Picture adjustment device, display device, and picture adjustment method

Abstract

The application discloses a picture adjusting device, a display device and a picture adjusting method. The picture adjusting device comprises a signal acquisition module configured to acquire a display signal; a mode judging module connected with the signal acquisition module and configured to judge a display mode as a window mode or a full screen mode based on the display signal; a parameter adjusting module connected with the mode judging module and configured to adjust display parameters of a window area and a non-window area respectively when the display mode is the window mode, so as to reduce residual image; and a parameter maintaining module connected with the mode judging module and configured to maintain the display parameters as default values when the display mode is the full screen mode. The embodiment of the application effectively reduces the residual image of an OLED display and improves the user experience.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to display technology. More particularly, a picture adjustment device, a display device and a picture adjustment method are provided. BACKGROUND

[0002] Organic Light-Emitting Diode (OLED) displays have been widely used in the market. Compared with traditional LCDs, OLED displays have higher contrast, higher brightness and wider color gamut. In addition, since OLED displays do not need a backlight source, the display can be made thinner. In short, OLED displays have great advantages over LCDs.

[0003] However, OLED displays also have certain defects. When displaying a static picture for a long time, the organic light-emitting diode is accelerated to wear, thereby causing residual images and affecting the user experience. In addition, the display content of the existing display is often windowed. For example, when displaying the initial picture, the television realizes dynamic pictures in some areas of the display, and in other areas, it usually displays posters or menu bars, which are generally static pictures. This exacerbates the problem of residual images of OLED displays to some extent. Therefore, how to alleviate the residual images of OLED displays has become a problem to be solved. SUMMARY

[0004] To solve the problems set forth in the background, embodiments of the present application provide a picture adjustment device, a display device and a picture adjustment method, which reduce the residual images of OLED displays.

[0005] In a first aspect, the present application provides a picture adjustment device, comprising:

[0006] a signal acquisition module configured to acquire a display signal;

[0007] a mode determination module connected to the signal acquisition module and configured to determine, based on the display signal, whether the display mode is a window mode or a full-screen mode;

[0008] A parameter adjusting module connected with the mode judging module is configured to adjust display parameters of a window region and a non-window region respectively to reduce residual image when the display mode is the window mode, wherein the window region is a display region displaying a picture corresponding to the display signal, the non-window region is a display region other than the window region, and the display parameters at least include one of brightness, gray scale value, contrast, saturation and color intensity, and the display parameters remain as default values before being adjusted;

[0009] A parameter maintaining module connected with the mode judging module is configured to maintain the display parameters as the default values when the display mode is the full screen mode.

[0010] In a second aspect, the present application further provides a display device, comprising:

[0011] a display configured to display an interface;

[0012] a communicator configured to be communicatively connected with a picture adjusting device;

[0013] a controller connected with the communicator and configured to adjust display parameters of a window region and a non-window region respectively to reduce residual image in response to an adjusting signal sent by the picture adjusting device received;

[0014] wherein the window region is a display region displaying a picture corresponding to the display signal, the non-window region is a display region other than the window region, and the display parameters at least include one of brightness, gray scale value, contrast, saturation and color intensity, and the display parameters of the display remain as default values before being adjusted;

[0015] Alternatively, the controller is configured to maintain the display parameters as the default values in response to a maintaining signal sent by the picture adjusting device received.

[0016] In a third aspect, the present application further provides a picture adjusting method, comprising:

[0017] obtaining a display signal;

[0018] judging a display mode as a window mode or a full screen mode based on the display signal;

[0019] If the display mode is window mode, the display parameters of the window area and the non-window area are adjusted respectively to reduce ghosting; wherein, the window area is the display area that displays the image corresponding to the display signal, and the non-window area is the display area outside the window area. The display parameters include at least one of brightness, grayscale value, contrast, saturation and color intensity. Before adjustment, the display parameters are kept at the default value.

[0020] If the display mode is full-screen mode, then the display parameters are kept at the default values.

[0021] Fourthly, the present invention also provides a method for adjusting an image, the method comprising:

[0022] In response to the adjustment signal sent by the screen adjustment device, the display parameters of the window area and the non-window area are adjusted respectively to reduce ghosting;

[0023] Wherein, the window area is the display area that displays the image corresponding to the display signal, the non-window area is the display area outside the window area, and the display parameters include at least one of brightness, grayscale value, contrast, saturation and color intensity. Before adjustment, the display parameters of the monitor are kept at the default value.

[0024] Alternatively, in response to a hold signal received from the screen adjustment device, the display parameters are held at the default value.

[0025] From the above technical solutions can be known, the embodiment of the application sets picture adjustment device, including signal acquisition module, configured to acquire display signal;With signal acquisition module connected mode judgment module, configured to determine whether the display mode is window mode based on display signal;With mode judgment module connected parameter adjustment module, configured to adjust the display parameters of window area and non-window area respectively, to reduce the residual image;Wherein, the window area is the display area of the picture corresponding to the display signal, the non-window area is the display area outside the window area, the display parameter at least includes one of brightness, gray value, contrast, saturation and color intensity, before adjustment, the display parameter keeps as the default value;Parameter keeping module, parameter keeping module and mode judgment module are connected, configured to keep the display parameter as the default value. Thus, the embodiment of the application can acquire display signal through signal acquisition module, determine whether the display mode is window mode through mode judgment module, adjust the display parameters of window area and non-window area when the display mode is window mode, and reduce the residual image. Since only the window area is the display area of the picture corresponding to the display signal, appropriate adjustment of the display parameters of window area and non-window area can achieve the purpose of not affecting the user's experience and reducing the screen residual image. When the display mode is not window mode, the display parameter keeps as the default value, which also does not affect the user's experience. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced below, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 The schematic diagram of the operation scene of a picture adjustment device according to an exemplary embodiment of the present application is shown.

[0028] Figure 2 The configuration block diagram of a display device according to an exemplary embodiment of the present application is shown.

[0029] Figure 3 The schematic diagram of the first display picture shown by the present application is shown.

[0030] Figure 4 The schematic diagram of the second display picture shown by the present application is shown.

[0031] Figure 5 The structural schematic diagram of a picture adjustment device according to an exemplary embodiment of the present application is shown.

[0032] Figure 6A flowchart of a picture adjustment method according to an exemplary embodiment of the present application is shown in FIG. 1.

[0033] Figure 7 A detailed flowchart of a first picture adjustment method according to an exemplary embodiment of the present application is shown in FIG. 2.

[0034] Figure 8 A detailed flowchart of a second picture adjustment method according to an exemplary embodiment of the present application is shown in FIG. 3.

[0035] Figure 9 A detailed flowchart of a third picture adjustment method according to an exemplary embodiment of the present application is shown in FIG. 4.

[0036] Figure 10 A schematic diagram of an adjusted display picture according to an exemplary embodiment of the present application is shown in FIG. 5.

[0037] Figure 11 A detailed flowchart of a fourth picture adjustment method according to an exemplary embodiment of the present application is shown in FIG. 6. DETAILED DESCRIPTION

[0038] In order to make the objects and embodiments of the present application clearer, the following will describe the exemplary embodiments of the present application in conjunction with the accompanying drawings of the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application.

[0039] It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the following described embodiments, but are not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0040] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or similar objects or entities, but do not necessarily mean to limit the specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0041] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not necessarily limit to all the components clearly listed, but can include other components not clearly listed or inherent to these products or devices.

[0042] Figure 1 A schematic diagram of a picture adjustment device operation scenario according to an exemplary embodiment of the present application is shown in FIG. 7. As shown in FIG. 7, the picture adjustment device can include a display device 701, a picture adjustment device 702, and a user interface 703. Figure 1As shown, a user can operate the display device 200 through the smart device 300 or the remote control device 100. The display device provided by the embodiments of the present application can have various implementation forms, for example, can be a television, a smart television, a laser projection device, a monitor, an electronic bulletin board, an electronic table, etc.

[0043] In some embodiments, the remote control device 100 can be a remote controller, and the communication between the remote control device 100 and the display device 200 can include infrared protocol communication or Bluetooth protocol communication, and other short-distance communication modes, to control the display device 200 through wireless or wired mode. The user can input user instructions through key input, voice input, control panel input, etc. on the remote control device 100, to control the display device 200. The remote control device 100 can receive the input operation instructions of the user, and the remote control device 100 converts the operation instructions into instructions that the display device 200 can recognize and respond to, to play the role of an intermediary between the user and the display device 200.

[0044] In some embodiments, the smart device 300, for example, a mobile terminal, a tablet computer, a computer, a notebook computer, etc. can also be used to control the display device 200. For example, an application running on the smart device is used to control the display device 200.

[0045] In some embodiments, the display device 200 can not receive instructions using the above-mentioned smart device or control device, but can receive user control through touch or gesture, etc.

[0046] In some embodiments, the display device 200 can also be controlled in a manner other than the remote control device 100 and the smart device 300, for example, can directly receive user voice instructions through a voice instruction acquisition module configured inside the display device 200, or can receive user voice instructions through a voice control device arranged outside the display device 200.

[0047] In some embodiments, the display device 200 also communicates data with the server 400. The display device 200 can be allowed to communicate through a local area network (LAN), a wireless local area network (WLAN), and other network communication connections. The server 400 can provide various content and interaction to the display device 200. The server 400 can be one cluster or multiple clusters, and can include one or more types of servers.

[0048] Figure 2 A configuration block diagram of a display device according to an exemplary embodiment of the present application is shown. As shown in the figure, the display device 200 can include a display module 210, a processor 220, a storage module 230, a communication module 240, a power supply module 250, and a user interface 260. Figure 2As shown, the display device 200 includes at least one of a tuner and demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.

[0049] In some embodiments, the controller 250 includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an n-th interface for input / output.

[0050] The display 260 is configured to display an interface, including a display screen component for presenting a picture, and a driving component for driving image display, a component for receiving an image signal originating from a controller output, and a component for displaying video content, image content, and a menu control interface, and a user control UI interface.

[0051] The display 260 can be a liquid crystal display, an OLED display, and a projection display, and can also be a projection device and a projection screen. In the embodiments of the present disclosure, an OLED display is mainly taken as an example.

[0052] The communicator 220 is a component for communicating with an external device or a server according to various communication protocol types. For example, the communicator can include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 200 can be communicatively connected to the remote control device 100 or the server 400 through the communicator 220, that is, to establish the sending and receiving of control signals and data signals.

[0053] The user interface can be used to receive a control signal of the remote control device 100 (such as an infrared remote control device).

[0054] The detector 230 is configured to collect an external environment or a signal for external interaction. For example, the detector 230 includes a light receiver, and a sensor for collecting ambient light intensity. Alternatively, the detector 230 includes an image collector, such as a camera, which can be used to collect an external environment scene, a user attribute, or a user interaction gesture. Alternatively, the detector 230 includes a sound collector, such as a microphone, for receiving external sound.

[0055] The external device interface 240 can include, but is not limited to, any one or more of the following: a high-definition multimedia interface (HDMI), an analog or data high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, and the like. It can also be a composite input / output interface formed by the above-mentioned multiple interfaces.

[0056] The tuner and demodulator 210 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

[0057] In some embodiments, the controller 250 and the tuner and demodulator 210 can be located in different separate devices, i.e., the tuner and demodulator 210 can also be located in an external device of the main device in which the controller 250 is located, such as an external set-top box, etc.

[0058] The controller 250 controls the operation of the display device and responds to the user's operation by storing various software control programs in the memory. The controller 250 controls the overall operation of the display device 200. For example, in response to receiving a user instruction for selecting a UI object displayed on the display 260, the controller 250 can perform an operation related to the object selected by the user instruction.

[0059] In some embodiments, the controller 250 includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), a RAM (Random Access Memory), a ROM (Read-Only Memory), a first to n-th interface for input / output, a communication bus, etc.

[0060] The user can input a user instruction through a graphic user interface (GUI) displayed on the display 260, and the user input interface receives the user input instruction through the graphic user interface (GUI). Alternatively, the user can input a user instruction by inputting a specific sound or gesture, and the user input interface receives the user input instruction by recognizing the sound or gesture through a sensor.

[0061] The user interface is a medium interface for interaction and information exchange between an application program or an operating system and a user, and it implements conversion between an internal form of information and a form that a user can accept. A commonly used form of the user interface is a graphic user interface (GUI), which is a user interface that displays information in a graphic manner. It can be an icon, a window, a control, etc. displayed on a display screen of an electronic device, and the control can include an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a widget, etc.

[0062] In order to better guide the user to use the TV, the existing scheme usually designs the home interface (or preview mode) - a specific UI display mode, allowing to watch network video and physical channel signal through the small window, and the other part (in some application scenarios, it can also be called OSD (On Screen Display) area) introduces the information such as hot broadcast TV series or history record. During the video playing in the small window, the picture changes dynamically - the color and brightness of each pixel changes randomly, corresponding to the relatively "uniform" loss of screen light emission; the picture of the OSD part is fixed and does not change, and after a long time, the difference between light and dark is generated, and the "ghosting" phenomenon appears - especially when switching to the full-screen pure color card, it is particularly obvious.

[0063] In order to solve the above problems, the following scheme will be taken:

[0064] I. Among the reasons for the ghosting of the OLED display, the brightness is the most important - the same time, the same picture, the greater the brightness, the more serious the ghosting phenomenon. The OLED display can achieve super high definition, and the OSD part can be designed in dark style to reduce the overall brightness without affecting the user's viewing. The display content in the part area is in the form of a picture such as a poster, which cannot be solved by this way. Figure 3 The first kind of display picture shown in the present application is shown in the schematic diagram.

[0065] II. Most of the OLED displays will start the screen saver mechanism after a certain time without signal input (including no video playing under the home page), usually dynamically playing some scenery pictures and reducing the screen brightness. Through this form, the TV picture is kept changing randomly to ensure the relatively "uniform" loss of screen light emission and reduce the probability of ghosting. If there is a small window in this scenario, the size of the playing window can be detected - if the window is not full screen or less than a certain proportion of the window size, the screen saver is started after waiting for a certain time (such as five minutes). This method will affect some users who use the small window to watch video, and the experience is not good. Figure 4 The second kind of display picture shown in the present application is shown in the schematic diagram.

[0066] III. Some OLED displays have "local static frame" detection function - the whole picture is subdivided into a plurality of sub-regions (such as 64*64), the change of each sub-region picture is detected in real time, once the local picture is static for a certain time, the screen brightness is reduced to prevent the local area from appearing "ghosting". In the small window playing scenario, the "local static frame" function is triggered and the screen brightness is reduced due to the static picture around the small window. Since this function is designed for the scene of local area bright block during video playing, the amplitude of reducing the screen brightness is small. Long-term use of the small window playing may still cause "ghosting" phenomenon.

[0067] The three solutions described above achieve the anti-ghosting function for screen brightness from different angles and to varying degrees, but none of them can achieve a very good effect. When users remain in a small window playback scenario for a long time (or it may be the default setting when the TV is turned on, even if the user is not watching), the resulting "ghosting" phenomenon is quite serious.

[0068] Figure 3 This is a schematic diagram illustrating a display screen according to an exemplary embodiment of the present invention. Taking a television as an example, when displaying a screen, the television may divide it into multiple sections (or areas), such as... Figure 3 As shown, the area marked as a "small window" in the image generally corresponds to the dynamic image, that is, the display area of ​​the image corresponding to the display signal. Figure 3 Areas "1", "2", "3", "4", "5", "6", "7", "8", "9", and "10" in the display typically show static images, such as posters, menus, and advertisements. When watching television, especially for extended periods, users generally only focus on these static images. Figure 3 The display focuses on the content of the "small window" corresponding to the display area, without paying attention to the content of other areas. For OLED TVs, displaying static images for extended periods at excessively high brightness will exacerbate the image retention problem.

[0069] To address the aforementioned technical problems, some embodiments of the present invention provide a screen adjustment device. Figure 5 This is a schematic diagram illustrating the structure of a screen adjustment device according to an exemplary embodiment of the present invention. Figure 5 As shown, the image adjustment device includes a signal receiving module 510 configured to acquire a display signal; a mode determination module 520 configured to determine whether the display mode is a window mode based on the display signal; a parameter adjustment module 530 configured to adjust the display parameters of the window area and the non-window area respectively to reduce ghosting; and a parameter holding module 540 configured to keep the display parameters at default values. The window area is the display area of ​​the image corresponding to the display signal, and the non-window area is the display area outside the window area. The display parameters include at least one of brightness, grayscale value, contrast, saturation, and color intensity. Before adjustment, the display parameters are kept at default values. The mode determination module 520 is electrically connected to the signal receiving module 510, the parameter adjustment module 530 is electrically connected to the mode determination module 520, and the parameter holding module 540 is electrically connected to the mode determination module. In the above embodiment, the display signal represents the signal corresponding to the content requested by the user, applied to the above... Figure 3This refers to the signal corresponding to the content displayed in the "small window" area. Display modes can include windowed mode and full-screen mode. When the display mode is windowed, the image corresponding to the display signal is windowed, and the size of the image is smaller than the total display area of ​​the monitor. For example... Figure 3 When the display mode is in full-screen mode, the image corresponding to the display signal is displayed in full-screen mode. The size of the image corresponding to the display signal is equal to the total display area of ​​the monitor, meaning the image corresponding to the display signal fills the entire monitor. The window area represents the display area of ​​the image corresponding to the display signal, as described above. Figure 3 The area corresponding to the "small window" in the middle, and the non-window area represents the display area outside the screen corresponding to the display signal, i.e., the above. Figure 3 The areas corresponding to "1", "2", "3", "4", "5", "6", "7", "8", "9", and "10" in this example; in some application scenarios, the non-window area in this embodiment can also be called the OSD (On Screen Display) area, that is, the area where the set content is displayed. It should be noted that, although the above... Figure 3 The example provided does not imply that the window area can only be within a certain range when the display mode is windowed. Figure 3 The position of the "small window" area in the middle should be understood by those skilled in the art. The position of the window area can be changed or moved at will. The default value represents the initial value of the display parameters when the user does not actively adjust the display parameters or adjust the display parameters through the screen adjustment device in this embodiment. In some application scenarios, the default value can also be called the default value.

[0070] After receiving the display signal, the signal receiving module 510 can send the display signal to the mode determination module 520. The mode determination module 520 calculates whether the screen corresponding to the display signal is in full-screen mode based on information such as the resolution of the display screen contained in the display signal. The method for determining whether it is in window mode can be any method well known to those skilled in the art, and is not limited here. After the mode determination module 520 determines that the display mode is window mode based on the display signal, it can send a first confirmation signal to the parameter adjustment module 530. After receiving the first confirmation signal, the parameter adjustment module 530 immediately generates an adjustment command and adjusts the brightness of the window area and the non-window area respectively based on the adjustment command. More specifically, for example, if the default brightness is 100%, the brightness of the window area can be reduced to 80%, and the brightness of the non-window area can be reduced to 20%, etc. If the display mode is full-screen mode, a second confirmation signal can be sent to the parameter holding module 540. After receiving the second confirmation signal, the parameter holding module 540 generates a holding command and keeps the display parameters unchanged based on the holding command.

[0071] Based on the above scheme, the embodiment of the present disclosure starts from the principle of the OLED display, adjusts the display parameters of the window area and the non-window area respectively when the display mode is the window mode without affecting the user experience, and reduces the residual image of the OLED display.

[0072] Figure 6 A flowchart of a picture adjustment method according to an exemplary embodiment of the present application is shown. In some embodiments, the picture adjustment device performs the following steps shown in Figure 6

[0073] S501, obtaining a display signal;

[0074] S502, judging whether the display mode is a window mode or a full screen mode based on the display signal, if the display mode is the window mode, performing S503, and if the display mode is the full screen mode, performing S504;

[0075] S503, adjusting the display parameters of the window area and the non-window area respectively to reduce the residual image;

[0076] The window area is the display area of the picture corresponding to the display signal, the non-window area is the display area outside the window area, and the display parameters at least include one of brightness, gray scale value, contrast, saturation and color intensity. Before adjustment, the display parameters remain as default values;

[0077] S504, keeping the display parameters as default values.

[0078] In some embodiments, the picture adjustment device can obtain a display signal, judge whether the display mode is a window mode or a full screen mode according to the display signal, adjust the display parameters of the window area and the non-window area respectively when the display mode is the window mode, and keep the display parameters as default values when the display mode is the full screen mode. Based on this adjustment method, starting from the principle of the OLED display, for example, reducing the brightness values of the non-window area and the window area by different degrees, the residual image of the OLED display is reduced without affecting the user experience.

[0079] Figure 7 A specific flowchart of the first picture adjustment method according to an exemplary embodiment of the present application is shown. In some embodiments, after the mode judgment module 520 is configured to judge whether the display mode is a window mode or a full screen mode based on the display signal, it also performs the following steps shown in Figure 7

[0080] S601, judging whether the display duration corresponding to the display signal is greater than or equal to a first time threshold based on the display signal, if yes, performing S503, and if no, performing S504. ​​

[0081] In some embodiments, even if the display mode corresponding to the display signal is the window mode, it is possible that the display parameter does not need to be adjusted due to the short display time length of the picture corresponding to the display signal. For example, the display mode of the display signal is the window mode, but the display time length of the picture corresponding to the display signal is only 10s (time unit: second), so the display parameter does not need to be adjusted. After the mode judgment module 530 judges that the display mode is the window mode based on the display signal, it can perform the above steps, that is, after the mode judgment module 530 judges that the display mode is the window mode, it can judge whether the display time length corresponding to the display signal is greater than or equal to the first time threshold based on the display signal. For example, the first time threshold is 1min (time unit: minute), and the display time length corresponding to the display signal is 10min, so obviously the display time length is greater than the first time threshold, and a first confirmation signal can be sent to the parameter adjustment module 530 to make the parameter adjustment module 530 perform the above step S503. Similarly, if the display time length is less than the first time threshold, a second confirmation signal can be sent to the parameter keeping module 540 to make the parameter keeping module perform the above step S504.

[0082] Based on the above scheme, it is possible to more accurately determine whether to adjust the display parameter according to the actual scene, and prevent the situation of too frequent adjustment of the display parameter.

[0083] Figure 8 A specific flowchart of the second picture adjustment method according to the exemplary embodiments of the present application is shown. In some embodiments, after the mode judgment module 520 is configured to judge whether the display time length corresponding to the display signal is greater than or equal to the first time threshold based on the display signal, and before performing S503, it further includes:

[0084] S701, generating a full-screen prompt instruction and starting first time counting;

[0085] The full-screen prompt instruction is used to prompt the user to switch the display mode to the full-screen mode, and the counting time length of the first time counting is the first time length;

[0086] S702, within the first time length, judging whether a picture switching instruction issued by the user is received, if the picture switching instruction for switching to the full-screen is received, performing S703, if the picture switching instruction for keeping the window is received, performing S704, and if no picture switching instruction is received within the first time length, performing S705;

[0087] S703, switching the display mode to the full-screen mode, and performing S504;

[0088] S704, keeping the display mode as the window mode, and performing S503;

[0089] S705, switching the display mode to the full screen mode after the first time length, and performing S504.

[0090] In some embodiments, in order to reduce the residual image problem from the principle of the OLED display, the user can be guided to change the window mode to the full screen mode, improve the viewing experience, and reduce the time length of the OLED display displaying static pictures, thereby reducing the residual image. Therefore, the mode judgment module 520 is configured to judge whether the display time length corresponding to the display signal is greater than or equal to the first time length threshold based on the display signal, and after determining that the display time length is greater than or equal to the first time length threshold, the mode judgment module 520 can further generate a full screen prompt instruction to prompt the user to switch to the full screen mode, and generate a timing instruction to start the first timing, and the timing time length corresponding to the first timing is the first time length; if a picture switching instruction of the user is received within the first time length, the display mode is adjusted according to the picture switching instruction of the user; for example, a picture switching instruction of keeping the window is received, the display mode is kept as the window mode, and the parameter adjustment module 530 is caused to perform the above S503; for another example, a picture switching instruction of switching the full screen is received, the display mode is switched to the full screen mode, and the parameter retention module 540 is caused to perform the above S504; if no picture switching instruction is received within the first time length, the display mode is automatically switched to the full screen mode after the first time length, and the parameter retention module 540 is caused to perform the above S504; in the above scheme, the received picture switching instruction can be in any form, for example, the user controls through voice, or controls through a remote control device, or controls through a smart device, and the like.

[0091] Based on the above scheme, the user can be guided to switch the display mode to the full screen mode, thereby reducing the time length of the OLED display displaying static pictures and reducing the residual image; from the actual point of view, since appropriate guiding prompt sentences can be displayed on the display when the prompt of switching to the full screen mode is issued, for example, "it is suggested that you switch to the full screen to improve the viewing experience", and the like, the probability of switching the display mode to the full screen mode can be improved, and the residual image can be reduced; even if the user insists on selecting the window mode, the display parameters of the window area and the non-window area can be adjusted respectively by the parameter adjustment module 530 to reduce the residual image; based on various situations, various schemes are proposed to reduce the residual image.

[0092] Figure 9 A specific flowchart of a third picture adjustment method according to an exemplary embodiment of the present application is shown. In some embodiments, the parameter adjustment module 530 is configured to adjust the display parameters of the window area and the non-window area respectively, specifically including:

[0093] S801, start the second time counting, reduce the brightness value of the window region and the non-window region after the second time counting reaches the second time length, and end the second time counting;

[0094] S802, start the third time counting, reduce the gray value, contrast and saturation of the non-window region after the third time counting reaches the third time length, and end the third time counting.

[0095] In some embodiments, the adjustment of the display parameters is not completed at one time, in order to ensure the user experience, the time length of adjusting the display parameters needs to be extended, that is, after maintaining the display mode as the window mode, the parameter adjustment module 530 starts to execute the second time counting, and after the second time counting reaches the second time length, the brightness value of the window region and the non-window region is reduced, and the second time counting is ended, and the third time counting is started, and after the third time counting reaches the third time length, the gray value, contrast and saturation of the non-window region are reduced, and the third time counting is ended.

[0096] Referring to Table 1 below, Table 1 gives an example of the parameter adjustment scheme. Specifically, a plurality of different parameter adjustment schemes can be set, and the numbers shown in Table 1 are all reduction ratios; taking scheme one in Table 1 as an example, the second time length can be 100s, that is, after maintaining the window mode for 100s, the brightness value of the window region and the non-window region is reduced to 40% of the default value, for example, the brightness default value of the window region and the non-window region is 300nit (brightness unit: nit), and the brightness value of the window region and the non-window region can be reduced to 120nit; after reducing the brightness value to 120nit and maintaining for 100s, the gray value of the non-window region is reduced to 30% of the gray default value, the contrast of the non-window region is reduced to 50% of the contrast default value, and the saturation of the non-window region is reduced to 20% of the saturation default value; taking the default value of the gray value as 50 as an example (the gray value is between 0-100), the gray value of the non-window region can be reduced to 15, taking the default value of the contrast as 50 as an example (the contrast is between 0-100), the contrast of the non-window region can be reduced to 25, and taking the saturation as 50 as an example (the saturation is between 0-100), the saturation of the non-window region can be reduced to 10. For the user, the picture content of the non-window region is not cared by the user or is not the focus of the user's viewing, so the display parameters of the non-window region can be reduced to a lower level, greatly reducing the ghosting, and at the same time not affecting the user experience; and the window region is the focus of the user's viewing, so the adjustment of the display parameters should be limited, and the display parameters are reduced to reduce the ghosting without affecting the user experience. Figure 10 Fig. 2 is a schematic diagram of the adjusted display picture according to the exemplary embodiments of the present application.

[0097] In some embodiments, a plurality of parameter adjustment schemes can be preset, in each of which the corresponding first time length, brightness reduction ratio, second time length, gray value reduction ratio, contrast reduction ratio, and saturation reduction ratio are all preset and have certain differences, so as to improve the usability and adaptability of the parameter adjustment scheme; the user can preselect different parameter adjustment schemes, and after selecting an adjustment scheme, the parameter adjustment module 530 can adjust the display parameters of the window region and the non-window region respectively based on the selected parameter adjustment scheme to reduce the residual image.

[0098] In some embodiments, a plurality of parameter adjustment schemes can also be preset, in each of which the corresponding first time length, brightness reduction ratio, second time length, gray value reduction ratio, contrast reduction ratio, and saturation reduction ratio can all be set by the user, and the user can realize the function of editing the parameter adjustment scheme through specific operations, so as to make the picture adjustment method more suitable for each user.

[0099] Based on the above scheme, the display parameters of the window region and the non-window region can be adjusted in turn based on the timing length, the residual image is reduced without affecting the user experience; in addition, different parameter adjustment schemes can be preselected to make the parameter adjustment scheme more suitable for the user's use habits; in addition, the user can edit the parameter adjustment scheme by himself, so that the parameter adjustment scheme completely meets the user's personal needs and improves the user experience.

[0100] Table 1-Parameter adjustment scheme table

[0101]

[0102] Figure 11 A specific flowchart of the fourth picture adjustment method according to the exemplary embodiments of the present application is shown. In some embodiments, the parameter adjustment module 530 is configured to adjust the display parameters of the window region and the non-window region respectively, specifically including:

[0103] S1001, reducing the color intensity of at least one primary color of the window region, green, and blue, and restoring the color intensity to the default value again after reducing the color intensity of any primary color.

[0104] Continuing to refer to Table 1, in some embodiments, the display parameter adjustment can be performed on the window region after or simultaneously with the display parameter adjustment on the non-window region. A color fine-tuning switch can be provided, which is connected to the parameter adjustment module 540. The parameter adjustment module 540 can generate color adjustment instructions for reducing the color intensity of the three primary colors of red, green and blue in turn according to a preset adjustment sequence and send the color adjustment instructions to the color fine-tuning switch. The color fine-tuning switch adjusts the color intensity after receiving the color adjustment instructions. The default value of the color intensity of the three primary colors is 50 (the color intensity is between 0 and 100). The specific adjustment scheme can be: first, reduce the red intensity to 40% of the default value, then restore the red intensity to the default value, second, reduce the green intensity to 40% of the default value, then restore the green intensity to the default value, and then reduce the blue intensity to 40% of the default value, and then restore the green intensity to the default value; repeat the above process.

[0105] In some embodiments, in order to reduce the use experience of the user when adjusting the color intensity, taking the process of reducing the red intensity as an example, the red intensity can be adjusted in a relatively gentle process. For example, the red intensity can be reduced from 50 to 20, and the adjustment period can be 30s, that is, the red intensity is reduced by 1 per second. After the red intensity is reduced to 20, the adjustment period is 30s again, that is, the red intensity is increased by 1 per second, and the red intensity is restored to 50, so as to reduce the influence on the viewing experience of the user.

[0106] In some embodiments, the color intensity of the three primary colors of red, green and blue can also be adjusted synchronously.

[0107] In some embodiments, the color intensity of the three primary colors of red, green and blue can also be adjusted synchronously but in a distinguished order. For example, the adjustment period of the three primary colors of red, green and blue is 30s. The red intensity can be adjusted first, the green intensity can be adjusted 5s after the adjustment of the red intensity starts, and the blue intensity can be adjusted 5s after the adjustment of the green intensity starts.

[0108] Based on the above scheme, the color intensity of the window region can be adjusted, and the red, green and blue pixel point residual images can be reduced without affecting the use experience of the user.

[0109] In some embodiments, the parameter adjustment module 530 is configured to adjust the display parameters of the window region and the non-window region respectively, specifically including:

[0110] When adjusting the display parameters of the window region and the non-window region respectively, it is continuously judged whether an operation instruction from the user is received;

[0111] If yes, the display parameter is immediately restored to the default value;

[0112] If no, the display parameter is maintained at the adjusted value.

[0113] In some embodiments, when the display parameter of the window region and the non-window region is adjusted, or after the display parameter of the window region and the non-window region is adjusted, if the user inputs any operation instruction, for example, issues the operation instruction through a remote control device, or issues the operation instruction through voice, or issues the operation instruction through a smart device, it is represented that the user wants to operate, and the display parameter is immediately restored to the default value, so that the user can clearly see all the contents of the window region and the non-window region, and it is convenient for operation.

[0114] In specific implementations, the present application also provides a computer storage medium, wherein the computer storage medium can store a program, and the program can include some or all steps in the embodiments of the method provided by the embodiments of the present application when executed. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM) or a random access memory (RAM), etc.

[0115] Those skilled in the art can clearly understand that the technology in the embodiments of the present application can be realized by means of software and necessary general hardware platforms. Based on such understanding, the technical solutions in the embodiments of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM / RAM, a magnetic disc, an optical disc, etc., and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method of the embodiments of the present application or some parts of the embodiments.

[0116] It should be noted that the technical solutions described in some embodiments of the present application are applicable to all Bluetooth remote control technical fields with local wake-up function, and are not limited to the application scenarios of the remote control device remotely controlling the display device provided in the above embodiments. In addition, the specific type of the display device is not limited in the embodiments of the present application. In addition, the same and similar parts in the embodiments of the present application can be referred to each other, and the related content will not be described again. Moreover, the present application does not list all possible combination ways, and any combination of the technical features in the embodiments of the present application also belongs to the protection scope of the present application.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0118] The foregoing description has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations are possible in light of the above teachings or can be acquired from practice of the embodiments. The described embodiments were chosen and described in order to explain the principles of the application and its practical application to enable others skilled in the art to best use the application in various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A screen adjustment device, characterized in that, include: The signal acquisition module is configured to acquire display signals; A mode determination module, which is connected to the signal acquisition module, is configured to determine whether the display mode is window mode or full-screen mode based on the display signal. A parameter adjustment module, connected to the mode determination module, is configured to adjust the display parameters of the window area and the non-window area respectively when the display mode is window mode, so as to reduce ghosting; wherein, the window area is the display area displaying the image corresponding to the display signal, and the non-window area is the display area outside the window area, and the display parameters include at least one of brightness, grayscale value, contrast, saturation and color intensity, and the display parameters are kept at default values ​​before adjustment; A parameter holding module, which is connected to the mode determination module, is configured to keep the display parameters at the default values ​​when the display mode is full-screen mode; After the mode determination module is configured to determine whether the display mode is window mode or full-screen mode based on the display signal, it further includes: Based on the display signal, determine whether the display duration corresponding to the display signal is greater than or equal to a first duration threshold; If so, then the display parameters for the window area and the non-window area will be adjusted separately. If not, then execute the action to keep the display parameters at the default values; The mode determination module is configured to determine whether the display duration corresponding to the display signal is greater than or equal to a first duration threshold based on the display signal, and before adjusting the display parameters of the window area and the non-window area respectively, further comprising: A full-screen prompt instruction is generated and the first timer is started. The full-screen prompt instruction is used to prompt the user to switch the display mode to full-screen mode. The duration of the first timer is the first duration. Within the first time period, determine whether a screen switching command issued by the user has been received; If a screen switching command to switch to full screen is received, the display mode is switched to full screen mode, and the display parameters are kept at the default values. If a screen switching instruction to keep the window is received, the display mode is kept in window mode, and the display parameters of the window area and the non-window area are adjusted respectively. If no screen switching instruction is received within the first time period, the display mode is switched to full-screen mode after the first time period, and the display parameters are kept at the default value.

2. The image adjustment device according to claim 1, characterized in that, The parameter adjustment module is configured to adjust the display parameters of the window area and the non-window area respectively, specifically including: Start the second timer. After the second timer reaches the second duration, reduce the brightness values ​​of the window area and the non-window area, and end the second timer. Start the third timing. After the third timing duration reaches the third duration, reduce the grayscale value, contrast, and saturation of the non-window area, and end the third timing.

3. The image adjustment device according to claim 1, characterized in that, The parameter adjustment module is configured to adjust the display parameters of the window area and the non-window area respectively, specifically including: Reduce the color intensity of at least one of the primary colors, red, green, and blue, in the window area, and after reducing the color intensity of any one of the primary colors, restore the color intensity to the default value.

4. The image adjustment device according to claim 1, characterized in that, The parameter adjustment module is configured to adjust the display parameters of the window area and the non-window area respectively, specifically including: While performing the adjustment of display parameters for the window area and the non-window area respectively, it continuously determines whether an operation command from the user is received; If so, the display parameters will be immediately restored to their default values.

5. A display device, characterized in that, include: The display is configured to show the interface; A communicator is configured to communicate with the screen adjustment device according to any one of claims 1-4; A controller, connected to the communicator, is configured to adjust display parameters of the window area and the non-window area respectively in response to an adjustment signal sent by the screen adjustment device, in order to reduce ghosting; Wherein, the window area is the display area of ​​the image corresponding to the display signal, the non-window area is the display area outside the window area, and the display parameters include at least one of brightness, grayscale value, contrast, saturation and color intensity. Before adjustment, the display parameters of the monitor are kept at the default value. Alternatively, the controller is configured to maintain the display parameters at the default values ​​in response to a hold signal received from the screen adjustment device.

6. A method for adjusting an image, characterized in that, The method includes: Obtain the display signal; Based on the display signal, determine whether the display mode is window mode or full-screen mode; If the display mode is window mode, the display parameters of the window area and the non-window area are adjusted respectively to reduce ghosting; wherein, the window area is the display area that displays the image corresponding to the display signal, and the non-window area is the display area outside the window area. The display parameters include at least one of brightness, grayscale value, contrast, saturation and color intensity. Before adjustment, the display parameters are kept at the default value. If the display mode is full-screen mode, then the display parameters are kept at the default values; After determining whether the display mode is windowed mode or full-screen mode based on the display signal, the method further includes: Based on the display signal, determine whether the display duration corresponding to the display signal is greater than or equal to a first duration threshold; If so, then the display parameters for the window area and the non-window area will be adjusted separately. If not, then execute the action to keep the display parameters at the default values; After determining whether the display duration corresponding to the display signal is greater than or equal to a first duration threshold based on the display signal, and before adjusting the display parameters of the window area and the non-window area respectively, the method further includes: A full-screen prompt instruction is generated and the first timer is started. The full-screen prompt instruction is used to prompt the user to switch the display mode to full-screen mode. The duration of the first timer is the first duration. Within the first time period, determine whether a screen switching command issued by the user has been received; If a screen switching command to switch to full screen is received, the display mode is switched to full screen mode, and the display parameters are kept at the default values. If a screen switching instruction to keep the window is received, the display mode is kept in window mode, and the display parameters of the window area and the non-window area are adjusted respectively. If no screen switching instruction is received within the first time period, the display mode is switched to full-screen mode after the first time period, and the display parameters are kept at the default value.

7. The image adjustment method according to claim 6, characterized in that, The adjustment of display parameters for the window area and the non-window area respectively includes: Start the second timer. After the second timer reaches the second duration, reduce the brightness values ​​of the window area and the non-window area, and end the second timer. Start the third timer. After the duration of the third timer reaches the third duration, reduce the grayscale value, contrast, and saturation of the non-window area, and end the third timer. And / or, The adjustment of display parameters for the window area and the non-window area respectively includes: Reduce the color intensity of at least one of the primary colors, red, green, and blue, in the window area, and after reducing the color intensity of any one of the primary colors, restore the color intensity to the default value; And / or, The adjustment of display parameters for the window area and the non-window area respectively includes: While performing the adjustment of display parameters for the window area and the non-window area respectively, it continuously determines whether an operation command from the user is received; If so, the display parameters will be immediately restored to their default values.

Images