Patent
Organic electoluminescent display and driving method thereof
TLDR
A pixel circuit of an organic EL display includes an EL device, first and second switching devices, a driving thin film transistor, and a capacitor as mentioned in this paper, and the first switching device switches data voltages applied to data lines in response to the selection signal applied to a scan line.Abstract:
A pixel circuit of an organic EL display includes an EL device, first and second switching devices, a driving thin film transistor, and a capacitor. The first switching device switches data voltages applied to data lines in response to the selection signal applied to a scan line and the second switching device connects gate and drain of the driving thin film transistor in response to a compensation signal applied to a compensation line. The driving thin film transistor supplies electric current to the organic EL device in response to the data voltage inputted to a gate from the first switching device and the capacitor maintains the data voltage applied to the gate of the driving thin film transistor for a predetermined period. At this time, the characteristic deviation of the transistor is compensated by connecting the gate and the drain of the driving thin film transistor by applying the compensation signal to the compensation line before applying the data voltage, and then the data voltages are applied to the data lines after cutting off the compensation signal. In this manner, the characteristic deviation of the driving thin film transistors can be compensated.read more
Citations
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Patent
Active matrix display devices
TL;DR: In this paper, an active matrix LED display has a light-dependent device for detecting the brightness of the display element and threshold voltage measurement circuitry for measuring a threshold voltage of a pixel the drive transistor.
Patent
Organic electroluminescent display device
TL;DR: An organic electroluminescent device includes first and second substrates attached by a seal pattern, array elements including a plurality of thin film transistors formed on the first substrate, a first electrode formed on a rear surface of the second substrate, where the plurality of electrode separators is made of an insulating material defining sub-pixel regions that correspond to each thin film transistor.
Patent
Light emitting display, display panel, and driving method thereof
TL;DR: In this article, a light emitting display for compensating for the threshold voltage of transistor or mobility and fully charging a data line is presented, where a transistor and first through third switches are formed on a pixel circuit of an organic EL display.
Patent
Display device and driving method thereof
Bong-Hyun You,Min-Koo Han +1 more
TL;DR: In this article, a controller generates a touch sync signal for controlling timing of a touch sensing period and a display period in each of a plurality of frames in a touch display device.
Patent
Pixel circuit and display device
TL;DR: In this paper, a pixel circuit is proposed to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn reliably prevent deterioration of uniformity, where pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts.
References
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Patent
Active matrix light emitting diode pixel structure and concomitant method
TL;DR: In this article, the pixel structures and methods that improve brightness uniformity by reducing current nonuniformities in a light-emitting diode of the pixel structure are disclosed.
Patent
Interactive advertising system for on-line terminals.
TL;DR: In this article, a new system for providing advertising information into an interactive system having a plurality of remotely located terminals (12) is disclosed, where each terminal includes a video display unit (20), logic (19), and a video storage medium such as a hard disc (18) in addition to the normal functions of the interactive system of which an ATM is an example.
Patent
Automatic financial account processing system
TL;DR: In this paper, a closed loop, automatic processing of typical financial transactions, including loans, setting up checking, savings and individual retirement accounts, obtaining cashier's checks, ordering additional checks, issuing credit and debit cards, wire transfering money, and so on.
Patent
Automated document processing system using full image scanning
TL;DR: In this article, a document processing system comprises an input receptacle (16) for receiving documents, a transport mechanism (18) receives the documents from the input receiver (16), and transports the documents past a full image scanner (12) and a discrimination unit (14).
Patent
Coin counter/sorter and coupon/voucher dispensing machine and method
Jens H. Molbak,Vae E. Sun +1 more
TL;DR: A coin sorting and counting machine and a method for operating it to automatically dispense cash vouchers based on the value of the counted coins, manufacturers' coupons and store coupons were presented in this paper.