CN108766377B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN108766377B CN108766377B CN201810495182.2A CN201810495182A CN108766377B CN 108766377 B CN108766377 B CN 108766377B CN 201810495182 A CN201810495182 A CN 201810495182A CN 108766377 B CN108766377 B CN 108766377B
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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
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
The invention discloses a display panel and a display device, comprising: the grid lines are arranged in parallel, and at least one switch unit is arranged on at least one grid line; each switch unit is connected with two parts on the corresponding grid line and used for controlling the two connected parts to be switched on or switched off. According to the technical scheme, the switch unit is arranged on the grid line, the grid line can be divided into at least two parts by the switch unit, and the working states of the pixel units corresponding to the parts can be independently controlled aiming at the at least two parts, so that the function diversification of the display panel can be realized.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
In the modern times of the technology development, display panels have been widely used in electronic display products, such as televisions, computers, mobile phones, and personal digital assistants.
The display panel includes a Source Driver (Source Driver), a Gate Driver (Gate Driver), a display panel, and the like. The display screen is provided with a pixel array formed by a plurality of pixel units, a grid driver is used for outputting driving signals to grid lines of all rows so as to sequentially start the pixel units of all rows in the pixel array, a source driver is used for outputting data voltages to data lines of all rows, and the data voltages are written into the pixel units in a starting state through the data lines so as to display a picture.
However, when the conventional display screen displays a picture, the display screen needs to display the picture as a whole, that is, each area in the display screen cannot be controlled independently to display the picture separately, and the function is relatively single.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides a display panel and a display device.
To achieve the above object, the present invention provides a display panel including: the grid lines are arranged in parallel, and at least one switch unit is arranged on at least one grid line;
each switch unit is connected with two parts on the corresponding grid line and used for controlling the two connected parts to be switched on or switched off.
Optionally, the display panel further comprises: a gate driver;
the gate driver is connected to each of the gate lines, and configured to output a driving signal to each of the gate lines to drive each of the gate lines.
Optionally, the gate driver includes: a first gate driving unit and a second gate driving unit;
the first gate driving unit is connected with the first end of each gate line and used for outputting a driving signal to the first end of each gate line;
the second gate driving unit is connected to the second end of each gate line, and configured to output a driving signal to the second end of each gate line.
Optionally, each gate line is provided with a switching unit, and the switching unit divides the corresponding gate line into a first part and a second part.
Optionally, for each gate line, the number of pixel units corresponding to the first part of the gate line is equal to the number of pixel units corresponding to the second part of the gate line;
or, for each gate line, the number of pixel units corresponding to the first part of the gate line is not equal to the number of pixel units corresponding to the second part of the gate line, the number of pixel units corresponding to the first part of all the gate lines is equal, and the number of pixel units corresponding to the second part of all the gate lines is equal.
Optionally, two switching units are disposed on each gate line, and the two switching units divide the corresponding gate line into a first portion, a second portion, and a third portion.
Optionally, the method further comprises: the source driver and a plurality of data lines are arranged in parallel;
the data line and the grid line are arranged in a crossing way;
the source driver is connected to each of the data lines, and is configured to supply a data voltage to each of the data lines.
Optionally, the switching unit comprises: a first transistor;
a control electrode of the first transistor is connected with the source driver through a control signal routing, a first electrode of the first transistor is connected with one of the two parts in the grid line corresponding to the switch unit, and a second electrode of the first transistor is connected with the other of the two parts in the grid line corresponding to the switch unit;
the source driver is further used for providing a control signal to the control signal routing.
Optionally, the switch unit has a first connection end and a second connection end;
the first connection end is connected with one of the two parts in the grid line corresponding to the switch unit, and the second connection end is connected with the other one of the two parts in the grid line corresponding to the first transistor;
the switching unit includes: a first transistor, a second transistor, a third transistor, a fourth transistor, a first inverter, and a second inverter;
a control electrode of the first transistor is connected with the source driver through a first control signal line, a first electrode of the first transistor is connected with the first connecting end, and a second electrode of the first transistor is connected with a first electrode of the second transistor;
a control electrode of the second transistor is connected with the source driver through a second control signal line, and a second electrode of the second transistor is connected with the second connecting end;
the input end of the first inverter is connected with the first control signal line, and the output end of the first inverter is connected with the control electrode of the fourth transistor;
an input end of the second inverter is connected with the second control signal line, and an output end of the second inverter is connected with a control electrode of the third transistor;
a first pole of the third transistor is connected with the first connection end, and a second pole of the third transistor is connected with a first pole of the fourth transistor;
a second pole of the fourth transistor is connected to the second connection.
In order to achieve the above object, the present invention also provides a display device including: the display panel adopts the display panel.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a switch unit according to the present invention;
FIG. 3 is a schematic view of another structure of the switch unit of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display panel according to a fourth embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, a display panel and a display device provided by the present invention are described in detail below with reference to the accompanying drawings.
In the present invention, the Display panel may be a Liquid Crystal Display (LCD) panel or an Organic Light-Emitting Diode (OLED) Display panel.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, as shown in fig. 1, the display panel includes: at least one switch unit 1 is arranged on at least one Gate line Gate1/Gate2 … … Gate 1080; each switch unit 1 is connected to two portions of the corresponding Gate line Gate1/Gate2 … … Gate1080, and is used for controlling the two connected portions to be turned on or off.
In the invention, by arranging a plurality of switch units 1 on the Gate lines Gate1/Gate2 … … Gate1080, the switch units 1 can divide the Gate lines Gate1/Gate2 … … Gate1080 into at least two parts, and the working states of the pixel units corresponding to the parts can be independently controlled for the at least two parts, thereby realizing the function diversification of the display panel.
In the present invention, the display panel further includes: the source driver 3 and a plurality of Data lines Data1/Data2 … … Data1920 arranged in parallel, the Data lines Data1/Data2 … … Data1920 and the Gate lines Gate1/Gate2 … … Gate1080 are arranged in a crossing way to define a plurality of pixel units, and all the pixel units form a pixel array; the source driver 3 is connected to each Data line Data1/Data2 … … Data1920, and supplies a Data voltage to each Data line Data1/Data2 … … Data 1920.
Fig. 2 is a schematic structural diagram of the switch unit of the present invention, and as shown in fig. 2, the switch unit 1 has a first connection end N1 and a second connection end N2, the first connection end N1 is connected to one of two portions in the gate line corresponding to the switch unit 1, and the second connection end N2 is connected to the other of the two portions in the gate line corresponding to the switch unit 1.
The switch unit 1 includes: a first transistor T1; a control electrode of the first transistor T1 is connected to the source driver 3 through a control signal trace ConL, a first electrode of the first transistor T1 is connected to the first connection end N1 of the switch unit 1, and a second electrode of the first transistor T1 is connected to the second connection end N2 of the switch unit 1; the source driver 3 is also configured to provide a control signal to the control signal trace ConL.
The transistors in the present invention may be independently selected from one of a polysilicon thin film transistor, an amorphous silicon thin film transistor, an oxide thin film transistor, and an organic thin film transistor. The "control electrode" specifically refers to a gate electrode of the transistor, the "first electrode" specifically refers to a source electrode of the transistor, and the "second electrode" specifically refers to a drain electrode of the transistor. Of course, those skilled in the art will appreciate that the "first pole" and the "second pole" are interchangeable, i.e., the "first pole" specifically refers to the drain of the transistor and the "second pole" specifically refers to the source of the transistor.
Taking the first transistor T1 as an N-type transistor as an example; when the control signal is at a high level, the first transistor T1 is turned on, the first connection terminal N1 and the second connection terminal N2 are turned on, and the switch unit 1 is in a closed state; when the control signal is at a low level, the first transistor T1 is turned off, the first connection terminal N1 and the second connection terminal N2 are disconnected, and the switch unit 1 is in an open state.
It should be noted that the first transistor T1 may also be a P-type transistor, and at this time, when the control signal is at a high level, the first connection terminal N1 and the second connection terminal N2 are disconnected, and the switch unit 1 is in an open circuit state; when the control signal is at a low level, the first connection terminal N1 and the second connection terminal N2 are turned on, and the switch unit 1 is in a closed state.
In a general application scenario, it is required that the switch unit 1 always keeps a closed state, and the first transistor T1 always keeps a conducting state, and the long-term bias of the first transistor T1 may damage the switching characteristic of the first transistor T1.
In order to solve the technical problem, the invention also provides a switch unit. Fig. 3 is a schematic view of another structure of the switch unit of the present invention, and as shown in fig. 3, the switch unit 1 includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a first inverter IA1, and a second inverter IA 2; a control electrode of the first transistor T1 is connected to the source driver 3 through a first control signal line ConL1, a first electrode of the first transistor T1 is connected to the first connection terminal N1, and a second electrode of the first transistor T1 is connected to a first electrode of the second transistor T2; a control electrode of the second transistor T2 is connected to the source driver 3 through a second control signal line ConL2, and a second electrode of the second transistor T2 is connected to a second connection terminal N2; an input terminal of the first inverter IA1 is connected to the first control signal line ConL1, and an output terminal of the first inverter IA1 is connected to a control electrode of the fourth transistor T4; an input terminal of the second inverter IA2 is connected to the second control signal line ConL2, and an output terminal of the second inverter IA2 is connected to a control electrode of the third transistor T3; a first pole of the third transistor T3 is connected to the first connection terminal N1, and a second pole of the third transistor T3 is connected to a first pole of the fourth transistor T4; the second pole of the fourth transistor T4 is connected to the second connection N2.
For example, the first transistor T1, the second transistor T2, the third transistor T3, and the fourth transistor T4 are all N-type transistors. The control signal input to the switching unit 1 is composed of four cases:
the first situation is as follows: when the first control signal in the first control signal line ConL1 and the second control signal in the second control signal line ConL2 are both at a high level, the first transistor T1 and the second transistor T2 are turned on, the third transistor T3 and the fourth transistor T4 are turned off, and at this time, the first connection terminal N1 and the second connection terminal N2 are turned on, and the switch unit 1 is in a closed state.
Case two: when the first control signal and the second control signal are both at a low level, the third transistor T3 and the fourth transistor T4 are turned on, the first transistor T1 and the second transistor T2 are turned off, the first connection terminal N1 and the second connection terminal N2 are turned on, and the switch unit 1 is in a closed state.
Case three: when the first control signal is at a high level and the second control signal is at a low level, the first transistor T1 and the third transistor T3 are turned on, the second transistor T2 and the fourth transistor T4 are turned off, the first connection terminal N1 and the second connection terminal N2 are disconnected, and the switch unit 1 is in an open state.
Case four: when the first control signal is at a low level and the second control signal is at a high level, the second transistor T2 and the fourth transistor T4 are turned on, the first transistor T1 and the third transistor T3 are turned off, the first connection terminal N1 and the second connection terminal N2 are turned off, and the switch unit 1 is in an open state.
It follows that the switching unit 1 can be controlled to be closed or opened by the first control signal and the second control signal. When the switch unit 1 is required to be in a closed state for a long time, the control signals in the first situation and the second situation can be alternately adopted to control the switch unit 1; when the switch unit is required to be in an open state for a long time, the control signals in the above-mentioned "case three" and "case four" can be alternately adopted to control the switch unit. The technical scheme of the invention can effectively avoid the problems of long-term bias and switch characteristic damage of the transistor in the switch unit 1.
It should be noted that the above-mentioned cases of the switch unit 1 shown in fig. 2 and fig. 3 are preferred embodiments of the present invention, where the switch unit 1 shown in fig. 2 has a simple structure and is easy to implement, and the switch unit 1 shown in fig. 3 can effectively avoid the transistor switch characteristic from being damaged, and neither case will limit the technical solution of the present invention. It should be understood by those skilled in the art that the switch unit 1 of the present invention may have other structures, which are not illustrated herein.
The principle of the display panel independent display in divided areas provided by the present invention will be described in detail with reference to examples. In this embodiment, a description will be given taking an example in which the resolution of the display panel is 1920 × 1080.
Referring to fig. 1, the display panel further includes: a gate driver 2; the Gate driver 2 is connected to each Gate line Gate1/Gate2 … … Gate1080, and is configured to output a driving signal to each Gate line Gate1/Gate2 … … Gate1080 to drive each Gate line Gate1/Gate2 … … Gate 1080. It should be noted that the Gate Driver 2 in the present invention may be a Gate Driver chip bonded to the display panel, or may be a Gate Driver on Array (GOA) circuit directly formed on the Array substrate based on the Array substrate process.
Optionally, each Gate line Gate1/Gate2 … … Gate1080 is provided with a switch unit 1, and the switch unit 1 divides the corresponding Gate line Gate1/Gate2 … … Gate1080 into a first part and a second part; for each Gate line Gate1/Gate2 … … Gate1080, the number of pixel cells corresponding to the first portion of the Gate line is equal to the number of pixel cells corresponding to the second portion of the Gate line. That is, the switching unit 1 is located between the Data line Data960 and the Data line Data 961.
For convenience of description, the left half of each Gate line Gate1/Gate2 … … Gate1080 in fig. 1 is referred to as a first part, and the right half is referred to as a second part. The Gate driver 2 is connected to the left end of each Gate line Gate1/Gate2 … … Gate 1080.
Taking the Gate line in the 1 st row as an example, the first portion of the Gate line Gate1 corresponds to the pixel cells in the 1 st row and in the 1 st to 960 th columns in the pixel array, and the second portion of the Gate line Gate1 corresponds to the pixel cells in the 1 st row and in the 961 st to 1920 th columns in the pixel array substrate.
In this embodiment, each switch unit 1 in fig. 1 is optionally connected to the source driver 3 through the same control signal line (if the switch unit shown in fig. 3 is adopted, the number of the control signal lines is two), so as to implement simultaneous closing or opening. At this time, by providing the switch unit 1, the display panel can be divided into left and right display regions 4 and 5 having the same area, the resolution of the left display region 4 is 960 × 1080 and the resolution of the right display region 5 is 960 × 1080.
When displaying the picture, the on-off of the first part and the second part on each grid line Gate1/Gate2 … … Gate1080 can be controlled by the switch unit 1 according to the actual requirement.
For example, when each area of the to-be-displayed picture is bright, when the switch unit 1 can be turned on, the first portion and the second portion of each Gate line Gate1/Gate2 … … Gate1080 are turned on, and the left display area 4 and the right display area 5 are both displayed; when the right part of the frame to be displayed is a black frame, the switch unit 1 can be in an open state, the first part and the second part of each Gate line Gate1/Gate2 … … Gate1080 are disconnected, and the driving signal cannot be written into the second part of the Gate line, so that the right display area 5 in the display panel does not display, and the power consumption of the display panel is reduced.
Fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present invention, and as shown in fig. 4, different from that shown in fig. 1, the gate driver 2 in this embodiment includes: a first gate driving unit 201 and a second gate driving unit 202; the first Gate driving unit 201 is connected to the first end of each Gate line Gate1/Gate2 … … Gate1080, and is configured to output a driving signal to the first end of each Gate line Gate1/Gate2 … … Gate 1080; the second Gate driving unit 202 is connected to the second end of each Gate line Gate1/Gate2 … … Gate1080, and is configured to output a driving signal to the second end of each Gate line Gate1/Gate2 … … Gate 1080.
In fig. 4, the "first end" of the gate line specifically refers to the left end of the gate line, the "second end" of the gate line refers to the right end of the gate line, the first gate driving unit is located on the left side of the gate line, and the second gate driving unit is located on the right side of the gate line.
At this time, the display states of the left display region 4 and the right display region 5 of the display panel may be controlled by the first gate driving unit 201 and the second gate driving unit 202, respectively.
When the frequencies of the driving signals output by the first Gate driving unit 201 and the second Gate driving unit 202 are the same, the switching unit 1 can be in a closed state, the first part and the second part of each Gate line Gate1/Gate2 … … Gate1080 are turned on, the first Gate driving unit 201 and the second Gate driving unit 202 simultaneously and sequentially output the same driving signal, and at this time, the driving signals are simultaneously loaded at two ends of the Gate lines Gate1/Gate2 … … Gate1080, so that the charging speed can be effectively increased, and the problem of the opening Delay of the transistor connected with the Gate lines Gate1/Gate2 … … Gate1080 in the pixel unit due to the resistance-capacitance Delay (RC Delay) is avoided to a great extent.
When the frequencies of the driving signals output by the first Gate driving unit 201 and the second Gate driving unit 202 are different, the switching unit 1 can be in an open state, the first portion and the second portion of each Gate line Gate1/Gate2 … … Gate1080 are both turned off, and the driving signals can be output by the first Gate driving unit 201 and the second Gate driving unit 202 with different frequencies. As a specific application scenario, when the left half of the picture to be displayed is a dynamic picture and the right half of the picture to be displayed is a static picture, the first gate driving unit 201 may output the driving signal at the normal scanning frequency, and the frequency of the driving signal output by the second gate driving unit 202 is less than the frequency of the driving signal output by the first gate driving unit 201, and at this time, the power consumption is reduced because the frequency output by the second gate driving unit 202 is reduced. As another specific application scenario, when the left half of the to-be-displayed picture is a black picture, the first gate driving unit 201 may be enabled not to output the driving signal, and the second gate driving unit 202 may normally output the driving signal. For other applicable scenarios, they are not illustrated here.
In practical application, each switch unit 1 can be controlled to be in an open-circuit state or a closed state according to actual needs; when the switch unit 1 is in the open state, the frequencies of the output driving signals of the first gate driving unit 201 and the second gate driving unit 202 can be controlled according to the characteristics of the image to be displayed.
Fig. 5 is a schematic structural diagram of a display panel according to a third embodiment of the present invention, as shown in fig. 5, different from fig. 4, in this embodiment, for each Gate line Gate1/Gate2 … … Gate1920, the number of pixel units corresponding to the first portion of the Gate line is not equal to the number of pixel units corresponding to the second portion of the Gate line, the number of pixel units corresponding to the first portion of all Gate lines Gate1/Gate2 … … Gate1920 is equal, and the number of pixel units corresponding to the second portion of all Gate lines Gate1/Gate2 … … Gate1920 is equal.
As a specific application scenario, for a side curved screen appearing in the mobile phone market, the switch unit 1 may be disposed at a junction between the flat display area 6 and the side curved display area 7 of the display panel, so that the flat display area 6 and the side curved display area 7 may be separately controlled.
The following description will be made by taking a case where the resolution of the display panel in the mobile phone is 1080 × 1920 as an example. As an alternative, the area corresponding to the pixel units in the 1 st to 1000 th columns in the pixel array is used as the flat display area 6, and the area corresponding to the pixel units in the 1001 st to 1080 th columns is used as the side curved display area 7, so that the resolution of the flat display area 6 is 1000 × 1920, and the resolution of the side curved display area 7 is 80 × 1920. That is, each switch unit 1 is located between the Data line Data1000 and the Data line Data 1001.
In practical applications, the side curved display region 7 is often only used for displaying information (static pictures) such as notifications and time, so that the frequency of the output driving signal of the second gate driving unit 202 can be reduced (the refresh frequency of the pictures displayed in the side curved display region is reduced), thereby reducing power consumption. As an application scenario, when a user checks whether there is a notification or checks the current time, the user can only control the switch unit 1 to be in the open state, and the first gate driving unit 201 does not work, and the second gate driving unit 202 works, at this time, the flat display area 6 does not display, and the side curved display area 7 displays, so that power consumption can be effectively reduced. In addition, in the application scenario, the requirement for the display image quality of the curved-side display region 7 is not high, so that the gray scale reduction processing can be performed by the source driver 3 to further reduce the power consumption.
For other applicable scenarios of the display panel provided in the present embodiment, no one-by-one illustration is given here.
In the above embodiments, each switch unit 1 may be connected to the source driver 3 through a different control signal line, so that each switch unit 1 in the display panel can be controlled individually to be in a closed state or an open state.
Fig. 6 is a schematic structural diagram of a display panel according to a fourth embodiment of the present invention, and as shown in fig. 6, different from the foregoing embodiments, in this embodiment, two switch units 1 are respectively disposed on each Gate line Gate1/Gate2 … … Gate1080, and the two switch units 1 divide the corresponding Gate line Gate1/Gate2 … … Gate1080 into a first portion, a second portion, and a third portion.
In this case, the entire display panel may be divided into three separate display regions 8, 9, 10. If the display area 9 located in the middle is required to display, at least one of the display areas 8 and 10 located on both sides is also required to display.
The description will be made taking an example in which the resolution of the display panel is 1920 × 1080. As an alternative, the switching unit 1 connecting the first and second portions of the gate line is located between the Data line Data640 and the Data line Data641, and the switching unit 1 connecting the second and third portions of the gate line is located between the Data line Data1280 and the Data line Data 1281. In this case, the resolutions of the three display regions 8, 9, and 10 are 640 × 1080.
Of course, the positions of the switch unit 1 on the corresponding Gate lines Gate1/Gate2 … … Gate1080 in the present invention may also adopt other schemes, which are not illustrated herein.
In practical applications, each switch unit 1 can be controlled to be in a closed state or an open state according to actual needs. The applicable scenarios of the display panel shown in fig. 6 are not illustrated here.
Alternatively, each of the switch units 1 in fig. 6, which connects the first portion and the second portion in the Gate lines Gate1/Gate2 … … Gate1080, is connected to the source driver 3 through the same control signal line (if the switch unit shown in fig. 3 is used, the number of the control signal lines is two), so as to implement simultaneous closing or opening; in fig. 6, each switch unit 1 connecting the second and third portions in the Gate lines Gate1/Gate2 … … Gate1080 is connected to the source driver through another same control signal line (if the switch unit shown in fig. 3 is used, the number of the control signal lines is two), so as to implement simultaneous closing or opening.
It is preferable that the switch units shown in fig. 2 and 3 be used as the switch units in the second to fourth embodiments.
In the display panels provided in the first to fourth embodiments, each switch unit 1 may be connected to the source driver 3 through the same or different control signal lines, or some switch units 1 may be connected to the source driver 3 through the same control signal lines, which all fall within the protection scope of the present invention. The control signal lines for connecting the switching unit 1 and the source driver 3 are not shown in fig. 1, 4, 5, and 6.
It should be understood by those skilled in the art that the operating states of some pixel units in the display panel can be individually controlled by arranging at least one switch unit 1 on at least one gate line, and the invention is within the protection scope of the present invention.
In addition, the specific structure of the gate driver 2 is not limited in the present invention, and the gate driver 2 may include one, two or more gate driving units.
Embodiments one to four of the present invention provide a display panel, respectively, in which a switch unit is disposed on a gate line, the switch unit can divide the gate line into at least two portions, and for the at least two portions, the operating states of pixel units corresponding to the portions can be controlled individually, so that the function diversification of the display panel can be achieved.
A fifth embodiment of the present invention provides a display device, which includes a display panel, where the display panel is any one of the display panels in the first to fourth embodiments, and specific descriptions can refer to the contents in the first to fourth embodiments, which are not repeated herein.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (7)
1. A display panel, comprising: the grid lines are arranged in parallel, and at least one switch unit is arranged on at least one grid line;
each switch unit is connected with two parts on the corresponding grid line and used for controlling the two connected parts to be switched on or switched off;
further comprising: the source driver and a plurality of data lines are arranged in parallel;
the data line and the grid line are arranged in a crossing way;
the source driver is connected with each data line and used for providing data voltage for each data line;
the switch unit is provided with a first connecting end and a second connecting end;
the first connecting end is connected with one of the two parts in the grid line corresponding to the switch unit, and the second connecting end is connected with the other one of the two parts in the grid line corresponding to the switch unit;
the switching unit includes: a first transistor, a second transistor, a third transistor, a fourth transistor, a first inverter, and a second inverter;
a control electrode of the first transistor is connected with the source driver through a first control signal line, a first electrode of the first transistor is connected with the first connecting end, and a second electrode of the first transistor is connected with a first electrode of the second transistor;
a control electrode of the second transistor is connected with the source driver through a second control signal line, and a second electrode of the second transistor is connected with the second connecting end;
the input end of the first inverter is connected with the first control signal line, and the output end of the first inverter is connected with the control electrode of the fourth transistor;
an input end of the second inverter is connected with the second control signal line, and an output end of the second inverter is connected with a control electrode of the third transistor;
a first pole of the third transistor is connected with the first connection end, and a second pole of the third transistor is connected with a first pole of the fourth transistor;
a second pole of the fourth transistor is connected to the second connection.
2. The display panel according to claim 1, characterized in that the display panel further comprises: a gate driver;
the gate driver is connected to each of the gate lines, and configured to output a driving signal to each of the gate lines to drive each of the gate lines.
3. The display panel according to claim 2, wherein the gate driver comprises: a first gate driving unit and a second gate driving unit;
the first gate driving unit is connected with the first end of each gate line and used for outputting a driving signal to the first end of each gate line;
the second gate driving unit is connected to the second end of each gate line, and configured to output a driving signal to the second end of each gate line.
4. The display panel according to any one of claims 1 to 3, wherein one of the switching units is provided on each of the gate lines, and the switching unit divides the corresponding gate line into a first portion and a second portion.
5. The display panel of claim 4, wherein for each gate line, the number of pixel cells corresponding to the first portion of the gate line is equal to the number of pixel cells corresponding to the second portion of the gate line;
or, for each gate line, the number of pixel units corresponding to the first part of the gate line is not equal to the number of pixel units corresponding to the second part of the gate line, the number of pixel units corresponding to the first part of all the gate lines is equal, and the number of pixel units corresponding to the second part of all the gate lines is equal.
6. The display panel according to any one of claims 1 to 3, wherein two of the switching units are provided on each of the gate lines, and the two switching units divide the corresponding gate line into a first portion, a second portion, and a third portion.
7. A display device, comprising: a display panel as claimed in any one of claims 1-6.
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| CN201810495182.2A CN108766377B (en) | 2018-05-22 | 2018-05-22 | Display panel and display device |
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| CN201810495182.2A CN108766377B (en) | 2018-05-22 | 2018-05-22 | Display panel and display device |
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| CN109637477B (en) * | 2019-01-09 | 2021-01-08 | 惠科股份有限公司 | Display panel and display device |
| CN109859674A (en) * | 2019-04-22 | 2019-06-07 | 京东方科技集团股份有限公司 | Array substrate, its driving method, display panel and display device |
| CN114267295A (en) * | 2020-09-16 | 2022-04-01 | Oppo（重庆）智能科技有限公司 | Display driving method, display driving device, electronic device and readable storage medium |
| CN113129832B (en) * | 2021-04-20 | 2022-08-23 | 京东方科技集团股份有限公司 | Gamma adjustment method |
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| CN101452165A (en) * | 2007-12-07 | 2009-06-10 | 北京京东方光电科技有限公司 | LCD panel |
| CN105446402B (en) * | 2014-08-04 | 2017-03-15 | 北京大学深圳研究生院 | Controllable voltage source, shift register and its unit and a kind of display |
| CN104318890A (en) * | 2014-11-18 | 2015-01-28 | 合肥鑫晟光电科技有限公司 | Array substrate, driving method thereof and display device |
| KR102371821B1 (en) * | 2015-09-08 | 2022-03-08 | 주식회사 엘엑스세미콘 | Circuit for driving panel and circuit for driving gate line |
| CN105405424B (en) * | 2015-12-16 | 2018-12-28 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method, driving circuit, display device |
| CN106023923A (en) * | 2016-07-13 | 2016-10-12 | 深圳市华星光电技术有限公司 | GOA (Gate Driver On Array) circuit for controllable switching display between single screen and double screens and driving method thereof |
| CN106297717A (en) * | 2016-10-08 | 2017-01-04 | 武汉华星光电技术有限公司 | Mobile terminal and the LCDs of multihead display thereof |
| CN107025877B (en) * | 2017-03-16 | 2023-05-16 | 上海创功通讯技术有限公司 | Display equipment and split screen display method thereof |
| CN106920530A (en) * | 2017-05-11 | 2017-07-04 | 惠科股份有限公司 | A kind of drive circuit, the driving method of drive circuit and display device |
| CN107134464A (en) * | 2017-07-03 | 2017-09-05 | 京东方科技集团股份有限公司 | A kind of array base palte, its driving method and display device |
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