CN109712584B - Debugging method of liquid crystal display device - Google Patents
Debugging method of liquid crystal display device Download PDFInfo
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- CN109712584B CN109712584B CN201910115189.1A CN201910115189A CN109712584B CN 109712584 B CN109712584 B CN 109712584B CN 201910115189 A CN201910115189 A CN 201910115189A CN 109712584 B CN109712584 B CN 109712584B
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Abstract
The invention provides a debugging method of a liquid crystal display device. The debugging method of the liquid crystal display device of the invention adjusts the corresponding binding voltage group and the common voltage when the liquid crystal display device displays the detection picture corresponding to the selected gray scale so that the crosstalk parameters of the detection picture meet the requirements, thereby obtaining target common voltage corresponding to the selected gray scale, adjusting the common voltage when the liquid crystal display device displays the detection picture corresponding to other binding gray scales to enable crosstalk parameters of the detection picture to meet requirements, thereby obtaining target common voltage corresponding to other binding gray scales, and then, the optimal common voltage is obtained and adjusted to the optimal common voltage, and then when the liquid crystal display device displays detection pictures corresponding to other binding point gray scales, the corresponding binding point voltage group is adjusted to enable crosstalk parameters of the detection pictures to meet requirements, so that the crosstalk phenomenon of the liquid crystal display device can be effectively improved, and the display effect of the liquid crystal display device is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a debugging method of a liquid crystal display device.
Background
In the field of Display technology, flat panel Display devices such as Liquid Crystal Display (LCD) devices have gradually replaced Cathode Ray Tube (CRT) Display devices. The liquid crystal display device has many advantages of thin body, power saving, no radiation, etc., and is widely used.
Most of the existing liquid crystal display devices in the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module (backlight module). Generally, a Liquid Crystal display panel includes a Color Filter (CF) substrate, a Thin Film Transistor (TFT) array substrate, a Liquid Crystal (LC) sandwiched between the Color Filter substrate and the TFT array substrate, and a Sealant frame (Sealant). The liquid crystal display panel has the working principle that liquid crystal molecules are placed in two parallel glass substrates, a plurality of vertical and horizontal fine wires are arranged between the two glass substrates, and the liquid crystal molecules are controlled to change directions by electrifying or not, so that light rays of the backlight module are refracted out to generate pictures.
In the use process of the existing TFT-LCD, a crosstalk (crosstalk) phenomenon often exists, namely, one part of area on the whole display screen is influenced by the other part of area to generate picture display distortion. The crosstalk phenomenon occurring in the liquid crystal display device is mainly caused by the driving method, and specifically, the liquid crystal display device generally adopts alternating current driving, and in order to suppress flicker of the liquid crystal display device, it is necessary to keep the polarities of the driving voltages of the adjacent pixels in the liquid crystal display device opposite.
However, when the driving voltages of the adjacent pixels are kept in opposite polarities by column inversion, crosstalk occurs in a black-bottom white frame image or a gray-bottom white frame image (as shown in fig. 1) of the liquid crystal display device, for example, referring to fig. 1, in a gray-bottom white frame image 10, a dark line 12 and a bright line 13 appear on the upper and lower opposite sides of a white frame 11, or abnormal regions or abnormal lines appear on the left and right sides of the white frame, which may cause abnormal distortion of the display image and reduce the display effect of the liquid crystal display device.
Disclosure of Invention
The invention aims to provide a debugging method of a liquid crystal display device, which can improve the crosstalk phenomenon of the liquid crystal display device and improve the display effect of the liquid crystal display device.
In order to achieve the above object, the present invention provides a method for debugging a liquid crystal display device, comprising the steps of:
step S1, providing a liquid crystal display device; the liquid crystal display device is accessed to a public voltage and stores a plurality of binding voltage groups corresponding to a plurality of preset binding gray scales respectively; carrying out first pretreatment on the liquid crystal display device;
step S2, selecting one of the binding point gray scales as a selected gray scale, and enabling the liquid crystal display device to display a first detection picture corresponding to the selected gray scale; adjusting the binding point voltage group and the common voltage corresponding to the selected gray scale until the crosstalk parameters at all positions in the first detection picture are smaller than or equal to a preset first threshold value, and taking the common voltage at the moment as a target common voltage corresponding to the selected gray scale;
step S3, selecting one of the plurality of binding point gray scales except the selected gray scale as a primary tuning gray scale, enabling the liquid crystal display device to display a second detection picture corresponding to the primary tuning gray scale, adjusting the public voltage until crosstalk parameters at each position in the second detection picture are smaller than or equal to a first threshold value, and taking the public voltage at the moment as a target public voltage corresponding to the primary tuning gray scale;
step S4, repeating the step S3 until a target common voltage corresponding to each binding point gray scale is obtained, and obtaining a preferred common voltage by using the target common voltages corresponding to the plurality of binding point gray scales;
step S5, adjusting the common voltage to the optimized common voltage and carrying out second pretreatment on the liquid crystal display device;
step S6, selecting one of the plurality of binding point gray scales except the selected gray scale as a final modulation gray scale, enabling the liquid crystal display device to display a third detection picture corresponding to the final modulation gray scale, and adjusting the binding point voltage group corresponding to the final modulation gray scale until crosstalk parameters at each position in the third detection picture are smaller than or equal to a preset second threshold value;
step S7, repeat step S6 until each binding gray level except the selected gray level is completed in step S6.
The first detection picture corresponding to the selected gray scale comprises a first area and a second area surrounding the outer side of the first area, the gray scale of the first area is the preset highest gray scale, and the gray scale of the second area is the selected gray scale;
the second detection picture corresponding to the initial tone gray scale comprises a third area and a fourth area surrounding the outer side of the third area, the gray scale of the third area is the preset highest gray scale, and the gray scale of the fourth area is the initial tone gray scale;
the third detection picture corresponding to the final tone gray scale comprises a fifth area and a sixth area surrounding the outer side of the fifth area, the gray scale of the fifth area is the final tone gray scale, and the gray scale of the sixth area is the preset highest gray scale.
The step S2 specifically includes:
step S21, selecting a binding point gray scale as a selected gray scale, and enabling the liquid crystal display device to display a first detection picture corresponding to the selected gray scale;
step S22, keeping the common voltage unchanged, adjusting the binding voltage group corresponding to the selected gray scale to reduce the crosstalk parameters at each position of the first detection picture and make the crosstalk parameters at each position in the second area consistent;
step S23, adjusting the common voltage to reduce the crosstalk parameters at each location in the first detection picture until the crosstalk parameters at each location in the first detection picture are all less than or equal to a preset first threshold, and using the common voltage at this time as a target common voltage corresponding to the selected gray scale.
The binding voltage group corresponding to each binding gray scale comprises a positive polarity voltage and a negative polarity voltage;
the specific way of adjusting the binding voltage group corresponding to the selected gray scale in step S22 to reduce the crosstalk parameter at each location of the first detection picture is as follows: adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale along the same direction or the opposite direction to reduce crosstalk parameters at all positions of the first detection picture;
the specific manner of adjusting the binding voltage group corresponding to the final modulation gray scale in step S6 until the crosstalk parameters at each position in the third detection picture are all less than or equal to the preset second threshold value is as follows: and adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale along the same direction or the opposite direction to reduce crosstalk parameters at all places in the third detection picture until the crosstalk parameters at all places in the third detection picture are all smaller than or equal to a preset second threshold value.
The first area, the third area and the fifth area are all rectangular in shape; the second area, the fourth area and the sixth area are all rectangular frames.
The first threshold and the second threshold are both 0.
The specific way of obtaining the preferred common voltage by using the target common voltages corresponding to the plurality of binding point gray scales in step S4 is to obtain the preferred common voltage by averaging the target common voltages corresponding to the plurality of binding point gray scales.
The specific process of performing the first preprocessing on the liquid crystal display device in step S1 includes:
step S11, determining the highest driving voltage corresponding to the preset highest gray scale according to the attribute parameters of the liquid crystal display device;
step S12, adjusting the common voltage until the flicker value is the minimum value when the LCD device displays the picture with the preset highest gray scale;
step S13, measuring the brightness of the liquid crystal display device when displaying the preset highest gray scale and the brightness of the liquid crystal display device when displaying the preset lowest gray scale, and calculating the target brightness respectively corresponding to the plurality of binding point gray scales according to the brightness of the liquid crystal display device when displaying the preset highest gray scale, the brightness of the liquid crystal display device when displaying the preset lowest gray scale and the preset target gamma value;
step S14, adjusting a plurality of binding voltage groups corresponding to the plurality of binding gray scales to make the brightness of the liquid crystal display device when displaying each binding gray scale be the target brightness corresponding to the binding gray scale;
step S15, adjusting the plurality of tie voltage groups corresponding to the plurality of tie gray levels such that a flicker value when the liquid crystal display device displays a screen of each tie gray level is a minimum value.
The specific process of performing the second preprocessing on the liquid crystal display device in step S5 is to adjust a plurality of tie voltage groups corresponding to a plurality of tie gray scales, so that the brightness of the liquid crystal display device when displaying each tie gray scale is the target brightness corresponding to the tie gray scale.
The selected gray scale is smaller than a preset maximum gray scale and larger than a preset minimum gray scale.
The invention has the beneficial effects that: the debugging method of the liquid crystal display device of the invention adjusts the corresponding binding voltage group and the common voltage when the liquid crystal display device displays the detection picture corresponding to the selected gray scale so that the crosstalk parameters of the detection picture meet the requirements, thereby obtaining target common voltage corresponding to the selected gray scale, adjusting the common voltage when the liquid crystal display device displays the detection picture corresponding to other binding gray scales to enable crosstalk parameters of the detection picture to meet requirements, thereby obtaining target common voltage corresponding to other binding gray scales, and then, the optimal common voltage is obtained and adjusted to the optimal common voltage, and then when the liquid crystal display device displays detection pictures corresponding to other binding point gray scales, the corresponding binding point voltage group is adjusted to enable crosstalk parameters of the detection pictures to meet requirements, so that the crosstalk phenomenon of the liquid crystal display device can be effectively improved, and the display effect of the liquid crystal display device is improved.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic diagram of a conventional LCD device driven by column inversion to generate crosstalk in a white frame with gray background;
FIG. 2 is a flowchart illustrating a debugging method of the liquid crystal display device according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 2, the present invention provides a method for debugging a liquid crystal display device, including the following steps:
step S1, a liquid crystal display device is provided. The liquid crystal display device is accessed to a public voltage and stores a plurality of binding voltage groups respectively corresponding to a plurality of preset binding gray scales, and the liquid crystal display device is preprocessed for the first time.
Specifically, the binding voltage set corresponding to each binding gray scale includes a positive polarity voltage and a negative polarity voltage.
Specifically, the specific process of performing the first preprocessing on the liquid crystal display device in step S1 includes:
step S11, determining a highest driving voltage corresponding to a preset highest gray scale according to the attribute parameters of the liquid crystal display device.
Specifically, in step S11, the attribute parameters include a transmittance of a liquid crystal panel of the liquid crystal display device, and the like.
Specifically, the preset highest gray level is 255 gray levels.
Specifically, the highest driving voltage determined in step S11 includes a highest positive polarity voltage and a highest negative polarity voltage.
Step S12, adjusting the common voltage until the flicker value of the liquid crystal display device displaying the preset image with the highest gray scale is the minimum value, so as to determine the initial common voltage.
Step S13, measuring the brightness of the liquid crystal display device when displaying the preset highest gray scale and the brightness of the liquid crystal display device when displaying the preset lowest gray scale, and calculating the target brightness respectively corresponding to the plurality of tie point gray scales according to the brightness of the liquid crystal display device when displaying the preset highest gray scale, the brightness of the liquid crystal display device when displaying the preset lowest gray scale, and the preset target gamma value.
Specifically, the preset lowest gray level is a 0 gray level.
Preferably, the target gamma value is 2.2.
Step S14, adjusting the plurality of tie voltage sets corresponding to the plurality of tie gray scales so that the brightness of the lcd device displaying each tie gray scale is the target brightness corresponding to the tie gray scale.
Specifically, in step S14, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to each binding gray scale are adjusted in opposite directions to ensure that the brightness of the liquid crystal display device displaying each binding gray scale is the target brightness corresponding to the binding gray scale.
Step S15, adjusting the plurality of tie voltage groups corresponding to the plurality of tie gray levels such that a flicker value when the liquid crystal display device displays a screen of each tie gray level is a minimum value.
Specifically, in step S15, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to each binding gray scale are adjusted in the same direction, so that the flicker value of the liquid crystal display device is kept to be the minimum value while the luminance is kept unchanged when the liquid crystal display device displays the screen of each binding gray scale.
Further, the specific process of performing the first preprocessing on the liquid crystal display device in the step S1 further includes a step S16 of calculating a driving voltage corresponding to the minimum gray scale according to the binding voltage of the binding gray scale closest to the preset minimum gray scale to keep the contrast highest.
Step S2, selecting one of the plurality of binding point grayscales as a selected grayscale, so that the liquid crystal display device displays a first detection picture corresponding to the selected grayscale. And adjusting the binding voltage group and the common voltage corresponding to the selected gray scale to control the liquid crystal display device to adjust the first detection picture until the crosstalk parameters at all positions in the first detection picture are less than or equal to a preset first threshold value, and taking the common voltage at the moment as a target common voltage corresponding to the selected gray scale.
Specifically, the first detection picture corresponding to the selected gray scale includes a first area and a second area surrounding the first area, the gray scale of the first area is a preset highest gray scale, and the gray scale of the second area is the selected gray scale. Preferably, the first region has a rectangular shape, and the second region has a rectangular frame shape.
Specifically, the step S2 specifically includes:
step S21, selecting a tie point gray scale as the selected gray scale, so that the liquid crystal display device displays a first detection picture corresponding to the selected gray scale.
And step S22, keeping the common voltage unchanged, and adjusting the binding voltage group corresponding to the selected gray scale to reduce the crosstalk parameters at each position of the first detection picture and make the crosstalk parameters at each position in the second area consistent.
Specifically, the specific way of adjusting the tie voltage group corresponding to the selected gray scale in step S22 to control the liquid crystal display device to adjust the first detection picture so as to reduce the crosstalk parameter at each position of the first detection picture is as follows: and adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale along the same direction or the opposite direction to reduce the crosstalk parameters at all positions of the first detection picture.
Further, in the step S22, during the actual operation, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale are adjusted in the same direction, and it is determined whether the crosstalk parameter at each location of the first detection picture is reduced, if so, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale are continuously adjusted in the same direction, otherwise, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale are adjusted in the opposite direction.
Step S23, adjusting the common voltage to reduce the crosstalk parameters at each location in the first detection picture until the crosstalk parameters at each location in the first detection picture are all less than or equal to a preset first threshold, and using the common voltage at this time as a target common voltage corresponding to the selected gray scale.
Specifically, in the step S23, during the actual operation, the common voltage is first decreased, and whether the crosstalk parameters at various places in the first detection picture are decreased is determined, if yes, the common voltage is continuously decreased, otherwise, the common voltage is increased until the crosstalk parameters at various places in the first detection picture are all smaller than or equal to the preset first threshold.
Preferably, the first threshold is 0.
Specifically, the selected gray scale is smaller than a preset maximum gray scale and larger than a preset minimum gray scale.
In particular, the crosstalk parameter is Just Noticeable Difference (JND) or other parameter that may characterize the degree of crosstalk.
And step S3, selecting one of the plurality of binding point gray scales except the selected gray scale as a primary tuning gray scale, enabling the liquid crystal display device to display a second detection picture corresponding to the primary tuning gray scale, adjusting the public voltage to control the liquid crystal display device to adjust the second detection picture until crosstalk parameters at each position in the second detection picture are smaller than or equal to a first threshold value, and taking the public voltage at the moment as a target public voltage corresponding to the primary tuning gray scale.
Specifically, the second detection frame corresponding to the first-tuning gray scale includes a third area and a fourth area surrounding the third area, the gray scale of the third area is a preset highest gray scale, and the gray scale of the fourth area is the first-tuning gray scale. Preferably, the third region has a rectangular shape, and the fourth region has a rectangular frame shape.
Specifically, in the step S3, during the actual operation, the common voltage is first decreased, and whether the crosstalk parameters at various places in the second detection frame are decreased is determined, if yes, the common voltage is continuously decreased, otherwise, the common voltage is increased until the crosstalk parameters at various places in the second detection frame are all smaller than or equal to the first threshold.
And S4, repeating the step S3 until the target common voltage corresponding to each binding point gray scale is obtained, and obtaining the optimal common voltage by using the target common voltages corresponding to a plurality of binding point gray scales.
Specifically, the preferred common voltage is obtained by averaging the target common voltages corresponding to the plurality of binding gray scales in step S4.
And step S5, adjusting the common voltage to the optimal common voltage and carrying out second pretreatment on the liquid crystal display device.
Specifically, the specific process of performing the second preprocessing on the liquid crystal display device in step S5 is to adjust a plurality of tie voltage groups corresponding to a plurality of tie gray scales, so that the brightness of the liquid crystal display device when displaying each tie gray scale is the target brightness corresponding to the tie gray scale.
And step S6, selecting one of the plurality of binding point gray scales except the selected gray scale as a final modulation gray scale, enabling the liquid crystal display device to display a third detection picture corresponding to the final modulation gray scale, and adjusting the binding point voltage group corresponding to the final modulation gray scale to control the liquid crystal display device to adjust the third detection picture until crosstalk parameters at all places in the third detection picture are less than or equal to a preset second threshold value.
Specifically, the third detection picture corresponding to the final tone gray scale includes a fifth area and a sixth area surrounding the fifth area, the gray scale of the fifth area is the final tone gray scale, and the gray scale of the sixth area is the preset highest gray scale. Preferably, the fifth region is rectangular, and the sixth region is rectangular.
Specifically, the specific manner of adjusting the tie voltage group corresponding to the final tone gray scale in step S6 until the crosstalk parameters at each position in the third detection picture are all less than or equal to the preset second threshold value is as follows: and adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale along the same direction or the opposite direction to reduce crosstalk parameters at all places in the third detection picture until the crosstalk parameters at all places in the third detection picture are all smaller than or equal to a preset second threshold value.
Specifically, in the step S6, during actual operation, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale are adjusted in the same direction, and it is determined whether the crosstalk parameter at each position of the third detection picture is reduced, if so, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale are continuously adjusted in the same direction, otherwise, the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale are adjusted in the opposite direction, until each crosstalk parameter at each position of the third detection picture is less than or equal to the preset second threshold.
Preferably, the second threshold is 0.
Step S7, repeat step S6 until each binding gray level except the selected gray level is completed in step S6.
Furthermore, because the flicker value of the liquid crystal display device is easy to increase by changing the mode of reducing the crosstalk of the common voltage, the invention can firstly measure the corresponding relation between the flicker value of the liquid crystal display device and the voltage value of the common voltage, and adjust the optimized common voltage by combining the actual flicker value specification, or optimally design the liquid crystal display device to reduce the sensitivity of the flicker value to the common voltage, thereby reducing the influence of the debugging method of the liquid crystal display device on the flicker value of the liquid crystal display device.
It should be noted that, the debugging method of the liquid crystal display device of the present invention adjusts the corresponding binding point voltage group and the common voltage when the liquid crystal display device displays the detection picture corresponding to the selected gray scale so that the crosstalk parameter of the detection picture meets the requirement, thereby obtaining the target common voltage corresponding to the selected gray scale, and adjusts the common voltage when the liquid crystal display device displays the detection picture corresponding to the other binding point gray scale so that the crosstalk parameter of the detection picture meets the requirement, thereby obtaining the target common voltage corresponding to the other binding point gray scale, further obtaining the preferred common voltage and adjusting the common voltage to the preferred common voltage, and then adjusts the corresponding binding point voltage group when the liquid crystal display device displays the detection picture corresponding to the other binding point gray scale so that the crosstalk parameter of the detection picture meets the requirement, and finally, when the detection picture corresponding to each binding point gray scale is displayed, the crosstalk parameters at all positions of the detection picture are reduced in the same trend and can be finally reduced to 0, the crosstalk phenomenon of the liquid crystal display device can be effectively improved, and the display effect of the liquid crystal display device is improved.
To sum up, the debugging method of the liquid crystal display device of the present invention adjusts the binding voltage group and the common voltage corresponding to the selected gray scale when the liquid crystal display device displays the detection picture corresponding to the selected gray scale so that the crosstalk parameter of the detection picture meets the requirement, thereby obtaining the target common voltage corresponding to the selected gray scale, adjusts the common voltage when the liquid crystal display device displays the detection picture corresponding to the other binding gray scale so that the crosstalk parameter of the detection picture meets the requirement, thereby obtaining the target common voltage corresponding to the other binding gray scale, further obtaining the preferred common voltage and adjusting the common voltage to the preferred common voltage, and then adjusts the corresponding binding voltage group when the liquid crystal display device displays the detection picture corresponding to the other binding gray scale so that the crosstalk parameter of the detection picture meets the requirement, thereby effectively improving the crosstalk phenomenon of the liquid crystal display device, the display effect of the liquid crystal display device is improved.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (9)
1. A debugging method of a liquid crystal display device is characterized by comprising the following steps:
step S1, providing a liquid crystal display device; the liquid crystal display device is accessed to a public voltage and stores a plurality of binding voltage groups corresponding to a plurality of preset binding gray scales respectively; carrying out first pretreatment on the liquid crystal display device;
step S2, selecting one of the binding point gray scales as a selected gray scale, and enabling the liquid crystal display device to display a first detection picture corresponding to the selected gray scale; adjusting the binding point voltage group and the common voltage corresponding to the selected gray scale until the crosstalk parameters at all positions in the first detection picture are smaller than or equal to a preset first threshold value, and taking the common voltage at the moment as a target common voltage corresponding to the selected gray scale;
step S3, selecting one of the plurality of binding point gray scales except the selected gray scale as a primary tuning gray scale, enabling the liquid crystal display device to display a second detection picture corresponding to the primary tuning gray scale, adjusting the public voltage until crosstalk parameters at each position in the second detection picture are smaller than or equal to a first threshold value, and taking the public voltage at the moment as a target public voltage corresponding to the primary tuning gray scale;
step S4, repeating the step S3 until a target common voltage corresponding to each binding point gray scale is obtained, and obtaining a preferred common voltage by using the target common voltages corresponding to the plurality of binding point gray scales;
step S5, adjusting the common voltage to the optimized common voltage and carrying out second pretreatment on the liquid crystal display device;
step S6, selecting one of the plurality of binding point gray scales except the selected gray scale as a final modulation gray scale, enabling the liquid crystal display device to display a third detection picture corresponding to the final modulation gray scale, and adjusting the binding point voltage group corresponding to the final modulation gray scale until crosstalk parameters at each position in the third detection picture are smaller than or equal to a preset second threshold value;
step S7, repeating step S6 until each binding point gray scale except the selected gray scale is finished in step S6;
the specific way of obtaining the preferred common voltage by using the target common voltages corresponding to the plurality of binding point gray scales in step S4 is to obtain the preferred common voltage by averaging the target common voltages corresponding to the plurality of binding point gray scales.
2. The method according to claim 1, wherein the first detection frame corresponding to the selected gray level comprises a first region and a second region surrounding the first region, the gray level of the first region is a predetermined highest gray level, and the gray level of the second region is the selected gray level;
the second detection picture corresponding to the initial tone gray scale comprises a third area and a fourth area surrounding the outer side of the third area, the gray scale of the third area is the preset highest gray scale, and the gray scale of the fourth area is the initial tone gray scale;
the third detection picture corresponding to the final tone gray scale comprises a fifth area and a sixth area surrounding the outer side of the fifth area, the gray scale of the fifth area is the final tone gray scale, and the gray scale of the sixth area is the preset highest gray scale.
3. The method for debugging a liquid crystal display device according to claim 2, wherein the step S2 specifically includes:
step S21, selecting a binding point gray scale as a selected gray scale, and enabling the liquid crystal display device to display a first detection picture corresponding to the selected gray scale;
step S22, keeping the common voltage unchanged, adjusting the binding voltage group corresponding to the selected gray scale to reduce the crosstalk parameters at each position of the first detection picture and make the crosstalk parameters at each position in the second area consistent;
step S23, adjusting the common voltage to reduce the crosstalk parameters at each location in the first detection picture until the crosstalk parameters at each location in the first detection picture are all less than or equal to a preset first threshold, and using the common voltage at this time as a target common voltage corresponding to the selected gray scale.
4. The debugging method of the liquid crystal display device according to claim 3, wherein the set of binding voltages corresponding to each binding gray scale comprises a positive polarity voltage and a negative polarity voltage;
the specific way of adjusting the binding voltage group corresponding to the selected gray scale in step S22 to reduce the crosstalk parameter at each location of the first detection picture is as follows: adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the selected gray scale along the same direction or the opposite direction to reduce crosstalk parameters at all positions of the first detection picture;
the specific manner of adjusting the binding voltage group corresponding to the final modulation gray scale in step S6 until the crosstalk parameters at each position in the third detection picture are all less than or equal to the preset second threshold value is as follows: and adjusting the positive polarity voltage and the negative polarity voltage in the binding voltage group corresponding to the final modulation gray scale along the same direction or the opposite direction to reduce crosstalk parameters at all places in the third detection picture until the crosstalk parameters at all places in the third detection picture are all smaller than or equal to a preset second threshold value.
5. A debugging method of a liquid crystal display device according to claim 2, wherein the first region, the third region and the fifth region are all rectangular in shape; the second area, the fourth area and the sixth area are all rectangular frames.
6. The method for debugging a liquid crystal display device according to claim 1, wherein the first threshold value and the second threshold value are both 0.
7. The method for debugging the liquid crystal display device according to claim 1, wherein the specific process of performing the first preprocessing on the liquid crystal display device in the step S1 includes:
step S11, determining the highest driving voltage corresponding to the preset highest gray scale according to the attribute parameters of the liquid crystal display device;
step S12, adjusting the common voltage until the flicker value is the minimum value when the LCD device displays the picture with the preset highest gray scale;
step S13, measuring the brightness of the liquid crystal display device when displaying the preset highest gray scale and the brightness of the liquid crystal display device when displaying the preset lowest gray scale, and calculating the target brightness respectively corresponding to the plurality of binding point gray scales according to the brightness of the liquid crystal display device when displaying the preset highest gray scale, the brightness of the liquid crystal display device when displaying the preset lowest gray scale and the preset target gamma value;
step S14, adjusting a plurality of binding voltage groups corresponding to the plurality of binding gray scales to make the brightness of the liquid crystal display device when displaying each binding gray scale be the target brightness corresponding to the binding gray scale;
step S15, adjusting the plurality of tie voltage groups corresponding to the plurality of tie gray levels such that a flicker value when the liquid crystal display device displays a screen of each tie gray level is a minimum value.
8. The method for debugging the liquid crystal display device of claim 7, wherein the step S5 of performing the second preprocessing on the liquid crystal display device is to adjust a plurality of tie voltage sets corresponding to a plurality of tie gray scales so that the brightness of the liquid crystal display device displaying each tie gray scale is a target brightness corresponding to the tie gray scale.
9. The method of claim 1, wherein the selected gray level is less than a predetermined maximum gray level and greater than a predetermined minimum gray level.
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| CN113205771B (en) * | 2021-04-30 | 2022-05-10 | 北海惠科光电技术有限公司 | Crosstalk elimination method and device of display panel and display equipment |
| CN113192456B (en) * | 2021-04-30 | 2022-05-10 | 北海惠科光电技术有限公司 | Crosstalk elimination method and device of display panel and display equipment |
| CN113205770B (en) * | 2021-04-30 | 2022-05-10 | 北海惠科光电技术有限公司 | Crosstalk elimination method and device of display panel and display equipment |
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| KR101212168B1 (en) * | 2006-11-28 | 2012-12-14 | 엘지디스플레이 주식회사 | LCD and drive method thereof |
| CN106297699B (en) * | 2016-08-30 | 2019-02-26 | 深圳市华星光电技术有限公司 | The picture adjusting method and device of liquid crystal display panel |
| CN106875916B (en) * | 2017-04-27 | 2019-03-26 | 武汉华星光电技术有限公司 | The method for burn-recording and burning/recording liquid crystal display panel device of liquid crystal display panel |
| CN108597428A (en) * | 2018-04-28 | 2018-09-28 | 惠州市华星光电技术有限公司 | Driving voltage adjustment method and liquid crystal display |
| CN108648707B (en) * | 2018-05-02 | 2021-03-19 | 武汉精测电子集团股份有限公司 | P-GAMMA automatic adjustment method and device based on medium and large size module |
| CN109036327A (en) * | 2018-10-24 | 2018-12-18 | 惠科股份有限公司 | Gamma value adjusting method, device and the computer readable storage medium of display panel |
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