Abstract: A liquid crystal device (LCD) driver circuit includes first through N-th input pads for respectively receiving first through N-th voltages (N>1). First through N-th electrostatic discharge (ESD) protection units are respectively connected to the first through N-th input pads, and form a discharge path when an electrostatic pulse is respectively applied through any of the first through N-th input pads. An output driver has first through N-th resistors. The first through N-th resistors respectively receive the first through N-th voltages input through the first through N-th input pads. The output driver generates a driving voltage for driving an LCD from each of the first through N-th voltages received through the first through N-th resistors, respectively. The first through N-th resistors reduce a current flowing into the output driver when the electrostatic pulse is applied. Some or all ESD protection units may include a thin gate-oxide (gox) transistor.

Abstract: The present invention provides a touch control position determining method which allows the touch control position to be determined precisely regardless of the modes of control. When a touch control is made on an input pad, it is confirmed whether or not the upper and lower vertical position detecting lines are in the non-detected state in which infrared rays are not intercepted to determine whether the touch control position is located at the upper side, the center or the lower side (Steps 100 through 112). Next, it is confirmed whether or not the right and next horizontal position detecting lines are in the non-detected state to determine whether the touch control position along the horizontal direction is located at the left side, the center or the right side (Steps 114 through 122). Thus, the touch control position in the vertical and horizontal directions is determined and the determination result is outputted (Step 124).

Abstract: A tactile force feedback apparatus for an input device comprises an inertial member having a movable portion being movable relative to the input device. A magnetically actuatable member is connected to the movable portion of the inertial member. A magnetic driver is configured to generate a magnetic field to move the magnetically actuatable member and the movable portion of the inertial member with respect to the input device to generate tactile force feedback in response to a user's manipulation of the input device. The movable portion of the inertial member may include a contact member movable to strike the input device. The contact member may comprise an elastomeric material, and may be movable to make contact with the input device at a plurality of different contact locations during movement of the contact member.

Abstract: A data entry system having a base. The base has a plurality of rotatable cylindrical controls. The controls are rotated into a plurality of positions, each of the plurality of positions represent a control sequence. Each control sequence represents one of a plurality of alphanumeric characters. An electrical processor is coupled to the controls and determines the character indicated by the control sequence.

Abstract: The present specification discloses a drive circuit of a liquid crystal display device that transfers image data to a liquid crystal panel which is able to reduce the amount of change of the value of each bit of data that may be transferred over a bus line. In the case the number of data signals that cause a polarity change in the output to a bus line is equal to or greater than the majority of data signals for each of four output ports, a controller inverts the polarity of the data signals, and outputs data from each output port to the bus line. In addition, the controller outputs polarity inversion signals, which indicate that the polarity of data signals output to the bus line has been inverted, for each output port.

Abstract: A radio frequency plasma display panel that is capable of reducing a height of a barrier rib and a frequency of a radio frequency signal as well as improving a light-emission efficiency. In the radio frequency plasma display panel, a plurality of discharge cells are arranged in a matrix pattern. Each of the discharge cells has upper and lower substrates. First and second address electrodes are provided on at least one of the upper and lower substrates to generate an address discharge. Barrier ribs are provided between the upper and lower substrates to define a discharge space. First and second radio frequency electrodes are provided the respective barrier ribs opposed to each other to generate a radio frequency sustaining discharge. Accordingly, the radio frequency sustaining discharge is generated between the first and second radio frequency electrodes within the respective barrier ribs for a long time, so that a height of the barrier ribs and a frequency of a radio frequency signal can be lowered.

Abstract: An address driving method of a plasma display panel that permits a stable high-speed addressing. In the method, a data pulse is applied to an address electrode and applying a scanning pulse to a scanning electrode, to thereby generating an address discharge in the selected cell. Also, an auxiliary pulse is to an auxiliary electrode parallel to the address electrode, to thereby generating an auxiliary discharge. Accordingly, the auxiliary discharge is used to largely shorten a discharge delay time, thereby permitting a high-speed addressing. Also, the auxiliary pulse having the same polarity as the data pulse is applied to prevent an erroneous discharge between the auxiliary electrode and the data electrode.

Abstract: A method of and apparatus for dragging and dropping items displayed on a touch screen. In one embodiment, the item on the touch screen is touched with a pressure greater than a first predetermined pressure for a first predetermined period of time. The pressure on the item is then reduced, and the item is dragged with the reduced pressure to a second location at which the touch screen is touched with a pressure greater than a second predetermined pressure for a time duration greater than a second predetermined time period. In another embodiment, the item on the touch screen is touched with a pressure greater than a predetermined pressure for a first predetermined period of time, and then the touch screen is touched at a second location with a pressure greater than the predetermined pressure for a second predetermined period of time, less than the first predetermined period of time.

Abstract: A computer input device has function buttons which can be moved relative to a position sensor. The device can be used as a mouse. In specific embodiments of the device the position sensor includes a rotatable ball and the device can be operated either as a mouse or as a trackball. Such embodiments have a ball-carrying member which is movably connected to a member which carries one or more function buttons. When configured for mouse operation the ball-carrying member underlies the member which carries the function buttons and a ball on the ball-carrying member frictionally engages a surface under the input device. When configured for operation as a trackball the ball is offset relative to the function buttons so that the ball can be comfortably operated by a user's thumb. The device can be shaped to fit a user's hand ergonomically in both mouse mode and trackball modes.

Abstract: There is provided a method for driving the TFT-LCD using multi-phase charge sharing, in which odd-numbered source lines and even-numbered source lines are connected to an external capacitor through a switching element during a period of multi-phase charge sharing time, to share the charges charged in the source lines.

Abstract: The preferred embodiment a stereoscopic LCD shutter glass driver system requires only a total of 3 CMOS integrated circuit chips in order to convert horizontal and vertical sync signals into LCD shutter glass drive signals. A negative charge pump is used increase the LCD drive voltage thereby reducing 3D crosstalk in the image. The video signal input is shown with a passthrough connection intended for direct hook-up to a television or CRT monitor. A first flip flop detects vertical and horizontal sync and is used to drive the charge pump. A stable, predictable field ID signal is produced by the flip flop whose two complimentary outputs act as inputs to a second flip flop chip which produces the drive signals for the LCD shutter glasses. A third flip flop produces a LCD “common” signal that is sent to both LCD shutters. The second flip flop produces a drive signal for each LCD shutter. A field swap between the two shutters is implemented with a switch located at the output of the third flip flop.

Abstract: A driving apparatus for driving a plasma display panel, which can reduce radiation noises, varies each application timing of a drive pulse that is applied repeatedly to row electrodes and column electrodes of the plasma display panel.

Abstract: A color-sequential LCD image display apparatus is operated through controlling an array of pixelized display elements for in each element rendering a plurality of colors in sequence. In particular, a compensating operation is executed against color impurities for a later color due to a non-instantaneous response of such elements as a result of an immediately preceding color for the element in question, under control of the combined color signals associated with both said immediately preceding color and said later color.

Abstract: A radio frequency driving circuit and a radio frequency signal switching method that are capable of easily controlling a radio frequency signal in a radio frequency plasma display panel. In the method, a turning-on signal is applied before the radio frequency signal is completely erased by applying a turning-off signal to a radio frequency generator. Accordingly, a rising time of the radio frequency signal is reduced, so that the radio frequency signal can be switched to be suitable for the PDP driving.