Abstract:
An optical touch screen apparatus in which an oxide semiconductor transistor is used as a light sensing device, and a method of driving the optical touch screen apparatus. The optical touch screen apparatus includes an array including a plurality of light sensing pixels for sensing incident light, a gate driver for providing each of the light sensing pixels with a gate voltage and a reset signal and a signal output unit for receiving a light sensing signal from each of the plurality of light sensing pixels to output a data signal. The gate driver includes a plurality of gate lines that provide a gate voltage to each of the light sensing pixels and at least one reset line that provides a reset signal to each of the light sensing pixels and is electrically connected to the plurality of light sensing pixels.
Abstract:
A semiconductor device may include a composite represented by Formula 1 below as an active layer. x(Ga2O3).y(In2O3).z(ZnO) Formula 1 wherein, about 0.75≦x/z≦about 3.15, and about 0.55≦y/z≦ about 1.70. Switching characteristics of displays and driving characteristics of driving transistors may be improved by adjusting the amounts of a gallium (Ga) oxide and an indium (In) oxide mixed with a zinc (Zn) oxide and improving optical sensitivity.
Abstract translation:半导体器件可以包括由下面的式1表示的复合物作为有源层。 x(Ga 2 O 3)y(In 2 O 3)z(ZnO)式1其中约0.75< lE; x / z和nlE;约3.15和约0.55≤n1E; y / z& 约1.70。 可以通过调节与锌(Zn)氧化物混合的镓(Ga)氧化物和铟(In))的量来提高驱动晶体管的开关特性并提高光学灵敏度。
Abstract:
Photosensing transistors, display panels employing a photosensing transistor, and methods of manufacturing the same, include a gate layer, a gate insulation layer on the gate layer, a channel layer on the gate insulation layer, an etch stop layer on a partial area of the channel layer, a source and a drain on the channel layer and separated from each other with the etch stop layer being interposed between the source and the drain, and a passivation layer covering the source, the drain, and the etch stop layer, wherein the source is separated from the etch stop layer.
Abstract:
Optical touch screen apparatuses with remote sensing and touch sensing by using a light sensor transistor including an oxide semiconductor transistor. The optical touch screen apparatus includes a pixel array of a plurality of sensing pixels arranged in a plurality of rows and a plurality of columns. Each of the sensing pixels includes a light sensing pixel for sensing light that is irradiated by an external light source and a touch sensing pixel for sensing display light that is reflected by a screen touch. The light sensing pixel includes a first light sensor transistor and a first switch transistor connected each other in series, and the touch sensing pixel includes a second light sensor transistor and a second switch transistor connected each other in series.
Abstract:
Provided is a channel layer for a thin film transistor, a thin film transistor and methods of forming the same. A channel layer for a thin film transistor may include IZO (indium zinc oxide) doped with a transition metal. A thin film transistor may include a gate electrode and the channel layer formed on a substrate, a gate insulating layer formed between the gate electrode and channel layer, and a source electrode and a drain electrode which contact ends of the channel layer.
Abstract:
In a simplified light sensing circuit, a light sensing apparatus including the light sensing circuit, a method of driving the light sensing apparatus, and an image acquisition apparatus and optical touch screen apparatus including the light sensing apparatus, the light sensing circuit includes an oxide semiconductor transistor including a channel layer including an oxide semiconductor material, for each pixel. The oxide semiconductor transistor is configured to operate as a light sensing device that senses light and a switch that outputs light sensing data.
Abstract:
A light sensing circuit using an oxide semiconductor transistor, a method of manufacturing the light sensing circuit, and an optical touch panel including the light sensing circuit. Because the light sensing circuit includes only one light sensor transistor and one switch transistor formed on the same substrate, a structure of the light sensing circuit is simplified. Furthermore, because the light sensor transistor and the switch transistor have the same structure, a method of manufacturing the light sensing circuit is also simplified. Also, since an optical touch panel or an image acquisition apparatus using the light sensing circuit uses the light sensing circuit having a simple structure and does not use a capacitor, the optical touch panel or the image acquisition apparatus may be made thinner and larger.
Abstract:
An optical touch panel may be used remotely to control a large-sized display device. According to a method of fabricating the optical touch panel, an optical sensor transistor for sensing light and a switch transistor for drawing data can be formed together on the same substrate by using a relatively simple process. The optical touch panel may include an optical sensor transistor and a switch transistor. The optical sensor transistor may be configured to sense light and the switch transistor may be configured to draw data from the optical sensor transistor. The optical sensor transistor may include a light sensitive oxide semiconductor material as a channel layer. The switch transistor may include a non-light sensitive oxide semiconductor material as a channel layer.
Abstract:
Example embodiments are directed to light sensing circuits having a relatively simpler structure by using light-sensitive oxide semiconductor transistors as light sensing devices, and remote optical touch panels and image acquisition apparatuses, each including the light sensing circuits. The light sensing circuit includes a light-sensitive oxide semiconductor transistor in each pixel, wherein the light-sensitive oxide semiconductor transistor is configured as a light sensing device, and a driving circuit that outputs data. The light sensing circuit may have a relatively simple circuit structure including a plurality of transistors in one pixel. As a result, the structure and operation of the light sensing circuit may be simplified.
Abstract:
Provided are an image sensor using a light-sensitive oxide semiconductor material as a light-sensitive device and a method of operating the image sensor for acquiring RGB values of incident light in the image sensor, the image sensor includes an array of a plurality of light-sensing cells wherein each of the light-sensing cells includes a light-sensitive oxide semiconductor layer that forms a channel region of an oxide semiconductor transistor. Electronic characteristics of the light-sensitive oxide semiconductor layer vary according to an amount of light irradiated onto the light-sensitive oxide semiconductor layer. Each of the light-sensing cells constitutes a single unit color pixel.