The invention provides a pixel driving circuit, a driving method thereof and a display device, and relates to the technical field of display. According to the invention, a data voltage is written intoa storage module through a data writing module; a data voltage compensation module writes a compensation voltage into the storage module; the range of the data voltage input by a data line is reduced, and a linear compensation voltage is provided through the data voltage compensation module; the voltage required for a driving transistor to drive a light emitting device to emit light is provided;a display panel achieves a required optical requirement; when the data voltage is switched, electromagnetic interference inside the display panel and coupling noise between a first power supply voltage Vdd corresponding to the pixels of adjacent columns and an initial voltage Vint can be reduced due to the reduced range of the data voltage; and the crosstalk phenomenon of the display panel is reduced.

Pixel driving circuit, driving method thereof and display device

The invention discloses a compensation method and an embedded touch control display panel. The method comprises the steps: storing a gray scale brightness compensation table in a time sequence controller, and searching a gray scale brightness compensation value corresponding to the current gray scale of each pixel region in the gray scale brightness compensation table according to the current grayscale of a touch control display panel; judging whether the gray scale brightness compensation value corresponding to the current gray scale of each pixel region is equal to a preset gray scale brightness compensation value or not; adjusting the voltage of a common electrode corresponding to the corresponding pixel region when the ray scale brightness compensation value corresponding to the current gray scale of each pixel region is not equal to the preset gray scale brightness compensation value, so as to carry out the gray scale compensation for the current gray scale of the embedded touchcontrol display panel. Compared with the prior art, the method just need to store the gray scale brightness compensation value corresponding to each pixel region, and reduces the quantity of stored data, so that the data can be stored in the time sequence controller of the embedded touch control display panel. The method reduces the cost of a product while improving the display effect of the embedded touch control display panel.

Compensation method and embedded touch control display panel

The invention discloses a brightness adjustment method and a display device. The brightness adjustment method comprises the following steps: obtaining the brightness of a target area of a display panel and the brightness of each adjustment area; Calculating a brightness difference value between the brightness of the target area and the brightness of each adjustment area; Calculating the brightnesspenetration rate of the display panel; Calculating a brightness compensation value of each adjustment area according to the brightness difference value and the brightness penetration rate; And adjusting the brightness of each adjustment region according to the brightness compensation value so as to reduce the brightness difference value between the brightness of each adjustment region and the brightness of the target region. According to the technical scheme, the display uniformity of the display panel can be improved.

Brightness adjusting method and display device

A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal.

Driving controller, display device and driving method including a lower frequency mode and an image transition mode

A display device and a method of compensating a luminance of the display device enhance display quality and reducing storage capacity of a memory, the display device including: a display panel including a plurality of pixels arranged in a matrix form; a storage unit storing a gray level compensation value of a reference pixel defined by at least one pixel; a compensation circuit receiving a gray level datum and generating a compensated gray level datum by applying the gray level compensation value; and a data driving circuit receiving the compensated gray level datum to generate a data voltage and outputting the data voltage to the display panel. The display panel includes a first compensation area and a second compensation area. The reference pixel in the first compensation area is defined by one pixel and the reference pixel in the second compensation area is defined by m×n pixels, m and n being natural numbers greater than 1.

Display device and method of compensating luminance of the same

A driving controller includes an image conversion circuit configured to convert an image signal to an image data signal including active data and blank data, a still image determination circuit configured to output a flag signal of an active level when the image signal is a still image, an operation mode determination circuit configured to output an operation mode signal indicating a low frequency mode when the flag signal is the active level, and to output an operation mode signal indicating an image transition mode when the flag signal is changed from the active level and an inactive level, and a blank voltage determination circuit configured to output a blank voltage signal corresponding to a first gray scale during the low frequency mode, and a blank voltage signal corresponding to a second gray scale during the transition mode, wherein the blank data corresponds to the blank voltage signal

Lee Eunho

Papers

Display device and method of compensating luminance of the same

Driving controller, display device including the same and driving method of display device

Driving controller, display device and driving method including a lower frequency mode and an image transition mode