CN108269516B - Driving load compensation unit, method and module and display device - Google Patents
Driving load compensation unit, method and module and display device Download PDFInfo
- Publication number
- CN108269516B CN108269516B CN201810069247.7A CN201810069247A CN108269516B CN 108269516 B CN108269516 B CN 108269516B CN 201810069247 A CN201810069247 A CN 201810069247A CN 108269516 B CN108269516 B CN 108269516B
- Authority
- CN
- China
- Prior art keywords
- load compensation
- sub
- nth
- load
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
-
- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a driving load compensation unit, a driving load compensation method, a driving load compensation module and a display device. The driving load compensation unit comprises a load compensation control subunit and a resistance-capacitance load subunit; the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules; n is an integer greater than 1; the first end of the nth switch module is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch module is connected with the second end of the nth resistance-capacitance load module; n is an integer greater than 1 and less than or equal to N; the load compensation control subunit generates a first load compensation control signal and an nth load compensation control signal; the nth switch module is used for controlling the connection between the first end of the nth switch module and the second end of the nth switch module to be switched on or off under the control of the nth load compensation control signal. The invention solves the problems of uneven pixel driving current and brightness difference in the main and auxiliary display areas.
Description
Technical Field
The invention relates to the technical field of display driving, in particular to a driving load compensation unit, a driving load compensation method, a driving load compensation module and a display device.
Background
FIG. 1A is a schematic diagram of a full-screen frameless display panel, which comprises: a main display area 101 for normal display; a first sub display area 102 for special display; a second sub display area 103 for special display; and a non-display area 104 avoiding the mobile phone camera and the receiver. In order to avoid a camera and a receiver of the mobile phone, the top end of the display panel is provided with a groove digging area with certain depth and width, and the top display area is divided into two auxiliary display areas. Because the number of the sub-pixel units in each row in each sub-display area is smaller than that in the main display area, the load of the main gate driving unit corresponding to the main display area is inconsistent with the load of the sub-gate driving unit corresponding to the sub-display area, the waveform of the gate driving signal output by the main gate driving unit is different from that of the gate driving signal output by the sub-gate driving unit, the charging time of the sub-pixel units in the main display area is different from that of the sub-pixel units in the sub-display area, the display brightness of the main display area is inconsistent with that of the sub-display area, and a relatively obvious split screen phenomenon is generated.
Fig. 1B is a waveform diagram of gate driving signals provided for a row of sub-pixel cells in the first sub-display region 102 in fig. 1A, and fig. 1C is a waveform diagram of gate driving signals provided for a row of sub-pixel cells in the main display region 101 in fig. 1A; in fig. 1B and 1C, the vertical axis represents the voltage V of the gate driving signal, and the horizontal axis represents the time t. When the voltage of the gate driving signal reaches the reference voltage Vref, it is considered that the node where the switching transistor included in the sub-pixel cell is turned on or off, the actual charging time of the row of sub-pixel cells in the first sub-display region 102 is t2 as seen in fig. 1B, and the actual charging time of the row of sub-pixel cells in the main display region 101 is t1 as seen in fig. 1C, and t1 is less than t 2. When each sub-pixel unit gives the same gray scale voltage, the pixel driving current in the main display area and the pixel driving current in the sub-display area are not uniform due to inconsistent charging time, and brightness difference is generated.
Disclosure of Invention
The invention mainly aims to provide a driving load compensation unit, a driving load compensation method, a driving load compensation module and a display device, and solves the problems that when each sub-pixel unit in the prior art gives the same gray scale voltage, the pixel driving current in a main display area and a sub-display area is not uniform and brightness difference is generated due to inconsistent charging time.
In order to achieve the above object, the present invention provides a driving load compensation unit applied to a display device including a display panel divided into a main display area and a sub display area and a gate driving circuit; at least one row of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an auxiliary grid driving unit of the auxiliary grid driving sub-circuit is connected with a grid line arranged in the auxiliary display area, and the grid line is connected with a row of sub-pixel units arranged in the auxiliary display area; the first end of the grid line is connected with the grid driving signal output end of the auxiliary grid driving unit; the driving load compensation unit comprises a load compensation control subunit and a resistance-capacitance load subunit, wherein,
the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules; n is an integer greater than 1;
the first end of the nth switch module is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch module is connected with the second end of the nth resistance-capacitance load module; n is an integer greater than 1 and less than or equal to N;
the first end of the first switch module is connected with the second end of the grid line; the second end of the first switch module is connected with the second end of the first resistance-capacitance load module;
the control end of the nth switch module and the control end of the first switch module are both connected with the load compensation control subunit;
the load compensation control subunit is configured to generate a first load compensation control signal and an nth load compensation control signal, transmit the first load compensation control signal to the control end of the first switch module, and transmit the nth load compensation control signal to the control end of the nth switch module;
the first switch module is used for controlling to switch on or off the connection between the first end of the first switch module and the second end of the first switch module under the control of the first load compensation control signal;
the nth switch module is used for controlling the connection between the first end of the nth switch module and the second end of the nth switch module to be switched on or off under the control of the nth load compensation control signal.
In practice, the driving load compensation unit of the present invention further includes: the brightness detection subunit is used for detecting first brightness of one sub-pixel unit in the row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detecting second brightness of one sub-pixel unit in the main display area under the preset gray scale, and transmitting the first brightness and the second brightness to the load compensation control subunit;
the load compensation control subunit is specifically configured to generate the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness.
In implementation, the load compensation control subunit includes N load compensation control signal output ends;
the load compensation control subunit is further configured to output the first load compensation control signal through a first load compensation control signal output end, and output the nth load compensation control signal through an nth load compensation control signal output end;
the first switch module includes: a control end of the first switch element is connected with the first load compensation control signal output end, a first end of the first switch element is connected with a second end of the grid line, and a second end of the first switch element is connected with a second end of the first resistance-capacitance load module;
the nth switching module includes: and the control end of the nth switch element is connected with the nth load compensation control signal output end, the first end of the nth switch element is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch element is connected with the second end of the nth resistance-capacitance load module.
In implementation, the first resistance-capacitance load module comprises a first compensation resistor and a first compensation capacitor;
the first end of the first compensation resistor is connected with the first end of the second switch module, and the second end of the first compensation resistor is connected with the second end of the first switch module;
the first end of the first compensation capacitor is connected with the first end of the first compensation resistor, and the second end of the first compensation capacitor is connected with the fixed voltage end;
the nth resistance-capacitance load module comprises an nth compensation resistor and an nth compensation capacitor;
the first end of the nth compensation resistor is connected with the first end of the (n + 1) th switch module, and the second end of the nth compensation resistor is connected with the second end of the nth switch module;
and the first end of the nth compensation capacitor is connected with the first end of the nth compensation resistor, and the second end of the nth compensation capacitor is connected with the fixed voltage end.
The present invention also provides a driving load compensation method applied to the driving load compensation unit, where the driving load compensation method includes:
the load compensation control subunit generates a first load compensation control signal and an nth load compensation control signal, transmits the first load compensation control signal to the control end of the first switch module, and transmits the nth load compensation control signal to the control end of the nth switch module;
under the control of the first load compensation control signal, the first switch module controls to switch on or off the connection between the first end of the first switch module and the second end of the first switch module;
the nth switch module is used for controlling to switch on or off the connection between the first end of the nth switch module and the second end of the nth switch module under the control of the nth load compensation control signal;
n is an integer greater than 1; n is an integer greater than 1 and less than or equal to N.
In practice, the driving load compensation unit further includes a luminance detection subunit;
before the step of generating the first load compensation control signal and the nth load compensation control signal by the load compensation control subunit, the driving load compensation method further includes: the brightness detection subunit detects first brightness of a sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detects second brightness of a sub-pixel unit in the main display area under the preset gray scale, and transmits the first brightness and the second brightness to the load compensation control subunit;
the step of generating the nth load compensation control signal by the load compensation control subunit specifically includes: the load compensation control subunit generates the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness;
the sub-pixel units in the row are driven by a sub-gate driving unit included in the sub-gate driving sub-unit, and the gate driving signal output end of the sub-gate driving unit is connected with the resistance-capacitance load sub-unit included in the driving load compensation unit.
When the load compensation control unit is implemented, the number of the nth load compensation control signals generated by the load compensation control subunit according to the first brightness and the second brightness is A; a is an integer greater than 1;
the driving load compensation method further includes:
in the a-th test time period, the load compensation control subunit transmits an a-th load compensation control signal to the control end of the n-th switch module, and the brightness detection subunit detects third brightness of one sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under the preset gray scale and transmits the third brightness to the load compensation control subunit; a is a positive integer less than or equal to A;
the load compensation control subunit compares the third brightness with the second brightness, and selects an nth load compensation control signal corresponding to the third brightness closest to the second brightness as an nth display load compensation control signal.
The invention also provides a driving load compensation module which is applied to a display device, wherein the display device comprises a display panel and a grid driving circuit, and the display panel is divided into a main display area and an auxiliary display area; m rows of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an mth auxiliary grid driving unit included in the auxiliary grid driving sub-circuit is connected with an mth grid line, and the mth grid line is connected with an mth row of sub-pixel units arranged in the auxiliary display area; the first end of the mth grid line is connected with the grid driving signal output end of the mth auxiliary grid driving unit; m is a positive integer; m is a positive integer less than or equal to M; the driving load compensation module comprises M driving load compensation units;
the first end of the first switch module in the resistance-capacitance load sub-unit included in the mth driving load compensation unit is connected with the second end of the mth grid line.
The invention also provides a display device comprising the driving load compensation module according to claim 8.
In practice, the display device of the invention further comprises a display panel and a gate drive circuit;
the display panel is divided into a main display area and a sub display area;
the grid driving circuit comprises a main grid driving sub-circuit and an auxiliary grid driving sub-circuit;
the auxiliary grid driving sub-circuit comprises M levels of auxiliary grid driving units, and the auxiliary grid driving unit at one level is used for driving a row of sub-pixel units arranged in the auxiliary display area; m is a positive integer;
the main grid electrode driving sub-circuit comprises a plurality of stages of main grid electrode driving units, and the main grid electrode driving unit at one stage is used for driving a row of sub-pixel units arranged in the main display area;
the number of the sub-pixel units included in the row of sub-pixel units arranged in the auxiliary display area is not equal to the number of the sub-pixel units included in the row of sub-pixel units arranged in the main display area.
Compared with the prior art, the driving load compensation unit, the driving load compensation method, the driving load compensation module and the display device comprise a load compensation control subunit and a resistance-capacitance load subunit, wherein the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules (N is an integer greater than 1), the control ends of the N switch modules are respectively connected with the load compensation control subunit, the load compensation control subunit controls the number of the resistance-capacitance load subunits connected to corresponding line grid lines arranged in the auxiliary display area, the equivalent load value of a grid driving unit of the special-shaped display area (auxiliary display area) is adjusted, the effect of adjusting the pixel charging time of the auxiliary display area is achieved, the purpose of adjusting the brightness of the auxiliary display area is achieved, and the brightness difference between the main display area and the auxiliary display area is improved.
Drawings
FIG. 1A is a schematic diagram of a conventional display panel;
FIG. 1B is a waveform diagram of a row of sub-pixel units in the first sub-display region 102 in FIG. 1A providing gate driving signals;
fig. 1C is a waveform diagram for providing gate driving signals to a row of sub-pixel units in the main display region 101 in fig. 1A;
FIG. 2 is a block diagram of a first embodiment of a RC load compensation unit according to the present invention;
FIG. 3 is a schematic diagram illustrating the arrangement of sub-pixel units at the boundary between the main display area and the sub-display area on the display panel;
FIG. 4 is a circuit diagram of a second embodiment of a RC load compensation unit according to the present invention;
fig. 5 is a schematic diagram of equivalent load compensation when the select signal control code is 00111.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 driving load compensation unit is applied to a display device, the display device comprises a display panel and a grid driving circuit, and the display panel is divided into a main display area and an auxiliary display area; at least one row of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an auxiliary grid driving unit of the auxiliary grid driving sub-circuit is connected with a grid line arranged in the auxiliary display area, and the grid line is connected with a row of sub-pixel units arranged in the auxiliary display area; the first end of the grid line is connected with the grid driving signal output end of the auxiliary grid driving unit;
the driving load compensation unit according to the embodiment of the present invention includes a load compensation control subunit and a resistance-capacitance load subunit, wherein,
the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules; n is an integer greater than 1;
the first end of the nth switch module is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch module is connected with the second end of the nth resistance-capacitance load module; n is an integer greater than 1 and less than or equal to N;
the first end of the first switch module is connected with the second end of the grid line; the second end of the first switch module is connected with the second end of the first resistance-capacitance load module;
the control end of the nth switch module and the control end of the first switch module are both connected with the load compensation control subunit;
the load compensation control subunit is configured to generate a first load compensation control signal and an nth load compensation control signal, transmit the first load compensation control signal to the control end of the first switch module, and transmit the nth load compensation control signal to the control end of the nth switch module;
the first switch module is used for controlling to switch on or off the connection between the first end of the first switch module and the second end of the first switch module under the control of the first load compensation control signal;
the nth switch module is used for controlling the connection between the first end of the nth switch module and the second end of the nth switch module to be switched on or off under the control of the nth load compensation control signal.
The driving load compensation unit comprises a load compensation control subunit and a resistance-capacitance load subunit, wherein the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules, control ends of the N switch modules are respectively connected with the load compensation control subunit, the number of the resistance-capacitance load subunits connected to corresponding line grid lines arranged in an auxiliary display area is controlled through the load compensation control subunit, the equivalent load value of a grid driving unit of an abnormal display area (auxiliary display area) is adjusted, the effect of adjusting the pixel charging time of the auxiliary display area is achieved, the purpose of adjusting the brightness of the auxiliary display area is achieved, and the brightness difference between the main display area and the auxiliary display area is improved. In the embodiment of the invention, the load compensation value of the gate drive unit accessed to the corresponding auxiliary display area is adjustable, so that the problem of inaccurate load compensation caused by process fluctuation of the display substrate is avoided.
In actual operation, the gate driving circuit comprises a main gate driving sub-circuit corresponding to the main display area and a sub-gate driving sub-circuit corresponding to the sub-display area;
the main grid electrode driving sub-circuit comprises a plurality of stages of main grid electrode driving units, and each stage of main grid electrode driving unit is used for driving a row of sub-pixel units in the main display area;
the auxiliary grid electrode driving sub-circuit comprises at least one stage of auxiliary grid electrode driving unit, and each stage of auxiliary grid electrode driving unit is used for driving a row of sub-pixel units in the auxiliary display area.
In a specific implementation, the number of the sub-pixel units included in one row of the sub-pixel units in the main display area is often greater than the number of the sub-pixel units included in one row of the sub-pixel units in the auxiliary display area, so that the phenomenon of uneven display in the main display area and the auxiliary display area is caused.
In actual operation, a first end of a row of gate lines in the secondary display region is connected with a gate driving signal output end of a corresponding secondary gate driving unit, the row of gate lines is connected with a corresponding row of sub-pixel units in the secondary display region, the corresponding row of sub-pixel units comprises a plurality of sub-pixel units, each sub-pixel unit comprises a switch TFT (thin film transistor) and a pixel electrode, a gate of the switch TFT is connected with the row of gate lines, a source of the switch TFT is connected with a column of data lines, and a drain of the switch TFT is connected with the pixel electrode; the second end of the row gate line is connected to the first switch module in the rc-sub unit included in the driving load compensation unit according to the embodiment of the present invention. In the actual operation of the device,
as shown in fig. 2, the first embodiment of the driving load compensation unit according to the present invention includes a load compensation control sub-unit 21 and a resistance-capacitance load sub-unit 20, wherein,
the resistance-capacitance load subunit 20 includes a first switch module 2011, a first resistance-capacitance load module 2012, a second switch module 2021, a second resistance-capacitance load module 2022, a third switch module 2031, a third resistance-capacitance load module 2032, a fourth switch module 2041, a fourth resistance-capacitance load module 2042, a fifth switch module 2051, and a fifth resistance-capacitance load module 2052; in the embodiment shown in fig. 2, N is equal to 5, and in actual operation, N may be any integer greater than 1, where the value of N is not limited, and is used only as an example;
each resistance-capacitance load module consists of a compensation resistor and a compensation capacitor, the resistance value of the compensation resistor and the capacitance value of the compensation capacitor can be selected according to the situation, and each resistance-capacitance load module is a minimum precision unit for load compensation of the auxiliary grid driving unit;
in fig. 2, reference numeral GF is a sub-gate driving unit, and reference numeral Gout-F is a gate driving signal output terminal of the sub-gate driving unit; the first end of a grid line positioned in the auxiliary display area is connected with the Gout-F;
in fig. 2, reference numeral 22 is an initial load unit of the sub-gate driving unit GF, where R22 is an equivalent resistance on the gate line when the resistance-capacitance load module is not connected, and C22 is an equivalent capacitance between the gate line and the equivalent ground GND when the resistance-capacitance load module is not connected; (in FIG. 2, the equivalent ground terminal GND may be replaced with a common electrode terminal for outputting a common electrode voltage)
A first terminal of the first switching module 2011 is connected to the second terminal B of the gate line; a second terminal of the first switch module 2011 is connected to a second terminal of the first rc load module 2012;
a first end of the second switch module 2021 is connected to a first end of the first rc load module 2012, and a second end of the second switch module 2021 is connected to a second end of the second rc load module 2022;
a first end of the third switching module 2031 is connected to a first end of the second rc load module 2022, and a second end of the third switching module 2031 is connected to a second end of the third rc load module 2032;
a first end of the fourth switching module 2041 is connected to a first end of the third resistive-capacitive load module 2032, and a second end of the fourth switching module 2041 is connected to a second end of the fourth resistive-capacitive load module 2042;
a first end of the fifth switch module 2051 is connected to a first end of the fourth resistive-capacitive load module 2042, and a second end of the fifth switch module 2051 is connected to a second end of the fifth resistive-capacitive load module 2052;
the load compensation control subunit 21 includes a first load compensation control signal output end, a second load compensation control signal output end, a third load compensation control signal output end, a fourth load compensation control signal output end, and a fifth load compensation control signal output end;
the load compensation control subunit 21 is configured to generate a first load compensation control signal S1, a second load compensation control signal S2, a third load compensation control signal S3, a fourth load compensation control signal S4, and a fifth load compensation control signal S5, and further configured to output a first load compensation control signal S1 through the first load compensation control signal output terminal, output a second load compensation control signal S2 through the second load compensation control signal output terminal, output a third load compensation control signal S3 through the third load compensation control signal output terminal, output a fourth load compensation control signal S4 through the fourth load compensation control signal output terminal, and output a fifth load compensation control signal S5 through the fifth load compensation control signal output terminal;
the control end of the first switch module 2011 is connected to S1; the control end of the second switch module 2021 is connected to S2; the control end of the third switching module 2031 is accessed to S3; the control end of the fourth switching module 2041 is connected to S4; the control end of the fifth switch module 2051 is connected to S5;
the first switch module 2011 is configured to control to turn on or off a connection between a first terminal of the first switch module 2011 and a second terminal of the first switch module 2011 under the control of the first load compensation control signal S1;
the second switch module 2021 is configured to control to turn on or off the connection between the first end of the second switch module 2021 and the second end of the second switch module 2021 under the control of the second load compensation control signal S2;
the third switching module 2031 is configured to control to turn on or off a connection between a first end of the third switching module 2031 and a second end of the third switching module 2031 under the control of the third load compensation control signal S3;
the fourth switching module 2041 is configured to control to switch on or off a connection between a first end of the fourth switching module 2041 and a second end of the fourth switching module 2041 under the control of the fourth load compensation control signal S4;
the fifth switch module 2051 is configured to control to turn on or off the connection between the first end of the fifth switch module 2051 and the second end of the fifth switch module 2051 under the control of the fifth load compensation control signal S5.
When the embodiment of the driving load compensation unit shown in fig. 2 of the present invention is in operation, when a switch module is turned on, two resistance-capacitance load modules adjacent to the switch module are connected to each other, and the total load becomes larger; the specific embodiment of the driving load compensation unit shown in fig. 2 of the present invention can control the number of the turned-on switch modules according to the actual situation, thereby controlling the number of the resistance-capacitance load modules connected to the gate lines in the sub display region, realizing multi-bit adjustability of the load, and achieving the purpose of adjusting the total load compensation value.
FIG. 3 is a schematic diagram illustrating the arrangement of sub-pixel units at the boundary between the main display area and the sub-display area on the display panel;
as shown in fig. 3, reference numeral 301 denotes a first sub display region located at the upper left of the display panel, and reference numeral 302 denotes a second sub display region located at the upper right of the display panel; a main display area (only a part of which is shown in fig. 3) denoted by reference numeral 31; reference numeral 32 is a non-display area; a camera, a headphone, and the like are provided in the non-display area 32;
in the embodiment shown in fig. 3, in the main display area 31, each row of sub-pixel units is driven by GOAs (Gate On Array, Gate driving units disposed On the Array substrate) in a bilateral manner;
in the first sub-display area 301, each row of sub-pixel units is subjected to GOA single-side driving;
in the second sub-display area 302, each row of sub-pixel units is in GOA single-side driving;
as shown in fig. 3, a first row of left-side sub-pixel units and a second row of left-side sub-pixel units are disposed in the first sub-display area 301;
the first row left sub-pixel unit is connected to the gate driving signal output terminal Gout-FL1 of the first left sub-gate driving unit GFL1 through a first row left gate line (not shown in fig. 3);
the second row left sub-pixel unit is connected with the gate driving signal output terminal Gout-FL2 of the second left sub-gate driving unit GFL2 through a second row left gate line (not shown in fig. 3);
a first row right sub-pixel unit and a second row right sub-pixel unit are arranged in the second sub-display area 302;
the first row right sub-pixel unit is connected with the gate driving signal output terminal Gout-FR1 of the first right sub-gate driving unit GFR1 through a first row right gate line (not shown in fig. 3);
the second row of right sub-pixel cells is connected to the gate driving signal output terminal Gout-FR2 of the second right sub-gate driving unit GFR2 through a second row of right gate lines (not shown in fig. 3);
a third row of sub-pixel units and a fourth row of sub-pixel units are arranged in the main display area 31;
in fig. 3, reference numeral GML1 is a first left-side main gate driving unit; a gate drive signal output terminal labeled Gout-ML1 of a first left-side main gate drive unit GML 1;
labeled GMR1 is a first right-side main gate drive unit; a gate driving signal output terminal labeled Gout-MR1 of the first right-side main gate driving unit GMR 1;
labeled GML2 is a second left-side master gate drive unit; a gate drive signal output terminal labeled Gout-ML2 of a second left-side main gate drive unit GML 2;
labeled GMR2, a second right-side main gate drive unit; labeled Gout-MR2 is the gate drive signal output of the second right-side main gate drive unit GMR 2.
The driving load compensation unit according to the embodiment of the present invention is not shown in fig. 3.
In practical operation, when the driving load compensation unit according to the embodiment of the present invention is used to perform load compensation on the first left main gate driving unit disposed in the first sub-display region 301, the first switching module included in the rc load subunit is connected to the right end of the first left gate line, and the left end of the first left gate line is connected to Gout-FL 1;
when the driving load compensation unit according to the embodiment of the present invention is used to perform load compensation on the second left main gate driving unit disposed in the first sub-display region 301, the first switch module included in the rc load sub-unit is connected to the right end of the second left gate line, and the left end of the second left gate line is connected to Gout-FL 2;
when the driving load compensation unit according to the embodiment of the present invention is used to perform load compensation on the first right main gate driving unit disposed in the second sub-display area 302, the first switch module included in the resistance-capacitance load sub-unit is connected to the left end of the first right gate line, and the right end of the first right gate line is connected to Gout-FR 1;
when the driving load compensation unit according to the embodiment of the present invention is used to perform load compensation on the second right main gate driving unit disposed in the second sub-display area 302, the first switch module included in the rc load sub-unit is connected to the left end of the second right gate line, and the right end of the second right gate line is connected to Gout-FR 2.
Preferably, the driving load compensation unit according to the embodiment of the present invention may further include: the brightness detection subunit is used for detecting first brightness of one sub-pixel unit in the row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detecting second brightness of one sub-pixel unit in the main display area under the preset gray scale, and transmitting the first brightness and the second brightness to the load compensation control subunit;
the load compensation control subunit is specifically configured to generate the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness, so that a difference between the first brightness and the second brightness is within a predetermined brightness difference range, and thus the first brightness and the second brightness are consistent, and uniform display is achieved.
In practice, the load compensation control subunit may include N load compensation control signal output terminals;
the load compensation control subunit is further configured to output the first load compensation control signal through a first load compensation control signal output end, and output the nth load compensation control signal through an nth load compensation control signal output end;
the first switch module includes: a control end of the first switch element is connected with the first load compensation control signal output end, a first end of the first switch element is connected with a second end of the grid line, and a second end of the first switch element is connected with a second end of the first resistance-capacitance load module;
the nth switching module includes: and the control end of the nth switch element is connected with the nth load compensation control signal output end, the first end of the nth switch element is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch element is connected with the second end of the nth resistance-capacitance load module.
In a specific implementation, the first switch element may be composed of a PMOS (p-channel Metal Oxide Semiconductor) field effect transistor device, an NMOS (n-channel Metal Oxide Semiconductor) field effect transistor device, or a CMOS (Complementary Metal Oxide Semiconductor) field effect transistor device.
Specifically, the first resistance-capacitance load module may include a first compensation resistor and a first compensation capacitor;
the first end of the first compensation resistor is connected with the first end of the second switch module, and the second end of the first compensation resistor is connected with the second end of the first switch module;
the first end of the first compensation capacitor is connected with the first end of the first compensation resistor, and the second end of the first compensation capacitor is connected with the fixed voltage end;
the nth resistance-capacitance load module comprises an nth compensation resistor and an nth compensation capacitor;
the first end of the nth compensation resistor is connected with the first end of the (n + 1) th switch module, and the second end of the nth compensation resistor is connected with the second end of the nth switch module;
and the first end of the nth compensation capacitor is connected with the first end of the nth compensation resistor, and the second end of the nth compensation capacitor is connected with the fixed voltage end.
In practical operation, the fixed voltage terminal may be an equivalent ground terminal or a common electrode terminal (the common electrode terminal is used for outputting the common electrode voltage VCOM).
The driving load compensation unit according to the present invention is described below with an embodiment.
As shown in fig. 4, the second embodiment of the driving load compensation unit according to the present invention is applied to the left sub-pixel unit of the first row in the first sub-display region in fig. 3; the first row of left sub-pixel units comprises P left sub-pixel units; p is an integer greater than 3;
in fig. 4, reference numeral GFL1 is the first left side sub-gate driving unit, and reference numeral Gout-FL1 is the gate driving signal output Gout-FL1 of the first left side sub-gate driving unit GFL 1;
a first equivalent load resistor labeled R11 corresponding to the first left-side sub-pixel from left to right in the first row of left-side sub-pixel cells, and a first equivalent load capacitor labeled C11 corresponding to the first left-side sub-pixel from left to right in the first row of left-side sub-pixel cells;
the first equivalent load resistor R11 is an equivalent resistor between the left end of the first row of left gate lines and the first connection point D1, and the first equivalent load capacitor C11 is an equivalent capacitor between the first connection point D1 and the equivalent ground GND; the first connection point D1 is a connection point between the first left sub-pixel unit and the first row of left gate lines;
the left end of the grid line on the left side of the first row is connected with Gout-FL 1;
a second equivalent load resistor, denoted by R12, corresponding to the second left-hand sub-pixel from left to right in the first row of left-hand sub-pixel cells, and a second equivalent load capacitor, denoted by C12, corresponding to the second left-hand sub-pixel from left to right in the first row of left-hand sub-pixel cells;
the second equivalent load resistor R12 is an equivalent resistor between the first connection point D1 and a second connection point D2, the second equivalent load capacitor C12 is an equivalent capacitor between the second connection point D2 and an equivalent ground GND, and the second connection point D2 is a connection point between the second left-side subpixel unit and the left gate line of the first row;
a pth equivalent load resistor denoted by R1P corresponding to the pth left sub-pixel from left to right in the first row of left sub-pixel units, and a second equivalent load capacitor denoted by C12 corresponding to the second left sub-pixel from left to right in the first row of left sub-pixel units;
the pth equivalent load resistor R1P is an equivalent resistor between the pth connection point (not shown in fig. 4) and the pth connection point DP, the pth equivalent load capacitor C1P is an equivalent capacitor between the pth connection point DP and the equivalent ground terminal GND, and the pth connection point DP is a connection point between the pth left sub-pixel unit and the first row left gate line; the P-1 connection point (not shown in FIG. 4) is a connection point between the P-1 th left sub-pixel unit and the first row left gate line;
in actual operation, the pth connection point DP may be connected to the right end of the left gate line of the first row;
the second embodiment of the driving load compensation unit according to the present invention includes a load compensation control subunit (not shown in fig. 4) and a resistance-capacitance load subunit;
the resistance-capacitance load subunit comprises a first switch module 2011, a first resistance-capacitance load module 2012, a second switch module 2021, a second resistance-capacitance load module 2022, a third switch module 2031, a third resistance-capacitance load module 2032, a fourth switch module 2041, a fourth resistance-capacitance load module 2042, a fifth switch module 2051 and a fifth resistance-capacitance load module 2052;
the first switching module 2011 includes a first switching element K1;
the second switching module 2021 comprises a second switching element K2;
the third switching module 2031 comprises a third switching element K3;
the fourth switching module 2041 comprises a fourth switching element K4;
the fifth switch module 2051 comprises a fifth switching element K5; the first resistance-capacitance load module 2012 comprises a first compensation resistor RB1 and a first compensation capacitor CB 1;
the second resistor-capacitor load module 2022 comprises a second compensation resistor RB2 and a second compensation capacitor CB 2;
the third rc load module 2032 comprises a third compensation resistor RB3 and a third compensation capacitor CB 3;
the fourth rc load module 2042 includes a fourth compensation resistor RB4 and a fourth compensation capacitor CB 4;
the fifth resistance-capacitance load module 2052 comprises a fifth compensation resistor RB5 and a fifth compensation capacitor CB 5;
a first end of K1 is connected to the pth connection point DP, and a second end of K1 is connected to a second end of RB 1;
a first end of K2 is connected to a first end of RB1, and a second end of K2 is connected to a second end of RB 2;
a first end of K3 is connected to a first end of RB2, and a second end of K3 is connected to a second end of RB 3;
a first end of K4 is connected to a first end of RB3, and a second end of K4 is connected to a second end of RB 4;
a first end of K5 is connected to a first end of RB4, and a second end of K5 is connected to a second end of RB 5;
in fig. 4, denoted by GND is an equivalent ground terminal;
a first terminal of the CB1 is connected with a first terminal of the RB1, and a second terminal of the CB1 is connected with an equivalent ground terminal GND;
a first terminal of the CB2 is connected with a first terminal of the RB2, and a second terminal of the CB2 is connected with an equivalent ground terminal GND;
a first terminal of the CB3 is connected with a first terminal of the RB3, and a second terminal of the CB3 is connected with an equivalent ground terminal GND;
a first terminal of the CB4 is connected with a first terminal of the RB4, and a second terminal of the CB4 is connected with an equivalent ground terminal GND;
a first terminal of the CB5 is connected with a first terminal of the RB5, and a second terminal of the CB5 is connected with an equivalent ground terminal GND;
the control terminal of K1, the control terminal of K2, the control terminal of K3, the control terminal of K4 and the control terminal of K5 are respectively connected with the load compensation control subunit (not shown in FIG. 4).
In fig. 4, the equivalent ground terminal GND may be replaced with a common electrode terminal for outputting a common electrode voltage.
In the second embodiment of the driving load compensation unit shown in fig. 4, when the load compensation control subunit operates, the load compensation control subunit first selects a corresponding load value to be compensated according to a difference between the actual brightness of the main display area and the brightness of the first sub display area (by optically measuring a brightness difference between the actual brightness of the main display area and the actual brightness of the first sub display area), and outputs a 5-bit selection signal control code, for example, when two load compensation units are required to be accessed, the signal control code is 00111. The selection signal control code of each bit controls the on or off of K1, K2, K3, K4 and K5 through a load compensation selection signal line, the corresponding switch element is turned on when the selection signal control code is 0, and the corresponding switch element is turned off when the selection signal control code is 1; when a switching element is turned on, the corresponding rc load module will be connected to the gate driving signal output terminal Gout-FL1 (as shown in fig. 3) of the first left side sub-gate driving unit GFL1, so as to increase the equivalent load at the output terminal of the first left side sub-gate driving unit GFL 1; when the selection signal control code is 00111, the corresponding equivalent load compensation schematic diagram is shown in fig. 5 (in fig. 5, the equivalent ground terminal GND may be replaced by a common electrode terminal, and the common electrode terminal is used for outputting a common electrode voltage). The number of the connected resistance-capacitance load modules is different, the total equivalent load output by the GOA changes, the waveform output by the GOA also changes, the actual charging time of the first auxiliary display area further changes, and the actual brightness of the first auxiliary display area is also adjusted. By adjusting the selection signal control code, the load compensation value with the best effect in actual display is found out (the difference of the optical measurement values of the main screen and the auxiliary screen is within an acceptable range), and the problem that the fixed load compensation value is inaccurate due to the process fluctuation of the display substrate can be solved. The more the number of the connected resistance-capacitance load modules is, the more the number of the control code bits of the adjustable selection signal is, the higher the GOA load compensation precision is, and the more finely the process fluctuation of different display screens can be compensated.
In practical operation, the rc load compensation unit according to the embodiment of the invention can also be applied to any row of sub-pixel units in the second sub-display region, and can also be applied to any row of sub-pixel units in the first sub-display region.
In the embodiment shown in fig. 4, taking an example that the rc load sub-unit includes 5 switch modules and 5 rc load modules as an illustration, in actual operation, the rc load sub-unit may include C switch modules and C rc load modules, where C may be any integer greater than 1, and a value of C is not limited herein.
The driving load compensation method according to the embodiment of the present invention is applied to the driving load compensation unit, and includes:
the load compensation control subunit generates a first load compensation control signal and an nth load compensation control signal, transmits the first load compensation control signal to the control end of the first switch module, and transmits the nth load compensation control signal to the control end of the nth switch module;
under the control of the first load compensation control signal, the first switch module controls to switch on or off the connection between the first end of the first switch module and the second end of the first switch module;
the nth switch module is used for controlling to switch on or off the connection between the first end of the nth switch module and the second end of the nth switch module under the control of the nth load compensation control signal;
n is an integer greater than 1; n is an integer greater than 1 and less than or equal to N.
Specifically, the driving load compensation unit may further include a luminance detection subunit;
before the step of generating the first load compensation control signal and the nth load compensation control signal by the load compensation control subunit, the driving load compensation method further includes: the brightness detection subunit detects first brightness of a sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detects second brightness of a sub-pixel unit in the main display area under the preset gray scale, and transmits the first brightness and the second brightness to the load compensation control subunit;
the step of generating the nth load compensation control signal by the load compensation control subunit specifically includes: the load compensation control subunit generates the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness;
the sub-pixel units in the row are driven by a sub-gate driving unit included in the sub-gate driving sub-unit, and the gate driving signal output end of the sub-gate driving unit is connected with the resistance-capacitance load sub-unit included in the driving load compensation unit.
Preferably, the load compensation control subunit may generate a number of the nth load compensation control signals according to the first brightness and the second brightness; a is an integer greater than 1;
the driving load compensation method further includes:
in the a-th test time period, the load compensation control subunit transmits an a-th load compensation control signal to the control end of the n-th switch module, and the brightness detection subunit detects third brightness of one sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under the preset gray scale and transmits the third brightness to the load compensation control subunit; a is a positive integer less than or equal to A;
the load compensation control subunit compares the third brightness with the second brightness, and selects an nth load compensation control signal corresponding to the third brightness closest to the second brightness as an nth display load compensation control signal.
Preferably, the load compensation control subunit may generate at least two nth load compensation control signals according to the first brightness and the second brightness, and select an optimal nth load compensation control signal as the nth display load compensation control signal, so that the adjusted brightness of the secondary display area is closest to the brightness of the primary display area.
The driving load compensation module is applied to a display device, the display device comprises a display panel and a grid driving circuit, and the display panel is divided into a main display area and an auxiliary display area; m rows of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an mth auxiliary grid driving unit included in the auxiliary grid driving sub-circuit is connected with an mth grid line, and the mth grid line is connected with an mth row of sub-pixel units arranged in the auxiliary display area; the first end of the mth grid line is connected with the grid driving signal output end of the mth auxiliary grid driving unit; m is a positive integer; m is a positive integer less than or equal to M; the driving load compensation module comprises M driving load compensation units;
the first end of the first switch module in the resistance-capacitance load sub-unit included in the mth driving load compensation unit is connected with the second end of the mth grid line.
The display device provided by the embodiment of the invention comprises the driving load compensation module.
In a specific implementation, the display device of the present invention may further include a display panel and a gate driving circuit;
the display panel is divided into a main display area and a sub display area;
the grid driving circuit comprises a main grid driving sub-circuit and an auxiliary grid driving sub-circuit;
the auxiliary grid driving sub-circuit comprises M levels of auxiliary grid driving units, and the auxiliary grid driving unit at one level is used for driving a row of sub-pixel units arranged in the auxiliary display area; m is a positive integer;
the main grid electrode driving sub-circuit comprises a plurality of stages of main grid electrode driving units, and the main grid electrode driving unit at one stage is used for driving a row of sub-pixel units arranged in the main display area;
the number of the sub-pixel units included in the row of sub-pixel units arranged in the auxiliary display area is not equal to the number of the sub-pixel units included in the row of sub-pixel units arranged in the main display area.
In the first specific embodiment and the second specific embodiment provided above in the present invention, the number of sub-pixel units included in each row of sub-pixel units provided in each sub-display region is smaller than the number of sub-pixel units included in each row of sub-pixel units provided in the main display region, but is only used for example; in actual operation, the number of sub-pixel units included in each row of sub-pixel units provided in each sub-display region may be larger than the number of sub-pixel units included in each row of sub-pixel units provided in the main display region.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A driving load compensation unit is applied to a display device, the display device comprises a display panel and a grid driving circuit, the display panel is divided into a main display area and an auxiliary display area; at least one row of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an auxiliary grid driving unit of the auxiliary grid driving sub-circuit is connected with a grid line arranged in the auxiliary display area, and the grid line is connected with a row of sub-pixel units arranged in the auxiliary display area; the first end of the grid line is connected with the grid driving signal output end of the auxiliary grid driving unit; characterized in that the driving load compensation unit comprises a load compensation control subunit and a resistance-capacitance load subunit, wherein,
the resistance-capacitance load subunit comprises N switch modules and N resistance-capacitance load modules; n is an integer greater than 1;
the first end of the nth switch module is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch module is connected with the second end of the nth resistance-capacitance load module; n is an integer greater than 1 and less than or equal to N;
the first end of the first switch module is connected with the second end of the grid line; the second end of the first switch module is connected with the second end of the first resistance-capacitance load module;
the control end of the nth switch module and the control end of the first switch module are both connected with the load compensation control subunit;
the load compensation control subunit is configured to generate a first load compensation control signal and an nth load compensation control signal, transmit the first load compensation control signal to the control end of the first switch module, and transmit the nth load compensation control signal to the control end of the nth switch module;
the first switch module is used for controlling to switch on or off the connection between the first end of the first switch module and the second end of the first switch module under the control of the first load compensation control signal;
the nth switch module is used for controlling to switch on or off the connection between the first end of the nth switch module and the second end of the nth switch module under the control of the nth load compensation control signal;
the driving load compensation unit further includes: the brightness detection subunit is used for detecting first brightness of one sub-pixel unit in the row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detecting second brightness of one sub-pixel unit in the main display area under the preset gray scale, and transmitting the first brightness and the second brightness to the load compensation control subunit;
the load compensation control subunit is specifically configured to generate the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness.
2. The driving load compensation unit of claim 1, wherein the load compensation control subunit comprises N load compensation control signal outputs;
the load compensation control subunit is further configured to output the first load compensation control signal through a first load compensation control signal output end, and output the nth load compensation control signal through an nth load compensation control signal output end;
the first switch module includes: a control end of the first switch element is connected with the first load compensation control signal output end, a first end of the first switch element is connected with a second end of the grid line, and a second end of the first switch element is connected with a second end of the first resistance-capacitance load module;
the nth switching module includes: and the control end of the nth switch element is connected with the nth load compensation control signal output end, the first end of the nth switch element is connected with the first end of the (n-1) th resistance-capacitance load module, and the second end of the nth switch element is connected with the second end of the nth resistance-capacitance load module.
3. The driving load compensation unit of claim 1, wherein the first resistance-capacitance load module comprises a first compensation resistor and a first compensation capacitor;
the first end of the first compensation resistor is connected with the first end of the second switch module, and the second end of the first compensation resistor is connected with the second end of the first switch module;
the first end of the first compensation capacitor is connected with the first end of the first compensation resistor, and the second end of the first compensation capacitor is connected with the fixed voltage end;
the nth resistance-capacitance load module comprises an nth compensation resistor and an nth compensation capacitor;
the first end of the nth compensation resistor is connected with the first end of the (n + 1) th switch module, and the second end of the nth compensation resistor is connected with the second end of the nth switch module;
and the first end of the nth compensation capacitor is connected with the first end of the nth compensation resistor, and the second end of the nth compensation capacitor is connected with the fixed voltage end.
4. A driving load compensation method applied to the driving load compensation unit according to any one of claims 1 to 3, the driving load compensation method comprising:
the load compensation control subunit generates a first load compensation control signal and an nth load compensation control signal, transmits the first load compensation control signal to the control end of the first switch module, and transmits the nth load compensation control signal to the control end of the nth switch module;
under the control of the first load compensation control signal, the first switch module controls to switch on or off the connection between the first end of the first switch module and the second end of the first switch module;
the nth switch module is used for controlling to switch on or off the connection between the first end of the nth switch module and the second end of the nth switch module under the control of the nth load compensation control signal;
n is an integer greater than 1; n is an integer greater than 1 and less than or equal to N;
the driving load compensation unit further comprises a brightness detection subunit;
before the step of generating the first load compensation control signal and the nth load compensation control signal by the load compensation control subunit, the driving load compensation method further includes: the brightness detection subunit detects first brightness of a sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under a preset gray scale, detects second brightness of a sub-pixel unit in the main display area under the preset gray scale, and transmits the first brightness and the second brightness to the load compensation control subunit;
the step of generating the nth load compensation control signal by the load compensation control subunit specifically includes: the load compensation control subunit generates the first load compensation control signal and the nth load compensation control signal according to the first brightness and the second brightness;
the sub-pixel units in the row are driven by a sub-gate driving unit included in the sub-gate driving sub-unit, and the gate driving signal output end of the sub-gate driving unit is connected with the resistance-capacitance load sub-unit included in the driving load compensation unit.
5. The driving load compensation method according to claim 4, wherein the number of the nth load compensation control signals generated by the load compensation control subunit according to the first luminance and the second luminance is a; a is an integer greater than 1;
the driving load compensation method further includes:
in the a-th test time period, the load compensation control subunit transmits an a-th load compensation control signal to the control end of the n-th switch module, and the brightness detection subunit detects third brightness of one sub-pixel unit in a row of sub-pixel units arranged in the auxiliary display area under the preset gray scale and transmits the third brightness to the load compensation control subunit; a is a positive integer less than or equal to A;
the load compensation control subunit compares the third brightness with the second brightness, and selects an nth load compensation control signal corresponding to the third brightness closest to the second brightness as an nth display load compensation control signal.
6. A driving load compensation module is applied to a display device, the display device comprises a display panel and a grid driving circuit, and the display panel is divided into a main display area and an auxiliary display area; m rows of sub-pixel units are arranged in the auxiliary display area; the grid driving circuit comprises an auxiliary grid driving sub-circuit, an mth auxiliary grid driving unit included in the auxiliary grid driving sub-circuit is connected with an mth grid line, and the mth grid line is connected with an mth row of sub-pixel units arranged in the auxiliary display area; the first end of the mth grid line is connected with the grid driving signal output end of the mth auxiliary grid driving unit; m is a positive integer; m is a positive integer less than or equal to M; the driving load compensation module comprises M driving load compensation units according to any one of claims 1 to 3;
the first end of the first switch module in the resistance-capacitance load sub-unit included in the mth driving load compensation unit is connected with the second end of the mth grid line.
7. A display device comprising the driving load compensation module of claim 6.
8. The display device according to claim 7, further comprising a display panel and a gate driver circuit;
the display panel is divided into a main display area and a sub display area;
the grid driving circuit comprises a main grid driving sub-circuit and an auxiliary grid driving sub-circuit;
the auxiliary grid driving sub-circuit comprises M levels of auxiliary grid driving units, and the auxiliary grid driving unit at one level is used for driving a row of sub-pixel units arranged in the auxiliary display area; m is a positive integer;
the main grid electrode driving sub-circuit comprises a plurality of stages of main grid electrode driving units, and the main grid electrode driving unit at one stage is used for driving a row of sub-pixel units arranged in the main display area;
the number of the sub-pixel units included in the row of sub-pixel units arranged in the auxiliary display area is not equal to the number of the sub-pixel units included in the row of sub-pixel units arranged in the main display area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069247.7A CN108269516B (en) | 2018-01-24 | 2018-01-24 | Driving load compensation unit, method and module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069247.7A CN108269516B (en) | 2018-01-24 | 2018-01-24 | Driving load compensation unit, method and module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108269516A CN108269516A (en) | 2018-07-10 |
| CN108269516B true CN108269516B (en) | 2022-01-25 |
Family
ID=62776548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810069247.7A Active CN108269516B (en) | 2018-01-24 | 2018-01-24 | Driving load compensation unit, method and module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108269516B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782833B (en) | 2018-07-30 | 2021-09-21 | 成都京东方光电科技有限公司 | Display panel and display device |
| CN109272971A (en) * | 2018-11-14 | 2019-01-25 | 成都中电熊猫显示科技有限公司 | Method of adjustment, device and the screen driving plate of panel luminance |
| CN109637485B (en) * | 2019-01-24 | 2021-02-02 | 合肥京东方光电科技有限公司 | Display panel, control method thereof and display device |
| CN109637429B (en) * | 2019-02-18 | 2022-03-25 | 昆山龙腾光电股份有限公司 | Grid driving circuit and display device thereof |
| CN109935193B (en) * | 2019-04-25 | 2022-06-03 | 京东方科技集团股份有限公司 | Gate drive circuit and drive method thereof, array substrate, display panel and device |
| CN110349543A (en) * | 2019-07-25 | 2019-10-18 | 武汉华星光电技术有限公司 | Liquid crystal display device and its luminance compensation method |
| CN113077755A (en) * | 2020-01-06 | 2021-07-06 | 京东方科技集团股份有限公司 | Electroluminescent display panel, driving method thereof and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751790A (en) * | 2013-12-27 | 2015-07-01 | 乐金显示有限公司 | Organic electroluminescence display and driving method thereof |
| CN106782430A (en) * | 2017-01-17 | 2017-05-31 | 上海天马有机发光显示技术有限公司 | A kind of display panel brightness adjusting method and system |
| CN107610636A (en) * | 2017-10-30 | 2018-01-19 | 武汉天马微电子有限公司 | A kind of display panel and display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257754A (en) * | 2004-03-09 | 2005-09-22 | Pioneer Electronic Corp | Display apparatus |
| US10354578B2 (en) * | 2016-04-15 | 2019-07-16 | Samsung Display Co., Ltd. | Display device |
| CN106448587B (en) * | 2016-10-08 | 2019-09-20 | 京东方科技集团股份有限公司 | Display panel and its manufacturing method, display device |
| CN106548755B (en) * | 2016-12-07 | 2019-11-26 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
| CN106991990A (en) * | 2017-05-27 | 2017-07-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN107481669A (en) * | 2017-09-08 | 2017-12-15 | 武汉天马微电子有限公司 | A kind of display panel and display device |
-
2018
- 2018-01-24 CN CN201810069247.7A patent/CN108269516B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751790A (en) * | 2013-12-27 | 2015-07-01 | 乐金显示有限公司 | Organic electroluminescence display and driving method thereof |
| CN106782430A (en) * | 2017-01-17 | 2017-05-31 | 上海天马有机发光显示技术有限公司 | A kind of display panel brightness adjusting method and system |
| CN107610636A (en) * | 2017-10-30 | 2018-01-19 | 武汉天马微电子有限公司 | A kind of display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108269516A (en) | 2018-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108269516B (en) | Driving load compensation unit, method and module and display device | |
| US10643563B2 (en) | Display device | |
| US10403218B2 (en) | Mura compensation circuit and method, driving circuit and display device | |
| EP3185237B1 (en) | Pixel circuit, organic electroluminescent display panel and display apparatus | |
| KR101167314B1 (en) | Liquid Crystal Display device | |
| US8107586B2 (en) | Shift register and display device including the same | |
| US9865217B2 (en) | Method of driving display panel and display apparatus | |
| US20080309597A1 (en) | Driving apparatus for a liquid crystal display and liquid crystal display including the same | |
| CN101587700B (en) | Liquid crystal display and method for driving same | |
| KR20150051462A (en) | Liquid crystal display and driving method thereof | |
| US20080266231A1 (en) | Digital-to-analog converter circuit including adder drive circuit and display | |
| US8878763B2 (en) | Display apparatus | |
| US20110102404A1 (en) | Low Power Driving Method for a Display Panel and Driving Circuit Therefor | |
| US20160071479A1 (en) | Driver circuit | |
| US20080158126A1 (en) | Liquid crystal display and driving method thereof | |
| JP2023099724A (en) | Level voltage generation circuit, data driver, and display device | |
| US9007098B1 (en) | Current mode DVR or PVCOM with integrated resistors | |
| CN101499233A (en) | Display device and electronic apparatus | |
| US9460673B2 (en) | LCD panel having overvoltage driving table and method for driving the LCD panel | |
| US9536497B2 (en) | Gamma voltage driving circuit, source driving module, and liquid crystal panel | |
| KR100406616B1 (en) | Liquid crystal display device | |
| KR101903019B1 (en) | Display Device for Compensating Resistance Non-Uniform in Connection Leads | |
| CN112242127B (en) | Output circuit of driving device | |
| CN108492788B (en) | Liquid crystal display control device | |
| KR20080002683A (en) | D/a converter circuit, liquid crystal driving circuit, and liquid crystal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |