Abstract: A display panel includes: a transparent substrate with a display area including a light-emitting area and a non-light-emitting area; a light-emitting device on the transparent substrate, where the light-emitting device includes a first transparent electrode layer, a light-emitting functional layer and a second transparent electrode layer; the light-emitting functional layer includes light-emitting parts arranged in an array, and the light-emitting parts are in the corresponding light-emitting area; a driving structure between the transparent substrate and the light-emitting device, where the driving structure includes pixel circuits arranged in an array and a power supply line electrically connected to the pixel circuits to provide a power voltage, the pixel circuits are configured to drive the light-emitting parts to emit light; and orthographic projections of the pixel circuits and the power supply line on the transparent substrate are all located within an orthographic projection range of the non-light-emi

Abstract: A display substrate includes a plurality of pixel units arranged to form a plurality of pixel columns extending along a first direction, the display substrate further includes a plurality of groups of power source signal lines and pixel driving circuits located on the substrate, each group of power source signal lines includes a plurality of secondary signal lines, the pixel driving circuits of the pixel units in each pixel column are connected to different secondary signal lines in a same group of power source signal lines, each secondary signal line extends along the first direction from a starting end of the power source signal lines, extension lengths of the secondary signal lines in the same group of power source signal lines are different, and resistance values per unit length of different secondary signal lines along the first direction decrease as total lengths of the secondary signal lines increase.

Abstract: A pixel driving circuit, a display panel and a display device are provided. The pixel driving circuit includes a first control module electrically connected to a first node. The first control module receives the first control signal and the first power voltage. The first control module is used to write the first power voltage into the first node under the control of the first control signal when the voltage of the first control signal is higher than the first predetermined threshold voltage. Because the first power voltage is written into the first node to control the lighting device to generate light when the first control signal is higher than the first predetermined threshold voltage, this could prevent the lighting device from generating the color shift. In this way, the requirement for the chip performance is comparatively low and thus the manufacturing cost is reduced.

Abstract: The present disclosure provides method and a computer readable medium for adjusting voltage applied on a display panel. The present disclosure could utilize the ratio of Vgs of two different tests, as an adjustment factor, to compensate the voltage value of each display area. Thus, the method could obtain the same compensation voltage for different display area to compensate the voltage difference between the node G and the node S. This could reduce the influence of the output step. In addition, the method could further detect the inputted compensation voltage to obtain a current value according to a second adjusting step. Through the current formula, the ratio of constant k of each display area could be obtained to adjust the threshold value of the TFT according to the current formula such that the current of each display area could be consistent.

Abstract: A pixel driving circuit, a display panel and a display device are provided. The pixel driving circuit includes a first control module electrically connected to a first node. The first control module receives the first control signal and the first power voltage. The first control module is used to write the first power voltage into the first node under the control of the first control signal when the voltage of the first control signal is higher than the first predetermined threshold voltage. Because the first power voltage is written into the first node to control the lighting device to generate light when the first control signal is higher than the first predetermined threshold voltage, this could prevent the lighting device from generating the color shift. In this way, the requirement for the chip performance is comparatively low and thus the manufacturing cost is reduced.

Abstract: The present disclosure provides method and a computer readable medium for adjusting voltage applied on a display panel. The present disclosure could utilize the ratio of Vgs of two different tests, as an adjustment factor, to compensate the voltage value of each display area. Thus, the method could obtain the same compensation voltage for different display area to compensate the voltage difference between the node G and the node S. This could reduce the influence of the output step. In addition, the method could further detect the inputted compensation voltage to obtain a current value according to a second adjusting step. Through the current formula, the ratio of constant k of each display area could be obtained to adjust the threshold value of the TFT according to the current formula such that the current of each display area could be consistent.

Abstract: A method, an equipment, and a system of electrical detecting and adjusting TFTs are provided. The method includes steps of: obtaining a gate-source voltage ratio of each sub-pixel of a display device; detecting an output voltage of each driving TFT in a predetermined sampling time to obtain a detecting voltage; obtaining a constant value K according an input voltage of each driving TFT and the detecting voltage in the predetermined sampling time; adjusting the constant value K of each compensating sub-pixel in sequence according to a gate-source voltage ratio of a standard sub-pixel, a constant value K of the standard sub-pixel, and a gate-source voltage ratio of the compensating sub-pixel to obtain a compensating factor; and adjusting a pixel voltage of each compensating sub-pixel according to its compensating factors to obtain an adjusted pixel voltage.

Abstract: A method, an equipment, and a system of electrical detecting and adjusting TFTs are provided. The method includes steps of: obtaining a gate-source voltage ratio of each sub-pixel of a display device; detecting an output voltage of each driving TFT in a predetermined sampling time to obtain a detecting voltage; obtaining a constant value K according an input voltage of each driving TFT and the detecting voltage in the predetermined sampling time; adjusting the constant value K of each compensating sub-pixel in sequence according to a gate-source voltage ratio of a standard sub-pixel, a constant value K of the standard sub-pixel, and a gate-source voltage ratio of the compensating sub-pixel to obtain a compensating factor; and adjusting a pixel voltage of each compensating sub-pixel according to its compensating factors to obtain an adjusted pixel voltage.

Abstract: The present invention provides a system of sensing AMOLED pixel driving property and an AMOLED display device. In the sensing stage, the anode voltage of the organic light emitting diode and the output voltage of the variable negative voltage source (21) in the AMOLED pixel driving circuit (10) are coupled to the voltage addition circuit (22), and the voltage addition circuit (22) inputs the sum up result to the analog to digital converter (23), and because the variable negative voltage source (21) adjusts according to a change of the anode voltage of the organic light emitting diode, and the variable negative voltage source (21) and the voltage addition circuit (22) act together, and then an input voltage of the analog to digital converter (23) can be adjusted to make the input voltage always be in a sensing range of the analog to digital converter (23).

Abstract: A driving system of an OLED display panel and a static image processing method are disclosed. The method includes steps of: detecting a static image on the OLED display panel; classifying a detected static image according to image features; and selecting a corresponding processing mode according to the static image after classification so as to reduce an afterimage. According to the present disclosure, the afterimage on the display panel can be reduced.

Abstract: The invention provides an OLED display and a source driver. The output channels of source driver are divided into odd-numbered (ODD) and even-numbered (EVEN) output channels. With the odd-even channel selection module (33) in source driver to control the logic circuit and driver module (31) to select only odd-numbered (ODD), only even-numbered (EVEN) output channels or both for output based on strobe enabling signal (EN) and odd-even selection signal (SEL). Moreover, through rapid switching between high and low of the odd-even selection signal (SEL), the switching of outputting to only odd-numbered (ODD) and only even-numbered (EVEN) output channels is achieved so that odd-numbered pixel units and even-numbered pixel units in OLED display emit light alternatingly. Without changing pixel structure and reducing opening ration, while ensuring normal display, the invention shortens the light-emitting time of OLED inside each pixel to delay OLED display ageing.

Abstract: A driving system of an OLED display panel and a static image processing method are disclosed. The method includes steps of: detecting a static image on the OLED display panel; classifying a detected static image according to image features; and selecting a corresponding processing mode according to the static image after classification so as to reduce an afterimage. According to the present disclosure, the afterimage on the display panel can be reduced.

Abstract: The present invention provides a system of sensing AMOLED pixel driving property and an AMOLED display device. In the sensing stage, the anode voltage of the organic light emitting diode and the output voltage of the variable negative voltage source (21) in the AMOLED pixel driving circuit (10) are coupled to the voltage addition circuit (22), and the voltage addition circuit (22) inputs the sum up result to the analog to digital converter (23), and because the variable negative voltage source (21) adjusts according to a change of the anode voltage of the organic light emitting diode, and the variable negative voltage source (21) and the voltage addition circuit (22) act together, and then an input voltage of the analog to digital converter (23) can be adjusted to make the input voltage always be in a sensing range of the analog to digital converter (23).

Abstract: The invention provides an OLED display and a source driver. The output channels of source driver are divided into odd-numbered (ODD) and even-numbered (EVEN) output channels. With the odd-even channel selection module (33) in source driver to control the logic circuit and driver module (31) to select only odd-numbered (ODD), only even-numbered (EVEN) output channels or both for output based on strobe enabling signal (EN) and odd-even selection signal (SEL). Moreover, through rapid switching between high and low of the odd-even selection signal (SEL), the switching of outputting to only odd-numbered (ODD) and only even-numbered (EVEN) output channels is achieved so that odd-numbered pixel units and even-numbered pixel units in OLED display emit light alternatingly. Without changing pixel structure and reducing opening ration, while ensuring normal display, the invention shortens the light-emitting time of OLED inside each pixel to delay OLED display ageing.

Abstract: The present invention provides a display device, which comprises a display panel, a partitioning module, a data transforming module, a scanning driver, and a data driver. The display panel has M pixel units. The partitioning module partitions the M pixel units into N pixel-unit groups and generates at least one partitioning signal. The data transforming module receives at least one original image data of the M pixel units and generates at least one data transforming signal. The data driver receives the at least one data transforming signal, and transfers the at least one data transforming signal to the M pixel units, to light up each of the N pixel-unit groups only for one frame of X frames of an image period. By randomly selecting pixel units to light up, the image flicker problem is solved.

Abstract: A display device includes a format converter and a display panel. The format converter is for obtaining an original data frame, and performing a format conversion for the original data frame in order to obtain multiple converted data frames having different formats. The display panel is for that when obtaining each converted data frame which is converted through the format converter, one portion of pixel units of the display panel emits light, and the other portion of the pixel units of the display panel does not emit light. A driving method for a display device is also disclosed. The present invention can reduce the light emitting time of the pixel units of the display panel, and effectively decrease the aging speed of the display panel.

Abstract: The present invention provides an OLED pixel driving circuit and an OLED display panel. The OLED pixel driving circuit sets a third thin film transistor (T3) between a direct current voltage end (Vdd) and an organic light emitting diode (D), and manipulates a control signal (P) to control on or off of the source and the drain of the third thin film transistor (T3) for being capable of conveniently controlling the light emitting period of an OLED.