Abstract:
A display assembly includes a transparent cover piece (62), a display shroud (48; 248) having a contact structure (74; 274) arranged to face the transparent cover piece (62), an interface subassembly (32; 232) mounted on the display shroud (48; 248), an electronics board shroud (44) having a support member (82) and a connection feature (84), and a biasing member (46) operably engaged between the display shroud (48; 248) and the electronics board shroud (44). The connection feature (84) mechanically connects the electronics board shroud (44) to the display shroud (48; 248) while permitting axial displacement and rotation therebetween. The biasing member (46) rests on the support member (82) of the electronics board shroud (44), and the biasing member (46) is configured to urge the contact structure (74; 274) of the display shroud (48; 248) into physical contact with the transparent cover piece (62). The interface subassembly (32; 232) includes a display circuit (36) for providing a digital display and a touch circuit (34) for providing touch actuation at or near the digital display through the transparent cover piece (62).
Abstract:
Die Erfindung bezieht sich auf einen kapazitiven Annäherungssensor mit einem oder mehrere durchscheinende Bereiche aufweisenden Anzeigefeld 11, bei dem auf der einem Beobachter abgewandten Seite eine erste Leiterplatte 1 angeordnet ist, die zumindest im Bereich der durchscheinenden Bereiche des Anzeigefelds 11 lichtdurchscheinend ausgebildet ist und kapazitätsbildende Sensorschichten trägt. Lichtschächte 4 umschließen die auf der dem Beobachter abgewandten Seite die Sensorschichten und ragen von der ersten Leiterplatte 1 bis zu einer sich in einem Abstand parallel zur ersten Leiterplatte 1 erstreckenden zweiten Leiterplatte 6, wobei auf der zweiten Leiterplatte 6 innerhalb der Lichtschächte 4 Lichtquellen angeordnet sind und wobei von der ersten Leiterplatte 1 ein Kontaktelement 5 zur zweiten Leitenplatte 6 führt. Beobachterseitig sind auf der ersten Leiterplatte 1 in den Bereichen der durchscheinenden Bereiche Lichtleiter 2, 2' aufgebracht, wobei die erste Leiterplatte 1 von einem Funktionsträger 3 aus lichtundurchlässigem Kunststoff auf der Beobachterseite mit gleicher Dicke wie die Lichtleiter 2, 2', die Bereiche der Lichtleiter 2, 2' beidseitig auf der ersten Leiterplatte 1 aussparend und auf der dem Beobachter abgewandten Seite die Lichtschächte 4 bildend umspritzt ist. Eine lichtundurchlässige Dekorschicht 8 überdeckt beobachterseitig die Lichtleiter 2, 2' und den Funktionsträger 3 und weist in den Bereichen der durchscheinenden Bereiche Zeichen und/oder Symbole bildende Durchbrüche 9, 9' auf, wobei die zweite Leiterplatte 6 an der dem Beobachter abgewandten Seite des Funktionsträgers 3 befestigt ist.
Abstract:
The invention relates to a touch sensor assembly having a sensor mounted on a three-dimensional surface thereof, and to a method for producing the touch sensor assembly. For this purpose, the touch sensor assembly according to one embodiment of the present invention comprises: a base member having a three-dimensional surface; and a film for a touch sensor, which has a transparent conductive layer made of carbon nanotubes to sense a variation in capacitance due to contact from an external source, and which is formed integrally with the three-dimensional surface of the base member. Consequently, electrical characteristics such as a sheet resistance of the film for a touch sensor scarcely changes, and thus causes no thermal deformation in the film for a touch sensor even when the film for a touch sensor is warped by pressure and heat during the process in which the film for a touch sensor is formed integrally with the three-dimensional surface of the base member. Further, the touch sensor of the present invention can be transformed into a specific shape in accordance with the design of a manufacturer without causing cracks on the transparent conductive layer.
Abstract:
터치센서가 입체면에 형성된 터치센서 조립체 및 터치센서 조립체 제조방법을 제시한다. 이를 위한, 본 발명의 실시예에 따른 터치센서 조립체는 입체면을 포함하는 베이스부재와, 외부의 접촉에 의한 정전용량변화를 감지하는 투명 도전층이 탄소나노튜브로 이루어지며, 베이스부재의 입체면에 일체 형성된 터치센싱용 필름을 포함한다. 이에 따라, 터치센싱용 필름이 베이스부재의 입체면과 일체로 형성되는 과정에서 압력과 열을 받아 휘어지더라도, 터치센싱용 필름의 면저항과 같은 전기적 특성은 거의 변화되지 않으면서 터치센싱용 필름에 열변형이 발생되지 않는다. 또한, 투명 도전층에 크랙이 발생되지 않으면서 제조사의 설계에 따라 특정 형상으로 변형될 수 있다.
Abstract:
A capacitive sensor may include a flex circuit, a substrate facing the flex circuit, and conductive electrodes configured to sense an input applied to the substrate. At least one of the conductive electrodes is associated with a surface of the substrate and an at least one of the electrodes is associated with a surface of the flex circuit.
Abstract:
An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude. Switching electric signal at the compensation electrode is phase- delayed with respect to the switching electric signal at the transmission electrode. Alternating electric fields radiated at the transmission electrode and the compensation electrode generate a current in the reception electrode, which is representative of an approach of a hand to the hand-held device. The transmission electrode and the reception electrode are arranged in such a way, that the impedance between the transmission electrode and the reception electrode exceeds a predetermined value, which is suitable to keep the current generated in the reception electrode under a predetermined value.