Abstract: Provided are a display panel and a display device. The display panel includes a drive chip and a switching device, and the drive chip includes a digital interface inputting terminal, a positive driving voltage inputting terminal and a negative driving voltage inputting terminal, and the switching device includes a first switching inputting terminal, a second switching inputting terminal, a third switching inputting terminal, a switching control terminal, a first switching outputting terminal corresponding to the first switching inputting terminal, a second switching outputting terminal corresponding to the second switching inputting terminal and a third switching outputting terminal corresponding to the third switching inputting terminal. The first switching inputting terminal, the second switching inputting terminal, the third switching inputting terminal and the switching control terminal are configured to be electrically connected to a main circuit board.

Abstract: Provided are a display panel and a display device. The display panel includes a drive chip and a switching device, and the drive chip includes a digital interface inputting terminal, a positive driving voltage inputting terminal and a negative driving voltage inputting terminal, and the switching device includes a first switching inputting terminal, a second switching inputting terminal, a third switching inputting terminal, a switching control terminal, a first switching outputting terminal corresponding to the first switching inputting terminal, a second switching outputting terminal corresponding to the second switching inputting terminal and a third switching outputting terminal corresponding to the third switching inputting terminal. The first switching inputting terminal, the second switching inputting terminal, the third switching inputting terminal and the switching control terminal are configured to be electrically connected to a main circuit board.

Abstract: Embodiments of the disclosure provide a display driver circuit board, a driving method of the same, and a display device, where a display refresh frequency detection unit and a common voltage pre-storage and compensation unit are added to the display driver circuit board, so that the display refresh frequency detection unit can detect a display refresh frequency of a frame start signal output by a timing control circuit, and output the detected display refresh frequency to a common voltage pre-storage and compensation unit, and thereafter the common voltage pre-storage and compensation unit can determine a common voltage corresponding to the display refresh frequency output by the display refresh frequency detection unit according to a pre-stored correspondence relationship between respective display refresh frequencies and respective common voltages, and control a power source management circuit to output the common voltage corresponding to the display refresh frequency.

Abstract: A touch scanning method includes, in the absence of a touch, performing a coarse scanning on the touch screen, and in the presence of a touch, performing a fine scanning on a full detection-activated region containing a touch point while performing the coarse scanning on the remaining region other than the full detection-activated region. During coarse scanning, in first M frames of M+N successive frames, drive lines spaced apart from one another by at least one of the drive lines are driven, and sense lines spaced apart from one another by at least one of the sense lines are detected. In the succeeding N frames of the M+N frames, there is no activity in the drive and sense lines. During the fine scanning, each drive line and each sense line within the full detection-activated region is driven and detected, respectively.

Abstract: A touch scanning method includes, in the absence of a touch, performing a coarse scanning on the touch screen, and in the presence of a touch, performing a fine scanning on a full detection-activated region containing a touch point while performing the coarse scanning on the remaining region other than the full detection-activated region. During coarse scanning, in first M frames of M+N successive frames, drive lines spaced apart from one another by at least one of the drive lines are driven, and sense lines spaced apart from one another by at least one of the sense lines are detected. In the succeeding N frames of the M+N frames, there is no activity in the drive and sense lines. During the fine scanning, each drive line and each sense line within the full detection-activated region is driven and detected, respectively.