CN117995109A - Display crosstalk compensation module and method and display device - Google Patents

Abstract

The disclosure relates to the technical field of display, and relates to a display crosstalk compensation module, a display crosstalk compensation method and a display device. The compensation module comprises a display panel and a compensation module, wherein: the display panel comprises a first display area and a non-display area, wherein the first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer; the compensation component is arranged on the non-display area and is used for detecting the gray scale values of the first pixel unit and the second pixel unit so as to obtain a first gray scale value corresponding to the first pixel unit and a second gray scale value corresponding to the second pixel unit; the compensation component is further used for compensating the first gray scale value when the second gray scale value is larger than the first gray scale value, so that the first gray scale value is converted into a third gray scale value, and the third gray scale value is smaller than the starting gray scale of the first pixel unit. The compensation module can reduce crosstalk and improve display effect.

Description

Display crosstalk compensation module and method and display device

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a display crosstalk compensation module, a display crosstalk compensation method and a display device.

Background

With the development of display technology, an OLED (Organic LIGHT EMITTING Diode) display panel has been widely used because of its advantages of high response, high contrast, flexibility, and the like. However, the conventional OLED device has the common crosstalk problem and has poor display effect.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure provides a display crosstalk compensation module, a display crosstalk compensation method and a display device, which can reduce crosstalk and improve display effect.

According to one aspect of the present disclosure, there is provided a display crosstalk compensation module including:

The display panel comprises a display area and a non-display area, wherein the display area comprises a first display area, the first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer;

The compensation component is arranged on the non-display area and is used for detecting the gray scale values of the first pixel unit and the second pixel unit so as to obtain a first gray scale value corresponding to the first pixel unit and a second gray scale value corresponding to the second pixel unit; the compensation component is further configured to compensate the first gray level when the second gray level is greater than the first gray level, so that the first gray level is converted into a third gray level, and the third gray level is less than the bright starting gray level of the first pixel unit.

In an exemplary embodiment of the present disclosure, the display panel further includes a second display region, the second display region being disposed adjacent to the first display region, and a luminance of the second display region being greater than a luminance of the first display region.

In an exemplary embodiment of the present disclosure, the light emitted from the first pixel unit is red light, and the light emitted from the second pixel unit is green light; or the light emitted by the first pixel unit is green light, and the light emitted by the second pixel unit is red light.

In an exemplary embodiment of the disclosure, the display panel includes a plurality of display areas, all gray-scale values in each of the display areas are provided with gray-scale compensation values corresponding to the gray-scale values, and the compensation component stores the gray-scale compensation values corresponding to all the gray-scale values in each of the display areas;

the compensation component can compensate the first gray scale value according to the gray scale compensation value corresponding to the first gray scale value.

According to one aspect of the present disclosure, there is provided a display crosstalk compensation method, the compensation method including:

Providing a display panel, wherein the display panel comprises a first display area, the first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer;

Detecting the gray scale values of the first pixel unit and the second pixel unit to obtain a first gray scale value corresponding to the first pixel unit and a second gray scale value corresponding to the second pixel unit;

When the second gray scale value is larger than the first gray scale value, the first gray scale value is compensated, so that the first gray scale value is converted into a third gray scale value, and the third gray scale value is smaller than the starting gray scale of the first pixel unit.

In an exemplary embodiment of the present disclosure, compensating the first gray scale value to convert the first gray scale value into a third gray scale value, the third gray scale value being smaller than the on-luminance gray scale of the first pixel unit includes:

and applying a preset voltage to the first pixel unit, wherein the preset voltage is smaller than the light-emitting voltage of the first pixel unit.

In an exemplary embodiment of the present disclosure, the display panel further includes a second display region, the second display region being disposed adjacent to the first display region, and a luminance of the second display region being greater than a luminance of the first display region.

In an exemplary embodiment of the present disclosure, the light emitted from the first pixel unit is red light, and the light emitted from the second pixel unit is green light; or the light emitted by the first pixel unit is green light, and the light emitted by the second pixel unit is red light.

In an exemplary embodiment of the present disclosure, the compensation method further includes:

Selecting a plurality of binding points from all corresponding gray scale values in the first display area, respectively setting corresponding gray scale compensation values for each binding point, and performing linear interpolation compensation on each gray scale value between two adjacent binding points so that each gray scale value has the corresponding gray scale compensation value;

the compensating the first gray scale value includes:

and compensating the first gray scale value according to the gray scale compensation value corresponding to the first gray scale value.

According to an aspect of the present disclosure, a display device is provided, including the display crosstalk compensation module set described in any one of the above.

When the second gray level value corresponding to the second pixel unit is larger than the first gray level value corresponding to the first pixel unit, the second pixel unit emits light, the first pixel unit does not emit light, and at the moment, the voltage difference between the first pixel unit and the second pixel unit is larger; by compensating the first gray scale value corresponding to the first pixel unit, the gray scale value of the first pixel unit is converted into the third gray scale value, the voltage difference between the first pixel unit and the second pixel unit can be reduced, the leakage current flowing to the first pixel unit from the second pixel unit can be reduced, the bright starting gray scale of the second pixel unit can be reduced, the gray scale corresponding to the second pixel unit which cannot be bright before is bright starting, the crosstalk between the first pixel unit and the second pixel unit can be reduced, and the display effect is improved. Meanwhile, the leakage current flowing from the second pixel unit to the first pixel unit is reduced, so that more current can flow to the second pixel unit, the second pixel unit is easier to turn on, the probability of black screen under a monochrome gray level transition picture can be reduced, and the display effect is improved. In addition, the third gray level value is smaller than the on-luminance gray level of the first pixel unit, so that the first pixel unit always does not emit light when the second pixel unit emits light, and the monochrome display effect can be ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic diagram showing the effect of the related art.

Fig. 2 is a 2nit monochromatic red (R) gamma curve.

Fig. 3 is a 2nit monochromatic green (G) gamma curve.

Fig. 4 is a schematic diagram showing a crosstalk compensation module according to an embodiment of the disclosure.

Fig. 5 is a schematic structural diagram of a first pixel unit and a second pixel unit in an embodiment of the disclosure.

Fig. 6 is a flowchart showing a crosstalk compensation method in an embodiment of the present disclosure.

Fig. 7 is a schematic diagram of a display effect compensated by the display crosstalk compensation method of the present disclosure.

Reference numerals illustrate:

1. A first pixel unit; 2. a second pixel unit; 101. an anode; 102. a hole injection layer; 103. a hole transport layer; 104. a light emitting layer; 105. an electron transport layer; 106. a cathode; 3. a compensation component; 4. a storage component; 10. a display panel; 100. a flexible substrate; 200. a gate line; 300. and a driving circuit.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

With the wide application of OLED, the requirements of users on the image quality are increasing, however, the problem of RG crosstalk is common in the OLED on the market at low brightness. The specific surface is as follows: when RG single-color gray scale in a picture transits to a certain low gray scale, single color cannot be turned on, so that the edge area of the display panel 10 is directly blacked out, the layering sense of picture display is reduced, and the user experience is poor. As shown in fig. 1, the middle position is 64 gray levels, the left and right sides have 64-0 gray level transition regions, black blocks appear on two sides of the picture region and are similar to mosaic, and the user experience is very bad.

At present, the Gamma adjustment (Gamma adjustment) mode of the OLED is a white light picture adjustment, when the Gamma adjustment (Gamma adjustment) is carried out, crosstalk occurs between a green light (G) pixel unit and a red light (R) pixel unit to generate leakage current, but the Gamma adjustment (Gamma adjustment) can be completed without inputting current to the pixel unit corresponding to the red light (R) under the low gray level due to the Gamma adjustment mode, so that the white light picture display has no problem, but the gray level transition picture is particularly obviously low in gray level and can not be lightened when the red light (R) monochromatic picture is displayed, the green light (G) monochromatic picture can not be lightened similarly, and the red light (R) is not lightened under 60 gray levels through testing the Gamma curve (shown in fig. 2) of the 2 nit monochromatic red light (R); by testing the Gamma curve of 2 nit monochromatic green light (G) (as shown in fig. 3), green light (G) was found to be unlit below 40 gray scale. Therefore, the display screen can expose the problem that the monochrome display is not started when red light (R) or green light (G) has low gray scale under the condition of low brightness, and the picture display effect is greatly influenced.

Based on this, the disclosure provides a display crosstalk compensation module, as shown in fig. 4, the compensation module may include a display panel 10 and a compensation component 3, wherein:

The display panel 10 includes a display area including a first pixel unit 1 and a second pixel unit 2, the first pixel unit 1 and the second pixel unit 2 having different emission colors, the first pixel unit 1 and the second pixel unit 2 sharing the same common layer;

The compensation component 3 is arranged on the non-display area, and the compensation component 3 is used for detecting the gray scale values of the first pixel unit 1 and the second pixel unit 2 so as to obtain a first gray scale value corresponding to the first pixel unit 1 and a second gray scale value corresponding to the second pixel unit 2; the compensation component 3 is further configured to compensate the first gray level when the second gray level is greater than the first gray level, so that the first gray level is converted into a third gray level, and the third gray level is less than the on-luminance gray level of the first pixel unit 1.

When the detection component detects that the second gray level value corresponding to the second pixel unit 2 is larger than the first gray level value corresponding to the first pixel unit 1, the second pixel unit 2 emits light, the first pixel unit 1 does not emit light, and at the moment, the voltage difference between the first pixel unit 1 and the second pixel unit 2 is larger; the compensation component 3 compensates the first gray level value corresponding to the first pixel unit 1, so that the gray level value of the first pixel unit 1 is converted into the third gray level value, the voltage difference between the first pixel unit 1 and the second pixel unit 2 can be reduced, the leakage current flowing to the first pixel unit 1 from the second pixel unit 2 can be reduced, the bright gray level of the second pixel unit 2 can be reduced, the gray level corresponding to the second pixel unit 2 which cannot be previously bright can be bright, the crosstalk between the first pixel unit 1 and the second pixel unit 2 can be reduced, and the display effect can be improved. Meanwhile, the leakage current flowing from the second pixel unit 2 to the first pixel unit 1 is reduced, so that more current can flow to the second pixel unit 2, the second pixel unit 2 is easier to turn on, the probability of black screen under a monochrome gray level transition picture can be reduced, and the display effect is improved. In addition, since the third gray scale value is smaller than the on-luminance gray scale of the first pixel unit 1, the first pixel unit 1 always does not emit light when the second pixel unit 2 emits light, and a monochrome display effect can be ensured.

The following details of each portion of the crosstalk compensation module for display of the present disclosure:

The display panel 10 may include a display area and a non-display area, and pixel units may be disposed in the display area. The non-display area may be located at least one side of the display area, and the non-display area may be used to arrange the driving circuit 300 for controlling the pixel units in the display area and the gate lines 200 connected to the pixel units.

In some embodiments of the present disclosure, the number of display regions may be plural, wherein one display region may be a first display region, and another display region different from the first display region may be a second display region, and the second display region may be adjacent to the first display region and may have a brightness greater than that of the first display region.

In one exemplary embodiment of the present disclosure, the first display region may include a first pixel unit 1 and a second pixel unit 2, and the first pixel unit 1 and the second pixel unit 2 may be disposed side by side and adjacently distributed. As shown in fig. 5, each of the first pixel unit 1 and the second pixel unit 2 may include an anode 101, a hole injection layer 102, a hole transport layer 103, a light emitting layer 104, an electron transport layer 105, a cathode 106, and the like. The first pixel unit 1 and the second pixel unit 2 may share the same common layer, for example, the common layer may be any one of the hole transport layer 103 or the hole injection layer 102, or the common layer may include the hole transport layer 103 or the hole injection layer 102. When a voltage is applied to the first pixel unit 1 or the second pixel unit 2, the pixel unit to which the voltage is applied may leak electricity to the other pixel unit through the common layer.

In one exemplary embodiment of the present disclosure, the light emission colors of the first pixel unit 1 and the second pixel unit 2 are different. For example, the light emitted from the first pixel unit 1 may be red light, and the light emitted from the second pixel unit 2 may be green light; or the light emitted from the first pixel unit 1 may be green light, and the light emitted from the second pixel unit 2 may be red light. The first pixel unit 1 and the second pixel unit 2 may not emit light at the same time, i.e., in the first display area, the first pixel unit 1 and the second pixel unit 2 may display in a single color. It should be noted that the first display area may include a plurality of first pixel units 1 and a plurality of second pixel units 2.

The compensation component 3 can be arranged on the non-display area, in the picture display process, whether a gray-scale picture displayed by the first pixel unit 1 or the second pixel unit 2 in a single color exists in the first display area can be detected in real time through the compensation component 3, when the compensation component 3 detects that the gray-scale picture displayed by the first pixel unit 1 or the second pixel unit 2 in a single color exists, a first gray-scale value corresponding to the first pixel unit 1 and a second gray-scale value corresponding to the second pixel unit 2 can be obtained, the compensation component 3 can also compare the first gray-scale value with the second gray-scale value, and when the second gray-scale value is obviously larger than the first gray-scale value, the second pixel unit 2 can be judged to emit light, and the first pixel unit 1 does not emit light; or when the first gray level is significantly larger than the second gray level, it may be determined that the first pixel unit 1 emits light and the second pixel unit 2 does not emit light. For example, the compensation element 3 may be a driving chip.

In an exemplary embodiment of the present disclosure, the display crosstalk compensation module of the present disclosure may further include a storage component 4, and the storage component 4 may be disposed in the non-display area, for example, may be fixed on a flexible circuit board of the non-display area. The storage component 4 may be electrically connected to the compensation component 3, for example, the storage component 4 may be connected to the compensation component 3 through a transmission protocol, and the compensation component 3 may be burned with the storage component 4 through the transmission protocol to read data stored in the storage component 4, that is, bidirectional data communication may be performed between the storage component 4 and the compensation component 3. For example, storage component 4 may be Flash.

Each gray-scale value in the first display area has a compensation value corresponding to the gray-scale value, and the storage component 4 can store the gray-scale compensation value corresponding to each gray-scale value in the first display area. For example, each gray-scale value and the compensation value corresponding to each gray-scale value may be stored in the storage device 4 in the form of a table. When a certain gray-scale value needs to be compensated, the compensation component 3 can directly obtain the compensation value corresponding to the gray-scale value in a table look-up mode so as to compensate the gray-scale value.

In some embodiments of the present disclosure, the display panel 10 may be divided into a plurality of display areas of different display brightness according to display brightness levels of different areas in the display panel 10, the first display area and the second display area being two of the display areas. All the gray scale values in each display area can be correspondingly provided with a gray scale compensation value. The storage component 4 may store gray-scale compensation values corresponding to all gray-scale values corresponding to each display area. For example, in the present disclosure, the gray-scale compensation values corresponding to the gray-scale values in the brightness intervals may be set by sampling in advance for the different brightness intervals, the set gray-scale compensation values are burned into the storage component 4 by the compensation component 3, and in the process of performing display crosstalk compensation, the compensation component 3 may automatically read the gray-scale compensation values set in the storage component 4, and perform gray-scale compensation on the gray-scale values according to the gray-scale compensation values, so as to reduce RG crosstalk.

In some embodiments of the present disclosure, when the second gray level value is far greater than the first gray level value, it may be determined that the second pixel unit 2 needs to be turned on, at which time, the first pixel unit 1 does not need to be turned on (i.e., the second pixel unit 2 emits light and the first pixel unit 1 does not emit light). The first gray level may be compensated to convert the first gray level into a third gray level, and it should be noted that the third gray level may be smaller than the on-luminance gray level of the first pixel unit 1, and when the first gray level is converted into the third gray level, the first pixel unit 1 is still not on (i.e. the first pixel unit 1 does not emit light and the second pixel unit 2 emits light in a single color). For example, when compensating the first gray level, the compensation component 3 may call the table stored in the storage component 4, further obtain the gray level compensation value corresponding to the first gray level by looking up a table, and compensate the first gray level according to the gray level compensation value corresponding to the first gray level, so as to obtain the third compensation value.

For example, a preset voltage may be applied to the first pixel unit 1, after the preset voltage is applied to the first pixel unit 1, a voltage difference between the first pixel unit 1 and the second pixel unit 2 may be reduced, a leakage current flowing to the first pixel unit 1 from the second pixel unit 2 through the common layer may be reduced, a brightness starting gray level value of the second pixel unit 2 may be reduced, further, a gray level corresponding to the second pixel unit 2 that has not been started before may be started, crosstalk between the first pixel unit 1 and the second pixel unit 2 may be reduced, and a display effect may be improved. Meanwhile, the leakage current flowing from the second pixel unit 2 to the first pixel unit 1 is reduced, so that more current can flow to the second pixel unit 2, the second pixel unit 2 is easier to turn on, the probability of black screen under a monochrome gray level transition picture can be reduced, and the display effect is improved.

In some embodiments of the present disclosure, the preset voltage is smaller than the light emitting voltage of the first pixel unit 1, and at this time, the first pixel unit 1 does not emit light, so that the monochrome display effect of the second pixel unit 2 can be ensured.

It should be noted that, the display crosstalk compensation module in the present disclosure does not need to adjust the process of the display panel 10, and does not involve the change of the process cost. That is, the present disclosure can improve the RG crosstalk problem without affecting the manufacturing process and manufacturing cost of the display panel 10.

The embodiment of the present disclosure also provides a display crosstalk compensation method, fig. 6 shows a flowchart of the display crosstalk compensation method of the present disclosure, and as shown in fig. 6, the compensation method may include steps S110 to S130, where:

step S110, a display panel is provided, the display panel comprises a first display area, the first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the luminous colors of the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer;

Step S120, detecting gray-scale values of the first pixel unit and the second pixel unit to obtain a first gray-scale value corresponding to the first pixel unit and a second gray-scale value corresponding to the second pixel unit;

When the second gray scale value is larger than the first gray scale value, the first gray scale value is compensated, so that the first gray scale value is converted into a third gray scale value, and the third gray scale value is smaller than the starting gray scale of the first pixel unit.

According to the display crosstalk compensation method, when the second gray scale value corresponding to the second pixel unit is larger than the first gray scale value corresponding to the first pixel unit, the second pixel unit emits light, the first pixel unit does not emit light, and at the moment, the voltage difference between the first pixel unit and the second pixel unit is larger; by compensating the first gray scale value corresponding to the first pixel unit, the gray scale value of the first pixel unit is converted into the third gray scale value, the voltage difference between the first pixel unit and the second pixel unit can be reduced, the leakage current flowing to the first pixel unit from the second pixel unit can be reduced, the brightness starting gray scale value of the second pixel unit can be reduced, the gray scale corresponding to the second pixel unit which cannot be started before is started, the crosstalk between the first pixel unit and the second pixel unit can be reduced, and the display effect is improved. Meanwhile, the leakage current flowing from the second pixel unit to the first pixel unit is reduced, so that more current can flow to the second pixel unit, the second pixel unit is easier to turn on, the probability of black screen under a monochrome gray level transition picture can be reduced, and the display effect is improved. In addition, the third gray level value is smaller than the on-luminance gray level of the first pixel unit, so that the first pixel unit always does not emit light when the second pixel unit emits light, and the monochrome display effect can be ensured.

The following details of each step of the display crosstalk compensation method of the present disclosure and specific details thereof are described:

As shown in fig. 6, in step S110, a display panel is provided, the display panel including a first display area including a first pixel unit and a second pixel unit, the first pixel unit and the second pixel unit having different emission colors, the first pixel unit and the second pixel unit sharing the same common layer.

The display panel can comprise a display area and a non-display area, wherein the display area can be rectangular, circular, elliptical or polygonal, and the like, and pixel units can be arranged in the display area. The non-display area may be located at least one side of the display area, and the non-display area may be used to arrange driving circuits for controlling pixel units in the display area and gate lines connected to the pixel units.

In some embodiments of the present disclosure, the number of display regions may be plural, wherein one display region may be a first display region, and another display region different from the first display region may be a second display region, and the second display region may be adjacent to the first display region and may have a brightness greater than that of the first display region.

In one exemplary embodiment of the present disclosure, the first display region may include a first pixel unit 1 and a second pixel unit 2, and the first pixel unit 1 and the second pixel unit 2 may be disposed side by side and adjacently distributed. As shown in fig. 5, each of the first pixel unit 1 and the second pixel unit 2 may include an anode 101, a hole injection layer 102, a hole transport layer 103, a light emitting layer 104, an electron transport layer 105, a cathode 106, and the like. The first pixel unit 1 and the second pixel unit 2 may share the same common layer, for example, the common layer may be any one of the hole transport layer 103 or the hole injection layer 102, or the common layer may include the hole transport layer 103 or the hole injection layer 102. In the process of manufacturing the display panel 10, the common layer of the first pixel unit 1 and the second pixel unit 2 can be simultaneously formed through the same process, which can help to simplify the process and reduce the production cost. When a voltage is applied to the first pixel unit 1 or the second pixel unit 2, the pixel unit to which the voltage is applied may leak electricity to the other pixel unit through the common layer.

In one exemplary embodiment of the present disclosure, the light emission colors of the first pixel unit 1 and the second pixel unit 2 are different. For example, the light emitted from the first pixel unit 1 may be red light, and the light emitted from the second pixel unit 2 may be green light; or the light emitted from the first pixel unit 1 may be green light, and the light emitted from the second pixel unit 2 may be red light. The first pixel unit 1 and the second pixel unit 2 may not emit light at the same time, i.e., in the first display area, the first pixel unit 1 and the second pixel unit 2 may display in a single color. It should be noted that the first display area may include a plurality of first pixel units 1 and a plurality of second pixel units 2.

As shown in fig. 6, in step S120, the gray-scale values of the first pixel unit 1 and the second pixel unit 2 are detected to obtain a first gray-scale value corresponding to the first pixel unit 1 and a second gray-scale value corresponding to the second pixel unit 2.

In the picture display process, whether a gray-scale picture displayed by the first pixel unit 1 or the second pixel unit 2 in a single color exists in the first display area can be detected in real time through the compensation component 3, when the compensation component 3 detects that the gray-scale picture displayed by the first pixel unit 1 or the second pixel unit 2 in a single color exists, a first gray-scale value corresponding to the first pixel unit 1 and a second gray-scale value corresponding to the second pixel unit 2 can be obtained, the compensation component 3 can also compare the first gray-scale value with the second gray-scale value, and when the second gray-scale value is obviously larger than the first gray-scale value, the second pixel unit 2 can be judged to emit light, and the first pixel unit 1 does not emit light; or when the first gray level is significantly larger than the second gray level, it may be determined that the first pixel unit 1 emits light and the second pixel unit 2 does not emit light. For example, the compensation device 3 may be disposed in a non-display area, and the compensation device 3 may be a driving chip.

As shown in fig. 6, in step S130, when the second gray level is greater than the first gray level, the first gray level is compensated to convert the first gray level into a third gray level, and the third gray level is less than the on-luminance gray level of the first pixel unit 1.

The gray-scale compensation value corresponding to each gray-scale value in the first display region may be stored in the storage device 4. For example, a plurality of binding points may be selected from all the corresponding gray-scale values in the first display area, for example, the number of binding points may be 2,3,4, 5 or 6, and of course, the number of binding points may be other values, which are not listed here. The linear interpolation compensation can be performed on each gray-scale value positioned between two adjacent binding points, so that each gray-scale value has a compensation value corresponding to the gray-scale value. Each gray-scale value and the compensation value corresponding to each gray-scale value may be stored in the storage device 4 in the form of a table. When a certain gray level value needs to be compensated, the compensation value corresponding to the gray level value can be directly obtained in a table look-up mode so as to compensate the gray level value. The storage element 4 may be provided in the non-display area, for example, it may be fixed to the flexible substrate 100 in the non-display area.

For example, the gray-level compensation value may be a gray-level value that does not turn on the pixel unit, for example, the gray-level compensation value may be 1, 2,3, 4, 5 or 6, etc., but other values are also possible and are not listed here. As long as the addition of the gray-scale compensation value and the gray-scale value before compensation corresponding thereto does not turn on the pixel unit corresponding thereto.

In some embodiments of the present disclosure, the display panel 10 may be divided into a plurality of display regions of different display brightness according to display brightness levels (Digital Brightness Value, DBV) of different regions in the display panel 10, the first display region and the second display region being two of the display regions. All the gray scale values in each display area can be correspondingly provided with a gray scale compensation value. For example, the brightness level of the first display area may be 0-1323 and the brightness level of the second display area may be 1324-3515. The number of binding points corresponding to R pixels in the first display area and the second display area may be 5, and the 5 binding points may be (0, 32, 0), (0, 64, 0), (0, 128, 0), (0, 192,0), and (0, 255, 0), respectively. The gray-scale compensation value corresponding to each binding point can be as follows:

In some embodiments of the present disclosure, when the second gray level value is far greater than the first gray level value, it may be determined that the second pixel unit 2 needs to be turned on, at which time, the first pixel unit 1 does not need to be turned on (i.e., the second pixel unit 2 emits light and the first pixel unit 1 does not emit light). The first gray level may be compensated to convert the first gray level into a third gray level, and it should be noted that the third gray level may be smaller than the on-luminance gray level of the first pixel unit 1, and when the first gray level is converted into the third gray level, the first pixel unit 1 is still not on (i.e. the first pixel unit 1 does not emit light and the second pixel unit 2 emits light in a single color). For example, when compensating the first gray level, the compensation component 3 may call the table stored in the storage component 4, further obtain the gray level compensation value corresponding to the first gray level by looking up a table, and compensate the first gray level according to the gray level compensation value corresponding to the first gray level, so as to obtain the third compensation value.

In some embodiments of the present disclosure, compensating the first gray scale value to convert the first gray scale value into a third gray scale value, the third gray scale value being smaller than the on-luminance gray scale of the first pixel unit 1 (i.e., step S130) includes:

After the preset voltage is applied to the first pixel unit 1, the voltage difference between the first pixel unit 1 and the second pixel unit 2 can be reduced, leakage current flowing to the first pixel unit 1 from the second pixel unit 2 through the public layer can be reduced, the brightness starting gray scale value of the second pixel unit 2 can be reduced, gray scales corresponding to the second pixel unit 2 which cannot be started before are started, crosstalk between the first pixel unit 1 and the second pixel unit 2 can be reduced, and display effect is improved. Meanwhile, the leakage current flowing from the second pixel unit 2 to the first pixel unit 1 is reduced, so that more current can flow to the second pixel unit 2, the second pixel unit 2 is easier to turn on, the probability of black screen under a monochrome gray level transition picture can be reduced, and the display effect is improved.

In some embodiments of the present disclosure, the preset voltage is smaller than the light emitting voltage of the first pixel unit 1, and at this time, the first pixel unit 1 does not emit light, so that the monochrome display effect of the second pixel unit 2 can be ensured.

The compensation method of the display crosstalk of the present disclosure is further described below by way of specific embodiments:

The method can improve the phenomenon that black blocks similar to mosaics appear on two sides of a picture area, wherein the middle position of the picture in the related technology is 64 gray scale, the left side and the right side of the picture are provided with 64-0 gray scale transition areas, and the method comprises the following steps of:

When the compensation component 3 recognizes that the gray level value of the monochrome 16 gray level G pixel unit is (0,16,0) in the first display area, the compensation value of the gray level value of the pixel unit can be obtained through a table look-up mode, the gray level of the RGB displayed by the pixel unit can be converted into (3,16,0) according to the compensation value, at this time, the current which does not turn on the R pixel unit is added to the R pixel unit, the voltage difference between the R pixel unit and the G pixel unit can be reduced due to the increase of the current, the leakage current of the G pixel unit to the R pixel unit through the common layer can be reduced, the turn-on gray level of the G pixel unit can be reduced, the gray level corresponding to the G pixel unit which cannot be turned on before is turned on, and the gray level transition of the monochrome G pixel unit picture appears on the left and right side edges of the picture (as shown in fig. 7). Compared with fig. 1, the black blocks on the left side and the right side of the picture disappear like mosaic, and the display effect is obviously improved.

It should be noted that, the display effects of the display panels 10 manufactured in different batches or the display panels 10 manufactured through different processes may be different under different brightness conditions, and the gray-scale compensation values may be set for each point in different brightness areas of the display panels 10 manufactured in different batches or the display panels 10 manufactured through different processes according to the display crosstalk compensation method of the present disclosure, so as to improve the RG crosstalk problem in different display panels 10 by using the display crosstalk compensation method of the present disclosure.

It should be noted that although the various steps of the crosstalk compensation method are depicted in the present disclosure in a particular order in the figures, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps must be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

The embodiment of the disclosure further provides a display device, which may include the display crosstalk compensation module in any of the above embodiments, and specific details and beneficial effects of the display device have been described in the embodiments of the corresponding display crosstalk compensation module, so that details are not repeated herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A display crosstalk compensation module, comprising:

The display panel comprises a display area and a non-display area, wherein the display area comprises a first display area, the first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer;

The compensation component is arranged on the non-display area and is used for detecting the gray scale values of the first pixel unit and the second pixel unit so as to obtain a first gray scale value corresponding to the first pixel unit and a second gray scale value corresponding to the second pixel unit; the compensation component is further configured to compensate the first gray level when the second gray level is greater than the first gray level, so that the first gray level is converted into a third gray level, and the third gray level is less than the bright starting gray level of the first pixel unit.

2. The compensation module of claim 1, wherein the display panel further comprises a second display region, the second display region being disposed adjacent to the first display region, the second display region having a brightness greater than a brightness of the first display region.

3. The compensation module according to claim 1 or 2, wherein the light emitted from the first pixel unit is red light, and the light emitted from the second pixel unit is green light; or the light emitted by the first pixel unit is green light, and the light emitted by the second pixel unit is red light.

4. A compensation module according to claim 3, wherein the display panel comprises a plurality of display areas, all gray-scale values in each display area are provided with gray-scale compensation values corresponding to the gray-scale values, and the compensation module stores the gray-scale compensation values corresponding to all the gray-scale values in each display area;

the compensation component can compensate the first gray scale value according to the gray scale compensation value corresponding to the first gray scale value.

5. A display crosstalk compensation method, the compensation method comprising:

Providing a display panel, the display panel comprising a first display area,

The first display area comprises a first pixel unit and a second pixel unit, the luminous colors of the first pixel unit and the luminous colors of the second pixel unit are different, and the first pixel unit and the second pixel unit share the same common layer;

Detecting the gray scale values of the first pixel unit and the second pixel unit to obtain a first gray scale value corresponding to the first pixel unit and a second gray scale value corresponding to the second pixel unit;

When the second gray scale value is larger than the first gray scale value, the first gray scale value is compensated, so that the first gray scale value is converted into a third gray scale value, and the third gray scale value is smaller than the starting gray scale of the first pixel unit.

6. The compensation method of claim 5, wherein compensating the first gray scale value to convert the first gray scale value to a third gray scale value, the third gray scale value being less than an on-luminance gray scale of the first pixel unit comprises:

and applying a preset voltage to the first pixel unit, wherein the preset voltage is smaller than the light-emitting voltage of the first pixel unit.

7. The compensation method of claim 5, wherein the display panel further comprises a second display region, the second display region being disposed adjacent to the first display region, the second display region having a brightness greater than a brightness of the first display region.

8. The method of any one of claims 5-7, wherein the light emitted from the first pixel unit is red light and the light emitted from the second pixel unit is green light; or the light emitted by the first pixel unit is green light, and the light emitted by the second pixel unit is red light.

9. The compensation method of claim 8, wherein the compensation method further comprises:

Selecting a plurality of binding points from all corresponding gray scale values in the first display area, respectively setting corresponding gray scale compensation values for each binding point, and performing linear interpolation compensation on each gray scale value between two adjacent binding points so that each gray scale value has the corresponding gray scale compensation value;

the compensating the first gray scale value includes:

and compensating the first gray scale value according to the gray scale compensation value corresponding to the first gray scale value.

10. A display device comprising the display crosstalk compensation module according to any one of claims 1-4.