CN114464144B - Brightness adjustment display method, brightness adjustment display system and liquid crystal display device - Google Patents
Brightness adjustment display method, brightness adjustment display system and liquid crystal display device Download PDFInfo
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- CN114464144B CN114464144B CN202210109138.XA CN202210109138A CN114464144B CN 114464144 B CN114464144 B CN 114464144B CN 202210109138 A CN202210109138 A CN 202210109138A CN 114464144 B CN114464144 B CN 114464144B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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 sensing signal; according to the duty ratio signal, searching a duty ratio gear comparison table to determine an actual display brightness gear; and displaying the actual display brightness adjusting control on the 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, if the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device are 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, and therefore a user can obtain better interaction 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
Because the lcd device has many advantages such as light weight, energy saving, and no radiation, it is widely used in electronic devices such as televisions, personal computers, tablet computers, personal Digital Assistants (PDAs), cellular phones, and digital cameras. Moreover, with the development of the era, the notebook computers are increasingly widely used, and the user experience is also increasingly important. The brightness on the screen of the notebook computer can be adjusted by using the keyboard F5/F6, and meanwhile, a brightness bar corresponding to the keyboard input gear can appear on the screen, so that the user obtains better experience.
In order to automatically adjust the backlight brightness according to the ambient light brightness, the liquid crystal display device is provided with an automatic adjustment mode, and a light sensor can be added into the notebook computer. When the automatic adjusting mode is started, the light sensor detects the brightness of surrounding environment, if the surrounding environment is dark, the notebook computer automatically reduces the backlight brightness, and at the moment, the adjusting keyboard input gear and the brightness bar on the screen are not matched with the actual backlight brightness, so that the brightness bar on the screen cannot display the actual display brightness, and the user experience is reduced.
Disclosure of Invention
In view of the foregoing, an object of the present invention is to provide a brightness adjustment display system, which is used for displaying actual display brightness of an actual display brightness adjustment control on a screen, so as to improve 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 sensing signal; according to the duty ratio signal, searching a duty ratio gear comparison table to determine an actual display brightness gear; and displaying the actual display brightness adjusting control on the 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 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-viewing-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-view-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-view-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: a manual adjustment control (520) is displayed on the screen based on the manual adjustment gear signal.
Further, when the manual gear adjusting 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 best brightness of the peep-proof display mode, and if the brightness is 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 brightness adjustment display system which comprises a first control module, a storage module, a processing module and a screen display module. And when the first control module is in the normal display mode, outputting a duty ratio signal to the backlight driving module according to the manual adjustment gear signal and the ambient light sensing signal if the first control module is in the automatic adjustment mode, searching a wide-view duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear, and outputting the actual display brightness gear. 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 in a normal display mode, the actual display brightness adjustment control is displayed on the screen according to the actual display brightness gear sent by the processing module.
Further, the processing module is further connected with the light sensing module and the first control module respectively, receives the ambient light sensing signal detected by the light sensing module, and sends the ambient light sensing signal to the first control module.
Further, the manual adjustment backlight module is a keyboard input module.
Further, the brightness adjustment 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 a manual adjustment gear signal and an ambient light induction signal, searching a narrow-view 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. The time sequence 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 the peep-proof display mode, displaying the actual display brightness adjusting control on the screen according to the actual display brightness gear sent by the display card.
Further, the time sequence controller is further connected with the 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 is used for displaying a manual adjustment control on a screen according to the manual adjustment 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 the screen to prompt the user that the current brightness is the best brightness of the peep-proof display mode, and if the brightness is 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 adjustment display system.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
according to the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device, if the brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device are 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 obtains better interaction experience.
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
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 the 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 of 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
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description refers to the specific implementation, method, steps, structure, features and effects of the brightness adjustment display system and lighting test device according to the present invention with reference to the accompanying drawings and preferred embodiments.
The foregoing and other features, aspects, and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments, which proceeds with reference to the accompanying drawings. While the invention may be susceptible to further details of embodiments and examples of means and effects for achieving the desired purpose, the drawings are provided for the purpose of reference and illustration only and are not intended to be limiting.
Referring to fig. 1, fig. 1 is a schematic diagram of a brightness adjustment display method according to an embodiment of the invention.
As shown in fig. 1, the luminance adjustment method of the present embodiment includes:
s1, outputting a duty ratio signal to a backlight driving module according to a manual gear adjusting signal and an ambient light sensing signal.
When 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 adjusting module may be a keyboard input module, for example, a keyboard input module with adjustable brightness in a notebook computer keyboard.
S2, searching a duty ratio gear comparison table according to the duty ratio signal to determine an 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 adjustment mode, each gear value of the manual adjustment gear signal corresponds to a fixed duty cycle signal, for example, when the manual adjustment gear is 10 gears, the duty cycle signal may be 100%, when the manual adjustment gear is 9 gears, the duty cycle signal may be 76.6%, and so on. However, when in the automatic adjustment mode, 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 the duty ratio gear comparison table needs to be searched according to the duty ratio signal to determine the actual display brightness gear. Meanwhile, according to different display modes, different duty ratio gear comparison tables can be formulated 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 adjustment control can be displayed on the screen according to the actual display brightness gear, and then the user can intuitively determine the actual display brightness gear of the current screen through the actual display brightness adjustment control displayed on the screen. In an embodiment, when the manual adjustment mode is switched to the automatic adjustment mode, the screen automatically displays the actual display brightness adjustment control, the actual display brightness gear can be automatically adjusted along with the change of the ambient light, and the user can determine the actual display brightness gear through the actual display brightness adjustment control. In an embodiment, the manual adjustment backlight module can be adjusted to increase or decrease the brightness, and the actual display brightness gear displayed by the actual display brightness adjustment control displayed on the screen can be seen to be increased or decreased correspondingly, so that the user can know the actual display brightness gear corresponding to the current brightness, and can adjust the brightness according to the specific requirement of the user, for example, adjust the actual display brightness gear to the gear required by the user, thereby obtaining better interactive experience for the user. In an 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 cycle gear comparison table to determine an actual display brightness gear comprises: and in the normal display mode, searching a wide-view duty ratio gear comparison table to determine the actual display brightness gear. In an embodiment, the method for searching the wide-view duty cycle gear comparison table further includes: and establishing a wide-view-angle duty ratio gear comparison table according to the gear comparison table when the backlight module is manually adjusted to be in the normal display mode. In an embodiment, the brightness adjustment display method further includes: and displaying a manual adjustment control on a screen according to the manual adjustment gear signal.
Specifically, in the normal display mode, a wide-angle duty ratio shift map may be searched to determine an actual display luminance shift. The wide-viewing-angle duty ratio gear comparison table can be established according to the gear comparison table when the backlight module is in the normal display mode through manual adjustment. The corresponding duty ratio interval is set for each gear of the wide visual angle duty ratio gear comparison table, and in the two endpoints of the duty ratio interval, the value of the first endpoint can be the size of the duty ratio corresponding to the same gear of the gear comparison table when the backlight module is in the normal display mode, and the value of the second endpoint can be the size of the duty ratio corresponding to the next gear of the gear comparison table when the backlight module is in the normal display mode. For example, if the manual adjustment backlight module is in the gear comparison table in the normal display mode, the duty ratio signal is 100% when the manual adjustment gear signal is 10 gears, and the duty ratio signal is 76.6% when the manual adjustment gear signal is 9 gears, the 10 gears of the established wide-viewing angle duty ratio gear comparison table can correspond to the (76.6, 100) duty ratio range.
In one embodiment, a method for searching a duty cycle gear comparison table to determine an actual display brightness gear comprises: and in the peep-proof display mode, searching a narrow-view-angle duty ratio gear comparison table to determine the actual display brightness gear. In an embodiment, the method for searching the narrow viewing angle duty cycle gear comparison table further includes: and establishing a narrow-view-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 an embodiment, the brightness adjustment display method further includes: and displaying a manual adjustment control on a screen according to the manual adjustment gear signal. In an embodiment, when the manual gear adjusting signal of the maximum gear is continuously received, a prompt box is popped up on the screen to prompt the user that the current brightness is the best brightness of the peep-proof display mode, if the brightness is to be continuously improved, the normal display mode is recommended to be switched to or the ambient light brightness is improved.
Specifically, in the peep-proof display mode, a narrow viewing angle duty ratio gear comparison table may be searched to determine an actual display brightness gear. The narrow-view-angle duty ratio gear comparison table can be established according to the gear comparison table when the backlight module is in the peep-proof display mode. The corresponding duty ratio interval is set for each gear of the narrow visual angle duty ratio gear comparison table, and in the two endpoints of the duty ratio interval, the value of the first endpoint can be the size of the duty ratio corresponding to the same gear of the gear comparison table when the backlight module is in the peep-proof display mode, and the value of the second endpoint can be the size of the duty ratio corresponding to the next gear of the gear comparison table when the backlight module is in the peep-proof display mode. For example, if the manual adjustment backlight module is in the gear comparison table in the peep-proof display mode, when the manual adjustment gear signal is in the gear comparison table in the peep-proof display mode, the duty ratio signal is 84.71%, and when the manual adjustment gear signal is in the gear 9, the duty ratio signal is 70.06%, then the 10 gears of the established narrow viewing angle duty ratio gear comparison table can correspond to the duty ratio interval (70.06, 84.71). If the brightness is to be continuously improved, the normal display mode is switched to 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 not corresponds to the manual adjustment gear signal.
According to the brightness adjustment display method, when the man-machine interaction is performed, the actual display brightness adjustment control corresponding to the actual display brightness displayed by the screen is watched when the man-machine interaction is performed, so that a user obtains better interaction experience.
Based on the luminance adjustment method of the above embodiment, the following embodiment can be obtained.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic circuit diagram of a brightness adjusting display system according to an embodiment of the invention. Fig. 3 is a flowchart illustrating an implementation of the 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, a 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 a wide-viewing-angle duty ratio gear comparison table is searched 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 to the first control module 100, and receives the actual display brightness level sent by the first control module 100. The processing module 400 is connected with 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, 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.
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, which in one embodiment 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 first control module 100 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 of 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 adjusting module may be a keyboard input module, for example, a keyboard input module with adjustable brightness in a notebook computer keyboard. 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 also searches the wide-view duty ratio shift table according to the duty ratio signal to determine an actual display brightness shift, and outputs the actual display brightness shift to the storage module 300 for storage. The processing module 400 retrieves the actual display brightness level 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 gear through the actual display brightness adjustment control 510 of the viewing screen display, so that the user obtains better interaction experience.
The magnitude of the duty ratio signal finally sent to the backlight driving module 200 in the automatic adjustment mode is not necessarily in one-to-one correspondence with the magnitude of the duty ratio signal corresponding to the gear value of the manual adjustment gear signal, so that 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. The corresponding duty ratio interval is set for each gear of the duty ratio gear comparison table, and in the two endpoints of the duty ratio interval, the value of the first endpoint can be the size of the duty ratio corresponding to the same gear of the gear comparison table of the manual adjustment backlight module in the normal display mode, and the value of the second endpoint can be the size of the duty ratio corresponding to the next gear of the gear comparison table of the manual adjustment backlight module in the normal display mode. For example, if the manual adjustment backlight module is in the gear comparison table in the normal display mode, the duty ratio signal is 100% when the manual adjustment gear signal is 10 gears, and the duty ratio signal is 76.6% when the manual adjustment gear signal is 9 gears, the 10 gears of the established wide-viewing-angle duty ratio gear comparison table can correspond to the duty ratio interval (76.6% and 100% ].e. the table 1 below is the wide-viewing-angle duty ratio gear comparison table established according to the gear comparison table in the normal display mode of the manual adjustment backlight module.
Table 1:
in an embodiment, the first control module 100 may be an embedded control chip.
In one embodiment, the memory module 300 may be a FLASH memory 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 an embodiment, the manual adjustment backlight module may be a keyboard input module, for example, a keyboard input module with adjustable brightness in a notebook computer keyboard.
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 first control module outputs a duty ratio signal 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 screen display module displays the actual display brightness adjustment control 510 on the screen according to the manual adjustment gear signal. Therefore, when the brightness adjustment display system of the embodiment can be in the normal display mode, the automatic adjustment mode or the manual adjustment mode is selected, and when the brightness adjustment system is in the automatic adjustment mode, the actual display brightness gear can be determined by watching the actual display brightness adjustment control 510 displayed on the screen, so that the user obtains better interaction experience.
In one embodiment, the screen display module 500 also 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 the manual adjustment control 520 on the screen according to the manual adjustment gear signal, and the manual input gear value can be intuitively known 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, the user can determine the actual display brightness gear through the manual adjustment control 520, and the user can determine the manual adjustment gear through the actual display brightness adjustment control 510. In an embodiment, the brightness may be increased or decreased along with the adjustment input of the manual adjustment backlight module, and the screen display module 500 may correspondingly increase or decrease the manual input gear value displayed by the manual adjustment control 520 displayed on the screen, and may also correspondingly increase or decrease the actual display brightness gear displayed by the actual display brightness adjustment control 510 displayed on the screen. Therefore, the user can clearly know the input and output conditions of brightness adjustment, brightness adjustment can be carried out according to the needs, 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 gear, so that the manual adjustment control 520 displayed on the screen corresponds to the actual display brightness gear, and not corresponds to the manual adjustment gear signal.
It should be noted that, the brightness adjustment display system of the present embodiment is suitable for performing man-machine interaction brightness adjustment with 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 peep-proof display mode, such as a notebook computer, and the like.
Referring to fig. 5 and fig. 6, fig. 5 is a circuit schematic diagram of a brightness adjusting display system according to an embodiment of the invention. Fig. 6 is a flowchart of 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 graphic card 900. 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, searches a narrow viewing 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 when in the peep-proof display mode. The timing controller 800 is connected to the second control module 700, receives the actual display brightness level transmitted by the second control module 700, and transmits the actual display brightness level. The display card 900 is respectively connected to the timing controller 800 and the screen display module 500, and receives the actual display brightness level sent by the timing controller 800, and sends the actual display brightness level to the screen display module 500. In the peep-proof display mode, the screen display module 500 displays the actual display brightness adjustment control 510 on the screen according to the actual display brightness gear sent by the graphics card 900.
In an 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 together, 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 also receives a manual adjustment gear signal, for example, the second control module 700 receives a 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 in the automatic adjustment mode, the second control module 700 outputs a duty cycle 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 of 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 adjusting module may be a keyboard input module, for example, a keyboard input module with adjustable brightness in a notebook computer keyboard. 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 viewing angle duty cycle gear map according to the duty cycle signal to determine an actual display brightness gear, and writes the actual display brightness gear to a register of the timing controller 800. The timing controller 800 is configured to provide a corresponding timing signal for outputting an image signal during the peep-proof display mode, and also receive an actual display brightness level sent by the second control module 700 and send the actual display brightness level to the display card 900. The graphic card 900 receives the actual display brightness level transmitted from the timing controller 800 and transmits the actual display brightness level to the screen display module 500. The screen display module 500 displays the actual display brightness adjustment control 510 on the screen according to the actual display brightness gear sent by the graphics card 900 in the peep-proof display mode. Thus, the user can determine the actual display brightness gear through the actual display brightness adjustment control 510 of the viewing screen display, so that the user obtains better interaction experience.
The magnitude of the duty ratio signal finally sent to the backlight driving module 200 by the automatic adjustment mode is not necessarily in one-to-one correspondence with the magnitude of the duty ratio signal corresponding to the gear value of the manual adjustment gear signal in the peep-proof display mode, so that 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. The corresponding duty ratio interval is set for each gear of the duty ratio gear comparison table, and in the two endpoints of the duty ratio interval, the value of the first endpoint can be the size of the duty ratio corresponding to the same gear of the gear comparison table of the manual adjustment backlight module in the peep-proof display mode, and the value of the second endpoint can be the size of the duty ratio corresponding to the next gear of the gear comparison table of the manual adjustment backlight module in the peep-proof display mode. For example, table 2 below is a narrow viewing angle duty ratio gear comparison table established according to a gear comparison table of manually adjusting the backlight module in the peep-proof display mode. However, the invention does not limit the establishment of the duty ratio gear comparison table, and the gear comparison table of the backlight module in the peep-proof display mode can be selected in other modes or set a proper duty ratio interval automatically or manually without manual adjustment, so that a user obtains better interaction experience.
Table 2:
in an 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 through an I2C bus.
In one embodiment, the timing controller 800 is connected to the graphics card 900 through an AUX line.
In an embodiment, the manual adjustment backlight module may be a keyboard input module, for example, a keyboard input module with adjustable brightness in a notebook computer keyboard.
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 best brightness of the peep-proof display mode, if the brightness is to be continuously improved, the normal display mode is recommended to be switched to or the ambient light brightness is improved. For example, the maximum gear of the manual adjustment gear signal is 10, and because the duty ratio signal corresponding to the actual display brightness gear in the peep-proof display mode is determined according to the manual adjustment gear signal and the ambient light sensing signal, the actual display brightness gear may be 9, so when the second control module 700 continuously receives the manual adjustment gear signal of 10 gears, 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 in the peep-proof display mode, and if the brightness is to be continuously improved, the actual display brightness is increased by suggesting to switch to the normal display mode or improving the ambient light brightness.
It should be noted that, in the brightness adjustment display system of the present embodiment, the human-computer interaction brightness adjustment is performed in the peep-proof display mode, which is only applicable to the automatic adjustment mode but not to the manual adjustment mode.
In one embodiment, the screen display module 500 also 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 the manual adjustment control 520 on the screen according to the manual adjustment gear signal, and the manual input gear value can be intuitively known 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, the user can determine the actual display brightness gear through the manual adjustment control 520, and the user can determine the manual adjustment gear through the actual display brightness adjustment control 510. In an embodiment, the brightness may be increased or decreased along with the adjustment input of the manual adjustment backlight module, and the screen display module 500 may correspondingly increase or decrease the manual input gear value displayed by the manual adjustment control 520 displayed on the screen, and may also correspondingly increase or decrease the actual display brightness gear displayed by the actual display brightness adjustment control 510 displayed on the screen. Therefore, the user can clearly know the input and output conditions of brightness adjustment, brightness adjustment can be carried out according to the needs, 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 gear, so that the manual adjustment control 520 displayed on the screen corresponds to the actual display brightness gear, and not corresponds to the manual adjustment gear signal.
Based on the same inventive concept, the embodiment of the invention also provides a liquid crystal display device, which comprises the brightness adjustment display system. The implementation of the lcd device can be referred to the above embodiments of the brightness adjustment display system, and the repetition is omitted.
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, so as to generate 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 brightness adjustment display method, the brightness adjustment display system and the liquid crystal display device are 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 interaction experience.
The present invention is not limited to the preferred embodiments, but is capable of modification and variation in detail, and is intended to cover modifications, equivalents and variations of the above embodiments in accordance with the principles of the present invention, without departing from the scope of the invention.
Claims (11)
1. A brightness adjustment display method, comprising:
outputting a duty cycle signal to a backlight driving module (200) according to the manual adjustment gear signal and the ambient light sensing signal when in the automatic adjustment mode;
according to the duty ratio signal, searching a duty ratio gear comparison table to determine an actual display brightness gear, wherein the duty ratio gear comparison table is configured as a corresponding relation between the duty ratio signal and the actual display brightness gear;
and displaying an actual display brightness adjustment control (510) on the screen according to the actual display brightness gear.
2. The brightness adjustment display method according to claim 1, characterized in that the brightness adjustment display method further comprises:
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 looking up the duty ratio shift position map to determine the actual display brightness shift position comprises:
in a normal display mode, searching a wide-view duty ratio gear comparison table to determine an actual display brightness gear;
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, characterized in that the method of looking up a duty cycle gear map to determine the actual display brightness gear comprises:
searching a narrow-view-angle duty ratio gear comparison table to determine an actual display brightness gear when the peep-proof display mode is adopted;
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, characterized in that the brightness adjustment display method further comprises:
and displaying a manual adjustment control (520) on a screen according to the manual adjustment gear signal.
6. A brightness adjustment display system, comprising
The first control module (100), when the first control module (100) is in the normal display mode, if the first control module is in the automatic adjustment mode, outputting a duty ratio signal to the backlight driving module (200) according to a manual adjustment gear signal and an ambient light induction signal, searching a wide-view duty ratio gear comparison table according to the duty ratio signal to determine an actual display brightness gear, and outputting the actual display brightness gear;
the storage module (300) is connected with the first control module (100) and used for receiving the actual display brightness gear sent by the first control module (100);
the processing module (400) is connected with the storage module (300), and is used for calling the actual display brightness gear stored by the storage module (300) and outputting the actual display brightness gear;
and the screen display module (500), wherein the screen display module (500) is connected with the processing module (400), and in a normal display mode, the actual display brightness adjustment control (510) is displayed on the screen according to the actual display brightness gear sent by the processing module (400).
7. The brightness adjustment display system of claim 6, wherein the processing module (400) is further coupled to the light sensing module and the first control module (100), respectively, and is configured to receive the ambient light sensing signal detected by the light sensing module and to send the ambient light sensing signal to the first control module (100).
8. The brightness adjustment display system of claim 6, wherein the brightness adjustment display system further comprises:
the second control module (700), when the second control module (700) is in the peep-proof display mode, the second control module outputs a duty ratio signal to the backlight driving module (200) according to the manual adjustment gear signal and the ambient light sensing signal, searches a narrow-view duty ratio gear comparison table according to the duty ratio 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 the peep-proof display mode, displaying an actual display brightness adjusting control (510) on the screen according to the actual display brightness gear sent by the display card (900).
9. The brightness adjustment display system of claim 8, wherein the timing controller (800) is further coupled to 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 (700).
10. The brightness adjustment display system of claim 6 wherein the screen display module (500) further displays a manual adjustment control (520) on a screen in accordance with the manual adjustment gear signal.
11. A liquid crystal display device comprising a brightness adjustment display system according to any one of claims 6 to 10.
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| CN106782298A (en) * | 2017-01-18 | 2017-05-31 | 深圳市金研微科技有限公司 | A kind of brightness adjusting method of LED display screen system |
| CN107945745A (en) * | 2017-11-16 | 2018-04-20 | 昆山龙腾光电有限公司 | The adjusting method and regulating device of backlight illumination |
| CN111028793B (en) * | 2020-01-06 | 2021-10-15 | 昆山龙腾光电股份有限公司 | Electronic equipment and backlight brightness adjusting method |
| CN111681615B (en) * | 2020-06-22 | 2021-09-21 | 昆山龙腾光电股份有限公司 | Backlight control circuit and backlight control method |
| CN111785218B (en) * | 2020-07-17 | 2022-03-25 | 昆山龙腾光电股份有限公司 | Electronic equipment and backlight brightness adjusting method |
| CN212675893U (en) * | 2020-08-12 | 2021-03-09 | 昆山龙腾光电股份有限公司 | Backlight driving device and electronic device |
| CN112509508A (en) * | 2020-11-28 | 2021-03-16 | 珠海格力电器股份有限公司 | Washing machine panel display brightness adjusting device and brightness adjusting method |
| CN114758628B (en) * | 2021-10-26 | 2023-09-22 | 嘉视(山东)电子科技有限公司 | Method for adjusting light in display module area |
| CN113889056B (en) * | 2021-10-26 | 2023-01-31 | 深圳电器公司 | Brightness adjusting method and related device |
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