CN112578588B

CN112578588B - Screen module, display brightness calibration method and device and electronic equipment

Info

Publication number: CN112578588B
Application number: CN201910922788.4A
Authority: CN
Inventors: 马浚原
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2023-01-24
Anticipated expiration: 2039-09-27
Also published as: CN112578588A

Abstract

The disclosure relates to a screen module, a method and a device for calibrating display brightness and electronic equipment. The screen module includes: a liquid crystal layer; a backlight layer disposed in stack with the liquid crystal layer; the sensing layer is stacked with the backlight layer and comprises one or more sensing units, each sensing unit deforms along with the deformation of the backlight layer, and the resistance of the deformed sensing unit changes along with the deformation; the chip assembly is connected to each sensing unit and used for acquiring the resistance of each sensing unit; the matching condition between the resistance of each sensing unit and the preset standard resistance is used for determining an area to be calibrated, which needs to be subjected to brightness calibration.

Description

Screen module, display brightness calibration method and device and electronic equipment

Technical Field

The disclosure relates to the technical field of terminals, in particular to a screen module, a display brightness calibration method and device and electronic equipment.

Background

Currently, a mobile phone terminal such as an electronic device is an indispensable part of a user's life, and the mobile phone terminal is generally moved by the user, which also causes the electronic device to use various natural environments. For the screen module of the electronic device, due to the different thermal expansion coefficients of the film layers included in the backlight device, the backlight may be bent under the high-temperature and high-humidity environment, the display brightness is not uniform, and the display effect is not good.

Disclosure of Invention

The present disclosure provides a screen module, a method and an apparatus for calibrating display brightness, and an electronic device, so as to solve the deficiencies in the related art.

According to a first aspect of an embodiment of the present disclosure, there is provided a screen module including:

a liquid crystal layer;

a backlight layer disposed in a stacked relationship with the liquid crystal layer;

the induction layer and the backlight layer are arranged in a laminated mode, the induction layer comprises one or more induction units, each induction unit deforms along with the deformation of the backlight layer, and the resistance of the induction unit which deforms changes along with the deformation;

the chip assembly is connected to each induction unit and used for acquiring the resistance of each induction unit; the matching condition between the resistance of each sensing unit and the preset standard resistance is used for determining the area to be calibrated, which needs to be subjected to brightness calibration.

Optionally, the backlight layer comprises:

a reflective sheet;

the light guide plate is stacked with the reflecting sheet and is positioned between the reflecting sheet and the liquid crystal layer;

the diffusion sheet is stacked with the light guide plate and is positioned between the light guide plate and the liquid crystal layer;

wherein the sensing layer is positioned between the reflection sheet and the light guide plate.

Optionally, the sensing layer includes:

the sensing units are formed on the polymer film.

Optionally, the surface of the polymer film facing the reflective sheet and the surface facing the light guide plate respectively include one or more sensing units.

Optionally, each sensing unit includes a signal input end and a signal output end;

the screen module further comprises a transmission line, the transmission line is electrically connected with the signal input end and the signal output end of each induction unit, and the transmission line is further connected to the chip assembly.

Optionally, each sensing unit includes a signal input end, a signal output end and a connecting portion, one end of the connecting portion is connected to the signal input end, and the other end of the connecting portion is connected to the signal output end;

wherein, the connecting part is of a spiral structure.

Optionally, the signal input end and the signal output end are led out to the same edge or different edges of the screen module.

According to a second aspect of the embodiments of the present disclosure, there is provided an electronic device including the screen module as described in any one of the embodiments above.

According to a third aspect of the embodiments of the present disclosure, there is provided a calibration method of display luminance, the calibration method including:

acquiring a region to be calibrated, which needs to be subjected to brightness calibration;

and calibrating the brightness of the area to be calibrated, so that the brightness difference of each position on the screen module is less than or equal to a preset threshold value.

Optionally, the performing brightness calibration on the region to be calibrated includes:

acquiring the brightness of the area to be calibrated;

acquiring the average brightness of other areas different from the area to be calibrated on the screen module;

and calibrating the area to be calibrated according to the brightness of the area to be calibrated and the average brightness.

and calibrating the area to be calibrated according to the average brightness.

acquiring the resistance change condition of the sensing unit;

determining a brightness compensation value according to a preset mapping relation and the resistance change condition;

and calibrating the area to be calibrated according to the brightness compensation value.

Optionally, the method further includes:

acquiring the resistance of each sensing unit;

and comparing the resistance with a preset standard resistance of the sensing unit when the sensing unit is not deformed to determine the area to be calibrated.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a calibration apparatus for display luminance, the calibration apparatus including:

the first acquisition module acquires a to-be-calibrated area needing brightness calibration;

and the calibration module is used for performing brightness calibration on the area to be calibrated so that the brightness difference of each position on the screen module is less than or equal to a preset threshold value.

Optionally, the calibration module includes:

the first acquisition unit is used for acquiring the brightness of the area to be calibrated;

the second acquisition unit is used for acquiring the average brightness of other areas on the screen module, which are different from the area to be calibrated;

and the first calibration unit calibrates the area to be calibrated according to the brightness of the area to be calibrated and the average brightness.

Optionally, the calibration module includes:

the third acquisition unit is used for acquiring the average brightness of other areas on the screen module, which are different from the area to be calibrated;

and the second calibration unit calibrates the area to be calibrated according to the average brightness.

Optionally, the calibration module includes:

the fourth acquisition unit is used for acquiring the resistance change condition of the induction unit;

the determining unit is used for determining a brightness compensation value according to a preset mapping relation and the resistance change condition;

and the third calibration unit calibrates the area to be calibrated according to the brightness compensation value.

Optionally, the method further includes:

the second acquisition module is used for acquiring the resistance of each sensing unit;

and the comparison module is used for comparing the resistance with a preset standard resistance of the sensing unit when the sensing unit is not deformed so as to determine the area to be calibrated.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer instructions, which when executed by a processor, provide instructions for implementing the steps of the method as described in any one of the embodiments above.

According to a sixth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method according to any of the above embodiments when executed.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the embodiment, the deformation of the backlight layer can be sensed through the sensing unit, and the deformation sensing unit based on the backlight layer can generate the change of the resistance value, so that the processor of the electronic equipment subsequently provided with the screen module can calibrate the area to be calibrated, the brightness of the screen module is balanced, the uneven brightness caused by the bending of each film layer in the backlight layer is avoided, and the display effect is improved.

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 schematic cross-sectional view of a screen module according to an exemplary embodiment.

Fig. 2 is a partial schematic view of a screen module according to an exemplary embodiment.

Fig. 3 is a schematic cross-sectional view of another screen module according to an exemplary embodiment.

FIG. 4 is a schematic diagram illustrating a structure of a sensing layer according to an exemplary embodiment.

Fig. 5 is a schematic diagram illustrating a structure of a sensing unit according to an exemplary embodiment.

FIG. 6 is a schematic diagram illustrating another sensing layer structure according to an example embodiment.

FIG. 7 is a schematic diagram illustrating a structure of yet another sensing layer according to an example embodiment.

Fig. 8 is a schematic structural diagram of an electronic device according to an exemplary embodiment.

FIG. 9 is a flowchart illustrating a method of calibrating display brightness according to an exemplary embodiment.

Fig. 10 is a block diagram illustrating a calibration apparatus for displaying luminance according to an exemplary embodiment.

Fig. 11 is a block diagram illustrating another display brightness calibration apparatus according to an example embodiment.

Fig. 12 is a block diagram illustrating yet another calibration apparatus for displaying luminance according to an exemplary embodiment.

Fig. 13 is a block diagram illustrating still another display luminance calibration apparatus according to an exemplary embodiment.

Fig. 14 is a block diagram illustrating yet another calibration apparatus for displaying luminance according to an exemplary embodiment.

Fig. 15 is a block diagram illustrating a calibration apparatus for displaying luminance 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. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not 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.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at" \8230; "or" when 8230; \8230; "or" in response to a determination ", depending on the context.

Fig. 1 is a schematic cross-sectional view of a screen module 100 according to an exemplary embodiment. As shown in fig. 1, the screen module 100 may include a liquid crystal layer 1, a backlight layer 2 and an induction layer 3, the backlight layer 2 and the liquid crystal layer 1 are stacked, and the induction layer 3 and the backlight layer 2 are stacked, as shown in fig. 2, the induction layer 3 may include one or more induction units 31, each induction unit 31 may deform along with deformation of the backlight layer 2, and the deformation of the induction unit 31 may also cause a change in resistance of the induction unit 31, where the change in resistance may be used to represent a deformation amount and a deformation position of the backlight layer 2. The sensing layer 3 may be located between the liquid crystal layer 1 and the backlight layer 2, or the backlight layer 2 is located between the liquid crystal layer 1 and the sensing layer 3, and specifically, the sensing layer 3 should be as close to the backlight layer 2 as possible, so as to improve the precision of brightness adjustment.

Further, as shown in fig. 1, the screen module 100 may further include a chip assembly 4, the chip assembly 4 may be connected to each sensing unit 31, so that the chip assembly 4 may obtain a resistance of each sensing unit, and a matching condition between the resistance and a preset standard resistance may be used to determine a to-be-calibrated area on the screen module 100, where the brightness needs to be calibrated, so that a processor of an electronic device subsequently configured with the screen module 100 may calibrate the to-be-calibrated area, and balance the brightness of the screen module 100, which is beneficial to avoiding uneven brightness caused by bending of each film layer in the backlight layer 2, and improving a display effect.

The preset standard resistance may be a resistance of the sensing unit 31 when the sensing unit is deformed. When the resistance of one sensing unit obtained by the chip assembly 4 is equal to the corresponding preset standard resistance, it may be considered that the position corresponding to the sensing unit does not need to be calibrated, and when the resistance of one sensing unit obtained by the chip assembly 4 is equal to the corresponding preset standard resistance, it is considered that the position corresponding to the sensing unit needs to be subjected to brightness calibration, that is, it is determined as the area to be calibrated. The plurality of sensing units may have the same structure, so that the same preset standard resistance may be used to determine the region to be calibrated, or the plurality of sensing units may have different structures, so that the region to be calibrated may be determined by the preset standard resistance corresponding to each sensing unit, which is not limited in this disclosure.

Moreover, the obtained matching condition between the resistance of the sensing unit and the preset standard resistance may be executed by the chip component 4, or in another embodiment, the chip component 4 may send the obtained resistance to a processor of the electronic device configured with the screen module 100, and the processor determines the matching condition between the resistance of the sensing unit and the preset standard resistance, which is not limited by this disclosure.

In this embodiment, as shown in fig. 3, the screen module 100 may further include a frame 5, at least a portion of the backlight layer 2 may be disposed in the frame 5, the backlight layer 2 may include a light source 21, a reflective sheet 22, a light guide plate 23, and a diffusion sheet 24, the light guide plate 23 and the reflective sheet 22 are stacked, the reflective sheet 22 is closer to a bottom surface of the frame 5 than the light guide plate 23, the light guide plate 23 is located between the reflective sheet 22 and the liquid crystal layer 1, the diffusion sheet 24 is stacked on the light guide plate 23, and the diffusion sheet 24 is located between the light guide plate 23 and the liquid crystal layer 1. As shown in fig. 3, the light source 21 may be disposed in a side-in type, that is, the light source 21 is located at a side surface of the screen module 100, and the light is guided through the light guide plate 23, or in other embodiments, the light source 21 may also be in a dot matrix type and located below the light guide plate 23, so that the light is directly incident into the light guide plate 23.

As shown in fig. 3, the screen module 100 may further include a flexible printed circuit 6, and the flexible printed circuit 6 may connect the chip assembly 4 and each of the sensing units and the light source 21. Of course, as shown in fig. 3, the screen module 100 may be packaged by a COF (Chip On Flex) packaging technology, and in other embodiments, a COP (Chip On Pi) packaging technology may also be used, which is not limited by the disclosure. Further, as shown in fig. 3, the sensing layer 3 is located between the reflective sheet 22 and the light guide plate 23, so that the sensing layer 3 and the light source 21 can be relatively close to each other, the light source 21 and the sensing layer 3 can be led out through the same flexible circuit board, and the structure is simplified.

In the above embodiments, as shown in fig. 4, the sensing layer 3 may further include a polymer film 32, and each sensing unit 31 is formed on the polymer film 32. Wherein the polymer film 32 may include PI (Polyimide) or PET (polyethylene terephthalate) or COP (cyclic Olefin Polymers), the sensing unit 31 may be formed on the polymer film 32 by a sputtering and etching process, and the sensing unit 31 may be made of ITO (Indium tin oxide) material.

Further, a surface of the polymer film 32 facing the reflective sheet 22 and a surface facing the light guide plate 23 may include one or more sensing units 31, respectively. Still referring to fig. 4, taking the surface of the polymer film 32 facing the light guide plate 23 as an example, the surface may be formed with 4 sensing units, each sensing unit corresponding to one side edge of the polymer film 32, so that the deformation of the backlight layer 2 in the left-right direction can be sensed by two sensing units 21 in the left-right direction in fig. 4, and the deformation of the backlight layer 2 in the up-down direction can be sensed by two sensing units 21 in the up-down direction in fig. 4.

Based on the technical solution of the present disclosure, as shown in fig. 4, each sensing unit 31 may include a signal input end 311 and a signal output end 312, the screen module 100 may further include a transmission line (not shown in the figure), the transmission line is connected to both the signal input end 311 and the signal output end 312 of each sensing unit 31, and the transmission line is further connected to the flexible circuit board 6, so that the transmission line is electrically connected to the chip component 4, and further, each sensing unit may also be electrically connected to the chip component 4.

The following will explain in detail the specific structure of the sensing unit 31 described in each of the above embodiments:

as shown in fig. 5, the sensing unit 31 may further include a connection portion 313, one end of the connection portion 313 is connected to the signal input end 311, and the other end is connected to the signal output end 312, and the connection portion 313 is disposed in a spiral structure. Based on this, when the backlight layer 2 is deformed, the connection portions 313 having the spiral structure may be connected to each other, thereby changing the resistance of the sensing unit 31.

In one embodiment, as shown in fig. 4, the signal input terminal 311 and the signal output terminal 312 may be led out from the same edge of the screen module 100, so that the connection portion 313 is formed by spiraling in a direction toward the signal input terminal 311 and a direction toward the signal output terminal 312. In another embodiment, as shown in fig. 6 and 7, the signal input terminal 311 and the signal output terminal 312 may also be led out from different edges of the screen module 100, and the spiral direction of the connection portion 313 may be changed, which may be designed as needed, and the disclosure does not limit this.

For the screen module 100 described in the foregoing embodiments, the present disclosure also provides an electronic device 200 shown in fig. 8, where the electronic device 200 may include the screen module 100 described in any of the foregoing embodiments, and the screen module 100 may be used to show image information.

Similarly, based on the screen module 100, the present disclosure further provides a calibration method for display brightness, as shown in fig. 9, the calibration method may include the following steps:

in step 901, a region to be calibrated, where brightness calibration is required, is obtained.

In an embodiment, the chip assembly 4 configured by the screen module 100 may determine the area to be calibrated according to the obtained matching condition between the resistance of the sensing unit and the preset standard resistance, and the chip assembly 4 sends the position information of the area to be calibrated to a memory of the electronic device; or, in another embodiment, the processor may obtain the resistance of each sensing unit, and then compare the resistance with a preset standard resistance when the sensing unit is not deformed, thereby determining the sensing unit that is deformed, and further determining the area to be calibrated.

In the above embodiment, the resistance may be calculated from the current flowing through the sensing unit 31 and the voltages applied to the signal input terminal 311 and the signal output terminal 312. The deformation position of the backlight layer 2 can be known according to the position of the sensing unit generating the resistance change, for example, when the resistance value of the sensing unit close to the left edge of the electronic device changes, it can be considered that the left side of the backlight layer in the electronic device is deformed, and thus the area corresponding to the left side sensing unit can be determined as the area to be calibrated on the display panel.

In step 902, brightness calibration is performed on the area to be calibrated, so that a brightness difference of each position on the screen module is less than or equal to a preset threshold.

In an embodiment, the brightness of the area to be calibrated may be obtained, and the average brightness of the other areas different from the area to be calibrated on the screen module 100 may be obtained, and then the brightness of the area to be calibrated is calibrated according to the brightness of the area to be calibrated and the average brightness of the other areas. Wherein, the brightness of the area to be calibrated can be calibrated to be the same as the average brightness of other areas; or, the average brightness of other areas may also be calibrated to be the same as the brightness of the area to be calibrated; alternatively, the brightness of the region to be calibrated and the average brightness of the other region may be calibrated to be other brightness between the brightness of the region to be calibrated and the average brightness.

In another embodiment, the average brightness of other areas on the screen module, which are different from the area to be calibrated, may be obtained, and then the brightness of the area to be calibrated may be calibrated according to the average brightness. For example, the luminance of the area to be calibrated may be calibrated to be equal to the average luminance; alternatively, the brightness of the area to be calibrated may be calibrated to be less than a threshold value from the average brightness.

In yet another embodiment, the resistance variation of the sensing unit may be obtained, and the brightness compensation value may be determined according to the resistance variation and the preset mapping relationAnd calibrating the brightness of the area to be calibrated according to the brightness compensation value. The preset mapping relationship may include a variation Δ of the resistance value ₁ And the luminance compensation value delta ₂ And the preset mapping relationship can be obtained through a plurality of tests in the debugging stage of the electronic equipment. For example, the resistance change condition of each sensing unit may be obtained, the brightness of the area to be calibrated is adjusted, so that the brightness difference between the brightness of the area to be calibrated and the brightness of other areas on the screen module 100 is smaller than a preset threshold, and the difference between the brightness before and after the brightness adjustment is used as the brightness compensation value. The above mapping relationship can be obtained when the above relationship is repeated under various environments.

More specifically, the deformation amplitude of the backlight layer 2 can be known according to the variation amplitude of the resistance, and the deformation amplitude is related to the brightness of the area to be calibrated. For example, when the variation amplitude of the resistance value of the sensing unit is large, the deformation amplitude of the current backlight layer 2 can be considered to be large, so that the luminance variation of the area to be calibrated is large, and the corresponding luminance compensation value is large; when the variation range of the resistance value of the sensing unit is small, the deformation range of the current backlight layer 2 can be considered to be small, so that the luminance variation of the area to be calibrated is small, and the corresponding luminance compensation value is small.

In addition, the deformation direction of the backlight layer 2 can be known according to the variation trend of the resistance, and the deformation direction of the backlight layer also affects the brightness of the area to be calibrated to a certain extent. For example, when the resistances of the sensing units on the two opposite sides of the electronic device are gradually increased or decreased, the backlight layer 2 may be considered to be protruded in a direction perpendicular to the screen module, and the luminance of the area to be calibrated is increased compared with the luminance of the other areas, so that the luminance compensation value may be recorded as a negative value, and the luminance of the area to be calibrated and the luminance compensation value that is the negative value may be added in the calibration stage to obtain the calibrated luminance of the area to be calibrated; or, when the resistances of the sensing units on the two opposite sides of the electronic device are gradually increased or decreased, the backlight layer 2 may be regarded as being recessed in a direction perpendicular to the screen module, and the brightness of the to-be-calibrated region is lower than the brightness of the other regions, so that the brightness compensation value may be recorded as a positive value, and the brightness of the to-be-calibrated region may be added to the brightness compensation value that is the positive value in the calibration stage to obtain the calibrated brightness of the to-be-calibrated region. The corresponding relationship between the variation trend and the deformation direction can be obtained according to a plurality of tests, and the disclosure is not particularly limited.

Corresponding to the embodiment of the calibration method for the display brightness, the disclosure also provides an embodiment of a calibration device for the display brightness.

Fig. 10 is a block diagram illustrating a display brightness calibration apparatus according to an exemplary embodiment, which can be applied to the screen module 100 described in any of the above embodiments. Referring to fig. 10, the apparatus comprises a first acquisition module 101 and a calibration module 102, wherein:

the first obtaining module 101 obtains a region to be calibrated, where brightness calibration is required.

The calibration module 102 is configured to perform brightness calibration on the area to be calibrated, so that a brightness difference of each position on the screen module is smaller than or equal to a preset threshold.

As shown in fig. 11, fig. 11 is a block diagram of another calibration apparatus for displaying luminance according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and the calibration module 102 may include a first obtaining unit 1021, a second obtaining unit 1022, and a first calibration unit 1023, wherein:

the first obtaining unit 1021 obtains the brightness of the area to be calibrated.

The second obtaining unit 1022 obtains the average brightness of other areas of the screen module, which are different from the area to be calibrated.

The first calibration unit 1023 calibrates the area to be calibrated according to the brightness of the area to be calibrated and the average brightness.

As shown in fig. 12, fig. 12 is a block diagram of another calibration apparatus for displaying luminance according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and the calibration module 102 includes a third obtaining unit 1024 and a second calibration unit 1025, wherein:

the third obtaining unit 1024 obtains the average brightness of other areas on the screen module, which are different from the area to be calibrated.

And the second calibration unit 1025 calibrates the area to be calibrated according to the average brightness.

As shown in fig. 13, fig. 13 is a block diagram of another calibration apparatus for displaying luminance according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and the calibration module 102 includes:

a fourth obtaining unit 1026 for obtaining a resistance variation condition of the sensing unit;

the determining unit 1027 determines a brightness compensation value according to a preset mapping relationship and the resistance change condition;

a third calibration unit 1028, calibrating the area to be calibrated according to the brightness compensation value.

As shown in fig. 14, fig. 14 is a block diagram illustrating a further calibration apparatus for displaying luminance according to an exemplary embodiment, which is based on the foregoing embodiment shown in fig. 10, and the apparatus further includes a second obtaining module 103 and a comparing module 104, wherein:

a second obtaining module 103, which obtains the resistance of each sensing unit;

and the comparison module 104 is used for comparing the resistance with a preset standard resistance of the sensing unit when the sensing unit is not deformed so as to determine the area to be calibrated.

It should be noted that: the structures of the second obtaining module 103 and the comparing module 104 in the apparatus embodiment shown in fig. 14 may also be included in any one of the apparatus embodiments in fig. 11 to 13, and the disclosure is not limited thereto.

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 elaborated here.

For the device embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.

Correspondingly, the present disclosure also provides a calibration apparatus for display brightness, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: acquiring a region to be calibrated, which needs to be subjected to brightness calibration; and performing brightness calibration on the area to be calibrated to enable the brightness difference of each position on the screen module to be less than or equal to a preset threshold value.

Accordingly, the present disclosure also provides a terminal comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured for execution by the one or more processors to include instructions for: acquiring a region to be calibrated, which needs to be subjected to brightness calibration; and calibrating the brightness of the area to be calibrated, so that the brightness difference of each position on the screen module is less than or equal to a preset threshold value.

Fig. 15 is a block diagram illustrating a calibration apparatus 1500 for displaying luminance according to an exemplary embodiment. For example, the apparatus 1500 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. 15, the apparatus 1500 may include one or more of the following components: processing components 1502, memory 1504, power components 1506, multimedia components 1508, audio components 1510, input/output (I/O) interfaces 1512, sensor components 1514, and communication components 1516.

The processing component 1502 generally controls overall operation of the device 1500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1502 may include one or more processors 1520 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 1502 may include one or more modules that facilitate interaction between processing component 1502 and other components. For example, processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.

The memory 1504 is configured to store various types of data to support operations at the apparatus 1500. Examples of such data include instructions for any application or method operating on the device 1500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1504 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 power supply component 1506 provides power to the various components of the device 1500. The power supply components 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1500.

The multimedia component 1508 includes a screen that provides an output interface between the device 1500 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, multimedia component 1508 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 apparatus 1500 is in an operation 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.

Audio component 1510 is configured to output and/or input audio signals. For example, the audio component 1510 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1500 is in an operating 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 1504 or transmitted via the communication component 1516. In some embodiments, audio component 1510 also includes a speaker for outputting audio signals.

The I/O interface 1512 provides an interface between the processing component 1502 and peripheral interface modules, which can 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 1514 includes one or more sensors for providing status assessment of various aspects of the apparatus 1500. For example, the sensor assembly 1514 can detect an open/closed state of the device 1500, the relative positioning of components, such as a display and keypad of the device 1500, the sensor assembly 1514 can also detect a change in position of the device 1500 or a component of the device 1500, the presence or absence of user contact with the device 1500, orientation or acceleration/deceleration of the device 1500, and a change in temperature of the device 1500. The sensor assembly 1514 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 1514 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 1514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1516 is configured to facilitate wired or wireless communication between the apparatus 1500 and other devices. The device 1500 may access a wireless network based on a communication standard, such as WiFi,2G or 3g,4g LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 1516 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1516 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 1500 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 1504 comprising instructions, executable by the processor 1520 of the apparatus 1500 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 disclosure 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 in 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 that have been 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

1. A screen module, comprising:

a liquid crystal layer;

a backlight layer disposed in a stacked relationship with the liquid crystal layer; the backlight layer comprises a reflecting sheet, a light guide plate and a diffusion sheet; the light guide plate and the reflecting sheet are arranged in a stacked mode, and the light guide plate is located between the reflecting sheet and the liquid crystal layer; the diffusion sheet is arranged in a stacking mode with the light guide plate, and the diffusion sheet is located between the light guide plate and the liquid crystal layer;

the induction layer and the backlight layer are arranged in a laminated mode, the induction layer comprises one or more induction units, each induction unit deforms along with the deformation of the backlight layer, and the resistance of the induction unit which deforms changes along with the deformation; wherein the sensing layer is positioned between the reflecting sheet and the light guide plate; each induction unit comprises a signal input end, a signal output end and a connecting part, wherein one end of the connecting part is connected with the signal input end, and the other end of the connecting part is connected with the signal output end; wherein the connecting part is of a spiral structure; the signal input end and the signal output end are led out to the same edge or different edges of the screen module;

the chip assembly is connected to each sensing unit and used for acquiring the resistance of each sensing unit; the matching condition between the resistance of each sensing unit and the preset standard resistance is used for determining the area to be calibrated, which needs to be subjected to brightness calibration.

2. A screen module as recited in claim 1, wherein the sensing layer comprises:

the sensing units are formed on the polymer film.

3. A screen module as recited in claim 2, wherein a surface of the polymer film facing the reflective sheet and a surface facing the light guide plate each include one or more sensing elements.

4. The screen module of claim 1,

5. An electronic device, characterized in that it comprises a screen module according to any one of claims 1-4.

6. A calibration method for display brightness, which is applied to the screen module set according to any one of claims 1-4, is characterized in that the calibration method comprises the following steps:

7. The calibration method according to claim 6, wherein the calibrating the brightness of the region to be calibrated comprises:

acquiring the brightness of the area to be calibrated;

8. The calibration method according to claim 6, wherein the calibrating the brightness of the region to be calibrated comprises:

and calibrating the area to be calibrated according to the average brightness.

9. The calibration method according to claim 6, wherein the calibrating the brightness of the region to be calibrated comprises:

acquiring the resistance change condition of the sensing unit;

10. The calibration method of claim 6, further comprising:

acquiring the resistance of each sensing unit;

and comparing the resistance with a preset standard resistance of the sensing unit when the sensing unit is not deformed so as to determine the area to be calibrated.

11. A calibration device for display brightness, applied to the screen module according to any one of claims 1 to 4, wherein the calibration device comprises:

the first acquisition module is used for acquiring a to-be-calibrated area needing brightness calibration;

12. The calibration device of claim 11, wherein the calibration module comprises:

the first acquisition unit acquires the brightness of the area to be calibrated;

13. The calibration device of claim 11, wherein the calibration module comprises:

14. The calibration device of claim 11, wherein the calibration module comprises:

15. The calibration device of claim 11, further comprising:

16. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 6-10.

17. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to carry out the steps of the method according to any one of claims 6-10 when executed.