CN112908237A

CN112908237A - Display device and driving method thereof

Info

Publication number: CN112908237A
Application number: CN202110127304.4A
Authority: CN
Inventors: 贺泽斌; 薛志远; 孙莹; 许育民
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-06-04

Abstract

The invention provides a display device and a driving method thereof, wherein the display device comprises a plurality of scanning lines and at least one first driving circuit, the plurality of scanning lines are sequentially arranged, the first driving circuit is electrically connected with the plurality of scanning lines and is configured to provide scanning signals to the scanning lines, and the scanning signals comprise scanning enabling sections; in the same scanning frame of the display stage, a scanning gap exists between the scanning enabling sections on two adjacent scanning lines, the scanning enabling sections on at least two scanning lines have different widths, and all the scanning gaps have the same width. The embodiment of the invention provides a display device and a driving method thereof, which reduce the energy superposition value when a plurality of scanning signals are provided, destroy the natural frequency characteristic of the scanning signals, further weaken the electromagnetic interference energy caused by the natural frequency and avoid the interference of the electromagnetic interference energy on other electronic products.

Description

Display device and driving method thereof

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display device and a driving method thereof.

Background

With the development of Display technology, Liquid Crystal Display (LCD) panels and Organic Light Emitting Diode (0 LED) Display panels gradually become two major Display panels in the Display field, and LCD panels and OLED Display panels are widely used in devices (including Display devices) or scenes with integrated Display functions, which can be known by those skilled in the art, such as computers, mobile phones, wearable devices, and vehicles.

Generally, the operation of electronic products causes Interference to other electronic products in the periphery, and the Interference may be called as Electromagnetic Interference (EMI), and the performance of the electronic products subjected to EMI is reduced or even the electronic products cannot operate normally. Based on this, when the display device is integrated in some equipment or applied to some scenes, for example, when the display device is applied to vehicle-mounted display, the display device may generate electromagnetic interference to other vehicle-mounted electronic products when used as a vehicle-mounted display screen.

Disclosure of Invention

The invention provides a display device and a driving method thereof, which destroy the natural frequency characteristic of a scanning signal, further weaken electromagnetic interference energy caused by the natural frequency and avoid the interference of the electromagnetic interference energy on other electronic products.

In a first aspect, an embodiment of the present invention provides a display device, including a plurality of scan lines and at least one first driving circuit, the plurality of scan lines being sequentially arranged, the first driving circuit being electrically connected to the plurality of scan lines and configured to provide scan signals to the scan lines, the scan signals including a scan enable segment;

in the same scanning frame of the display stage, a scanning gap exists between the scanning enabling sections on two adjacent scanning lines, the scanning enabling sections on at least two scanning lines have different widths, and all the scanning gaps have the same width.

In a second aspect, an embodiment of the present invention provides a driving method for a display device according to the first aspect, including:

In the display device provided in the embodiment of the present invention, in the same scanning frame in the display stage, a scanning gap exists between the scan enabling segments on two adjacent scanning lines, the scan enabling segments on at least two scanning lines have different widths, and all the scanning gaps have the same width. Therefore, the inherent frequency characteristic of the scanning signal is destroyed by setting the unequal duration of at least two scanning enabling sections in the same scanning frame, so that the electromagnetic interference energy caused by the inherent frequency can be weakened, and the interference of the electromagnetic interference energy to other electronic products is avoided.

Drawings

Fig. 1 is a schematic top view of a display device according to an embodiment of the present invention;

FIG. 2 is a timing diagram of a display device according to an embodiment of the present invention;

FIG. 3 is a timing diagram of another display device according to an embodiment of the present invention;

fig. 4 is a schematic top view of another display device according to an embodiment of the present invention;

fig. 5 is a schematic top view of another display device according to an embodiment of the present invention;

FIG. 6 is a timing diagram illustrating driving of another display device according to an embodiment of the present invention;

fig. 7 is a schematic top view illustrating another display device according to an embodiment of the present invention;

fig. 8 is a schematic top view illustrating a touch electrode layer according to an embodiment of the invention;

fig. 9 is a schematic top view illustrating another display device according to an embodiment of the present invention;

FIG. 10 is a timing diagram illustrating driving operations of another display device according to an embodiment of the present invention;

FIG. 11 is a timing diagram illustrating driving operations of another display device according to an embodiment of the present invention;

FIG. 12 is a timing diagram illustrating driving operations of another display device according to an embodiment of the present invention;

fig. 13 is a timing diagram of driving another display device according to an embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic top view of a display device according to an embodiment of the present invention, and fig. 2 is a timing diagram of driving the display device according to the embodiment of the present invention, referring to fig. 1 and fig. 2, the display device includes a plurality of scan lines 21 and at least one first driving circuit 30, the plurality of scan lines 21 are sequentially arranged, the first driving circuit 30 is electrically connected to the plurality of scan lines 21, the first driving circuit 30 is configured to provide a scan signal to the scan lines 21, and the scan signal includes a scan enable segment EN 1. In the same scan frame of the display phase, a scan Gap1 exists between the scan enable segments EN1 on two adjacent scan lines 21, the scan enable segments EN1 on at least two scan lines 21 have different widths, and all the scan gaps Gap1 have the same width. In the same scanning frame of the display stage, the first driving circuit 30 sequentially drives the plurality of scanning lines 21 to sequentially turn on the pixel driving transistors 23 electrically connected to the scanning lines 21.

Exemplarily, referring to fig. 1 and 2, the display device includes two first driving circuits 30, and the two first driving circuits 30 are a first sub driving circuit 31 and a second sub driving circuit 32, respectively. The plurality of scanning lines 21 extend in a first direction and are arranged in a second direction. Along the second direction, the plurality of scan lines 21 are sequentially marked as a first scan line Gate1, a second scan line Gate2, a third scan line Gate3, a fourth scan line Gate4, and so on until the last scan line Gate, where h is a positive integer greater than 1. The scan enable segment EN1 on the first scan line Gate1 has a first scan enable width W1, the scan enable segment EN1 on the second scan line Gate2 has a second scan enable width W2, and the first scan enable width W1 is not equal to the second scan enable width W2.

In the display device provided by the embodiment of the invention, in the same scanning frame of the display stage, the scanning Gap1 exists between the scanning enable segments EN1 on two adjacent scanning lines 21, the scanning enable segments EN1 on at least two scanning lines 21 have different widths, and all the scanning gaps Gap1 have the same width. Therefore, by setting the unequal duration of at least two scanning enabling segments EN1 in the same scanning frame, the natural frequency characteristic of the scanning signal is destroyed, the electromagnetic interference energy caused by the natural frequency can be weakened, and the interference of the electromagnetic interference energy to other electronic products is avoided.

Alternatively, referring to fig. 1 and 2, adjacent M scan lines 21 form one scan line group Z, and the plurality of scan lines 21 includes a plurality of scan line groups Z. In the same scan frame of the display period, the scan enable segments EN1 on any two scan lines 21 have different widths within the same scan line group Z. In the same scan frame of the display period, the scan enable segment EN1 on the ith scan line 21 has the same width as the scan enable segment EN1 on the (i + M) th scan line 21. Wherein i and M are positive integers, M is more than or equal to 2, and i is more than or equal to 1. In the embodiment of the present invention, M adjacent scan lines 21 form a scan line group Z, and the time lengths of the scan enable segments EN1 in the same scan line group Z are not equal to each other, so that the natural frequency characteristic of the scan signal is damaged. The scan enable segments EN1 of the same width exist in different scan line groups Z, thereby reducing the design requirements of the first driving circuit 30.

Exemplarily, referring to fig. 1 and 2, taking M ═ 2 as an example, 2 adjacent scan lines 21 constitute one scan line group Z, the first scan line Gate1 and the second scan line Gate2 constitute one scan line group Z, and the third scan line Gate3 and the fourth scan line Gate4 constitute another scan line group Z. In the same scan frame of the display phase, the scan enable segment EN1 on the first scan line Gate1 has a first scan enable width W1, the scan enable segment EN1 on the second scan line Gate2 has a second scan enable width W2, and the first scan enable width W1 is not equal to the second scan enable width W2. Similarly, in the same scan frame of the display phase, the scan enable segment EN1 on the third scan line Gate3 has a first scan enable width W1, the scan enable segment EN1 on the fourth scan line Gate4 has a second scan enable width W2, and the first scan enable width W1 is not equal to the second scan enable width W2. In the same scan frame of the display phase, the scan enable segment EN1 on the first scan line Gate1 has the same width as the scan enable segment EN1 on the third scan line Gate3, and the scan enable segment EN1 on the second scan line Gate2 has the same width as the scan enable segment EN1 on the fourth scan line Gate 4.

Alternatively, referring to fig. 1, the display device includes two first driving circuits 30, and the two first driving circuits 30 are a first sub driving circuit 31 and a second sub driving circuit 32, respectively. The first sub-driving circuits 31 are electrically connected to the odd-numbered scanning lines 21, and the second sub-driving circuits 32 are electrically connected to the even-numbered scanning lines 21. In the embodiment of the present invention, the first sub-driving circuit 31 is electrically connected to the first, third, and even scan lines 21, and the second sub-driving circuit 32 is electrically connected to the second, fourth, and even scan lines 21, so as to realize cross-driving of the scan lines 21 in the display device. In other embodiments, the scan lines 21 in the display device may also adopt other driving methods, which is not limited in the embodiment of the present invention.

Exemplarily, referring to fig. 1 and 2, the first sub-driving circuit 31 is electrically connected to the odd-numbered scan lines 21, the first sub-driving circuit 31 supplies the scan signal to the odd-numbered scan lines 21, and the scan enable segments EN1 on the odd-numbered scan lines 21 each have a first scan enable width W1. The second sub-driving circuits 32 are electrically connected to the even-numbered scan lines 21, the second sub-driving circuits 32 provide scan signals to the even-numbered scan lines 21, and the scan enable segments EN1 on the even-numbered scan lines 21 each have a second scan enable width W2. Therefore, in the implementation of the present invention, the first sub-driving circuit 31 only needs to provide the scan signal with the first scan enable width W1, and the second sub-driving circuit 32 only needs to provide the scan signal with the second scan enable width W2, so that the design requirements of the first sub-driving circuit 31 and the second sub-driving circuit 32 are reduced.

Fig. 3 is a driving timing diagram of another display device according to an embodiment of the invention, and unlike fig. 2 in which adjacent even scan lines 21 form a scan line group Z, in fig. 3, adjacent odd scan lines 21 may also form a scan line group Z. Illustratively, adjacent 3 scan lines 21 constitute one scan line group Z, and the first scan line Gate1, the second scan line Gate2, and the third scan line Gate3 constitute one scan line group Z. In the same scan frame of the display phase, the scan enable segment EN1 on the first scan line Gate1 has a first scan enable width W1, the scan enable segment EN1 on the second scan line Gate2 has a second scan enable width W2, the scan enable segment EN1 on the third scan line Gate3 has a third scan enable width W3, and any two of the first scan enable width W1, the second scan enable width W2, and the third scan enable width W3 are not equal.

Fig. 4 is a schematic top view of another display device according to an embodiment of the present invention, and referring to fig. 4, the display device includes two first driving circuits 30, where the two first driving circuits 30 are a first sub-driving circuit 31 and a second sub-driving circuit 32, respectively. The first sub-driving circuit 31 and the second sub-driving circuit 32 are electrically connected to the same scanning line 21. In the embodiment of the present invention, the first sub-driving circuit 31 is electrically connected to all the scanning lines 21, and the second sub-driving circuit 32 is electrically connected to all the scanning lines 21, so as to implement bilateral driving of the scanning lines 21 in the display device.

Fig. 5 is a schematic top view of another display device according to an embodiment of the present invention, and referring to fig. 5, the display device includes a first driving circuit 30, where the first driving circuit 30 is electrically connected to all the scan lines 21, so as to achieve single-side driving of the scan lines 21 in the display device.

It should be noted that, when the scan lines 21 in the display device are driven in one-sided, two-sided, or cross driving, the driving sequence shown in fig. 2 may be adopted, or other driving sequences may also be adopted, as long as the scan enable segments EN1 on at least two scan lines 21 have different widths and all the scan gaps Gap1 have the same width in the same scan frame in the display stage.

Fig. 6 is a timing diagram of driving another display device according to an embodiment of the present invention, and referring to fig. 6, adjacent N scan lines 21 form a scan line group Z, and the scan lines 21 include a plurality of scan line groups Z. In the same scan frame of the display phase, the scan enable segments EN1 on any two scan lines 21 have the same width within the same scan line group Z. In the same scan frame of the display phase, there are at least two scan line groups Z, and the scan enable segments EN1 on the two scan lines 21 respectively within the two scan line groups Z have different widths. Wherein N is a positive integer and is more than or equal to 2. In the embodiment of the present invention, the adjacent N scan lines 21 form a scan line group Z, and the scan enable segments EN1 in the same scan line group Z have the same duration, so as to reduce the design requirement of the first driving circuit 30. There are at least two scan line groups Z in which the duration of the scan enable segment EN1 is not equal, thereby deteriorating the natural frequency characteristics of the scan signal.

Exemplarily, referring to fig. 6, taking N ═ 2 as an example, 2 adjacent scan lines 21 constitute one scan line group Z, the first scan line Gate1 and the second scan line Gate2 constitute one scan line group Z, and the third scan line Gate3 and the fourth scan line Gate4 constitute another scan line group Z. In the same scan frame of the display phase, the scan enable segment EN1 on the first scan line Gate1 has a first scan enable width W1, and the scan enable segment EN1 on the second scan line Gate2 has a first scan enable width W1. The scan enable segment EN1 on the third scan line Gate3 has a second scan enable width W2, and the scan enable segment EN1 on the fourth scan line Gate4 has a second scan enable width W2. The first scan enable width W1 is not equal to the second scan enable width W2.

For example, referring to fig. 6, adjacent even scan lines 21 form a scan line group Z, and in other embodiments, adjacent odd scan lines 21 may also form a scan line group Z.

Fig. 7 is a schematic top view of another display device according to an embodiment of the present invention, and referring to fig. 6 and 7, the first driving circuit includes a plurality of cascaded shift registers 50, and output terminals of the shift registers 50 are electrically connected to the scan lines 21. The first drive circuit 30 includes a first partition 301 and a second partition 302, and the input terminals of the plurality of shift registers 50 located in the first partition 301 are electrically connected to the first clock control line CK1, and the input terminals of the plurality of shift registers 50 located in the second partition 302 are electrically connected to the second clock control line CK 2. In the same scan frame of the display phase, the scan enable segments EN1 on any two scan lines 21 in the same scan line group Z have the same width, and there are at least two scan line groups Z, and the scan enable segments EN1 on two scan lines 21 respectively in the two scan line groups Z have different widths. In the embodiment of the present invention, the shift register 50 in the first section 301 in the first drive circuit 30 is driven through the first clock control line CK1, thereby driving the scan line 21 electrically connected to the shift register 50 in the first section 301. The shift register 50 in the second section 302 in the first drive circuit 30 is driven by the second clock control line CK2, thereby driving the scan lines 21 electrically connected to the shift register 50 in the second section 302. Since the scan enable segments EN1 on any two scan lines 21 in the same scan line group Z have the same width, the scan lines 21 in the same scan line group Z can be electrically connected to the shift register 50 in the same partition (including the first partition 301 and the second partition 302), and the scan line groups Z having at least two different scan enable widths (including the first scan enable width W1 and the second scan enable width W2) can be electrically connected to different partitions, so that the design requirements of the first sub-driving circuit 31 and the second sub-driving circuit 32 are reduced. In other embodiments, the first driving circuit 30 may further include at least three partitions, each of which includes a plurality of shift registers 50.

In fig. 7, one first clock control line CK1 is electrically connected to the plurality of shift registers 50 in the first partition 301, one second clock control line CK2 is electrically connected to the plurality of shift registers 50 in the second partition 302, but the present invention is not limited to this order, and in another embodiment, at least two first clock control lines CK1 may be electrically connected to the plurality of shift registers 50 in the first partition 301, and at least two second clock control lines CK2 may be electrically connected to the plurality of shift registers 50 in the second partition 302.

Illustratively, in one embodiment, the first driving circuit 30 includes a first partition 301 and a second partition 302, and correspondingly, the display device includes two scanning line groups Z, each of which includes a plurality of scanning lines 21. The scan enable segments EN1 on any two scan lines 21 in the same scan line group Z have the same width, and the scan enable segments EN1 on the scan lines 21 in the two scan line groups Z have different widths. In the embodiment of the invention, the first partition 301 only needs to provide the scan signal with one scan enable width (for example, the first scan enable width W1), and the second partition 302 only needs to provide the scan signal with another scan enable width (for example, the second scan enable width W2), so that the design requirement of the first driving circuit 30 is reduced.

Fig. 8 is a schematic diagram of a top view structure of a touch electrode layer according to an embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 8, the display device further includes a touch electrode layer 60 and a driving chip 40, the touch electrode layer 60 is electrically connected to the driving chip 40, and the touch electrode layer 60 is configured to receive a touch driving signal and generate a touch sensing signal for implementing a touch function. The driving chip 40 is electrically connected to the first driving circuit 30, and the driving chip 40 is configured to generate a touch driving signal and provide a clock control signal to the first driving circuit 30 according to the touch sensing signal. In the embodiment of the present invention, the touch electrode layer 60 and the first driving circuit 30 are electrically connected to the driving chip 40, when a user touches the display device, a touch command is continuously sent to the driving chip 40, and the driving chip 40 can continuously change a control instruction (for example, a clock control signal) sent to the first driving circuit 30 according to the touch command, so as to change the width of the scan enable segment EN1 in the scan signal, and achieve that the durations of at least two scan enable segments EN1 in the same scan frame are not equal. In other embodiments, the internal structure of the driving chip 40 may be changed, so that the driving chip 40 independently transmits the clock control signal and independently transmits the touch driving signal.

Exemplarily, referring to fig. 8, the touch electrode layer 60 includes a plurality of first touch electrodes 61 arranged in a matrix and a plurality of second touch electrodes 62 arranged in a matrix, adjacent first touch electrodes 61 in the same matrix row are electrically connected, and adjacent second touch electrodes 62 in the same matrix column are electrically connected through a bridge 63. The direction of the matrix rows corresponds to the first direction and the direction of the matrix columns corresponds to the second direction. The first touch electrode 61 and the second touch electrode 62 are on the same layer, and the first touch electrode 61 and the bridge 63 are on different layers. The first touch electrode 61 may be a touch driving electrode, and the second touch electrode 62 may be a touch sensing electrode; alternatively, the first touch electrode 61 may be a touch sensing electrode, and the second touch electrode 62 may be a touch driving electrode. In other embodiments, the touch electrode layer 60 may be a self-capacitance touch electrode layer, a different-layer mutual capacitance touch electrode layer, or a resistance touch electrode layer.

Fig. 9 is a schematic top view of another display device according to an embodiment of the present invention, fig. 10 is a timing diagram of driving the another display device according to the embodiment of the present invention, and referring to fig. 1, fig. 9 and fig. 10, the display device further includes a plurality of data lines 22, a second driving circuit 70, a plurality of switch control lines CKH and a driving chip 40. The plurality of data lines 22 cross the plurality of scan lines 21. The plurality of data lines 22 may extend in the second direction and be arranged in the first direction. The second driving circuit 70 is electrically connected to the plurality of data lines 22, and the second driving circuit 70 is configured to supply data signals to the data lines 22. The driving chip 40 is electrically connected to the first driving circuit 30, the driving chip 40 is also electrically connected to the second driving circuit 70 through a switch control line CKH, and the driving chip 40 is configured to provide a switch control signal to the switch control line CKH, the switch control signal including a switch enable segment EN 2. In the same scan enable segment EN1, a switch Gap2 exists between the switch enable segments EN2 on two adjacent switch control lines CKH. At least two of the switch enable segments EN2 have different widths, and/or at least two of the switch gaps Gap2 have different widths. On the basis of the above embodiment, by setting the same scan enable segment EN1, the durations of at least two switch enable segments EN2 are not equal, or the durations of at least two switch gaps Gap2 are not equal, or the durations of at least two switch enable segments EN2 are not equal, and at the same time, the durations of at least two switch gaps Gap2 are not equal, the natural frequency characteristic of the switch control signal is destroyed on the basis of destroying the natural frequency characteristic of the scan signal, so that the electromagnetic interference energy caused by the natural frequency can be further weakened, and the interference of the electromagnetic interference energy to other electronic products is avoided.

Alternatively, referring to fig. 9 and 10, in the same scan enable segment EN1, the switch enable segments EN2 on all the switch control lines CKH have the same width, and at least two scan enable segments EN1, two switch enable segments EN2 respectively located within two scan enable segments EN1 have different widths. In the embodiment of the present invention, the switch enable segments EN2 on all the switch control lines CKH of the same scan enable segment EN1 have the same width, so that the design requirement of the second driving circuit 70 is reduced. There are different widths of the switch enable segment EN2 within different scan enable segments EN1, thereby destroying the natural frequency characteristics of the switch control signals.

Exemplarily, referring to fig. 9 and 10, the display device includes three switch control lines CKH, a first switch control line CKH1, a second switch control line CKH2, and a third switch control line CKH3, respectively. In the scan enable segment EN1 on the first scan line Gate1, the switch enable segment EN2 on the first switch control line CKH1, the second switch control line CKH2 and the third switch control line CKH3 all have the first switch enable width a. In the scan enable segment EN1 on the second scan line Gate2, the switch enable segment EN2 on the first switch control line CKH1, the second switch control line CKH2 and the third switch control line CKH3 all have the second switch enable width b. The first switch enable width a is not equal to the second switch enable width b.

For example, referring to fig. 9 and 10, in the scan enable segment EN1 on the first scan line Gate1, a switch Gap2 existing between the switch enable segment EN2 on the first switch control line CKH1 and the second switch control line CKH2 is referred to as a first switch Gap G1, and a switch Gap2 existing between the switch enable segment EN2 on the second switch control line CKH2 and the third switch control line CKH3 is referred to as a second switch Gap G2. The first switch gap G1 is not equal to the second switch gap G2. In the scan enable segment EN1 on the second scan line Gate2, the presence of the switch Gap2 between the first switch control line CKH1 and the switch enable segment EN2 on the second switch control line CKH2 is referred to as a third switch Gap G3, and the presence of the switch Gap2 between the second switch control line CKH2 and the switch enable segment EN2 on the third switch control line CKH3 is referred to as a fourth switch Gap G4. The third switch gap G3 is not equal to the fourth switch gap G4. Therein, the first switch gap G1 may be equal to the third switch gap G3, or the first switch gap G1 may not be equal to the third switch gap G3. The second switch gap G2 may be equal to the fourth switch gap G4, or the second switch gap G2 may not be equal to the fourth switch gap G4.

Alternatively, referring to fig. 10, a plurality of scan enable segments EN1 having different widths constitute the first repeating unit T1, and the widths of any two scan enable segments EN1 within the first repeating unit T1 are different, that is, a set of a plurality of scan enable segments EN1 of different widths is taken as the first repeating unit T1. The plurality of switch enable segments EN2 having different widths constitute the second repeating unit T2, and any two switch enable segments EN2 within the second repeating unit T2 have different widths, that is, a set of a plurality of switch enable segments EN2 having different widths is used as the second repeating unit T2. The number of scan enable segments EN1 in the first repeating unit T1 is equal to the number of switch enable segments EN2 in the second repeating unit T2. In the embodiment of the invention, the switch enable segments EN2 within the same scan enable segment EN1 width have the same width, the switch enable segments EN2 within different scan enable segments EN1 width have different widths, and the number of width types of the scan enable segments EN1 is equal to the number of width types of the switch enable segments EN 2. The width of the switch enable segment EN2 is changed correspondingly to the width of the scan enable segment EN1, thereby simplifying the design difficulty of the first driving circuit 30 and the second driving circuit 70.

Exemplarily, referring to fig. 10, the first repeating unit T1 includes a scan enable segment EN1 having a first scan enable width W1 and a scan enable segment EN1 having a second scan enable width W2. The second repeating unit T2 includes a switch enable segment EN2 having a first switch enable width a and a switch enable segment EN2 having a second switch enable width b. The number of scan enable segments EN1 in the first repeating unit T1 is two, and the number of switch enable segments EN2 in the second repeating unit T2 is also two. A switch enable segment EN2 having a first switch enable width a is provided within the scan enable segment EN1 having the first scan enable width W1, and a switch enable segment EN2 having a second switch enable width b is provided within the scan enable segment EN1 having the second scan enable width W2.

Fig. 11 is a timing chart of driving of another display device according to an embodiment of the present invention, and referring to fig. 11, in a scan enable segment EN1 on a first scan line Gate1, a switch Gap2 existing between a first switch control line CKH1 and a switch enable segment EN2 on a second switch control line CKH2 is denoted as a first switch Gap G1, and a switch Gap2 existing between a second switch control line CKH2 and a switch enable segment EN2 on a third switch control line CKH3 is denoted as a second switch Gap G2. The first switch gap G1 is not equal to the second switch gap G2. In the scan enable segment EN1 on the second scan line Gate2, the switch Gap2 existing between the switch enable segment EN2 on the first switch control line CKH1 and the second switch control line CKH2 is referred to as a third switch Gap G3, and the switch Gap2 existing between the switch enable segment EN2 on the second switch control line CKH2 and the third switch control line CKH3 is referred to as a fourth switch Gap G4. The third switch gap G3 is not equal to the fourth switch gap G4. In the scan enable segment EN1 on the third scan line Gate3, the switch Gap2 existing between the switch enable segment EN2 on the first switch control line CKH1 and the second switch control line CKH2 is referred to as a fifth switch Gap G5, and the switch Gap2 existing between the switch enable segment EN2 on the second switch control line CKH2 and the third switch control line CKH3 is referred to as a sixth switch Gap G6. The fifth switching gap G5 is not equal to the sixth switching gap G6. Wherein the fifth switch gap G5 may be equal to the first switch gap G1 and the third switch gap G3, or any two of the first switch gap G1, the third switch gap G3, and the fifth switch gap G5 are not equal. Sixth switching gap G6 may be equal to second switching gap G2 and fourth switching gap G4, or any two of second switching gap G2, fourth switching gap G4, and sixth switching gap G6 may not be equal.

Exemplarily, referring to fig. 11, the first repeating unit T1 includes a scan enable segment EN1 having a first scan enable width W1, a scan enable segment EN1 having a second scan enable width W2, and a scan enable segment EN1 having a third scan enable width W3. The second repeating unit T2 includes a switch enable segment EN2 having a first switch enable width a, a switch enable segment EN2 having a second switch enable width b, and a switch enable segment EN2 having a third switch enable width c. The number of scan enable segments EN1 in the first repeating unit T1 is three, and the number of switch enable segments EN2 in the second repeating unit T2 is also three. A switch enable segment EN2 having a first switch enable width a is provided within a scan enable segment EN1 having a first scan enable width W1, a switch enable segment EN2 having a second switch enable width b is provided within a scan enable segment EN1 having a second scan enable width W2, and a switch enable segment EN2 having a third switch enable width c is provided within a scan enable segment EN1 having a third scan enable width W3.

Fig. 12 is a timing diagram of driving another display device according to an embodiment of the present invention, and referring to fig. 12, different from fig. 10, N adjacent scan lines 21 form a scan line group Z, and the plurality of scan lines 21 includes a plurality of scan line groups Z. In the same scan frame of the display phase, the scan enable segments EN1 on any two scan lines 21 have the same width within the same scan line group Z. In the same scan frame of the display phase, there are at least two scan line groups Z, and the scan enable segments EN1 on the two scan lines 21 respectively within the two scan line groups Z have different widths. In the embodiment of the present invention, the number of scan enable segments EN1 in the first repeating unit T1 is equal to the number of scan line groups Z, and the number of switch enable segments EN2 in the second repeating unit T2 is equal to the number of scan line groups Z.

Fig. 13 is a timing diagram illustrating driving of another display device according to an embodiment of the present invention, and referring to fig. 13, in the same scan enable segment EN1, the switch enable segments EN2 on at least two switch control lines CHK have different widths, and all the switch enable segments EN2 on the same switch control line CHK1 have the same width. In the embodiment of the present invention, all the switch enable segments EN2 on the same switch control line CHK1 have the same width, so that the design requirement of the second driving circuit 70 is reduced. There are different widths of the switch enable segments EN2 within the same scan enable segment EN1, thereby destroying the natural frequency characteristics of the switch control signals.

Illustratively, referring to fig. 13, the scan enable segment EN1 on the first scan line Gate1 has a first scan enable width W1, the scan enable segment EN1 on the first scan line Gate1 has a first switch enable width a in the switch enable segment EN2 on the first switch control line CKH1, the switch enable segment EN2 on the second switch control line CKH2 has a second switch enable width b, and the switch enable segment EN2 on the third switch control line CKH3 has a third switch enable width c. The scan enable segment EN1 on the second scan line Gate2 has a second scan enable width W2, the scan enable segment EN1 on the second scan line Gate2 has a first switch enable width a in the switch enable segment EN2 on the first switch control line CKH1, the switch enable segment EN2 on the second switch control line CKH2 has a second switch enable width b, and the switch enable segment EN2 on the third switch control line CKH3 has a third switch enable width c. Any two of the first switch enable width a, the second switch enable width b, and the third switch enable width c are not equal.

For example, referring to fig. 13, in any scan enable segment EN1, a switch Gap2 existing between switch enable segments EN2 on the first switch control line CKH1 and the second switch control line CKH2 is referred to as a first switch Gap G1, and a switch Gap2 existing between switch enable segments EN2 on the second switch control line CKH2 and the third switch control line CKH3 is referred to as a second switch Gap G2. The first switch gap G1 is not equal to the second switch gap G2.

Exemplarily, referring to fig. 1 to 13, the display device further includes a substrate 10, and the scan line 21 and the first driving circuit 30 are located on the substrate 10. The data line 22, the pixel driving transistor 23, the touch electrode layer 60, the second driving circuit 70, and the switch control line CKH are located on the substrate 10. The driving chip 40 is bonded to the substrate 10, and in other embodiments, the driving chip 40 may be bonded to a flexible circuit board, which is bonded to the substrate 10.

Based on the same inventive concept, an embodiment of the present invention further provides a driving method of a display device, including: in the same scan frame of the display phase, a scan Gap1 exists between the scan enable segments EN1 on two adjacent scan lines 21, the scan enable segments EN1 on at least two scan lines 21 have different widths, and all the scan gaps Gap1 have the same width. The driving method provided by the embodiment of the invention is based on the display device in the embodiment, and has the beneficial effects of the display device in the embodiment, namely, the inherent frequency characteristic of the scanning signal is destroyed by setting the unequal time lengths of at least two scanning enabling sections in the same scanning frame, so that the electromagnetic interference energy caused by the inherent frequency can be weakened, and the interference of the electromagnetic interference energy to other electronic products is avoided.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display device is characterized by comprising a plurality of scanning lines and at least one first driving circuit, wherein the scanning lines are sequentially arranged, the first driving circuit is electrically connected with the scanning lines and is configured to provide scanning signals to the scanning lines, and the scanning signals comprise a scanning enabling section;

2. The display device according to claim 1, wherein M adjacent scan lines form a scan line group, and a plurality of scan lines includes a plurality of the scan line groups;

in the same scanning frame in the display stage, in the same scanning line group, the scanning enabling sections on any two scanning lines have different widths;

in the same scanning frame of the display stage, a scanning enabling section on the ith scanning line and a scanning enabling section on the (i + M) th scanning line have the same width;

wherein i and M are positive integers, M is more than or equal to 2, and i is more than or equal to 1.

3. The display device according to claim 1, wherein the at least one first driver circuit includes a first sub driver circuit and a second sub driver circuit, the first sub driver circuit being electrically connected to the scan lines of odd-numbered stripes, the second sub driver circuit being electrically connected to the scan lines of even-numbered stripes.

4. The display device according to claim 1, wherein the at least one first driving circuit comprises a first sub-driving circuit and a second sub-driving circuit, and the first sub-driving circuit and the second sub-driving circuit are electrically connected to the same scanning line.

5. The display device according to claim 1, wherein N adjacent scan lines form a scan line group, and the scan lines include a plurality of the scan line groups;

in the same scanning frame in the display stage, in the same scanning line group, the scanning enabling sections on any two scanning lines have the same width;

in the same scanning frame in the display stage, at least two scanning line groups exist, and scanning enabling sections respectively positioned on two scanning lines in the two scanning line groups have different widths;

wherein N is a positive integer and is more than or equal to 2.

6. The display device according to claim 5, wherein the first driving circuit comprises a plurality of cascaded shift registers, and output terminals of the shift registers are electrically connected to the scanning lines;

the first driving circuit comprises a first partition and a second partition, wherein the input ends of a plurality of shift registers positioned in the first partition are electrically connected with a first clock control line, and the input ends of a plurality of shift registers positioned in the second partition are electrically connected with a second clock control line.

7. The display device according to claim 1, further comprising a touch electrode layer and a driving chip, wherein the touch electrode layer is electrically connected to the driving chip and configured to receive a touch driving signal and generate a touch sensing signal;

the driving chip is electrically connected with the first driving circuit, and is configured to generate the touch driving signal and provide a clock control signal to the first driving circuit according to the touch sensing signal.

8. The display device according to claim 1, further comprising a plurality of data lines, a second driving circuit, a plurality of switch control lines, and a driving chip; the data lines are crossed with the scanning lines; the second driving circuit is electrically connected with the data lines and is configured to provide data signals to the data lines; the driving chip is electrically connected with the first driving circuit and the second driving circuit through the switch control line, and is configured to provide a switch control signal to the switch control line, wherein the switch control signal comprises a switch enable segment; in the same scanning enabling section, a switch gap exists between the switch enabling sections on two adjacent switch control lines;

at least two of the switch enable segments have different widths, and/or at least two of the switch gaps have different widths.

9. The display device according to claim 8, wherein the switch enable segments on all the switch control lines in the same scan enable segment have the same width, and at least two of the scan enable segments, two of the switch enable segments respectively located in two of the scan enable segments have different widths.

10. The display device according to claim 8, wherein the switch enable segments on at least two of the switch control lines in the same scan enable segment have different widths, and all the switch enable segments on the same switch control line have the same width.

11. The display device according to claim 9, wherein a plurality of the scan enable segments having different widths constitute a first repeating unit, a plurality of the switch enable segments having different widths constitute a second repeating unit, and the number of the scan enable segments in the first repeating unit is equal to the number of the switch enable segments in the second repeating unit.

12. A driving method of a display device according to any one of claims 1 to 11, comprising: