CN115662324A - Display compensation method and device of flexible display screen and display device - Google Patents
Display compensation method and device of flexible display screen and display device Download PDFInfo
- Publication number
- CN115662324A CN115662324A CN202211305370.7A CN202211305370A CN115662324A CN 115662324 A CN115662324 A CN 115662324A CN 202211305370 A CN202211305370 A CN 202211305370A CN 115662324 A CN115662324 A CN 115662324A
- Authority
- CN
- China
- Prior art keywords
- display screen
- flexible display
- ambient light
- compensation coefficient
- folding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a display compensation method and device of a flexible display screen and a display device, wherein the display compensation method of the flexible display screen comprises the following steps: acquiring display associated parameters of a flexible display screen; the display related parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness; acquiring a target compensation coefficient according to the display correlation parameter; and compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen, improve the crease problem of the flexible display screen and improve the display effect of the flexible display screen.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display compensation method and device of a flexible display screen and a display device.
Background
The flexible display screen has the characteristics of folding and curling, so that the product is more portable, the design is more novel, and the flexible display screen is more and more widely used in the design of portable equipment.
At present, the display compensation method for improving the folding traces of the flexible display screen has poor effect, so that the display difference between a bending area and a non-bending area of the flexible display screen is still large, and the experience of consumers of folding display products is reduced.
Disclosure of Invention
The embodiment of the invention provides a display compensation method and device of a flexible display screen and a display device, which are used for improving the crease problem of the flexible display screen and improving the display effect of the flexible display screen.
According to an aspect of the present invention, there is provided a display compensation method of a flexible display screen, including:
acquiring display associated parameters of a flexible display screen; the display association parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness;
acquiring a target compensation coefficient according to the display correlation parameter;
and compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
Optionally, before obtaining the display related parameters of the flexible display screen, the method includes:
acquiring a facial image of a target object through an image acquisition module;
analyzing the facial image, and determining the position of the eye of the target object in the facial image and the interpupillary distance;
determining a range interval to which an included angle between a sight line and a perpendicular line of the flexible display screen belongs according to the position of the eye of the target object in the face image;
and determining an included angle between the sight line and the flexible display screen from the range interval according to the interpupillary distance of the target object in the face image.
Optionally, before obtaining the display related parameters of the flexible display screen, the method further includes:
recording the times of folding and unfolding the flexible display screen or the times of folding and unfolding the flexible display screen in actual use through a folding counting module;
and determining the folding times of the flexible display screen according to the times of unfolding the flexible display screen after being folded or the times of folding the flexible display screen after being unfolded.
Optionally, an ambient light collecting module is disposed outside the edge of the flexible display screen; the environment light acquisition module comprises an upper photosensitive film layer and a lower photosensitive film layer, and the environment light irradiates the whole light receiving surface of the upper photosensitive film layer; along the projection direction of the ambient light, the upper photosensitive film layer forms a projection in the light receiving surface of the lower photosensitive film layer, and the ambient light irradiates part of the light receiving surface of the lower photosensitive film layer;
determining an angle of incidence of ambient light on the flexible display screen, comprising:
respectively detecting current values generated by the upper photosensitive film layer and the lower photosensitive film layer under the irradiation of ambient light;
and determining the incident angle of the ambient light according to the current values of the upper photosensitive film layer and the lower photosensitive film layer and the distance between the upper photosensitive film layer and the lower photosensitive film layer in the direction perpendicular to the flexible screen.
Optionally, the obtaining a target compensation coefficient according to the display related parameter includes:
acquiring a target compensation coefficient matched with each sub-pixel in the bending area from a compensation coefficient database according to display related parameters of the flexible display screen; the compensation coefficient database comprises a plurality of parameter combinations, and for each sub-pixel in the bending area, each parameter combination corresponds to one compensation coefficient; the parameters in each parameter combination comprise a sight line included angle reference value, a folding frequency reference value, an ambient light incident angle reference value and an ambient light brightness reference value; the compensation coefficient database is provided with a plurality of sight line included angle reference values of different gears, a plurality of folding times reference values of different gears, a plurality of ambient light incident angle reference values of different gears and a plurality of ambient light brightness reference values of different gears; the parameter combinations in the compensation coefficient database comprise all parameter combination modes;
preferably, the display related parameters further include a light emitting color and/or a gray scale of the sub-pixel in the bending region; the parameters in each parameter combination further include emission color information and/or grayscale reference values of the sub-pixels.
Optionally, obtaining a target compensation coefficient matched with each sub-pixel in the bending area from the compensation coefficient database according to the display related parameters of the flexible display screen, including:
determining an upper limit value of a gear where a visual angle of a user on the flexible display screen is located in the reference values of the included angles of the sight lines of the different gears;
determining an upper limit value of a gear where the folding times of the flexible display screen are located in the folding time reference values of a plurality of different gears;
determining an upper limit value of a gear where the ambient light incidence angle is located in the ambient light incidence angle reference values of a plurality of different gears;
determining an upper limit value of a gear where the ambient light brightness is located in the ambient light brightness reference values of a plurality of different gears;
and determining a target compensation coefficient of each sub-pixel in the bending area according to an upper limit value of a gear where a visual angle of a user on the flexible display screen is located, an upper limit value of a gear where the folding times of the flexible display screen are located, an upper limit value of a gear where an ambient light incident angle is located and an upper limit value of a gear where ambient light brightness is located.
Optionally, obtaining a target compensation coefficient matched with each sub-pixel in the bending area from a compensation coefficient database according to the compensation coefficient influence parameter of the flexible screen, including:
determining a sight angle reference value which is closest to the visual angle of a user on the flexible display screen from the sight angle reference values of a plurality of different gears;
determining a folding number reference value which is closest to the folding number of the flexible display screen in the folding number reference values of the different gears;
determining an ambient light incident angle reference value which is closest to an incident angle of ambient light on the flexible display screen in the ambient light incident angle reference values of the different gears;
determining the environmental light brightness reference value which is closest to the environmental light brightness in the environmental light brightness reference values of the different gears;
and determining a target compensation coefficient of each sub-pixel in the bending area according to the closest sight line included angle reference value, the closest folding times reference value, the closest ambient light incidence angle reference value and the closest ambient light brightness reference value.
Optionally, compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient includes:
determining target display data of each sub-pixel according to the original display data of each sub-pixel in the bending area and the target compensation coefficient corresponding to each sub-pixel;
and controlling each sub-pixel in the bending area to display according to the corresponding target display data.
According to another aspect of the present invention, there is provided a display compensation apparatus of a flexible display screen, including:
the parameter acquisition module is used for acquiring display related parameters of the flexible display screen; the display related parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness;
the compensation coefficient acquisition module is used for acquiring a target compensation coefficient according to the display correlation parameter;
and the light-emitting compensation module is used for compensating the sub-pixels in the bending part of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
According to another aspect of the present invention, there is provided a display device, comprising a flexible display screen, an image acquisition module, an ambient light acquisition module, a folding counting module, and a display compensation device of the flexible display screen according to any embodiment of the present invention;
the image acquisition module is used for determining a visual angle on the flexible display screen; the environment light acquisition module is used for determining the brightness of environment light and the incident angle of the environment light on the flexible display screen; the folding counting module is used for recording the times of folding and unfolding of the flexible display screen in actual use.
According to the technical scheme of the embodiment of the invention, the detection of the incident angle and brightness of the ambient light, the detection of the visual angle of the flexible display screen and the determination of the folding times of the flexible display screen are added in the display process of the flexible display screen, and the compensation effect of the flexible display screen is optimized according to the information of the ambient light, the included angle between the sight line and the display screen and the folding times of the flexible display screen, so that the influence of the ambient light, the visual angle and the folding times on the crease of the display bending area is reduced, the display difference between the bending area and the non-bending area of the flexible display screen is reduced, the crease problem of the flexible display screen is improved, and the display effect of the flexible display screen is improved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
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 some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a portion of a flexible display screen provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of light paths of ambient light at different positions in a bending region of a flexible display according to an embodiment of the present invention;
FIG. 3 is a graphical representation of the screen brightness as a function of position along the X direction for the configuration of FIG. 1;
fig. 4 is a flowchart of a display compensation method for a flexible display screen according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating an incident angle of ambient light on the flexible display screen and an included angle between a line of sight and the flexible display screen according to an embodiment of the present invention;
FIG. 6 is a flowchart of another display compensation method for a flexible display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a face image captured at different viewing angles according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an ambient light collection module according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of another ambient light collection module provided in an embodiment of the present invention;
FIG. 11 is a flowchart illustrating another display compensation method for a flexible display panel according to an embodiment of the present invention;
fig. 12 is a block diagram of a display compensation apparatus of a flexible display panel according to an embodiment of the present invention;
fig. 13 is a block diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As background art, the flexible display screen has the characteristics of being foldable and curled, so that the product is more portable and the design is more novel, and the flexible display screen is more and more widely used in the design of portable equipment. Because retes such as the substrate of flexible display screen and apron are mostly PI (polyimide) material, produce plastic deformation easily after folding many times, the bending region of flexible display screen at this moment will not resume initial flat state at the screen body state of spreading for folding trace can appear in the flexible display screen, and the image quality of demonstration receives the influence.
The crease compensation method in the related art includes: acquiring an image of a screen through an image acquisition device to obtain an image containing the screen; through carrying out identification on the crease area on the collected image, after the crease area is identified, acquiring an adjacent area of the crease area based on the crease area. And then taking at least one of the crease area and the adjacent area as a target area to be subjected to pixel value adjustment. Acquiring an adjustment coefficient of a pixel value corresponding to the target area; and adjusting the pixel value of the target area based on the adjustment coefficient to perform display compensation. However, this method of display compensation is poor in effect, resulting in poor display results after brightness compensation. The inventors of the present invention found that this solution does not involve the detection of the incident angle and brightness of the ambient light, and cannot solve the influence of the ambient light on the fold. In addition, the effect of screen display is collected in an image acquisition mode, an additional telescopic external camera (or a detachable external camera) is needed to capture the effect of a display picture in due time, the angle for capturing the effect of the display picture is relatively fixed, and the multi-view condition of a consumer using a flexible folding product cannot be simulated; and meanwhile, the influence of the folding times on the display screen effect is not considered.
Although the folding lines of the bending area of the flexible display screen are shallow under the support of the existing support structure (such as a hinge design), the screen is lightened under the condition of weak ambient light or in a dark room, and consumers are difficult to perceive the existence of the folding lines of the display area from various larger visual angles (such as the angle between the visual line and the perpendicular line of the center of the screen body is 85 degrees). However, in the case of strong ambient light (under outdoor or indoor light conditions), the superposition of the ambient light and the light emitted by the flexible display screen will make the crease lines of the display area obvious, and the obvious degree of the crease lines is related to the angle between the ambient light and the screen body and the angle between the observed sight line and the screen body.
FIG. 1 is a schematic view of a portion of a flexible display provided by an embodiment of the present invention; FIG. 2 is a schematic diagram of light paths of ambient light at different positions in a bending region of a flexible display according to an embodiment of the present invention; referring to fig. 1 to 2, under the influence of ambient light a, the brightness of the incident light region a rises due to the superposition of ambient light; the brightness of the backlight area b is reduced because the ambient light A' cannot be reflected to human eyes through the screen body; the upper part of the bending area is bright and the lower part is dark, so that the crease mark becomes obvious. Fig. 3 is a schematic diagram of a curve of the structure shown in fig. 1 in which the screen brightness changes with position along the X direction, and referring to fig. 3, under the influence of ambient light, the screen brightness changes with position and shows the characteristics that the brightness of the incident light region rises and the brightness of the backlight region falls. If the user viewing angle is not changed, taking the incident direction of the ambient light B as an example, the upper portion of the screen bending region becomes dark and the lower portion becomes bright, and the curve of the screen brightness along with the position is opposite to that in fig. 3. Therefore, it is necessary to detect display related parameters such as ambient light incident angle, brightness, viewing angle, etc., and then perform corresponding compensation display on the bending area of the screen body according to the parameter information, so as to improve the crease of the bending area.
In view of this, an embodiment of the present invention provides a display compensation method for a flexible display screen, where fig. 1 is a schematic partial view of a flexible display screen provided in the prior art, and referring to fig. 1, the display compensation method for a flexible display screen includes:
s110, obtaining display related parameters of the flexible display screen; the display related parameters comprise an included angle between the sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of the environment light on the flexible display screen and the environment light brightness.
Specifically, fig. 5 is a schematic diagram of an incident angle of ambient light on the flexible display screen and an included angle between a sight line and the flexible display screen according to an embodiment of the present invention, and referring to fig. 5, in a process of using the flexible display screen, in consideration of an actual use situation of the flexible display screen, display related parameters such as an incident angle α of the ambient light on the flexible display screen, an ambient light brightness L, an included angle β between the sight line and the flexible display screen, and a folding number N of the flexible display screen in an actual use process of the flexible display screen are obtained. The display related parameter may be understood as an influencing parameter related to the flexible display screen display.
And S120, acquiring a target compensation coefficient according to the display correlation parameter.
Specifically, the compensation coefficients under different numerical combinations of α, L, β, and N can be obtained in advance by using a test product at the product debugging stage. Since the test product and the mass-produced product have the same laminate structure, the product used for the test has the same fold after being folded the same number of times as the actual product is folded the same number of times. The compensation factor determined from the test product, a mass-produced product can be suitable. The product of volume production need not external image acquisition device and carries out real-time scanning to the crease appearance in the user use, has the characteristics of convenient and easy implementation. After obtaining the compensation coefficients under different combinations of values α, L, β, N, S120 specifically includes: and acquiring a compensation coefficient corresponding to the display correlation parameter from the compensation coefficients under different numerical combinations of alpha, L, beta and N, wherein the compensation coefficient is a target compensation coefficient.
And S130, compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
Specifically, the compensated display data is determined according to the original display data of the flexible display screen and the acquired target compensation coefficient. And sending the compensated display data serving as target display data to the flexible display screen so as to control the screen to display according to the compensated display data. Through adding the detection to the ambient light angle and luminance, the visual angle detection to the flexible display screen and the determination of the folding number of times of the flexible display screen in the flexible display screen display process, and optimize the compensation effect according to the information of the ambient light, the visual line and the display screen included angle and the folding number of times of the flexible display screen, the influence of the ambient light, the visual angle and the folding number of times on the crease of the display bending area can be reduced, and the display difference of the bending area and the non-bending area of the flexible display screen is reduced.
The display compensation method of the flexible display screen provided by the embodiment of the invention comprises the following steps: acquiring display associated parameters of a flexible display screen; the display related parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness; acquiring a target compensation coefficient according to the display correlation parameter; and compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient. The method has the advantages that the detection of the incident angle and brightness of the ambient light, the visual angle detection of the flexible display screen and the determination of the folding times of the flexible display screen are added, the compensation effect is optimized according to the information of the ambient light, the included angle between the sight and the display screen, the folding times of the flexible display screen and other parameters, the influence of the ambient light, the visual angle and the bending times on the crease of the display bending area is reduced, and the display difference of the bending area and the non-bending area of the flexible display screen is reduced.
Fig. 6 is a flowchart of another display compensation method for a flexible display screen according to an embodiment of the present invention, and referring to fig. 6, the display compensation method for the flexible display screen includes:
s210, obtaining a visual angle on the flexible display screen determined by the image acquisition module, an ambient light brightness and an incident angle of the ambient light on the flexible display screen determined by the ambient light acquisition module, and the folding times of the flexible display screen determined by the folding counting module.
Specifically, fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention, and referring to fig. 7, an ambient light collection module 200, an image collection module 300, and a folding counting module (not shown) may be disposed in the display device. The image acquisition module 300 is used for determining an included angle between a sight line and the flexible display screen, the ambient light acquisition module 200 is used for determining the brightness of ambient light and an incident angle of the ambient light on the flexible display screen, and the folding counting module is used for recording the times of folding the flexible display screen after folding or the times of folding the flexible display screen after unfolding in actual use, so as to determine the folding times of the flexible display screen. After the display compensation device of the flexible display screen acquires display correlation parameters such as an included angle between a sight line and the flexible display screen, folding times of the flexible display screen, an incident angle of ambient light on the flexible display screen, ambient light brightness and the like, display compensation is performed on a bending area of the flexible display screen according to the display correlation parameters, and display difference between the bending area and a non-bending area is reduced.
Optionally, the determining, by the image acquisition module, an included angle between the line of sight and the flexible display screen includes:
acquiring a facial image of a target object through an image acquisition module;
analyzing the face image, and determining the position of the eye of the target object in the face image and the interpupillary distance;
determining a range interval to which an included angle between a sight line and a perpendicular line of the flexible display screen belongs according to the position of the eye of the target object in the face image;
and determining an included angle between the sight line and the flexible display screen from the range interval according to the interpupillary distance of the target object in the face image.
Specifically, a face image of the target object is acquired by an image acquisition device. For example, the image acquisition device includes a front camera of the display device. The method comprises the steps that a front camera of a flexible display screen timely collects a face image, the face image is analyzed and processed, and the position of eyes of a target object in the face image and the interpupillary distance are determined; and determining an included angle between the sight line and the flexible display screen by judging the position of the eyes in the face image and the interpupillary distance. Fig. 8 is a schematic diagram of facial images collected at different viewing angles according to an embodiment of the present invention, and referring to fig. 8, a flexible display screen is initially in a vertical state 25cm in front of the face, the middle position of the screen is flush with the eyes, and a camera is disposed on the upper portion of the flexible display screen. If the eye sight line and the normal line of the screen form an angle of 45 degrees (the included angle between the sight line and the flexible display screen is 45 degrees), the face and the eyes collected by the camera are positioned at the upper part of the whole collected picture and occupy larger area; the interpupillary distance is also longer, determined by the number of sub-pixels occupied. If the eye sight line and the normal line of the screen form an angle of 0 degree (the included angle between the sight line and the flexible display screen is 90 degrees), the face and the eyes collected by the camera are positioned in the middle of the whole collected picture and occupy the centered area; the interpupillary distance is also centered, determined by the number of sub-pixels occupied. If the eye sight line and the normal line of the screen form an angle of-45 degrees (the included angle between the sight line and the flexible display screen is 135 degrees), the face and the eyes collected by the camera are positioned at the lower part of the whole collected picture and occupy smaller area; the interpupillary distance is also short (the effect of the near-far distance of the image pickup imaging) determined by the number of occupied pixels. Therefore, whether the included angle between the sight line and the screen is an acute angle or an obtuse angle can be judged through the position of the eyes on the screen, and the specific numerical value of the included angle between the sight line and the flexible display screen is determined according to the distance between the pupils in the image. In the process of determining the included angle between the sight line and the flexible display screen according to the distance between the pupils in the image, a specific included angle between the sight line and the screen can be obtained according to the ratio of the number N of the sub-pixels included between the pupils in the image to the total number M of the sub-pixels in one line in the whole acquisition picture, for example, N/M =0.3, and the corresponding included angle is 45 °. In the product debugging stage, N/M values corresponding to different visual angles are respectively determined to form a database, then the N/M values are obtained through detection in practical application, and the database is inquired to obtain the corresponding angles. For example, the rotating display screen records the numerical values of N/M respectively in a plurality of angle setting gears such as 5 degrees, 15 degrees, 45 degrees, 90 degrees, 135 degrees and the like to form a database. Then, detecting in practical application to obtain N/M, and inquiring a database to obtain a corresponding angle; it should be noted that each angle may correspond to a ratio or a ratio interval.
Optionally, the determining, by the ambient light collecting module, an incident angle of ambient light on the flexible display screen includes:
respectively detecting current values generated by the upper photosensitive film layer and the lower photosensitive film layer under the irradiation of ambient light;
and determining the incident angle of the ambient light according to the current values of the upper photosensitive film layer and the lower photosensitive film layer and the distance between the upper photosensitive film layer and the lower photosensitive film layer in the direction perpendicular to the flexible screen.
Specifically, the ambient light collecting module 200 is disposed outside the edge of the flexible display screen. Fig. 9 is a schematic structural diagram of an ambient light collection module according to an embodiment of the present invention, fig. 10 is a schematic structural diagram of another ambient light collection module according to an embodiment of the present invention, and referring to fig. 9 to fig. 10, the ambient light collection module includes an upper photosensitive film layer and a lower photosensitive film layer, and the upper photosensitive film layer and the lower photosensitive film layer are specifically: orthographic projections of the upper photosensitive film layer and the lower photosensitive film layer in the direction perpendicular to the flexible display screen are only partially overlapped or not overlapped at all. The ambient light irradiates the whole light receiving surface of the upper photosensitive film layer 12; along the projection direction of the ambient light, the upper photosensitive film layer 12 forms a projection on the light receiving surface of the lower photosensitive film layer 11, and the ambient light irradiates part of the light receiving surface of the lower photosensitive film layer 11; the ratio of the actual light receiving areas of the upper photosensitive film layer 12 and the lower photosensitive film layer 11 is equal to the ratio of the actual irradiation length L2 of the ambient light in the upper photosensitive film layer 12 to the actual irradiation length L1 of the ambient light in the lower photosensitive film layer 11.
Referring to fig. 9, the two photosensitive film layers are disposed in parallel and have the same shape and area. In the direction perpendicular to the light receiving surface of the photosensitive device, the upper photosensitive film layer 12 and the lower photosensitive film layer 11 have an overlapping region, and the application formula is as follows,
S 1 practice of /S 2 ＝K 1 *I 1 /K 2 *I 2 ＝L 1 practice of /L 2 ；
Tanα＝x/[L Overlap -(L 1 -L 1 practice of )]；
Wherein S is 1 practice of Is a lower photosensitive film layer 11Current actual light receiving area; s. the 2 The light receiving area of the upper photosensitive film layer 12 is the light receiving area, and the light receiving surface of the upper photosensitive film layer 12 is always in a completely illuminated state; k is 1 The light sensitivity coefficient of the lower light sensitive film layer 11; k 2 The light sensitivity coefficient of the upper photosensitive film layer 12 is the same as that of the two photosensitive film layers; i is 1 The current value generated by the lower photosensitive film layer 11 under the irradiation of ambient light; i is 2 The current value generated by the upper photosensitive film layer 12 under the irradiation of ambient light; l is 1 practice of Is the actual irradiation length of incident light on the light receiving surface of the lower photosensitive film layer 11, L 1 The theoretical irradiation length on the light receiving surface of the lower photosensitive film layer 11 (the irradiation length of the light receiving surface in a completely illuminated state); l is 2 The irradiation length of the incident light on the light receiving surface of the upper photosensitive film layer 12; x is the vertical distance between the light receiving surfaces of the two photosensitive film layers; alpha is the incident angle of the incident light; l is Overlap The overlapping length of the two photosensitive film layers in the direction perpendicular to the light receiving surface is shown.
In the formula, K 1 、K 2 、L 1 、L 2 、L Overlap X is a setting parameter of the photosensitive film layer and is a known quantity; i is 1 And I 2 For the detected quantity, i.e. the specific numerical value, can be obtained; l is 1 practice of Can be according to I 1 And I 2 And (4) calculating. Mixing L with 1 practice of Substituted into the formula Tan α = x/[ L Overlap -(L 1 -L 1 practice of )]In this way, the incident angle α of the incident light can be calculated.
Referring to fig. 10, in the direction perpendicular to the light receiving surface of the photosensitive film, the upper photosensitive film 12 and the lower photosensitive film 11 are not overlapped, and the following formula is applied:
S 1 practice of /S 2 ＝K 1 *I 1 /K 2 *I 2 ＝L 1 practice of /L 2 ；
Tanα＝x/(L 2 +L 1 practice of )；
Wherein S is 1 practice of The current actual light receiving area of the lower photosensitive film layer 11; s. the 2 The light receiving area of the upper photosensitive film layer 12, the light receiving area of the upper photosensitive film layer 12The smooth surface is always in a completely illuminated state; k 1 The light sensitivity coefficient of the lower light sensitive film layer 11; k 2 The light sensitivity coefficient of the upper photosensitive film layer 12 is the same as that of the two photosensitive film layers; I.C. A 1 The current value generated by the lower photosensitive film layer 11 under the irradiation of ambient light; I.C. A 2 The current value generated by the upper photosensitive film layer 12 under the irradiation of ambient light; l is a radical of an alcohol 1 practice of Is the actual irradiation length of incident light on the light receiving surface of the lower photosensitive film layer 11, L 2 The irradiation length of the incident light on the light receiving surface of the upper photosensitive film layer 12; x is the vertical distance between the light receiving surfaces of the two photosensitive film layers; alpha is the incident angle of the incident ray.
In the formula, K 1 、K 2 、L 1 、L 2 X is a setting parameter of the photosensitive film layer and is a known quantity; i is 1 And I 2 The detected quantity, i.e. the specific value, can also be obtained; l is 1 practice of Can be according to I 1 And I 2 And (4) calculating. Mixing L with 1 practice of Substituted into the formula Tan α = x/(L) 2 +L 1 practice of ) In this way, the incident angle α of the incident light can be calculated.
The ambient light collection module may also be other devices or devices capable of collecting the incident angle and brightness of ambient light.
Optionally, the folding counting module determines the folding times of the flexible display screen, including:
the folding counting module is used for recording the times of unfolding the flexible display screen after the flexible display screen is folded in actual use;
and determining the folding times of the flexible display screen according to the unfolding times of the flexible display screen after being folded.
Specifically, the number of times that the flexible display screen is folded up and unfolded in actual use is recorded through the folding counting module. For example, a button for controlling the screen to automatically bounce open is arranged on the display device, and the folding counting module counts once when detecting that the button is pressed down, so that the times of folding and unfolding of the flexible display screen in actual use are recorded. And further determining the current folding times of the flexible display screen from the initial state according to the unfolding times of the flexible display screen after being folded. For example, a pressure value between the flexible display screen and the button can be detected through the pressure sensor, and when the pressure value exceeds a preset pressure, the pressure value is counted once, so that the times of folding and unfolding of the flexible display screen in actual use are recorded.
S220, taking an included angle between the sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness as display related parameters; and obtaining a target compensation coefficient according to an included angle between the sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness.
And S230, compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
According to the display compensation method of the flexible display screen, provided by the embodiment of the invention, the ambient light collection module is used for detecting the angle and the intensity of ambient light, the gain part of the incident angle and the brightness of the ambient light on the obvious degree of the crease is considered, and the crease improvement compensation algorithm under the influence of the ambient light is optimized; the image acquisition module is used for detecting the visual angle of human eyes on the flexible display screen, so that the condition that a user observes the display screen in multiple visual angles is considered; the folding counting module is used for determining the folding times of the flexible display screen, and the influence of the degree of the crease of the flexible display screen on the display of the crease area is considered. And acquiring a proper compensation coefficient according to the parameters acquired in real time to realize the purpose of real-time compensation.
Fig. 11 is a flowchart of another display compensation method for a flexible display panel according to an embodiment of the present invention, and referring to fig. 11, the display compensation method for the flexible display panel includes:
s310, obtaining display associated parameters of the flexible display screen; the display related parameters comprise an included angle between the sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of the environment light on the flexible display screen and the environment light brightness.
And S320, acquiring a target compensation coefficient matched with each sub-pixel in the bending area from the compensation coefficient database according to the display related parameters of the flexible display screen.
Specifically, the compensation coefficient database includes a plurality of parameter combinations, and each of the parameter combinations may correspond to one of the compensation coefficients for each of the sub-pixels in the inflection region. The parameters in each parameter combination comprise a reference value of the included angle of sight, a reference value of the folding times, a reference value of the incident angle of the ambient light and a reference value of the brightness of the ambient light. And the values of at least one parameter of the reference value of the included angle of sight, the reference value of the folding times, the reference value of the incident angle of the ambient light and the reference value of the brightness of the ambient light in different parameter combinations are different. The compensation coefficient database is provided with sight line included angle reference values of a plurality of different gears, folding times reference values of a plurality of different gears, ambient light incident angle reference values of a plurality of different gears and ambient light brightness reference values of a plurality of different gears; the parameter combinations in the compensation coefficient database include all parameter combination modes. It should be noted that, for the same parameter combination, the compensation coefficients corresponding to different sub-pixels in the bending region may be the same or different, and are determined by the actual debugging result.
In the debugging stage of the product, one or a plurality of flexible display screen samples are used for testing, and the compensation coefficient corresponding to each parameter combination is determined. For example, after the sample is bent N =5W times, the external image capturing camera simulates a capturing screen in the direction of the observation angle β =45 ° of the human eye to display a picture at a gray scale according to the condition that the ambient light illuminance L =300Lx and the ambient light incidence angle α =45 °. The whole flexible display screen firstly displays the picture by using the original display data, and then the camera at the position of the visual angle observed by human eyes shoots the display picture. And acquiring picture effect data displayed by the original display data according to the shot image of the display picture. And then, identifying mura information (range and degree) caused by the screen crease under the current condition according to the picture effect data, and calculating to obtain a compensation coefficient of each sub-pixel under the parameter condition. And loading a compensation coefficient on the displayed original data, then sending the data to a screen for displaying, and taking a picture by using the external image acquisition camera to obtain the display effect data of the compensated screen. Judging whether crease mura is eliminated or not according to the effect data of the display picture after screen compensation; if the compensation coefficient is eliminated, the compensation coefficient is stored; and if not, photographing again and calculating the compensation coefficient until the crease mura under the parameter condition is eliminated. And repeating the process to determine the compensation coefficient of each sub-pixel in the bending area corresponding to each parameter combination.
Illustratively, the set of the reference values of the included gaze angles for a plurality of different gears is:
β＝{15°,30°,45°,60°,75°,90°,105°,120°,135°,150°,165°}；
the set of reference values for the number of folds for a number of different gears is:
N＝{5W,10W,15W,20W}；
the set of ambient light incident angle reference values for a plurality of different gears is:
α＝{15°,30°,45°,60°,75°,90°,105°,120°,135°,150°,165°}；
the reference value set of the environmental light brightness of a plurality of different gears is as follows:
L＝{100Lx,200Lx,300Lx,400Lx,500Lx,600Lx}。
the above parameters are set in consideration of actual application, and other conditional combinations of more or fewer parameters are also possible. After all the compensation coefficients corresponding to the parameter combinations are obtained, the parameter combinations and the compensation coefficients corresponding to the parameter combinations are stored in a compensation coefficient database.
In the use process of mass-produced folding products, a target compensation coefficient matched with each sub-pixel is obtained from a compensation coefficient database according to the detected ambient light brightness L, the ambient light incidence angle alpha, the human eye visual angle beta and the folding times N of the flexible display screen.
In an embodiment of the present invention, obtaining a target compensation coefficient matched with each sub-pixel in a bending region from a compensation coefficient database according to a display related parameter of a flexible display screen includes:
determining an upper limit value of a gear where a visual angle of a user on the flexible display screen is located in the reference values of the included angles of the sight lines of the different gears;
determining an upper limit value of a gear where the folding times of the flexible display screen are located in the folding time reference values of a plurality of different gears;
determining an upper limit value of a gear where an ambient light incident angle is located in the ambient light incident angle reference values of a plurality of different gears;
determining an upper limit value of a gear where the ambient light brightness is located in the ambient light brightness reference values of a plurality of different gears;
and determining a target compensation coefficient of the sub-pixels in the bending area according to an upper limit value of a gear where a visual angle of a user on the flexible display screen is located, an upper limit value of a gear where the folding times of the flexible display screen are located, an upper limit value of a gear where an ambient light incident angle is located and an upper limit value of a gear where ambient light brightness is located.
Specifically, the corresponding reference value in the database is the upper limit value of different gears. And when the acquired alpha, L, beta and N are less than or equal to the threshold value of the corresponding gear in the actual use process, taking the compensation coefficient acquired according to the upper limit value of the gear corresponding to each parameter as the target compensation coefficient under the current parameter condition. Therefore, the target compensation coefficient of other parameter combination conditions which are not tested in the product debugging stage can be determined according to the parameter combination in the compensation coefficient database. Illustratively, taking the reference values of the parameters included in the database in the above embodiments as an example, when the flexible display screen is actually used, the detected ambient light level L =300Lx, the incident angle α =45 °, the human eye viewing angle β =45 °, and the folding number N =5W. The parameter combination formed by the parameter values belongs to the parameter combination tested in the product debugging stage, and the matched target compensation coefficient can be directly obtained from the compensation coefficient database. If the detected ambient light brightness L =180Lx, the incident angle α =20 °, the human eye viewing angle β =20 °, and the bending times N =9W, the parameter combination composed of these parameter values does not belong to the parameter combination tested in the product commissioning phase. The compensation coefficients corresponding to the combination conditions of the ambient light brightness L =200Lx, the incident angle β =30 °, the human eye viewing angle α =30 °, and the number of times of bending N =10W can be obtained from the compensation coefficient database.
In another embodiment of the present invention, obtaining a target compensation coefficient matched with each sub-pixel in a bending region from a compensation coefficient database according to a display related parameter of a flexible display screen includes:
determining a sight line included angle reference value which is closest to the visual angle of a user on the flexible display screen from the sight line included angle reference values of the different gears;
determining a folding number reference value which is closest to the folding number of the flexible display screen in the folding number reference values of the different gears;
determining an ambient light incident angle reference value which is closest to an incident angle of ambient light on the flexible display screen in the ambient light incident angle reference values of the different gears;
determining the environmental light brightness reference value which is closest to the environmental light brightness in the environmental light brightness reference values of the different gears;
and determining a target compensation coefficient of the sub-pixel in the bending area according to the closest sight line included angle reference value, the closest folding times reference value, the closest ambient light incidence angle reference value and the closest ambient light brightness reference value.
Specifically, when the actually obtained α, L, β, N are not equal to the corresponding reference values in the database, the reference values closest to the compensation database are respectively used as the numerical values of the parameters. Illustratively, the detected ambient light level L =180Lx, the incident angle α =20 °, the human eye viewing angle β =20 °, and the number of folds N =9W, do not belong to the parameter combinations tested in the product commissioning phase. Referring to the above-mentioned set of parameters, the ambient light brightness 180Lx is closest to the ambient light brightness reference value 200Lx in the compensation database; the ambient light incident angle of 20 ° is closest to the ambient light incident angle reference value of 15 ° in the compensation database; the human eye visual angle of 20 degrees is closest to the visual line clip angle reference value of 15 degrees in the compensation database; the folding times 9W are closest to the folding times reference value 10W in the compensation database. Then, the compensation coefficients corresponding to the combination conditions of the ambient light brightness L =200Lx, the incident angle α =15 °, the eye view angle β =15 °, and the number of folds N =10W are obtained from the compensation coefficient database as the target compensation coefficients of the currently detected parameter conditions. And determining the compensation coefficient of the sub-pixel in the bending area according to the closest sight line included angle reference value, the closest folding number reference value, the closest ambient light incident angle reference value and the closest ambient light brightness reference value, so that the adaptability of the compensation coefficient under the condition of parameter combination except a compensation coefficient database can be improved, and the compensation effect on the bending area of the flexible display screen is further improved.
S330, determining target display data of each sub-pixel according to the original display data of each sub-pixel in the bending area and the target compensation coefficient corresponding to each sub-pixel.
And S340, controlling each sub-pixel in the bending area to display according to the corresponding target display data.
Compensating the sub-pixels in the bending region of the flexible display screen according to the target compensation coefficient comprises: determining target display data of each sub-pixel according to the original display data of each sub-pixel in the bending area and the target compensation coefficient corresponding to each sub-pixel; and each sub-pixel in the bending area is controlled to be displayed according to the corresponding target display data, so that the targeted compensation of each sub-pixel in the bending area can be realized, and the compensation effect on the bending area of the flexible display screen is further improved.
Optionally, the display related parameters further include a light emitting color and/or a gray scale of a sub-pixel in the bending region; the parameters in each parameter combination further include emission color information and/or grayscale reference values of the sub-pixels.
Specifically, in the debugging stage of the product, when one or a plurality of flexible display screen samples are used for testing, different gray scale reference values and/or different light emitting colors can be set, so that the parameters in each parameter combination further include light emitting color information and/or gray scale reference values of the sub-pixels. For example, after bending the test sample N =5W times, setting the ambient light brightness L =300Lx, the incident angle α =45 ° of the ambient light on the screen, and simulating that the acquisition screen displays different pure color pictures (e.g., red, green, blue, white) at different gray scales (e.g., 32, 64, 96, 128, 160, 192, 224, 255) in the direction of the observation visual angle β =45 ° of human eyes by an external image acquisition camera. That is, under the parameter conditions of the ambient light, the viewing angle and the folding times, the display screens of red, green, blue and white with the gray scales of 32, 64, 96, 128, 160, 192, 224 and 255 are displayed in sequence.
When a picture is displayed each time, the whole flexible display screen firstly displays the picture by using original display data, the camera at the position of the visual angle observed by human eyes shoots the display picture, and picture effect data displayed by the original display data are obtained according to the shot display picture. And then, according to the data, identifying the crease mura information (range and degree) caused by the screen crease under the current condition, and calculating to obtain the compensation coefficient of each sub-pixel under the condition. Loading a compensation coefficient on the display original data, sending the display original data to a screen for display, taking a picture by using an external image acquisition camera to obtain display effect data of the compensated screen, and judging whether crease mura is eliminated or not according to the effect data of a display picture after screen compensation; if the compensation coefficient is eliminated, the compensation coefficient is stored; and if not, photographing again to calculate the compensation coefficient until the crease mura under the parameter condition is eliminated. And repeating the process to determine the compensation coefficient of each sub-pixel in the bending area corresponding to each parameter combination.
In the using process of mass-produced folding products, acquiring original display data of a flexible display screen, and determining the luminous color and the display gray scale of each sub-pixel; and acquiring the current ambient light brightness L, the ambient light incidence angle alpha, the human eye visual angle beta and the folding times N of the flexible display screen. And acquiring a target compensation coefficient matched with each sub-pixel in the bending area from a compensation coefficient database according to the luminous color, the display gray scale, the ambient light brightness L, the ambient light incidence angle alpha, the human eye visual angle beta and the folding times N of the flexible display screen. The obtaining manner may adopt the obtaining manner of the above embodiment, and is not described herein again.
For the display gray scale, all parameter combinations with the same conditions of the light-emitting color, the ambient light brightness L, the ambient light incident angle alpha, the human eye visual angle beta and the folding times N of the flexible display screen in the compensation coefficient database can be determined, and only gray scale reference values in the parameter combinations are different. According to the compensation coefficients corresponding to the determined parameter combinations, a compensation coefficient corresponding to any gray scale can be obtained in an interpolation processing mode under the conditions of the luminous color, the ambient light brightness L, the ambient light incidence angle alpha, the human eye visual angle beta and the folding times N of the flexible display screen.
An embodiment of the present invention further provides a compensation apparatus for a flexible display screen, configured to perform the compensation method for a flexible display screen according to any of the above embodiments, where fig. 12 is a structural block diagram of the display compensation apparatus for a flexible display screen according to the embodiment of the present invention, and referring to fig. 12, the compensation apparatus for a flexible display screen includes:
the parameter acquisition module 10 is used for acquiring display related parameters of the flexible display screen; the display correlation parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness;
a compensation coefficient obtaining module 20, configured to obtain a compensation coefficient according to the display related parameter target;
and the light-emitting compensation module 30 is used for compensating the sub-pixels in the bending part of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
Fig. 13 is a block diagram of a display device according to an embodiment of the present invention, and referring to fig. 13 and fig. 7, the display device includes a flexible display screen 600, an image collecting module 300, an ambient light collecting module 200, a folding counting module 400, and the display compensation apparatus 100 for a flexible display screen according to any embodiment of the present invention; wherein the image acquisition module 300 is configured to determine a viewing angle on the flexible display screen 600; the ambient light collection module 200 is configured to determine the brightness of the ambient light and the incident angle of the ambient light on the flexible display screen 600; the folding counting module 400 is used for recording the number of times that the flexible display screen 600 is folded and unfolded in actual use, so as to determine the number of times that the flexible display screen 600 is folded. The display compensation device 100 of the flexible display screen can obtain the compensation coefficient from the compensation coefficient database 500 according to the obtained display related parameter, and then compensate the sub-pixels in the bending part of the flexible display screen 600 according to the compensation coefficient, so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen 600.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display compensation method of a flexible display screen is characterized by comprising the following steps:
acquiring display associated parameters of a flexible display screen; the display association parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness;
acquiring a target compensation coefficient according to the display correlation parameter;
and compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
2. The display compensation method of the flexible display screen according to claim 1, wherein an ambient light collection module is disposed outside an edge of the flexible display screen; the environment light acquisition module comprises an upper photosensitive film layer and a lower photosensitive film layer, and the environment light irradiates the whole light receiving surface of the upper photosensitive film layer; along the projection direction of the ambient light, the upper photosensitive film layer forms a projection in the light receiving surface of the lower photosensitive film layer, and the ambient light irradiates part of the light receiving surface of the lower photosensitive film layer;
before obtaining the display related parameters of the flexible display screen, the method further comprises the following steps:
respectively detecting current values generated by the upper photosensitive film layer and the lower photosensitive film layer under the irradiation of ambient light;
and determining the incident angle of the ambient light according to the current values of the upper photosensitive film layer and the lower photosensitive film layer and the distance between the upper photosensitive film layer and the lower photosensitive film layer in the direction perpendicular to the flexible screen.
3. The display compensation method of the flexible display screen according to claim 1, wherein before the display related parameters of the flexible display screen are obtained, the method comprises:
acquiring a facial image of a target object through an image acquisition module;
analyzing the face image, and determining the position of the eye of the target object in the face image and the interpupillary distance;
determining a range interval to which an included angle between a sight line and a perpendicular line of the flexible display screen belongs according to the position of the eye of the target object in the face image;
and determining an included angle between the sight line and the flexible display screen from the range interval according to the interpupillary distance of the target object in the face image.
4. The display compensation method of the flexible display screen according to claim 1, wherein before the obtaining of the display related parameters of the flexible display screen, the method further comprises:
recording the times of folding and unfolding the flexible display screen or the times of folding and unfolding the flexible display screen in actual use through a folding counting module;
and determining the folding times of the flexible display screen according to the unfolding times of the flexible display screen after being folded or the folding times of the flexible display screen after being unfolded.
5. The display compensation method of the flexible display screen according to claim 1, wherein the obtaining a target compensation coefficient according to the display related parameter comprises:
acquiring a target compensation coefficient matched with each sub-pixel in the bending area from a compensation coefficient database according to display related parameters of the flexible display screen; the compensation coefficient database comprises a plurality of parameter combinations, and for each sub-pixel in the bending area, each parameter combination corresponds to one compensation coefficient; the parameters in each parameter combination comprise a sight line included angle reference value, a folding frequency reference value, an ambient light incident angle reference value and an ambient light brightness reference value; the compensation coefficient database is provided with sight line included angle reference values of a plurality of different gears, folding times reference values of a plurality of different gears, ambient light incident angle reference values of a plurality of different gears and ambient light brightness reference values of a plurality of different gears; the parameter combinations in the compensation coefficient database comprise all parameter combination modes;
preferably, the display related parameters further include a light-emitting color and/or a gray scale of a sub-pixel in the bending region; the parameters in each parameter combination further include emission color information and/or grayscale reference values of the sub-pixels.
6. The display compensation method of a flexible display screen according to claim 5,
according to the display related parameters of the flexible display screen, obtaining the target compensation coefficient matched with each sub-pixel in the bending area from the compensation coefficient database, wherein the method comprises the following steps:
determining an upper limit value of a gear where a visual angle of a user on the flexible display screen is located in the reference values of the included angles of the sight lines of the different gears;
determining an upper limit value of a gear where the folding times of the flexible display screen are located in the folding time reference values of a plurality of different gears;
determining an upper limit value of a gear where the ambient light incidence angle is located in the ambient light incidence angle reference values of a plurality of different gears;
determining an upper limit value of a gear where the ambient light brightness is located in the ambient light brightness reference values of the different gears;
and determining a target compensation coefficient of each sub-pixel in the bending area according to an upper limit value of a gear where a visual angle of a user on the flexible display screen is located, an upper limit value of a gear where the folding times of the flexible display screen are located, an upper limit value of a gear where an ambient light incident angle is located and an upper limit value of a gear where ambient light brightness is located.
7. The display compensation method of a flexible display screen according to claim 5,
according to the compensation coefficient influence parameters of the flexible screen, obtaining a target compensation coefficient matched with each sub-pixel in the bending area from a compensation coefficient database, wherein the target compensation coefficient comprises the following steps:
determining a sight line included angle reference value which is closest to the visual angle of a user on the flexible display screen from the sight line included angle reference values of the different gears;
determining a folding number reference value which is closest to the folding number of the flexible display screen in the folding number reference values of the different gears;
determining an ambient light incident angle reference value which is closest to an incident angle of ambient light on the flexible display screen in the ambient light incident angle reference values of the different gears;
determining the environmental light brightness reference value which is closest to the environmental light brightness in the environmental light brightness reference values of the different gears;
and determining a target compensation coefficient of each sub-pixel in the bending area according to the closest reference value of the visual line included angle, the closest reference value of the folding times, the closest reference value of the incident angle of the ambient light and the closest reference value of the ambient light brightness.
8. The display compensation method of the flexible display screen of claim 1, wherein compensating the sub-pixels in the bending area of the flexible display screen according to the target compensation coefficient comprises:
determining target display data of each sub-pixel according to the original display data of each sub-pixel in the bending area and the target compensation coefficient corresponding to each sub-pixel;
and controlling each sub-pixel in the bending area to display according to the corresponding target display data.
9. A display compensation apparatus for a flexible display screen, comprising:
the parameter acquisition module is used for acquiring display related parameters of the flexible display screen; the display related parameters comprise an included angle between a sight line and the flexible display screen, the folding times of the flexible display screen, the incident angle of ambient light on the flexible display screen and the ambient light brightness;
the compensation coefficient acquisition module is used for acquiring a target compensation coefficient according to the display correlation parameter;
and the light-emitting compensation module is used for compensating the sub-pixels in the bending part of the flexible display screen according to the target compensation coefficient so as to reduce the display difference between the bending area and the non-bending area of the flexible display screen.
10. A display device, comprising a flexible display screen, an image acquisition module, an ambient light acquisition module, a fold count module, and the display compensation device of the flexible display screen of claim 9;
the image acquisition module is used for determining a visual angle on the flexible display screen; the environment light acquisition module is used for determining the brightness of environment light and the incident angle of the environment light on the flexible display screen; the folding counting module is used for recording the times of folding and unfolding of the flexible display screen in actual use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305370.7A CN115662324A (en) | 2022-10-24 | 2022-10-24 | Display compensation method and device of flexible display screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305370.7A CN115662324A (en) | 2022-10-24 | 2022-10-24 | Display compensation method and device of flexible display screen and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115662324A true CN115662324A (en) | 2023-01-31 |
Family
ID=84992225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211305370.7A Pending CN115662324A (en) | 2022-10-24 | 2022-10-24 | Display compensation method and device of flexible display screen and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115662324A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117372422A (en) * | 2023-12-04 | 2024-01-09 | 青岛宜霖赛瑞智能科技有限公司 | Material bending degree detection method for part production |
-
2022
- 2022-10-24 CN CN202211305370.7A patent/CN115662324A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117372422A (en) * | 2023-12-04 | 2024-01-09 | 青岛宜霖赛瑞智能科技有限公司 | Material bending degree detection method for part production |
| CN117372422B (en) * | 2023-12-04 | 2024-02-13 | 青岛宜霖赛瑞智能科技有限公司 | Material bending degree detection method for part production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109752394B (en) | High-precision detection method and system for defects of display screen | |
| JP6345176B2 (en) | Skin sensory evaluation apparatus and skin evaluation method | |
| JP5772991B2 (en) | Electronics | |
| KR100422295B1 (en) | Image quality analysis method and system for display device | |
| US8189181B2 (en) | Method and system of evaluating a stereo image displaying panel | |
| CN101836180B (en) | Detecting ambient light levels in a vision system | |
| US20210004995A1 (en) | Methods and apparatus for enhancing color vision and quantifying color interpretation | |
| KR100820017B1 (en) | Display evaluation method and apparatus | |
| CN106596073A (en) | Method and system for detecting image quality of optical system, and testing target plate | |
| US20060279633A1 (en) | Method of evaluating motion picture display performance, inspection screen and system for evaluating motion picture display performance | |
| KR102123488B1 (en) | Display panel inspection apparatus and Display panel inspection method | |
| JP4080514B2 (en) | Inspection device, inspection method, inspection program, and computer-readable recording medium | |
| CN105427776B (en) | Liquid crystal display panel image residue detection method and device | |
| CN112135120B (en) | Virtual image information measuring method and system based on head-up display system | |
| KR20070028231A (en) | Scintillation measuring method of display device and scintillation measuring device | |
| CN115662324A (en) | Display compensation method and device of flexible display screen and display device | |
| CN102667689B (en) | Interactive display | |
| CN114445330A (en) | Method and system for detecting appearance defects of components | |
| CN105915791A (en) | Electronic device control method and device, and electronic device | |
| JP4610656B2 (en) | Inspection device, inspection method, program, and recording medium | |
| CN108235831B (en) | The control method and control system and electronic equipment of lamps and lanterns | |
| CN206740363U (en) | A kind of detection optical system is as the system of matter | |
| CN106226033A (en) | The method and device of detection transparent substrates transmitance | |
| CN110880171A (en) | Detection method of display device and electronic equipment | |
| CN101178422B (en) | Character type illuminating device detecting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |