CN113096574B - Display panel, display panel driving method and display device - Google Patents
Display panel, display panel driving method and display device Download PDFInfo
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- CN113096574B CN113096574B CN202110337880.1A CN202110337880A CN113096574B CN 113096574 B CN113096574 B CN 113096574B CN 202110337880 A CN202110337880 A CN 202110337880A CN 113096574 B CN113096574 B CN 113096574B
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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
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The embodiment of the invention provides a display panel, a display panel driving method and a display device, relates to the technical field of display, and can effectively solve the problem of uneven display brightness in a display area of the display panel. On one hand, in the embodiment of the invention, the first display information and the first gamma adjustment standard corresponding to the main display area are acquired through the first drive IC; the second drive IC acquires second display information corresponding to the first auxiliary display area and a second gamma adjustment standard; the first driving IC configures a first driving voltage for the main display area through a first data line according to first display information and a first gamma adjustment standard; and the second driving IC is used for configuring a second driving voltage for the first auxiliary display area through the second data line according to the second display information and a second gamma adjusting standard.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel, a display panel driving method and a display device.
[ background of the invention ]
With the development of display technology and the increasing requirements of users on the display effect of the display device, the display panel in the display device is also developed into a diversified special-shaped display area from a traditional rectangular display area. In order to make full use of the display panel, the special-shaped display area is divided into a main display area and an auxiliary display area, and the driving IC transmits power through the data lines and the scanning lines in the display panel to drive the main display area and the auxiliary display area to realize display. However, when the driving IC transmits power to the auxiliary display region of the main display region through the data line, due to the influence of the impedance of the data line, when the display region displays the same gray scale, the power obtained at each position of the main display region and the auxiliary display region in the display region is different, which causes the display panel to have a problem of uneven display brightness.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display panel driving method, which can effectively alleviate the problem of uneven display brightness in the display area of the display panel.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes a first driving IC, a first region, a second region, and a second driving IC arranged along a first direction;
the first region is composed of a partial display region, the partial display region constituting the first region including a main display region including first data lines extending in the first direction;
the second area is composed of a partial display area and a partial non-display area, the second area is provided with an opening, the partial non-display area is located in the opening area, the partial display area composing the second area comprises a first auxiliary display area, and the first auxiliary display area comprises a second data line extending along the first direction;
the first data line is connected to the first driving IC, and the second data line is connected to the second driving IC.
Optionally, the partial display area constituting the second area further includes a second auxiliary display area; the opening region is located between the first auxiliary display region and the second auxiliary display region; the second auxiliary display area includes a third data line extending in a first direction;
the third data line is connected to the second driving IC.
Optionally, the partial display area constituting the second area further includes a second auxiliary display area, and the opening area is located between the first auxiliary display area and the second auxiliary display area; the second auxiliary display area includes a third data line extending in a first direction;
the display panel further comprises a third driving IC, the third driving IC is arranged on one side, away from the first area, of the second area, and the third data line is connected to the third driving IC.
Optionally, the display panel further comprises:
signal lines including a first scanning control signal line, a second scanning control signal line, and a third scanning control signal line;
at least one first scan driving circuit connected to the first driving IC through the first scan control signal line;
at least one second scan driving circuit connected to the second driving IC through the second scan control signal line;
at least one third scan driving circuit connected to the second driving IC through the third scan control signal line;
wherein the signal line is at a different layer than the first data line, the second data line, and the third data line.
Optionally, the display panel further comprises:
signal lines including a first scan control signal line, a second scan control signal line, and a third scan control signal line;
at least one first scan driving circuit connected to the first driving IC through the first scan control signal line;
at least one second scan driving circuit connected to the second driving IC through the second scan control signal line;
at least one third scan driving circuit connected to the third driving IC through the third scan control signal line;
wherein the signal line is in a different layer from the first data line, the second data line, and the third data line.
In a second aspect, an embodiment of the present invention further provides a driving method for a display panel, which is applied to the display panel provided in the first aspect, and the method includes:
the first drive IC acquires first display information and a first gamma adjustment standard corresponding to the main display area;
the second drive IC acquires second display information and a second gamma adjustment standard corresponding to the first auxiliary display area;
the first driving IC configures a first driving voltage for the main display area through the first data line according to first display information and a first gamma adjustment standard;
and the second driving IC is used for configuring a second driving voltage for the first auxiliary display area through the second data line according to second display information and a second gamma adjusting standard.
Optionally, the start-stop time of the first driving IC configuring the first driving voltage for the main display area through the first data line is the same as the start-stop time of the second driving IC configuring the second driving voltage for the first auxiliary display area through the second data line.
Optionally, the partial display area of the second area further includes a second auxiliary display area, and the opening area is located between the first auxiliary display area and the second auxiliary display area; the second auxiliary display area comprises a third data line;
the method further comprises the following steps:
the second drive IC acquires third display information and a third gamma adjustment standard corresponding to the second auxiliary display area;
and the second drive IC configures a third drive voltage for the second auxiliary display area through the third data line according to the third display information and a third gamma adjustment standard.
Optionally, the partial display area of the second area further includes a second auxiliary display area, and the opening area is located between the first auxiliary display area and the second auxiliary display area; the second auxiliary display area comprises a third data line;
the display panel further comprises a third driving IC connected to the third data line;
the method further comprises the following steps:
the third drive IC acquires third display information and a third gamma adjustment standard corresponding to the second auxiliary display area;
and the third drive IC configures a third drive voltage for a second auxiliary display area through the third data line according to the third display information and a third gamma adjustment standard.
Optionally, the start-stop time of the first driving IC configuring the first driving voltage for the main display area through the first data line is the same as the start-stop time of the second driving IC configuring the second driving voltage for the first auxiliary display area through the second data line, and the start-stop time of the third driving IC configuring the third driving voltage for the second auxiliary display area through the second data line.
Optionally, before the first driver IC obtains the first display information corresponding to the main display area and the first gamma adjustment criterion, the method further includes:
the first drive IC receives a first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in a first designated position;
before the second driver IC obtains the second gamma adjustment grant, the method further includes:
and the second drive IC receives a second gamma adjustment standard and a third gamma adjustment standard sent by the upper computer, and respectively stores the second gamma adjustment standard and the third gamma adjustment standard in a second designated position and a third designated position.
Optionally, before the first driver IC obtains the first display information corresponding to the main display area and the first gamma adjustment criterion, the method further includes:
the first drive IC receives a first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in a first designated position;
before the second driver IC obtains the second gamma adjustment grant, the method further includes:
the second drive IC receives a second gamma adjusting standard sent by the upper computer and stores the second gamma adjusting standard at a second appointed position;
before the third driver IC obtains the third gamma adjustment grant, the method further includes:
and the third driving IC receives a third gamma adjusting standard sent by the upper computer and stores the third gamma adjusting standard in a third designated position.
In a third aspect. An embodiment of the present invention further provides a display device, where the display device includes any one of the display panels provided in the first aspect.
According to the technical scheme provided by the embodiment of the invention, different driving ICs and corresponding first data lines and second data lines are respectively arranged in the main display area and the auxiliary display area, and compared with a display panel which adopts one driving IC to transmit driving voltages for display to the main display area and the auxiliary display area through the data lines, the display panel adopts different driving ICs to control different display areas, so that the lengths of the data lines in the main display area are the same, and the lengths of the data lines in the auxiliary display area are the same, so that the problem of display brightness unevenness is relieved to a certain extent, the processing amount and the integration degree of the driving ICs can be effectively reduced, the problem of driving IC integration is solved, and the design and integration cost of the driving ICs is reduced. In addition, the driving ICs which drive different display areas respectively acquire the display information and the gamma adjustment standard corresponding to the display areas, each driving IC drives the corresponding display area according to the acquired display information and the gamma adjustment standard, and each driving IC compensates the loss of the different display areas caused by line impedance to different degrees through the corresponding gamma adjustment standard, so that when each driving chip outputs driving voltage for the display areas through data lines, the driving voltage finally acquired by the different areas and the gray scale value of a display picture have a uniform corresponding relation, and the problem of uneven display brightness of the main display area and the auxiliary display area of the display panel is further effectively solved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a top view of a prior art display panel;
fig. 2 is a top view of a display panel according to an embodiment of the invention;
FIG. 3 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention based on the display panel shown in FIG. 2;
FIG. 4 is a top view of another display panel provided in accordance with an embodiment of the present invention;
FIG. 5 is a top view of another display panel according to an embodiment of the present invention
FIG. 6 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention based on the display panel shown in FIG. 5;
FIG. 7 is a top view of another display panel according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention based on the display panel shown in FIG. 7;
FIG. 9 is a flowchart illustrating a method for driving a display panel provided based on the display panel shown in FIG. 5 according to an embodiment of the present invention;
FIG. 10 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention based on the display panel shown in FIG. 7;
FIG. 11 is a top view of another display panel provided in accordance with an embodiment of the present invention;
fig. 12 is an enlarged view of a region a of the display panel shown in fig. 11;
FIG. 13 is a cross-sectional view in the direction aa' of the enlarged view shown in FIG. 12;
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention.
[ detailed description ] A
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, 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 invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used to describe the driver ICs in the embodiments of the present invention, the driver ICs should not be limited to these terms. These terms are only used to distinguish the driver ICs from each other. For example, the first driver IC may also be referred to as the second driver IC, and similarly, the second driver IC may also be referred to as the first driver IC, without departing from the scope of the embodiments of the present invention.
For a display panel in which the display region includes the main display region and the auxiliary display third data line 33 region, as shown in fig. 1, the main display region 001 and the auxiliary display region 002 are sequentially disposed in the first direction, and the length of the main display region 001 in the second direction is larger than the length of the auxiliary display region 002 in the second direction, wherein the second direction is perpendicular to the first direction. In contrast, in the display panel in which the driver IC 000 is provided on the side of the main display region 001 away from the auxiliary display region 002 or the driver IC 000 is provided on the side of the auxiliary display region 002 away from the main display region 001, when the driver IC 000 transmits the driving voltage to the display region through the data line, the length of the main display region in the second direction is longer than the length of the auxiliary display region 002 in the second direction, so that two lengths Y1 and Y2 exist in the data line extending from the driver IC 000 to the display region, and the line impedances of the data lines of the two lengths are different, thereby causing uneven display luminance of the display panel.
To solve the problem, an embodiment of the invention provides a display panel, please refer to fig. 2, fig. 2 is a schematic structural diagram of the display panel according to the embodiment of the invention, the display panel includes a first driving IC01, a first region 1, a second region 2 and a second driving IC02 arranged along a first direction; the first region 1 is constituted by a partial display region, the partial display region constituting the first region 1 including a main display region 11, the main display region 11 including first data lines 31 extending in a first direction; the second area 2 is composed of a partial display area and a partial non-display area, the second area 2 has an opening, the partial non-display area is located in the opening area 22, the partial display area constituting the second area 2 includes a first auxiliary display area 21, the first auxiliary display area 21 includes a second data line 32 extending along the first direction; the first data line 31 is connected to a first driving IC, and the second data line 32 is connected to a second driving IC 02.
The opening may be a rectangular opening, a rounded rectangular opening, a U-shaped opening, or the like, and the shape of the opening is not particularly limited in the embodiment of the present invention.
The main display area 11 may be used to display conventional display information, and the display information displayed in the main display area 11 includes, for example, various application icons and application operation interfaces in the main interface of the mobile phone; the display area in the second area 2, i.e. the auxiliary display area in the display panel (the first auxiliary display area 21 and the second auxiliary display area 23 mentioned below) may be used for displaying information such as time, power and some notification messages. Specifically, the display information displayed in the second region 2 is generally smaller than the display information displayed in the main display region 11, so the area of the display region in the second region 2 is generally smaller than the area of the main display region 11.
Compared with the prior art in which the driving ICs are arranged on one side to drive the main display area 11 and the first auxiliary display area 21, the data line lengths of the main display area 11 are different and the line impedances are different, the first driving IC01 is respectively adopted to drive the main display area 11 through the first data line 31, and the second driving IC02 is adopted to drive the first auxiliary display area 21 through the second data line 32, so that the data line lengths in the main display area 11 are the same, and the problem of uneven display brightness of the main display area is solved. In addition, two driving ICs are adopted to drive the main display area 11 and the first auxiliary display area 21 respectively, the first driving IC01 only needs to integrate the driving processing module corresponding to the main display area 11, and the second driving IC02 only needs to integrate the driving processing module corresponding to the first auxiliary display area 21.
It should be added that, in order to make the first driver IC01 and the second driver IC02 in the display panel occupy no space of the display panel as much as possible, reduce the non-display area located outside the display area, and achieve the narrow edge of the display panel, a COF technology may be adopted, in which the first driver IC01 is disposed on the first flexible printed circuit board, the second driver IC02 is disposed on the second flexible printed circuit board, the first flexible printed circuit board is disposed in the lower step area corresponding to the side of the first area 1 away from the second area 2, and the second flexible printed circuit board is disposed in the upper step area corresponding to the side of the second area 2 away from the first area 1; alternatively, the first driving IC01 may be directly disposed at the lower step region, and the second driving IC02 may be directly disposed at the upper step region.
Based on the structure of the display panel shown in fig. 2, in order to solve the problem of uneven display brightness of different display areas of the display panel, the embodiment of the invention further provides a driving method of the display panel, wherein the flow chart of the method is shown in fig. 3, and the method comprises the following steps:
s601, the first driving IC01 obtains the first display information and the first gamma adjustment criterion corresponding to the main display area 11.
The first display information is information capable of reflecting a gray level of a display screen of the main display area 11.
The gamma adjustment standard is a gamma curve of a gray value and a gamma voltage value of a display picture. The first gamma adjustment criterion is the corresponding relationship between the gray scale value of the main display frame and the driving voltage output by the driving IC.
The gray scale of the display frame represents different brightness gradation levels from the darkest to the brightest. The smallest unit that the display panel can display is a pixel, one pixel is composed of three sub-pixels of red, green and blue, and each sub-pixel can display different brightness levels. Therefore, it can be understood that the information of the gray scale of the display frame at least includes the gray scale value of the red sub-pixel, the gray scale value of the green sub-pixel and the gray scale value of the blue sub-pixel.
S602, the second driving IC02 obtains the second display information and the second gamma adjustment criterion corresponding to the first auxiliary display area 21.
The second display information is information that can reflect the gray scale value of the display screen of the first auxiliary display area 21. The second gamma adjustment criterion is a corresponding relationship between the gray scale value of the first auxiliary display frame and the driving voltage output by the second driving IC 02.
It should be noted that the second gamma adjustment criterion may be the same as the first gamma adjustment criterion or may be different from the first gamma adjustment criterion.
Because the driving voltage output by the first driving IC01 is transmitted to the main display area 11 through the first data line 31, the driving voltage output by the second driving IC02 is transmitted to the first auxiliary display area 21 through the second data line 32, and the first data line 31 and the second data line 32 have line impedances, when the driving voltage is transmitted to the display area, the line impedance of the data line itself will generate a certain line loss, so that the driving voltage value finally obtained by the display area is not equal to the driving voltage value theoretically obtained by the display area, which causes the deviation between the actual display brightness and the theoretical display brightness of the display area, and in order to solve the influence of the line impedance of the data line on the display effect of the display panel, the line loss of the display area is compensated by using the gamma adjustment standard, so as to realize that the driving voltage value finally obtained by the display area is equal to the driving voltage value theoretically obtained by the display area, thereby improving the problem of display brightness deviation.
Specifically, based on the above analysis, when the line impedance of the first data line 31 is the same as the line impedance of the second data line 32, the line loss generated by the first data line 31 is the same as the line loss generated by the second data line 32, and therefore, the degree of compensating for the line loss of the main display area 11 and the first auxiliary display area 21 is the same, so that the first gamma adjustment criterion and the second gamma adjustment criterion are the same; similarly, when the line impedance of the first data line 31 is different from the line impedance of the second data line 32, the degree of compensation for the line loss of the main display area 11 and the first auxiliary display area 21 is different, so the first gamma adjustment criterion is different from the second gamma adjustment criterion.
S603, the first driving IC01 configures a first driving voltage for the main display area 11 through the first data line 31 according to the first display information and the first gamma adjustment criterion.
S604, the second driving IC02 configures the second driving voltage for the first auxiliary display region 21 through the second data line 32 according to the second display information and the second gamma adjustment criterion.
According to the technical scheme provided by the embodiment of the invention, different driving ICs and corresponding first data lines 31 and second data lines 32 are respectively arranged in the main display area 11 and the auxiliary display area, and compared with a display panel which adopts one driving IC to transmit driving voltages for display to the main display area 11 and the auxiliary display area through data lines, the embodiment of the invention adopts different driving ICs to control different display areas, so that the lengths of the data lines in the main display area are the same, and the lengths of the data lines in the auxiliary display area are the same, thereby relieving the problem of display brightness unevenness to a certain extent, effectively reducing the processing amount and the integration degree of the driving ICs, solving the problem of driving IC integration, and reducing the design and integration cost of the driving ICs. In addition, the driving ICs which drive different display areas respectively acquire display information and gamma adjustment standards corresponding to the display areas, each driving IC drives the corresponding display area according to the acquired display information and the gamma adjustment standards, and each driving IC compensates the loss of the different display areas caused by line impedance to different degrees through the corresponding gamma adjustment standards, so that when each driving chip outputs driving voltage for the display areas through data lines, the driving voltage finally acquired by the different areas and the gray-scale value of a display picture have a uniform corresponding relation, and the problem of uneven display brightness of the main display area 11 and the auxiliary display area of the display panel is further effectively solved.
Furthermore, the main display area 11 and the auxiliary display area of the display panel use different driver ICs to configure the driving voltages, so that the timing for refreshing the display screen of the main display area 11 and the timing for refreshing the display screen of the auxiliary display area are determined by different driver ICs, and in order to ensure that the display screen of the display panel is switched, especially when the main display area 11 and the auxiliary display area of the display panel display the same gray scale screen, the problem of display color difference of the display screen of the display panel due to asynchronous refreshing timing of the main display area 11 and the auxiliary display area does not occur, the embodiment of the invention provides another driving method of the display panel, when the first driver IC01 and the second driver IC02 configure the driving voltages, the first driver IC01 configures the starting and ending timing of the first driving voltage for the main display area 11 through the first data line 31, the same as the start-stop timing at which the second drive IC02 configures the second drive voltage for the first auxiliary display region 21 through the second data line 32.
Specifically, as shown in fig. 4, when the display region of the display panel is driven, it is necessary that the scan lines and the data lines corresponding to the display region are matched with each other, and whether the scan lines drive the display region is determined by the scan driving circuit P0, so that when the first driving IC01 and the second driving IC02 output the data line driving voltages to the corresponding data lines in synchronization, the start/stop timing when the first driving IC01 applies the first driving voltage to the main display region 11 through the first data lines 31 is set to be the same as the start/stop timing when the second driving IC02 applies the second driving voltage to the first auxiliary display region 21 through the second data lines 32, the timing when the first driving IC01 controls the first scanning driving circuit P0' to start outputting the scan line driving signals to the scan lines can be set to be the same as the timing when the second driving IC02 controls the second scanning driving circuit P0 "to start outputting the scan line driving signals to the scan lines, the first driving IC01 is set to control the first scan driving circuit P0' to stop outputting the scan line driving signal to the scan line at the same time as the second driving IC02 controls the second scan driving circuit P0 ″ to stop outputting the scan line driving signal to the scan line, and the driving IC outputs a corresponding control signal to the corresponding scan driving circuit through the signal line X0 to control the scan driving circuit to be turned on or off. Therefore, by setting the relationship between the control signals supplied from the first and second driver ICs 01 and 02 to the respective driver circuits, the problem of synchronized display of the main display region 11 and the first auxiliary display region 21 is achieved.
To facilitate understanding of the implementation process by those skilled in the art, the following description specifically illustrates the arrangement.
It is assumed that the main display region 11 of the display panel includes 1080 scan lines, 1600 first data lines 31; the first auxiliary display area 21 includes 360 scan lines, 1280 second data lines 32, and the length ratio of the main display area 11 to the auxiliary display area in the direction of the data lines is 3: 1, in order to ensure that the start and stop time of the first driving IC01 configuring the driving voltage for the main display region 11 and the start and stop time of the second driving IC02 configuring the driving voltage for the auxiliary display region are the same, the ratio of the time t1 for each scan line in the main display region to output the scan driving signal to the main display region 11 to the time t2 for each scan line in the first auxiliary display region 21 to output the scan driving signal to the auxiliary display region is 1: 3. since the scanning drive signal output from the scanning line is determined by the input signal of the scanning drive circuit, the start and stop timings of the driving voltages to be applied to the main display region 11 and the first auxiliary display region 21 can be made the same by setting the relationship between the input signals supplied to the corresponding drive circuits by the first drive IC01 and the second drive IC 02.
Optionally, referring to fig. 5, in fig. 5, based on another display panel structure further provided by the display panel shown in fig. 2, a part of the display area constituting the second area 2 further includes a second auxiliary display area 23; the opening region 22 is located between the first auxiliary display region 21 and the second auxiliary display region 23; the second auxiliary display region 23 includes a third data line 33 extending in the first direction; the third data line is connected to the second driving IC 02.
Specifically, for such a display panel, the embodiment of the invention provides a display panel driving method, whose flow charts are respectively shown in fig. 6,
S605A, the second driving IC02 acquires the third display information corresponding to the second auxiliary display region 23 and the third gamma adjustment criterion.
It should be noted that the third gamma adjustment criterion may be the same as or different from the first gamma adjustment criterion and/or the second gamma adjustment criterion, and the determination principle of whether the third gamma adjustment criterion is the same as the above-mentioned determination principle of determining whether the third gamma adjustment criterion is the same as the first gamma adjustment criterion and the second gamma adjustment criterion, and therefore, the present invention is not described in detail for the principle.
S606A, the second driving IC02 configures the third driving voltage for the second auxiliary display region 23 via the third data line 33 according to the third display information and the third gamma adjustment criterion.
It should be noted that, in order to enable synchronous refreshing of the display screens displayed in the main display area 11, the first display area and the second display area, so as to avoid the problem of poor display effect caused by display color difference when the display screens are switched, it is preferable that the second driving IC02 configures the driving voltages for the first auxiliary display area 21 and the second auxiliary display area 23 simultaneously when the driving voltages are configured, and the second driving IC02 and the first driving IC01 configure time synchronization of the driving voltages for the corresponding display areas.
Optionally, referring to fig. 7, fig. 7 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 7, the partial display region constituting the second region 2 further includes a second auxiliary display region 23, and the opening region 22 is located between the first auxiliary display region 21 and the second auxiliary display region 23; the second auxiliary display area 23 includes a third data line 33 extending in the first direction; the display panel further includes a third driving IC03, the third driving IC03 is disposed on a side of the second region 2 away from the first region 1, and the third data line 33 is connected to the third driving IC 03.
Specifically, for the display panel shown in fig. 7, the embodiment of the invention provides a display panel driving method, whose flow charts are respectively shown in fig. 8,
S605B, the third drive IC03 acquires the third display information corresponding to the second auxiliary display region 23 and the third gamma adjustment criterion.
S606B, the third driving IC03 configures the third driving voltage for the second auxiliary display region 23 through the third data line 33 according to the third display information and the third gamma adjustment criterion.
Further, in order to ensure that when the display frames of the display panel are switched, especially, the frames with the same gray scale are displayed in the main display area 11, the first auxiliary display area 21 and the second auxiliary display area 23 of the display panel, the asynchronous refreshing time of the main display area 11, the first auxiliary display area 21 and the second auxiliary display area 23 will not occur, when the first driving IC01 and the second driving IC02 configure the driving voltage according to the technical solution provided by the embodiment of the present invention, the first driving IC01 configures the start and stop time of the first driving voltage for the main display region 11 through the first data line 31, and the start and stop time of the second driving voltage for the first auxiliary display region 21 by the second driving IC02 through the second data line 32, and the start-stop time of the third driving IC03 configuring the second auxiliary display region 23 with the third driving voltage through the second data line 32 is the same.
It should be noted that, the first driver IC01, the second driver IC02 and the third driver IC03 have the same start-stop time for disposing the driving voltages in the display regions corresponding to the three driver chips, and have the same principle as the above-mentioned embodiment for disposing the driving voltages in the display regions corresponding to the first driver IC01 and the second driver IC02, and therefore, the embodiment of the present invention is not repeated herein.
Specifically, in combination with the two driving methods for driving the display panel including the main display area 11, the first auxiliary display area 21, and the second auxiliary display area 23, in order to ensure that the driving IC can obtain the gamma adjustment standard, the embodiment of the present invention provides two implementation manners,
the first mode, in combination with the display panel shown in fig. 5, further provides an implementation manner, and a flowchart thereof is shown in fig. 9:
before the first driving IC01 acquires the first display information corresponding to the main display area 11 and the first gamma adjustment criterion S601, the method further includes:
S607C, the first drive IC01 receives the first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in the first designated position.
Before the second driver IC02 acquires the second gamma adjustment permission S602, the method further includes:
S607C', the second drive IC02 receives the second gamma adjustment standard and the third gamma adjustment standard sent by the upper computer, and stores the second gamma adjustment standard and the third gamma adjustment standard in a second designated position and a third designated position respectively.
In a second mode, in combination with the display panel shown in fig. 7, a flowchart of an implementation mode is shown in fig. 10:
before the first driving IC01 acquires the first display information corresponding to the main display area 11 and the first gamma adjustment criterion S601, the method further includes:
S607D, the first drive IC01 receives the first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in a first designated position.
Before the second driver IC02 acquires the second gamma adjustment permission S601, the method further includes:
S607D', the second driving IC02 receives the second gamma adjustment standard sent by the upper computer and stores the second gamma adjustment standard at a second appointed position.
Before the third driver IC03 acquires the third gamma adjustment permission S601, the method further includes:
S607D' the third driving IC03 receives the third gamma adjustment standard sent by the upper computer and stores the third gamma adjustment standard in a third designated position.
It should be noted that the first driver IC01 obtains the first gamma adjustment criterion, the second driver IC02 obtains the second gamma adjustment criterion, and the third driver IC03 obtains the third gamma adjustment criterion. Therefore, taking the first driver IC01 acquiring the first gamma adjustment criterion as an example, the process of acquiring the gamma adjustment criterion by the driver IC will be specifically described below.
Firstly, an optical measuring instrument (such as a display color analyzer CA-310, a colorimeter, etc.) measures the brightness and color coordinates of the main display area 11 of the display panel at different gray scales, and the measuring instrument transmits the measured data to an upper computer connected with the display panel and the measuring instrument, then the upper computer performs fitting processing on the measured data to obtain a fitting curve of first gamma adjustment, and corrects the measured data according to the obtained fitting curve to obtain a corresponding first gamma adjustment standard, the upper computer sends the obtained first gamma adjustment standard to a first driving IC01, and the first driving IC01 receives the first gamma adjustment standard and stores the first gamma adjustment standard in a first designated position so that the first driving IC01 calls the first gamma adjustment standard.
It should be noted that, when the first driving IC01 and the second driving IC02 drive the display area of the display panel to display, it is actually required that the data lines and the scan lines in the display panel cooperate to make the pixel electrodes in the display area emit light. In general, the scan lines in the display panel are driven by the driving IC through the scan driving circuit corresponding to the scan lines.
Based on the above explanation, it is optional that, for a display panel having two driving ICs, the main display region 11, the first auxiliary display region 21, and the second auxiliary display region 23, the display panel further includes: a signal line X0, the signal line X0 including a first scan control signal line, a second scan control signal line X0, and a third scan control signal line; at least one first scan driving circuit P0 ', the first scan driving circuit P0' being connected to the first driving IC01 through the first scan control signal line; at least one second scan driving circuit P0 ″ connected to the second driving IC02 through the second scan control signal line, the second scan driving circuit P0 ″; at least one third scan driving circuit connected to the second driving IC02 through the third scan control signal line.
The signal line X0 is in a different layer from the first data line 31, the second data line 32, and the third data line 33.
Based on the above explanation, it is optional that, for a display panel having three driving ICs, the main display region 11, the first auxiliary display region 21, and the second auxiliary display region 23, the display panel further includes: a signal line X0, the signal line X0 including a first scan control signal line, a second scan control signal line, and a third scan control signal line; at least one first scan driving circuit P0 ', the first scan driving circuit P0' being connected to the first driving IC01 through the first scan control signal line; at least one second scan driving circuit P0 ″ connected to the second driving IC02 through the second scan control signal line, the second scan driving circuit P0 ″; and at least one third scan driving circuit connected to the third driving IC03 through the third scan control signal line.
The signal line X0 is in a different layer from the first data line 31, the second data line 32, and the third data line 33.
Specifically, a display panel including a main display region and a first auxiliary display region and adopting bilateral driving is taken as an example for specific description. As shown in fig. 11, 12 and 13, fig. 11 is a plan view of the display panel with double-side driving, fig. 12 is an enlarged schematic view of a region a of the display panel shown in fig. 11, and fig. 13 is a cross-sectional view of fig. 12 in the direction aa'. Since the first driver IC01 outputs a control signal for controlling the start-up scanning driver circuit to the first scanning driver circuit P0' through the connected signal line X0, the second driver IC02 outputs a control signal for controlling the start-up scanning driver circuit to the second scanning driver circuit P0 "through the connected signal line X0, and the first driver IC01 and the second driver IC02 also need to output a corresponding driving voltage to the corresponding data line 3, considering that when the signal line X0 led out from the driver IC extends in the direction of the corresponding scanning driver circuit and the data line 3 led out from the driver IC extends in the corresponding display region, the signal line X0 and the data line may intersect with each other and the corresponding display region cannot be normally driven to display, when the signal line X0 and the data line 3 are provided, the signal line X0 and the data line are provided at different layers (i.e., the signal line and the first data line 31, 31), The second data line 32 and the third data line 33 are in different layers), and the level of the signal line X0 is separated from the level of the data line 3 by an insulating layer H0, so that the signal line and the data line are prevented from crossing each other.
As shown in fig. 14, the present embodiment also provides a display device, which includes the display panel.
The specific structure and driving principle of the display panel are the same as those of the above embodiments, and are not described herein again. Of course, the display device shown in fig. 14 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A display panel is characterized by comprising a first driving IC, a first area, a second area and a second driving IC which are arranged along a first direction;
the first region is composed of a partial display region, the partial display region constituting the first region including a main display region including first data lines extending in the first direction;
the second region is composed of a partial display region and a partial non-display region, the second region is provided with an opening, the partial non-display region is located in the opening region, the partial display region composing the second region comprises a first auxiliary display region, the first auxiliary display region comprises a second data line extending along the first direction, and the lengths of the first data line and the second data line are different;
the first data line is connected to the first driving IC, and the second data line is connected to the second driving IC;
the display panel further includes:
the signal line comprises a first scanning control signal line and a second scanning control signal line;
at least one first scan driving circuit connected to the first driving IC through the first scan control signal line;
at least one second scan driving circuit connected to the second driving IC through the second scan control signal line;
the starting and stopping time of the first scanning driving circuit for outputting the scanning line driving signal to the scanning line is controlled by the first driving IC and is the same as the starting and stopping time of the second scanning driving circuit for outputting the scanning line driving signal to the scanning line by the second driving IC;
the partial display region constituting the second region further includes a second auxiliary display region, and the opening region is located between the first auxiliary display region and the second auxiliary display region; the second auxiliary display area includes a third data line extending in a first direction;
the display panel further comprises a third driving IC, the third driving IC is arranged on one side, away from the first area, of the second area, and the third data line is connected to the third driving IC.
2. The display panel according to claim 1,
the partial display area constituting the second area further includes a second auxiliary display area; the opening region is located between the first auxiliary display region and the second auxiliary display region; the second auxiliary display area comprises a third data line extending along the first direction, and the length of the third data line is equal to that of the second data line;
the third data line is connected to the second driving IC.
3. The display panel according to claim 2, characterized in that the display panel further comprises:
a third scanning control signal line;
at least one third scan driving circuit connected to the second driving IC through the third scan control signal line;
wherein the signal line is in a different layer from the first data line, the second data line, and the third data line.
4. The display panel according to claim 1, characterized in that the display panel further comprises:
a third scanning control signal line;
at least one third scan driving circuit connected to the third driving IC through the third scan control signal line;
wherein the signal line is in a different layer from the first data line, the second data line, and the third data line.
5. A method of driving a display panel, applicable to the display panel of claim 1, the method comprising:
the first drive IC acquires first display information and a first gamma adjustment standard corresponding to the main display area;
the second drive IC acquires second display information and a second gamma adjustment standard corresponding to the first auxiliary display area;
the first driving IC configures a first driving voltage for the main display area through the first data line according to first display information and a first gamma adjustment standard;
and the second drive IC configures a second drive voltage for the first auxiliary display area through the second data line according to second display information and a second gamma adjustment standard.
6. The method of claim 5, wherein the start-stop time of the first driving IC configuring the main display region with the first driving voltage through the first data line is the same as the start-stop time of the second driving IC configuring the first auxiliary display region with the second driving voltage through the second data line.
7. The method of claim 5,
the partial display area of the second area further comprises a second auxiliary display area, and the opening area is positioned between the first auxiliary display area and the second auxiliary display area; the second auxiliary display area comprises a third data line;
the method further comprises the following steps:
the second drive IC acquires third display information and a third gamma adjustment standard corresponding to the second auxiliary display area;
and the second drive IC configures a third drive voltage for the second auxiliary display area through the third data line according to the third display information and a third gamma adjustment standard.
8. The method of claim 5,
the partial display area of the second area further comprises a second auxiliary display area, and the opening area is positioned between the first auxiliary display area and the second auxiliary display area; the second auxiliary display area comprises a third data line;
the display panel further comprises a third driving IC connected to the third data line;
the method further comprises the following steps:
the third drive IC acquires third display information and a third gamma adjustment standard corresponding to the second auxiliary display area;
and the third drive IC configures a third drive voltage for a second auxiliary display area through the third data line according to the third display information and a third gamma adjustment standard.
9. The method of claim 8,
the start-stop time of the first driving voltage configured for the main display area by the first driving IC through the first data line is the same as the start-stop time of the second driving voltage configured for the first auxiliary display area by the second driving IC through the second data line, and the start-stop time of the third driving voltage configured for the second auxiliary display area by the third driving IC through the second data line.
10. The method of claim 7,
before the first driver IC obtains the first display information corresponding to the main display area and the first gamma adjustment criterion, the method further includes:
the first drive IC receives a first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in a first designated position;
before the second driver IC acquires the second gamma adjustment criterion, the method further includes:
and the second drive IC receives a second gamma adjustment standard and a third gamma adjustment standard sent by the upper computer, and respectively stores the second gamma adjustment standard and the third gamma adjustment standard in a second designated position and a third designated position.
11. The method of claim 8,
before the first driver IC obtains the first display information corresponding to the main display area and the first gamma adjustment criterion, the method further includes:
the first drive IC receives a first gamma adjustment standard sent by the upper computer and stores the first gamma adjustment standard in a first designated position;
before the second driver IC acquires the second gamma adjustment criterion, the method further includes:
the second drive IC receives a second gamma regulation standard sent by the upper computer and stores the second gamma regulation standard in a second designated position;
before the third driver IC acquires the third gamma adjustment criterion, the method further includes:
and the third driving IC receives a third gamma adjusting standard sent by the upper computer and stores the third gamma adjusting standard in a third designated position.
12. A display device characterized in that it comprises a display panel as claimed in any one of claims 1 to 4.
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| CN202110337880.1A CN113096574B (en) | 2017-11-30 | 2017-11-30 | Display panel, display panel driving method and display device |
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| CN202110337880.1A CN113096574B (en) | 2017-11-30 | 2017-11-30 | Display panel, display panel driving method and display device |
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| TWI697887B (en) * | 2018-03-21 | 2020-07-01 | 奕力科技股份有限公司 | Display device |
| CN108597436A (en) * | 2018-05-09 | 2018-09-28 | 昆山国显光电有限公司 | Display panel and display device |
| CN110853560B (en) * | 2018-08-21 | 2022-10-21 | 西安中兴新软件有限责任公司 | Display correction method, device, equipment and storage medium |
| CN109102781B (en) * | 2018-08-28 | 2021-05-07 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111128066B (en) * | 2018-10-31 | 2024-01-30 | 北京小米移动软件有限公司 | Terminal screen, screen structure, control method and device thereof and terminal |
| CN109473077A (en) * | 2018-12-25 | 2019-03-15 | 惠科股份有限公司 | A kind of driving method of display panel, system and display device |
| WO2020177124A1 (en) * | 2019-03-07 | 2020-09-10 | 深圳市柔宇科技有限公司 | Display control method, display device and electronic device |
| CN109697955B (en) | 2019-03-07 | 2023-10-13 | 武汉天马微电子有限公司 | Brightness compensation method of display panel |
| CN109979389B (en) * | 2019-04-08 | 2020-07-31 | 成都京东方光电科技有限公司 | Gamma correction method and device, display device, computer storage medium |
| CN110444178B (en) | 2019-08-20 | 2022-01-11 | 京东方科技集团股份有限公司 | Driving method, driving device and display equipment |
| CN110634434B (en) * | 2019-09-11 | 2022-08-05 | 武汉天马微电子有限公司 | Driving method and driving device of display panel and display device |
| CN111354264B (en) * | 2020-03-25 | 2021-12-10 | 武汉天马微电子有限公司 | Display device and driving method thereof |
| CN111816112B (en) * | 2020-07-24 | 2022-04-08 | 昆山国显光电有限公司 | Method and device for determining compensation parameters of display panel |
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| CN107731152A (en) | 2018-02-23 |
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