Patent
Light sensing circuit, touch panel including the same and method of driving the same
TLDR
In this article, a light sensing circuit includes a photodiode including a cathode electrode and an anode electrode, a driving transistor for amplifying the current generated in the photodiodes, a capacitor for storing a first initiation voltage transmitted to the driving transistor, a first switching transistor for compensating for a threshold voltage of the driving transistors corresponding to a current scan signal, and a second switching transistors for transmitting the first initiator voltage corresponding to the current scan signals.Abstract:
A light sensing circuit includes a photodiode including a cathode electrode and an anode electrode and for receiving light from the outside and generating a current corresponding to the received light, a driving transistor for amplifying the current generated in the photodiode, a capacitor for storing a first initiation voltage transmitted to the driving transistor, a first switching transistor for compensating for a threshold voltage of the driving transistor corresponding to a current scan signal, and a second switching transistor for transmitting the first initiation voltage corresponding to the current scan signal.read more
Citations
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Patent
Organic Light Emitting Display Device
Hajime Murakami,Yoshiro Mikami,Etsuko Nishimura,Shingo Ishihara,Masao Shimizu,Kenichi Onisawa +5 more
TL;DR: In this paper, two kinds of organic light-emitting (LE) elements are used to prevent the widening of the power lines, the reduction in the aperture ratio and the short circuit between the upper and lower electrodes caused by the roughness of the flattening layers.
Patent
Semiconductor device and method for driving the same
TL;DR: A semiconductor device includes a photodiode, a first transistor, and a second transistor as mentioned in this paper, where the first transistor has a function of supplying a charge corresponding to incident light to a gate, and the second transistor retains the charge accumulated in the gate.
Patent
Pixel circuit, driving method thereof, organic light-emitting display panel and display device
Bo Wu,Xiaojing Qi,Leisen Nie +2 more
TL;DR: In this paper, a pixel circuit is provided with a touch sensing module, a driving transistor and a driving control module, and a light-emitting module, which compensates for a threshold voltage of the driving transistor by a diode connection and a discharging of a storage capacitor.
Patent
Active matrix organic light emitting diode pixel unit circuit and display panel
Wen Tan,Xiaojing Qi,Bo Wu +2 more
TL;DR: In this paper, an active matrix organic light emitting diode, AMOLED pixel unit circuit and a display panel for integrating a touch screen circuit into the AMO LED pixel unit circuits was presented.
Patent
Touch Display Driving Circuit, Driving Method and Display Device
Quanguo Zhou,Xiaojing Qi +1 more
TL;DR: In this paper, a touch display driving circuit, a driving method and a display device is presented, which consists of a data writing control unit, storage unit, a touch sensing unit, and a driving compensation control unit.
References
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Patent
Electroluminescent display devices
TL;DR: In this article, a voltage-programmed current source circuit, a drive transistor and a light sensitive device for sensing the display element light output are used to control the voltage provided to the gate of the drive transistor.
Patent
Active matrix light emitting diode display
TL;DR: In this paper, an active matrix pixel within a display includes a photodiode that is optically connected to a light emitting diode within the pixel in order to detect a portion of the luminous flux that is generated by the diode.
Patent
Image display device
Furukawa Yukio,Sakata Hajime +1 more
TL;DR: In this paper, a light source with small light output is used to increase the screen luminance of an image display device which uses a light-source with small output, and the scanning lines are formed with light beams emitted by the respective light emitting elements.
Patent
Pixel and organic light emitting display using the same
TL;DR: In this paper, a pixel circuit including a first transistor supplying a current to the LED corresponding to data signal applied to a data line, a capacitor coupled to the first transistor and charged by the data signal, a second transistor coupled to a scan line and the data line supplying the data signals to the capacitor when a scan signal is being supplied, and a third transistor coupled between the first transistors and the LED and having a gate coupling to a gate of the transistors.
Patent
Image sensing device using MOS-type image sensing element whose threshold voltage of charge transfer switch and reset switch is different from that of signal output transistor
Tetsunobu Kochi,Shigetoshi Sugawa,Isamu Ueno,Katsuhisa Ogawa,Toru Koizumi,Katsuhito Sakurai,Hiroki Hiyama +6 more
TL;DR: In this article, a photoelectric conversion device has a plurality of pixel cells each of which includes a photo-electric conversion element, a field effect transistor having the gate area for storing signal charge generated by the photo conversion element and the source-drain path for outputting a signal corresponding to the signal charge stored in the gate.