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A system and method for realizing electromagnetic positioning on a TFT substrate

An electromagnetic positioning and substrate technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of unable to write/display when power off, difficult to use TFT substrate, affecting detection accuracy, etc., to achieve increased Large detectable area, reduced product thickness, and improved detection efficiency

Active Publication Date: 2021-11-23
SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Ordinary liquid crystal displays (LCD or LED or OLED, etc.) are also based on the TFT substrate structure, and their display depends on the internal backlight or self-luminous devices, and the writing / display function must be realized when the power is on. Electricity cannot write / display
[0008] When electromagnetic positioning is used, in the prior art, copper wire wiring is used for electromagnetic positioning, which is difficult to use on TFT substrates; moreover, when electromagnetic positioning is performed in the prior art, it is often interfered by space signals, which affects detection Accuracy; while eliminating spatial interference signals by adding other circuit components will increase the cost of the product

Method used

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  • A system and method for realizing electromagnetic positioning on a TFT substrate
  • A system and method for realizing electromagnetic positioning on a TFT substrate
  • A system and method for realizing electromagnetic positioning on a TFT substrate

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Embodiment 1

[0031] According to an embodiment of the present invention, a system for realizing electromagnetic positioning on a TFT substrate comprising: a TFT substrate, a plurality of first detection wires and a plurality of second detection wires are integrated on the TFT substrate.

[0032] The TFT substrate is divided into two portions in the first direction, the first detecting wire to be arranged in a set shape on the TFT substrate; the set shape includes: a plurality of bend portions, the bending portion The two parts are relatively disposed; each of the first detecting wires is connected to a common ground line that is arranged in the second direction, forming a first electromagnetic induction coil; a plurality of first detection wires respectively along the second direction A common ground connection to form a plurality of first electromagnetic induction coils;

[0033] The width of the bent portion is a odd number of odds (such as 3 times, 5 times or 7 times) between the two adjace...

Embodiment 2

[0068] According to an embodiment of the present invention, a system for realizing electromagnetic positioning on a TFT substrate comprising: a TFT substrate, a plurality of first detection wires and a plurality of second detection wires are integrated on the TFT substrate.

[0069] The TFT substrate is divided into two portions in the first direction, the first detecting wire to be arranged in a set shape on the TFT substrate; the set shape includes: a plurality of bend portions, the bending portion The two parts are relatively disposed; each of the first detecting wires is connected to a common ground line that is arranged in the second direction, forming a first electromagnetic induction coil; a plurality of first detection wires respectively along the second direction A common ground connection to form a plurality of first electromagnetic induction coils;

[0070] The width of the bent portion is a odd number of odds (such as 3 times, 5 times or 7 times, etc.) between the two ...

Embodiment 3

[0083] According to an embodiment of the present invention, a method of achieving electromagnetic positioning on a TFT substrate is disclosed, and the method is based on a system that implements electromagnetic positioning on the TFT substrate in the embodiment; the method includes:

[0084] Receive the electromagnetic induction signal of each of the first electromagnetic induction coils and perform signal spectrum processing to obtain the intensity of the induced signal of the set frequency, and sort the first electromagnetic induction coil according to the intensity of the detection signal, determine the second of the electromagnetic signal transmitting part. Direction coordinates;

[0085] The electromagnetic induction signal of each second electromagnetic induction coil is received and the signal spectrum processing is performed to obtain the intensity of the induced signal of the set frequency, and the second electromagnetic induction coil is sorted according to the intensity...

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Abstract

The present invention relates to the technical field of electromagnetic positioning, and discloses a system and method for realizing electromagnetic positioning on a TFT substrate, comprising: dividing the TFT substrate into two parts in a first direction, and the first detection wire is placed on the TFT substrate according to The set shape is arranged; the set shape includes: a plurality of bent parts, the bent parts are arranged oppositely on the two parts; the first detection wire and the common ground wire arranged along the second direction connected to form a plurality of first electromagnetic induction coils; the TFT substrate is divided into two parts in the second direction, and the second detection wire is arranged on the TFT substrate according to a set shape; the set shape includes: a plurality of bending parts , the bent portion is arranged oppositely on the two parts; the second detection wire is connected to the common ground wire arranged along the first direction to form a plurality of second electromagnetic induction coils. It is arranged in upper and lower parts, so that the ability of the system to resist space interference signals is greatly improved.

Description

Technical field [0001] The present invention relates to the field of electromagnetic positioning techniques, and more particularly to a system and method for realizing electromagnetic positioning on a TFT substrate. Background technique [0002] At present, the liquid crystal writing or display device on the market mainly includes: [0003] (1) Double-steady liquid crystal writing / display device (such as writing board or electronic paper), its working principle is to use liquid crystal dual steady properties to implement writing, display, and / or erasure. For example, with a cholesteric liquid crystal as a writing board, the writing pressure trajectory of the writing pen is recorded by acting on the liquid crystal state of the pen to record the writing pen, and the corresponding writing content is displayed; the cholesteric liquid crystal structure is made by applying an electric field. Changes have changed the writing pressure trajectory on the liquid crystal writing board di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/046G02F1/1333G02F1/167G02F1/1675G02F1/1685
CPCG06F3/046G02F1/13338G02F1/167G02F1/1675G02F1/1685
Inventor 李清波杨猛训
Owner SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP