US Pat. No. 11,032,921

FLEXIBLE DISPLAY DEVICE AND MOBILE TERMINAL

Everdisplay Optronics (Sh...

1. A flexible display device comprising:a flexible display panel comprising a first side and a second side, wherein the first side is opposite to the second side;
a roll-up mechanism comprising a master shaft for rolling up and unrolling the flexible display panel, wherein the first side of the flexible display panel is fixed to the master shaft;
a support mechanism comprising a plurality of supporting members, wherein the supporting members are articulated each other;
a housing for receiving the roll-up mechanism;
wherein the supporting members are stored under the flexible display panel, when the flexible display panel is rolled up;
wherein the supporting members are leaned to a backside surface of the flexible display panel, when the flexible display panel is unrolled;
wherein a surface of the support mechanism comprises a guiding groove, and a bottom of the housing is sliding inlaid in the guiding groove, wherein the flexible display panel is rolling up and unrolling in response to sliding movements, in the guiding groove, of the housing.

US Pat. No. 10,943,528

PIXEL CIRCUIT, METHOD OF DRIVING THE SAME AND DISPLAY USING THE SAME

Everdisplay Optronics (Sh...

1. A pixel circuit, comprising a compensation circuit, a driving circuit, a light-emitting diode, a capacitor and an external power supply,wherein the compensation circuit is electrically connected to the driving circuit through a first node; the external power supply, the driving circuit and the light-emitting diode are sequentially connected in series; and the capacitor is located between the first node and the external power supply,
the compensation circuit is externally connected to a data signal and a first scanning signal and is configured to set a voltage of the first node to a first voltage under the first scanning signal, wherein the first voltage is a voltage obtained upon compensating a voltage of the data signal by a compensation transistor of the compensation circuit,
the capacitor is configured to maintain the voltage of the first node at the first voltage, and
the driving circuit is externally connected to a first control signal and is configured to generate a driving current according to the first control signal so as to drive the light-emitting diode to emit light, wherein the driving current is obtained according to the first voltage, the external power supply and a threshold voltage of a driving transistor in the driving circuit; and the driving transistor and the compensation transistor are configured to share a same gate electrode,
wherein the compensation circuit comprises a data strobe transistor, the compensation transistor and a switch transistor, and
a drain electrode of the data strobe transistor is electrically connected to a source electrode of the compensation transistor; a source electrode of the data strobe transistor is electrically connected to the data signal; a gate electrode of the data strobe transistor is electrically connected to the first scanning signal; a gate electrode of the compensation transistor is electrically connected to a gate electrode of the driving transistor through the first node, and a drain electrode of the compensation transistor is electrically connected to a source electrode of the switch transistor; a drain electrode of the switch transistor is electrically connected to the gate electrode of the compensation transistor; and a gate electrode of the switch transistor is electrically connected to the first scanning signal.

US Pat. No. 10,909,907

PIXEL CIRCUIT, DRIVING METHOD, PIXEL STRUCTURE AND DISPLAY PANEL

Everdisplay Optronics (Sh...

1. A pixel circuit, comprising a compensating unit, a driving unit, a light emitting unit, a capacitor, and an external power supply, whereinthe compensating unit is electrically coupled to the driving unit through a first node, the external power supply, the driving unit and the light emitting unit are coupled in series sequentially, and the capacitor is coupled between the first node and the external power supply;
the compensating unit is configured to receive a data signal and a first scanning signal, and to set a voltage of the first node to a first voltage under the control of the first scanning signal, wherein the first voltage is obtained by compensating for a voltage of the data signal through a compensating transistor in the compensating unit;
the capacitor is configured to maintain the voltage of the first node at the first voltage;
the driving unit comprises an isolating transistor, a driving transistor and a light emitting control transistor coupled between the external power supply and the light emitting unit in series sequentially through their source and drain electrodes;
both gates of the light emitting control transistor and the isolating transistor are configured to receive a first control signal, and the driving transistor and the compensating transistor are transistors with common gate region; and
the driving transistor is configured to generate a driving current to drive the light emitting unit to emit light when the isolating transistor and the light emitting control transistor are turned on under the control of the first control signal, wherein the driving current is obtained according to the first voltage, a voltage of the external power supply, and a threshold voltage of the driving transistor in the driving unit,
wherein
the compensating transistor is formed by the common gate region, a first electrode region and a second electrode region,
the driving transistor is formed by the common gate region, a third electrode region and a fourth electrode region,
the first electrode region, the second electrode region, the third electrode region and the fourth electrode region are disposed separately and are in contact with the common gate region, and
the common gate region is disposed between the first electrode and the second electrode of the compensating transistor and the third electrode and the fourth electrode of the driving transistor to be shared by the compensating transistor and the driving transistor.