Liquid crystal display device with touch screen panel
A technology of liquid crystal display devices and touch panels, applied in the input/output process of data processing, instruments, polarizing elements, etc., can solve problems such as peeling off, difficulty in removing moisture from the touch panel, and deterioration of visibility
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Embodiment 1
[0333]
[0334] An ITO film was formed on tempered glass by a sputtering method so as to have a thickness of 20 nm, and a first electrode pattern in the X direction was formed by etching.
[0335] Next, as an insulating layer arranged between the electrode patterns, SiO 2 A film was formed so as to have a thickness of 200 nm, an ITO film was formed thereon by sputtering so as to have a thickness of 20 nm, and a second electrode pattern was formed in the Y direction by etching. Then, as an insulating layer on it, SiO was sputtered 2 Film formation was performed so as to have a thickness of 200 nm.
[0336] It was connected to a control circuit via lead wires prepared by coating and firing Ag paste on the formed ITO electrode patterns in the X direction and Y direction, respectively.
[0337] Next, the cellulose ester film A1 produced under the following conditions was bonded to the second electrode pattern via an adhesive layer to produce the touch panel module 1 .
[0338...
Embodiment 2
[0422]
[0423] On the cellulose ester films A1 to A6 prepared above, the compositions obtained by filtering the following hard coat composition 1 with a polypropylene filter with a pore size of 0.4 μm were applied using an extrusion coater, and the After drying at a temperature of 80°C, nitrogen cleaning is performed so that an atmosphere with an oxygen concentration of 1.0% by volume or less is formed, and an ultraviolet lamp is used so that the illuminance of the irradiated part is 100mW / cm 2 , so that the irradiation dose is 0.25J / cm 2 The coating layer was solidified to form a hard coat layer 1 with a dry film thickness of 3 μm, which was wound up to produce roll-shaped hard coat films A1H to A6H.
[0424]
[0425] The following materials were stirred and mixed to obtain a hard coat coating composition 1 .
[0426] pentaerythritol tri / tetraacrylate
[0427]
[0428]Using produced hard coat films A1H to A6H, a touch panel module was produced in the same manner as ...
Embodiment 3
[0431] In preparation of the cellulose ester film A1, the cellulose ester film C1 was produced in the same manner except that the web was stretched by 45% in the width direction with a tenter.
[0432] As a result of measuring the retardation of the cellulose ester film C1 by the following measurement method, the in-plane retardation value Ro was 145 nm.
[0433] (Evaluation of Retardation Film)
[0434] (direction of slow axis)
[0435] The in-plane average refractive index of the film sample at a light wavelength of 590 nm was measured with an Abbe refractometer (1T) in an environment with a temperature of 23° C. and a relative humidity of 55% RH to obtain the direction of the slow axis.
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Abstract
Description
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