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Display device with electrostatic capacitive coupling touch panel input device

A coupling method and electrostatic capacitance technology, which is applied in the input/output process of data processing, circuits, electrical components, etc., can solve problems such as large internal stress, changes in contact and joint state, and formation costs, and achieve high reliability.

Inactive Publication Date: 2017-03-22
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal oxide films are generally formed in a vacuum by sputtering, and thus require formation costs. In addition, there are problems such as the following. In particular, for indium tin oxide, it is necessary to form a film with excellent conductivity and light transmittance. High temperature conditions close to 200°C, so the internal stress of the formed film is large, and the substrate after film formation bears stress load
These methods are considered to have the following problems: from the time of coating to the time of dry film formation, drying shrinkage occurs as a film, the state of contact and bonding between metal nanowires varies, and individual differences occur in each film.

Method used

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  • Display device with electrostatic capacitive coupling touch panel input device
  • Display device with electrostatic capacitive coupling touch panel input device
  • Display device with electrostatic capacitive coupling touch panel input device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A display device with a capacitive coupling type touch panel input device according to the first embodiment is shown in figure 1 cross-sectional view.

[0044] In the display device with the capacitive coupling type touch screen input device of the present embodiment, the upper surface of the display device 101 is equipped with the electrostatic capacitive coupling type touch screen 102, and the upper surface of the touch screen is further equipped with a device for transmitting visible light with a wavelength greater than or equal to 430 nm. Light-transmitting layer Specific wavelength region light-transmitting layer 103 .

[0045] Regarding this embodiment, an embodiment in which the display device 101 is a liquid crystal display device is shown in figure 2 cross-sectional view.

[0046] When the display device is a liquid crystal display device, the liquid crystal display device 201 has the following configuration. On the first transparent substrate 205, a displa...

Embodiment 2

[0062] A display device with a capacitive coupling type touch panel input device according to a second embodiment is shown in image 3 cross-sectional view.

[0063] In the display device with a capacitive coupling type touch panel input device of this embodiment, a capacitive coupling type touch panel 302 is bonded to the upper surface of a liquid crystal display device 301 via an optically transparent adhesive layer 309 . The touch screen 302 is equipped with a touch screen transparent electrode circuit 310 on the surface of the touch screen transparent substrate 311 for detecting the coordinates of the touch position.

[0064] Furthermore, a second specific wavelength region light-transmitting layer 312 serving as a light-transmitting layer that transmits visible light having a wavelength of 430 nm or more is provided on the upper surface of the touch panel transparent substrate 311 .

[0065] In this embodiment, the transparent substrate 311 of the touch screen and the li...

Embodiment 3

[0068] A display device with a capacitive coupling type touch panel input device according to a third embodiment is shown in Figure 4 cross-sectional view.

[0069] In the display device with a capacitive coupling type touch panel input device according to this embodiment, the upper surface of the display device 401 is provided with a first specific wavelength region light-transmitting layer 402 that serves as a light-transmitting layer that transmits visible light with a wavelength greater than or equal to 430 nm, The capacitive coupling type touch panel 403 is provided on its upper surface, and the second specific wavelength region light-transmitting layer 404 serving as a light-transmitting layer that transmits visible light with a wavelength of 430 nm or more is provided on the upper surface of the touch panel.

[0070] Regarding this embodiment, an embodiment in which the display device is a liquid crystal display device is shown in Figure 5 cross-sectional view. When...

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PUM

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Abstract

The present invention pertains to a display device which, as an input device, has attached thereto an electrostatic capacitive coupling touch panel that uses a transparent conductive film containing metal nanowires as a transparent electrode, and the present invention attempts to solve the problem such that when the display device is used outdoors and exposed to solar-light illumination, electrical-characteristic reliability, as an electronic component, is impaired. The means for solving this problem is a display device having a touch panel input device, wherein a structure in which a touch panel substrate is bonded to the upper surface of the display device is equipped with a light transmitting layer that lets visible light at wavelengths of 430 nm and above pass through, on the upper surface side of the touch panel substrate or both on the upper surface side and the lower surface side of the touch panel, thereby suppressing the entry of light within the wavelength range that affects the metal nanowire conductive film.

Description

technical field [0001] The present invention relates to a display device provided with an electrostatic capacitive coupling type touch screen as an input device, and the electrostatic capacitive coupling type touch screen uses a metal nanowire conductive film as a transparent electrode. Background technique [0002] Active-matrix display devices using thin film transistors are thin and lightweight, and are generally used as display devices for televisions, computers, mobile phones, small portable devices, in-vehicle devices, and other various electronic devices. [0003] Most of these display devices are liquid crystal display devices that include a liquid crystal cell sandwiching liquid crystal between a pair of transparent substrates, an optically anisotropic film bonded to the two sides of the liquid crystal cell, and a backlight plate as a display light source. An organic electroluminescence display device that performs self-luminescence by converting an electric power a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G02B5/22G06F3/044
CPCG02F1/133509G02F2203/055G06F2203/04103G06F2203/04111G02F1/13338G06F3/0446G06F3/04164G06F3/0443H10K59/40G02B5/22G02B5/282G02F1/1336H01B1/02H01B5/14G02B6/00G02F1/133504G02F1/13439G02F1/136286H10K50/00G02F1/136295
Inventor 田中顺
Owner RESONAC CORPORATION