Abstract: A method of synthesizing a high purity product of ?, ?, ??, ??-tetrachloro-p-xylene is disclosed. The method includes carrying out a first stage reaction of terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a product mixture containing ?, ?, ??, ??-tetrachloro-p-xylene as a major product and 4-dichloromethyl benzaldehyde as a side product; adding SOCl2 and DMF to the product mixture of the first stage reaction to undergo a second stage reaction; and to a cool water adding the resulting product mixture from the second stage reaction to obtain a solid product of ?, ?, ??, ??-tetrachloro-p-xylene with a purity of 90-99 mol %.

Abstract: A current driving apparatus and method for active matrix organic light emitting diode (AMOLED) includes two abutting sub-pixels (an odd sub-pixel and an even sub-pixel). The driving apparatus of each sub-pixel includes a writing element, a switching element, a driving element, a control element, a storage element, and a light emission element. The driving circuit includes odd line enable for the odd sub-pixels, even line enable for the even sub-pixels, a dataline shared by odd sub-pixels and even sub-pixels, a scan line, a supply line, and a common line. The invention can improve the uniformity of the AMOLED panel and reduce the number of required data line.

Abstract: A shift register includes at least one stage circuit that has at least three voltage control switches, a storage element, and a first clock signal, a second clock signal and a third clock signal to control various switches. Input signals are stored in the capacitor and sequentially transferred to the next stage. During transferring to the next stage, pixel switches of one row on the panel display are activated to receive information delivered from the data end for displaying on the pixels. The clock signals have the characteristics that the first clock signal, second clock signal and third clock signal are not at the same certain potential concurrently to prevent the switches of each stage (the second and third switches) from forming a DC path and burning out.

Abstract: An organic light-emitting diode display device has a scan line layout that has different sizes of pixel areas depending on their scan line distance to control the display areas. For the line which has a shorter distance and lower voltage drop, the pixel display area is greater. On the contrary, the line which has a greater distance and greater voltage drop, the pixel display area is smaller. Therefore each display pixel has the same current density. Thereby the entire organic light-emitting diode display device has an uniform display brightness.

Abstract: Apparatus for extending the range of effective communication of high speed digital video data between remote devices, such as a microprocessor and a flat panel display, having associated connectors. A fiber optic cable comprising a single optical fiber provides a shared optical path for signal transmission between the connectors. Electrooptic converters are provided for converting the electrical signals sent and received by each of the connectors to optical form for transmission over the single-fiber cable.

Abstract: A shift register includes at least one stage circuit that has at least three voltage control switches, a storage element, and a first clock signal, a second clock signal and a third clock signal to control various switches. Input signals are stored in the capacitor and sequentially transferred to the next stage. During transferring to the next stage, pixel switches of one row on the panel display are activated to receive information delivered from the data end for displaying on the pixels. The clock signals have the characteristics that the first clock signal, second clock signal and third clock signal are not at the same certain potential concurrently to prevent the switches of each stage (the second and third switches) from forming a DC path and burning out.

Abstract: A power control method for a portable electronic device. The portable electronic device comprises a power supply unit and a volatile memory for storing data when the power supply unit supplies power thereto. First, the portable electronic device is set to enter a deep sleep mode. Then, data accessed from the volatile memory is transferred to a non-volatile memory. Finally, except for maintaining sufficient power to restore the device, the power supply unit is turned off.

Abstract: A method and apparatus for achieving an active matrix OLED display device which consists of a plurality of pixel devices with uniform luminance are described. Each of the pixel devices includes a driver unit to drive the OLED to illuminate and a compensation unit to adjust Vsg of the driver unit to compensate for the characteristic variations of the driver unit, thereby the luminance of the display device is less affected by the characteristic variations of the driver unit.

Abstract: Apparatus for extending the range of effective communication of high speed digital video data between remote devices, such as a microprocessor and a flat panel display, having associated DVI standard connectors. A fiber optic cable comprising a plurality of fibers provides optical paths for signal transmission between the DVI connectors. Electrooptic converters are provided for converting the electrical signals sent and received by each of the connectors to optical form for transmission over the optical fiber cable.

Abstract: A parallelepiped time box is disclosed. The time box comprises two elongate upper bodies each including a central block of parallelepiped and two side blocks of cube; a base including three parallelepiped block means wherein a central one of the block means is recessed to form a space; a clock received in the space; and a plurality of stickers each adhered to surfaces of two adjacent block and block means, two adjacent blocks, or two adjacent block means for attaching the blocks of the upper bodies, the block means of the base, and the upper bodies and the base together. A first folding line or second folding line is formed between each pair of the adhered block and block means, the blocks, and the block means. The blocks and block means can be folded or unfolded to expose or enclose the clock.

Abstract: A digital driving method and apparatus for active matrix organic light emitting diode mainly includes a plurality of pixel structures. Program display separated driving scheme is achieved by controlling the electric potential of the supply line. During the image data program period, the electric potential of the supply line is held at zero potential (GND) to disable the OLED from lighting. When to display the image data, the supply line is connected to a positive electric potential to allow the OLED to light.

Abstract: A novel driving method targeting area color organic light emitting diode display devices aims at resolving the problems of poor color balance and uneven luminosity on the display panel resulting from different luminous materials.

Abstract: A double-side display device mainly employs the advantage of the transparent cathode that enables an OLED display device to illuminate on two sides concurrently or adopts a novel design for a conventional single side display OLED such that only one driving module is needed to output signals to display the same picture on the positive (anode) side and the negative (cathode) side concurrently. While the displayed pictures and characters are inverse in terms of the left and the right directions, they may be controlled and rectified through software. Thus on the same OLED display panel, two large display zones may be designed and setup to display on the positive (anode) side and the negative (cathode) side.

Abstract: A helmet having a warning device includes at least one illuminator externally mounted on a helmet body. A solar power supplying device has a solar panel fixedly mounted on a top surface of the helmet body for absorbing solar energy, which can be converted into electrical energy by means of a control circuit board and saved to an accumulator. The accumulator supplies the illuminator with required electricity to generate illumination. The control circuit board can detect if there is any solar energy gathered by the solar panel so as to automatically control the illuminator to generate illumination or not. A switch, when the illuminator automatically generates illumination, can be activated again to forcibly control the illuminator to continually generate illumination or not.

Abstract: A security monitoring system with addressable capability is provided. This system allows a plurality of video cameras to be connected to the security guard room via a single cable instead of a plurality of dedicated cables, as in the prior art. The security monitoring system comprises the following: a cable; a central control unit connected at the first end of the cable, capable of issuing a first signal; at least one addressable video camera connected at the second end of the cable connected to the central control unit; and a monitoring device for displaying a second signal. The addressable video camera receives the first signal from the central control unit and compares the first signal with a preset value; if these match, the addressable video camera sends out a second signal via the cable back to the central control unit. This second signal is then displayed on the monitoring device coupled to the monitor.

Abstract: This method of driving a passive OLED monitor makes use of the circuit operating scan line and data line to drive the circuit, disconnects the scan line and the data line from the scan line driven chip and the data line driven chip respectively, lets the scan line driven chip send a scan signal to the scan line, disconnects the scan line and the scan line driven chip when the connection of the scan signal between the scan line and scan line driven chip is interrupted, provides another scan signal to another scan line to connect another scan line and scan line driven chip after the scan line driven chip is delayed.

Abstract: A method for generating an uniform luminosity for displaying contents on an organic light emitting diode display device that include a plurality of pictures and a plurality of pixels has a driver circuit in the display device to light the pictures and pixels. The method includes: (A) setting a unit time which is the time of the driver chip to scan every pixel; (B) calculating the multiple of the area of every picture; (C) obtaining the multiple of the maximum area; and (D) calculating the multiple of the area of every picture according to step (B).

Abstract: A duplex communication apparatus for motor vehicle comprises a sensor, a first cellular phone, an alarm, a RF module, a first decoder, a CPU, a memory, an input, an output, a voice generator, a DTMF decoder, and a speaker. First cellular phone and alarm are switched to a ready state when a motor vehicle owner leaves the motor vehicle so that once sensor or both sensor and alarm enabled the apparatus is activated, whereby a two-way communication is established between the owner and the person at the motor vehicle through sensor, CPU, voice generator, a second cellular phone carried by the owner, and speaker.

Abstract: A duplex communication apparatus for motor vehicle comprises a sensor, a first cellular phone, an alarm, a RF module, a first decoder, a CPU, a memory, an input, an output, a voice generator, a DTMF decoder, and a speaker. First cellular phone and alarm are switched to a ready state when a motor vehicle owner leaves the motor vehicle so that once sensor or both sensor and alarm enabled the apparatus is activated, whereby a two-way communication is established between the owner and the person at the motor vehicle through sensor, CPU, voice generator, a second cellular phone carried by the owner, and speaker.

Abstract: An apparatus for preventing plasma etching wafer clamp is disclosed in a process chamber. The apparatus comprises a pedestal, a bottom electrode, a wafer clamp, a semiconductor wafer, a quartz ring, a top electrode, a cooling plate, a anodize, and a gas hole. The wafer clamp is used to secure the semiconductor wafer. However, the wafer clamp includes a clamp ring, a concave holder, and a depression. The clamp ring is used to support the semiconductor wafer. The concave holder has a semi-elliptical surface, polymer being formed on the backside of the concave holder to prevent plasma etching in the deposition or etching process, into the clamp ring. Then The depression is designed, higher position, adjacent the concave holder.