Provided is a portable terminal, including: a window module; a display module disposed below the window module; a housing partially surrounding the window module and the display module; and a waterproof portion disposed on at least one of a bottom surface and a side surface of the display module to impede liquids from penetrating between the display module and the housing. The issuer determines eligibility of the coupon for use by the consumer, and sends an authorization response message to the merchant via its acquirer and the transaction handler for the application of a corresponding discount for the item when the coupon is eligible. The present invention improves the image sticking phenomenon and the 3D image crosstalk. An All Matching Rules Engine comprising a plurality of Necessary Path Condition Rules is searched to determine which subset of matching rules, or sub-databases, to search for a best matching rule. Latch output signals from the second latch have high and low voltage values at the third and fourth power supply voltages. The compositions may also be utilized in the form of a kit or in conjunction with a design device, such as a stencil, to control the application of the composition to create, for example, a pattern on the surface.