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Display device with touch sensor, control system and control method thereof

A touch sensor and display device technology, applied to instruments, static indicators, data processing input/output process, etc., can solve problems such as impossibility and poor accuracy of touch sensors

Inactive Publication Date: 2014-08-20
NEC LCD TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A display device equipped with a capacitive touch sensor has a problem that since a touch sensor placed adjacent to a display panel is affected by noise generated by the display panel, a large amount of noise is mixed into a detection signal of the touch sensor, making the touch sensor The accuracy of the position detection becomes worse
[0009] However, in the state of a display device having a touch sensor, in which the touch sensor and the display device are combined, there is an influence of external noise in the touch sensor due to differences in structural elements and assembly tolerances. individual differences
Therefore, when a display device having a touch sensor is installed in an electronic device, since it is installed in the electronic device, it is impossible to perform adjustment using the techniques described in Patent Documents 1-3 even in the presence of external noise. When the optimal value changes for each device

Method used

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  • Display device with touch sensor, control system and control method thereof
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Embodiment Construction

[0030] Hereinafter, modes for carrying out the invention (hereinafter referred to as “exemplary embodiments”) will be described with reference to the drawings. In the present specification and drawings, the same reference numerals are used for substantially the same structural elements. The shapes in the drawings are shown to be easily understood by those skilled in the art, so that the dimensions and proportions thereof do not necessarily correspond to actual shapes.

[0031] figure 1 is a plan view illustrating a display device with a touch sensor according to the first exemplary embodiment. figure 2 for along figure 1 A cross-sectional view taken along the line II-II. image 3 for figure 2 An enlarged cross-sectional view of the touch sensor shown in . Figure 4A and Figure 4B show figure 2 An enlarged cross-sectional view of the variable distance mechanism shown in , where, Figure 4A In order to increase the distance between the touch sensor and the display pa...

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Abstract

A display device with a touch sensor and the like, capable of adjusting the external noise even in a state where the touch sensor is being placed on a display panel or a state where the display device with the touch sensor is being mounted into an electronic apparatus, includes a display panel, a capacitance type touch sensor provided by being superimposed on the display panel, and a distance variable mechanism which changes the distance between the touch sensor and the display panel.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Japanese Patent Application No. 2013-027464 filed on February 15, 2013, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to a display device with a touch sensor and its control system and control method. The display device is a display device equipped with a capacitive touch sensor. Background technique [0004] A display device equipped with a capacitive touch sensor has a problem that since a touch sensor placed adjacent to a display panel is affected by noise generated by the display panel, a large amount of noise is mixed into a detection signal of the touch sensor, making the touch sensor The accuracy of position detection becomes worse. [0005] In this regard, Japanese Unexamined Patent Publication No. 2010-169791 (Patent Document 1) titled "Liquid Crystal Display Device" proposes a me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G09G3/36
CPCG06F3/044G06F2203/04107G06F3/0445
Inventor 森下静夫
Owner NEC LCD TECH CORP