Display devices
AssigneeMitsui Chemicals, Inc.
InventorsHayato Kurita, Kan Komiya
Life of this patent
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Abstract
A display device that includes a display element including a light source, and a surface film disposed so as to overlap with the display element and including a thermoplastic elastomer composition, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, and the surface film satisfying conditions (3) and (4) below: (1) The melt flow rate (ASTM D1238, 230° C., 2.16 kg load; MFR) is not less than 30 g/10 min. (2) The type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90. (3) The thickness is not less than 300 μm and not more than 2 mm. (4) The total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.
Claims10
A display device comprising a display element including a light source, and a surface film disposed so as to overlap with the display element and comprising a thermoplastic elastomer composition, wherein the surface film has a step at a position where the display element is attached, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, the surface film satisfying conditions (3) and (4) below:
- (1) the melt flow rate (ASTM D1238, 230° C., 2.16 kg load;
- MFR) is not less than 30 g/10 min;
- (2) the type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90;
- (3) the thickness is not less than 300 μm and not more than 1.5 mm;
- (4) the total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.
Dependencies are inferred from the claim text.