunlight and apply targeted cooling or brightness adjustment only to affected regions, rather than managing the entire display region uniformly, thereby reducing heat management complexity while maintaining full display functionality
Solution Approach 2:
The control IC can adjust display parameters such as brightness or cooling intensity locally for specific temperature detection regions based on their individual temperature readings. This localized control approach enables precise heat management in sunlight-affected areas without unnecessarily modifying the entire display, reducing overall system complexity while preserving full display operational capability
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 solution effectively manages temperature rise without increasing wiring lines, simplifying the display device and reducing costs by enabling partial region-based control and temperature detection within the existing circuitry.
Implementation Method 1
a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors
Data Source
AI summary
According to an aspect, a display device, includes: a display panel having a display region in which a plurality of pixels are provided; a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors. A plurality of temperature detection regions in which the temperature sensors are arranged are provided to overlap the display region. The display region has a plurality of partial regions that overlap the temperature detection regions, respectively. The control IC is provided capable of controlling the display region on a partial region basis. At least either signal lines of the display panel or scan lines of the display panel, and the temperature sensors are coupled to the control IC.