CN109300435B - Flexible screen display method and display device - Google Patents
Flexible screen display method and display device Download PDFInfo
- Publication number
- CN109300435B CN109300435B CN201811317911.1A CN201811317911A CN109300435B CN 109300435 B CN109300435 B CN 109300435B CN 201811317911 A CN201811317911 A CN 201811317911A CN 109300435 B CN109300435 B CN 109300435B
- Authority
- CN
- China
- Prior art keywords
- bending
- flexible screen
- color
- compensation value
- color compensation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
Abstract
The invention provides a display method and a display device of a flexible screen, wherein the display method comprises the following steps: obtaining bending information of at least one bending part of the flexible screen; determining a color compensation value of at least one bending part according to the bending information of at least one bending part, wherein the color compensation value is used for compensating color display data of at least one bending part, so that the color of at least one bending part sensed by a user when the user looks at the flexible screen is consistent with the color of an unbent part on the flexible screen; compensating the color display data of at least one bending part of the flexible screen according to the color compensation value to obtain compensated color display data; and displaying at least one bent part of the flexible screen according to the compensated color display data. According to the display method of the flexible screen, the color display data of the at least one bent part of the flexible screen is adjusted, so that a user can perceive that the color of the at least one bent part is consistent with the color of the non-bent part of the flexible screen when looking at the flexible screen, and the technical problem of color cast display of the bent part of the flexible screen is solved.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a flexible screen display method and display equipment.
Background
With the development of economy and technology, the application of display screens is increasingly widespread. In the display screen, the flexible screen is light and thin compared with the traditional screen due to the characteristics of flexibility and good flexibility, the power consumption is low, the durability degree of the flexible screen is greatly higher than that of the traditional screen, the probability of accidental damage of the equipment can be reduced, and meanwhile, the application of the wearable equipment is deeply influenced, so that the future flexible screen can be widely applied along with continuous permeation of the personal intelligent terminal.
When the flexible AMOLED display screen is used, the bent part can display color cast. If the bending part is bent at a large angle, the display of the bent part is blue or green, and has obvious color difference with the non-bent area. This is because the viewing angle is different, so that the light reflection paths are different, and the wavelength of the light of the combination of three colors of red, green and blue is changed, so that the colors displayed by the combined colors of red, green and blue are different.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display method and device for a flexible screen, so as to solve the technical problem of color cast displayed at a bent portion of the flexible screen.
One aspect of the present invention provides a display method of a flexible screen, including: obtaining bending information of at least one bending part of the flexible screen; determining a color compensation value of at least one bending part according to the bending information of at least one bending part, wherein the color compensation value is used for compensating color display data of at least one bending part, so that the color of at least one bending part sensed by a user when the user looks at the flexible screen is consistent with the color of an unbent part on the flexible screen; compensating the color display data of at least one bending part of the flexible screen according to the color compensation value to obtain compensated color display data; and displaying at least one bent part of the flexible screen according to the compensated color display data.
In one embodiment, obtaining bending information of at least one bending part of the flexible screen comprises: and respectively calculating the bending information of at least one bending part of the flexible screen through the rotating number of turns of at least one driving device used for bending the flexible screen below the flexible screen, wherein the at least one driving device is respectively arranged on a support of the flexible screen.
In one embodiment, the bending information of the at least one bending site of the flexible screen comprises a bending radius or a bending angle of the at least one bending site.
In one embodiment, determining a color compensation value for at least one bend location based on bend information for the at least one bend location comprises: acquiring a first color compensation value corresponding to the maximum bending angle of the flexible screen; when the flexible screen is at the X bending angle, calculating a second color compensation value of at least one bending position edge according to the maximum bending angle, and determining a third color compensation corresponding to each pixel from the bending edge to the horizontal position of at least one bending position according to the second color compensation value by using a gradual change algorithm; and compensating the color display data of each pixel of at least one bending part according to the second color compensation and the third color compensation to obtain compensated color display data, wherein the X bending angle is less than or equal to the maximum bending angle.
In one embodiment, calculating a second color compensation value for at least one bend location edge based on the maximum bend angle comprises: when X is equal to the maximum bending angle, taking the first color compensation value as a second color compensation value; and when the X is smaller than the maximum bending angle, determining a second color compensation value according to the first color compensation value by using an interpolation method.
In one embodiment, the display method of the flexible screen further includes: detecting a first color value when the visual direction is the front visual direction of the flexible screen by using a color testing lens; detecting a second color value when an included angle between the visual direction and the front visual direction is the maximum bending angle of the flexible screen by using a color testing lens, wherein the maximum bending angle corresponds to the minimum bending radius of the flexible screen; adjusting the RGB components of the flexible screen to make the first color value consistent with the second color value, and obtaining the adjustment quantity of the RGB components; burn the adjustment of RGB component into the flexible screen, wherein obtain the first color compensation value that the biggest angle of buckling corresponds, include: the adjustment amount of the RGB components is acquired from the flexible screen as a first color compensation value.
In one embodiment, a gradient algorithm is used to determine a third color compensation value corresponding to each pixel from the bending edge to the horizontal at least one bending part according to the second color compensation value, and the specific calculation method is as follows: the data decrement parameter of the third color compensation corresponding to each pixel from the most edge of the bending part to the level of at least one bending part is
The method for calculating the third color compensation value corresponding to each pixel from the bending edge to the horizontal position of at least one bending part comprises the following steps:
wherein S is at least one bending partW is a horizontal distance from a most edge point of the at least one bending portion to a starting point of bending of the horizontal portion, Wx is a horizontal distance from a bending edge of the bending portion to a horizontal pixel to a starting point of bending of the horizontal portion, and pixel is a width of each pixel of the flexible screen.
In one embodiment, when at least one bending part of the flexible screen is a bending angle, the bending angle corresponding to each pixel bent from the bending edge to the horizontal direction is a fixed value; when at least one bending part of the flexible screen is a round angle, the bending angle corresponding to each pixel from the bending edge to the horizontal bending is an indeterminate value.
In one embodiment, the at least one bending point of the flexible screen is an inward bend or an outward bend.
In another aspect of the present invention, there is provided a display device including: the acquisition module is used for acquiring bending information of at least one bending part of the flexible screen; the determining module is used for determining a color compensation value of at least one bending part according to the bending information of at least one bending part, wherein the color compensation value is used for compensating color display data of at least one bending part, so that a user can perceive that the color of at least one bending part is consistent with the color of an unbent part on the flexible screen when looking at the flexible screen; the computing module is used for compensating the color display data of at least one bending part of the flexible screen according to the color compensation value to obtain compensated color display data; and the display module is used for displaying at least one bent part of the flexible screen according to the compensated color display data.
According to the flexible screen display method and device provided by the embodiment of the invention, the color display data of at least one bent part of the flexible screen is adjusted, so that a user can perceive that the color of the at least one bent part is consistent with the color of the non-bent part on the flexible screen when looking at the flexible screen, and the technical problem of color cast display of the bent part of the flexible screen is solved.
Drawings
Fig. 1 is a schematic flow chart of a display method of a flexible screen according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating calculation of bending information of a flexible screen according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart illustrating a display method of a flexible screen according to an embodiment of the present invention.
Fig. 4 shows a schematic view of a flexible screen in a bent state.
Fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a display device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of a display method of a flexible screen according to an embodiment of the present invention, including:
and 110, acquiring bending information of at least one bending part of the flexible screen in real time.
In an embodiment of the invention, the flexible screen may be a flexible AMOLED (Active-matrix organic light-emitting diode) Active matrix organic light-emitting diode (oled) or an Active-matrix oled display. It will be appreciated that the flexible screen may also be a bendable OLED display screen. Due to the light, thin, soft and bendable properties of the flexible screen, the bending part of the flexible screen can be one or more.
Due to different light reflection paths, when a user uses the flexible screen product, the wavelength of light combined by three colors of RGB (red, green and blue) is changed, and the colors displayed by the combined colors of RGB are different, so that the color of a bent part is perceived to be color cast when the user uses the flexible screen product and looks at the flexible screen.
The flexible screen cannot detect the bending radius by itself, and the driving IC provided for the flexible screen needs to provide bending information of at least one bending portion. When different bending parts and different bending angles are adopted, the user perceives different colors of the bending parts when looking at the flexible screen. The method comprises the steps of obtaining bending information of at least one bending part of the flexible screen in real time, and adjusting the obtained bending information when the bending angle of the flexible screen is changed, so that color display data of the at least one part can be adjusted in real time.
And 120, determining a color compensation value of the at least one bending part according to the bending information of the at least one bending part, wherein the color compensation value is used for compensating the color display data of the at least one bending part.
In an embodiment of the invention, when the color display values of all the pixels of the flexible screen are the same, the color cast phenomenon occurs at the bent part, and the color cast degrees can be the same or different. And the driving IC of the flexible screen adjusts the color display data of the bending part according to the acquired bending information of at least one bending part, the adjustment basis is the color compensation value of each pixel point of the bending part, and the color compensation values of the pixel points can be the same or different.
And 130, compensating the color display data of at least one bending part of the flexible screen according to the color compensation value to obtain the compensated color display data.
And 140, displaying at least one bent part of the flexible screen according to the compensated color display data.
In order to enable the color of at least one bent part sensed by a user when the user looks at the flexible screen to be consistent with the color of the part which is not bent on the flexible screen, the color is displayed on at least one bent part of the flexible screen according to the compensated color display data. That is, the obtained compensated color display data is respectively sent to at least one bending part of the mobile phone for display, and the compensated color display data is different from the color display data of the horizontal part.
According to the invention, by adjusting the color display data of at least one bent part of the flexible screen, a user can perceive that the color of the at least one bent part is consistent with the color of the part which is not bent on the flexible screen when the user looks at the flexible screen, so that the color cast phenomenon displayed on the bent part of the flexible screen is improved, and the user experience is improved.
In another embodiment of the present invention, obtaining bending information of at least one bending portion of a flexible screen includes: and respectively calculating the bending information of at least one bending part of the flexible screen through the rotating number of turns of at least one driving device which is used for bending the flexible screen below the flexible screen, wherein the at least one driving device is respectively arranged on a support of the flexible screen.
Specifically, the bending information is used to describe the bending state and bending degree of the flexible screen, which is an important parameter of the flexible screen in terms of the bending resistance of the flexible screen. When the driving device receives a user instruction to bend, the flexible screen can be bent to an angle which is required to be adjusted by a user. The driving device may be a hydraulic device, a hinge device, a belt, a motor, etc. For example, the operation and analysis are performed according to a user command, the motor operation is set by an internal circuit, the gear shaft rotation speed of the motor is controlled, and the movement amount of the flexible panel is controlled.
And calculating the bending information of the flexible screen according to the action change of the driving device, obtaining a calculation basis of the color display data of the bending part of the flexible screen, and further determining the color display data of the bending part of the flexible screen.
Specifically, the driving motor of the driving device may be one or two driving motors, and the driving motors are arranged in the horizontal direction and the vertical direction perpendicular to each other. The flexible screen is fixedly arranged on the flexible screen support, the driving motors are also arranged on the support, and the horizontal direction and the vertical direction of the corresponding flexible screen are respectively calculated to be W and L by recording the rotation turns of the two driving motors and utilizing the gear ratio as shown in figure 2.
In another embodiment of the present invention, the bending information of the at least one bending portion of the flexible screen includes a bending radius or a bending angle of the at least one bending portion.
The bending part of the flexible screen can be one or more. The bending performance of the flexible screen can be described by the bending radius of the bending part and also can be described by the bending angle. When the flexible screen leaves a factory, the maximum bending angle of the flexible screen is determined, and the bending radius corresponding to the maximum bending angle is the minimum. The bending angle and the bending radius are mutually corresponding and can be mutually converted.
From the calculation model of the bending portion, the bending radius R can be calculated as shown in fig. 2.
According to the triangular relation, the calculation formula of the bending radius R is as follows:
R＝(W2+L2)/2L。
according to the triangular angle relationship, the calculation formula of the bending angle theta is as follows:
θ＝2×arctan(L/W)。
because the bending radius and the bending angle of the flexible screen have a corresponding relation, and the bending radius or the bending angle is used for describing the bending degree of the bending part of the flexible screen, the processing method can be more flexible and accurate.
In another embodiment of the present invention, determining a color compensation value of at least one bending portion according to bending information of the at least one bending portion includes: acquiring a first color compensation value corresponding to the maximum bending angle of the flexible screen; when the flexible screen is at the X bending angle, calculating a second color compensation value of at least one bending position edge according to the maximum bending angle, and determining a third color compensation corresponding to each pixel from the bending edge to the horizontal position of at least one bending position according to the second color compensation value by using a gradual change algorithm; and compensating the color display data of each pixel of at least one bending part according to the second color compensation and the third color compensation to obtain compensated color display data, wherein the X bending angle is less than or equal to the maximum bending angle.
And obtaining a first color compensation value corresponding to the maximum bending angle of the flexible screen, wherein when the bending angle of the flexible screen is the maximum, the color compensation value corresponding to the bending part of the corresponding flexible screen is the maximum, and the maximum is the first color compensation value. The first color compensation value may be derived by measurement. The color compensation values for each pixel from the inflection edge to the horizontal for the maximum inflection angle are not the same. When the bending angle of the flexible screen is changed, namely the bending angle is changed from the maximum bending angle to the X bending angle, the color compensation value of the most edge of the bending part is also changed, and the X bending angle is calculated to be the second color compensation value of the most edge of the bending part according to the maximum bending angle. And determining a third color compensation corresponding to each pixel from the bending edge to the horizontal position of at least one bending part by utilizing a gradual change algorithm according to the second color compensation value. And compensating the color display data of each pixel of at least one bending part according to the second color compensation and the third color compensation to obtain the compensated color display data.
In another embodiment of the present invention, calculating a second color compensation value of at least one bending position edge according to the maximum bending angle comprises: when X is equal to the maximum bending angle, taking the first color compensation value as a second color compensation value; and when the X is smaller than the maximum bending angle, determining a second color compensation value according to the first color compensation value by using an interpolation method.
When X is equal to the maximum bending angle, the first color compensation value is equal to the second color compensation value, and when the bending angle is between 0 degree and the maximum bending angle, the second color compensation value needs to be calculated according to the first color compensation value. The method of calculation may be calculated using interpolation.
The specific algorithm of the interpolation method is as follows: and when the bending radius of the flexible screen is changed into Rx and the value of Rx is between the minimum bending radius R1 and the maximum bending radius R2, calculating the corresponding bending angle X when the bending radius is Rx. When the bending degree of the flexible screen is maximum, namely the corresponding bending angle is maximum, wherein the maximum bending angle is Xmax; when the flexible screen is not bent, the bending angle is 0. Then, when the bending angle is X, the second color compensation value of the edge of the bending part of the flexible screen is equal to the first color compensation value multiplied by the ratio of the bending angle to the maximum bending angle, that is:
in another embodiment of the present invention, the display method of the flexible screen further includes: detecting a first color value when the visual direction is the front visual direction of the flexible screen by using a color testing lens; detecting a second color value when an included angle between the visual direction and the front visual direction is the maximum bending angle of the flexible screen by using a color testing lens, wherein the maximum bending angle corresponds to the minimum bending radius of the flexible screen; adjusting the RGB components of the flexible screen to make the first color value consistent with the second color value, and obtaining the adjustment quantity of the RGB components; burn the adjustment of RGB component into the flexible screen, wherein obtain the first color compensation value that the biggest angle of buckling corresponds, include: the adjustment amount of the RGB components is acquired from the flexible screen as a first color compensation value.
The first color value when the direction of visualing is the orthographic direction of flexible screen, the second color value when the contained angle of direction of visualing and orthographic direction is the biggest bending angle of flexible screen can be reachd by the test. For example, the flexible screen is kept in a plane, and the first color value and the second color value are respectively captured. And obtaining RGB components corresponding to the first color value and the second color value, wherein in order to make the second color value consistent with the first color value, the RGB components of the second color value need to be adjusted, that is, an adjustment amount of the RGB components is obtained, and the adjustment amount of the RGB components is a first color compensation value corresponding to the maximum folding angle. And burning the first color compensation value into the flexible screen. And burning the first color compensation value to the flexible screen for the second burning, wherein the purpose is to obtain different color compensation values of at least one bending part of the flexible screen as the basis for calculating color display data. When the flexible screen is manufactured, a burning action is generally performed, that is, the red (R), blue (G) and green (B) colors of different flexible screens are calibrated. It will be appreciated that the first color compensation value may also be stored and recorded on the flexible screen in other ways.
In another embodiment of the present invention, a gradient algorithm is used to determine a third color compensation value corresponding to each pixel from the bending edge to the horizontal at least one bending portion according to the second color compensation value, and the specific calculation method is as follows: the second color compensation value of at least one bending part is S, and the edge bending from the at least one bending part is calculatedThe data decrement parameter of the third color compensation corresponding to each pixel to the horizontal is
The method for calculating the third color compensation value corresponding to each pixel from the bending edge to the horizontal position of at least one bending part comprises the following steps:
wherein, W is the horizontal distance from the most marginal point of at least one bending part to the starting point of the bending of the horizontal part, Wx is the horizontal distance from the bending edge to a certain horizontal pixel to the starting point of the bending of the horizontal part, and pixel is the width of each pixel of the flexible screen.
Specifically, referring to fig. 5, when the bending angle of the flexible screen is the largest, the third color compensation value of each pixel point can be obtained by using a gradual change algorithm within a range from the most edge of the bending portion of the flexible screen to the horizontal, so that the third color compensation value of each pixel point at the bending portion is gradual and excessive.
For example, the second color value of the most peripheral edge of the flexible screen bending part is 0xFFFF86, the first color value of the horizontal non-bending part is 0xFFFFFF, and the second color compensation value is the difference between the first color value 0xFFFFFF and the second color value 0xFFFF86, namely (0 xFF-0 x86), and the second color compensation value is used for calculating the color difference between the first color value 0xFFFFFF and the second color value 0xFFFF86
W is the horizontal distance from the most marginal point of at least one bending part to the starting point of the bending of the horizontal part, Wx is the horizontal distance from the bending edge to a certain pixel in the horizontal part to the starting point of the bending of the horizontal part, and pixel is the width of each pixel of the flexible screen. By using the gradual change algorithm, the third color compensation value of any pixel point at the bending part is equal to
It can be understood that the second color compensation value is set when the bending angle of the flexible screen is equal to the maximum bending angleIs equal to the first color compensation value.
In another embodiment of the invention, when at least one bending part of the flexible screen is a bending angle, the bending angle corresponding to each pixel bent from the bending edge to the horizontal direction is a fixed value; when at least one bending part of the flexible screen is a round angle, the bending angle corresponding to each pixel from the bending edge to the horizontal bending is an indeterminate value. This is because the definition of the bending angle refers to the angle between the curved bending surface and the visual direction. It can be understood that when the bending part is a round corner, the bending angles corresponding to the pixels in the bending part are different; when the bending part is a bending angle, the bending angles corresponding to the pixels in the bending part are the same.
In another embodiment of the present invention, as shown in fig. 4, at least one bending portion of the flexible screen may be bent inward or outward, and the two processes are completely the same. It should be noted that, for convenience of description and calculation, the flexible screen is bent inward or outward, and the corresponding bending angles are all indicated by acute angles.
An embodiment of the present invention further provides a display apparatus 600, as shown in fig. 6, the display apparatus 600 includes: an obtaining module 610, configured to obtain bending information of at least one bending portion of the flexible screen; the determining module 620 is configured to determine a color compensation value of the at least one bending portion according to the bending information of the at least one bending portion, where the color compensation value is used to compensate color display data of the at least one bending portion, so that a user perceives that a color of the at least one bending portion is consistent with a color of an unbent portion on the flexible screen when looking at the flexible screen; the calculating module 630 is configured to compensate the color display data of at least one bending portion of the flexible screen according to the color compensation value, so as to obtain compensated color display data; and the display module 640 is configured to display at least one bent portion of the flexible screen according to the compensated color display data.
The determining module 620 of a display device according to an embodiment of the present invention is further configured to: acquiring a first color compensation value corresponding to the maximum bending angle of the flexible screen; when the flexible screen is at the X bending angle, calculating a second color compensation value of at least one bending position edge according to the maximum bending angle, and determining a third color compensation corresponding to each pixel from the bending edge to the horizontal position of at least one bending position according to the second color compensation value by using a gradual change algorithm; and compensating the color display data of each pixel of at least one bending part according to the second color compensation and the third color compensation to obtain compensated color display data, wherein the X bending angle is less than or equal to the maximum bending angle.
The determining module 620 of a display device according to an embodiment of the present invention is further configured to: calculating a second color compensation value of at least one bending part edge according to the maximum bending angle, comprising: when X is equal to the maximum bending angle, taking the first color compensation value as a second color compensation value; and when the X is smaller than the maximum bending angle, determining a second color compensation value according to the first color compensation value by using an interpolation method.
The display device of an embodiment of the present invention further includes a recording module 615, which is specifically configured to: detecting a first color value when the visual direction is the front visual direction of the flexible screen by using a color testing lens; detecting a second color value when an included angle between the visual direction and the front visual direction is the maximum bending angle of the flexible screen by using a color testing lens, wherein the maximum bending angle corresponds to the minimum bending radius of the flexible screen; adjusting the RGB components of the flexible screen to make the first color value consistent with the second color value, and obtaining the adjustment quantity of the RGB components; and burning the adjusted amount of the RGB components into the flexible screen.
The determining module 620 of a display device according to an embodiment of the present invention is further configured to: obtaining a first color compensation value corresponding to the maximum bending angle, including: the adjustment amount of the RGB components is acquired from the flexible screen as a first color compensation value.
FIG. 3 is a schematic flow diagram of a testing method according to another embodiment of the invention. The method 300 of FIG. 3 includes the following:
at least one bending portion of the flexible screen is determined 310.
The bending part of the flexible screen is the part needing to be subjected to display color adjustment, so that the flexible screen is in a normal color when viewed from the front vertical direction of the screen after being bent.
The determination of the bending location is obtained by means of a drive means arranged under the flexible screen, i.e. two drive motors in horizontal and vertical direction. Each bending part corresponds to two driving motors, and the motors drive the bending of the flexible screen and control the displacement of the flexible screen in the horizontal and vertical directions. The system controls the movement of the motor to determine the location of the flexible screen where it is bent.
And 320, determining bending information of at least one bending part of the flexible screen.
The color display adjustment of the bending part needs to be carried out according to the bending information of the bending part. The bending information can be represented by a bending radius or a bending angle. Because the bending information of each part is different, for example, according to the theta value of each position, different RGB data compensation corresponding to each theta value can be calculated, and the color cast phenomena such as bluing or bluing displayed in the bending area can be compensated.
And the calculation of the bending angle is to calculate the displacement W and L of the motor driving the flexible screen along the horizontal direction and the vertical direction according to the rotating speed and the rotating time of the two driving motors along the horizontal direction and the vertical direction under the flexible screen.
From the calculation model shown in the figure, the bending radius R of at least one part of the flexible screen can be calculated.
That is, R ═ W2+L2)/2L。
Or obtaining the bending angle theta of at least one part of the flexible screen,
θ＝2×arctan(L/W)。
330: and acquiring a first color value and a second color value corresponding to different bending angles of the flexible screen.
As before, the first color value when the direction of visualing is the orthographic direction of flexible screen, the second color value when the contained angle of direction of visualing and orthographic direction is the biggest bending angle of flexible screen can be obtained by the test.
340: and burning the adjustment quantity of the RGB components obtained when the first color value is consistent with the second color value to the flexible screen.
The color adjustment parameter may be a gray level offset (gray level offset) of red (R), blue (G) and green (B), which is not limited in the present invention.
And obtaining RGB components corresponding to the first color value and the second color value, wherein in order to make the second color value consistent with the first color value, the RGB components of the second color value need to be adjusted, that is, an adjustment amount of the RGB components is obtained, and the adjustment amount of the RGB components is a first color compensation value corresponding to the maximum folding angle. And burning the first color compensation value into the flexible screen.
350: a color compensation value for each pixel of at least one bend region of the flexible screen is obtained.
Specifically, when the bending angle of the flexible screen is the largest, the color compensation value corresponding to the bending part of the corresponding flexible screen is the largest, and the first color compensation value corresponding to the largest bending angle of the flexible screen is the largest. The first color compensation value may be experimentally measured.
The color compensation values corresponding to each pixel from the bending edge to the horizontal position corresponding to the maximum bending angle of the flexible screen are different, and similarly, when the bending angle of the flexible screen is changed, namely the maximum bending angle is changed to the X bending angle, the color compensation value of the edge at the bending position is also changed, and after the corresponding bending angle is changed, the color compensation value corresponding to each pixel from the bending edge to the horizontal position also needs to be recalculated.
And the second color compensation value of the edge of the bending part of the X bending angle is calculated by utilizing an interpolation method according to the proportional relation between the bending angle and the maximum bending angle and the first color compensation value. For the interpolation calculation, reference is made to the above description and the description is omitted here.
The third color compensation value is a color compensation value corresponding to each pixel from the bending edge to the horizontal at least one bending part under the current bending angle, and can be obtained by using a gradual change algorithm according to the second color compensation value.
It will be appreciated that the first color compensation value is equal to the second color compensation value when X is equal to the maximum bend angle. When the bending angle is between 0 degrees and the maximum bending angle, a second color compensation value needs to be calculated according to the first color compensation value.
As described above, the color compensation value corresponding to each pixel of at least one bending part of the flexible screen can be obtained.
And 360, compensating color display data of each pixel of at least one bending part of the flexible screen.
And changing display data, and compensating the color display data of the bending area of the flexible screen, so that the color cast phenomena such as blue and green are avoided when the flexible screen is seen from the front. The compensation of the color display data of the flexible screen bending area is to change the data sent by the mobile phone.
And 370, displaying at least one bending part of the flexible screen according to the compensated color display data.
For example, originally, the color display data 0 xfffffff is transmitted to the horizontal portion, and the RGB component compensation value when the screen bending angle is maximum is read from the inside of the flexible panel for the bending portion, and the RGB component compensation value is added when the color display data is transmitted to the flexible panel, and for example, the color display data 0xfffff 86 after compensation is transmitted to the edge position of the bending portion at the maximum bending angle, so that the front viewing angle of the flexible panel does not have the color cast phenomenon.
As described above, the bending radius of the at least one bending portion of the flexible screen is obtained, the color display data of each pixel of the at least one bending portion of the flexible screen is compensated, and the color display data is displayed on the at least one bending portion of the flexible screen according to the compensated color display data, so that the color cast phenomenon of the bending portion of the flexible screen is improved.
It should be understood that each module or unit described in the display device provided in the above embodiments corresponds to one method step in the flexible screen based display method described above. Thus, the operations and features described in the foregoing method steps are also applicable to the apparatus and the corresponding modules or units included therein, and repeated contents are not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (9)
1. A display method of a flexible screen is characterized by comprising the following steps:
obtaining bending information of at least one bending part of the flexible screen;
determining a color compensation value of the at least one bending part according to the bending information of the at least one bending part;
compensating color display data of at least one bending part of the flexible screen according to the color compensation value to obtain compensated color display data;
displaying at least one bent part of the flexible screen according to the compensated color display data;
the color compensation value is used for compensating color display data of the at least one bent part, so that a user can perceive that the color of the at least one bent part is consistent with the color of an unbent part on the flexible screen when looking at the flexible screen;
the determining a color compensation value of the at least one bending part according to the bending information of the at least one bending part includes:
acquiring a first color compensation value corresponding to the maximum bending angle of the flexible screen;
when the flexible screen is at an X bending angle, calculating a second color compensation value of the edge of the at least one bending part according to the maximum bending angle, and determining a third color compensation corresponding to each pixel of the at least one bending part from the bending edge to the horizontal position according to the second color compensation value by using a gradual change algorithm;
and compensating the color display data of each pixel of the at least one bending part according to the second color compensation value and the third color compensation value to obtain compensated color display data, wherein the X bending angle is smaller than or equal to the maximum bending angle.
2. The method for displaying the flexible screen according to claim 1, wherein the obtaining bending information of at least one bending part of the flexible screen comprises:
and respectively calculating the bending information of at least one bending part of the flexible screen through the rotating number of turns of at least one driving device which is arranged below the flexible screen and used for bending the flexible screen, wherein the at least one driving device is respectively arranged on the bracket of the flexible screen.
3. The method for displaying the flexible screen according to claim 1, wherein the bending information of the at least one bending portion of the flexible screen includes a bending radius or a bending angle of the at least one bending portion.
4. The method for displaying a flexible screen according to claim 1, wherein the calculating a second color compensation value of the at least one bending position edge according to the maximum bending angle comprises:
when the X is equal to the maximum bending angle, taking the first color compensation value as the second color compensation value;
and when the X is smaller than the maximum bending angle, determining the second color compensation value according to the first color compensation value by utilizing an interpolation method.
5. The display method of the flexible screen according to claim 1, further comprising:
detecting a first color value when the visual direction is the front viewing direction of the flexible screen by using a color testing lens;
detecting a second color value when an included angle between a visual direction and a front visual direction is a maximum bending angle of the flexible screen by using the color testing lens, wherein the maximum bending angle corresponds to a minimum bending radius of the flexible screen;
adjusting the RGB components of the flexible screen to enable the first color value to be consistent with the second color value, and obtaining the adjustment quantity of the RGB components;
burning the adjusted amount of the RGB components into the flexible screen,
wherein the obtaining of the first color compensation value corresponding to the maximum bending angle includes:
and acquiring the adjustment quantity of the RGB components from the flexible screen as the first color compensation value.
6. The method for displaying the flexible screen according to claim 1, wherein a third color compensation value corresponding to each pixel of the at least one bending portion from the bending edge to the horizontal position is determined according to the second color compensation value by using a gradual change algorithm, and the specific calculation method is as follows:
the data decrement parameter of the third color compensation corresponding to each pixel from the most edge of the bending part to the level of the at least one bending part is
The method for calculating the third color compensation value corresponding to each pixel from the bending edge to the horizontal position of the at least one bending part comprises the following steps:
wherein S is a second color compensation value of the at least one bending part, W is a horizontal distance from a most marginal point of the at least one bending part to a bending start point of the horizontal part, Wx is a horizontal distance from a bending edge to a horizontal pixel to a bending start point of the horizontal part of the flexible screen, and pixel is the width of each pixel of the flexible screen.
7. The method for displaying the flexible screen according to claim 1, wherein when at least one bending part of the flexible screen is a bending angle, the bending angle corresponding to each pixel bent from a bending edge to a horizontal direction is a constant value; when at least one bending part of the flexible screen is a round angle, the bending angle corresponding to each pixel bent from the bending edge to the horizontal direction is an indeterminate value.
8. The method for displaying the flexible screen according to claim 4, wherein at least one bending portion of the flexible screen is bent inward or outward.
9. A display device, comprising:
the acquisition module is used for acquiring bending information of at least one bending part of the flexible screen;
the determining module is used for determining a color compensation value of the at least one bending part according to the bending information of the at least one bending part;
the computing module is used for compensating the color display data of at least one bending part of the flexible screen according to the color compensation value to obtain compensated color display data;
the display module is used for displaying at least one bent part of the flexible screen according to the compensated color display data;
the color compensation value is used for compensating color display data of the at least one bent part, so that a user can perceive that the color of the at least one bent part is consistent with the color of an unbent part on the flexible screen when looking at the flexible screen;
the determination module is to:
acquiring a first color compensation value corresponding to the maximum bending angle of the flexible screen;
when the flexible screen is at an X bending angle, calculating a second color compensation value of the edge of the at least one bending part according to the maximum bending angle, and determining a third color compensation corresponding to each pixel of the at least one bending part from the bending edge to the horizontal position according to the second color compensation value by using a gradual change algorithm;
and compensating the color display data of each pixel of the at least one bending part according to the second color compensation value and the third color compensation value to obtain compensated color display data, wherein the X bending angle is smaller than or equal to the maximum bending angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317911.1A CN109300435B (en) | 2018-11-06 | 2018-11-06 | Flexible screen display method and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317911.1A CN109300435B (en) | 2018-11-06 | 2018-11-06 | Flexible screen display method and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109300435A CN109300435A (en) | 2019-02-01 |
| CN109300435B true CN109300435B (en) | 2021-02-19 |
Family
ID=65146028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811317911.1A Active CN109300435B (en) | 2018-11-06 | 2018-11-06 | Flexible screen display method and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109300435B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020191698A1 (en) | 2019-03-28 | 2020-10-01 | 京东方科技集团股份有限公司 | Display panel, and control method and apparatus therefor |
| CN110223625B (en) * | 2019-07-22 | 2022-12-16 | 京东方科技集团股份有限公司 | Display method and display device of display panel |
| CN110767150B (en) * | 2019-10-18 | 2020-11-20 | 北京凯视达科技有限公司 | Method for solving squint color cast problem of LED screen |
| CN111783664A (en) * | 2020-06-30 | 2020-10-16 | 珠海格力电器股份有限公司 | Folding line compensation method and device for folding screen, electronic equipment and storage medium |
| CN112201191B (en) * | 2020-10-12 | 2023-05-26 | 维沃移动通信有限公司 | Display screen control method and device, electronic equipment and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091833A (en) * | 2015-08-21 | 2015-11-25 | 华勤通讯技术有限公司 | Bending test method and bending test device of flexible screen |
| CN107068055A (en) * | 2017-05-17 | 2017-08-18 | 京东方科技集团股份有限公司 | The gamma electric voltage method of adjustment and device of a kind of curved face display panel |
| CN107393468A (en) * | 2017-08-24 | 2017-11-24 | 京东方科技集团股份有限公司 | The color misregistration correction method and color cast correction device of a kind of display panel |
| CN108230406A (en) * | 2018-01-02 | 2018-06-29 | 联想(北京)有限公司 | Data processing method and electronic equipment |
| CN108305579A (en) * | 2018-01-26 | 2018-07-20 | 昆山国显光电有限公司 | Screen adjustment method and display device |
-
2018
- 2018-11-06 CN CN201811317911.1A patent/CN109300435B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091833A (en) * | 2015-08-21 | 2015-11-25 | 华勤通讯技术有限公司 | Bending test method and bending test device of flexible screen |
| CN107068055A (en) * | 2017-05-17 | 2017-08-18 | 京东方科技集团股份有限公司 | The gamma electric voltage method of adjustment and device of a kind of curved face display panel |
| CN107393468A (en) * | 2017-08-24 | 2017-11-24 | 京东方科技集团股份有限公司 | The color misregistration correction method and color cast correction device of a kind of display panel |
| CN108230406A (en) * | 2018-01-02 | 2018-06-29 | 联想(北京)有限公司 | Data processing method and electronic equipment |
| CN108305579A (en) * | 2018-01-26 | 2018-07-20 | 昆山国显光电有限公司 | Screen adjustment method and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109300435A (en) | 2019-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109300435B (en) | Flexible screen display method and display device | |
| US11270663B2 (en) | Method for detecting compensation parameters of brightness, method for compensating brightness, detection device for detecting compensation parameters of brightness, brightness compensation device, display device, and non-volatile storage medium | |
| CN101499253B (en) | Output picture regulation method and apparatus | |
| CN108305579B (en) | Screen adjusting method and display device | |
| CN109166559B (en) | Gamma value debugging method and device for display panel | |
| US20190103062A1 (en) | Method and apparatus for compensating for brightness of display device | |
| WO2019001355A1 (en) | Display panel gray level regulating method and device | |
| CN102577337B (en) | Mobile information apparatus and display control method | |
| US20060145986A1 (en) | Liquid crystal display, and method and system for automatically adjusting flicker of the same | |
| KR20160084950A (en) | Curved display and a driving method of the same | |
| US20120268436A1 (en) | Display device and method for adjusting gray-level of image frame depending on environment illumination | |
| CN110140163B (en) | Display panel and control method and control device thereof | |
| KR20080044093A (en) | Method for wide viewing angle and apparatus for the same | |
| CN103733605A (en) | Adaptive text font and image adjustments in smart handheld devices for improved usability | |
| CN113053310A (en) | Gamma adjusting method and device for display panel and display equipment | |
| CN108122546B (en) | Display apparatus and image processing method thereof | |
| CN107993616A (en) | A kind of method for displaying image and device | |
| US10819885B2 (en) | Gamma value tuning method and device of display panel | |
| CN108230406B (en) | Data processing method and electronic equipment | |
| CN110189721A (en) | The mura compensation method of display panel and device | |
| CN114582284B (en) | Display driving method, display driver and display device | |
| CN110733430A (en) | Head-up display apparatus, vehicle including the same, and method of controlling head-up display apparatus | |
| US20180108326A1 (en) | Display device | |
| US20190180716A1 (en) | Head mount display device and driving method of the same | |
| CN112102777B (en) | Display method of display panel and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |