A highly convenient display system is provided. A display system that enables a screen to be operated easily with a laser pointer is provided. A display system that enables a screen to be operated by a large number of people is provided. The display system includes a light-emitting apparatus and a display device. The light-emitting apparatus includes a means for emitting visible laser light and a means for emitting invisible light. The display device includes a display unit including a means for displaying an image and a means for obtaining positional information on a portion irradiated with the visible light, and a means for receiving the invisible light. The display system has a function of performing processing in accordance with the positional information when the invisible light is received.

A display device includes a plurality of pixel electrodes including a first pixel electrode, a first electrode adjacent to the first pixel electrode and arranged separated from the first pixel electrode, a bank covering an edge part of the first pixel electrode, an end part of the first electrode, and a region between the first pixel electrode and the first electrode, a first organic layer arranged above the first pixel electrode, above the first electrode and above the bank, a second organic layer arranged above the first organic layer overlapping the first pixel electrode, a third organic layer arranged above the second organic layer, above the first organic layer overlapping the first electrode, and above the first organic layer overlapping the bank, an opposing electrode arranged above the third organic layer overlapping the first pixel electrode, and a second electrode arranged above the third organic layer overlapping the first electrode.

According to one embodiment, a sensor includes a light emitter and a light sensor. The light emitter includes a first electrode, a second electrode, and a first light emitting layer. The second electrode is light-transmissive. The first light emitting layer is provided between the first electrode and the second electrode. The light sensor includes a third electrode, a fourth electrode, a fifth electrode, a first photoelectric conversion layer, and a second photoelectric conversion layer. the fourth electrode is light-transmissive. The fifth electrode is provided between the third electrode and the fourth electrode. The fifth electrode is light-transmissive. The first photoelectric conversion layer is provided between the third electrode and the fifth electrode. The second photoelectric conversion layer is provided between the fourth electrode and the fifth electrode.

The invention relates to a drive sensing structure, applicable to an environment of an organic light-emitting display device. The driving sensing structure includes: an organic diode, a driving circuit, a sensing circuit, and a voltage maintaining circuit; wherein, the driving circuit is used to receive a control signal and generate a corresponding voltage signal to drive the organic diode to emit light stably. The sensing circuit is used to convert a sensing voltage generated by the organic diode after receiving the light source into an image electrical signal. The voltage maintaining circuit is used to adjust the voltage signal of the driving circuit to prevent the voltage signal of the driving circuit from drifting. Thereby, the bidirectional organic light-emitting display device can be used not only as a light-emitting element, but also as a sensor for fingerprint image recognition, palmprint recognition, and touch function, thereby achieving the purposes of cost reduction and wide applicability.

A display device having a photosensing function is provided. A display device having a biometric authentication function typified by fingerprint authentication is provided. A display device having a touch panel function and a biometric authentication function is provided. The display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and a light-receiving element. The first substrate and the light guide plate are provided to face each other. The first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. The first light-emitting element has a function of emitting first light through the light guide plate. The second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving element has functions of receiving the first light and converting the first light into an electric signal and functions of receiving the second light and converting the second light into an electric signal. The first light includes visible light, and the second light includes infrared light.

An organic photodetector includes a first electrode, a second electrode facing the first electrode, and an activation layer between the first electrode and the second electrode, wherein the activation layer includes a compound represented by Formula 1. An electronic apparatus includes the organic photodetector. In Formula 1, R.sub.1 to R.sub.6 and a3 to a6 are as described in the specification.

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Disclosed is a CMOS element. The CMOS element comprises a substrate, a first metal layer, an insulation layer and a first type metal oxide semiconductor layer; and the element further comprises a first, a second and a third metal parts which are located on the insulation layer, and the first and the second metal parts are located at two sides of the first type metal oxide semiconductor layer and both contacts therewith; a second type organic semiconductor layer, located in a gap between the second, and the third metal parts and on the second, the third metal parts where are adjacent to the gap; a passivation layer, located on the first, the second and the third metal parts, the first type metal oxide semiconductor layer and the second type organic semiconductor layer; a third metal layer located on the passivation layer corresponding to the second type organic semiconductor layer.

A biosensor includes a stretchable substrate, a pixel defining layer on the stretchable substrate and including a first pixel defining layer at least partially defining a first opening and a second pixel defining layer at least partially defining a second opening, a photo-detecting element at least partially in the first opening, and a first light emitting element at least partially in the second opening, wherein an area of the first pixel defining layer is equal to or greater than about twice an area of the first opening.

A thin-film transistor substrate is disclosed, which comprises a base layer; a semiconductor layer disposed on the base layer; a source electrode and a drain electrode disposed on the semiconductor layer; and a gate electrode disposed on the base layer and corresponding to the semiconductor layer; wherein the semiconductor layer includes a first region, a second region, and a third region, in which the first region corresponds to the gate electrode layer, the second region corresponds to the source electrode, and the third region corresponds to the drain electrode; and wherein the first region has a first thickness, the second region has a second thickness, and the third region has a third thickness, and the first thickness is greater than the second thickness or the third thickness.

A display device provided with a polarising photovoltaic module includes (a) a plurality of polarisers; (b) a plurality of pixels which emit or transmit light referred to as image light; (c) a plurality of photovoltaic active zones and a plurality of openings, two adjacent photovoltaic active zones forming an opening and said photovoltaic active zones being arranged between the pixels and the polarisers; wherein said polarisers are semi-reflective and are made up of one or more surfaces selected among planar surfaces, which are concave or convex, and have parabolic, conical, pyramidal, tetrahedral, semi-cylindrical or cylindrical-parabolic shapes, said polarisers being arranged so as to concentrate, by reflection, a first linear polarised component of the ambient light onto said photovoltaic active zones, as well as to transmit, through the polarising photovoltaic module, a second linear polarised component of the ambient light or of the image light.