Abstract: The electronic card comprises at least one integrated circuit disposed on a printed circuit board, connection means to an electrical supply source connected to the printed circuit board in order to supply said integrated circuit, and control means which can be actuated manually and are connected to the integrated circuit. The integrated circuit is provided for processing signals generated by the control means. Said integrated circuit, the control means at least a part of connection means to and the supply source are enclosed in at least one layer of insulating material forming said card. The control means are formed by an assembly of electrodes in order to define a touch screen with capacitive keys which can each be activated by means of a finger (D) of a user or a pen placed on one contact surface of the card opposite at least one touch key for introduction of data or a command.

Abstract: Capacitive touch screen including first and second substrates (2, 4) that extend parallel to and at a distance from each other, said first and second substrates (2, 4) being made of a transparent, dielectric material, a first series of electrodes (6), made of a transparent, electrically conductive material, being arranged on at least the surface (2a) of the first substrate (2) that faces the second substrate (4), said touch screen being characterized in that it includes means for keeping the space between the two substrates (2, 4) constant.

Abstract: The invention proposes a liquid crystal (38) display device (12) including a liquid crystal (38) cell (30), a control unit (26), and a backlighting module (48) including at least a first (50) and a second (52) light source of different colours which transmit light rays (Rr, Rb) inside a light guide (54), characterized in that the light guide (54) includes a plurality of prisms (64, 66) which deflect the light rays (Rr, Rb) towards the display face (28), a first series (S1) of prisms (64, 66) being orientated towards the first light source (50) and a second series (S2) of prisms (52) being orientated towards the second light source (52), and in that the prisms (64, 66) are distributed in zones of the light guide (54) which are located underneath the electrodes (40). The invention also proposes a timepiece (10) fitted with this device (12).

Abstract: The electronic card comprises at least one integrated circuit disposed on a printed circuit board, connection means to an electrical supply source connected to the printed circuit board in order to supply said integrated circuit, and control means which can be actuated manually and are connected to the integrated circuit. The integrated circuit is provided for processing signals generated by the control means. Said integrated circuit, the control means at least a part of connection means to and the supply source are enclosed in at least one layer of insulating material forming said card. The control means are formed by an assembly of electrodes in order to define a touch screen with capacitive keys which can each be activated by means of a finger (D) of a user or a pen placed on one contact surface of the card opposite at least one touch key for introduction of data or a command.

Abstract: The invention proposes a liquid crystal (38) display device (12) including a liquid crystal (38) cell (30), a control unit (26), and a backlighting module (48) including at least a first (50) and a second (52) light source of different colours which transmit light rays (Rr, Rb) inside a light guide (54), characterized in that the light guide (54) includes a plurality of prisms (64, 66) which deflect the light rays (Rr, Rb) towards the display face (28), a first series (S1) of prisms (64, 66) being orientated towards the first light source (50) and a second series (S2) of prisms (52) being orientated towards the second light source (52), and in that the prisms (64, 66) are distributed in zones of the light guide (54) which are located underneath the electrodes (40). The invention also proposes a timepiece (10) fitted with this device (12).

Abstract: Capacitive touch screen including first and second substrates (2, 4) that extend parallel to and at a distance from each other, said first and second substrates (2, 4) being made of a transparent, dielectric material, a first series of electrodes (6), made of a transparent, electrically conductive material, being arranged on at least the surface (2a) of the first substrate (2) that faces the second substrate (4), said touch screen being characterized in that it includes means for keeping the space between the two substrates (2, 4) constant.