Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a scan-line period for scanning one of the scan lines. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits according to the scan-line period for scanning one of the scan lines, wherein the scan-line period comprises a display data period and a test data period. In the test data period, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the display data period, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.

Abstract: An image processing method and a display device thereof are provided. The method is adapted to a display panel with a display area. The image processing method includes the following steps. Whether original images to be displayed on a plurality of sub-areas of the display area are still is analyzed and determined. When the original image in a current sub-area is still, a time length of the original image being still is recorded. The current sub-area is one of the sub-areas. Processing levels corresponding to a plurality of image processing schemes are determined based on the time length. Overall or partial luminance (luma) of the original image in the current sub-area is gradually reduced by the image processing schemes with the determined processing levels, and a corresponding luma-reduced image is displayed on the current sub-area.

Abstract: An image processing method and a display device thereof are provided. The method is adapted to a display panel with a display area. The image processing method includes the following steps. Whether original images to be displayed on a plurality of sub-areas of the display area are still is analyzed and determined. When the original image in a current sub-area is still, a time length of the original image being still is recorded. The current sub-area is one of the sub-areas. Processing levels corresponding to a plurality of image processing schemes are determined based on the time length. Overall or partial luminance (luma) of the original image in the current sub-area is gradually reduced by the image processing schemes with the determined processing levels, and a corresponding luma-reduced image is displayed on the current sub-area.

Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a gate driving circuit and a sensing circuit. The gate driving circuit may scan the scan-lines during a plurality of scan-line periods within a frame period. The sensing circuit is coupled to a plurality of pixel circuits. A corresponding scan-line period of the scan-line periods is divided into a test data period and a display data period. In the test data period, the sensing circuit controls a corresponding pixel circuit to receive the test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the display data period, the sensing circuit controls the corresponding pixel circuit to receive the display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.

Abstract: A manufacturing process for a micro-device panel including the following steps is provided. A plurality of micro-device sets are formed on a transferring substrate, and each of the plurality of micro-device sets has at least one micro-device. A plurality of receiving blocks are provided. The plurality of micro-device sets are respectively transferred from the transferring substrate onto the plurality of receiving blocks to form a plurality of building blocks by a transfer head. The plurality of building blocks are placed on a receiving substrate. Finally, the adjacent building blocks on the receiving substrate are connected by a plurality of connecting devices to form the micro-device panel.

Abstract: An image processing method and a display device thereof are provided. The method is adapted to a display panel with a display area. The image processing method includes the following steps. Whether original images to be displayed on a plurality of sub-areas of the display area are still is analyzed and determined. When the original image in a current sub-area is still, a time length of the original image being still is recorded. The current sub-area is one of the sub-areas. Processing levels corresponding to a plurality of image processing schemes are determined based on the time length. Overall or partial luminance (luma) of the original image in the current sub-area is gradually reduced by the image processing schemes with the determined processing levels, and a corresponding luma-reduced image is displayed on the current sub-area.

Abstract: An image processing method and a display device thereof are provided. The method is adapted to a display panel with a display area. The image processing method includes the following steps. Whether original images to be displayed on a plurality of sub-areas of the display area are still is analyzed and determined. When the original image in a current sub-area is still, a time length of the original image being still is recorded. The current sub-area is one of the sub-areas. Processing levels corresponding to a plurality of image processing schemes are determined based on the time length. Overall or partial luminance (luma) of the original image in the current sub-area is gradually reduced by the image processing schemes with the determined processing levels, and a corresponding luma-reduced image is displayed on the current sub-area.

Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a gate driving circuit and a sensing circuit. The gate driving circuit may scan the scan-lines during a plurality of scan-line periods within a frame period. The sensing circuit is coupled to a plurality of pixel circuits. A corresponding scan-line period of the scan-line periods is divided into a test data period and a display data period. In the test data period, the sensing circuit controls a corresponding pixel circuit to receive the test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the display data period, the sensing circuit controls the corresponding pixel circuit to receive the display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.

Abstract: A method of compensating luminance of an organic light-emitting diode (OLED) operated with a transistor in a pixel cell of a display panel includes measuring a first parameter of the transistor and a parameter of the OLED, and generating a lookup table accordingly; converting original display data to target display data according to the lookup table; outputting the target display data to the pixel cell; and compensating a second parameter of the transistor when the target display data is received by the pixel cell.

Abstract: An external compensation method for devices in a panel which comprises a plurality of sub-pixels, includes programming a first device in a first sub-pixel among the plurality of sub-pixels via a first line and sensing the first device via a second line during a first period; and programming a second device in a second sub-pixel among the plurality of sub-pixels via the second line and sensing the second device via the first line or a third line during a second period.

Abstract: A shift register comprises a first switch, a second switch, a third switch, and a fourth switch. The first switch selectively conducts a first clock signal to a first output terminal as a first output signal based on a voltage level over the control terminal. The second switch selectively forces a voltage level of the first output signal to be equal to a voltage level of a second clock signal based on both of the second clock signal and a third clock signal inverted to the second clock signal. The third switch selectively defines a voltage over the control terminal to be a first voltage based on a first input signal. The fourth switch selectively forces the voltage level over the control terminal to be equal to the voltage level of the second clock signal based on both of the second clock signal and the third clock signal.

Abstract: A display apparatus is provided. The display device includes pixels, a data line, a first current compensation unit, a second current compensation unit, and a control unit. The first current compensation unit is configured for providing a first current to pixels through the data line. The first current is configured for compensating a leakage current that flows out of the data line. The second current compensation unit is configured for sinking a second current from pixels through the data line. The second current is configured for compensating the leakage current that flows into the data line. The control unit is configured for controlling the first current compensation unit to provide the first current or controlling the second current compensation unit to sink the second current according to a voltage of the data line.

Abstract: A light emitting diode module includes a light emitting unit and a light emitting diode circuit. The light emitting diode circuit includes four transistors and a storage capacitor. A first transistor includes a first end for receiving a data signal, and a control end. The storage capacitor has a first end coupled to a second end of the first transistor. A second transistor has a first end coupled to a first voltage source, and a control end. A third transistor has a first end coupled to a second end of the second transistor, and a control end coupled to a second end of the storage capacitor. A fourth transistor has a first end coupled to the second end of the storage capacitor, a control end, and a second end coupled to the second end of the second transistor.

Abstract: A pixel circuit includes one organic light emitting diode, five first transistors and two capacitors. The first and third transistors have terminals coupled to a first voltage. The second transistor has two terminals coupled to another terminal of the first transistor and a second voltage through the organic light emitting diode, respectively. The first capacitor has a terminal coupled to one terminal of the second transistor. The third transistor has a terminal coupled to one terminal of the first capacitor. The second capacitor has two terminals coupled to a control terminal of the second transistor and another terminal of the first capacitor, respectively. The fourth transistor has two terminals coupled to the terminal of the second transistor and a control terminal of the second transistor, respectively. The fifth transistor has a terminal coupled to the another terminal of the second transistor. A display apparatus is also provided.

Abstract: A pixel circuit includes four transistors, two capacitors and a light emitting element. A gate of first transistor receives a scan signal and a source/drain thereof receives a display data. A terminal of first capacitor couples to another source/drain of first transistor. A gate and a source/drain of second transistor couple to another terminal of first capacitor; and another source/drain thereof receives a switch signal. A terminal of second capacitor receives a reset signal; and another terminal thereof couples to another terminal of first capacitor. A gate of third transistor couples to a terminal of first capacitor. A gate of fourth transistor receives an enable signal; a source/drain thereof couples to a first power supply voltage; and another source/drain thereof couples to one source/drain of third transistor. The anode and cathode of the light emitting element couple to one source/drain of third transistor and a second power supply voltage, respectively.

Abstract: A shift register comprises a first switch, a second switch, a third switch, and a fourth switch. The first switch selectively conducts a first clock signal to a first output terminal as a first output signal based on a voltage level over the control terminal. The second switch selectively forces a voltage level of the first output signal to be equal to a voltage level of a second clock signal based on both of the second clock signal and a third clock signal inverted to the second clock signal. The third switch selectively defines a voltage over the control terminal to be a first voltage based on a first input signal. The fourth switch selectively forces the voltage level over the control terminal to be equal to the voltage level of the second clock signal based on both of the second clock signal and the third clock signal.

Abstract: A pixel driver includes an input unit, a power-switching unit, a voltage-dividing unit, a pixel-driving unit and a shorting unit. The input unit outputs a data voltage according to a first scan signal and a data signal. The power-switching unit outputs a first power voltage according to a first power voltage and a power-controlling signal. The voltage-dividing unit adjusts a control voltage according to a second scan signal. The pixel-driving unit includes a control terminal, a first terminal and a second terminal. The pixel-driving unit provides a driving current to an LED according to the voltage difference between the control terminal and the second terminal. The shorting unit connects the control terminal to the first terminal according to the first scan signal.

Abstract: A pixel circuit includes four transistors, two capacitors and a light emitting element. A gate of first transistor receives a scan signal and a source/drain thereof receives a display data. A terminal of first capacitor couples to another source/drain of first transistor. A gate and a source/drain of second transistor couple to another terminal of first capacitor; and another source/drain thereof receives a switch signal. A terminal of second capacitor receives a reset signal; and another terminal thereof couples to another terminal of first capacitor. A gate of third transistor couples to a terminal of first capacitor. A gate of fourth transistor receives an enable signal; a source/drain thereof couples to a first power supply voltage; and another source/drain thereof couples to one source/drain of third transistor. The anode and cathode of the light emitting element couple to one source/drain of third transistor and a second power supply voltage, respectively.

Abstract: A pixel structure and a driving method thereof are disclosed. The driving method includes following steps. During a first displaying frame period, a threshold voltage of a transistor for driving a light-emitting diode is stored in a first capacitor, and a first data voltage is stored in a second capacitor. The threshold voltage stored in the first capacitor is utilized for compensation during the first displaying frame period. During a second displaying frame period, a second data voltage is stored in the second capacitor, and the threshold voltage stored in the first capacitor during the first frame displaying period is still utilized for compensation during the second displaying frame period.

Abstract: A display apparatus is provided. The display device includes pixels, a data line, a first current compensation unit, a second current compensation unit, and a control unit. The first current compensation unit is configured for providing a first current to pixels through the data line. The first current is configured for compensating a leakage current that flows out of the data line. The second current compensation unit is configured for sinking a second current from pixels through the data line. The second current is configured for compensating the leakage current that flows into the data line. The control unit is configured for controlling the first current compensation unit to provide the first current or controlling the second current compensation unit to sink the second current according to a voltage of the data line.