CN114464144A - Brightness adjusting display method, brightness adjusting display system and liquid crystal display device - Google Patents
Brightness adjusting display method, brightness adjusting display system and liquid crystal display device Download PDFInfo
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The embodiment of the invention provides a brightness adjustment display method, a brightness adjustment display system and a liquid crystal display device, wherein the brightness adjustment display method comprises the following steps: outputting a duty ratio signal to a backlight driving module according to the manual gear adjusting signal and the ambient light induction signal; searching a duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear; and displaying the actual display brightness adjusting control on a screen according to the actual display brightness gear. According to the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device provided by the embodiment of the invention, if the display device is in the automatic adjustment mode, the actual display brightness gear can be determined by watching the actual display brightness adjustment control displayed on the screen, so that a user can obtain better interactive experience.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a brightness adjustment display method, a brightness adjustment display system, and a liquid crystal display device.
Background
Since the lcd device has many advantages of lightness, thinness, energy saving, no radiation, etc., it is widely used in electronic devices such as televisions, personal computers, tablet computers, Personal Digital Assistants (PDAs), mobile phones, digital cameras, etc. Moreover, with the development of the times, the use of the notebook computer is more and more extensive, and the user experience of the notebook computer is more and more important. The brightness of the screen of the notebook computer can be adjusted by using the keyboard F5/F6, and meanwhile, a brightness bar corresponding to the input gear of the keyboard appears on the screen, so that a user obtains better experience.
In order to automatically adjust the backlight brightness according to the ambient light brightness, the liquid crystal display device is set in an automatic adjustment mode, and a light sensor can be added into the notebook computer. When the automatic adjusting mode is started, the light sensation sensor detects the brightness of the ambient environment, if the ambient environment is dark, the backlight brightness of the notebook computer is automatically reduced, the input gear of the adjusting keyboard and the brightness bar on the screen are not matched with the actual backlight brightness, so that the actual display brightness cannot be displayed by the brightness bar on the screen, and the user experience is reduced.
Disclosure of Invention
In view of this, the present invention provides a brightness adjustment display system, which is used for displaying the actual display brightness by the actual display brightness adjustment control on the screen, so as to improve the user experience.
Specifically, an embodiment of the present invention provides a brightness adjustment display method, including: outputting a duty ratio signal to a backlight driving module according to the manual gear adjusting signal and the ambient light induction signal; searching a duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear; and displaying the actual display brightness adjusting control on a screen according to the actual display brightness gear.
Further, the brightness adjustment display method further includes: and establishing the duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module.
Further, the method for searching the duty ratio gear comparison table to determine the actual display brightness gear comprises the following steps: and in the normal display mode, searching a wide-view-angle duty ratio gear comparison table to determine the actual display brightness gear.
Further, the method for searching the wide view angle duty ratio gear comparison table further comprises the following steps: and establishing the wide-view-angle duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module in the normal display mode.
Further, the method for searching the duty ratio gear comparison table to determine the actual display brightness gear comprises the following steps: and in the peep-proof display mode, searching a narrow visual angle duty ratio gear comparison table to determine the actual display brightness gear.
Further, the method for searching the narrow view angle duty ratio gear comparison table further comprises the following steps: and establishing the narrow visual angle duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode.
Further, the brightness adjustment display method further includes: and displaying a manual adjusting control (520) on a screen according to the manual adjusting gear signal.
Further, when the manual gear adjusting signal of the maximum gear is continuously received, a prompt box pops up on a screen to prompt a user that the current brightness is the optimal brightness of the peep-proof display mode, and if the brightness needs to be continuously improved, the brightness is recommended to be switched to a normal display mode or the ambient light brightness is improved.
The embodiment of the invention also provides a brightness adjusting display system which comprises a first control module, a storage module, a processing module and a screen display module. When the first control module is in a normal display mode, if the first control module is in an automatic adjustment mode, a duty ratio signal is output to the backlight driving module according to a manual adjustment gear signal and an ambient light induction signal, a wide-view-angle duty ratio gear comparison table is searched according to the duty ratio signal to determine an actual display brightness gear, and the actual display brightness gear is output. The storage module is connected with the first control module and receives the actual display brightness gear sent by the first control module. The processing module is connected with the storage module, and is used for calling the actual display brightness gear stored by the storage module and outputting the actual display brightness gear. And the screen display module is connected with the processing module, and displays an actual display brightness adjusting control on a screen according to the actual display brightness gear sent by the processing module in a normal display mode.
Further, the processing module is further connected to the light sensing module and the first control module, respectively, and is configured to receive an ambient light sensing signal detected by the light sensing module and send the ambient light sensing signal to the first control module.
Further, the manual backlight adjusting module is a keyboard input module.
Furthermore, the brightness adjusting display system also comprises a second control module, a time sequence controller and a display card. And when the second control module is in the peep-proof display mode, outputting a duty ratio signal to the backlight driving module according to the manual regulating gear signal and the ambient light induction signal, searching a narrow visual angle duty ratio gear comparison table according to the duty ratio signal to determine the actual display brightness gear, and outputting the actual display brightness gear. And the time schedule controller is connected with the second control module, receives the actual display brightness gear sent by the second control module and sends the actual display brightness gear. The display card is respectively connected with the time sequence controller and the screen display module, receives the actual display brightness gear sent by the time sequence controller and sends the actual display brightness gear to the screen display module. And when the screen display module is in a peep-proof display mode, the screen display module displays an actual display brightness adjusting control on the screen according to the actual display brightness gear sent by the display card.
Furthermore, the time schedule controller is also connected with a manual adjustment backlight module, receives the manual adjustment gear signal output by the manual adjustment backlight module, and sends the manual adjustment gear signal to the second control module.
Further, the screen display module displays a manual adjusting control on a screen according to the manual adjusting gear signal.
Further, when the second control module continuously receives the manual gear adjusting signal of the maximum gear, the screen display module pops up a prompt box on a screen to prompt a user that the current brightness is the optimal brightness of the peep-proof display mode, and if the brightness needs to be continuously improved, the normal display mode is recommended to be switched to, or the ambient light brightness is improved.
The embodiment of the invention also provides a liquid crystal display device which comprises the brightness adjusting display system.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device, if the liquid crystal display device is in the automatic adjustment mode, the actual display brightness gear can be determined through the actual display brightness adjustment control displayed by the viewing screen, so that a user can obtain better interactive experience.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a brightness adjustment display method according to an embodiment of the invention.
Fig. 2 is a circuit diagram of a brightness adjusting system according to an embodiment of the invention.
Fig. 3 is a flowchart illustrating an implementation of a brightness adjustment system according to an embodiment of the invention.
Fig. 4 is a circuit diagram of a brightness adjusting system according to an embodiment of the invention.
Fig. 5 is a circuit diagram of a brightness adjusting system according to an embodiment of the invention.
Fig. 6 is a flowchart illustrating an implementation of a brightness adjustment system according to an embodiment of the invention.
Fig. 7 is a circuit diagram of a brightness adjusting system according to an embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the intended purpose, the following detailed description will be given of specific embodiments, methods, steps, structures, features and effects of the brightness adjusting display system and the lighting test device according to the present invention with reference to the accompanying drawings and preferred embodiments.
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings. While the invention has been described in connection with specific embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a brightness adjustment display method according to an embodiment of the invention.
As shown in fig. 1, the brightness adjusting method of the present embodiment includes:
and S1, outputting a duty ratio signal to the backlight driving module according to the manual gear adjusting signal and the ambient light sensing signal.
When the backlight module is in the automatic adjustment mode, the duty ratio signal can be output to the backlight driving module according to the manual adjustment gear signal and the ambient light sensing signal. The backlight driving module outputs backlight with corresponding brightness according to the duty ratio signal, wherein the larger the duty ratio is, the larger the brightness of the backlight is. In an embodiment, the manual adjustment gear signal may be provided by the manual adjustment backlight module, and the manual adjustment gear signal may be a default gear signal set by the manual adjustment backlight module, or may be a gear signal generated by the manual adjustment backlight module. In one embodiment, the manual backlight adjustment module may be a keyboard input module, for example, a keyboard input module capable of adjusting brightness in a keyboard of a notebook computer.
And S2, searching a duty ratio gear comparison table according to the duty ratio signal to determine the actual display brightness gear.
The duty cycle signal in the automatic adjustment mode is slightly different from the duty cycle signal in the manual adjustment mode. In the manual shift mode, each shift value of the manual shift signal corresponds to a fixed duty cycle signal, for example, when the manual shift is 10, the duty cycle signal may be 100%, when the manual shift is 9, the duty cycle signal may be 76.6%, and so on. However, when the automatic adjustment mode is used, the output duty ratio is calculated according to the manual adjustment gear signal and the ambient light sensing signal, and the duty ratio signal is not necessarily the same as the duty ratio signal corresponding to the gear value of the manual adjustment gear, so that it is necessary to search the duty ratio gear comparison table according to the duty ratio signal to determine the actual display brightness gear. Meanwhile, different duty ratio gear comparison tables can be formulated according to different display modes so as to adapt to the brightness range output in each display mode, and the current actual display brightness gear can be determined by searching the duty ratio gear comparison tables.
And S3, displaying the actual display brightness adjusting control on the screen according to the actual display brightness gear.
After the actual display brightness gear is determined, the actual display brightness adjusting control can be displayed on the screen according to the actual display brightness gear, and then the user can determine the actual display brightness gear of the current screen more intuitively through the actual display brightness adjusting control displayed on the screen. In an embodiment, when the manual adjustment mode is switched to the automatic adjustment mode, the screen automatically displays an actual display brightness adjustment control, an actual display brightness gear is automatically adjusted along with changes of ambient light, and a user can determine the actual display brightness gear through the actual display brightness adjustment control. In an embodiment, the manual adjustment backlight module may be adjusted to increase or decrease the brightness, and it can be seen that the actual display brightness gear displayed by the actual display brightness adjustment control displayed on the screen is correspondingly increased or decreased, the user may know the actual display brightness gear corresponding to the current brightness, and may adjust the brightness according to a specific requirement of the user, for example, adjust the actual display brightness gear to a gear required by the user, so that the user obtains better interactive experience. In one embodiment, the actual display brightness adjustment control may be a brightness bar or other displayed style.
In one embodiment, a method for searching a duty ratio gear comparison table to determine an actual display brightness gear comprises the following steps: and in the normal display mode, searching a wide-view-angle duty ratio gear comparison table to determine the actual display brightness gear. In one embodiment, the method for searching the wide-view-angle duty ratio gear comparison table further includes: and establishing a wide-view-angle duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module in the normal display mode. In one embodiment, the brightness adjustment display method further includes: and displaying a manual adjusting control on a screen according to the manual adjusting gear signal.
Specifically, in the normal display mode, the wide view angle duty ratio gear comparison table may be looked up to determine the actual display brightness gear. The wide-view-angle duty ratio gear comparison table can be established according to the gear comparison table manually adjusted when the backlight module is in the normal display mode. And in two endpoints of the duty ratio interval, the value of the first endpoint can be the duty ratio corresponding to the same gear of the gear comparison table when the backlight module is manually adjusted in the normal display mode, and the value of the second endpoint can be the duty ratio corresponding to the next gear of the gear comparison table when the backlight module is manually adjusted in the normal display mode. For example, if the manual adjustment backlight module is in the gear comparison table in the normal display mode, when the manual adjustment gear signal is 10, the duty ratio signal is 100%, when the manual adjustment gear signal is 9, the duty ratio signal is 76.6%, the 10 th gear of the established wide-view-angle duty ratio gear comparison table may correspond to the duty ratio interval (76.6, 100 ]).however, the invention is not limited to establishing the wide-view-angle duty ratio gear comparison table only in this way, that is, the appropriate duty ratio interval may be set in other ways, such as automatically or manually, without depending on the gear comparison table of the manual adjustment backlight module, so as to enable the user to obtain better interactive experience. And the actual display brightness adjusting control is correspondingly adjusted to display the actual display brightness gear. Therefore, the user can clearly know the input and output conditions of brightness adjustment, the brightness can be adjusted according to the requirement, and good human-computer interaction experience is obtained.
In one embodiment, a method for searching a duty ratio gear comparison table to determine an actual display brightness gear comprises the following steps: and in the peep-proof display mode, searching a narrow visual angle duty ratio gear comparison table to determine the actual display brightness gear. In one embodiment, the method for searching the narrow view angle duty ratio gear comparison table further includes: and establishing a narrow visual angle duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode. In one embodiment, the brightness adjustment display method further includes: and displaying a manual adjusting control on a screen according to the manual adjusting gear signal. In one embodiment, when the manual gear adjustment signal of the maximum gear is continuously received, a prompt box pops up on the screen to prompt the user that the current brightness is the optimal brightness of the peep-proof display mode, and if the brightness needs to be continuously increased, the user is recommended to switch to the normal display mode or increase the ambient light brightness.
Specifically, in the privacy display mode, the duty ratio shift comparison table with the narrow viewing angle may be searched to determine the actual display brightness shift. The narrow-view-angle duty ratio gear comparison table can be established according to the gear comparison table manually adjusted when the backlight module is in the peep-proof display mode. The duty ratio interval corresponding to each gear of the narrow-view-angle duty ratio gear comparison table is set, in two endpoints of the duty ratio interval, the value of the first endpoint can be the duty ratio corresponding to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode in the same gear, and the value of the second endpoint can be the duty ratio corresponding to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode in the next gear. For example, if the manual adjustment backlight module is in the gear comparison table in the privacy protection display mode, when the manual adjustment gear signal is 10, the duty ratio signal is 84.71%, when the manual adjustment gear signal is 9, the duty ratio signal is 70.06%, the 10 th gear of the established narrow-view-angle duty ratio gear comparison table may correspond to the duty ratio interval (70.06, 84.71) ]. And the actual display brightness adjusting control is correspondingly adjusted to display the actual display brightness gear. Therefore, the user can clearly know the input and output conditions of brightness adjustment, the brightness can be adjusted according to the requirement, and good human-computer interaction experience is obtained. In an embodiment, when the gear value of the manual gear adjustment signal is the maximum gear of 10 gears, since the duty ratio signal corresponding to the actual display brightness gear in the privacy protection display mode is determined according to the manual gear adjustment signal and the ambient light sensing signal, the actual display brightness gear may be 9 gears, so that when the manual gear adjustment signal of 10 gears is continuously received, a prompt box can pop up on the screen to prompt the user that the current brightness is the optimal brightness of the privacy protection display mode, and if the brightness is to be continuously improved, the current display mode is switched to the normal display mode or the ambient light brightness is improved to increase the actual display brightness.
In an embodiment, the actual display brightness adjustment control and the manual adjustment control may be the same control, and the manual adjustment control may be adjusted according to the actual display brightness gear, so that the manual adjustment control displayed on the screen corresponds to the actual display brightness gear, and does not correspond to the manual gear adjustment signal.
According to the brightness adjusting display method provided by the embodiment, during man-machine interaction and in an automatic adjusting mode, the actual display brightness adjusting control corresponding to the actual display brightness displayed on the screen is watched, so that a user can obtain better interaction experience.
Based on the luminance adjustment method of the above embodiment, the following embodiments can be obtained.
Referring to fig. 2 and fig. 3, fig. 2 is a circuit schematic diagram of a brightness adjustment display system according to an embodiment of the invention. Fig. 3 is a flowchart illustrating an implementation of a brightness adjustment system according to an embodiment of the invention. As shown in fig. 2, the brightness adjustment display system includes a first control module 100, a storage module 300, a processing module 400, and a screen display module 500. When the first control module 100 is in the normal display mode, if the first control module is in the automatic adjustment mode, the duty ratio signal is output to the backlight driving module 200 according to the manual adjustment gear signal and the ambient light sensing signal, and the wide-view-angle duty ratio gear comparison table is searched according to the duty ratio signal to determine an actual display luminance gear and output an actual display luminance gear. The storage module 300 is connected to the first control module 100 and receives the actual display brightness level transmitted by the first control module 100. The processing module 400 is connected to the storage module 300, and retrieves the actual display brightness gear stored in the storage module 300 and outputs the actual display brightness gear. The screen display module 500 is connected to the processing module 400, and in the normal display mode, displays the actual display brightness adjustment control 510 on the screen according to the actual display brightness level sent by the processing module 400.
In an embodiment, the processing module 400 is further connected to the light sensing module and the first control module 100, respectively, and receives the ambient light sensing signal detected by the light sensing module, and sends the ambient light sensing signal to the first control module 100.
Specifically, referring to fig. 2 and 3 together, the first control module 100 receives a manual adjustment gear signal, and in an embodiment, the manual adjustment gear signal may be a default gear signal set by the manual adjustment backlight module, or may be a gear signal generated by the manual adjustment backlight module. The first control module 100 also receives an ambient light sensing signal, for example, the first control module 100 may receive the ambient light sensing signal detected by the light sensing module through the processing module 400. If the backlight module is in the automatic adjustment mode, the first control module 100 outputs a duty ratio signal to the backlight driving module 200 according to the manual adjustment gear signal and the collected ambient light sensing signal. The backlight driving module 200 outputs backlight with corresponding brightness according to the duty ratio signal, wherein the larger the duty ratio is, the larger the brightness of the backlight is. In one embodiment, the manual backlight adjustment module may be a keyboard input module, for example, a keyboard input module capable of adjusting brightness in a keyboard of a notebook computer. When the manual adjustment backlight module is triggered, a manual adjustment gear signal is manually input and sent to the first control module 100. The first control module 100 further searches the wide view angle duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear, and outputs the actual display brightness gear to the storage module 300 for storage. The processing module 400 calls the actual display brightness gear stored in the storage module 300 to the screen display module 500. In the normal display mode, the actual display brightness adjustment control 510 is displayed on the screen according to the actual display brightness level sent by the processing module 400. Thus, the user can determine the actual display brightness level by viewing the actual display brightness adjustment control 510 displayed on the screen, so that the user can obtain better interactive experience.
Since the duty ratio signal finally sent to the backlight driving module 200 in the automatic adjustment mode does not necessarily correspond to the duty ratio signal corresponding to the gear value of the manual adjustment gear signal, a duty ratio comparison table needs to be established. The wide-view-angle duty ratio gear comparison table can be established according to the gear comparison table of the manual adjustment backlight module in the normal display mode. And in two endpoints of the duty ratio interval, the value of the first endpoint can be the duty ratio corresponding to the gear comparison table of the manual regulation backlight module in the normal display mode at the same gear, and the value of the second endpoint can be the duty ratio corresponding to the gear comparison table of the manual regulation backlight module in the normal display mode at the next gear. For example, if the manual adjustment backlight module is in the gear comparison table of the normal display mode, when the manual adjustment gear signal is 10, the duty ratio signal is 100%, and when the manual adjustment gear signal is 9, the duty ratio signal is 76.6%, then 10 gears of the established wide-view-angle duty ratio gear comparison table may correspond to the duty ratio interval of (76.6%, 100% ].
Table 1:
in one embodiment, the first control module 100 may be an embedded control chip.
In one embodiment, the storage module 300 may be a FLASH storage module 300.
In one embodiment, the memory module 300 and the processing module 400 are connected by a PCI line.
In one embodiment, the processing module 400 may be a CPU.
In one embodiment, the manual backlight adjustment module may be a keyboard input module, for example, a keyboard input module capable of adjusting brightness in a keyboard of a notebook computer.
In an embodiment, when the first control module 100 is in the normal display mode, if the first control module is in the manual adjustment mode, the duty ratio signal is output to the backlight driving module 200 according to the manual adjustment gear signal, and when the screen display module 500 is in the normal display mode, the actual display brightness adjustment control 510 is displayed on the screen according to the manual adjustment gear signal. Therefore, the brightness adjustment display system of the embodiment can select the automatic adjustment mode or the manual adjustment mode when in the normal display mode, and when in the automatic adjustment mode, the actual display brightness gear can be determined by viewing the actual display brightness adjustment control 510 displayed on the screen, so that the user can obtain better interactive experience.
In one embodiment, the screen display module 500 further displays a manual adjustment control 520 on the screen according to the manual adjustment gear signal.
Specifically, as shown in fig. 4, the screen display module 500 further displays a manual adjustment control 520 on the screen according to the manual gear adjustment signal, so that the manually input gear value can be known more intuitively through the manual adjustment control 520 displayed on the screen. In an embodiment, when the manual adjustment mode is switched to the automatic adjustment mode, the screen display module 500 automatically displays the actual display brightness adjustment control 510 and the manual adjustment control 520 on the screen, and the user may determine the actual display brightness gear through the manual adjustment control 520 and may determine the manual adjustment gear through the actual display brightness adjustment control 510. In one embodiment, the screen display module 500 may increase or decrease the value of the manual input gear displayed by the manual adjustment control 520 displayed on the screen and also increase or decrease the actual display brightness gear displayed by the actual display brightness adjustment control 510 displayed on the screen, as the brightness is increased or decreased by the adjustment input of the manual adjustment backlight module. Therefore, the user can clearly know the input and output conditions of brightness adjustment, the brightness can be adjusted according to the requirement, and good human-computer interaction experience is obtained.
In an embodiment, the actual display brightness adjustment control 510 and the manual adjustment control 520 may be the same control, and the manual adjustment control 520 may be adjusted according to the actual display brightness shift, so that the on-screen display manual adjustment control 520 corresponds to the actual display brightness shift and does not correspond to the manual shift adjustment signal.
It should be noted that the brightness adjustment display system of the present embodiment is suitable for performing human-computer interaction brightness adjustment in the normal display mode, but the invention is not limited thereto, and for example, the brightness adjustment display system of the present embodiment may also be suitable for a display device without a peep-proof display mode, such as a notebook computer.
Referring to fig. 5 and fig. 6 together, fig. 5 is a circuit schematic diagram of a brightness adjustment display system according to an embodiment of the invention. Fig. 6 is a flowchart illustrating an implementation of a brightness adjustment system according to an embodiment of the invention. As shown in fig. 5, the brightness adjustment display system further includes a second control module 700, a timing controller 800, and a display card 900. When in the peep-proof display mode, the second control module 700 outputs a duty ratio signal to the backlight driving module 200 according to the manual gear adjustment signal and the ambient light sensing signal, and searches the narrow viewing angle duty ratio gear comparison table according to the duty ratio signal to determine an actual display luminance gear and output an actual display luminance gear. The timing controller 800 is connected to the second control module 700, receives the actual display luminance steps transmitted by the second control module 700, and transmits the actual display luminance steps. The display card 900 is respectively connected to the timing controller 800 and the screen display module 500, receives the actual display luminance gear transmitted by the timing controller 800, and transmits the actual display luminance gear to the screen display module 500. When the screen display module 500 is in the peep-proof display mode, the actual display brightness adjustment control 510 is displayed on the screen according to the actual display brightness gear sent by the display card 900.
In one embodiment, the timing controller 800 is further connected to the manual adjustment backlight module, receives a manual adjustment gear signal output by the manual adjustment backlight module, and sends the manual adjustment gear signal to the second control module 700.
Specifically, referring to fig. 5 and 6 simultaneously, the second control module 700 receives an ambient light sensing signal, for example, the second control module 700 may receive the ambient light sensing signal detected by the light sensing module. The second control module 700 further receives a manual adjustment gear signal, for example, the second control module 700 receives the manual adjustment gear signal input by the manual adjustment backlight module through the timing controller 800, and in an embodiment, the manual adjustment gear signal may be a default gear signal set by the manual adjustment backlight module or may be a gear signal generated by the manual adjustment backlight module. If the backlight driving module 200 is in the auto-adjustment mode, the second control module 700 outputs a duty ratio signal to the backlight driving module 200 according to the manual adjustment gear signal and the ambient light sensing signal. The backlight driving module 200 outputs backlight with corresponding brightness according to the duty ratio signal, wherein the larger the duty ratio is, the larger the brightness of the backlight is. In one embodiment, the manual backlight adjustment module may be a keyboard input module, for example, a keyboard input module capable of adjusting brightness in a keyboard of a notebook computer. When the manual adjustment backlight module is triggered, a manual adjustment gear signal is manually input and sent to the second control module 700. The second control module 700 also looks up a narrow view duty ratio gear comparison table according to the duty ratio signal to determine an actual display luminance gear, and writes the actual display luminance gear into a register of the timing controller 800. The timing controller 800 is configured to provide a corresponding timing signal for outputting an image signal in the peep-proof display mode, receive an actual display brightness level transmitted by the second control module 700, and transmit the actual display brightness level to the display card 900. The display card 900 receives the actual display brightness level transmitted by the timing controller 800 and transmits the actual display brightness level to the screen display module 500. When the screen display module 500 is in the peep-proof display mode, the actual display brightness adjustment control 510 is displayed on the screen according to the actual display brightness gear sent by the display card 900. Thus, the user can determine the actual display brightness level by viewing the actual display brightness adjustment control 510 displayed on the screen, so that the user can obtain better interactive experience.
Since the duty ratio signal finally sent to the backlight driving module 200 in the automatic adjustment mode does not necessarily correspond to the duty ratio signal corresponding to the gear value of the manual adjustment gear signal in the peep-proof display mode, a duty ratio comparison table needs to be established. The duty ratio gear comparison table can be established according to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode. And in two endpoints of the duty cycle interval, the value of the first endpoint can be the duty cycle corresponding to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode at the same gear, and the value of the second endpoint can be the duty cycle corresponding to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode at the next gear. For example, the lower table 2 is a narrow viewing angle duty ratio gear comparison table established according to a gear comparison table for manually adjusting the backlight module in the privacy display mode. However, the invention does not limit the establishment of the duty ratio gear comparison table, and the proper duty ratio interval can be selected in other ways or set automatically or manually according to the gear comparison table of the backlight module in the peep-proof display mode without manual adjustment, so that the user can obtain better interactive experience.
Table 2:
in one embodiment, the second control module 700 may be an MCU module.
In one embodiment, the second control module 700 is connected to the timing controller 800 via an I2C bus.
In one embodiment, the timing controller 800 is connected to the display card 900 through an AUX line.
In one embodiment, the manual backlight adjustment module may be a keyboard input module, for example, a keyboard input module capable of adjusting brightness in a keyboard of a notebook computer.
In an embodiment, when the second control module 700 continuously receives the manual gear adjustment signal of the maximum gear, the screen display module 500 pops up a prompt box on the screen to prompt the user that the current brightness is the optimal brightness of the privacy-protection display mode, and if the brightness needs to be continuously increased, the switching to the normal display mode or the increase of the ambient light brightness is recommended. For example, the maximum gear position value of the manual gear position adjusting signal is 10 gear, and since the duty ratio signal corresponding to the actual display brightness gear position in the privacy protection display mode is determined according to the manual gear position adjusting signal and the ambient light sensing signal, the actual display brightness gear position may be 9 gear, so that when the second control module 700 continuously receives the 10 gear manual gear position adjusting signal, the screen display module 500 may pop up a prompt box on the screen to prompt the user that the current brightness is the optimal brightness of the privacy protection display mode, and if the brightness is to be continuously increased, the screen display module is suggested to be switched to the normal display mode or the ambient light brightness is increased to increase the actual display brightness.
It should be noted that, the brightness adjustment display system of the embodiment performs human-computer interaction brightness adjustment in the peep-proof display mode, and is only suitable for the automatic adjustment mode but not suitable for the manual adjustment mode.
In one embodiment, the screen display module 500 further displays a manual adjustment control 520 on the screen according to the manual adjustment gear signal.
Specifically, as shown in fig. 7, the screen display module 500 further displays a manual adjustment control 520 on the screen according to the manual gear adjustment signal, so that the manually input gear value can be known more intuitively through the manual adjustment control 520 displayed on the screen. In an embodiment, when the manual adjustment mode is switched to the automatic adjustment mode, the screen display module 500 automatically displays the actual display brightness adjustment control 510 and the manual adjustment control 520 on the screen, and the user may determine the actual display brightness gear through the manual adjustment control 520 and may determine the manual adjustment gear through the actual display brightness adjustment control 510. In one embodiment, the screen display module 500 may increase or decrease the value of the manual input gear displayed by the manual adjustment control 520 displayed on the screen and also increase or decrease the actual display brightness gear displayed by the actual display brightness adjustment control 510 displayed on the screen, as the brightness is increased or decreased by the adjustment input of the manual adjustment backlight module. Therefore, the user can clearly know the input and output conditions of brightness adjustment, the brightness can be adjusted according to the requirement, and good human-computer interaction experience is obtained.
In an embodiment, the actual display brightness adjustment control 510 and the manual adjustment control 520 may be the same control, and the manual adjustment control 520 may be adjusted according to the actual display brightness shift, so that the on-screen display manual adjustment control 520 corresponds to the actual display brightness shift and does not correspond to the manual shift adjustment signal.
Based on the same inventive concept, the embodiment of the invention also provides a liquid crystal display device, which comprises the brightness adjusting display system. The implementation of the liquid crystal display device can refer to the embodiment of the brightness adjusting display system, and repeated details are not repeated.
In an embodiment, the liquid crystal display device may be a notebook computer, and the manual adjustment backlight module is a keyboard input module in the notebook computer for generating a manual adjustment gear signal.
According to the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device, when the liquid crystal display device is in the automatic adjustment mode, the actual display brightness gear can be determined by watching the actual display brightness adjustment control displayed on the screen, so that a user can obtain better interactive experience.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A brightness adjustment display method, comprising:
outputting a duty ratio signal to a backlight driving module (200) according to the manual gear adjusting signal and the ambient light induction signal;
searching a duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear;
and displaying an actual display brightness adjusting control (510) on a screen according to the actual display brightness gear.
2. The brightness adjustment display method according to claim 1, further comprising:
and establishing the duty ratio gear comparison table according to the gear comparison table of the manual adjustment backlight module.
3. The brightness adjustment display method according to claim 2, wherein the method of searching the duty ratio step comparison table to determine the actual display brightness step comprises:
in a normal display mode, searching a wide-view-angle duty ratio gear comparison table to determine an actual display brightness gear;
and the wide-view-angle duty ratio gear comparison table is established according to the gear comparison table of the manual adjustment backlight module in the normal display mode.
4. A brightness adjustment display method according to claim 2 or 3, wherein the method of looking up the duty ratio step comparison table to determine the actual display brightness step comprises:
in the peep-proof display mode, searching a narrow visual angle duty ratio gear comparison table to determine an actual display brightness gear;
and the narrow-view-angle duty ratio gear comparison table is established according to the gear comparison table of the manual adjustment backlight module in the peep-proof display mode.
5. The brightness adjustment display method according to claim 1, further comprising:
and displaying a manual adjusting control (520) on a screen according to the manual adjusting gear signal.
6. A brightness adjusting display system is characterized by comprising
The first control module (100), when in a normal display mode, if in an automatic adjustment mode, the first control module (100) outputs a duty ratio signal to the backlight driving module (200) according to a manual adjustment gear signal and an ambient light sensing signal, and searches a wide-view-angle duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear and output the actual display brightness gear;
the storage module (300) is connected with the first control module (100), and receives the actual display brightness gear sent by the first control module (100);
the processing module (400), the processing module (400) is connected with the storage module (300), and is used for calling the actual display brightness gear stored in the storage module (300) and outputting the actual display brightness gear;
and the screen display module (500) is connected with the processing module (400), and in a normal display mode, the screen display module (500) displays an actual display brightness adjusting control (510) on a screen according to the actual display brightness gear sent by the processing module (400).
7. The system of claim 6, wherein the processing module (400) is further connected to a light sensing module and the first control module (100), respectively, for receiving an ambient light sensing signal detected by the light sensing module and sending the ambient light sensing signal to the first control module (100).
8. The dimming display system according to claim 6, further comprising:
a second control module (700), wherein in a privacy protection display mode, the second control module (700) outputs a duty cycle signal to a backlight driving module (200) according to the manual gear adjustment signal and the ambient light sensing signal, searches a narrow viewing angle duty cycle gear comparison table according to the duty cycle signal to determine the actual display brightness gear, and outputs the actual display brightness gear;
the time sequence controller (800) is connected with the second control module (700), receives the actual display brightness gear sent by the second control module (700), and sends the actual display brightness gear;
the display card (900), the display card (900) is respectively connected with the time sequence controller (800) and the screen display module (500), receives the actual display brightness gear sent by the time sequence controller (800), and sends the actual display brightness gear to the screen display module (500),
and when the screen display module (500) is in a peep-proof display mode, the actual display brightness adjusting control (510) is displayed on the screen according to the actual display brightness gear sent by the display card (900).
9. The dimming display system according to claim 8, wherein the timing controller (800) is further connected to a manual dimming backlight module, receives the manual dimming level signal outputted from the manual dimming backlight module, and sends the manual dimming level signal to the second control module (700).
10. The dimming display system of claim 6, wherein the screen display module (500) further displays a manual adjustment control (520) on the screen in response to the manual adjustment gear signal.
11. A liquid crystal display device comprising the brightness-adjusted display system according to any one of claims 6 to 10.
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