A display device includes a first scan line to receive a first scan signal, a second scan line to receive a second scan signal, a sweep signal line to receive a sweep signal, a first data line to receive a first data voltage, a second data line to receive a second data voltage, and a sub-pixel connected to the first scan line, the second scan line, the sweep signal line, the first data line, and the second data line. The sub-pixel includes a light emitting element, a first pixel driver configured to generate a control current according to the first data voltage of the first data line, and a second pixel driver configured to generate a driving current applied to the light emitting element according to the second data voltage of the second data line.

The invention discloses a driving method and a device for a light-emitting element. The method includes: acquiring a display image; calculating a backlight brightness required for the display image; and selecting at least one pulse signal from the preset plurality of pulse signals to drive the light emitting element according to the backlight brightness.

The present embodiments disclose a pixel driving circuit and a display device including the same. A pixel driving circuit according to an embodiment of the present disclosure includes a first pixel circuit configured to control light-emission and non-emission of the luminous element in response to a control signal applied to each of a plurality of subframes constituting a frame during a light-emitting period and a second pixel circuit storing a bit value of image data in a data writing period and generating the control signal based on the bit value and a clock signal in the light-emitting period.

A display device includes a light source, a light modulator, and a control apparatus, the light modulator includes a digital micromirror array including micromirrors and is arranged on a light path of light emitted by the light source and configured to modulate the light emitted by the light source based on a target image and luminance of the light source to obtain a grayscale image. The control apparatus is configured to control a driving current of the light source to adjust the luminance of the light source in different periods within a frame image, and to cause a driving current overdrive pulse of the light source during at least one of the periods, so that a display bit depth of the grayscale image increases from n to n+i and the periods correspond to bitplanes of the grayscale image in one-to-one correspondence, i≥1 and i is an integer.

A display module is disclosed. The present display module comprises: a driving circuit layer provided on a substrate and comprising first driving circuits and second driving circuits; and a pixel array provided on the driving circuit layer and having pixels arranged in a matrix, the pixels each including a plurality of inorganic light-emitting devices, wherein: the first driving circuits provided for each pixel drive the plurality of inorganic light-emitting devices included in each pixel on the basis of data voltages applied through data lines; the second driving circuits generate control signals for driving the first driving circuits on the basis of clock signals applied through clock lines and provide same to the first driving circuits; the driving circuit layer comprises a first metal layer, a second metal layer, and at least one third metal layer; and the clock signals are applied from the clock lines to the second driving circuits through jumping lines formed in one of the at least one third metal layer.

A display device includes: a first pixel driver to generate a control current; a second pixel driver to generate a driving current, and control a period during which the driving current flows, based on the control current; and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes: a first transistor to generate the control current based on a first data voltage; and a second transistor to provide the first data voltage to a first electrode of the first transistor based on a scan write signal from a scan write line. The second pixel driver includes: a third transistor to generate the driving current based on the control current; and a fourth transistor to provide a second data voltage to a first electrode of the third transistor based on a scan write signal from the scan write line.

A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.

A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.

A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.

An electronic device includes a light emitting unit, a current source, voltage comparator, and an emission control unit. The voltage comparator is configured to receive a voltage data and a ramp signal and output a comparison signal according to the voltage data and the ramp signal. The emission control unit is configured to output a driving current to the light emitting unit according to the supply current, the emission enable signal, and the comparison signal. The ramp signal is a first ramp signal during a first frame, and the ramp signal is a second ramp signal during a second frame after the first frame. The emission control unit is configured to be operated in a first mode based on the first ramp signal, and the emission control unit is configured to be operated in a second mode based on the second ramp signal.