CN107316620B - display panel, display device and method for adjusting crosstalk of display panel - Google Patents
display panel, display device and method for adjusting crosstalk of display panel Download PDFInfo
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- CN107316620B CN107316620B CN201710733913.8A CN201710733913A CN107316620B CN 107316620 B CN107316620 B CN 107316620B CN 201710733913 A CN201710733913 A CN 201710733913A CN 107316620 B CN107316620 B CN 107316620B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
Abstract
The invention discloses display panels, display devices and a method for adjusting crosstalk of the display panels, which are used for solving the problems that parameters of the display panels can only be adjusted by manual means to adjust the crosstalk, too much manual operation is needed and the display panels cannot be accurately and efficiently adjusted in the prior art.
Description
Technical Field
The invention relates to the technical field of display, in particular to display panels, a display device and a method for adjusting crosstalk of the display panels.
Background
The Crosstalk is that is an important index for evaluating the quality of a display panel, and mainly means that the original display state of a certain pixel of a display is affected by the state change of other pixels or signal electrodes, and the factors causing the Crosstalk include, for example, a driving circuit, Ioff (leakage current), coupling capacitance between a data line and a pixel electrode, and a disturbed electric field, wherein the leakage current is that is an important factor for causing the Crosstalk (CT).
Crosstalk caused by leakage current and other reasons can cause interference influence on signals in the display panel, so that display distortion of the signals is caused, and accordingly the display effect of the display panel is influenced.
In summary, the conventional techniques can only adjust the parameters of the display panel by manual means to adjust the crosstalk, and there are too many manual operations and the display panel cannot be adjusted accurately and efficiently.
Disclosure of Invention
The invention provides display panels, a display device and a method for adjusting crosstalk of the display panels, which are used for solving the problems that in the prior art, crosstalk can be adjusted only by manually adjusting parameters of the display panels, too many manual operations are needed, and the display panels cannot be accurately and efficiently adjusted.
The kinds of display panels provided by the embodiment of the invention comprise a th substrate and a crosstalk adjusting module, wherein the light incident side of the th substrate is provided with at least photosensitive elements, and the th substrate is a substrate opposite to an array substrate in the display panel;
the photosensitive element is used for determining the brightness value of the position where the photosensitive element is located and sending the determined brightness value to the crosstalk adjusting module;
the crosstalk adjusting module is used for determining a crosstalk value corresponding to the photosensitive element according to at least two brightness values sent by the photosensitive elements, and adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the photosensitive element and a preset crosstalk condition to adjust the crosstalk of the display panel.
Optionally, the crosstalk adjustment module is located at an edge of the th substrate.
Optionally, the photosensitive element is on the black matrix layer on the light incident side of the th substrate.
The display devices provided by the embodiment of the invention comprise the display panel provided by the embodiment of the invention.
methods for adjusting crosstalk of the display panel provided by the embodiment of the present invention include:
determining the brightness value of the detection position of the light incident side of an th substrate, wherein the th substrate is the opposite substrate of the array substrate in the display panel;
and determining a crosstalk value corresponding to the detection position according to at least two brightness values of the detection positions, and adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust the crosstalk of the display panel.
Optionally, determining the brightness value of the detection position of the light incident side of the th substrate includes:
determining a th brightness value of the inspection position of the light incident side of the th substrate when the th inspection screen is displayed, and determining a second brightness value of the inspection position when the second inspection screen is displayed;
the th inspection picture and the second inspection picture have the same pattern in the same target display areas, the th substrate comprises a plurality of target display areas, each target display area comprises at least inspection positions, the th substrate has at least calibration display areas outside the target display areas, and the th inspection picture and the second inspection picture have different patterns in the same calibration display areas.
Optionally, determining the crosstalk value corresponding to the detection position according to at least two brightness values of the detection positions includes:
and determining crosstalk values corresponding to the detection positions according to the th brightness value and the second brightness value of the same detection positions.
Optionally, adjusting a turn-off voltage of a thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust crosstalk of the display panel, including:
and after determining that the crosstalk condition is not met according to the crosstalk value corresponding to the detection position, adjusting the turn-off voltage of the thin film transistor of the array substrate to adjust the crosstalk of the display panel.
Alternatively, whether the crosstalk condition is satisfied is determined by:
judging whether the crosstalk values corresponding to all the detection positions on the th substrate are smaller than a preset crosstalk threshold value, and if so, determining that a crosstalk condition is met;
otherwise, determining that the crosstalk condition is not satisfied.
Optionally, adjusting the turn-off voltage of the thin film transistor of the array substrate to adjust the crosstalk of the display panel includes:
determining the adjustment amplitude according to the preset corresponding relation between the times of adjusting the closing voltage and the adjustment amplitude;
and adjusting the turn-off voltage of the thin film transistor according to the adjustment amplitude to adjust the crosstalk of the display panel.
According to the display panel provided by the embodiment of the invention, the light-sensitive elements on the light-in side of the th substrate can determine the brightness values, the crosstalk adjusting module determines the crosstalk values corresponding to the light-sensitive elements according to at least two brightness values sent by light-sensitive elements, and adjusts the turn-off voltage of the thin film transistors associated with the array in the display panel according to the crosstalk values corresponding to the light-sensitive elements and the preset crosstalk condition to adjust the crosstalk of the display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram () of display panels according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a side view structure of display panels according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram (two) of display panels according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram (three) of display panels according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram (four) of display panels according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating exemplary steps of a method for adjusting crosstalk of a display panel according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating methods for adjusting crosstalk of a display panel according to an embodiment of the present invention.
Detailed Description
For purposes of clarity, technical solutions and advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings , and it is obvious that the described embodiment is only a partial embodiment of the , rather than a complete embodiment.
Referring to fig. 1, a display panel according to an embodiment of the invention is illustrated, which includes an th substrate 101 and a crosstalk adjustment module 102, wherein the th substrate 101 has at least photosensors 103 on a light incident side thereof;
the photosensitive element 103 is configured to determine a brightness value of a position where the photosensitive element 103 is located, and send the determined brightness value to the crosstalk adjustment module 102;
the crosstalk adjusting module 102 is configured to determine a crosstalk value corresponding to the photosensitive element 103 according to at least two brightness values sent by the photosensitive elements 103, and adjust a turn-off voltage of a thin film transistor of the array substrate according to the crosstalk value corresponding to the photosensitive element and a preset crosstalk condition to adjust crosstalk of the display panel.
In the embodiment of the present invention, the crosstalk adjusting module 102 may determine a crosstalk value according to at least two brightness values determined by the photosensitive element 103, and adjust the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value and a preset crosstalk condition to adjust the crosstalk of the display panel, where the th substrate 101 is a substrate opposite to the array substrate in the display panel, and since the leakage current of the thin film transistor may change when the turn-off voltage of the thin film transistor changes, the crosstalk caused by the leakage current may change.
In embodiments of the present invention, the photosensitive element may be a semiconductor photosensitive element, such as a polysilicon semiconductor photosensitive element; the crosstalk adjustment module may be an Integrated Circuit (IC).
As shown in fig. 2, the th substrate 101 in the embodiment of the present invention is disposed opposite to the Array substrate 201, wherein a liquid crystal layer 202 may be disposed between the th substrate 101 and the Array substrate 201, and a side of the th substrate 101 adjacent to the liquid crystal layer 202 is a light-in side, the crosstalk adjusting module 102 is configured to receive at least two luminance values sent by the photosensitive element 103 on the light-in side of the th substrate 101 and adjust an off-voltage of a thin film transistor in the Array substrate 201, for example, as shown in fig. 2, the crosstalk adjusting module 102 adjusts an off-voltage signal 204 of the thin film transistor input to the Array substrate 201 through an output signal 203, so as to adjust the off-voltage of the thin film transistor, wherein the th substrate may be a Color Filter (CF) substrate, a Color Filter Array (COA, Color-Filter Array) substrate, or an opposite substrate to another Array substrate.
In the embodiment of the present invention, the photosensitive element is used to determine the brightness value of the position where the photosensitive element is located, and the following describes a method for determining the crosstalk value in the embodiment of the present invention:
in an embodiment of the present invention, the photosensor is configured to detect a luminance value of a position where the photosensor is located and send the luminance value to the crosstalk adjustment module, so that the crosstalk adjustment module determines a crosstalk value corresponding to the photosensor according to at least two luminance values, for example, the photosensor detects 0 th luminance of the position where the photosensor is located when the th substrate displays the th inspection picture, and detects second luminance of the position where the photosensor is located when the 1 th substrate displays the second inspection picture, and then sends the 2 th luminance and the second luminance detected to the crosstalk adjustment module, where the th inspection picture and the second inspection picture have the same pattern in the same target display areas, the th substrate includes a plurality of target display areas, each target display area includes at least inspection positions, the th substrate has at least calibration display areas outside the target display areas, and the th inspection picture and the second inspection picture have different patterns in the same calibration display areas.
By setting the th detection picture and the second detection picture and determining the th brightness value and the second brightness value by the photosensitive element by the above method, it can be ensured that the difference between the th brightness value and the second brightness value determined by the photosensitive element is caused only by crosstalk, and the accuracy of the crosstalk value of the photosensitive element determined by the crosstalk adjusting module according to the th brightness value and the second brightness value is higher at this moment.
In an embodiment of the present invention, the crosstalk adjustment module is configured to determine a crosstalk value according to the brightness value determined by the photosensitive element, for example, determine a crosstalk value corresponding to the photosensitive element according to the th brightness value and the second brightness value determined by the same photosensitive elements.
The crosstalk value corresponding to the light sensitive element can be determined according to the following formula:
wherein C is the corresponding crosstalk value of the photosensitive element, L1 th brightness value, L, determined for the light-sensitive element2A second luminance value determined for the light sensitive element.
Equation can also be modified to equation two:
wherein C is the corresponding crosstalk value of the photosensitive element, L1 th brightness value, L, determined for the light-sensitive element2A second luminance value determined for the light sensitive element.
In the embodiment of the present invention, the crosstalk adjusting module needs to adjust the turn-off voltage of the thin film transistor according to the determined crosstalk value corresponding to the light sensitive element and the preset crosstalk condition, wherein the crosstalk adjusting module determines the crosstalk value corresponding to the light sensitive element on the th substrate, and determines whether the preset crosstalk condition is satisfied according to the crosstalk value corresponding to the light sensitive element, if not, the crosstalk adjusting module adjusts the turn-off voltage of the thin film transistor, otherwise, the turn-off voltage of the thin film transistor is neglected to be adjusted.
There are various methods for the crosstalk adjustment module to determine whether the preset crosstalk condition is satisfied, and two possible methods are listed below:
in the method , the crosstalk adjusting module determines crosstalk values corresponding to all photosensors on the substrate, and adjusts the turn-off voltage of the thin film transistor after a crosstalk value not less than (or greater than) a preset crosstalk threshold exists in the crosstalk values corresponding to all photosensors, where the crosstalk threshold may be 2% (or the crosstalk threshold may be other values, and a value of the crosstalk threshold may be adjusted according to actual detection requirements).
According to the method , the crosstalk adjustment module adjusts the turn-off voltage of the thin film transistor after determining that the crosstalk values corresponding to all the photosensors on the th substrate are greater than or equal to the crosstalk threshold, wherein possible implementations of the method are that the crosstalk adjustment module determines by the crosstalk values corresponding to all the photosensors on the th substrate, and the crosstalk adjustment module adjusts the turn-off voltage of the thin film transistor as long as the determined crosstalk values include a crosstalk value not less than the crosstalk threshold, even if the crosstalk adjustment module has not determined the crosstalk values corresponding to all the photosensors.
In a second method, after determining the crosstalk values corresponding to all the photosensors on the substrate, the crosstalk adjusting module determines an average crosstalk value of the crosstalk values corresponding to all the photosensors, and adjusts the turn-off voltage of the thin film transistor after determining that the average crosstalk value is not less than (or greater than) a preset crosstalk threshold.
According to the second method, the crosstalk adjusting module adjusts the turn-off voltage of the thin film transistor after determining that the average value of the crosstalk values corresponding to all the photosensitive elements on the th substrate is greater than or equal to the crosstalk threshold value.
The above method for determining whether the predetermined crosstalk condition is satisfied by the crosstalk adjustment module is only an example, and other methods that can achieve the above effects and are available to those skilled in the art without creative efforts shall also fall within the scope of the present application.
In the embodiment of the present invention, the crosstalk adjusting module may adjust the turn-off voltage of the thin film transistor by the following method: and determining the adjustment amplitude according to the preset corresponding relation between the times of adjusting the turn-off voltage and the adjustment amplitude, and adjusting the turn-off voltage according to the adjustment amplitude.
For example, a corresponding relationship table of the number of times of adjusting the turn-off voltage and the adjustment amplitude may be preset, as shown in table 1, the number of times of adjusting the turn-off voltage may be the number of times of adjusting the turn-off voltage by the crosstalk adjustment module, if the turn-off voltage of the thin film transistor of the array substrate is adjusted for the th time currently, the number of times of adjusting the turn-off voltage is 0, and the corresponding adjustment amplitude is amplitude a, the crosstalk adjustment module adjusts the turn-off voltage of the thin film transistor according to the amplitude a on the basis of the current turn-off voltage.
| Adjusting the number of times of switching off the voltage | Adjustment amplitude (V (volt)) |
| 0 | Amplitude A |
| 1 | Amplitude B |
| 2 | Amplitude C |
| 3 | Amplitude D |
| …… | …… |
TABLE 1
For example, possible implementations of the crosstalk module adjusting the turn-off voltage are that the adjustment range is 0.1V when the turn-off voltage is adjusted times (the number of times of adjusting the turn-off voltage is 0), the adjustment range is-0.2V when the turn-off voltage is adjusted the second time, the adjustment range is 0.3V when the turn-off voltage is adjusted the third time, and the adjustment range is-0.4V … … when the turn-off voltage is adjusted the second time.
In addition, the corresponding relationship between the number of times of adjusting the turn-off voltage and the adjustment amplitude may also be set by other methods, for example, when the turn-off voltage is adjusted for the previous N times, the crosstalk adjustment module increases (or decreases) the voltage value of the preset step value based on the current turn-off voltage (i.e., the adjustment amplitude corresponding to the number of times of adjusting the turn-off voltage increases or decreases the preset step value each time the previous N times), when the turn-off voltage is adjusted for the N +1 times, the crosstalk adjustment module decreases (or increases) the voltage value (i.e., the voltage decreasing or increasing the preset step value based on the turn-off voltage before adjustment) of the preset step value based on the current turn-off voltage by (N +1) times, when the turn-off voltage is adjusted for the N +1 to 2N times, when the turn-off voltage is adjusted for the current turn-off voltage, N is a positive integer, for example, the preset step value is 0.1V, N is 3, when the turn-off voltage of the thin film transistor is adjusted for the fourth time, when the turn-off voltage of the thin film transistor is adjusted for to the third time, V is adjusted for the sixth time, and the turn-off voltage is adjusted for the sixth time, … ….
The above method for setting the adjustment range is only an example, and other methods available to those skilled in the art without creative efforts to achieve the above effects should also fall within the protection scope of the present application.
In the embodiment of the present invention, after the turn-off voltage of the thin film transistor is adjusted, the light sensitive element may determine the brightness value again and the crosstalk adjusting module may determine the crosstalk value of the light sensitive element, and then, according to the crosstalk value corresponding to the light sensitive element, if the crosstalk adjusting module determines that the crosstalk condition is satisfied according to the crosstalk value corresponding to the light sensitive element, the turn-off voltage of the thin film transistor is neglected to be adjusted.
Optionally, the crosstalk adjustment module is located at an edge of the th substrate.
In an embodiment of the present invention, the crosstalk adjusting module may be disposed at an edge of the th substrate.
Optionally, the photosensitive element is connected to the crosstalk adjustment module by indium tin oxide leads.
In an embodiment of the present invention, the photosensitive element may be connected to the crosstalk adjusting module through a lead, and the photosensitive element sends the determined brightness value to the crosstalk adjusting module through the lead after determining the brightness value, where the lead may be an Indium Tin Oxide (ITO) lead.
In the display panel shown in fig. 3, the crosstalk adjusting module 301 is located at the edge of the -th substrate 302, and a plurality of photosensitive elements 303 are disposed on the light incident side of the -th substrate 302, wherein the crosstalk adjusting module 301 and the photosensitive elements 303 are connected by ITO wires 304.
Optionally, the photosensitive element is a semiconductor photosensitive element.
In the embodiment of the invention, the photosensitive element can be a semiconductor photosensitive element, such as a cadmium sulfide, cadmium selenide or polysilicon photosensitive element, and the optical sensitivity of the semiconductor photosensitive element is higher, so that the accuracy of brightness detection can be improved, and the accuracy of determining the crosstalk value is improved.
Optionally, the projection of the photosensitive element on the th substrate is located in the non-pixel area of the th substrate.
In the embodiment of the invention, as shown in fig. 4, in order to prevent the photosensitive element from blocking the pixel display region 402 where the pixel of the th substrate 401 is located, the photosensitive element 403 may be disposed on a non-pixel region (for example, a region where a black matrix is located) outside the pixel display region 402, that is, a projection of the photosensitive element 403 on the th substrate 401 is located in the non-pixel region outside the pixel display region 402 of the th substrate 401.
Optionally, the photosensitive element is on the black matrix layer on the light incident side of the th substrate.
In an embodiment of the present invention, there are at least photosensors on the th substrate, wherein the photosensors may be located on a Black Matrix (BM) layer on the th substrate, for example, the photosensors for detecting brightness are formed by deposition on the Black Matrix layer on the light incident side of the th substrate.
Optionally, the output end of the crosstalk adjusting module is connected to a signal line of the turn-off voltage of the array substrate.
In the embodiment of the invention, the crosstalk adjusting module can adjust the turn-off voltage of the thin film transistor of the array substrate, wherein the output end of the crosstalk adjusting module can be connected with the signal line of the turn-off voltage of the array substrate, and the crosstalk adjusting module adjusts the turn-off voltage of the thin film transistor in the array substrate through the output electric signal when the turn-off voltage needs to be adjusted.
As shown in fig. 5, the display panels according to the embodiment of the invention include a th substrate 501 and a crosstalk adjustment module 502, the crosstalk adjustment module 502 is located at an edge of the th substrate, at least light-sensitive elements 503 are disposed on the black matrix layer on the light incident side of the th substrate 501, a projection of the light-sensitive elements 503 on the th substrate 501 is located in a non-pixel region outside the pixel display region 505 of the th substrate 501, the light-sensitive elements 503 are semiconductor light-sensitive elements, and the light-sensitive elements 503 are connected to the crosstalk adjustment module 502 through indium tin oxide wires 504.
Based on the same conception, the present invention further provides display devices, including the display panel provided in the embodiments of the present invention, where the display devices may be any products or components with display functions, such as mobile phones, tablet computers, televisions, displays, notebook computers, digital photo frames, navigators, and other essential components of the display devices are all those of ordinary skill in the art, and are not described herein in detail, and therefore, the embodiments of the display devices may be referred to the embodiments of the display panel, and repeated descriptions are omitted.
Based on the same concept, embodiments of the present invention further provide methods for adjusting crosstalk of a display panel, because the principle of the method for solving the problem is similar to that of the above embodiments of the present invention, the implementation of the method can be referred to the implementation of the display panel of the present invention, and repeated details are not repeated.
As shown in fig. 6, the methods for adjusting a display panel according to an embodiment of the present invention include:
and step 602, determining a crosstalk value corresponding to the detection position according to at least two brightness values of the detection positions, and adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust the crosstalk of the display panel.
In the embodiment of the invention, the crosstalk value can be determined according to at least two brightness values of the detection position of the light incident side of the th substrate, and the turn-off voltage of the thin film transistor of the array substrate can be adjusted according to the crosstalk value and the preset crosstalk condition to adjust the crosstalk of the display panel, wherein the th substrate is a substrate opposite to the array substrate in the display panel, and the leakage current of the thin film transistor can be changed when the turn-off voltage of the thin film transistor is changed, so that the crosstalk caused by the leakage current is changed.
In the embodiment of the invention, the brightness value of the detection position is detected by the photosensitive element, and at least two brightness values detected by the photosensitive element are sent to the crosstalk adjusting module, so that the crosstalk adjusting module determines the crosstalk value corresponding to the detection position according to the at least two brightness values of the detection position, and the crosstalk adjusting module adjusts the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and the preset crosstalk condition, thereby adjusting the crosstalk of the display panel.
Optionally, determining the brightness value of the detection position of the light incident side of the th substrate includes:
determining a th brightness value of the inspection position of the light incident side of the th substrate when the th inspection screen is displayed, and determining a second brightness value of the inspection position when the second inspection screen is displayed;
the th inspection picture and the second inspection picture have the same pattern in the same target display areas, the th substrate comprises a plurality of target display areas, each target display area comprises at least inspection positions, the th substrate has at least calibration display areas outside the target display areas, and the th inspection picture and the second inspection picture have different patterns in the same calibration display areas.
Optionally, determining the crosstalk value corresponding to the detection position according to at least two brightness values of the detection positions includes:
and determining crosstalk values corresponding to the detection positions according to the th brightness value and the second brightness value of the same detection positions.
Optionally, adjusting a turn-off voltage of a thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust crosstalk of the display panel, including:
and after determining that the crosstalk condition is not met according to the crosstalk value corresponding to the detection position, adjusting the turn-off voltage of the thin film transistor of the array substrate to adjust the crosstalk of the display panel.
Alternatively, whether the crosstalk condition is satisfied is determined by:
judging whether the crosstalk values corresponding to all the detection positions on the th substrate are smaller than a preset crosstalk threshold value, and if so, determining that a crosstalk condition is met;
otherwise, determining that the crosstalk condition is not satisfied.
Optionally, adjusting a turn-off voltage of a thin film transistor of the array substrate to adjust crosstalk of the display panel includes:
determining an adjustment amplitude corresponding to the number of times of adjusting the turn-off voltage according to a preset corresponding relation between the number of times of adjusting the turn-off voltage and the adjustment amplitude so as to adjust the crosstalk of the display panel;
and adjusting the turn-off voltage of the thin film transistor according to the adjustment amplitude.
As shown in fig. 7, a specific process of the method for adjusting the display panel shown in fig. 5 according to the embodiment of the present invention includes:
detecting a brightness value of the position of the photosensitive element 503 when the th detection picture is displayed by the photosensitive element 503 and detecting a second brightness value of the position of the photosensitive element 503 when the second detection picture is displayed, wherein the patterns of the target display areas of the th detection picture and the second detection picture are the same, the th substrate comprises a plurality of target display areas, each target display area comprises at least detection positions, the th substrate has at least calibration display areas outside the target display areas, and the patterns of the th detection picture and the second detection picture in the same calibration display areas are different;
step 704: the crosstalk adjusting module 502 determines whether a crosstalk condition is satisfied, if so, performs step 705, otherwise, performs step 706;
step 705: the crosstalk adjustment module 502 ignores the turn-off voltage of the thin film transistor of the adjustment array substrate, and then ends the process;
step 706: the crosstalk adjusting module 502 adjusts the turn-off voltage of the thin film transistor of the array substrate, and then ends the process.
In the embodiment of the present invention, after the step 706 is executed, the step 701 may be further continuously executed, so that after the crosstalk adjusting module 502 adjusts the turn-off voltage of the thin film transistor of the array substrate, the crosstalk adjusting module 502 determines whether the crosstalk condition is currently satisfied, and if the crosstalk condition is not satisfied, the step 706 is executed again to adjust the turn-off voltage of the thin film transistor of the array substrate until the crosstalk adjusting module 502 determines that the crosstalk condition is satisfied.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1, a method of adjusting crosstalk of a display panel, the method comprising:
determining a brightness value of a detection position of a light incident side of an th substrate, wherein the th substrate is a substrate opposite to an array substrate in a display panel;
determining a crosstalk value corresponding to the detection position according to at least two brightness values of the detection positions, and adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust the crosstalk of the display panel;
adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the detection position and a preset crosstalk condition to adjust the crosstalk of the display panel, including:
after determining that the crosstalk condition is not met according to the crosstalk value corresponding to the detection position, adjusting the turn-off voltage of the thin film transistor of the array substrate to adjust the crosstalk of the display panel;
the determining the brightness value of the detection position of the light incident side of the th substrate comprises the following steps:
determining a th brightness value of a sensing position of a light incident side of the th substrate when the th sensing screen is displayed, and determining a second brightness value of the sensing position when the second sensing screen is displayed;
the th inspection picture and the second inspection picture have the same pattern in the same target display areas, the th substrate comprises a plurality of target display areas, each target display area comprises at least inspection positions, the th substrate has at least calibration display areas outside the target display areas, and the th inspection picture and the second inspection picture have different patterns in the same calibration display areas.
2. The method of claim 1, wherein determining the crosstalk value corresponding to the detection location based on at least two luminance values for the same detection locations comprises:
and determining crosstalk values corresponding to the detection positions according to th brightness values and second brightness values of the same detection positions.
3. The method of claim 1, wherein the determination of whether the crosstalk condition is satisfied is made by:
judging whether the crosstalk values corresponding to all the detection positions on the th substrate are smaller than a preset crosstalk threshold value, if so, determining that a crosstalk condition is met;
otherwise, determining that the crosstalk condition is not satisfied.
4. The method of claim 1, wherein adjusting the turn-off voltage of the thin film transistors of the array substrate to adjust the crosstalk of the display panel comprises:
determining the adjustment amplitude according to the preset corresponding relation between the times of adjusting the closing voltage and the adjustment amplitude;
and adjusting the turn-off voltage of the thin film transistor according to the adjustment amplitude so as to adjust the crosstalk of the display panel.
5, display panel adopting the method of any claim 1-4, , wherein the display panel comprises a th substrate and a crosstalk adjusting module, wherein the light incident side of the th substrate has at least photosensitive elements, and the th substrate is the opposite substrate of the array substrate in the display panel;
the photosensitive element is used for determining the brightness value of the position of the photosensitive element and sending the determined brightness value to the crosstalk adjusting module;
the crosstalk adjusting module is used for determining a crosstalk value corresponding to the photosensitive element according to at least two brightness values sent by the same photosensitive elements, and adjusting the turn-off voltage of the thin film transistor of the array substrate according to the crosstalk value corresponding to the photosensitive element and a preset crosstalk condition so as to adjust the crosstalk of the display panel;
wherein the photosensitive element is specifically configured to:
determining a th brightness value of a sensing position of a light incident side of the th substrate when the th sensing screen is displayed, and determining a second brightness value of the sensing position when the second sensing screen is displayed;
the th inspection picture and the second inspection picture have the same pattern in the same target display areas, the th substrate comprises a plurality of target display areas, each target display area comprises at least inspection positions, the th substrate has at least calibration display areas outside the target display areas, and the th inspection picture and the second inspection picture have different patterns in the same calibration display areas.
6. The display panel of claim 5, wherein the crosstalk adjustment module is located at an edge of the th substrate.
7. The display panel of claim 5, wherein the photosensitive element is on the black matrix layer on the light incident side of the th substrate.
A display device of , comprising the display panel of any one of claims 5 to 7 or .
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| US9310916B2 (en) * | 2011-01-14 | 2016-04-12 | Apple Inc. | Display to touch crosstalk compensation |
| CN106920528B (en) * | 2017-05-05 | 2018-07-06 | 惠科股份有限公司 | Method of adjustment, device and the display equipment of gate off voltage |
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