Abstract: A pixel circuit includes a capacitor, a light emitting control transistor, a driving transistor, and multiple light emitting transistors. The light emitting control transistor includes a gate electrode coupled to a light emitting control signal, a source electrode coupled to a supply voltage, and a drain electrode. The driving transistor includes a gate electrode coupled to the capacitor, a source electrode coupled to the drain electrode of the light emitting control transistor, and a drain electrode. Each light emitting transistor includes a gate electrode coupled to a respective light emitting signal, a source electrode coupled to the drain electrode of the driving transistor, and a drain electrode coupled to a respective light emitting element. Each light emitting signal turns on the respective light emitting transistor during a respective light emitting period within a frame period to cause the respective light emitting element to emit a light.

Abstract: A pixel circuit includes a capacitor, a light emitting control transistors, a driving transistor, and multiple light emitting transistors. The light emitting control transistor includes a gate electrode coupled to a light emitting control signal, a source electrode coupled to a supply voltage, and a drain electrode. The driving transistor includes a gate electrode coupled to the capacitor, a source electrode coupled to the drain electrode of the light emitting control transistor, and a drain electrode. Each light emitting transistor includes a gate electrode coupled to a respective light emitting signal, a source electrode coupled to the drain electrode of the driving transistor, and a drain electrode coupled to a respective light emitting element. Each light emitting signal turns on the respective light emitting transistor during a respective light emitting period within a frame period to cause the respective light emitting element to emit a light.

Abstract: Embodiments of pixel circuits for light emitting elements are disclosed herein. In one example, a pixel circuit includes a pixel driver and a bridge transistor. The pixel driver is configured to receive a data signal and drive a light emitting element based on the data signal. The bridge transistor includes a gate terminal receiving a first bias signal, a source terminal coupled to the pixel driver, a drain terminal coupled to a terminal of the light emitting element, and a body terminal coupled to the source terminal or receiving the data signal. The first bias signal controls a voltage at the source terminal.

Abstract: An apparatus includes an active region, a source driving circuit, and a light emitting driving circuit. The active region includes an array of light emitting elements corresponding to an array of pixels arranged in M rows and N columns. The number of the array of light emitting elements is k times of the number of the array of pixels. The apparatus includes xM light emitting lines and (k/x)N source lines, wherein x is a positive fraction, and each of xM and (k/x)N is a positive integer. The source driving circuit is operatively coupled to the active region via the (k/x)N source lines and configured to write display data of a frame to the array of light emitting elements. The light emitting driving circuit is operatively coupled to the active region via the xM light emitting lines and configured to cause the array of light emitting elements to emit light.

Abstract: Provided are integrated organic light emitting diode (OLED) display apparatus and methods for making the same. In one example, the apparatus includes driving logic on a first substrate of a first die, a plurality of pixel circuits on a second substrate of a second die, and a plurality of OLEDs above the plurality of pixel circuits. The first substrate is made of single-crystal silicon or a compound semiconductor. The second substrate is made of single-crystal silicon or a compound semiconductor. Each OLED corresponds to a respective one of the plurality of pixel circuits. The second die having the plurality of pixel circuits and OLEDs is mounted on the first die having the driving logic. Each pixel circuit is electrically connected to the driving logic through at least one of a plurality of vertical interconnect accesses (vias) penetrating the second substrate of the second die.

Abstract: An apparatus includes an active region, a source driving circuit, and a light emitting driving circuit. The active region includes an array of light emitting elements corresponding to an array of pixels arranged in M rows and N columns. The number of the array of light emitting elements is k times of the number of the array of pixels. The apparatus includes xM light emitting lines and (k/x)N source lines, wherein x is a positive fraction, and each of xM and (k/x)N is a positive integer. The source driving circuit is operatively coupled to the active region via the (k/x)N source lines and configured to write display data of a frame to the array of light emitting elements. The light emitting driving circuit is operatively coupled to the active region via the xM light emitting lines and configured to cause the array of light emitting elements to emit light.