CN107680541A - A kind of method and device for reducing liquid crystal display power consumption - Google Patents
A kind of method and device for reducing liquid crystal display power consumption Download PDFInfo
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- CN107680541A CN107680541A CN201711041435.0A CN201711041435A CN107680541A CN 107680541 A CN107680541 A CN 107680541A CN 201711041435 A CN201711041435 A CN 201711041435A CN 107680541 A CN107680541 A CN 107680541A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of method and device for reducing liquid crystal display power consumption.This method includes：Obtain pending image；Local contrast enhancing processing is carried out to the pending image；Back light source brightness regulation is carried out to the pending image；Export final image.The embodiment of the present invention has reached further reduction liquid crystal display power consumption and has improved the beneficial effect of the easy problem of dtmf distortion DTMF of image by using above-mentioned technical proposal.
Description
Technical Field
The embodiment of the invention relates to the technical field of liquid crystal display, in particular to a method and a device for reducing power consumption of a liquid crystal display.
Background
In most of the current smart mobile devices, such as mobile phones, tablet computers, etc., TFT-LCD (Thin Film Transistor-Liquid Crystal Display) is mostly used as the Display screen, and with the continuous increase of the screen and the increase of the service time of the smart mobile device, the endurance problem of the smart mobile device becomes non-negligible.
At present, the method for reducing the display power consumption of the TFT-LCD is mainly based on reducing the brightness of a TFT-LCD backlight source, and meanwhile, image enhancement processing is carried out to compensate the display quality of a final image. Because the brightness of the backlight is a part of the largest power consumption in the whole display subsystem, the reduction of the backlight will also affect the image quality to some extent, and the image compensation algorithm mainly includes standard brightness compensation and contrast enhancement algorithm. For TFT-LCD, the final image brightness seen by the user is obtained by combining the backlight brightness and the liquid crystal transmittance, which is proportional to the image pixel, so the current research scheme is to reduce the backlight brightness to a certain multiple, and increase the value of each pixel by a corresponding multiple, so that the display brightness of each pixel remains unchanged when the user feels.
However, the obvious drawback of this method is that each pixel point is treated as an independent individual, and the locality of the image is not considered, so simply increasing the pixel value of the image at the same time will cause distortion of the image, and affect the final display effect. Although the image quality can be maintained within a range acceptable to the human eye by controlling the magnitude of increase in the pixel value of the displayed image, the power consumption can be reduced by increasing the pixel value equally in units of pixel points.
Disclosure of Invention
The invention provides a method and a device for reducing power consumption of a liquid crystal display, which aim to solve the problems of limited capability of reducing the power consumption of the liquid crystal display and easy distortion of images in the prior art.
In a first aspect, an embodiment of the present invention provides a method for reducing power consumption of a liquid crystal display, where the method includes:
acquiring an image to be processed;
carrying out local contrast enhancement processing on the image to be processed;
adjusting the brightness of a backlight source of the image to be processed;
and outputting the final image.
Optionally, before performing backlight brightness adjustment on the image to be processed, the method further includes:
and acquiring the image brightness mean value and the brightness factor.
Optionally, the local contrast enhancement processing includes:
performing space conversion on pixel points of the image to be processed;
adjusting a contrast enhancement factor and the brightness factor by a local brightness mean and a global mean of an image;
and correcting the value of the brightness factor.
Optionally, the backlight brightness adjustment includes:
a backlight adjustment factor is determined.
Optionally, the global mean includes:
the original luminance value at the pixel point and the adjusted new luminance value.
Optionally, the spatial conversion is to convert the pixel point of the image to be processed from an RGB space to a YUV color space.
In a second aspect, an embodiment of the present invention further provides an apparatus for reducing power consumption of a liquid crystal display, where the apparatus includes:
the image to be processed acquisition module is used for acquiring an image to be processed;
the local contrast enhancement processing module is used for carrying out local contrast enhancement processing on the image to be processed;
the backlight source brightness adjusting module is used for adjusting the backlight source brightness of the image to be processed;
and the final image output module is used for outputting a final image.
Optionally, the image brightness mean value and brightness factor obtaining module is configured to obtain the image brightness mean value and the brightness factor before performing backlight brightness adjustment on the image to be processed.
Optionally, the local contrast enhancement processing module includes:
the pixel point space conversion submodule is used for carrying out space conversion on the pixel points of the image to be processed;
the contrast enhancement factor and brightness factor adjusting sub-module is used for adjusting the contrast enhancement factor and the brightness factor through a local brightness mean value and a global mean value of the image;
and the brightness factor correction submodule is used for correcting the value of the brightness factor.
Optionally, the backlight brightness adjusting module includes:
and the backlight adjusting coefficient determining submodule is used for determining the backlight adjusting coefficient.
Optionally, the global mean includes:
the original luminance value at the pixel point and the adjusted new luminance value.
Optionally, the pixel point space conversion submodule is specifically configured to:
and converting the pixel point of the image to be processed from the RGB space to the YUV color space.
According to the method and the device for reducing the power consumption of the liquid crystal display, the image to be processed is obtained, local contrast enhancement processing and backlight source brightness adjustment are carried out on the obtained image to be processed, and finally an ideal image is output. By adopting the technical scheme, the embodiment of the invention carries out contrast enhancement processing on the image to be processed in different areas, and adjusts the backlight adjusting coefficient according to the average brightness of the local image, thereby further reducing the power consumption of the liquid crystal display and improving the condition of easy distortion of the image.
Drawings
FIG. 1 is a flowchart illustrating a method for reducing power consumption of an LCD according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for reducing power consumption of a liquid crystal display according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for reducing power consumption of an LCD according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for reducing power consumption of a liquid crystal display according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before embodiments of the present invention are given, a brief description will be given of related knowledge of a liquid crystal display image. When the TFT-LCD displays images, a backlight source is required to emit light, the light penetrates through liquid crystal molecules and finally enters human eyes, and then people can observe the images displayed by the TFT-LCD. Therefore, the main factors affecting the final display image are the intensity of the backlight and the light transmittance of the liquid crystal molecules. The light transmittance of the liquid crystal molecules is in direct proportion to the pixel value of the image, the pixel value corresponds to the pixel driving voltage, the pixel driving voltage can control the light transmittance of the liquid crystal corresponding to the pixel point, and the intensity of the backlight is influenced by the magnitude of the backlight driving voltage. Therefore, when reducing the power consumption of the lcd, the backlight intensity is mainly reduced, but the reduced backlight intensity affects the final display quality of the image, and therefore is usually compensated by the image enhancement algorithm. The technical scheme of the invention aims at reducing the power consumption of the TFT-LCD when the TFT-LCD displays the image by aiming at the low-power consumption algorithm of local contrast brightness enhancement and backlight reduction of the image brightness component.
Example one
Fig. 1 is a flowchart of a method for reducing power consumption of a liquid crystal display according to an embodiment of the invention. The embodiment of the invention can be suitable for scenes using the liquid crystal display and needing to reduce the power consumption of the liquid crystal display, and the method can be executed by a device for reducing the power consumption of the liquid crystal display, and the device can be realized in a software/hardware mode. As shown in fig. 1, the method includes:
and S110, acquiring an image to be processed.
For example, the image to be processed in this embodiment may specifically be an image picture that needs to be displayed in the TFT-LCD.
And S120, performing local contrast enhancement processing on the image to be processed.
For example, the contrast enhancement processing generally refers to increasing the value of the pixel points in the image by a certain factor, so that the display brightness of each pixel point does not change obviously to the human eye after the backlight brightness is reduced. The local contrast enhancement processing is to perform region division on an image to be processed, divide the image to be processed into small blocks, and perform contrast enhancement processing on pixel points of a certain image region respectively.
And S130, performing backlight brightness adjustment on the image to be processed.
For example, in the case of reducing the power consumption of the lcd, the backlight brightness adjustment generally means that the brightness of the backlight is reduced by a certain multiple. In the embodiment of the present invention, the backlight brightness adjustment is also performed in different regions, and the regions are consistent with the regions subjected to the local contrast enhancement processing, and the regions subjected to the local contrast enhancement correspond to different backlight brightness adjustment coefficients, respectively.
And S140, outputting the final image.
Illustratively, after the image local contrast enhancement processing and the backlight processing, the final image is output, and the human eye views the picture through the display. It should be noted that there is a relationship between the local contrast enhancement processing and the backlight brightness adjustment, and the coefficient of the backlight brightness adjustment depends on the processing result of the local contrast enhancement, that is, the adjustment of the backlight brightness is based on the image content adjustment.
Optionally, the backlight brightness adjustment comprises determining a backlight adjustment factor.
Illustratively, the backlight adjustment coefficient is influenced by the image brightness mean value and the brightness factor, the brightness factor is different in different parts, the image brightness mean value is also different, and the corresponding backlight adjustment coefficient is also adaptively adjusted. In the area with large image brightness mean value, the backlight coefficient needs to be properly adjusted to be small, so that the image is ensured not to be distorted, and the power consumption of the liquid crystal display is further reduced.
In the method for reducing power consumption of the liquid crystal display provided by this embodiment, the image to be processed is obtained, the local contrast enhancement processing and the backlight brightness adjustment are performed on the image to be processed, and finally, the final image is output. By adopting the technical scheme, the embodiment of the invention solves the problems of limited capability of reducing the power consumption of the liquid crystal display and easy distortion of images in the prior art.
Example two
Fig. 2 is a schematic flow chart of another method for reducing power consumption of a liquid crystal display according to an embodiment of the invention. The method comprises the following steps:
and S210, acquiring an image to be processed.
S220, local contrast enhancement processing is carried out on the image to be processed.
And S230, performing backlight brightness adjustment on the image to be processed.
And S240, acquiring the image brightness mean value and the brightness factor.
For example, the brightness mean value of the image obtained in this step refers to the local brightness mean value of the image after the local contrast enhancement processing, and the brightness factor refers to the multiple of the local contrast enhancement.
And S250, outputting the final image.
In the method for reducing power consumption of the liquid crystal display provided by this embodiment, the to-be-processed image is obtained, the local contrast enhancement processing is performed on the to-be-processed image, the backlight brightness adjustment is performed on the to-be-processed image after the image brightness mean value and the brightness factor are obtained, and the final image is output. By adopting the technical scheme, the embodiment of the invention solves the problems of limited capability of reducing the power consumption of the liquid crystal display and easy distortion of images in the prior art.
EXAMPLE III
Fig. 3 is a flowchart illustrating a method for reducing power consumption of a liquid crystal display according to another embodiment of the present invention. The method comprises the following steps:
and S310, acquiring an image to be processed.
S320, performing space conversion on the pixel points of the image to be processed; adjusting a contrast enhancement factor and a brightness factor through a local brightness mean value and a global mean value of the image; and correcting the value of the brightness factor.
Optionally, the global mean includes:
the original luminance value at the pixel point and the adjusted new luminance value.
Optionally, the space conversion is to convert the pixel point of the image to be processed from an RGB space to a YUV color space.
It should be noted that, the human eye can observe a color image through the TFT-LCD, the color is usually described by three relatively independent attributes, and three independent variables are combined to form a space coordinate, i.e. a color space. Colors can be described by different angles, with different attributes in groups of three, resulting in different color spaces. Color spaces can be divided into two main categories according to basic structure: a primary color space and a color-and-luminance-separated color space, of which RGB color space and YUV color space are typical representatives, respectively.
For example, the spatial conversion refers to performing an operation on a value of a pixel corresponding to an image, and converting information of the pixel from one color space to another color space. The following description will be given by taking an example of converting the pixel point of the image to be processed from the RGB space to the YUV color space, where a specific conversion formula is shown in formula (1):
local luminance mean through imageAnd adjusting the contrast enhancement factor C and the brightness factor A by the global mean, wherein a specific enhancement formula is shown as a formula 2:
wherein,is the luminance mean of the local block, and Y (x, Y) represents the original luminance value at the (x, Y) pixel point, Y' (x, Y) is the new luminance value adjusted at the (x, Y) pixel point, C is the contrast enhancement factor, and a is the luminance factor. The value of the contrast enhancement factor is generally greater than 1.
The selection of the contrast enhancement factor C and the brightness enhancement factor a needs to be dynamically adjusted according to the content of the image. The average value of brightness can be analyzed by the formula (2)For a larger image, most of the images contain more high-brightness pixel points, and at this time, if the contrast enhancement factor C is too large, the values of too many pixel points overflow after the contrast enhancement processing, thereby causing image distortion. To this end, the embodiment of the invention proposes that the contrast enhancement factor C is adjusted according to the brightness mean value of the image when the brightness mean valueThe larger the value of the contrast enhancement factor C should be. For this purpose, the root mean square of the luminance mean is introduced as an argument for the value of the contrast enhancement factor C. The specific defined relation is shown in formula (3):
for example, if the initial value of the luminance factor a is equal to the contrast enhancement factor C, the value is the standard luminance enhancement, and this situation may cause too many pixels to overflow, so that a feedback principle needs to be introduced to correct the luminance factor a, and a specific correction formula is shown in formula 4:
and k is a correction parameter, and the correction parameter k is selected mainly according to the principle of distortion degree of the image. Assuming that the acceptable distortion range of human eyes is less than 2%, after obtaining a suitable correction coefficient and calculating the value of each pixel point, each pixel point of the image needs to be finally processed, that is, the RGB value of each pixel point of a new image is obtained according to the adjusted new brightness component and the image to be processed.
The final processing is to keep the original RGB component ratio unchanged, and the specific processing mode is as shown in formula (5):
in other words, T ═ Y'/Y is a multiple of the increase in luminance of each pixel point, and it is also necessary to ensure that the three component values of RGB obtained are between [0,255 ].
S330, backlight brightness adjustment is conducted on the image to be processed.
Illustratively, the backlight brightness adjustment is to adjust the backlight brightness of the local image to a certain multiple, which is a backlight adjustment coefficient and is represented by β, the backlight adjustment coefficient β is inversely proportional to the average value of the image brightness, meanwhile, the existence of the brightness factor a enhances the final average brightness of the image, the value of the backlight adjustment coefficient β is also modified, and the calculation formula of the finally determined backlight adjustment coefficient β is as shown in formula (6):
wherein gamma is a correction coefficient, and the empirical value range is between-0.2 and 0.3.
And S340, outputting the final image.
In the method for reducing power consumption of the liquid crystal display provided by this embodiment, the to-be-processed image is obtained, the pixel points of the to-be-processed image are subjected to spatial conversion, the contrast enhancement factor and the brightness factor are adjusted according to the local brightness mean value and the global mean value of the image, the value of the brightness factor is corrected, the backlight brightness of the to-be-processed image is adjusted, and the final image is output. The embodiment of the invention solves the problems of limited capability of reducing the power consumption of the liquid crystal display and easy distortion of images in the prior art.
Example four
Fig. 4 is a schematic structural diagram of an apparatus for reducing power consumption of a liquid crystal display according to an embodiment of the present invention, where the apparatus can be implemented by software and/or hardware. As shown in fig. 4, the apparatus may include:
an image to be processed obtaining module 41, configured to obtain an image to be processed;
a local contrast enhancement image processing module 42, configured to perform local contrast enhancement processing on the image to be processed;
a backlight brightness adjusting module 43, configured to perform backlight brightness adjustment on the image to be processed;
and an output final image module 44 for outputting a final image.
Optionally, the method further includes:
and an image brightness mean value and brightness factor module 45, configured to obtain an image brightness mean value and a brightness factor before performing backlight brightness adjustment on the image to be processed.
Optionally, the local contrast enhancement processing module 42 includes:
a pixel point space conversion module 46, configured to perform space conversion on pixel points of the image to be processed;
a contrast enhancement factor and brightness factor adjusting module 47, configured to adjust a contrast enhancement factor and a brightness factor according to a local brightness mean and a global mean of the image;
and a brightness factor correction module 48, configured to correct the value of the brightness factor.
Optionally, the backlight brightness adjusting module includes:
and a backlight adjustment coefficient determining sub-module 49 for determining the backlight adjustment coefficient.
Optionally, the global mean includes:
the original luminance value at the pixel point and the adjusted new luminance value.
Optionally, the pixel point space converting module 46 is configured to convert the pixel point of the image to be processed from an RGB space to a YUV color space.
The device for reducing the power consumption of the liquid crystal display provided in the embodiment performs local contrast enhancement processing on an image, dynamically adjusts the brightness of the backlight source based on the content of the image, and selects a smaller backlight adjustment coefficient in an area with a higher average brightness value, so that the condition that the image is easy to distort is improved, and the power consumption of the liquid crystal display can be further reduced.
The device can execute the method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For details not described in detail in this embodiment, reference may be made to the methods provided in all the foregoing embodiments of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for reducing power consumption of a liquid crystal display, comprising:
acquiring an image to be processed;
carrying out local contrast enhancement processing on the image to be processed;
adjusting the brightness of a backlight source of the image to be processed;
and outputting the final image.
2. The method according to claim 1, further comprising, before performing backlight brightness adjustment on the image to be processed:
and acquiring the image brightness mean value and the brightness factor.
3. The method of claim 1, wherein the local contrast enhancement processing comprises:
performing space conversion on pixel points of the image to be processed;
adjusting a contrast enhancement factor and the brightness factor by a local brightness mean and a global mean of an image;
and correcting the value of the brightness factor.
4. The method of claim 1, wherein the backlight brightness adjustment comprises:
a backlight adjustment factor is determined.
5. The method of claim 3, wherein the global mean comprises:
the original luminance value at the pixel point and the adjusted new luminance value.
6. The method of claim 3, wherein the spatial conversion is converting pixel points of the image to be processed from an RGB space to a YUV color space.
7. An apparatus for reducing power consumption of a liquid crystal display, comprising:
the image to be processed acquisition module is used for acquiring an image to be processed;
the local contrast enhancement processing module is used for carrying out local contrast enhancement processing on the image to be processed;
the backlight source brightness adjusting module is used for adjusting the backlight source brightness of the image to be processed;
and the final image output module is used for outputting a final image.
8. The apparatus of claim 7, further comprising:
and the image brightness mean value and brightness factor acquisition module is used for acquiring the image brightness mean value and the brightness factor before the backlight brightness adjustment is carried out on the image to be processed.
9. The apparatus of claim 7, wherein the local contrast enhancement processing module comprises:
the pixel point space conversion submodule is used for carrying out space conversion on the pixel points of the image to be processed;
the contrast enhancement factor and brightness factor adjusting sub-module is used for adjusting the contrast enhancement factor and the brightness factor through a local brightness mean value and a global mean value of the image;
and the brightness factor correction submodule is used for correcting the value of the brightness factor.
10. The apparatus of claim 7, wherein the backlight brightness adjustment module comprises:
and the backlight adjusting coefficient determining submodule is used for determining the backlight adjusting coefficient.
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| CN108447037A (en) * | 2018-03-26 | 2018-08-24 | 上海顺久电子科技有限公司 | A kind of method and apparatus of dynamic range of images enhancing |
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| CN109191394A (en) * | 2018-08-17 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of method, apparatus of image enhancement, readable storage medium storing program for executing and computer equipment |
| CN109658872A (en) * | 2018-12-11 | 2019-04-19 | 惠科股份有限公司 | Driving method and driving device of display module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108446089A (en) * | 2018-03-22 | 2018-08-24 | 京东方科技集团股份有限公司 | Display methods, device and the display of data |
| WO2019179512A1 (en) * | 2018-03-22 | 2019-09-26 | 京东方科技集团股份有限公司 | Display method, display device, and display |
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| CN108447037A (en) * | 2018-03-26 | 2018-08-24 | 上海顺久电子科技有限公司 | A kind of method and apparatus of dynamic range of images enhancing |
| CN108447037B (en) * | 2018-03-26 | 2022-02-18 | 上海顺久电子科技有限公司 | Method and device for enhancing dynamic range of image |
| CN109191394A (en) * | 2018-08-17 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of method, apparatus of image enhancement, readable storage medium storing program for executing and computer equipment |
| CN109658872A (en) * | 2018-12-11 | 2019-04-19 | 惠科股份有限公司 | Driving method and driving device of display module |
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