Flexible digital panel based on array transistor sensor

A technology of transistors and sensors, applied in the field of flexible digital boards based on array transistor sensors, can solve problems such as single working principle of digital boards, reduced mobile portability, and limited size of digital boards

Active Publication Date: 2020-10-27
SOUTHEAST UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] However, the working principle of the current digital board is relatively simple, mainly based on the principle of electromagnetic induction.
In addition, due to the design of its full hardware shell, the size of the tablet is limited, and the large size is not easy to carry, while the small size cannot meet the size requirements of the application in some scenarios, that is, the full hard shell design makes it mobile Portability is greatly reduced

Method used

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  • Flexible digital panel based on array transistor sensor
  • Flexible digital panel based on array transistor sensor
  • Flexible digital panel based on array transistor sensor

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Embodiment Construction

[0025] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, the structure of a flexible digital board includes a top packaging layer 1 , a data acquisition layer 2 and a top packaging layer 3 . Among them, the top encapsulation layer 1 and the bottom encapsulation layer 3 can adopt high molecular organic polymers such as PDMS and silica gel, which mainly play the role of electrical insulation and protection for the data acquisition layer, and PDMS is preferably used. The structure of the data acquisition layer 2 is a typical three-layer structure, from top to bottom are the row scanner and the top electrode 21, the flexible array transistor layer 23, the column scanner and the bottom electrode 22, and the data acquisition layer 2 also includes the data acquisition conversion circuit.

[0027] The top electrode is electrically connected to ...

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Abstract

The invention discloses a flexible digital panel based on an array transistor sensor. The flexible digital panel comprises a top packaging layer, a data acquisition layer and a bottom packaging layer,wherein the data acquisition layer comprises a row scanner, a top electrode, a flexible array transistor layer, a column scanner and a bottom electrode; a piezoelectric semiconductor transistor or apiezoelectric MOS transistor is adopted as a basic unit of the array transistor sensor. For an N*M transistor sensor array, an ith output line of the top electrode and a jth output line of the bottomelectrode correspondingly output current information Iij of a transistor sensor unit at a two-dimensional plane position (i, j) of the digital panel, and then the current information Iij is convertedinto voltage information Uij through an information acquisition and conversion circuit to represent pressure information. According to the flexible digital panel, the flexible digital panel is endowedwith bendable and foldable performance and a brand-new working mechanism in the aspects of working principle and structural construction.

Description

technical field [0001] The invention relates to flexible electronics and a digital board, in particular to a flexible digital board based on an array transistor sensor. Background technique [0002] The current digital board is mainly based on the principle of electromagnetic induction, and the contact between the brush stroke and the digital board is innovated and optimized in order to achieve better recognition accuracy. Compared with the traditional handwriting tablet, which mainly relies on software recognition mode, the performance of digital tablet has been greatly improved. It has great application prospects in fields such as signing and painting. Its main parameters include pressure sensitivity level, resolution, Take speed and board size. [0003] However, the working principle of the current digital board is relatively simple, mainly based on the principle of electromagnetic induction. In addition, due to the design of its full hardware shell, the size of the tab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/053H01L41/08G06F3/041
CPCG06F3/0414H10N30/1071H10N30/88
Inventor 吴俊段升顺
Owner SOUTHEAST UNIV
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