CN108922479B - Method and device for managing liquid crystal display module - Google Patents
Method and device for managing liquid crystal display module Download PDFInfo
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- CN108922479B CN108922479B CN201810832054.2A CN201810832054A CN108922479B CN 108922479 B CN108922479 B CN 108922479B CN 201810832054 A CN201810832054 A CN 201810832054A CN 108922479 B CN108922479 B CN 108922479B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—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 using liquid crystals
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Abstract
The present disclosure relates to a method and apparatus for managing a liquid crystal display module. The method comprises the following steps: monitoring the temperature of a display driving chip in the liquid crystal display module; and adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip. According to the liquid crystal display module, the display effect can be guaranteed as far as possible while the liquid crystal display module is controlled to generate heat.
Description
Technical Field
The present disclosure relates to the field of liquid crystal display modules, and more particularly, to a method and apparatus for managing a liquid crystal module.
Background
The liquid crystal display module is an important component of terminal equipment such as a smart phone. In a current liquid crystal Display Module (LCD Module, abbreviated as DDIC), a backlight bar and a Display Driver IC (Display Driver IC) are two components with the largest heat generation, and the two components are usually overlapped in a z direction (i.e. a direction perpendicular to a Display screen), which leads to an over-standard thermal evaluation of the whole device.
Disclosure of Invention
The disclosure provides a method for managing a liquid crystal display module and a corresponding device.
According to a first aspect of the embodiments of the present disclosure, a method of managing a liquid crystal display module is provided, the method including monitoring a temperature of a display driving chip in the liquid crystal display module; and adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for managing a liquid crystal display module, the apparatus including a temperature monitoring module configured to monitor a temperature of a display driving chip in the liquid crystal display module; and the adjusting module is configured to adjust the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for managing a liquid crystal display module, the apparatus comprising: the display driving circuit comprises a display driving chip, wherein a thermosensitive element, a temperature monitoring circuit and a display control unit are arranged in the display driving chip, the temperature monitoring circuit monitors the temperature of the display driving chip by monitoring the thermosensitive element, and the display control unit generates a backlight brightness adjusting signal and an optical parameter adjusting signal according to the temperature of the display driving chip; the backlight driving unit is connected with the display driving chip, receives the backlight brightness adjusting signal and adjusts the backlight brightness of the display screen according to the backlight brightness adjusting signal; and the optical parameter setting unit is connected with the display driving chip, receives the optical parameter adjusting signal and adjusts the optical parameters of the display screen according to the optical parameter adjusting signal.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for managing a liquid crystal display module, including: a processor; a memory for storing processor-executable instructions, a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.
According to a fifth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions which, when executed by a processor, enable the processor to perform the above-described method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through when the backlight brightness of the display screen is adjusted according to the temperature of the display driving chip, the optical parameters of the display screen are adjusted, so that the overall heating condition of the liquid crystal display module can be adjusted through adjusting the backlight brightness of the display screen, and the display effect can be guaranteed as far as possible under the condition that the backlight brightness is limited through adjusting the optical parameters of the display screen.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment.
Fig. 2 is an exemplary flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment.
Fig. 3 is an exemplary flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 7 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 10 is a block diagram illustrating a structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 11 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 12 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Fig. 13 is a block diagram illustrating a structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment. The method can be applied to terminal equipment such as a smart phone and the like which adopts an LCD display screen. The method comprises the following steps.
In step 102, the temperature of the display driver chip in the liquid crystal display module is monitored.
In one possible implementation, the temperature of the display driving chip may be monitored by detecting a thermosensitive element provided within the display driving chip. By a thermistor is meant that the particular physical properties of the element will change with temperature, such as a thermistor or the like. For example, many display driver chips are provided with a thermistor, and the current temperature of the thermistor can be obtained by monitoring the resistance value of the thermistor, and can be considered as the temperature that can be used for representing the current temperature of the display driver chip.
In step 104, adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip.
The backlight brightness of the display screen can be adjusted by adjusting the current of the backlight lamp bar. As mentioned in the background section, backlight bars are the main heat generating components in lcd modules. According to the present disclosure, the backlight brightness of the display screen, i.e. the backlight bar current, can be adjusted according to the temperature of the display driving chip (another main heating component in the liquid crystal display module) to control the overall heating condition of the liquid crystal display module.
In one possible implementation, the optical parameter of the display screen may include at least one of: gamma parameter, color enhancement parameter, and contrast. The gamma parameter, also referred to as gamma parameter or gamma parameter, is a parameter used in the art to characterize the corresponding characteristics of the brightness of a display device. Color enhancement, also called color enhancement, image enhancement, etc., which can change the visual effect of the image by adjusting the histogram of the image gray level map, etc. through a specific algorithm, achieve the purpose of making the color more vivid, the details more prominent and/or the target more easily recognized, etc. Contrast is the most commonly used parameter in the field of images, which can characterize the contrast of an image. The optical parameters described above may all affect the visual appearance of the image.
In a possible implementation manner, the adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driver chip includes: when the temperature of the display driving chip reaches a first temperature threshold value, reducing the backlight brightness, and executing at least one of the following steps: the gamma parameter of the display screen is improved, the color enhancement function of the display screen is started, and the contrast of the display screen is improved. The first temperature threshold may be determined by trial and error as needed by those skilled in the art and preset in the display driving chip. The first temperature threshold may also be referred to as a critical temperature of the thermal element. According to the implementation mode, when the temperature of the display driving chip reaches the first temperature threshold, on one hand, the backlight brightness can be reduced, namely, the current of the backlight lamp strip is reduced, so that the overall heating condition of the liquid crystal display module is improved, and on the other hand, the influence of the reduction of the backlight brightness on the image definition and the like can be reduced by improving the gamma parameter of the display screen, starting the color enhancement function of the display screen and/or improving the contrast of the display screen.
In the above embodiment, the temperature of the display driving chip, which is a main heating component in the liquid crystal display module, is monitored, and the backlight brightness and the optical parameters of the display screen are adjusted according to the temperature, so that not only the overall heating condition of the liquid crystal display module can be adjusted by adjusting the backlight brightness of the display screen, but also the display effect can be ensured as much as possible under the condition that the backlight brightness is limited by adjusting the optical parameters of the display screen.
Fig. 2 is an exemplary flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 2, the method further includes step 106, when the temperature of the display driving chip decreases from above the first temperature threshold to below the first temperature threshold, stopping adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip.
According to the implementation manner, when the temperature of the display driving chip is reduced from the temperature above the first temperature threshold to the temperature below the first temperature threshold, the adjustment of the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip can be stopped in time.
It is noted that the backlight adjustment and the optical parameter adjustment of the display screen may not only be limited by the temperature of the display driver chip, but in some cases it may also be influenced by the temperature of other components or environmental factors, etc., i.e. it may be multi-factor driven. Therefore, in this implementation, when the temperature of the display driver chip drops below the first temperature threshold from above the first temperature threshold, the adjustment of the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driver chip is stopped, that is, the adjustment mechanism according to the present disclosure is stopped, but does not mean that the adjustment of the backlight brightness of the display screen and/or the optical parameters of the display screen is stopped.
Fig. 3 is an exemplary flowchart illustrating a method of managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 3, the method further comprises the following steps 108 and 110.
The ambient light level may be collected by any brightness collecting element (e.g., a brightness sensor) deemed suitable by those skilled in the art, and the ambient light level collected by the brightness collecting element may be received to detect the ambient light level.
And step 110, when the temperature of the display driving chip is reduced from the first temperature threshold to the second temperature threshold and the ambient light brightness reaches the brightness threshold, stopping adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip. Similarly, since adjusting the backlight brightness and/or the optical parameters of the display screen may be driven by various factors, in this implementation, adjusting the backlight brightness and the optical parameters of the display screen according to the temperature of the display driving chip is stopped, that is, adjusting according to the adjusting mechanism of the present disclosure is stopped, but does not mean that adjusting the backlight brightness and the optical parameters of the display screen is stopped.
The inventors have intensively studied and found that, in some cases, for example, when the ambient light brightness reaches a certain higher brightness value, if the backlight brightness of the display screen and the optical parameters of the display screen are immediately stopped being adjusted according to the temperature of the display driver chip when the temperature of the display driver chip drops below the first temperature threshold value from above the first temperature threshold value, the backlight brightness may be quickly adjusted again under certain mechanisms to adapt to the ambient light, so that the overall thermal evaluation of the terminal just controlled exceeds the expected value. In addition, in this case, the temperature of the display driver chip may immediately return to above the first temperature threshold, and the operation of adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driver chip may be performed again soon, while the backlight brightness is turned on again due to the fact that the adjustment is stopped while the heating condition is just controlled (i.e., the temperature of the display driver chip falls from above the first temperature threshold to below the first temperature threshold), and so on, the screen brightness is ignored, and the user experience is very poor.
Therefore, according to the implementation manner, when the temperature of the display driving chip is reduced from above the first temperature threshold to below the first temperature threshold and the ambient light brightness reaches the brightness threshold, the backlight brightness of the display screen and the optical parameters of the display screen are stopped being adjusted according to the temperature of the display driving chip, which is beneficial to stabilizing the heating condition of the terminal device under a specific condition and providing a relatively stable visual experience for a user.
In one example of the above implementation, the brightness threshold is a lowest ambient temperature corresponding to a maximum backlight brightness of the display screen.
The terminal device is usually provided with a backlight adjusting mechanism, different ambient light brightness corresponds to different backlight brightness, so that a clearer visual effect can be presented to a user as far as possible under different ambient light, when the ambient light brightness reaches a certain brightness value, the ambient light brightness is increased again corresponding to the maximum backlight brightness, and the backlight brightness is not increased. Through sufficient research and test, the inventor sets the brightness threshold value as the lowest ambient temperature corresponding to the maximum backlight brightness of the display screen under certain conditions, thereby being beneficial to stabilizing the heating condition of the terminal equipment and providing more stable visual experience for users.
In one possible implementation, the method may further include: and adjusting the frequency of the display driving chip according to the temperature of the display driving chip.
In an example of the foregoing implementation manner, the adjusting the frequency of the display driver chip according to the temperature of the display driver chip includes: and when the temperature of the display driving chip reaches a second temperature threshold value, reducing the frequency of the display driving chip.
According to the implementation mode, the heating condition of the display driving chip is favorably controlled.
Fig. 4 is a block diagram illustrating a structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. The device can be applied to terminal equipment such as a smart phone and the like which adopts an LCD display screen. As shown in fig. 4, the apparatus includes a temperature monitoring module 402 and a conditioning module 404. The temperature monitoring module 402 is configured to monitor the temperature of the display driver chip in the lcd module. The adjusting module 404 is configured to adjust the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip.
In one possible implementation, the optical parameter of the display screen includes at least one of: gamma parameter, color enhancement parameter, and contrast.
Fig. 5 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 5, the adjusting module 404 may include an adjusting sub-module 4042 configured to reduce the backlight brightness when the temperature of the display driving chip reaches the first temperature threshold, and perform at least one of the following: the gamma parameter of the display screen is improved, the color enhancement function of the display screen is started, and the contrast of the display screen is improved.
Fig. 6 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 6, the apparatus may further include a first stopping module 406 configured to stop adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip when the temperature of the display driving chip falls below the first temperature threshold from above the first temperature threshold.
Fig. 7 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 7, the apparatus may further include: a brightness monitoring module 408 configured to monitor ambient light brightness; a second stopping module 410 configured to stop adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip when the temperature of the display driving chip decreases from above the first temperature threshold to below the first temperature threshold and the ambient light brightness reaches the brightness threshold. In one example, the brightness threshold is a lowest ambient temperature corresponding to a maximum backlight brightness of the display screen.
Fig. 8 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 8, the apparatus may further include: a frequency adjusting module 412 configured to adjust a frequency of the display driver chip according to a temperature of the display driver chip.
Fig. 9 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown in fig. 9, the frequency adjustment module 412 may include: a frequency adjustment submodule 4122 configured to decrease the frequency of the display driving chip when the temperature of the display driving chip reaches a second temperature threshold.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here
Fig. 10 is a block diagram illustrating a structure of an apparatus 1000 for managing a liquid crystal display module according to an exemplary embodiment. The device 1000 can be applied to terminal equipment such as a smart phone using an LCD display screen. As shown, the device 1000 includes a display driving chip 1002, a backlight driving unit 1004, and an optical parameter setting unit 1006.
A thermosensitive element 10022, a temperature monitoring circuit 10024 and a display control unit 10026 are disposed in the display driver chip 1002, the temperature monitoring circuit monitors the temperature of the display driver chip 1002 by monitoring the thermosensitive element 10022, and the display control unit 10026 generates a backlight brightness adjustment signal and an optical parameter adjustment signal according to the temperature of the display driver chip 1002. In one possible implementation, the temperature detection circuit 10024 and the display Control unit 10026 can be integrated into a module such as a cabac (Content Adaptive Backlight Control) or LABC (ambient light detection corresponding Backlight Control).
The backlight driving unit 1004 is connected to the display driving chip 1002, receives the backlight brightness adjusting signal, and adjusts the backlight brightness of the display screen according to the backlight brightness adjusting signal. For example, as shown, the backlight brightness of the display screen can be adjusted by adjusting the current of the backlight light bar 1020.
The optical parameter setting unit 1006 is connected to the display driver chip 1002, and receives the optical parameter adjusting signal, and adjusts an optical parameter of the display screen according to the optical parameter adjusting signal. The optical parameter setting unit 1006 may be integrated in the display screen. In one possible implementation, the optical parameter setting unit 1006 may be integrated in a display.
In one possible implementation, the optical parameter of the display screen includes at least one of: gamma parameter, color enhancement parameter, and contrast.
In a possible implementation manner, when the temperature of the display driver chip 1002 reaches a first temperature threshold, the display control unit 10026 of the display driver chip 1002 generates the backlight brightness adjustment signal and the optical parameter adjustment signal; the backlight adjusting unit 1004 reduces the backlight brightness of the display screen according to the backlight brightness adjusting signal; the optical parameter setting unit 1006 performs at least one of the following according to the optical parameter adjustment signal: the gamma parameter of the display screen is improved, the color enhancement function of the display screen is started, and the contrast of the display screen is improved.
In one possible implementation manner, when the temperature of the display driver chip 1002 decreases from above a first temperature threshold to below the first temperature threshold, the display control unit 10026 generates a first adjustment stop signal; the backlight driving unit 1004 stops adjusting the backlight brightness of the display screen according to the backlight brightness adjusting signal after receiving the first adjusting stop signal from the display driving chip 1002; the optical parameter setting unit 1006 stops adjusting the optical parameters of the display screen according to the optical parameter adjusting signal after receiving the first adjusting stop signal from the display driving chip 1002.
In some cases, the display driver chip 1002 may output the backlight brightness adjustment signal and the first adjustment stop signal through the same signal port, in other words, the backlight brightness adjustment signal and the first adjustment stop signal may be regarded as different states of the same signal; in other cases, the display driver chip 1002 may output the backlight brightness adjustment signal and the first adjustment stop signal through two signal ports. Similarly, the display driver chip 1002 may output the optical parameter adjustment signal and the first adjustment stop signal through the same signal port, in other words, the optical parameter adjustment signal and the first adjustment stop signal may be regarded as different states of the same signal; in other cases, the display driver chip 1002 may output the optical parameter adjustment signal and the first adjustment stop signal through two signal ports. The output ports and the input ports of the respective modules can be set as required by those skilled in the art, and the present disclosure is not limited thereto.
Fig. 11 is a block diagram illustrating an exemplary structure of an apparatus for managing a liquid crystal display module according to an exemplary embodiment. As shown, the apparatus further comprises: a brightness collecting element 1010 for collecting ambient light brightness; an adjustment stopping unit 1012 connected to the display driver chip 1002 and the brightness acquiring element 1010, receiving the temperature of the display driver chip 1002 monitored by the temperature monitoring circuit 10024 and the ambient light brightness acquired by the brightness acquiring element 1010, and generating a second adjustment stopping signal when the temperature of the display driver chip 1010 falls from above the first temperature threshold to below the first temperature threshold and the ambient light brightness reaches a brightness threshold; the backlight driving unit 1004 is connected to the adjustment stopping unit 1012, and stops adjusting the backlight brightness of the display screen according to the backlight brightness adjusting signal after receiving the second adjustment stopping signal; the optical parameter setting unit 1006 is connected to the adjustment stopping unit 1012, and stops adjusting the optical parameter of the display screen according to the optical parameter adjusting signal after receiving the second adjustment stopping signal. In one possible implementation, the brightness acquisition element 1010 may be integrated in the display driver chip 1010. In a possible implementation manner, the adjustment stopping unit 1012 may be implemented in a form of software, hardware or a combination thereof, which is not limited by the present disclosure.
In one example, the brightness threshold is a lowest ambient temperature corresponding to a maximum backlight brightness of the display screen.
Fig. 12 is a block diagram illustrating an exemplary structure of an apparatus 1000 for managing a liquid crystal display module according to an exemplary embodiment. As shown in the figure, the display driver chip 1002 further includes a frequency adjusting unit 10028, and the frequency adjusting unit 10028 adjusts the operating frequency of the display driver chip 1002 according to the temperature of the display driver chip 1002. In an example of this embodiment, the frequency adjusting unit 10028 includes a frequency adjusting subunit 10029, and when the temperature of the display driving chip 1002 reaches a second temperature threshold, the frequency adjusting subunit 1002 decreases the operating frequency of the display driving chip 1002.
Fig. 13 is a block diagram illustrating an apparatus 800 for managing a liquid crystal display module according to an exemplary embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 13, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A method for managing a liquid crystal display module, the method comprising:
monitoring the temperature of a display driving chip in the liquid crystal display module;
adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip;
the adjusting of the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip comprises the following steps:
when the temperature of the display driving chip reaches a first temperature threshold value, reducing the backlight brightness, and executing at least one of the following steps: improving gamma parameters of the display screen, starting a color enhancement function of the display screen and improving the contrast of the display screen;
the method further comprises the following steps:
monitoring the brightness of the environment;
and when the temperature of the display driving chip is reduced from the first temperature threshold value to the second temperature threshold value and the ambient light brightness reaches the brightness threshold value, stopping adjusting the backlight brightness of the display screen and the optical parameters of the display screen according to the temperature of the display driving chip, wherein the brightness threshold value is the lowest ambient light brightness corresponding to the maximum backlight brightness of the display screen.
2. The method of claim 1, further comprising:
and adjusting the frequency of the display driving chip according to the temperature of the display driving chip.
3. The method of claim 2, wherein adjusting the frequency of the display driver chip according to the temperature of the display driver chip comprises:
and when the temperature of the display driving chip reaches a second temperature threshold value, reducing the frequency of the display driving chip.
4. An apparatus for managing a liquid crystal display module, the apparatus comprising:
the display driving circuit comprises a display driving chip, wherein a thermosensitive element, a temperature monitoring circuit and a display control unit are arranged in the display driving chip, the temperature monitoring circuit monitors the temperature of the display driving chip by monitoring the thermosensitive element, and the display control unit generates a backlight brightness adjusting signal and an optical parameter adjusting signal according to the temperature of the display driving chip;
the backlight driving unit is connected with the display driving chip, receives the backlight brightness adjusting signal and adjusts the backlight brightness of the display screen according to the backlight brightness adjusting signal;
the optical parameter setting unit is connected with the display driving chip, receives the optical parameter adjusting signal and adjusts the optical parameters of the display screen according to the optical parameter adjusting signal;
when the temperature of the display driving chip reaches a first temperature threshold value, a display control unit of the display driving chip generates the backlight brightness adjusting signal and the optical parameter adjusting signal;
the backlight driving unit is used for reducing the backlight brightness of the display screen according to the backlight brightness adjusting signal;
the optical parameter setting unit performs at least one of the following according to the optical parameter adjustment signal: improving gamma parameters of the display screen, starting a color enhancement function of the display screen and improving the contrast of the display screen;
the device further comprises:
the brightness acquisition element is used for acquiring the brightness of the environment;
the adjustment stopping unit is connected with the display driving chip and the brightness acquisition element, receives the temperature of the display driving chip monitored by the temperature monitoring circuit and the ambient light brightness acquired by the brightness acquisition element, and generates a second adjustment stopping signal when the temperature of the display driving chip is reduced from the first temperature threshold value to the second temperature threshold value and the ambient light brightness reaches a brightness threshold value, wherein the brightness threshold value is the lowest ambient light brightness corresponding to the maximum backlight brightness of the display screen;
the backlight driving unit is connected with the adjustment stopping unit and stops adjusting the backlight brightness of the display screen according to the backlight brightness adjusting signal after receiving the second adjustment stopping signal;
and the optical parameter setting unit is connected with the adjusting and stopping unit, and stops adjusting the optical parameters of the display screen according to the optical parameter adjusting signal after receiving the second adjusting and stopping signal.
5. The device of claim 4, wherein the display driver chip further comprises a frequency adjustment module, and the frequency adjustment module adjusts the operating frequency of the display driver chip according to the temperature of the display driver chip.
6. The apparatus of claim 5, wherein:
the frequency adjusting module comprises a frequency adjusting submodule, and when the temperature of the display driving chip reaches a second temperature threshold value, the frequency adjusting submodule reduces the working frequency of the display driving chip.
7. An apparatus for managing a liquid crystal display module, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1-3.
8. A non-transitory computer readable storage medium having instructions therein, which when executed by a processor, enable the processor to perform the method of any one of claims 1-3.
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| CN112233624A (en) * | 2020-10-16 | 2021-01-15 | 上海华东汽车信息技术有限公司 | Backlight processing method, medium and device for instrument panel and vehicle |
| CN113436566B (en) * | 2021-06-22 | 2023-05-02 | 上海中航光电子有限公司 | Display panel and driving method thereof |
| CN114038432A (en) * | 2021-11-18 | 2022-02-11 | 北京小米移动软件有限公司 | Display screen control method, device, equipment, storage medium and program product |
| CN115129098A (en) * | 2022-07-07 | 2022-09-30 | 苏州华星光电技术有限公司 | Temperature control display screen and temperature control method |
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| US8125163B2 (en) * | 2008-05-21 | 2012-02-28 | Manufacturing Resources International, Inc. | Backlight adjustment system |
| JP2009282187A (en) * | 2008-05-21 | 2009-12-03 | Renesas Technology Corp | Liquid crystal driving device |
| CN104091570B (en) * | 2014-06-20 | 2016-10-19 | 京东方科技集团股份有限公司 | Backlight circuit and driving method, backlight module, display device |
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