Compact Display Peripheral Region via Vertical Component Stacking
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Solution Overview
Problem
There is a need for a compact display device that can efficiently perform both display and touch input operations, where existing devices often compromise on size due to the overlap of control circuit units and drive elements in the peripheral region.
Innovation Solution
The display device incorporates a first substrate unit with a display unit, control circuit unit, and drive element, where the control circuit unit is positioned in the peripheral region and includes a third line connection line and switch, and a second substrate unit with fourth lines, with a display function layer between the substrate units, allowing for optical operations based on electrical signals and touch input sensing without significant overlap, thereby reducing the peripheral region's surface area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control circuit unit and drive element are placed in the peripheral region, then display and touch input operations can be performed, but the device size increases due to overlap of components
Solution Approach 1:
The patent utilizes the third dimension (vertical stacking) by providing the control circuit unit on the first substrate and the drive element on the second substrate at overlapping positional regions. This spatial arrangement in different planes allows both components to coexist without lateral expansion, reducing the peripheral region's surface area while maintaining full functionality for both display and touch input operations.
2Adaptability or versatility
If control circuit unit is positioned in the peripheral region, then display operations can be performed, but touch input sensing time increases due to circuit layout
Solution Approach 1:
By positioning the control circuit unit and drive element in different planes (first substrate and second substrate respectively) at overlapping regions, the patent shortens the lateral distance for signal transmission between touch sensing elements and control circuits. This vertical arrangement reduces the path length for sense operations, thereby decreasing the time required for touch input processing while maintaining display functionality.
3Area of stationary object
If control circuit unit and drive element overlap in the peripheral region, then device compactness is achieved, but incongruity between display and input resolution occurs
Solution Approach 1:
The patent resolves resolution alignment issues by implementing the control circuit unit and drive element in different planes, which allows for independent optimization of each component's positioning and routing. This vertical separation enables precise alignment of touch sensing elements with display pixels without the lateral space constraints that cause incongruity, thereby maintaining high resolution for both display and input functions in a compact peripheral region.
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 configuration enables a compact display device that maintains high-definition display capabilities while allowing for efficient touch input operations, reducing the time required for sense operations and minimizing incongruity between display and input resolution.
Implementation Method 1
a display function layer provided between the first substrate unit and the second substrate unit, and performing an optical operation based on an electrical signal applied to the plurality of pixel electrodes
Data Source
AI summary
According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.