CN113763893A

CN113763893A - Backlight adjusting method, device, system and computer program product

Info

Publication number: CN113763893A
Application number: CN202111096335.4A
Authority: CN
Inventors: 黄宁
Original assignee: China Mobile Communications Group Co Ltd; MIGU Digital Media Co Ltd; MIGU Culture Technology Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; MIGU Digital Media Co Ltd; MIGU Culture Technology Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-12-07

Abstract

The invention discloses a backlight adjusting method, device, system and computer program product, which are applied to a backlight brightness adjuster of an ink screen system, wherein the ink screen system comprises: the system comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the optical sensor is arranged under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively; the backlight adjusting method comprises the following steps: determining respective ambient light indices corresponding to the different regions; and if the condition that the illumination of the ink-wash screen is uneven is determined according to the ambient light indexes corresponding to the different areas, performing backlight adjustment on at least one area in the different areas based on at least one ambient light index. The invention improves the accuracy of the backlight adjustment of the ink-water screen, and further improves the eye protection effect of the ink-water screen.

Description

Backlight adjusting method, device, system and computer program product

Technical Field

The present invention relates to the field of ink-wash screens, and in particular, to a method, an apparatus, a system, and a computer program product for adjusting backlight.

Background

With the rapid development of science and technology, the electronic equipment is more and more widely used. However, the light-emitting screen of the electronic device may cause damage to the eyes of the user, and therefore, the display screen of the electronic device may be an ink-jet screen to protect the eyes of the user.

At present, the ink-jet screen backlight system can achieve the brightness adjustment effect, however, the light sensor in the ink-jet screen backlight system only receives the vertically projected ambient light. In an actual use scene, the ambient light sources are not all direct light, and a considerable part of light sources are shielded when people read, on the basis, the screen brightness on the ink screen can present a local shadow shielding part, and the traditional ink screen is only provided with one optical sensor, so that the ambient light index calculated by the optical sensor can only represent the light sensation of a part of the ink screen but cannot represent the whole light sensation of the ink screen, namely, the calculated ambient light index is not completely the same as the light sensation of each position of the ink screen. For example, under the condition that the light sensor can receive the light emitted by the light source, the ambient light of the shadow part of the ink screen is smaller than the ambient light index calculated by the light sensor, and at the moment, the overall backlight adjustment of the ink screen is performed based on the ambient light index calculated by the light sensor, so that the backlight adjustment of the ink screen is not accurate enough, and the eye protection effect of the ink screen is further reduced.

Disclosure of Invention

The invention mainly aims to provide a backlight adjusting method, device, system and computer program product, aiming at improving the accuracy of backlight adjustment of an ink-water screen and further improving the eye protection effect of the ink-water screen.

In order to achieve the above object, the present invention provides a backlight adjusting method applied to a backlight brightness adjuster of an ink-jet screen system, wherein the ink-jet screen system comprises: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively;

the backlight adjusting method comprises the following steps:

determining respective ambient light indices corresponding to the different regions;

and if the condition that the illumination of the ink-wash screen is uneven is determined according to the ambient light indexes corresponding to the different areas, performing backlight adjustment on at least one area in the different areas based on at least one ambient light index.

Optionally, the light sensors comprise a left set of light sensors and a right set of light sensors;

the left side light sensor set and the right side light sensor set are respectively arranged on the left side and the right side of the ink-water screen.

Optionally, the step of determining each ambient light index corresponding to the different regions comprises:

acquiring a set of ambient light indices of the light sensor;

dividing the ink-wash screen into different regions based on the set of ambient light indices;

determining, based on the set of ambient light indices, each ambient light index for the different region.

Optionally, the step of adjusting the backlight of at least one of the different regions based on at least one of the ambient light indexes comprises:

comparing at least one of the ambient light indices to a preset threshold;

and based on the comparison result, carrying out backlight adjustment on the micro-light regions in the different regions or carrying out backlight adjustment on the weak-light regions in the different regions.

Optionally, the step of backlight adjusting the micro-light regions in the different regions comprises:

acquiring a first area ambient light index of a micro-light area in the plurality of areas;

performing difference operation on the first preset threshold and the first area ambient light index to obtain a light index compensation value;

determining a backlight brightness value based on the light index compensation value and a preset backlight brightness value unit;

and carrying out backlight adjustment on the dim light area based on the backlight brightness value.

Optionally, the step of backlight adjusting the weak light regions in the different regions includes:

performing gray scale test on the weak light areas in the plurality of areas to obtain luminous flux;

performing content test on the weak light area to obtain an average gray scale value;

fitting calculation is carried out on the luminous flux and the average gray scale value to obtain a fitting gray scale value;

and carrying out backlight adjustment on the low-light area based on the fitted gray value.

Further, to achieve the above object, the present invention also provides a backlight adjusting apparatus comprising: a memory, a processor and a backlight adjusting program stored on the memory and executable on the processor, the backlight adjusting program when executed by the processor implementing the steps of the backlight adjusting method as described above.

In addition, to achieve the above object, the present invention further provides a backlight adjusting system, wherein the ink-and-water screen system includes: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively;

the backlight brightness adjuster includes: a memory, a processor and a backlight adjusting program stored on the memory and executable on the processor, the backlight adjusting program when executed by the processor implementing the steps of the backlight adjusting method as described above.

Furthermore, to achieve the above object, the present invention also provides a computer program product comprising a computer program which, when being executed by a processor, realizes the steps of the backlight adjusting method as described above.

Further, to achieve the above object, the present invention also provides a computer readable storage medium having a backlight adjusting program stored thereon, which when executed by a processor, implements the steps of the backlight adjusting method as described above.

The invention provides a backlight adjusting method, a device, a system and a computer program product, wherein the backlight adjusting method is applied to a backlight brightness adjuster of an ink screen system, and the ink screen system comprises the following steps: the system comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the optical sensor is arranged under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively, and determines each ambient light index corresponding to different areas; and if the condition that the illumination of the ink-wash screen is uneven is determined according to the ambient light indexes corresponding to the different areas, performing backlight adjustment on at least one area in the different areas based on at least one ambient light index. By the mode, the ink screen system is provided with the optical sensors in different areas, so that the ambient light indexes of all the areas on the ink screen can be detected, the ink screen can be divided based on the ambient light indexes to respectively perform backlight adjustment on the divided areas, and compared with the whole ink screen, the backlight adjustment accuracy of the ink screen can be improved, and the eye protection effect of the ink screen is improved.

Drawings

FIG. 1 is a schematic diagram of shading in accordance with an embodiment of the present invention;

fig. 2 is a schematic diagram of a terminal structure of a hardware operating environment according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a backlight adjusting method according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of region division according to an embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the embodiment of the invention is as follows: the method comprises the steps that an ink-wash screen system is improved so that the ink-wash screen system comprises an ink-wash screen and a plurality of optical sensors, the ink-wash screen is a screen supporting local backlight adjustment, the optical sensors are arranged at different positions under the ink-wash screen to obtain a plurality of ambient light indexes of the optical sensors, and one optical sensor corresponds to one ambient light index; dividing the ink-wash screen into a plurality of areas based on a plurality of ambient light indexes; determining a plurality of area ambient light indexes corresponding to the plurality of areas based on the plurality of ambient light indexes, and performing backlight adjustment on the plurality of areas based on the plurality of area ambient light indexes, wherein one area corresponds to one area ambient light index. By the mode, the ink screen is provided with the plurality of optical sensors, so that the ambient light indexes of all the areas on the ink screen can be detected, the ink screen can be divided based on the ambient light indexes to respectively perform backlight adjustment on the divided areas, and compared with the whole ink screen, the backlight adjustment method and the backlight adjustment device can improve the accuracy of the backlight adjustment of the ink screen and further improve the eye protection effect of the ink screen.

The embodiment of the invention considers that in the existing related scheme, the ink-wash screen backlight system can really achieve the brightness adjusting effect, however, the light sensor in the ink-wash screen backlight system only receives the vertically projected ambient light. In an actual use scenario, the ambient light source is not all direct light, and a substantial part of the light source is blocked when a person reads, specifically, refer to fig. 1, where fig. 1 is a shadow diagram according to an embodiment of the present invention. Based on this, the screen brightness on the ink-water screen will present a local shadow shielding part, and the traditional ink-water screen is only provided with one light sensor, so the ambient light index calculated by the light sensor is different from the light sensation of the actual screen. For example, when the light sensor can receive the light source, the ambient light of the shadow portion of the actual screen is smaller than the ambient light index calculated by the light sensor, and at this time, the backlight adjustment of the whole ink-jet screen is performed based on the ambient light index calculated by the light sensor, which may result in the inaccurate backlight adjustment of the ink-jet screen, and further reduce the eye protection effect of the ink-jet screen.

Referring to fig. 2, fig. 2 is a schematic diagram of a terminal structure of a hardware operating environment according to an embodiment of the present invention.

The terminal in the embodiment of the present invention is a backlight adjusting device, and the backlight adjusting device may be a mobile phone, a reader, a tablet computer, a PC (personal computer), a microcomputer, a notebook computer, a server, or other terminal devices having a processing function.

As shown in fig. 2, the terminal may include: a processor 1001, such as a CPU (Central Processing Unit), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the terminal configuration shown in fig. 2 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 2, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a backlight adjusting program.

In the terminal shown in fig. 2, a backlight brightness adjuster applied to an ink-jet screen system, the ink-jet screen system includes: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected to the backlight brightness adjuster and the signal output terminal of each of the optical sensors, respectively, and the processor 1001 may be configured to call a backlight adjustment program stored in the memory 1005, and perform the following operations:

Further, the light sensors comprise a left set of light sensors and a right set of light sensors;

Further, the plurality of ambient light indexes includes a plurality of left ambient light indexes and a plurality of right ambient light indexes, and the processor 1001 may be configured to call the backlight adjusting program stored in the memory 1005, and further perform the following operations:

acquiring a set of ambient light indices of the light sensor;

Further, the plurality of light sensors includes a plurality of left-side light sensors, the plurality of left-side ambient light indices are detected by the plurality of left-side light sensors, and the processor 1001 may be configured to invoke a backlight adjustment program stored in the memory 1005, and further perform the following operations:

comparing at least one of the ambient light indices to a preset threshold;

Further, the processor 1001 may be configured to call a backlight adjustment program stored in the memory 1005, and further perform the following operations:

Based on the above hardware structure, various embodiments of the backlight adjusting method of the present invention are provided.

The invention provides a backlight adjusting method.

Referring to fig. 3, fig. 3 is a flowchart illustrating a backlight adjusting method according to a first embodiment of the invention.

In this embodiment, the backlight adjusting method is applied to a backlight brightness adjuster of an ink-jet screen system, and the ink-jet screen system includes: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively, and the backlight adjusting method comprises the following steps:

step S10, determining each ambient light index corresponding to the different areas;

in the present embodiment, the backlight adjusting method is applied to a backlight brightness adjuster of an ink-and-water screen system, which is subordinate to the above-mentioned backlight adjusting device, and the backlight adjusting device may be a mobile phone, a reader, a tablet computer, a PC (personal computer), a microcomputer, a notebook computer, a server, or other terminal devices having a processing function.

In this embodiment, the respective ambient light indices corresponding to the different regions are determined. Specifically, a plurality of ambient light indexes of a plurality of light sensors are obtained, and one light sensor corresponds to one ambient light index. The light sensor is used for detecting an ambient light index of ambient light, the ambient light index is a light sensing value of the light sensor, and the light sensor can generate a unique light sensing value (a brightness value and the ambient light index) under the illumination of the same brightness.

Specifically, each of the plurality of light sensors obtains a plurality of ambient light indices by performing a masking algorithm on the projected light. One light sensor corresponds to one index of ambient light, and the index of ambient light for each light sensor may be the same or different, depending on the illumination projected onto the ink-wash screen.

It should be noted that the plurality of sensors may be disposed on both sides of the ink-wash screen, and the plurality of optical sensors disposed on both sides of the ink-wash screen include two portions, one portion is disposed on the left side of the ink-wash screen, and the other portion is disposed on the right side of the ink-wash screen. The number of photosensors disposed on the left side of the ink screen is generally the same as the number of photosensors disposed on the right side of the ink screen, but may be set as needed. Based thereon, the plurality of light sensors includes a plurality of left side light sensors and a plurality of right side light sensors. In addition, the multiple sensors may also be deployed at other locations of the ink-wash screen as desired.

In addition, it should be noted that the plurality of optical sensors disposed on both sides of the ink-wash screen may be equal to the ink-wash screen in height, that is, the two sides of the ink-wash screen are respectively disposed with a predetermined optical sensor with precise height, and the total length of each optical sensor on each side is respectively consistent with the height of the ink-wash screen, so as to calculate the positions of different brightness areas of the ink-wash screen in the following. It can be understood that, because the illumination sheltering scene is almost vertically sheltered, preset optical sensors may be arranged in a row along the height of the screen in a seamless connection manner, and an optical sensor bar having the same height as the screen may also be used, where the optical sensor bar is a device integrating multiple optical sensors.

The number of each side light sensor is acquired in the following mode: acquiring the height of the ink screen and the length of the optical sensor; and dividing the height of the ink screen and the length of the optical sensors to obtain the number of the optical sensors on each side.

In one embodiment, the plurality of sensors includes a plurality of left side light sensors and a plurality of right side light sensors, and the step S10 includes:

a plurality of left ambient light indices for the plurality of left light sensors are obtained, and a plurality of right ambient light indices for the plurality of right light sensors are obtained. The number of the left side ambient light indexes corresponds to the number of the left side light sensors one by one, and the number of the right side ambient light indexes corresponds to the number of the right side light sensors one by one.

In another embodiment, the plurality of light sensors includes a left light sensor bar and a right light sensor bar, and the step S10 includes:

a plurality of left ambient light indices of the left light sensor bar are obtained, and a plurality of right ambient light indices of the right light sensor bar are obtained. The left light sensing strip is arranged on the left side of the ink screen, and the right light sensing strip is arranged on the right side of the ink screen. The number of the left side ambient light indexes corresponds to the number of the photosensitive units of the left side light sensing strips one by one, and the number of the right side ambient light indexes corresponds to the number of the photosensitive units of the right side light sensing strips one by one.

In some embodiments, before the step S10, the backlight adjusting method further includes:

when the ink screen is detected to be opened, the plurality of light sensors are started to acquire a plurality of ambient light indexes of the plurality of light sensors. It can be understood that when the ink screen is turned on, i.e. viewed by a user, the plurality of optical sensors disposed on both sides of the ink screen are turned on again, so that the plurality of optical sensors are turned off in an idle time, thereby reducing power consumption.

Further, before the step S10, the backlight adjusting method further includes:

acquiring the rotation state of the ink screen; determining the plurality of light sensors based on the rotation state. It will be appreciated that the apparatus in which the ink screen is deployed may be rotated, that is, the user may view the ink screen vertically, or may view the ink screen in parallel. The optical sensors are arranged on four sides of the ink screen, the sensors on two sides of the ink screen are used in each rotating scene, and the two sides of the ink screen use the current rotating state as reference, namely the left side and the right side.

Step S20, if it is determined that the ink-wash screen has uneven illumination according to the ambient light indexes corresponding to the different areas, performing backlight adjustment on at least one of the different areas based on at least one of the ambient light indexes.

In this embodiment, if it is determined that the ink-wash screen has uneven illumination according to the ambient light indexes corresponding to the different areas, the backlight adjustment is performed on at least one of the different areas based on at least one of the ambient light indexes. Specifically, the ink-wash screen is divided into a plurality of areas based on a plurality of ambient light indexes, then, a plurality of area ambient light indexes corresponding to the areas are determined based on the plurality of ambient light indexes, and backlight adjustment is performed on the areas based on the area ambient light indexes.

Wherein, a plurality of regions can include 1 or a plurality of, and is the same at a plurality of environment light index homogeneous phases, then a plurality of regions are 1, and the projection illumination intensity of whole china ink screen is the same promptly, and when a plurality of environment light index were inequality, then a plurality of regions are a plurality of, and the projection illumination intensity of whole china ink screen promptly is inequality, consequently, need divide the china ink screen, obtains a plurality of regions of different environment light index.

Specifically, whether a plurality of ambient light indexes are the same is judged; if the color values are the same, the ink screen is not divided, the steps of determining a plurality of area ambient light indexes corresponding to a plurality of areas based on the plurality of ambient light indexes and adjusting the backlight of the areas based on the area ambient light indexes are directly carried out, so that the ambient light index of the ink screen is determined, and the backlight of the ink screen is adjusted based on the ambient light index of the ink screen; and if not, dividing the ink-wash screen into a plurality of areas based on a plurality of ambient light indexes.

It should be noted that, whether the plurality of ambient light indexes are the same or not may be determined together by the left ambient light index and the right ambient light index, or may be determined separately by the left ambient light index and the right ambient light index.

In one embodiment, the plurality of ambient light indices includes a plurality of left ambient light indices and a plurality of right ambient light indices, and the step of dividing the ink-wash screen into regions based on the plurality of ambient light indices includes:

comparing the plurality of left side ambient light indexes to determine a plurality of left side positions with different ambient light indexes; comparing the plurality of right side ambient light indexes to determine a plurality of right side positions with different ambient light indexes; dividing the ink-water screen into a plurality of regions based on the plurality of left positions and the plurality of right positions.

It should be noted that, when the ink-jet screen is divided, the ambient light index in each of several areas of the ink-jet screen is the same, and therefore, the area ambient light index may be the ambient light index of the area. Of course, if the ambient light indexes in each of the plurality of regions are different, the ambient light indexes in each region are averaged to obtain the regional ambient light index.

In an embodiment, the plurality of ambient light indices includes a plurality of left ambient light indices and a plurality of right ambient light indices, and the step of determining a number of zone ambient light indices corresponding to the number of zones based on the plurality of ambient light indices includes:

if the left ambient light indexes and the right ambient light indexes of one of the areas are the same, determining the area ambient light index of one of the areas as the left ambient light index until determining the area ambient light indexes corresponding to the areas. If the left ambient light indexes and the right ambient light indexes of one of the regions are different, determining that the regional ambient light index of one of the regions is an average value of the left ambient light indexes and the right ambient light indexes until determining the regional ambient light indexes corresponding to the regions.

In some embodiments, the step of backlighting the number of zones based on the number of zones ambient light index comprises:

comparing the plurality of regional ambient light indexes with a first preset threshold and a second preset threshold, wherein the first preset threshold is larger than the second preset threshold; if one of the plurality of regional ambient light indexes is smaller than or equal to a first preset threshold and larger than a second preset threshold, starting a backlight mode of a micro-light region in the plurality of regions, wherein the micro-light region is a region of which the regional ambient light index is smaller than or equal to the first preset threshold and larger than the second preset threshold, and the backlight mode is used for performing backlight adjustment on the micro-light region; and if one of the plurality of regional ambient light indexes is smaller than or equal to a second preset threshold, starting an eye protection mode of a weak light region in the plurality of regions, wherein the weak light region is a region of which the regional ambient light index is smaller than or equal to the second preset threshold, and the eye protection mode is used for carrying out backlight adjustment on the weak light region.

The first preset threshold value can be set according to actual conditions, and is a zero boundary point of the normal brightness of the ink-wash screen, for example, the first preset threshold value is 5000; the second preset threshold may be set according to actual conditions, for example, the second preset threshold is 2000.

Specifically, whether the ambient light index of each area is smaller than or equal to a first preset threshold value is judged, and if yes, a backlight mode of the area is turned on; and judging whether the ambient light index of each area is less than or equal to a second preset threshold value, and if so, starting a light sensation algorithm to start an eye protection mode. Further, whether the ambient light index of each region is larger than a first preset threshold value is judged, if yes, the backlight mode of the region is closed, namely, the backlight is closed.

The embodiment of the invention provides a backlight adjusting method, which is applied to a backlight brightness adjuster of an ink screen system, wherein the ink screen system comprises the following steps: the system comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the optical sensor is arranged under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively, and determines each ambient light index corresponding to different areas; and if the condition that the illumination of the ink-wash screen is uneven is determined according to the ambient light indexes corresponding to the different areas, performing backlight adjustment on at least one area in the different areas based on at least one ambient light index. By the mode, the ink screen system is provided with the optical sensors in different areas, so that the ambient light indexes of the areas on the ink screen can be detected, the ink screen can be divided based on the ambient light indexes, the divided areas are respectively subjected to backlight adjustment, and the backlight adjustment is performed on the whole ink screen.

Further, based on the above first embodiment, a second embodiment of the backlight adjusting method of the present invention is proposed.

In this embodiment, the light sensors include a left light sensor set and a right light sensor set; the left side light sensor set and the right side light sensor set are respectively arranged on the left side and the right side of the ink-water screen.

Wherein the left set of light sensors comprises a plurality of light sensors and the right set of light sensors comprises a plurality of light sensors.

Based on the structure of the optical sensor, the step S10 includes:

step A11, acquiring an ambient light index set of the light sensor;

in this embodiment, a set of ambient light indices for the light sensor is obtained. Wherein the left and right sets of light sensors comprise a plurality of light sensors and the set of ambient light indices comprises a plurality of ambient light indices. Specifically, a plurality of ambient light indexes of a plurality of light sensors are obtained, and one light sensor corresponds to one ambient light index. The light sensor is used for detecting an ambient light index of ambient light, the ambient light index is a light sensing value of the light sensor, and the light sensor can generate a unique light sensing value (a brightness value and the ambient light index) under the illumination of the same brightness.

In one embodiment, the plurality of sensors includes a plurality of left-side light sensors and a plurality of right-side light sensors, and the step of obtaining a plurality of ambient light indices for the plurality of light sensors includes:

In this embodiment, the plurality of photosensors include photosensors disposed on both sides of the ink-wash screen, one side of the plurality of photosensors includes a plurality of left-side photosensors, and the other side of the plurality of photosensors includes a plurality of right-side photosensors.

One left side light sensor corresponds to one left side ambient light index, and the position of the left side light sensor is the deployment position of the left side light sensor.

Specifically, a plurality of left side ambient light indexes of a plurality of left side light sensors are obtained, and the left side ambient light indexes are combined to obtain a left side ambient light index array based on the positions of the left side light sensors from top to bottom. Of course, the left ambient light index array may also be obtained by combining a plurality of left ambient light indexes based on the positions of the left light sensors from bottom to top.

In one embodiment, for the left-side light sensor, a corresponding left-side ambient light index array is formed according to the position of the left-side light sensor, wherein the light sensor closer to the upper left corner of the screen has the corresponding left-side ambient light index sorted in the left-side ambient light index array to be the front.

One right side optical sensor corresponds to one right side ambient light index, and the position of the right side optical sensor is the deployment position of the right side optical sensor.

Specifically, a plurality of right side ambient light indexes of a plurality of right side light sensors are obtained, and the right side ambient light indexes are combined to obtain a right side ambient light index array based on the positions of the right side light sensors from top to bottom. Of course, the right ambient light indices may be combined to obtain the right ambient light index array based on the positions of the right light sensors from bottom to top.

In some embodiments, for the right-side light sensor, a corresponding right-side ambient light index array is formed according to the position of the right-side light sensor, wherein the light sensor closer to the upper right corner of the screen has the corresponding right-side ambient light index ranked further forward in the right-side ambient light index array.

In another embodiment, the plurality of light sensors includes a left light sensor bar and a right light sensor bar, and the step of obtaining a plurality of ambient light indices for the plurality of light sensors includes:

Step A12, dividing the ink-wash screen into different areas based on the set of ambient light indexes;

in this embodiment, the ink-wash screen is divided into different regions based on a set of ambient light indices. Wherein the set of ambient light indices comprises a plurality of ambient light indices, and the different regions comprise a number of regions. Specifically, the ink-wash screen is divided into a number of zones based on a plurality of ambient light indices. Wherein, a plurality of regions can include 1 or a plurality of, and is the same at a plurality of environment light index homogeneous phases, then a plurality of regions are 1, and the projection illumination intensity of whole china ink screen is the same promptly, and when a plurality of environment light index were inequality, then a plurality of regions are a plurality of, and the projection illumination intensity of whole china ink screen promptly is inequality, consequently, need divide the china ink screen, obtains a plurality of regions of different environment light index.

Specifically, whether a plurality of ambient light indexes are the same is judged; if the color values are the same, the ink screen is not divided, the following step A13 is directly carried out to determine the ambient light index of the ink screen, and the backlight adjustment is carried out on the ink screen based on the ambient light index of the ink screen; and if not, dividing the ink-wash screen into a plurality of areas based on a plurality of ambient light indexes.

In one embodiment, the plurality of ambient light indices includes a plurality of left ambient light indices and a plurality of right ambient light indices, and the step a12 includes:

Specifically, based on the positions of the left-side light sensors from top to bottom, the left-side ambient light indexes are compared front and back, so that a plurality of left-side positions with different ambient light indexes are determined based on the comparison result. Of course, the left ambient light indices may be compared back and forth based on the bottom-up positions of the left light sensors.

In one embodiment, the step of determining, based on the comparison result, a plurality of left positions with different ambient light indexes comprises:

traversing a plurality of left side ambient light indexes, comparing the values of the front and back left side ambient light indexes in the plurality of left side ambient light indexes in sequence, finding the unequal positions of the front and back left side ambient light indexes in the left side, and circulating to obtain a plurality of left side positions with different ambient light indexes based on the positions.

Wherein, a plurality of left side positions can include 0, 1 or a plurality of, if a plurality of left side environment light index homogeneous phase is the same, then a plurality of left side positions include 0, if a plurality of left side environment light index exist one inequality, then a plurality of left side positions include 1, if a plurality of left side environment light index exist a plurality of inequality, then a plurality of left side positions include a plurality ofly.

In one embodiment, the plurality of light sensors includes a plurality of left side light sensors, the plurality of left side ambient light indices are detected by the plurality of left side light sensors, and the step of comparing the plurality of left side ambient light indices to determine a plurality of left side positions with different ambient light indices includes:

comparing two left ambient light indices of adjacent two of the plurality of left light sensors based on the location of the plurality of left light sensors; determining first light sensors with different ambient light indexes based on the comparison result, and acquiring sensor labels of the first light sensors; and determining left positions with different ambient light indexes based on the sensor marks, the height of the ink-water screen and the number of the left light sensors, and returning to the step of comparing each front left ambient light index and each rear left ambient light index in the left ambient light indexes until the comparison of the left ambient light indexes is completed to obtain a plurality of left positions with different ambient light indexes.

The positions of the left side light sensors are the deployment positions of the left side light sensors, and the left side light sensors corresponding to each front left side ambient light index and each rear left side ambient light index are two adjacent light sensors.

Specifically, based on the positions of a plurality of left side light sensors, a plurality of left side ambient light indexes are traversed, the values of a front left side ambient light index and a rear left side ambient light index in the left side ambient light indexes are compared in sequence, the positions of the front left side ambient light index and the rear left side ambient light index which are not equal in the left side are found, and the left side positions with different ambient light indexes are obtained by circulation based on the positions.

The sensor label can be an integer of 0-N-1 according to the position of the corresponding left optical sensor.

Specifically, the step of determining the left position with different ambient light indexes based on the sensor number, the height of the ink-water screen and the number of the left light sensors includes:

and determining the left side positions with different ambient light indexes based on a preset position formula, the sensor marks, the height of the ink-water screen and the number of the left side light sensors. Wherein the preset position formula is as follows:

Y＝H*M/N，

y is the left side position that the ambient light index is different, H is the height of ink screen, N is the quantity of a plurality of left side light sensor, M is the sensor reference numeral, and this sensor reference numeral can be according to the position that corresponds light sensor, and the value is the integer of 0 ~ N-1.

For convenience of understanding, for example, the left ambient light index array is R, and the front and rear ambient light indexes Rx-1 and Rx +1 in the front and rear R are compared to see if they are equal to Rx, and if they are not equal to Rx, they represent different brightness illumination; based on the above, the values of R1 and R2 are compared, and if the values are not equal, the positions where the two values are not equal are found to be H x 2/N. If the values are equal, comparing R2 with R3, if the values are not equal, finding the position where the two values are not equal to each other as H x 3/N, and repeating the steps.

Specifically, based on the positions of the right-side light sensors from top to bottom, the right-side ambient light indexes are compared front and back, so that a plurality of right-side positions with different ambient light indexes are determined based on the comparison result. Of course, the right ambient light indices may be compared back and forth based on the bottom-up position of the right light sensors.

In an embodiment, the step of determining, based on the comparison result, a number of right positions at which the ambient light index differs comprises:

traversing a plurality of right-side ambient light indexes, sequentially comparing values of a front right-side ambient light index and a rear right-side ambient light index in the plurality of right-side ambient light indexes, finding out positions in the right side where the front right-side ambient light index and the rear right-side ambient light index are unequal, and circulating to obtain a plurality of right-side positions with different ambient light indexes based on the positions.

Wherein, a plurality of right side positions can include 0, 1 or a plurality ofly, if a plurality of right side environment light index homogeneous phase is the same, then a plurality of right side positions include 0, if a plurality of right side environment light index exist one inequality, then a plurality of right side positions include 1, if a plurality of right side environment light index exist a plurality of inequality, then a plurality of right side positions include a plurality ofly.

In one embodiment, the plurality of light sensors includes a plurality of right side light sensors, and the plurality of right side ambient light indexes are detected by the plurality of right side light sensors, and the step S22 includes:

comparing two right side ambient light indices of adjacent two of the plurality of right side light sensors based on the position of the plurality of right side light sensors; determining first light sensors with different ambient light indexes based on the comparison result, and acquiring sensor labels of the first light sensors; and determining the right positions with different ambient light indexes based on the sensor marks, the height of the ink-water screen and the number of the right light sensors, and returning to the step of comparing the two right ambient light indexes of two adjacent light sensors in the right light sensors until the comparison of the right ambient light indexes is completed to obtain a plurality of right positions with different ambient light indexes.

The positions of the right-side light sensors are the deployment positions of the right-side light sensors, and the right-side light sensors corresponding to each front right ambient light index and each rear right ambient light index are two adjacent light sensors.

Specifically, based on the positions of the right-side light sensors, the right-side ambient light indexes are traversed, the values of the front right-side ambient light index and the rear right-side ambient light index in the right-side ambient light indexes are sequentially compared, the positions of the front right-side ambient light index and the rear right-side ambient light index in the right side are found, and the positions are circulated to obtain a plurality of right-side positions with different ambient light indexes.

The sensor label can be an integer of 0-N-1 according to the position of the corresponding right optical sensor.

Specifically, the step of determining the right position with different ambient light indexes based on the sensor number, the height of the ink-water screen and the number of the right light sensors comprises:

and determining the right side positions with different ambient light indexes based on a preset position formula, the sensor marks, the height of the ink-water screen and the number of the right side light sensors. Wherein the preset position formula is as follows:

Y＝H*M/N，

y is the right side position that the ambient light index is different, H is the height of ink screen, N is the quantity of a plurality of right side light sensors, M is the sensor reference number, and this sensor reference number can be according to the position that corresponds the light sensor, and the value is the integer of 0 ~ N-1.

For convenience of understanding, for example, the right ambient light index array is R, and the front and rear ambient light indexes Rx-1 and Rx +1 in the front and rear R are compared to see if they are equal to Rx, and if they are not equal to Rx, they represent different brightness illumination; based on the above, the values of R1 and R2 are compared, and if the values are not equal, the positions where the two values are not equal are found to be H x 2/N. If the values are equal, comparing R2 with R3, if the values are not equal, finding the position where the two values are not equal to each other as H x 3/N, and repeating the steps.

Specifically, a plurality of segmentation points are determined based on a plurality of left positions and a plurality of right positions; and dividing the ink-water screen into a plurality of areas based on the plurality of dividing points. Wherein a region is obtained based on four adjacent segmentation points.

It should be noted that, when the plurality of regions include two regions, the region is formed based on four coordinates from the upper left corner of the screen, the upper right corner of the screen, to the position where the left ambient light index is not equal, and finally to the position where the right ambient light index is not equal.

In addition, it should be noted that there may be a plurality of differences between the ambient light indexes obtained by the light sensors in the same column, and each different position is used as a division point, and the screen is divided into a plurality of areas by the left division point and the right division point.

For easy understanding, in one embodiment, referring to fig. 4, fig. 4 is a schematic diagram of region division according to an embodiment of the present invention. Firstly, a plurality of dense optical sensors are arranged on the left side of the ink screen, and a plurality of dense optical sensors are also arranged on the right side of the ink screen. The position of the optical sensor is represented by two-dimensional coordinates, wherein the left upper side of the ink screen is {0, 0}, the left lower side is (0, h), namely the height of the ink screen is h, the right upper side of the ink screen is { w, 0}, and the right lower side is (w, h), namely the width of the ink screen is w. Based on the above, comparing a plurality of left-side ambient light indexes measured by a plurality of densely arranged left-side light sensors, and determining a plurality of left-side positions with different ambient light indexes, as {0, y1} in fig. 4; comparing a plurality of right-side ambient light indexes obtained by measuring a plurality of dense light sensors deployed on the right side, and determining a plurality of right-side positions with different ambient light indexes, as shown in { w, y2} of fig. 4; finally, two regions, region 1 and region 2, are obtained, region 1 being the region of {0, 0} - { w, 0} - { w, y2} - {0, y1} and region 2 being the region of {0, y1} - { w, y2} - { w, h } - {0, h }. Of course, the method may also be divided into more regions or regions in other forms, which are specifically divided according to actual situations and are not described in detail herein.

In this embodiment, the ambient light indexes of each side are compared to obtain a plurality of positions where the ambient light indexes of each side are different, so that the ink-and-wash screen is divided based on the plurality of positions. Through the mode, the ambient light indexes are compared to divide the area of the ink screen according to the ambient illumination intensity on the ink screen, so that the subsequent backlight adjustment on the divided areas is respectively carried out, the backlight adjustment on the whole ink screen is compared, and the accuracy of the backlight adjustment of the ink screen can be further improved.

It will be appreciated that the ambient light indices of each side are compared to obtain a number of locations for each side where the ambient light indices are different, thereby dividing the ink-jet screen based on the number of locations. Through the mode, the ambient light indexes are compared to divide the area of the ink screen according to the ambient illumination intensity on the ink screen, so that the subsequent backlight adjustment on the divided areas is respectively carried out, the backlight adjustment on the whole ink screen is compared, and the accuracy of the backlight adjustment of the ink screen can be further improved.

Further, the step a12 includes:

and dividing the ink-wash screen into a plurality of areas based on the left-side ambient light index array and the right-side ambient light index array.

In this embodiment, the ink-wash screen is divided into several areas based on the left ambient light index array and the right ambient light index array. Specifically, traversing the left-side ambient light index array, sequentially comparing the values of the front and rear left-side ambient light indexes in the left-side ambient light index array, and finding out the positions of the front and rear left-side ambient light indexes in the left side, which are not equal; traversing the right-side ambient light index array, sequentially comparing the values of the front and rear right-side ambient light indexes in the right-side ambient light index array, and finding out the positions of the front and rear right-side ambient light indexes in the right side, which are not equal; and finally, dividing the ink screen into a plurality of areas based on the positions of the left side and the right side with unequal ambient light indexes in the left side and the positions of the front side and the rear side with unequal ambient light indexes in the right side.

In one embodiment, the step of finding a position in the left side where the front and back left ambient light indexes are not equal comprises:

determining first light sensors with different ambient light indexes based on the comparison result, and acquiring sensor labels of the first light sensors; determining a left position at which the ambient light index is different based on the sensor designation, the height of the ink-and-water screen, and the number of the plurality of left light sensors.

Y＝H*M/N，

In one embodiment, the step of finding a position in the right side where the front and back right ambient light indexes are not equal comprises:

determining second light sensors with different ambient light indexes based on the comparison result, and acquiring sensor labels of the second light sensors; determining a right position with different ambient light indices based on the sensor designation, the height of the ink-and-water screen, and the number of the plurality of right light sensors.

Y＝H*M/N，

In a specific embodiment, the step of dividing the ink-water screen into a plurality of regions based on the position where the front and rear left-side ambient light indexes in the left side are not equal and the position where the front and rear right-side ambient light indexes in the right side are not equal includes:

determining a plurality of segmentation points based on the positions of the left side and the right side with unequal ambient light indexes; and dividing the ink-water screen into a plurality of areas based on the plurality of dividing points. Specifically, one region is obtained based on four adjacent division points.

Step a13, determining each ambient light index of the different regions based on the set of ambient light indices.

In this embodiment, the respective ambient light indices of the different regions are determined based on the set of ambient light indices. Wherein the set of ambient light indices comprises a plurality of ambient light indices, and the different regions comprise a number of regions. Specifically, a plurality of area ambient light indexes corresponding to the plurality of areas are determined based on the plurality of ambient light indexes, and backlight adjustment is performed on the plurality of areas based on the plurality of area ambient light indexes. Wherein one of the plurality of regions corresponds to a region ambient light index.

In this embodiment, the left ambient light index set and the right ambient light index set are obtained, which facilitates dividing the ink-wash screen into a plurality of regions based on the ambient light index sets, thereby improving the processing rate of backlight adjustment.

Further, based on the first embodiment, a third embodiment of the backlight adjusting method of the present invention is provided.

In this embodiment, in step S20, the adjusting backlight of at least one of the different regions based on at least one of the ambient light indexes includes:

step A21, comparing at least one of the ambient light indexes with a preset threshold;

in this embodiment, at least one ambient light index is compared to a preset threshold. The preset threshold may include one or more, and one regional ambient light index may include one or more ambient light indexes. Specifically, the ambient light indexes of the plurality of regions are compared with a first preset threshold and a second preset threshold, wherein the first preset threshold is larger than the second preset threshold. That is, whether the ambient light index of each region is less than or equal to a first preset threshold is judged, and if yes, the backlight mode of the region is turned on; and judging whether the ambient light index of each area is less than or equal to a second preset threshold value, and if so, starting a light sensation algorithm to start an eye protection mode. Further, whether the ambient light index of each region is larger than a first preset threshold value is judged, if yes, the backlight mode of the region is closed, namely, the backlight is closed.

Step A22, based on the comparison result, backlight adjusting is carried out on the micro-light area in the different area, or backlight adjusting is carried out on the weak-light area in the different area.

In the present embodiment, based on the comparison result, the backlight adjustment is performed for the micro-light regions in different regions, or the backlight adjustment is performed for the weak-light regions in different regions. Specifically, if one of the plurality of regional ambient light indexes is smaller than or equal to a first preset threshold and larger than a second preset threshold, backlight adjustment is performed on a micro-light region in the plurality of regions, where the micro-light region is a region where the regional ambient light index is smaller than or equal to the first preset threshold and larger than the second preset threshold.

In one embodiment, the step of backlighting the regions comprises:

and backlight adjustment is carried out on the micro-light regions in the plurality of regions based on a preset micro-light adjustment strategy. The preset dim light adjusting strategy can be set according to actual needs, for example, regional environment light index corresponding to the dim light region is compensated to a first preset threshold value.

In another embodiment, the step of backlighting the regions comprises:

step A221, acquiring a first area ambient light index of a micro-light area in the plurality of areas;

step A222, performing difference operation on the first preset threshold and the first area ambient light index to obtain a light index compensation value;

step A223, determining a backlight brightness value based on the light index compensation value and a preset backlight brightness value unit;

step A224, performing backlight adjustment on the dim light region based on the backlight brightness value.

In this embodiment, first, a first area ambient light index of a micro-light area in a plurality of areas is obtained, then, a difference operation is performed on a first preset threshold and the first area ambient light index to obtain a light index compensation value, then, a backlight brightness value is determined based on the light index compensation value and a preset backlight brightness value unit, and finally, backlight adjustment is performed on the micro-light area based on the backlight brightness value.

The first preset threshold may be set according to an actual situation, where the first preset threshold is a zero boundary point of the normal brightness of the ink-wash screen, for example, the first preset threshold is 5000.

For understanding, the present embodiment needs to turn on the backlight such that the light sensitivity value (the local ambient light index) + the backlight brightness value is equal to the first preset threshold. It can be understood that the backlight brightness value calculation formula is as follows:

N＝(5000–R)/(M/255)，

wherein: n is a brightness value (backlight brightness value) of the backlight to be turned on, R is a currently measured value (regional environment light index) of the light sensor, M is a light sensation value obtained by turning on the backlight to the maximum in a completely dark environment, and the backlight value is 0-255. Based on this, the backlight brightness value unit is (M/255), and of course, the backlight value may be set to other values, and accordingly, the backlight brightness value unit may also be in other forms, which is not limited herein.

Specifically, if one of the plurality of regional ambient light indexes is less than or equal to a second preset threshold, backlight adjustment is performed on a weak light region in the plurality of regions, where the regional ambient light index is less than or equal to the second preset threshold.

In one embodiment, the step of backlighting the regions comprises:

and carrying out backlight adjustment on the weak light areas in the plurality of areas based on a preset weak light adjustment strategy. The preset dim light adjusting strategy can be set according to actual needs.

In another embodiment, the step of backlighting the regions of reduced light comprises:

step A225, performing gray scale test on the weak light areas in the plurality of areas to obtain luminous flux;

step A226, performing content test on the weak light area to obtain an average gray scale value;

step A227, performing fitting calculation on the luminous flux and the average gray scale value to obtain a fitting gray scale value;

step A228, performing backlight adjustment on the weak light area based on the fitted gray value.

In this embodiment, a gray scale test is performed on a weak light region in a plurality of regions to obtain a light flux, a content test is performed on the weak light region to obtain an average gray scale value, then, a fitting calculation is performed on the light flux and the average gray scale value to obtain a fitting gray scale value, and finally, backlight adjustment is performed on the weak light region based on the fitting gray scale value.

The ink-wash screen system further comprises an EINK panel and a backlight module, wherein the EINK panel comprises an EINK screen with 0-255 gray scale display capability and a light sensation algorithm module, and the backlight module comprises a backlight light source and a backlight control module for regulating and controlling the brightness of the backlight light source; the light sensing algorithm module comprises a light sensing test strip and a Framebuffer; the light sensor is positioned between the EINK panel and the backlight module, is in a shielding state and only receives the ambient light projected by the vertical EINK panel.

Specifically, a light sensation test strip is opened, gray scale test is started, and luminous flux [ x, y ] is recorded at the same time; opening a framebuffer to read an image displayed by an EINK screen, and starting a content test to obtain an average gray-scale value M; fitting and calculating the luminous flux [ x, y ] and the average gray value M to obtain a fitting gray value P; and the backlight control module performs backlight adjustment according to the gray value P as an output parameter.

For ease of understanding, P (Px, Py) can be obtained by the following formula:

Px＝Math.abs(M–x)，Py＝Math.abs(M–y)。

further, the gray scale test may measure luminous flux using the change of the photo sensing test strip 0-255, and the photo sensing test strip changes gray scale from 0-255 once every 2 milliseconds.

Further, after the step a31, the backlight adjusting method further includes:

if the ambient light index of one of the plurality of area ambient light indexes is larger than a first preset threshold value, the backlight mode of the area is closed, namely the backlight is closed.

In this embodiment, the plurality of regional ambient light indexes are compared with the first preset threshold and the second preset threshold to divide the backlight adjustment into a plurality of adjustment modes, so as to further improve the accuracy of the backlight adjustment.

The present invention also provides a backlight adjustment system, comprising: the ink and water screen system comprises: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively;

the backlight brightness adjuster includes: a memory, a processor and a backlight adjusting program stored on the memory and executable on the processor, the backlight adjusting program when executed by the processor implementing the steps of the backlight adjusting method as described in any of the above embodiments.

The specific embodiment of the backlight adjusting system of the present invention is substantially the same as the embodiments of the backlight adjusting method, and will not be described herein again.

The present invention also provides a computer readable storage medium having stored thereon a backlight adjustment program, which when executed by a processor implements the steps of the backlight adjustment method as described in any of the above embodiments.

The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the backlight adjusting method described above, and is not described herein again.

The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the backlight adjustment method as described in any of the above embodiments.

The specific embodiment of the computer program product of the present invention is substantially the same as the embodiments of the backlight adjusting method, and is not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A backlight adjusting method, applied to a backlight brightness adjuster of an ink-jet screen system, the ink-jet screen system comprising: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively;

the backlight adjusting method comprises the following steps:

2. The backlight adjustment method of claim 1, wherein:

the light sensors comprise a left side light sensor set and a right side light sensor set;

3. The backlight adjustment method of claim 2, wherein the step of determining the respective ambient light indices corresponding to the different regions comprises:

acquiring a set of ambient light indices of the light sensor;

4. The backlight adjustment method of claim 1, wherein the step of backlight adjusting at least one of the different regions based on at least one of the ambient light indices comprises:

comparing at least one of the ambient light indices to a preset threshold;

5. The backlight adjustment method of claim 4, wherein the step of backlight adjusting the micro-light regions in the different regions comprises:

6. The backlight adjustment method of claim 4, wherein the backlight adjusting the weak light regions in the different regions comprises:

7. A backlight adjustment device, characterized in that the backlight adjustment device comprises: memory, a processor and a backlight adjustment program stored on the memory and executable on the processor, the backlight adjustment program when executed by the processor implementing the steps of the backlight adjustment method according to any of claims 1 to 6.

8. A backlight adjustment system, the ink-jet screen system comprising: the backlight module comprises an ink screen, a light sensor, a local backlight brightness regulator and a backlight brightness regulator, wherein the light sensor is used for respectively sensing light rays irradiating different areas of the ink screen; the light sensor is disposed under the ink screen; the local backlight brightness adjuster is electrically connected with the backlight brightness adjuster and the signal output end of each optical sensor respectively;

the backlight brightness adjuster includes: memory, a processor and a backlight adjustment program stored on the memory and executable on the processor, the backlight adjustment program when executed by the processor implementing the steps of the backlight adjustment method according to any of claims 1 to 6.

9. The backlight adjustment system of claim 8, wherein:

10. A computer program product, characterized in that the computer program product comprises a computer program which, when being executed by a processor, realizes the steps of the backlight adjustment method as claimed in any one of claims 1 to 6.