CN112558352A - Display device and driving method thereof - Google Patents
Display device and driving method thereof Download PDFInfo
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- CN112558352A CN112558352A CN202011412310.6A CN202011412310A CN112558352A CN 112558352 A CN112558352 A CN 112558352A CN 202011412310 A CN202011412310 A CN 202011412310A CN 112558352 A CN112558352 A CN 112558352A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
Abstract
The application provides a display device and a driving method thereof, the display device comprises a display panel and a driving chip, the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, a first driving circuit is arranged in the first display area, and a second driving circuit is arranged in the second display area; the driving chip is arranged in the middle of the display panel, the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, and the driving chip is arranged in the middle of the display panel, so that the distance from a light-emitting device such as a Mini-LED to the driving chip in the first display area and the second display area is reduced, the lengths of a first data line in the first display area and a second data line in the second display area are more uniform, and the problem that the brightness of a display device is uneven due to the fact that the length difference of different data lines such as the first data line and the second data line is larger is avoided.
Description
Technical Field
The present disclosure relates to display devices, and particularly to a display device and a driving method thereof.
Background
In recent years, Liquid Crystal Displays (LCDs) have been widely used, such as televisions or personal computers. However, the response speed of the LCD is low due to the inherent characteristics of the liquid crystal cell (liquid crystal cell), and thus, in order to increase the response speed, the overdrive method is applied to the LCD. Mini light emitting diodes (Mini-LEDs) are products with chip sizes below 200 microns. Mini-LEDs are used in LCD backlight sources in the market, because they can achieve ultra-thin and multi-partition functions, and at the same time, they use small-sized chips, which can compare favourably with Organic Light Emitting Diode (OLED) displays in terms of display effect, and have competitive advantages over OLEDs in terms of material cost.
At present, Mini-LEDs are used in the market for LCD display backlight sources, however, because a control Integrated Circuit (IC) is located at one end of an LCD, distances between the Mini-LEDs and the control IC are different, and a difference in length of data traces connected between the Mini-LEDs and the control IC is large, so that a difference in impedance is large, and a large voltage difference exists in a vertical direction in which the data traces extend, so that uneven brightness of a display device is caused.
Disclosure of Invention
The application provides a display device and a driving method thereof, which are used for solving the technical problem that the brightness and darkness of the display device are uneven due to the fact that different data routing lengths and impedance differences in the existing display device are large.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a display device, including:
the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, wherein a first driving circuit is arranged in the first display area, and a second driving circuit is arranged in the second display area; and
the driving chip is respectively connected with the first driving circuit and the second driving circuit and drives the first display area and the second display area to display;
the driving chip is disposed in the middle of the display panel, the first driving circuit includes a plurality of first data lines parallel to the first direction, and the second driving circuit includes a plurality of second data lines parallel to the first direction.
The display device provided by the embodiment of the application further comprises a conduction switching unit, wherein the conduction switching unit is respectively connected with the driving chip, the first driving circuit and the second driving circuit, and the driving chip controls the working state of the conduction switching unit to switch the on-off state of the first driving circuit and the second driving circuit;
the on-off states of the driving chip and the first driving circuit and the second driving circuit comprise:
the first state: the driving chip is connected with the first driving circuit, and the driving chip is disconnected with the second driving circuit; and
the second state: the driving chip is connected with the second driving circuit, and the driving chip is disconnected with the first driving circuit.
In the display device provided in the embodiment of the present application, the conduction switching unit includes a selection switch, the driving chip is respectively connected to the input terminal and the control terminal of the selection switch, and the selection output terminal of the selection switch is selectively connected to the first driving circuit and the second driving circuit.
In the display device provided in the embodiment of the present application, each of the first and second driving circuits includes a plurality of scanning lines perpendicular to the first direction;
in a driving period, the on-off states of the driving chip and the first driving circuit and the second driving circuit are switched between the first state and the second state, and the driving chip outputs a driving signal to one scanning line in the first display area or one scanning line in the second display area every time the first state or the second state is switched, wherein the driving chip outputs the driving signal to different scanning lines every time.
In the display device provided in the embodiment of the present application, the first driving circuit and the second driving circuit include 2k scan lines in total, the first driving circuit includes 1 st to k th scan lines located in the first display region, the second driving circuit includes k +1 th to 2k scan lines located in the second display region, where k is a positive integer; the scanning direction of the first display area is the same as or opposite to the scanning direction of the second display area.
In the display device provided in the embodiment of the present application, the scanning direction of the first display area and the scanning direction of the second display area are the same, including:
the scanning direction of the first display area is from 1 st to kth scanning lines, and the scanning direction of the second display area is from k +1 st to 2 kth scanning lines; or
The scanning direction of the first display area is from the kth scanning line to the 1 st scanning line, and the scanning direction of the second display area is from the 2 kth scanning line to the (k + 1) th scanning line.
In the display device provided in the embodiment of the present application, the scanning direction of the first display area and the scanning direction of the second display area are opposite to each other, including:
the scanning direction of the first display area is from 1 st to kth scanning lines, and the scanning direction of the second display area is from 2 kth to kth +1 th scanning lines; or
The scanning direction of the first display area is the k-th to 1-th scanning lines, and the scanning direction of the second display area is the (k + 1) -2 k-th scanning lines.
In the display device provided in the embodiment of the present application, in two adjacent scan lines, a scan time of a driving signal received by one scan line far away from the driving chip is longer than a scan time of a driving signal received by another scan line close to the driving chip.
The present application also provides a driving method of a display device, the display device including:
the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, wherein a first driving circuit is arranged in the first display area, and a second driving circuit is arranged in the second display area;
the driving chip is respectively connected with the first driving circuit and the second driving circuit and drives the first display area and the second display area to display;
the driving chip is arranged in the middle of the display panel, the first driving circuit comprises a plurality of first data lines parallel to the first direction, the second driving circuit comprises a plurality of second data lines parallel to the first direction, and the first driving circuit and the second driving circuit both comprise a plurality of scanning lines perpendicular to the first direction;
the driving method of the display device includes the steps of:
in a driving period, the on-off states of the driving chip and the first driving circuit and the second driving circuit are switched between the first state and the second state, each time the first state or the second state is switched, the driving chip outputs a driving signal to one scanning line in the first display area or one scanning line in the second display area, and each time the driving chip outputs a driving signal to different scanning lines;
wherein the first state is: the driving chip is connected with the first driving circuit, and the driving chip is disconnected with the second driving circuit;
the second state is: the driving chip is connected with the second driving circuit, and the driving chip is disconnected with the first driving circuit.
In the driving method of the display device provided in the embodiment of the present application, each driving period includes a normal driving period and a normal blank period, and an interval time between two adjacent driving periods is zero;
dividing the regular driving period into a plurality of regular driving subsections and dividing the regular blank period into a plurality of regular blank subsections according to the number of the scanning lines, wherein the scanning time of the driving signal received by each scanning line at least comprises one regular driving subsection and one regular blank subsection.
Has the advantages that: this application is through inciting somebody to action display panel sets up to including at least along first direction parallel arrangement's first display area and second display area, and with driver chip set up in display panel's middle part, reduced in first display area and the second display area such as emitting device such as Mini-LED arrive driver chip's distance for it is more even to be located first data line in the first display area and to be located the length of second data line in the second display area, avoids such as different data lines such as first data line and second data line because the great uneven problem that leads to the display device to shine dark of length difference.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of one side of a display device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another side of a display device according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a connection relationship between functional portions of a display device according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a comparison between a driving period and a conventional driving period in a driving method of a display device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the process that the Mini-LEDs are widely applied to the LCD backlight source, because the control IC is positioned at one end of the LCD, the distances between the Mini-LEDs and the control IC are different, and the length difference of the data routing lines connected between the Mini-LEDs and the control IC is larger, the impedance difference is larger, so that the data routing lines have larger pressure difference in the vertical direction extending from the data routing lines, and the brightness and darkness of the display device are uneven. Therefore, the present application provides a display device based on the above technical problem, and the specific scheme is as follows:
referring to fig. 1 to 3, the display device includes:
the display device comprises a display panel 100, wherein the display panel 100 at least comprises a first display area 101 and a second display area 102 which are arranged in parallel along a first direction 103, a first driving circuit 10 is arranged in the first display area 101, and a second driving circuit 20 is arranged in the second display area 102; and
the driving chip 200 is respectively connected to the first driving circuit 10 and the second driving circuit 20, and the driving chip 200 drives the first display area 101 and the second display area 102 to display;
the driving chip 200 is disposed in the middle of the display panel 100, the first driving circuit 10 includes a plurality of first data lines 11 parallel to the first direction 103, and the second driving circuit 20 includes a plurality of second data lines 21 parallel to the first direction 103.
It can be understood that, in this embodiment, by disposing the display panel 100 to include at least the first display area 101 and the second display area 102 that are disposed in parallel along the first direction 103, and disposing the driving chip 200 in the middle of the display panel 100, the distance from the light emitting device, such as a Mini-LED, in the first display area 101 and the second display area 102 to the driving chip 200 is reduced, so that the lengths of the first data line 11 located in the first display area 101 and the second data line 21 located in the second display area 102 are more uniform, and the problem of uneven brightness of the display device due to the large length difference between different data lines, such as the first data line 11 and the second data line 21, is avoided; specifically, in the first direction 103, the distances from the driving chip 200 to the two ends of the display panel 100 are equal, in the direction perpendicular to the first direction 103, the distances from the driving chip 200 to the two sides of the display panel 100 are equal, the sizes of the first display area 101 and the second display area 102 are equal, the number of the first data lines 11 is equal to the number of the second data lines 21, and the first data lines and the second data lines are in one-to-one correspondence, and obviously, compared with the impedance of the data routing line in which the control IC is currently disposed in the LCD end structure, in this embodiment, the impedance of the first data lines 11 or the second data lines 21 is reduced by about one half compared with the impedance of the existing data routing line structure.
It is noted that the display panel 100 may include a substrate, and the first driving circuit 10 and the second driving circuit 20 may further include a plurality of Mini-LEDs, specifically, the driving chip 200 and the Mini-LEDs are respectively disposed on two sides of the substrate, and the driving chip 200 is located in the middle of the display panel 100.
In an embodiment, referring to fig. 3, the display device further includes a conduction switching unit, the conduction switching unit is respectively connected to the driving chip 200, the first driving circuit 10 and the second driving circuit 20, and the driving chip 200 controls a working state of the conduction switching unit to switch on/off states of the first driving circuit 10 and the second driving circuit 20;
the on/off states of the driving chip 200 and the first and second driving circuits 10 and 20 include:
the first state: the driving chip 200 is connected to the first driving circuit 10, and the driving chip 200 is disconnected from the second driving circuit 20; and
the second state: the driving chip 200 is turned on with the second driving circuit 20, and the driving chip 200 is turned off with the first driving circuit 10.
It can be understood that the on-off switching unit can adjust the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 according to the control signal of the driving chip 200, obviously, when the driving chip 200 drives the first driving circuit 10, the driving chip 200 can control the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 to be switched to the first state, that is, the driving chip 200 is on with the first driving circuit 10, and the driving chip 200 is off with the second driving circuit 20; when the driving chip 200 drives the second driving circuit 20, the driving chip 200 can control the on-off state of the first driving circuit 10 and the second driving circuit 20 to be switched to the second state, that is, the driving chip 200 is connected to the second driving circuit 20, and the driving chip 200 is disconnected from the first driving circuit 10; the direction of the output voltage of the driving chip 200 can be freely switched by the arrangement of the conduction switching unit, when the first driving circuit 10 needs to be driven, the first driving circuit 10 is connected, and the second driving circuit 20 is disconnected, when the first driving circuit 10 needs to be driven, the second driving circuit 20 is connected, and the first driving circuit 10 is disconnected, so that unnecessary leakage current can be well reduced, and the power consumption of the display device can be saved.
In an embodiment, referring to fig. 3, the conducting switching unit includes a selection switch 210, the driving chip 200 is respectively connected to an input terminal 211 and a control terminal 212 of the selection switch 210, and a selection output terminal 213 of the selection switch 210 is selectively connected to the first driving circuit 10 and the second driving circuit 20; it can be understood that the conduction switching unit is similar to a controllable single-pole double-throw switch, in this embodiment, the selection switch 210 controls the connection state between the input end 211 of the selection switch 210 and the two selection output ends 213 of the selection switch 210 according to the control signal received by the control end 212 from the driving chip 200, so as to achieve the purpose of switching the on-off states of the driving chip 200 and the first and second driving circuits 10 and 20.
In an embodiment, referring to fig. 1 to 3, the first driving circuit 10 and the second driving circuit 20 each include a plurality of scan lines perpendicular to the first direction 103;
in a driving cycle, the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, and each time the first state or the second state is switched, the driving chip 200 outputs a driving signal to one scanning line in the first display area 101 or one scanning line in the second display area 102, wherein each time the driving chip 200 outputs a driving signal to a different scanning line.
It can be understood that, in a driving cycle, when the driving chip 200 alternately outputs a driving signal to one of the scanning lines in the first display area 101 and one of the scanning lines in the second display area 102, during which the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the first state, the driving chip 200 outputs a driving signal to one of the scanning lines in the first display area 101, and when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the second state, the driving chip 200 outputs a driving signal to one of the scanning lines in the second display area 102, in the driving period of this time, the driving chip 200 outputs driving signals to different scanning lines each time, and enters the next driving period until all the scanning lines are scanned.
In an embodiment, referring to fig. 1 to 3, the first driving circuit 10 and the second driving circuit 20 include 2k scan lines, the first driving circuit 10 includes 1 st to k scan lines in the first display area 101, the second driving circuit 20 includes k +1 to 2k scan lines in the second display area 102, where k is a positive integer; the scanning direction of the first display area 101 is the same as or opposite to the scanning direction of the second display area 102.
It can be understood that the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, and each time the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the first state, the scanning direction of the first display area 101 may be the same as the first direction 103 or opposite to the first direction 103, obviously, each time the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the second state, the scanning direction of the second display area 102 may be the same as the first direction 103 or opposite to the first direction 103, and details are not repeated here.
In this embodiment, the scanning direction of the first display area 101 is the same as the scanning direction of the second display area 102, including:
the scanning direction of the first display area 101 is the 1 st to the kth scanning lines, and the scanning direction of the second display area 102 is the (k + 1) th to the 2 kth scanning lines; or
The scanning direction of the first display area 101 is the k-th to 1-th scanning lines, and the scanning direction of the second display area 102 is the 2 k-th to k + 1-th scanning lines.
In this embodiment, the scanning direction of the first display area 101 and the scanning direction of the second display area 102 are opposite to each other, and the method includes:
the scanning direction of the first display area 101 is the 1 st to the kth scanning lines, and the scanning direction of the second display area 102 is the 2k to the (k + 1) th scanning lines; or
The scanning direction of the first display area 101 is the k-th to 1-th scanning lines, and the scanning direction of the second display area 102 is the (k + 1) -th to 2 k-th scanning lines.
It can be understood that, in a driving cycle, when the driving chip 200 alternately outputs a driving signal to one of the scanning lines in the first display area 101 and one of the scanning lines in the second display area 102, during which the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the first state, the driving chip 200 outputs a driving signal to one of the scanning lines in the first display area 101, and when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the second state, the driving chip 200 outputs a driving signal to one of the scanning lines in the second display area 102, in the driving period of this time, the driving chip 200 outputs driving signals to different scanning lines each time, and enters the next driving period until all the scanning lines are scanned.
In an embodiment, in two adjacent scan lines, a scan time of a drive signal received by one scan line far away from the driver chip 200 is longer than a scan time of a drive signal received by another scan line close to the driver chip 200; it can be understood that in the embodiment of the present application, by disposing the driving chip 200 in the middle of the display panel 100, the lengths of the first data lines 11 in the first display area 101 and the second data lines 21 in the second display area 102 are more uniform, so as to avoid the uneven brightness of the display device, and although the length and the impedance difference between each of the first data lines 11 and/or each of the second data lines 21 are reduced, the length and the impedance difference between each of the first data lines 11 and/or each of the second data lines 21 still exist, in order to further improve the uniformity of the display device,
the present application further provides a driving method of a display device, please refer to fig. 1 to 3, the display device includes:
the display device comprises a display panel 100, wherein the display panel 100 at least comprises a first display area 101 and a second display area 102 which are arranged in parallel along a first direction 103, a first driving circuit 10 is arranged in the first display area 101, and a second driving circuit 20 is arranged in the second display area 102;
the driving chip 200 is respectively connected to the first driving circuit 10 and the second driving circuit 20, and the driving chip 200 drives the first display area 101 and the second display area 102 to display;
the driving chip 200 is disposed in the middle of the display panel 100, the first driving circuit 10 includes a plurality of first data lines 11 parallel to the first direction 103, the second driving circuit 20 includes a plurality of second data lines 21 parallel to the first direction 103, and both the first driving circuit 10 and the second driving circuit 20 include a plurality of scan lines perpendicular to the first direction 103;
the driving method of the display device includes the steps of:
in a driving period T1, the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, and each time the driving chip 200 switches between the first state and the second state, the driving chip 200 outputs a driving signal to one scanning line in the first display area 101 or one scanning line in the second display area 102, and each time the driving chip 200 outputs a driving signal to a different scanning line;
wherein the first state is: the driving chip 200 is connected to the first driving circuit 10, and the driving chip 200 is disconnected from the second driving circuit 20;
the second state is: the driving chip 200 is turned on with the second driving circuit 20, and the driving chip 200 is turned off with the first driving circuit 10.
It can be understood that, in a specific driving process, in one driving period T1, the driving chip 200 alternately outputs a driving signal to one of the scan lines in the first display area 101 and one of the scan lines in the second display area 102, in this process, the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched between the first state and the second state, when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the first state, the driving chip 200 outputs a driving signal to one of the scan lines in the first display area 101, and when the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 are switched to the second state, the driving chip 200 outputs a driving signal to one of the scan lines in the second display area 102, in the current driving period T1, the driving chip 200 outputs driving signals to different scanning lines each time, and enters the next driving period T1 until all the scanning lines are scanned; specifically, referring to fig. 3, switching of the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 may be realized by one of the on-off switching units, and the on-off switching unit may adjust the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 according to a control signal of the driving chip 200, obviously, when the driving chip 200 drives the first driving circuit 10, the driving chip 200 may control the on-off states of the driving chip 200 and the first driving circuit 10 and the second driving circuit 20 to be switched to the first state, that is, the driving chip 200 is turned on with the first driving circuit 10, and the driving chip 200 is turned off with the second driving circuit 20; when the driving chip 200 drives the second driving circuit 20, the driving chip 200 can control the on-off state of the first driving circuit 10 and the second driving circuit 20 to be switched to the second state, that is, the driving chip 200 is connected to the second driving circuit 20, and the driving chip 200 is disconnected from the first driving circuit 10; the direction of the output voltage of the driving chip 200 can be freely switched by the arrangement of the conduction switching unit, when the first driving circuit 10 needs to be driven, the first driving circuit 10 is connected, and the second driving circuit 20 is disconnected, when the first driving circuit 10 needs to be driven, the second driving circuit 20 is connected, and the first driving circuit 10 is disconnected, so that unnecessary leakage current can be well reduced, and the power consumption of the display device can be saved.
In one embodiment, referring to fig. 4, each of the driving periods T1 includes a regular driving period T2 and a regular blank period T3, and the interval between two adjacent driving periods T1 is zero;
the normal driving period T2 is divided into a plurality of normal driving subsections according to the number of the scanning lines, the normal blank period T3 is divided into a plurality of normal blank subsections, and the scanning time of the driving signal received by each scanning line at least comprises one normal driving subsection and one normal blank subsection.
It can be understood that in the conventional driving method, a conventional blanking period T3 is provided between two adjacent conventional driving periods T2, that is, after each scanning of each scanning trace is completed by the conventional driving period T2, a conventional blanking period T3 is provided as an interval, in this embodiment, the driving period T1 includes a normal driving period T2 and a normal blank period T3, i.e. the driving period T1 is longer than the normal driving period T2 by a normal blank period T3, increasing the overall scanning time, in an embodiment, the number of the scan lines may be 2k, and the conventional blank period T3 may be correspondingly divided into 2k conventional blank subsections which are respectively added to the scan time of each scan line, so as to increase the scan time of each scan line and achieve a better charging effect.
According to the display device, the display panel 100 at least comprises the first display area 101 and the second display area 102 which are arranged in parallel along the first direction 103, and the driving chip 200 is arranged in the middle of the display panel 100, so that the distance from a light-emitting device such as a Mini-LED in the first display area 101 and the second display area 102 to the driving chip 200 is reduced, the lengths of the first data line 11 in the first display area 101 and the second data line 21 in the second display area 102 are more uniform, and the problem that the brightness and the darkness of the display device are uneven due to the fact that the length difference of different data lines such as the first data line 11 and the second data line 21 is large is avoided.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display device, comprising:
the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, wherein a first driving circuit is arranged in the first display area, and a second driving circuit is arranged in the second display area; and
the driving chip is respectively connected with the first driving circuit and the second driving circuit and drives the first display area and the second display area to display;
the driving chip is disposed in the middle of the display panel, the first driving circuit includes a plurality of first data lines parallel to the first direction, and the second driving circuit includes a plurality of second data lines parallel to the first direction.
2. The display device according to claim 1, further comprising a conduction switching unit, wherein the conduction switching unit is respectively connected to the driving chip, the first driving circuit and the second driving circuit, and the driving chip controls an operating state of the conduction switching unit to switch on/off states of the first driving circuit and the second driving circuit;
the on-off states of the driving chip and the first driving circuit and the second driving circuit comprise:
the first state: the driving chip is connected with the first driving circuit, and the driving chip is disconnected with the second driving circuit; and
the second state: the driving chip is connected with the second driving circuit, and the driving chip is disconnected with the first driving circuit.
3. The display device according to claim 2, wherein the conduction switching unit comprises a selection switch, the driving chip is connected to an input terminal and a control terminal of the selection switch, respectively, and a selection output terminal of the selection switch is selectively connected to the first driving circuit and the second driving circuit.
4. The display device according to claim 2, wherein the first driver circuit and the second driver circuit each include a plurality of scan lines perpendicular to the first direction;
in a driving period, the on-off states of the driving chip and the first driving circuit and the second driving circuit are switched between the first state and the second state, and the driving chip outputs a driving signal to one scanning line in the first display area or one scanning line in the second display area every time the first state or the second state is switched, wherein the driving chip outputs the driving signal to different scanning lines every time.
5. The display device according to claim 4, wherein the first driver circuit and the second driver circuit include 2k scan lines in total, wherein the first driver circuit includes 1 st to k th scan lines in the first display region, wherein the second driver circuit includes k +1 th to 2k scan lines in the second display region, and wherein k is a positive integer; the scanning direction of the first display area is the same as or opposite to the scanning direction of the second display area.
6. The display device according to claim 5, wherein the scanning direction of the first display region being the same as the scanning direction of the second display region comprises:
the scanning direction of the first display area is from 1 st to kth scanning lines, and the scanning direction of the second display area is from k +1 st to 2 kth scanning lines; or
The scanning direction of the first display area is from the kth scanning line to the 1 st scanning line, and the scanning direction of the second display area is from the 2 kth scanning line to the (k + 1) th scanning line.
7. The display device according to claim 5, wherein a scanning direction of the first display region opposite to a scanning direction of the second display region comprises:
the scanning direction of the first display area is from 1 st to kth scanning lines, and the scanning direction of the second display area is from 2 kth to kth +1 th scanning lines; or
The scanning direction of the first display area is the k-th to 1-th scanning lines, and the scanning direction of the second display area is the (k + 1) -2 k-th scanning lines.
8. The display device according to claim 4, wherein a scanning time of the driving signal received by one of the scanning lines far from the driving chip is longer than a scanning time of the driving signal received by the other scanning line near to the driving chip.
9. A driving method of a display device, the display device comprising:
the display panel at least comprises a first display area and a second display area which are arranged in parallel along a first direction, wherein a first driving circuit is arranged in the first display area, and a second driving circuit is arranged in the second display area;
the driving chip is respectively connected with the first driving circuit and the second driving circuit and drives the first display area and the second display area to display;
the driving chip is arranged in the middle of the display panel, the first driving circuit comprises a plurality of first data lines parallel to the first direction, the second driving circuit comprises a plurality of second data lines parallel to the first direction, and the first driving circuit and the second driving circuit both comprise a plurality of scanning lines perpendicular to the first direction;
the driving method of the display device includes the steps of:
in a driving period, the on-off states of the driving chip and the first driving circuit and the second driving circuit are switched between the first state and the second state, each time the first state or the second state is switched, the driving chip outputs a driving signal to one scanning line in the first display area or one scanning line in the second display area, and each time the driving chip outputs a driving signal to different scanning lines;
wherein the first state is: the driving chip is connected with the first driving circuit, and the driving chip is disconnected with the second driving circuit;
the second state is: the driving chip is connected with the second driving circuit, and the driving chip is disconnected with the first driving circuit.
10. The method for driving a display device according to claim 9, wherein each of the driving periods comprises a regular driving period and a regular blank period, and an interval time between two adjacent driving periods is zero;
dividing the regular driving period into a plurality of regular driving subsections and dividing the regular blank period into a plurality of regular blank subsections according to the number of the scanning lines, wherein the scanning time of the driving signal received by each scanning line at least comprises one regular driving subsection and one regular blank subsection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011412310.6A CN112558352B (en) | 2020-12-04 | 2020-12-04 | Display device and driving method thereof |
| PCT/CN2020/140702 WO2022116333A1 (en) | 2020-12-04 | 2020-12-29 | Display device and driving method therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011412310.6A CN112558352B (en) | 2020-12-04 | 2020-12-04 | Display device and driving method thereof |
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| CN112558352B CN112558352B (en) | 2022-02-22 |
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| CN112558352B (en) | 2022-02-22 |
| WO2022116333A1 (en) | 2022-06-09 |
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