Film touch sensor and manufacturing method therefor
A touch sensor, protective layer technology, applied in the direction of the conductive layer and coating on the instrument, insulating carrier, etc., can solve the problem of touch sensor cracks and other problems
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[0246] The manufacturing method of the film touch sensor of the present invention may further include a step of attaching the base film 60 to the insulating layer 50 (not shown).
[0247] In this case, the peeling process may be performed before or after the base film 60 is attached.
[0248] The film touch sensor according to one embodiment of the present invention can be applied to various display panels. Accordingly, one embodiment of the present invention relates to a display device including a film touch sensor.
[0249] As the display panel, a liquid crystal display (LCD) panel, a plasma display panel (PDP), an organic light emitting diode (OLED) panel, an electrophoretic display (EPD) panel, and the like can be exemplified.
[0250] Hereinafter, the present invention will be described in more detail by way of Examples, Comparative Examples and Experimental Examples. However, these Examples, Comparative Examples, and Experimental Examples are for illustrative purposes ...
preparation Embodiment 1
[0257] Preparation Example 1: Preparation of Curing Agent B-1
[0258] In a flask equipped with a stirrer, thermometer and condenser, add 1086g PGMAc (propylene glycol monomethyl ether acetate), 587.3g (0.80mol) IPDI3N (isocyanurate type synthesized from isophorone diisocyanate) Triisocyanate: NCO% = 17.2) and 499.1 g (2.52 mol) of cyclohexane-1,3,4-tricarboxylic acid-3,4-anhydride and heated to 140°C. The reaction was continued with foaming. The reaction was carried out at this temperature for 8 hours. The reaction solution turned into a yellowish liquid in the system. As a result of measuring the characteristic absorption by infrared spectroscopy, at 2270 cm -1 The absorption at , which is the characteristic absorption of the isocyanate group, disappears completely, and at 1780cm -1 and 1720cm -1 Absorption by the imide group was observed. The acid value was 212 KOH mg / g based on solid content, and the number average molecular weight (Mn) was 4,700 in terms of polystyr...
preparation Embodiment 2
[0259] Preparation Example 2: Preparation of Curing Agent B-2
[0260] In a flask equipped with a stirrer, a thermometer and a condenser, 1496 parts by weight of EDGA (diethylene glycol monomethyl ether acetate), 888 parts by weight (4mol) of IPDI (isophorone diisocyanate) and 960 parts by weight were added. parts by weight (5 mol) of trimellitic anhydride and heated to 160°C. The reaction was continued with foaming. The reaction was carried out at this temperature for 4 hours. The reaction solution turned into a slightly brown liquid in the system. As a result of measuring the characteristic absorption by infrared spectroscopy, at 2270 cm -1 The absorption at , which is the characteristic absorption of the isocyanate group, disappears completely, and at 725cm -1 、1780cm -1 and 1720cm -1 Absorption by the imide group was observed. The acid value was 85 KOH mg / g based on solid content, and the number average molecular weight (Mn) was 1,600 in terms of polystyrene standar...
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