CN115623120A - Screen-folding display device and image display definition adjusting method - Google Patents

Screen-folding display device and image display definition adjusting method Download PDF

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Publication number
CN115623120A
CN115623120A CN202110791431.4A CN202110791431A CN115623120A CN 115623120 A CN115623120 A CN 115623120A CN 202110791431 A CN202110791431 A CN 202110791431A CN 115623120 A CN115623120 A CN 115623120A
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pixel
brightness
mark information
display
value
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CN115623120B (en
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沈海杰
王烨东
刁玉洁
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
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  • General Business, Economics & Management (AREA)
  • Mathematical Physics (AREA)
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  • Controls And Circuits For Display Device (AREA)
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Abstract

The embodiment of the application provides a screen-folding display device and an image display definition adjusting method, wherein when an image is displayed through the screen-folding display device, an image to be displayed can be obtained firstly; determining a difference value between the color value of the first pixel and the color value of each adjacent pixel for each first pixel in the image to be displayed; if the brightness of the second pixel is determined to be adjusted according to the obtained difference values, the brightness of the second pixel is determined to be adjusted to be the target brightness; and displaying the image to be displayed by the first display and the second display after the brightness is adjusted. Therefore, the brightness of the pixels in the display below is adjusted in a targeted manner by analyzing the color value of the first pixel in the image to be displayed and based on the difference between the color value of the first pixel and the color value of each adjacent pixel, so that the definition of image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display after brightness adjustment.

Description

Screen-folding display device and image display definition adjusting method
Technical Field
The present application relates to the field of image processing technologies, and in particular, to a screen-stacking display device and an image display definition adjusting method.
Background
With the popularization of display devices, such as televisions, computers and other electronic devices, the quality of images displayed by the display devices is also increasing, and the definition of the displayed images becomes an important index for evaluating the performance of the electronic devices.
With the development of screen stacking technology, screen stacking refers to a screen stacking display scheme adopting an upper panel and a lower panel. The upper panel is a color screen and is mainly used for realizing accurate control of colors, so that the real colors of the image are restored; and the lower panel is a black and white screen and is mainly used for realizing dimming, so that high contrast and dark field details are presented. When the screen-stacking technology is applied to display equipment, the image display definition is still an important index for evaluating the performance of the screen-stacking display equipment.
Therefore, when the display device of the screen stack displays an image, how to improve the definition of the image display is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The embodiment of the application provides a screen-folding display device and an image display definition adjusting method, and the image display definition is improved when images are displayed.
In a first aspect, an embodiment of the present application provides a screen-stacking display device, where the screen-stacking display device includes:
the display device includes a first display and a second display disposed below the first display, the first display and the second display configured to display an image screen and a user interface.
A controller connected to the first display and the second display, the controller configured to:
acquiring an image to be displayed; the image to be displayed comprises a plurality of first pixels.
Determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference between the color value of the first pixel and the color value of each adjacent pixel; and pixels in the image to be displayed correspond to pixels in the second displayer in a one-to-one mode.
And if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness.
And displaying the image to be displayed through the first display and the second display after the brightness is adjusted.
In one possible implementation, the controller is configured to:
a first maximum value of the first pixel color values and a second maximum value of the neighboring pixel color values are determined, respectively.
And respectively determining the difference value between the first maximum value and the second maximum value in the color values of the adjacent pixels.
In one possible implementation, the controller is configured to:
according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, respectively determining the marking information corresponding to each difference value; wherein different marking information is used for marking differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the mark information corresponding to the difference values.
In one possible implementation, the controller is configured to:
for each difference value, if the difference value is greater than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is first mark information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is second mark information; or,
and if the difference is smaller than or equal to a first threshold value, determining that the mark information corresponding to the difference is third mark information.
In one possible implementation, the controller is configured to:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is the first mark information or the second mark information, and the number of the other non-third mark information is greater than a second threshold value, determining to adjust the brightness of the second pixel.
In one possible implementation, the controller is configured to:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value includes third mark information, other non-third mark information is the first mark information, and the number of the other non-third mark information is greater than a second threshold value, the brightness of the second pixel is increased, and the increased brightness is determined as the target brightness of the second pixel.
If the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is second mark information, and the number of the other non-third mark information is greater than a second threshold value, reducing the brightness of the second pixel, and determining the reduced brightness as the target brightness of the second pixel.
In one possible implementation, the controller is further configured to:
determining a complex area in the image to be displayed; determining pixels in the complex area as the plurality of first pixels.
In a second aspect, an embodiment of the present application provides an image display definition adjusting method, which is applied to a screen-stacked display device, where the screen-stacked display device includes a first display and a second display disposed below the first display, and the method includes:
acquiring an image to be displayed; the image to be displayed comprises a plurality of first pixels.
Determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference between the color value of the first pixel and the color value of each adjacent pixel; and pixels in the image to be displayed correspond to pixels in the second displayer in a one-to-one mode.
And if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness.
And displaying the image to be displayed through the first display and the second display after the brightness is adjusted.
In a possible implementation manner, the determining a difference between the color value of the first pixel and the color value of each of the plurality of neighboring pixels includes:
a first maximum value of the first pixel color values and a second maximum value of the neighboring pixel color values are determined, respectively.
And respectively determining the difference value between the first maximum value and the second maximum value in the color values of the adjacent pixels.
In a possible implementation manner, the determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to a difference between the color value of the first pixel and the color values of the adjacent pixels includes:
respectively determining marking information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used for marking differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the mark information corresponding to the difference values.
In a possible implementation manner, the determining, according to a difference between the color value of the first pixel and the color value of each adjacent pixel, marking information corresponding to each difference, respectively, includes:
for each difference value, if the difference value is greater than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is first mark information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is second mark information; or,
and if the difference is smaller than or equal to a first threshold value, determining that the mark information corresponding to the difference is third mark information.
In a possible implementation manner, the determining whether to adjust the brightness of the second pixel according to the flag information corresponding to each difference value includes:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is the first mark information or the second mark information, and the number of the other non-third mark information is greater than a second threshold value, determining to adjust the brightness of the second pixel.
In one possible implementation, the determining the target brightness of the second pixel includes:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value includes third mark information, other non-third mark information is the first mark information, and the number of the other non-third mark information is greater than a second threshold value, the brightness of the second pixel is increased, and the increased brightness is determined as the target brightness of the second pixel.
If the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is second mark information, and the number of the other non-third mark information is greater than a second threshold value, reducing the brightness of the second pixel, and determining the reduced brightness as the target brightness of the second pixel.
In one possible implementation, the method further includes:
determining a complex area in the image to be displayed; determining pixels in the complex area as the plurality of first pixels.
Therefore, the embodiment of the application provides a screen-folding display device and an image display definition adjusting method, and when an image is displayed by the screen-folding display device, an image to be displayed can be obtained first; the image to be displayed comprises a plurality of first pixels; determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; if the brightness of the second pixel is determined to be adjusted according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness; and displaying the image to be displayed through the first display and the second display after the brightness is adjusted. Therefore, the brightness of the pixels in the display below is adjusted in a targeted manner by analyzing the color value of the first pixel in the image to be displayed and based on the difference between the color value of the first pixel and the color value of each adjacent pixel, so that the definition of image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display after brightness adjustment.
Drawings
Fig. 1 is a schematic view of a usage scenario of a display device according to an embodiment of the present application;
fig. 2 is a block diagram of a hardware configuration of a display device according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a relationship between a first pixel and a plurality of adjacent pixels according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a method for adjusting image display definition according to an embodiment of the present disclosure.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. The drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily intended to limit the order or sequence unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
The term "remote control" as used in this application refers to a component of an electronic device (such as the display device disclosed in this application) that is typically wirelessly controllable over a relatively short range of distances. Typically using infrared and/or Radio Frequency (RF) signals and/or bluetooth to connect with the electronic device, and may also include WiFi, wireless USB, bluetooth, motion sensor, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.
The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, and/or result.
Fig. 1 is a schematic view of a usage scenario of a display device according to an embodiment of the present application. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner.
In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a laptop, an AR/VR device, and the like.
In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.
In some embodiments, the smart device 300 and the display device may also be used for communication of data.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.
In some embodiments, software steps executed by one step execution agent may be migrated on demand to another step execution agent in data communication therewith for execution. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.
The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired. For example, in the embodiment of the present application, the display device 200 may be a screen-stacked display device, that is, the display device includes a first display and a second display disposed below the first display, and the first display and the second display jointly display an image to be displayed.
The display apparatus 200 may additionally provide an intelligent network tv function of a computer support function including, but not limited to, a network tv, an intelligent tv, an Internet Protocol Tv (IPTV), and the like, in addition to the broadcast receiving tv function.
Fig. 2 is a block diagram of a hardware configuration of a display device 200 according to an embodiment of the present disclosure.
In some embodiments, at least one of the communicator 220, the external device interface 240, the controller 250, the display 260, the memory, and the user interface 280 is included in the display apparatus 200.
In some embodiments, the display 260 is configured to receive image signals from the first processor, and to display video content and images and components of the menu manipulation interface.
In some embodiments, the display 260 includes a display screen assembly for presenting a picture, and a driving assembly for driving the display of an image.
In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via wired or wireless communication protocols. Alternatively, various image contents received from the network communication protocol and sent from the network server side can be displayed.
In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.
In some embodiments, display 260 is a projection display and may also include a projection device and a projection screen.
In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.
In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, a mouse or other).
In some embodiments, the display apparatus 200 may adaptively adjust a display color temperature of an image. For example, the display apparatus 200 may be adjusted to display a cool tone when the temperature is in a high environment, or the display apparatus 200 may be adjusted to display a warm tone when the temperature is in a low environment.
In some embodiments, controller 250 includes at least one of a Random Access Memory (RAM), a Read-Only Memory (ROM), a video processor, an audio processor, other processors (e.g., a Graphics Processing Unit (GPU), a Central Processing Unit (CPU), a Communication Interface (Communication Interface), and a Communication Bus (Bus).
A memory including various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.
With the continuous development of the screen folding technology, if the screen folding technology is applied to a display device, that is, images are displayed through two displays, the image display definition is still an important index for evaluating the performance of the screen folding display device. Therefore, when the display device of the stacked screen is used to display an image, how to improve the definition of the image display is a problem to be solved urgently by those skilled in the art.
In order to improve the definition of image display when image display is performed through the screen-folding display device, the brightness of pixels in the display below is considered to influence the definition of image display, and because the pixels in the display below correspond to the pixels in the image to be displayed one by one, the color value of the pixels in the image to be displayed can be analyzed, and the brightness of the pixels in the display below is adjusted based on the color value of the pixels in the image to be displayed, so that the definition of image display is adjusted.
Based on the technical concept, an embodiment of the present application provides a screen-folding display device, which includes a first display and a second display disposed below the first display, the first display and the second display being configured to display an image screen and a user interface; a controller connected to the first display and the second display, the controller configured to:
step a, obtaining an image to be displayed; the image to be displayed comprises a plurality of first pixels.
For example, the image to be displayed may be a certain frame image, or an image in a certain section of video, and may be specifically set according to actual needs.
In acquiring the image to be displayed, in one possible implementation, the controller may be configured to: acquiring an image to be displayed from a server; in another possible implementation, the controller may be configured to: the image to be displayed input by the user is received, and of course, the image to be displayed may be obtained in other manners, for example, the controller may be configured to: specifically, the image to be displayed and the like are acquired from the local memory, and may be set according to actual needs, and here, the embodiment of the present application is described by taking the three acquisition manners as examples, but the embodiment of the present application is not limited thereto.
In general, for an image, a region in the image may be divided into a flat region and a complex region according to RGB values of pixels therein. The flat area is an image area formed by a plurality of pixels having relatively close RGB values, and the complex area is an image area formed by a plurality of pixels having relatively large RGB values.
In view of the fact that the pixels in the complex area have a greater influence on the definition of the image display and the pixels in the flat area have a smaller influence on the definition of the image display, in order to improve the definition of the image display to be displayed, the controller may be configured to: determining a complex area in an image to be displayed, and determining pixels in the complex area as a plurality of first pixels; therefore, the color value of the first pixel in the complex area is analyzed, and the brightness of the pixel in the display arranged below is adjusted based on the color value of the first pixel in the complex area, so that the image display definition can be effectively improved.
It should be noted that, in the embodiment of the present application, if the data processing amount is not considered, the color value of each pixel in the image to be displayed may also be analyzed, and the brightness of the pixel in the display below is adjusted based on the color value of each pixel in the image to be displayed, and specifically, the brightness may be set according to actual needs.
B, aiming at each first pixel, determining the difference value between the color value of the first pixel and the color value of each adjacent pixel in a plurality of adjacent pixels; and determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference between the color value of the first pixel and the color value of each adjacent pixel.
And the pixels in the image to be displayed correspond to the pixels in the second display one by one.
It can be understood that, in the embodiment of the present application, since a method for correspondingly adjusting the brightness of a pixel corresponding to each first pixel in a display disposed below according to the color value of each first pixel is similar, in order to avoid redundancy, a description will be given by taking any one of a plurality of first pixels in a complex area as an example.
In general, color values of pixels are represented by three RGB colors, for example, assuming that a color value of a certain pixel is (255,0, 123), a maximum value among the color values of the pixel is 255, and assuming that a color value of a certain pixel is (138, 248, 123), a maximum value among the color values of the pixel is 248; in view that a maximum value of a pixel may characterize the pixel to some extent with respect to contrast, sharpness related information, the controller may be configured, for example, in determining a difference between a color value of a first pixel and a color value of each of a plurality of neighboring pixels:
respectively determining a first maximum value in the color values of the first pixel and a second maximum value in the color values of all adjacent pixels; and respectively calculating the difference between the first maximum value in the color value of the first pixel and the second maximum value in the color value of each adjacent pixel.
For example, as shown in fig. 3, fig. 3 is a schematic diagram of a relationship between a first pixel and a plurality of adjacent pixels provided in the embodiment of the present application, and it is assumed that a black solid circle in fig. 3 represents the first pixel, where the first pixel has 8 adjacent pixels, and the 8 adjacent pixels are respectively an adjacent pixel 1 distributed above and to the left of the first pixel, an adjacent pixel 2 distributed directly above the first pixel, an adjacent pixel 3 distributed above and to the right of the first pixel, an adjacent pixel 4 distributed to the right of the first pixel, an adjacent pixel 5 distributed below and to the right of the first pixel, an adjacent pixel 6 distributed directly below the first pixel, an adjacent pixel 7 distributed below and to the left of the first pixel, and an adjacent pixel 8 distributed to the left of the first pixel.
For the first pixel, the first maximum value in the color value of the first pixel and the difference between the second maximum value in the color value of each adjacent pixel in 8 adjacent pixels are respectively calculated, so that 8 differences can be obtained. In the embodiment of the present application, the first maximum value refers to a color maximum value in the first pixel color value, and the second maximum value refers to a color maximum value in the adjacent pixel color value, and the first maximum value and the second maximum value are only used to distinguish the color maximum value in the first pixel color value from the color maximum value in the adjacent pixel color value.
After calculating to obtain a difference value between a first maximum value in the color values of the first pixel and a second maximum value in the color values of each adjacent pixel, respectively determining marking information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used for marking differences in different ranges.
It can be understood that, when determining the tag information corresponding to each difference, in view of the similarity of the determination methods of the tag information corresponding to each difference, to avoid redundancy, the description may be given by taking the determination of the tag information corresponding to any difference as an example.
For example, when determining the mark information corresponding to the difference value, at least two possible implementations may be included, and in one possible implementation, the controller may be configured to: if the difference value is larger than the first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as first mark information; or if the difference value is greater than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as second marking information; or if the difference is smaller than or equal to the first threshold, determining that the mark information corresponding to the difference is the third mark information.
The value of the first threshold may be set according to actual needs, and here, the embodiment of the present application is not further limited to the value of the first threshold.
Alternatively, in another possible implementation, the controller may be configured to: further calculating the ratio of the difference value to the brightness of the first pixel, and if the ratio is greater than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as first mark information; or if the ratio is greater than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as second marking information; or if the ratio is smaller than or equal to the first threshold, determining that the mark information corresponding to the difference is the third mark information.
The value of the second threshold may be set according to actual needs, and here, the embodiment of the present application is not further limited to the value of the second threshold.
For example, the first flag information may be 1, the second flag information may be-1, and the third flag information may be 0; the first flag information may be 2, the second flag information may be-2, and the third flag information may be 0; specifically, the setting may be performed according to actual needs, as long as differences in different ranges can be distinguished, and here, the embodiment of the present application is described by taking the first flag information as 1, the second flag information as-1, and the third flag information as 0 as an example, but the embodiment of the present application is not limited thereto.
After the mark information corresponding to each difference value is determined, whether the brightness of the second pixel is adjusted or not can be further determined according to the mark information corresponding to each difference value. It should be noted that, in the embodiment of the present application, when determining whether to perform brightness adjustment, the adjustment is based on a difference between a color value of a first pixel in an image to be displayed and a color value of an adjacent pixel, but an object of the adjustment is a pixel in a second display disposed below, so that by analyzing the color value of the first pixel in the image to be displayed and adjusting the brightness of the pixel in the display disposed below based on the color value of the first pixel in the image to be displayed, the definition of image display can be improved to some extent.
For example, when determining whether to adjust the brightness of the second pixel according to the flag information corresponding to each difference value, the controller may be configured to:
in one case, if the mark information corresponding to each difference is the first mark information; that is, each difference is greater than the first threshold, and the luminance of the first pixel is higher than the luminance of each adjacent pixel, it is determined that the luminance of the second pixel needs to be adjusted.
In another case, if the label information corresponding to each difference is the second label information, that is, each difference is greater than the first threshold, and the luminance of the first pixel is lower than the luminance of each adjacent pixel, it is determined that the luminance of the second pixel needs to be adjusted.
In another case, if the mark information corresponding to each difference value includes third mark information, other non-third mark information is the first mark information or the second mark information, and the number of the other non-third mark information is greater than the second threshold, that is, there is a difference value less than or equal to the first threshold in each difference value, and the other difference values are greater than the first threshold, and the luminance of the first pixel is higher than the luminance of the adjacent pixel corresponding to the other difference values; or, if all the other difference values are greater than the first threshold value, the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the other difference values, and the number of the other difference values is greater than the second threshold value, it is determined that the brightness of the second pixel needs to be adjusted.
It should be noted that, in the embodiment of the present application, in all cases other than the above three cases, for example, when a part of the tag information corresponding to each difference is the first tag information, and a part of the tag information corresponding to each difference is the second tag information; or, when the mark information corresponding to each difference value includes third mark information, and a part of other non-third mark information is the first mark information, and another part is the second mark information, etc., it is determined that the brightness of the second pixel does not need to be adjusted.
And c, if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness.
For example, in the embodiment of the present application, when the brightness of the second pixel is adjusted to determine the target brightness of the second pixel, the controller may be configured to:
in one case, the increasing process may be performed on the luminance of the second pixel, and the increasing process may include:
if the mark information corresponding to each difference is the first mark information, that is, each difference is greater than the first threshold, and the luminance of the first pixel is higher than the luminance of each adjacent pixel, the luminance of the second pixel needs to be increased, and the increased luminance is determined as the target luminance of the second pixel.
Or,
and if the mark information corresponding to each difference value comprises third mark information, the other non-third mark information is the first mark information, and the number of the other non-third mark information is greater than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel.
It is to be understood that, in the embodiment of the present application, increasing the luminance of the second pixel means further increasing the luminance of the second pixel on the basis of the initial luminance of the second pixel. For example, when determining the initial brightness of the second pixel, the average gray scale and the histogram of the image to be displayed may be calculated first, and the average gray scale and the histogram may be combined to determine the initial brightness of the second pixel.
For example, when the brightness of the second pixel is increased and the increased brightness is determined as the target brightness of the second pixel, at least two possible implementations may be included:
in one possible implementation, the brightness of the second pixel may be increased by an offset, and the increased brightness may be determined as the target brightness of the second pixel. The specific process is as follows: the offset b may be set in advance, b is greater than 0, and assuming that the initial luminance of the second pixel is a, the offset b may be increased on the basis of the initial luminance a, and the value of a + b may be determined as the target luminance of the second pixel.
In another possible implementation manner, the brightness of the second pixel may be increased by means of a gain factor, and the increased brightness may be determined as the target brightness of the second pixel. The specific process is as follows: different gain coefficients k may be preset, where k is greater than 1, and assuming that the initial luminance of the second pixel is a, the gain coefficient k may be multiplied on the basis of the initial luminance a, and the value of k × a may be determined as the target luminance of the second pixel.
It should be noted that, in the embodiment of the present application, values of the offset b and the gain coefficient k may be set according to actual needs, and here, the embodiment of the present application is not further limited to the values of the offset b and the gain coefficient k.
In another case, the reduction processing may be performed on the luminance of the second pixel, and the case of the reduction processing includes:
if the mark information corresponding to each difference is the second mark information, that is, each difference is greater than the first threshold, and the luminance of the first pixel is lower than the luminance of each adjacent pixel, the luminance of the second pixel needs to be reduced, and the reduced luminance is determined as the target luminance of the second pixel.
Or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is second mark information, and the number of the other non-third mark information is greater than a second threshold value, reducing the brightness of the second pixel, and determining the reduced brightness as the target brightness of the second pixel.
It is to be understood that, in the embodiments of the present application, decreasing the luminance of the second pixel refers to further decreasing the luminance of the second pixel on the basis of the initial luminance of the second pixel. For example, when determining the initial brightness of the second pixel, the average gray scale and the histogram of the image to be displayed may be calculated first, and the average gray scale and the histogram may be combined to determine the initial brightness of the second pixel.
For example, when the brightness of the second pixel is reduced and the reduced brightness is determined as the target brightness of the second pixel, at least two possible implementations may be included as well:
in one possible implementation manner, the brightness of the second pixel may be increased by an offset, and the increased brightness may be determined as the target brightness of the second pixel. The specific process is as follows: the offset c may be set in advance, c is smaller than 0, and assuming that the initial luminance of the second pixel is a, the offset c may be increased on the basis of the initial luminance a, and the value of a + c may be determined as the target luminance of the second pixel.
In another possible implementation manner, the brightness of the second pixel may be increased by means of a gain factor, and the increased brightness may be determined as the target brightness of the second pixel. The specific process is as follows: different gain coefficients m may be preset, m is smaller than 1, and assuming that the initial brightness of the second pixel is a, the gain coefficient m may be multiplied on the basis of the initial brightness a, and the value of m × a may be determined as the target brightness of the second pixel.
It should be noted that, in the embodiment of the present application, values of the offset c and the gain coefficient m may be set according to actual needs, and here, the embodiment of the present application is not further limited to the values of the offset c and the gain coefficient m.
After the brightness of the second pixel is adjusted to the target brightness, the image to be displayed can be displayed through the first display and the brightness-adjusted second display, that is, the following step d is executed:
and d, displaying the image to be displayed through the first display and the second display after the brightness is adjusted.
It can be understood that, when the image to be displayed is displayed by the first display and the second display after brightness adjustment, the image to be displayed is also the initially received image to be displayed, and the brightness of the second pixel in the image to be displayed is not changed.
It can be seen that, in the embodiment of the application, when the image is displayed through the screen-folding display device, the image to be displayed can be obtained first; the image to be displayed comprises a plurality of first pixels; determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; if the brightness of the second pixel is determined to be adjusted according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness; and displaying the image to be displayed through the first display and the second display after the brightness is adjusted. Therefore, the brightness of the pixels in the display below is adjusted in a targeted manner by analyzing the color value of the first pixel in the image to be displayed and based on the difference between the color value of the first pixel and the color value of each adjacent pixel, so that the definition of image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display after brightness adjustment.
Fig. 4 is a schematic flowchart of a method for adjusting image display definition according to an embodiment of the present disclosure, for example, please refer to fig. 4, where the method for adjusting image display definition may include:
s401, acquiring an image to be displayed; the image to be displayed comprises a plurality of first pixels.
S402, aiming at each first pixel, determining a difference value between the color value of the first pixel and the color value of each adjacent pixel in a plurality of adjacent pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; and the pixels in the image to be displayed correspond to the pixels in the second display one by one.
And S403, if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to the target brightness.
And S404, displaying the image to be displayed through the first display and the second display after the brightness adjustment.
In one possible implementation, determining a difference between the color value of the first pixel and the color value of each of the plurality of neighboring pixels includes:
a first maximum value in the first pixel color value and a second maximum value in each neighboring pixel color value are determined, respectively.
The difference between the first maximum and the second maximum in each adjacent pixel color value is determined separately.
In a possible implementation manner, determining whether to adjust the brightness of a second pixel corresponding to a first pixel in a second display according to a difference between a color value of the first pixel and color values of adjacent pixels includes:
according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, respectively determining the marking information corresponding to each difference value; wherein different marking information is used for marking differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the mark information corresponding to each difference value.
In a possible implementation manner, determining, according to a difference between a color value of a first pixel and a color value of each adjacent pixel, marking information corresponding to each difference, respectively includes:
for each difference value, if the difference value is greater than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as first mark information; or,
if the difference value is larger than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
and if the difference is smaller than or equal to the first threshold, determining the mark information corresponding to the difference as third mark information.
In a possible implementation manner, determining whether to adjust the brightness of the second pixel according to the mark information corresponding to each difference value includes:
if the mark information corresponding to each difference value is the first mark information; or,
if the mark information corresponding to each difference value is the second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, the other non-third mark information is the first mark information or the second mark information, and the quantity of the other non-third mark information is greater than a second threshold value, determining to adjust the brightness of the second pixel.
In one possible implementation, determining a target brightness for the second pixel includes:
if the mark information corresponding to each difference value is the first mark information; or,
if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is the first mark information, and the number of the other non-third mark information is larger than a second threshold value, the brightness of the second pixel is increased, and the increased brightness is determined as the target brightness of the second pixel;
if the mark information corresponding to each difference value is the second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is second mark information, and the number of the other non-third mark information is greater than a second threshold value, reducing the brightness of the second pixel, and determining the reduced brightness as the target brightness of the second pixel.
In a possible implementation manner, the method for adjusting the image display definition may further include:
determining a complex area in an image to be displayed; pixels in the complex area are determined as a plurality of first pixels.
The implementation principle and the beneficial effect of the method for adjusting the image display definition shown in the embodiment of the application are similar to those of the screen-folding display device, and the implementation principle and the beneficial effect of the screen-folding display device can be referred to, and are not repeated here.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, indirect coupling or communication connection between devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A stacked screen display device, comprising:
a first display and a second display disposed below the first display, the first display and the second display configured to display an image screen and a user interface;
a controller connected to the first display and the second display, the controller configured to:
acquiring an image to be displayed; wherein the image to be displayed comprises a plurality of first pixels;
determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; the pixels in the image to be displayed correspond to the pixels in the second display one by one;
if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness;
and displaying the image to be displayed through the first display and the second display after the brightness is adjusted.
2. The screen stack display apparatus of claim 1, wherein the controller is configured to:
determining a first maximum value of the first pixel color values and a second maximum value of the adjacent pixel color values respectively;
and respectively determining the difference value between the first maximum value and the second maximum value in the color values of the adjacent pixels.
3. The screen stack display apparatus of claim 1, wherein the controller is configured to:
respectively determining marking information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein, different marking information is used for marking difference values in different ranges;
and determining whether to adjust the brightness of the second pixel according to the mark information corresponding to the difference values.
4. The screen stack display apparatus of claim 3, wherein the controller is configured to:
for each difference value, if the difference value is greater than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is first mark information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining that the mark information corresponding to the difference value is second mark information; or,
and if the difference is smaller than or equal to a first threshold value, determining that the mark information corresponding to the difference is third mark information.
5. The screen stack display apparatus of claim 4, wherein the controller is configured to:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is the first mark information or the second mark information, and the number of the other non-third mark information is greater than a second threshold value, determining to adjust the brightness of the second pixel.
6. The screen stack display apparatus of claim 5, wherein the controller is configured to:
if the mark information corresponding to each difference value is first mark information; or,
if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is first mark information, and the number of the other non-third mark information is greater than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel;
if the mark information corresponding to each difference value is second mark information; or,
and if the mark information corresponding to each difference value comprises third mark information, other non-third mark information is second mark information, and the number of the other non-third mark information is greater than a second threshold value, reducing the brightness of the second pixel, and determining the reduced brightness as the target brightness of the second pixel.
7. The multi-screen display device of any of claims 1-6, wherein the controller is further configured to:
determining a complex area in the image to be displayed;
determining pixels in the complex area as the plurality of first pixels.
8. A method for adjusting image display definition is applied to a screen-folding display device, wherein the screen-folding display device comprises a first display and a second display arranged below the first display, and the method comprises the following steps:
acquiring an image to be displayed; the image to be displayed comprises a plurality of first pixels;
determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of neighboring pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference between the color value of the first pixel and the color value of each adjacent pixel; the pixels in the image to be displayed correspond to the pixels in the second display one by one;
if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness;
and displaying the image to be displayed through the first display and the second display after the brightness is adjusted.
9. The method of claim 8, wherein determining the difference between the color value of the first pixel and the color values of each of a plurality of neighboring pixels comprises:
determining a first maximum value of the first pixel color values and a second maximum value of the adjacent pixel color values respectively;
and respectively determining the difference value between the first maximum value and the second maximum value in the color values of the adjacent pixels.
10. The method of claim 8, wherein determining whether to adjust the brightness of a second pixel of the second display corresponding to the first pixel based on a difference between the color value of the first pixel and the color values of the neighboring pixels comprises:
according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, respectively determining the marking information corresponding to each difference value; wherein, different marking information is used for marking difference values in different ranges;
and determining whether to adjust the brightness of the second pixel according to the mark information corresponding to the difference values.
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