CN107507593B - Display panel, driving method thereof and display device - Google Patents
Display panel, driving method thereof and display device Download PDFInfo
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- CN107507593B CN107507593B CN201710846584.8A CN201710846584A CN107507593B CN 107507593 B CN107507593 B CN 107507593B CN 201710846584 A CN201710846584 A CN 201710846584A CN 107507593 B CN107507593 B CN 107507593B
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- driving
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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
- G09G3/36—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 using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
Abstract
The present invention provides a display panel including: the driving circuit is arranged on two sides of the display panel and comprises at least one driving unit; and the two ends of each line scanning line are connected with the driving unit, each line scanning line is provided with an interruption area, and the driving signal stops in the interruption area. The invention also provides a driving method of the display panel and a display device. The invention can quickly determine the fault position when the driving circuit has faults by arranging the interruption region in the line scanning line.
Description
Technical Field
The present invention relates to the field of display devices, and in particular, to a display panel, a driving method thereof, and a display apparatus.
Background
With the improvement of living standards and the development of technologies, liquid crystal displays have been increasingly applied to display devices and portable electronic devices. The conventional display panel is implemented based on a Gate Driver on Array (GOA) driving manner, which is a process technology for directly manufacturing a Gate Driver IC on an Array substrate to drive a row scan line (H-line) instead of a driving chip manufactured by an external silicon chip. However, the existing GOA panel may have line scanning errors during the use process, and since each line scanning line is driven by two GOA circuits at the same time, it is difficult to determine which side of the GOA circuit has a problem, which brings great inconvenience to the maintenance.
Disclosure of Invention
The invention mainly aims to provide a display panel, a driving method thereof and a display device, and aims to reduce the maintenance difficulty of the display panel.
To achieve the above object, the present invention provides a display panel including:
a display substrate;
the driving circuit is arranged on two sides of the substrate and comprises at least one driving unit; and
the line scanning lines are arranged on the display substrate in parallel, each line scanning line comprises an interruption area and two scanning areas arranged on two sides of the interruption area, and the scanning areas are connected with the driving circuit.
In addition, the present invention further provides a display panel driving method, applied to the display panel, the method including the steps of:
acquiring a driving instruction;
and controlling the driving units connected to the two ends of each row of scanning lines to send driving signals to drive the scanning areas of the row of scanning lines according to the driving instructions.
Optionally, after the step of controlling the driving units connected to the two ends of each row of scanning lines to send driving signals to drive the scanning areas of the row of scanning lines according to the driving instructions, the method further includes:
regularly acquiring the driving state of each line scanning area;
judging whether each row of scanning lines is normally driven;
when a row scanning line is not normally driven, a driving unit connected to the row scanning line not normally driven is marked as an error.
Optionally, the method further includes:
when the existence of the driving unit marked as an error is detected, two scanning areas of the row scanning line which is not normally driven are connected in the interruption area of the row scanning line.
Optionally, connecting two scanning areas of a row scanning line that is not normally driven in an interruption area of the row scanning line specifically includes:
and welding the scanning areas of the row scanning lines which are not normally driven and are positioned at the two sides of the interruption area in the interruption area.
Optionally, the method further includes:
the drive unit marked as erroneous is switched off.
Optionally, the turning off the driving unit marked as the error includes:
the connection between the drive unit marked as an error and the row scanning line is cut off with laser light.
In addition, the invention also provides a display device which comprises the display panel. In addition, the invention also provides a display device which comprises the display panel.
The display panel comprises a display substrate, a driving circuit and row scanning lines, wherein the driving circuit is arranged on two sides of the display panel and comprises at least one driving unit; and the plurality of line scanning lines are arranged on the display substrate in parallel, each line scanning line comprises an interruption area and two scanning areas arranged on two sides of the interruption area, and the scanning areas are connected with the driving circuit. In the technical scheme of the invention, as each line scanning line is provided with the interrupt area, the driving signal stops in the interrupt area, so that once a certain driving unit fails to cause that the corresponding half line scanning line can not be normally scanned, the fault position can be quickly determined.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic view of another structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a flowchart of a driving method of a display panel according to a first embodiment of the present invention;
FIG. 4 is a flowchart of a driving method of a display panel according to a second embodiment of the present invention;
FIG. 5 is a flowchart of a driving method of a display panel according to a third embodiment of the present invention;
FIG. 6 is a flowchart of a driving method of a display panel according to a fourth embodiment of the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive step, are within the scope of the present invention.
The present invention provides a display panel 100.
In an embodiment, the display panel 100 includes a display substrate 10 and a driving circuit disposed on two sides of the display substrate 10, wherein a plurality of row scan lines 30 are disposed on the display substrate 10 in parallel, and the driving circuit includes at least one driving unit.
As shown in fig. 1, a plurality of scan lines 30 parallel to each other are disposed on a display substrate 100, each scan line 30 includes an interruption region 31 and two scan regions 32 disposed at two sides of the interruption region 31.
The display substrate 10 is provided with driving circuits on both sides. In one embodiment, a first driving circuit 21 is disposed on one side of the display substrate 10, a second driving circuit 22 is disposed on the other side of the display substrate 10, the first driving circuit 21 includes at least one first driving unit, the second driving circuit 22 includes at least one second driving unit, a plurality of horizontally disposed row scanning lines 30 are closely arranged on the display panel, and one first driving unit and one second driving unit are connected to ends of scanning regions 32 on both sides of the same row scanning line 30.
It should be understood that, in the present embodiment, the display panel 100 is an opposite direction dual-drive display panel, and in the present embodiment, the row scan lines 30 of the display panel 100 are each provided with an interruption region 31 through which a driving signal cannot pass. In a specific use process, the driving signal from the first driving unit or the second driving unit cannot pass through the interruption region 31, so that in an actual operation process, each first driving unit or each second driving unit is equivalent to driving only half of the row scanning lines 30. On the other hand, the larger the display panel is, the less effective the driving circuit drives the row scanning lines 30 due to the limitation of the resistance of the display panel itself. In the present embodiment, by providing a break area 31 on the row scan line 30, the length of the row scan line 30 actually driven by each driving circuit is shortened.
Further, in the present embodiment, in order to balance the working loads of the driving circuits on both sides, the interruption region 31 is disposed in the center of the row scanning line 30, and the width of the interruption region 31 is set as small as possible, specifically, it should be smaller than 1 pixel, and 0.1 pixel is taken as an example in the present embodiment. It should be understood that if the width of the interruption region 31 is too large, the middle of the screen cannot be displayed normally. In practical use, when the width of the interruption region 31 is smaller than 1 pixel, it cannot be perceived by naked eyes, so that the influence on the display effect of the display panel 100 can be minimized.
Referring to fig. 3, the present invention further provides a driving method of a driving circuit, which is applied to the display panel 10 and includes the steps of:
s10, acquiring a driving instruction;
and S20, controlling the driving units connected to the two ends of each row of scanning lines 30 to send driving signals to drive the scanning areas 32 of the row of scanning lines 30 according to the driving instructions.
In this embodiment, after the driving instruction is obtained, the first driving unit and the second driving unit corresponding to each row scanning line 30 will operate to drive the row scanning line 30. Since the interruption region 31 is provided in the middle of each row scanning line 30, it is actually equivalent to that each of the first driving unit and the second driving unit drives only half row scanning lines 30.
Referring to fig. 4, optionally, after the step S20, the method further includes the steps of:
and S30, acquiring the driving state of each row scanning line 30 at regular time.
S40, determine whether each row of the scanning lines 30 is normally driven.
S50, when the row scanning line 30 is not normally driven, the driving unit connected to the portion of the row scanning line 30 which is not normally driven is marked as an error.
In order to facilitate maintenance, in this embodiment, the driving state of each line 30 is further obtained at regular time, for example, the driving state of each line 30 is obtained every 1 millisecond, and when the scanning line is not normally driven, the first driving unit or the second driving unit corresponding to the line 30 is marked as an error, and then a user can obtain the fault information of the driving circuit through a data interface or the like, so as to quickly remove the fault.
As shown in fig. 2, it should be understood that a problem may arise with a certain first drive unit, and also with a certain second drive unit. In this embodiment, for example, when a failure occurs in a second driving unit, the second driving unit cannot normally drive the row scan line 30 connected thereto due to the failure, so that the display panel 100 cannot normally display, and generally, a horizontal line which cannot normally display a picture appears on the display panel 100. In this embodiment, taking as an example that the second driving unit corresponding to the uppermost row scanning line 30 has failed, when the row scanning line 30 which is not normally driven is detected, the second driving unit connected to the half of the row scanning line 30 which is not normally driven, is marked as an error.
As shown in fig. 5, optionally, in some embodiments, the method further includes:
and S60, when the existence of the driving unit marked as the error is detected, connecting the two scanning areas 32 of the row scanning line 30 which is not normally driven with the interruption area 31 of the row scanning line 30.
As shown in fig. 2, according to the technical solution of this embodiment, when the second driving unit marked as an error is detected, two portions of the row of scanning lines 30, which are originally disconnected in the interruption region 31, are connected. After the two ends of the row of scan lines 30 are connected, the original interrupt region 31 does not exist, so that the driving signal from one side driving unit can normally drive the whole row of scan lines 30, and therefore the first driving unit corresponding to the second driving unit marked as the error can normally drive the whole row of scan lines 30.
Optionally, the step S60 includes:
and S61, welding the parts of the row scanning lines 30 which are not normally driven and are positioned at the two sides of the interrupt area 31 in the interrupt area 31.
In order to reduce the cost and simplify the processing, in some embodiments, the row scan line 30 which is not normally driven is directly welded at the interruption region 31 by welding, and it should be understood that, since the width of the interruption region 31 is very small, generally smaller than one pixel, two portions of the row scan line 30 on both sides of the interruption region 31 are easily conducted by welding.
As shown in fig. 6, optionally, the method further includes:
and S70, disconnecting the driving unit marked as the error.
It should be understood that step S70 may be executed before step S60, or may also be executed after step S60, and in this embodiment, the second driving unit failed in the step executed after step S60 may have a bad influence on the scanning line 30, so that the whole scanning line 30 cannot be normally driven, and therefore, in order to eliminate the possible influence on the scanning line 30 caused by the failed second driving unit, in this embodiment, the second driving unit is further directly disconnected from the circuit, for example, the power supply is disconnected or the internal circuit is damaged.
Optionally, the step S70 includes:
s71, the connection between the driving unit and the row scanning line 30 which is not normally driven is cut off by the laser.
As shown in fig. 2, in some embodiments, in order to prevent the first driving unit having an error from interfering with the row scan line 30, the laser is used to cut off the connection between the first driving unit and the row scan line 30, so as to short-circuit the first driving unit and the row scan line 30, thereby preventing the first driving unit from interfering with the row scan line 30.
The display device may be a liquid crystal display, an OLED display, or other display device. The specific application can be a computer display, a television display or a mobile phone display screen and the like. Since the present embodiment employs all technical solutions of the above embodiments, at least all technical effects of the above embodiments are achieved, and details are not repeated here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A display panel driving method comprises a display substrate, a driving circuit and a plurality of row scanning lines, wherein the driving circuit is arranged on two sides of the display substrate and comprises at least one driving unit; the plurality of line scanning lines are arranged on the display substrate in parallel, each line scanning line comprises an interruption area and two scanning areas arranged on two sides of the interruption area, and the scanning areas are connected with the driving circuit; characterized in that the method comprises the steps of:
acquiring a driving instruction;
controlling the driving units connected to the two ends of each row of scanning lines to send driving signals to drive the scanning areas of the row of scanning lines according to the driving instructions;
regularly acquiring the driving state of each line scanning area;
judging whether each row of scanning lines is normally driven or not;
when the row scanning line is not normally driven, marking the driving unit which is not connected with the normally driven part of the row scanning line as an error;
the display panel driving method further includes:
when the existence of the driving unit marked as an error is detected, two scanning areas of the row scanning line which is not normally driven are connected in the interruption area of the row scanning line.
2. The display panel driving method according to claim 1, wherein connecting two scanning areas of a row scanning line that is not normally driven in an interruption area of the row scanning line is specifically:
and welding the scanning areas of the row scanning lines which are not normally driven and are positioned at the two sides of the interruption area in the interruption area.
3. The display panel driving method according to claim 1 or 2, further comprising:
the drive unit marked as erroneous is switched off.
4. The display panel driving method of claim 3, wherein the turning off the driving unit marked as an error comprises:
the connection between the driving unit marked as an error and the row scanning line is cut off with laser light.
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| CN201710846584.8A CN107507593B (en) | 2017-09-15 | 2017-09-15 | Display panel, driving method thereof and display device |
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| CN201710846584.8A CN107507593B (en) | 2017-09-15 | 2017-09-15 | Display panel, driving method thereof and display device |
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| CN107507593A CN107507593A (en) | 2017-12-22 |
| CN107507593B true CN107507593B (en) | 2023-03-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109192159A (en) * | 2018-09-27 | 2019-01-11 | 惠科股份有限公司 | Display control unit, display, self-test interrupt method and device |
| US10832607B2 (en) | 2018-09-27 | 2020-11-10 | HKC Corporation Limited | Display control device, display, and self-test interrupt method |
| CN110060648A (en) * | 2019-05-17 | 2019-07-26 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display and drive integrated circult |
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| CN107507593A (en) | 2017-12-22 |
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