A display apparatus with high display quality is provided. A high-resolution display apparatus is provided. The display apparatus includes a plurality of pixels, and the pixels each include a light-emitting device, a first transistor, a second transistor, a third transistor, a fourth transistor, and a first capacitor. One electrode of the light-emitting device is electrically connected to one of a source and a drain of the first transistor, one of a source and a drain of the second transistor, and one electrode of the first capacitor. A gate of the second transistor is electrically connected to the other electrode of the first capacitor, one of a source and a drain of the third transistor, and one of a source and a drain of the fourth transistor. One frame period of each of the pixels includes a period in which the first transistor and the fourth transistor are each in a conduction state.

A control circuit for a low-temperature poly-silicon array controls the low-temperature poly-silicon array including M rows×N columns of pixel units. The control circuit includes N operational amplifiers, a comparison unit, and a pixel input switch control unit. The comparison unit determines pixel values of N red subpixels, N green subpixels, and N blue subpixels in at least one row of pixel units of the M rows of pixel units are the same as each other. The pixel input switch control unit controls, when the pixel values of the N red subpixels, the N green subpixels, and the N blue subpixels in the at least one row of pixel units of the M rows of pixel units are the same as each other, the N red pixel input switches, the N green pixel input switches, and the N blue pixel input switches to be all turned on.

Disclosed are a display panel in which a unit pixel is divided into a wide-angle area and a narrow-angle area in which at least sub-pixel is disposed and light emission is individually and selectively performed, a display device including the same, and a manufacturing method thereof. A semi-cylindrical lens is disposed in the wide-angle area so as to cover a plurality of sub-pixels. Semi-spherical lenses are disposed in the narrow-angle area so as to cover sub-pixels respectively. Therefore, a direction of light emitting from a light-emitting layer is controlled by adjusting a refractive index of each of the lenses in the wide-angle area and the narrow-angle area. Thus, a viewing angle is controlled.

A driving circuit includes a first transistor, a second transistor and a third transistor. The first transistor has a first terminal connected to a first voltage level, a second terminal, and a third terminal The second transistor has a first terminal connected to the second terminal of the first transistor, a second terminal connected to a second voltage level, and a third terminal connected to the third terminal of the first transistor. The third transistor has a first terminal connected to the first terminal of the second transistor. The first transistor and the second transistor are low temperature poly-silicon transistors, and the third transistor is an oxide semiconductor transistor.

It is an object to suppress deterioration of characteristics of a transistor in a driver circuit. A first switch for controlling whether to set a potential state of an output signal by being turned on and off in accordance with the first input signal, and a second switch for controlling whether to set a potential state of an output signal by being turned on and off in accordance with the second input signal are included. A first wiring and a second wiring are brought into electrical continuity by turning on and off the first switch or the second switch.

A display device capable of improving image quality is provided. A display device includes a plurality of pixel blocks in a display region. The pixel blocks each include a first circuit and a plurality of second circuits. The first circuit has a function of adding a plurality of pieces of data supplied from a source driver. The second circuit includes a display element and has a function of performing display in accordance with the added data. One pixel has a configuration including one second circuit and an component of the first circuit that is shared. When the first circuit is shared by a plurality of pixels, the aperture ratio can be increased.

A driver system controls a plurality of light emitting diodes (LEDs). The driver system includes a first driver to provide an LED current to each of the plurality of LEDs. The first driver includes a current mirror for the LED current provided to the plurality of LEDs. The driver system also includes a second driver to modulate the LED current provided to the plurality of LEDs.

This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.

To provide a display device capable of displaying a plurality of images by superimposition using a plurality of memory circuits provided in a pixel. A plurality of memory circuits are provided in a pixel, and signals corresponding to images for superimposition are retained in each of the plurality of memory circuits. In the pixel, the signals corresponding to the images for superimposition are added to each of the plurality of memory circuits. The signals are added to the signals retained in the memory circuits by capacitive coupling. A display element can display an image corresponding to a signal in which a signal written to a pixel through a wiring is added to the signals retained in the plurality of memory circuits. Reduction in the amount of arithmetic processing for displaying images by superimposition can be achieved.

A semiconductor device includes first to tenth transistors and first to fourth capacitors. Gates of the first and the fourth transistors are electrically connected to each other. First terminals of the first, second, fifth, and eighth transistors are electrically connected to a first terminal of the fourth capacitor. A second terminal of the fifth transistor is electrically connected to a gate of the sixth transistor and a first terminal of the second capacitor. A second terminal of the eighth transistor is electrically connected to a gate of the ninth transistor and a first terminal of the third capacitor. Gates of the second, seventh, and tenth transistors are electrically connected to first terminals of the third and fourth transistors and a first terminal of the first capacitor. First terminals of the sixth and seventh transistors are electrically connected to a second terminal of the second capacitor.