Abstract: Disclosed are a circuit and a method for detecting a driving current of an organic light emitting diode display device, and an organic light emitting diode display device, the method includes: after detecting for a predetermined time period, obtaining an output voltage of the integrating circuit, and comparing the output voltage with at least one reference voltage; in the case that the output voltage and the reference voltage satisfy a predetermined condition, adjusting capacitance of a capacitor of the integrating circuit.

Abstract: A digital to analog converter, a method for driving the same, and a display device are provided. The digital to analog converter includes: a first resistor string, 2m first multiplexers, a first voltage selector, a second resistor string, a second voltage selector, and a second multiplexer, where the 2m first multiplexers, the first voltage selector, and the second voltage selector operate in cooperation with each other so that the entire second resistor string can be connected in series to the first resistor string for further division.

Abstract: The present disclosure discloses a sampling method, a sampling control method, a sampling device, a sampling control device, a sampling control system, and a display device. The present disclosure provides a sampling method for sampling pixel units disposed on a display substrate, the method including: the controller controlling a plurality of sampling modules to be simultaneously turned on, so that a plurality of sampling modules controlled by the controller are capable of receiving luminance information of the pixel units obtained through sampling of the sampling channel; the controller sequentially controlling a group of sampling channels to be simultaneously turned on, so that the group of sampling channels simultaneously sample the luminance information, and transmit the sampled luminance information to respective sampling modules connected to the group of sampling channels through the output terminals of the group of sampling channels.

Abstract: Embodiments of the present disclosure provide a comparator. The comparator includes a first current source circuit, a pre-amplifier circuit, an amplifier circuit, a comparison circuit, and an output circuit. The first current source circuit is configured to provide a first constant current to the pre-amplifier circuit. The pre-amplifier circuit is configured to amplify a first input signal into a first pre-amplified signal and amplify a second input signal into a second pre-amplified signal based on a first constant current. The amplifier circuit includes a current mirror and a load circuit. The load circuit comprises a differential diode-connected transistor. The comparison circuit is configured to compare the first amplified signal with the second amplified signal. The output circuit is configured to output a first voltage or a second voltage based on a result of the comparison.

Abstract: The present disclosure provides a level shifting circuit which includes a boost subcircuit and a first phase-inverting subcircuit. The boost subcircuit has a first terminal being coupled to an input terminal of the level shifting circuit, a second terminal being coupled to a first high level signal terminal, a third terminal being coupled to a low level signal terminal, a fourth terminal being coupled to a first terminal of the first phase-inverting subcircuit; the first phase-inverting subcircuit has a second terminal being coupled to the first high level signal terminal, a third terminal being coupled to the low level signal terminal, a fourth terminal being coupled to a first output terminal of the level shifting circuit, the first phase-inverting subcircuit is configured to cause the third terminal to be electrically coupled to the fourth terminal when the first terminal thereof receives a high level signal.

Abstract: A digital to analog converter, a method for driving the same, and a display device are provided. The digital to analog converter includes: a first resistor string, 2m first multiplexers, a first voltage selector, a second resistor string, a second voltage selector, and a second multiplexer, where the 2m first multiplexers, the first voltage selector, and the second voltage selector operate in cooperation with each other so that the entire second resistor string can be connected in series to the first resistor string for further division.

Abstract: Provided are an external compensation circuit and method, and display device in the field of display techniques. The external compensation circuit includes a regulation sub-circuit that may collect a driving current loaded to a light-emitting unit and a reference current from a reference current source, and regulate potentials at two nodes connected to a compensation sub-circuit according to the collected current, to enable the compensation sub-circuit to calibrate a data signal to be input to a pixel circuit according to a potential difference between the two nodes.

Abstract: The embodiments of the present disclosure disclose a reference circuit, comprising a current control sub-circuit, a voltage control sub-circuit and a voltage adjustment sub-circuit, wherein the current control sub-circuit outputs current to a first terminal and a second terminal of the voltage control sub-circuit and a first terminal of the voltage adjustment sub-circuit at a ratio of 1:1:n respectively, and the first terminal and the second terminal of the voltage control sub-circuit may cause a voltage at a second terminal of the voltage adjustment sub-circuit to be equal to a voltage at a third terminal of the voltage adjustment sub-circuit upon receiving equal current output by the current control sub-circuit, and the voltage adjustment sub-circuit may adjust a voltage output at an output terminal of the reference circuit to be independent of a temperature when the voltage at the second terminal is equal to the voltage at the third terminal.

Abstract: A current mirror circuit includes: a first transistor and a second transistor connected in series, a third transistor and a fourth transistor connected in series; and further includes: a reference voltage source, a fifth transistor, and a control module connected between the reference voltage source and the fifth transistor. A current mirror is formed by the third transistor and the fourth transistor together with the first transistor and the second transistor, to produce a mirror current at a drain of the third transistor according to a current source coupled to a drain of the first transistor; the control module is configured to control the fifth transistor to operate in the linear region.

Abstract: A method is disclosed for controlling charging/discharging of a capacitor module. The capacitor module includes a plurality of branches connected in parallel, each of which includes a capacitor and a switch connected in series with the capacitor. The method includes measuring a first charge/discharge time for the capacitor module being charged/discharged from an initial voltage to an intermediate voltage, and To adjusting a second charge/discharge time for the capacitor module being further charged/discharged from the intermediate voltage to a target voltage by controlling on/off of at least one of the switches depending on the first charge/discharge time, the intermediate voltage being between the initial voltage and the target voltage. Also disclosed are an apparatus for controlling charging/discharging of a capacitor module and a display apparatus including the apparatus.

Abstract: The present disclosure provides a level shifting circuit which includes a boost subcircuit and a first phase-inverting subcircuit. The boost subcircuit has a first terminal being coupled to an input terminal of the level shifting circuit, a second terminal being coupled to a first high level signal terminal, a third terminal being coupled to a low level signal terminal, a fourth terminal being coupled to a first terminal of the first phase-inverting subcircuit; the first phase-inverting subcircuit has a second terminal being coupled to the first high level signal terminal, a third terminal being coupled to the low level signal terminal, a fourth terminal being coupled to a first output terminal of the level shifting circuit, the first phase-inverting subcircuit is configured to cause the third terminal to be electrically coupled to the fourth terminal when the first terminal thereof receives a high level signal.

Abstract: Embodiments of the present disclosure relate to a digital-to-analog conversion circuit and method, a source driver, and a display apparatus. The digital-to-analog conversion circuit includes a first digital-to-analog converter corresponding to m high bits of (m+n)-bit digital signal and a second digital-to-analog converter corresponding to n low bits, where m and n are integers greater than 0. The first digital-to-analog converter comprises a voltage division module configured to generate 2m reference voltages at equal intervals in voltage; a first voltage selection module configured to select, from the 2m reference voltages, a first voltage corresponding to the m bits; and an operation module configured to generate a second voltage higher than the first voltage by the interval in voltage based on two adjacent reference voltages of the 2m reference voltages and the first voltage.

Abstract: A digital to analog converter circuit, a display panel and a display device are provided. The digital to analog converter circuit includes a voltage dividing unit, a first segmenting unit, a second segmenting unit and a third segmenting unit.

Abstract: Embodiments of the present application provide a digital-to-analog conversion circuit, a method thereof and a display apparatus. The digital-to-analog conversion circuit comprises a voltage dividing sub-circuit, having 2m of voltage dividing signal terminals and 2n-m?1 of sub-voltage dividing signal terminals; a first voltage selecting sub-circuit, configured to receive the first bit to the (n?m)th bit of the digital signal, and convert it into a first analog signal; a second voltage selecting sub-circuit, configured to receive the (n-m+1)th bit to the nth bit of the digital signal and to convert it into a second analog signal; and a buffering sub-circuit, configured to generate an analog signal based on the first analog signal, the second analog signal and the signal from the ith voltage dividing signal terminal and to output the analog signal to an analog signal outputting terminal of the digital-to-analog conversion circuit.

Abstract: Embodiments of the present disclosure relate to a digital-to-analog conversion circuit and method, a source driver, and a display apparatus. The digital-to-analog conversion circuit includes a first digital-to-analog converter corresponding to m high bits of (m+n)-bit digital signal and a second digital-to-analog converter corresponding to n low bits, where m and n are integers greater than 0. The first digital-to-analog converter comprises a voltage division module configured to generate 2m reference voltages at equal intervals in voltage; a first voltage selection module configured to select, from the 2m reference voltages, a first voltage corresponding to the m bits; and an operation module configured to generate a second voltage higher than the first voltage by the interval in voltage based on two adjacent reference voltages of the 2m reference voltages and the first voltage.

Abstract: A method is disclosed for controlling charging/discharging of a capacitor module. The capacitor module includes a plurality of branches connected in parallel, each of which includes a capacitor and a switch connected in series with the capacitor. The method includes measuring a first charge/discharge time for the capacitor module being charged/discharged from an initial voltage to an intermediate voltage, and To adjusting a second charge/discharge time for the capacitor module being further charged/discharged from the intermediate voltage to a target voltage by controlling on/off of at least one of the switches depending on the first charge/discharge time, the intermediate voltage being between the initial voltage and the target voltage. Also disclosed are an apparatus for controlling charging/discharging of a capacitor module and a display apparatus including the apparatus.

Abstract: A current mirror circuit includes: a first transistor and a second transistor connected in series, a third transistor and a fourth transistor connected in series; and further includes: a reference voltage source, a fifth transistor, and a control module connected between the reference voltage source and the fifth transistor. A current mirror is formed by the third transistor and the fourth transistor together with the first transistor and the second transistor, to produce a mirror current at a drain of the third transistor according to a current source coupled to a drain of the first transistor; the control module is configured to control the fifth transistor to operate in the linear region.

Abstract: This disclosure provides a digital to analog converter circuit, a display panel and a display device. The digital to analog converter circuit comprises: a voltage dividing unit, a first segmenting unit, a second segmenting unit and a third segmenting unit.

Abstract: Disclosed are a circuit and a method for detecting a driving current of an organic light emitting diode display device, and an organic light emitting diode display device, the method includes: after detecting for a predetermined time period, obtaining an output voltage of the integrating circuit, and comparing the output voltage with at least one reference voltage; in the case that the output voltage and the reference voltage satisfy a predetermined condition, adjusting capacitance of a capacitor of the integrating circuit.

Abstract: The embodiments of the present disclosure disclose a reference circuit, comprising a current control sub-circuit, a voltage control sub-circuit and a voltage adjustment sub-circuit, wherein the current control sub-circuit outputs current to a first terminal and a second terminal of the voltage control sub-circuit and a first terminal of the voltage adjustment sub-circuit at a ratio of 1:1:n respectively, and the first terminal and the second terminal of the voltage control sub-circuit may cause a voltage at a second terminal of the voltage adjustment sub-circuit to be equal to a voltage at a third terminal of the voltage adjustment sub-circuit upon receiving equal current output by the current control sub-circuit, and the voltage adjustment sub-circuit may adjust a voltage output at an output terminal of the reference circuit to be independent of a temperature when the voltage at the second terminal is equal to the voltage at the third terminal.