Abstract: A membrane touch panel device includes a circuit board unit, a light-blocking frame plate, a plurality of light-blocking tabs, and an operation panel unit that are stacked along a front-rear direction. The circuit board unit includes a circuit board having a plurality of keypad circuits, and a plurality of LEDs being electrically connected to the circuit board. A light transmission rate of the circuit board ranges from 0% to 20%. The light-blocking frame plate is stacked on the circuit board, and defines a hollow section provided for the LEDs to protrude thereinto. The light-blocking tabs are connected to the light-blocking frame plate such that the light-blocking tabs respectively cover the LEDs. The operation panel unit is stacked on the light-blocking frame plate, and has a plurality of key segments being respectively aligned with the keypad circuits, and being adapted to permit light generated by the LEDs to pass therethrough.

Abstract: The present invention relates to an anti-static photomask, including a substrate and a patterned mask layer formed on the substrate. The patterned mask layer includes a conductive strip and a conductive string, wherein the conductive strip includes an end, and the conductive string includes an isolated end. The end of the conductive strip is connected to the conductive string.

Abstract: A rubber-modified polystyrene resin composition is for making an electroplatable article which has a sectioned layer defining a unit area. The rubber-modified polystyrene resin composition includes a resin matrix, occlusion rubber particles dispersed in the resin matrix, and non-occlusion rubber particles dispersed in the resin matrix. A total sectional area ratio of the occlusion rubber particles to the non-occlusion rubber particles in the unit area ranges from 1.1 to 14.

Abstract: A rubber-modified polystyrene resin composition is for making an electroplatable article which has a sectioned layer defining a unit area. The rubber-modified polystyrene resin composition includes a resin matrix, occlusion rubber particles dispersed in the resin matrix, and non-occlusion rubber particles dispersed in the resin matrix. A total sectional area ratio of the occlusion rubber particles to the non-occlusion rubber particles in the unit area ranges from 1.1 to 14.

Abstract: The present invention discloses a transparent rubber-modified monovinylidene aromatic resin. The rubber-modified monovinylidene aromatic resin comprises: a dispersed rubber particle (A) and a continuous phase matrix copolymer (B). The surface of the molding has a maximum height difference (&Dgr;Hmax) of less than 3,200 Å, and an average height difference (&Dgr;Have) of less than 2,000 Å when measured with a surface profiler. The average ratios of major diameter to minor diameter of said rubber particles before and after annealing at 120° C. for 40 mins are A1 and A2 respectively, and the ratio of A1/A2 ranges form 1.08 to 2.35.