CN113015017A

CN113015017A - Image quality compensation method and display device

Info

Publication number: CN113015017A
Application number: CN202110275517.1A
Authority: CN
Inventors: 王兴
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Vidaa Netherlands International Holdings BV
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-06-22
Anticipated expiration: 2041-03-15
Also published as: CN113015017B

Abstract

The application discloses an image quality compensation method and display equipment, wherein certain offset is carried out on image quality parameters based on an environment light sensation subsection position, the missing of an image quality effect is effectively compensated, the display effect is improved, and the user experience is improved. The method comprises the following steps: acquiring the light intensity of the current environment, and adjusting the backlight output value of image display according to the light intensity; and determining the light sensing section interval where the light intensity is located, and adjusting image quality parameters according to the deviation value of the light sensing section interval.

Description

Image quality compensation method and display device

Technical Field

The present application relates to the field of display technologies, and in particular, to an image quality compensation method and a display device.

Background

In the backlight adjustment of the smart television, the integrated light sensing device is a very important and effective means, and the light sensing device can sense the ambient light change and adjust the backlight height according to the ambient light change. If the current ambient light is weak (for example, when the television is not turned on at night), the light intensity (Lux value) acquired by the light sensing device is low, and the software sets a relatively small backlight output value, so that the picture is not too dazzling. On the contrary, when the ambient light is strong, the Lux value obtained by the light sensing device is large, and the television sets a relatively large backlight output value, so that the situation that human eyes cannot distinguish television pictures due to insufficient screen brightness is avoided. However, the scheme of adjusting the backlight size by sensing the ambient light through the light sensing device has a relatively large defect, when the backlight output value corresponding to the ambient light change is relatively large or small, the color and display effect of the picture display are "lost", when the backlight output is adjusted too large, the overall brightness of the picture is relatively high, the display effect is "white", and when the backlight output is adjusted too small, the overall picture is dark, the color effect and the like of the picture are not well represented, and the user experience is poor.

Disclosure of Invention

The embodiment of the application provides an image quality compensation method and display equipment, which are used for effectively compensating the loss of an image quality effect by carrying out certain offset on image quality parameters based on an environment light sensation subsection position, improving the display effect and improving the user experience.

In a first aspect, there is provided a display device comprising:

a display;

the light sensing device is used for acquiring the light intensity of the current environment;

a controller for performing:

acquiring the light intensity of the current environment, and adjusting the backlight output value of image display according to the light intensity;

and determining the light sensing section interval where the light intensity is located, and adjusting image quality parameters according to the deviation value of the light sensing section interval.

In some embodiments, the image quality parameters include brightness, contrast, color saturation, and/or white balance parameters.

In some embodiments, the controller is further configured to perform the adjusting of the brightness, the contrast and/or the color saturation of the image display according to the deviation value of the light-sensitive segment bit interval by:

calculating the adjusted brightness according to the basic value of the current brightness and the brightness deviation value of the light sensing section bit interval; and/or the presence of a gas in the gas,

calculating an adjusted contrast value according to the basic value of the current contrast and the contrast deviation value of the light sensing section bit interval; and/or the presence of a gas in the gas,

and calculating the adjusted color saturation according to the basic value of the current color saturation and the color saturation deviation value of the light sensing section bit interval.

In some embodiments, the controller is further configured to perform adjusting a white balance parameter of an image display according to the deviation value of the light-sensing segment bit interval by:

and calculating the adjusted white balance parameters according to the basic value of the current white balance parameter and a plurality of deviation values of the white balance parameters of the light sensing section bit interval.

In some embodiments, the controller is further configured to perform the obtaining of the light intensity of the current environment by:

and acquiring the light intensity of the current environment at preset intervals.

In a second aspect, a method for image quality compensation is provided, the method comprising:

In some embodiments, adjusting the brightness, the contrast and/or the color saturation of the image display according to the deviation value of the light sensing segment bit interval specifically includes:

In some embodiments, the adjusting the white balance parameter of the image display according to the deviation value of the light sensing segment bit interval includes:

In some embodiments, the acquiring the light intensity of the current environment specifically includes:

In the above embodiment, the light intensity of the environment can be sensed by the light sensing device, the light intensity is segmented, and each segment interval is provided with the deviation value of the image quality parameter. When the backlight output is adjusted according to the light intensity, the image quality parameters are adjusted according to the deviation value of the section interval where the current light intensity is located, the loss of the image quality effect is compensated, the display effect can be effectively improved, and the user experience is improved.

Drawings

FIG. 1 illustrates a usage scenario of a display device according to some embodiments;

fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in the display device 200 according to some embodiments;

FIG. 5 illustrates a schematic structural diagram of a display according to some embodiments;

FIG. 6 illustrates a light intensity perception diagram according to some embodiments;

a flowchart of a method of image quality compensation according to some embodiments is illustrated in fig. 7.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

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," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that is capable of performing the functionality associated with that element.

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. 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. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.

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 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.

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.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.

In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of a tuner 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.

In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

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, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

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, and other network communication protocol chips or near field communication protocol chips, 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 detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.

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 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

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 the controller comprises 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 (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.

In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of an icon, an operation menu, and a user input instruction display figure. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor is configured to receive an external video signal, and perform at least one of video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal displayed or played on the direct display device 200.

In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.

In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform at least one of noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in the speaker.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc. visual interface elements.

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, or the like).

In some embodiments, the display apparatus 200 further comprises a light sensing device 290, the light sensing device 290 is connected to the controller 250, and the light sensing device 290 can be disposed on the top of the display 260, as shown in fig. 5. The light sensor 290 is disposed on the top of the display 260 and is generally not easily shielded, so as to provide better light sensitivity. As shown in fig. 6, the light sensing device 290 can sense the light irradiation in the environment.

In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are, from top to bottom, an Application (Applications) layer (referred to as an "Application layer"), an Application Framework (Application Framework) layer (referred to as a "Framework layer"), an Android runtime (Android runtime) layer and a system library layer (referred to as a "system runtime library layer"), and a kernel layer.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..

The light sensing device plays an important role in the backlight adjustment process, and the backlight output is effectively regulated and controlled by sensing the change of ambient light, which is a conventional method for controlling the backlight. However, this scheme has a relatively obvious defect that the change of the backlight output caused by the change of the ambient light Lux value may deteriorate the effects of color, white balance, etc. of itself, the too high backlight brightness may cause the white floating phenomenon of the picture to be serious, and the too low backlight brightness may cause the color, contrast, etc. to become unobvious.

In order to solve the above technical problem, an embodiment of the present application provides an image quality compensation method.

As shown in fig. 7, the method specifically includes:

step S701: acquiring the light intensity of the current environment;

in some embodiments, the light intensity of the current environment is measured by the light sensing device, and when the light sensing device senses the light of the ambient light, the light sensing device converts the abstract ambient light intensity into a quantifiable Lux value. Lux is the unit of illumination, the intensity of illumination received at 1 meter from a light source with an intensity of 1 cd.

Step S702: adjusting the backlight output value of image display according to the light intensity;

in some embodiments, the Lux value corresponds to a Pwm (Pulse-Width Modulation) value, and the Pwm value is used as an important criterion for the final backlight output. The principle of the pulse width modulation technique is to control the backlight brightness by controlling the duty ratio of the high level and the low level in a time period. For example: when the backlight value on the user interface of the display equipment is darker, the high level accounts for 5% and the low level accounts for 95% in one period (corresponding to the Pwm value in the software is 5); if the high level accounts for 95% and the low level accounts for 5% in one period (corresponding to the Pwm value of 95 in software), the overall backlight of the display device is high, and the screen is white and bright.

As shown in table 1, table 1 is a mapping relationship table for ambient light and Pwm. Assuming that the ambient light Lux value ranges from 0 to 10000, as the Lux value data is gradually increased, the value of Pwm is also increased until the Pwm output is increased by 100(100 is the maximum value). The corresponding relationship is expressed subjectively that when the backlight (including dynamic backlight) option of the display device keeps unchanged, the backlight output of the display device changes along with the Lux value of the ambient light. After the light intensity of the current environment is obtained, the backlight output value corresponding to the light intensity can be determined, and the image display is adjusted to the backlight output value.

TABLE 1

Ambient light intensity (Lux value)	Backlight output (Pwm)
		0	20
15	21
		40	22
55	23
		70	24
....	...
		5000	80
.......	....
		10000	100

In addition, it can be seen from table 1 that, according to another rule, the change of Pwm is larger in the middle Lux range, and smaller in the two ends Lux range, so that the user can view the display device in the range where the ambient light is very dark or very strong, and there is no need to "adjust" the backlight output of the display device at both ends of the Lux value.

Two characteristics of backlight are regulated and controlled according to the current light intensity: firstly, the control of light sense on backlight when the display equipment runs can generate the defect of picture 'floating white' or insufficient brightness, and certain 'loss' is generated on picture quality; secondly, the change of the ambient light Lux value sensed by the light sensing device in the middle range can cause the Pwm output to generate large change, and the change amplitude is relatively small when the Lux value is large or small.

Based on the two characteristics, the method for segmenting the Lux value of the ambient light is adopted, and the brightness, the contrast, the color saturation and the white balance value of the display characteristics of the changed Pwm in each segment are correspondingly shifted within a certain range, so that the loss of the image quality is reduced, and the image quality display effect is improved.

In some embodiments, as shown in table 2, the Lux value of the ambient light that can be sensed by the light sensing device is divided into 8 segment intervals, where 0, L0, L1, L2, L3L 4, L5, L6, and L7 are boundary values of 8 intervals, and the size of these 8 values satisfies the relationship of L7 > L6 > L5 > L4 > L3 > L2 > L1 > L0 > 0.

TABLE 2

Step S703: determining a light sensing section interval where the light intensity is located;

in some embodiments, the light intensity may be used to determine the light sensing segment bit interval. For example, if the current light intensity is in the range of L2-L3, the light sensing segment bit interval in which the current light intensity is located is Level 3.

Step S704: adjusting the image quality parameters according to the deviation value of the light sensing segment bit interval.

In some embodiments, step S702 and step S704 may be performed simultaneously or sequentially.

In some embodiments, as shown in table 3, table 3 represents an offset shift of the brightness, the contrast, and the color saturation relative to the current basic value in 8 light sensing sections, and the shift data range is between-20 and 20, that is, in the case that the light sensing section bit section is determined, the brightness, the contrast, and the color saturation are subjected to an addition and subtraction operation based on the current basic data.

For example: the base value of the current brightness is Bri _ base, and when the light sensing section bit interval where the light intensity is detected is Level3, the adjusted brightness is Bri _ after ═ Bri _ base + Bri _ shift 3.

The base value of the current contrast is Con _ base, and when it is detected that the light intensity is in the light sensing segment bit interval of Level1, the adjusted contrast is Con _ after ═ Con _ base + Con _ shift 1.

The base value of the current color saturation is Sat _ base, and when it is detected that the light intensity of the light sensing segment is Level4, the adjusted color saturation Sat _ after is Sat _ base + Sat _ shift 4.

TABLE 3

In some embodiments, as shown in table 4, table 4 represents a deviation value shift of a white balance value relative to a current basic value in 8 light sensation intervals, and the shift data range is-50 to 50, it should be specifically noted that white balance parameters also have 20 levels, and a value corresponds to a value below each level (white balance is a curve composed of data of 20 levels), so that deviation calculation needs to be performed on 20 levels respectively after a light sensation value interval is determined.

For example: the current white balance parameter is a curve composed of base values Gain _ base0, Gain _ base1, Gain _ base2, journal, Gain _ base17, Gain _ base18, and Gain _ base 9, and when the light segment bit interval in which the light intensity is detected is Level2, Gain _ after0 is Gain _ base0+ Gain shift20, Gain _ after1 is Gain _ base1+ Gain shift21, Gain _ after2 is Gain _ base2+ Gain shift22, journal, Gain _ after17 is Gain _ base17+ Gain 217, Gain _ after18 is Gain _ base18+ Gain shift, Gain _ after219, and base values Gain _ after219, 17.

TABLE 4

In some embodiments, the light intensity of the current environment is acquired once at intervals of a preset time, and the backlight output value, the brightness, the contrast, the color saturation, the white balance parameter, and the like are adjusted according to the light intensity of the current environment.

In other embodiments, the light intensity of the current environment is obtained in real time, and the backlight output value, brightness, contrast, color saturation, white balance parameters, and the like are adjusted according to the light intensity of the current environment.

In the embodiment of the application, when the Lux value of the ambient light changes, besides the backlight output of the display device needs to be controlled, if the Lux value of the ambient light crosses the light sensing segment bit interval, basic data shift needs to be performed on brightness, contrast, color saturation and white balance data.

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 the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising:

a display;

a controller for performing:

2. The display device according to claim 1, wherein the picture quality parameters comprise brightness, contrast, color saturation and/or white balance parameters.

3. The apparatus as claimed in claim 2, wherein the controller is further configured to perform the adjusting of the brightness, the contrast and/or the color saturation of the image display according to the deviation value of the light-sensing segment bit interval by:

4. The apparatus as claimed in claim 2, wherein the controller is further configured to perform the adjusting of the white balance parameter of the image display according to the deviation value of the light sensing segment bit interval by:

5. The display device of claim 1, wherein the controller is further configured to perform the obtaining of the light intensity of the current environment by:

6. An image quality compensation method, the method comprising:

7. The method according to claim 6, wherein the image quality parameters comprise brightness, contrast, color saturation and/or white balance parameters.

8. The method as claimed in claim 6, wherein adjusting the brightness, contrast and/or color saturation of the image display according to the deviation value of the photosensitive segment bit interval comprises:

9. The method as claimed in claim 6, wherein the adjusting the white balance parameter of the image display according to the deviation value of the light sensing segment bit interval by the controller comprises:

10. The method of claim 6, wherein the obtaining the light intensity of the current environment specifically comprises: