Display method and equipment

Abstract

A display method and device relating to the field of electronic technology are provided for reducing visual impairment caused by a user's prolonged use of an electronic display. The display method is applied to an electronic device. The electronic device includes a display. The display method includes first obtaining environmental information, then determining display information of ambient light based on the environmental information, and then adjusting the display brightness and display color temperature of the display based on the display information of ambient light. The environmental information includes the brightness of the ambient light and the color temperature of the ambient light. The display information includes a brightness range corresponding to the brightness of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

Description

[Technical Field]

[0001] [Related Applications] This application claims priority to Chinese Patent Application No. 202211064296.4, filed with the State Intellectual Property Office of China on September 1, 2022, entitled "DISPLAY METHOD AND APPARATUS," which is incorporated herein by reference in its entirety.

[0002] [Technical field] FIELD OF THE INVENTION The embodiments of the present application relate to the field of electronic technology, and in particular to a display method and device. [Background technology]

[0003] Electronic displays, as information transmission media, have appeared in all aspects of people's lives. As people's living standards improve, the average time people spend using electronic displays has increased.

[0004] However, prolonged use by a user of an electronic display can cause damage to the user's eyes.

[0005] Therefore, how to alleviate visual impairment caused by long-term use of electronic displays by users is one of the problems that must be solved urgently by those skilled in the art. Summary of the Invention

[0006] The embodiments of the present application provide a display method and device for reducing visual impairment caused by users' long-term use of electronic displays. To achieve the aforementioned objectives, the following technical solutions are used in the embodiments of the present application:

[0007] According to a first aspect, an embodiment of the present application provides a display method applicable to an electronic device. The electronic device includes a display. The method includes first obtaining environmental information, then determining display information of ambient light based on the environmental information, and then adjusting the display brightness and display color temperature of the display based on the display information of ambient light. The environmental information includes the brightness of the ambient light and the color temperature of the ambient light. The display information includes a brightness range corresponding to the brightness of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

[0008] The display method provided in the embodiment of the present application can adjust the color temperature and brightness of the display based on the brightness and color temperature of the ambient light, so that after adjusting the color temperature and brightness, a display that is more gentle on the user's eyes can be provided, thereby reducing visual impairment caused by the user using an electronic display for a long time.

[0009] For example, the color temperature and brightness of the display can be adjusted based on the brightness and color temperature of the ambient light, so that the appearance of the content displayed on the display matches the appearance of printed paper under the same environment. It is understood that having the appearance of the content displayed on the display close to the appearance of paper means that reading is comfortable and reduces eye fatigue. Therefore, the color temperature and brightness of the display can be adjusted so that the appearance of the content displayed on the display matches the appearance of printed paper under the same environment. This can reduce visual impairment caused by users using electronic displays for long periods of time.

[0010] Optionally, the luminance range corresponding to the luminance of the ambient light is equal to or greater than a first luminance threshold and equal to or less than a second luminance threshold, i.e., first luminance threshold≦luminance range corresponding to the luminance of the ambient light≦second luminance threshold.

[0011] Optionally, the color temperature range corresponding to the color temperature of the ambient light is equal to or greater than a first color temperature threshold and equal to or less than a second color temperature threshold, i.e., first color temperature threshold≦ambient light color temperature corresponds to color temperature The range is less than or equal to the second color temperature threshold.

[0012] In addition, the display method of this embodiment can adjust the display brightness to a value between a first brightness threshold and a second brightness threshold based on the brightness and color temperature of the ambient light, and can adjust the display color temperature to a value between a first color temperature threshold and a second color temperature threshold, so that after adjusting the color temperature and brightness, a display that is more gentle on the user's eyes can be provided, thereby reducing visual impairment caused by long-term use of an electronic display.

[0013] In a possible embodiment, the first brightness threshold may vary depending on the brightness of the ambient light.

[0014] Optionally, the first brightness threshold meets: First brightness threshold=0.25*Ambient light brightness, where "*" is a multiplication sign.

[0015] For example, if the luminance of the ambient light is 300 lux, the first luminance threshold corresponding to the luminance of the ambient light is 0.25*300=75 nits.

[0016] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.3*ambient light brightness.

[0017] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.2*ambient light brightness.

[0018] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.25*ambient light brightness+100.

[0019] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.25*ambient light brightness+50.

[0020] Of course, the first luminance threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0021] In another possible implementation, the first luminance threshold is a fixed value.

[0022] Optionally, the first brightness threshold may be 75.

[0023] Optionally, the first brightness threshold may be 80.

[0024] Optionally, the first brightness threshold may be 85.

[0025] Of course, the first brightness threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0026] In a possible embodiment, the second brightness threshold may vary depending on the brightness of the ambient light.

[0027] Optionally, the second brightness threshold satisfies: second brightness threshold=0.35*ambient light brightness+100, where "*" is a multiplication sign and "+" is a plus sign.

[0028] For example, if the luminance of the ambient light is 300 lux, the second luminance threshold corresponding to the luminance of the ambient light is 0.35*300=205 nits.

[0029] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness.

[0030] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.3*ambient light brightness.

[0031] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness+50.

[0032] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness+150.

[0033] Of course, the second luminance threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0034] In another possible implementation, the second luminance threshold may be a fixed value.

[0035] Optionally, the second brightness threshold may be 115.

[0036] Optionally, the second brightness threshold may be 110.

[0037] Optionally, the second brightness threshold may be 105.

[0038] Of course, the second brightness threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0039] It should be noted that the display method provided in this embodiment of the present application adjusts the brightness of the display to a value between the first brightness threshold and the second brightness threshold based on the brightness of the ambient light. vinegar By adjusting the brightness of the display, the brightness can be made to be closer to that of printed paper under the same ambient lighting. It can be seen that the appearance of the content displayed on the display is closer to that of paper, which means that it is more comfortable to read and less eye fatigue. Therefore, to reduce visual impairment caused by users using electronic displays for long periods of time, the brightness of the display can be adjusted to match the appearance of printed paper under the same ambient lighting.

[0040] A specific method for adjusting the display brightness of the display based on the display information of the ambient light may be any method devised by a person skilled in the art.

[0041] For example, if the display luminance of the display is lower than the first luminance threshold, the display luminance of the display is set to the first luminance threshold. adjustment Furthermore, when the display luminance of the display is greater than the second luminance threshold, the display luminance of the display can be set to the second luminance threshold. adjustment It is possible.

[0042] As another example, the change in brightness of the display may be determined based on a relationship between the brightness of the display and the brightness of the ambient light.

[0043] The line corresponding to the relational expression representing the display brightness and the brightness of ambient light is located between a first brightness line corresponding to the relational expression between the first brightness threshold and the brightness of ambient light, and a second brightness line corresponding to the relational expression between the second brightness threshold and the brightness of ambient light.

[0044] For example, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is: the first brightness threshold and Ambient Light Brightness and and a second luminance line corresponding to the relational expression between the second luminance threshold and the luminance of the ambient light.

[0045] As another example, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is: the first brightness threshold and Ambient Light Brightness and and a second luminance line corresponding to the relational expression between the second luminance threshold and the luminance of the ambient light.

[0046] As another example, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is: the first brightness threshold and It may be a polygonal line between a first luminance line corresponding to the relational expression with the luminance of ambient light and a second luminance line corresponding to the relational expression with the second luminance threshold and the luminance of ambient light.

[0047] In a possible embodiment, the first color temperature threshold may vary with the color temperature of the ambient light.

[0048] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=ambient light color temperature-180, where "-" is a minus sign.

[0049] For example, if the color temperature of the ambient light is 4000 Kelvin (K), the first color temperature threshold corresponding to the color temperature of the ambient light is 4000-180=3820K.

[0050] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=1.1*ambient light color temperature−180.

[0051] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=1.2*ambient light color temperature−180.

[0052] Optionally, the first color temperature threshold may satisfy the following: first color temperature threshold=color temperature of ambient light-200.

[0053] Optionally, the first color temperature threshold may satisfy the following: first color temperature threshold=ambient light color temperature−220.

[0054] Of course, the first color temperature threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0055] In another possible implementation, the first color temperature threshold may alternatively be a fixed value and does not vary with the color temperature of the ambient light.

[0056] Optionally, the first color temperature threshold may be 3800.

[0057] Optionally, the first color temperature threshold may be 3850.

[0058] Optionally, the first color temperature threshold may be 3750.

[0059] Of course, the first color temperature threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0060] In a possible implementation, the second color temperature threshold may vary depending on the color temperature of the ambient light.

[0061] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+200, where "*" is a multiplication sign and "+" is a plus sign.

[0062] For example, if the color temperature of the ambient light is 4000K, the second color temperature threshold corresponding to the color temperature of the ambient light is 1.2*4000K+200=5000K.

[0063] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.25*ambient light color temperature+200.

[0064] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.15*ambient light color temperature+200.

[0065] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+150.

[0066] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+100.

[0067] Of course, the second color temperature threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0068] In another possible implementation, the second color temperature threshold may be a fixed value and does not vary with the color temperature of the ambient light.

[0069] Optionally, the second color temperature threshold may be 4300.

[0070] Optionally, the second color temperature threshold may be 4200.

[0071] Optionally, the second color temperature threshold may be 4400.

[0072] Of course, the second color temperature threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0073] In the display method provided in this embodiment of the present application, the color temperature of the ambient light to Based on this, the color temperature of the display can be adjusted to a value between the first color temperature threshold and the second color temperature threshold. RTherefore, the color temperature of the display can be made closer to the color temperature of printed paper under the same ambient lighting. It can be seen that the appearance of content displayed on a display that is closer to the appearance of paper means a more comfortable reading experience and less eye fatigue. Therefore, to reduce visual impairment caused by users using electronic displays for long periods of time, the color temperature of the display can be adjusted to match the appearance of printed paper under the same ambient lighting.

[0074] Any method devised by a person skilled in the art can be used to adjust the display color temperature of the display based on the display information of the ambient light.

[0075] For example, if the display color temperature of the display is lower than the first color temperature threshold, the display color temperature is set to the first color temperature threshold. adjustment In addition, if the display color temperature of the display is higher than the second color temperature threshold, the display color temperature is set to the second color temperature threshold. adjustment It is possible.

[0076] As another example, the change in the color temperature of the display can be determined based on a relationship between the display color temperature and the color temperature of the ambient light.

[0077] The line corresponding to the equation representing the relationship between the display color temperature and the color temperature of the ambient light is located between the first color temperature line corresponding to the equation representing the relationship between the first color temperature threshold and the color temperature of the ambient light, and the second color temperature line corresponding to the equation representing the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0078] For example, the line corresponding to the relationship between the display color temperature and the color temperature of the ambient light is: First color temperature threshold and Ambient light color temperature and and a second color temperature line corresponding to the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0079] As another example, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is: First color temperature threshold and Ambient light color temperature andand a second color temperature line corresponding to the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0080] As another example, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is: First color temperature threshold and It may be a polygonal line between a first color temperature line corresponding to the relational expression with the color temperature of the ambient light and a second color temperature line corresponding to the relational expression with the second color temperature threshold and the color temperature of the ambient light.

[0081] In a possible implementation, the method may further include a step of performing color gamut mapping on the image to be displayed based on a target 3D mapping table, the target 3D mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

[0082] In addition, the color gamut of the image to be displayed may be mapped based on the target 3D mapping table to change the color of each pixel of the image to be displayed so that the colors of the image after gamut mapping are more pleasing to the user's eyes, thereby further reducing visual impairment caused by prolonged use of an electronic display.

[0083] For example, a color gamut mapping can be performed on a display target image based on a target 3D mapping table, mapping the color of each pixel in the display target image to the color of printed paper, so that the color of the display target image matches the color of printed paper under the same environment. It can be seen that having the appearance of content displayed on a display that is close to the appearance of paper means a comfortable reading experience and less eye fatigue. Therefore, matching the color temperature of a display to the appearance of printed paper under the same environment can further reduce visual impairment caused by users using an electronic display for long periods of time.

[0084] In a possible implementation, a mapped color corresponding to the color of each pixel of the image to be displayed is determined in the target 3D mapping table, and the color of each pixel of the image to be displayed is mapped to the mapped color.

[0085] For example, in red-green-blue (RGB) color mode, the color of pixel 1 in the image to be displayed is represented as (R1, G1, B1). The mapped color in the target 3D mapping table corresponding to (R1, G1, B1) is represented as (R2, G2, B2) in RGB color mode. Therefore, after gamut mapping, pixel 1 in the image to be displayed changes from (R1, G1, B1) to (R2, G2, B2).

[0086] In a possible implementation, the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and under the same ambient light, a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card is equal to or less than a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

[0087] For example, the target three-dimensional mapping table includes a first color (color 1) and a first mapped color (color 2) corresponding to the first color. Under the same ambient light, the LAB data corresponding to the RGB data of color 1 displayed on the display is (L1, A1, B1), and the LAB data corresponding to the RGB data of color 2 displayed on the paper color card is (L2, A2, B2). In this case, the color difference between the first color (color 1) displayed on the display and the first mapped color (color 2) displayed on the paper color card is equal to or less than the color difference threshold.

[0088] Color 1 on the display and the color on the paper color card 2 The color difference between (L1, A1, B1) and (L2, A2, B3) may be determined based on (L1, A1, B1) and (L2, A2, B3) as follows:

number

[0089] Furthermore, under the same ambient light, the color difference between the first color displayed on the display and the first mapped color displayed on the paper color card is less than the color difference threshold. This indicates that under the same ambient light, the color difference between the first color displayed on the display and the first mapped color displayed on the paper color card is small. Color gamut mapping is performed on the target image based on the target 3D mapping table, and the color of each pixel of the target image is changed. After color gamut mapping, the color of the target image displayed on the display under the same environment can be matched to the color of the printed paper. This can reduce visual impairment caused by users using electronic displays for long periods of time.

[0090] Optionally, the color difference threshold is 13.

[0091] Optionally, the color difference threshold may alternatively be three.

[0092] Of course, the color difference threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0093] Optionally, the paper color card may include a color card printed on offset paper using a four-color printer and / or a color card printed on coated paper using a four-color printer.

[0094] In a possible implementation, the method may further include obtaining a target three-dimensional mapping table, the target three-dimensional mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

[0095] It can be seen that in the display method provided in this embodiment of the present application, a target three-dimensional mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors may be obtained, and then color gamut mapping may be performed on the image to be displayed based on the target three-dimensional mapping table, so that the colors of the image to be displayed are more pleasant to the user's eyes, thereby reducing the visual impairment caused by the user using the electronic display for a long time.

[0096] In one possible implementation, at least one color gamut group can be obtained, each color gamut group including the color gamut of the display and the color gamut of a paper color card under the same ambient light, and a target three-dimensional mapping table can be determined based on the at least one color gamut group.

[0097] It should be noted that paper color cards are more comfortable to read than electronic displays. Therefore, a target 3D mapping table containing the mapping relationship between the colors on the paper color card and the colors on the display is generated based on the color gamut of the display and the color gamut of the paper color card under the same ambient light. By performing color gamut mapping on the image to be displayed based on this 3D mapping table, the colors of the image to be displayed become more comfortable for the user's eyes. This reduces visual impairment caused by users using electronic displays for long periods of time.

[0098] It should be noted that the specific method for determining the target three-dimensional mapping table based on at least one color gamut group may be any one or more methods devised by a person skilled in the art.

[0099] For example, a hue-preserving minimum (HPMin) ΔE algorithm may be used to determine a target three-dimensional mapping table based on at least one color gamut group.

[0100] The color gamut includes color data of multiple colors (for example, RGB data).

[0101] The display may display a plurality of colors to determine the color gamut boundary of the display, and determine the color gamut of the display based on the color gamut boundary of the display.

[0102] The paper color card may display a plurality of colors to determine the color gamut boundary of the paper color card, and the color gamut of the paper color card may be determined based on the color gamut boundary of the paper color card.

[0103] According to a second aspect, an embodiment of the present application provides a display device for use in an electronic device. The electronic device includes a display. The display device includes a transceiver unit and a processing unit. The transceiver unit is configured to acquire environmental information of ambient light, the environmental information including a luminance of the ambient light and a color temperature of the ambient light. The processing unit is configured to determine display information of the ambient light based on the environmental information, and adjust the display luminance and display color temperature of the display based on the display information, the display information including a luminance range corresponding to the luminance of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

[0104] Optionally, the luminance range corresponding to the luminance of the ambient light is greater than or equal to a first luminance threshold and less than or equal to a second luminance threshold.

[0105] Optionally, the color temperature range corresponding to the color temperature of the ambient light is greater than or equal to a first color temperature threshold and less than or equal to a second color temperature threshold.

[0106] Optionally, the first brightness threshold meets: First brightness threshold=0.25*Ambient light brightness, where "*" is a multiplication sign.

[0107] Optionally, the first brightness threshold is 75.

[0108] Optionally, the second brightness threshold satisfies: second brightness threshold=0.35*ambient light brightness+100, where "*" is a multiplication sign and "+" is a plus sign.

[0109] Optionally, the second brightness is 115.

[0110] Optionally, the first color temperature threshold satisfies: first color temperature threshold=ambient light color temperature-180, where "-" is a minus sign.

[0111] Optionally, the first color temperature threshold is 3800.

[0112] Optionally, the second color temperature threshold satisfies: second color temperature threshold=1.2*ambient light color temperature+200, where "*" is a multiplication sign and "+" is a plus sign.

[0113] Optionally, the second color temperature threshold is 4300.

[0114] In a possible implementation, the processing unit is further configured to perform color gamut mapping on the image to be displayed on the display based on a target 3D mapping table, the target 3D mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

[0115] In a possible implementation, the processing unit is configured, in particular, to determine a mapped color in the target three-dimensional mapping table that corresponds to the color of each pixel in the image to be displayed, and to map the color of each pixel of the image to be displayed to the mapped color.

[0116] In a possible implementation, the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and under the same ambient light, a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card is equal to or less than a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

[0117] Optionally, the color difference threshold is 13.

[0118] In a possible implementation, the transceiver unit is further configured to obtain a target 3D mapping table, the target 3D mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

[0119] In a possible implementation, the transceiver unit is configured, inter alia, to obtain at least one color gamut group, each color gamut group including the color gamut of the display and the color gamut of a paper color card under the same ambient light, and to determine a target three-dimensional mapping table based on the at least one color gamut group.

[0120] Optionally, the paper color card comprises a color card printed on offset paper using a four-color printer and / or a color card printed on coated paper using a four-color printer.

[0121] According to a third aspect, an embodiment of the present application further provides a display device, the display device including at least one processor, which, when executed by the at least one processor, executes program codes or instructions to perform the method of the first aspect or any one of the possible implementations of the first aspect.

[0122] Optionally, the display device may further include at least one memory, the at least one memory configured to store program codes or instructions.

[0123] According to a fourth aspect, embodiments of the present application further provide a chip including an input interface, an output interface, and at least one processor. Optionally, the chip further includes a memory. The at least one processor is configured to execute code in the memory. When the at least one processor executes the code, the chip performs a method of the first aspect or any one of possible implementations of the first aspect.

[0124] Optionally, the chip may be an integrated circuit.

[0125] According to a fourth aspect, embodiments of the present application further provide a computer-readable storage medium configured to store a computer program, the computer program configured to implement the method of the first aspect or any one of the possible implementations of the first aspect.

[0126] According to a sixth aspect, embodiments of the present application further provide a computer program product comprising instructions, which when executed on a computer, enable the computer to implement the method of the first aspect or any one of the possible implementations of the first aspect.

[0127] The display device, computer storage medium, computer program product, and chip provided in this embodiment are all configured to perform the method provided above. Therefore, for the advantageous effects that can be achieved by the display device, computer storage medium, computer program product, and chip, please refer to the advantageous effects of the above-mentioned method. The details will not be described again here. [Brief explanation of the drawings]

[0128] In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly describe the accompanying drawings to describe the embodiments. Obviously, in the following description, the accompanying drawings only illustrate some embodiments of the present application, and those skilled in the art can still derive other drawings from these accompanying drawings without creative efforts. [Figure 1] 1 is a diagram of a structure of an electronic device according to an embodiment of the present application; [Figure 2] 1 is a diagram of a display structure according to an embodiment of the present application; [Figure 3] 1 is a schematic flowchart of a display method according to an embodiment of the present application; [Figure 4] FIG. 2 is a diagram of the relationship between ambient light luminance and display luminance, according to an embodiment of the present application. [Figure 5] FIG. 2 is a diagram of the relationship between the color temperature of the ambient light and the color temperature of the display, according to an embodiment of the present application. [Figure 6] 1 is a diagram of the structure of a display device according to an embodiment of the present application; [Figure 7] 1 is a diagram of a chip structure according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0129] The following clearly and completely describes the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts should fall within the protection scope of the embodiments of the present invention.

[0130] The term "and / or" in this specification refers to only the association relationship that describes the associated objects, and indicates that three relationships may exist. For example, A and / or B may indicate three cases: only A exists, both A and B exist, and only B exists.

[0131] In the present specification and accompanying drawings of embodiments, the terms "first," "second," etc. are intended to distinguish between different objects or between different treatments of the same object, and are not intended to indicate a particular ordering of the objects.

[0132] Additionally, the terms "including," "having," or other variations thereof, when used in the description of the embodiments of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include other steps or units that are not listed, or may optionally further include other inherent steps or units of the process, method, product, or apparatus.

[0133] It should be noted that in the description of the embodiments of the present application, the words "example" or "for example" and the like are used to indicate an example, illustration, or explanation. Any embodiment or design manner described in the embodiments of the present application as an "example" or "for example" should not be described as being preferred or having more advantages than another embodiment or design manner. Rather, the use of the words "example," "for example," and the like is intended to present related concepts in a particular way.

[0134] In the description of the embodiments, unless otherwise specified, "plurality" means two or more.

[0135] First, terms used in the embodiments of the present application will be explained and described.

[0136] Paper-like display: Modifying the display hardware or software parameters so that the optical parameters of the display resemble the characteristics of a paper book.

[0137] Anti-glare: Glare is a bad lighting phenomenon. When the brightness of the light source is extremely high or there is a large difference in brightness between the background and the center of the field of view, glare occurs. The glare phenomenon not only affects the field of vision, but also affects visual health. Anti-glare can effectively reduce this effect, allowing the display to be clearly seen even in the sun.

[0138] 3D mapping: A method of mapping from a 3D space, that is, mapping from the 3 dimensions of R, G, and B.

[0139] Color Mode (LAB) color space: A color-opponent space based on nonlinearly compressed CIE XYZ color space coordinates, where the L dimension represents luminance and the a and b dimensions represent the color opponent dimensions.

[0140] Cyan, magenta, yellow, black (CMYK): The four-color printing mode is a color set mode used in color printing. It uses the three primary color mixing principle of pigments, adds black ink, and mixes and adds a total of four colors to form what is called "full color printing."

[0141] Electronic displays, as information transmission media, have appeared in all aspects of people's lives. As people's living standards improve, the average time people spend using electronic displays has increased.

[0142] However, prolonged use by a user of an electronic display can cause damage to the user's eyes.

[0143] Therefore, embodiments of the present application provide a display method for reducing visual impairment caused by a user's prolonged use of an electronic display. The method is applicable to electronic devices, which may be mobile phones, tablet computers, wearable devices, smart TVs, smart screens, in-vehicle devices, augmented reality (AR) / virtual reality (VR) devices, notebook computers, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs).

[0144] FIG. 1 shows a possible embodiment of an electronic device 100 .

[0145] The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, a headset jack 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display 194, a subscriber identity module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, an optical proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

[0146] It can be understood that the structures shown in the embodiments of the present application do not constitute specific limitations on the electronic device 100. In some other embodiments of the present application, the electronic device 100 may include more or fewer components than those shown, or some components may be combined, or some components may be separated, or a different component arrangement may be used. The components shown in the figures may be implemented by hardware, software, or a combination of software and hardware.

[0147] Processor 110 may include one or more processing units. For example, processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. The different processing units may be separate components or may be integrated into one or more processors.

[0148] The controller may be the brain and command center of the electronic device 100. The controller can generate operation control signals based on instruction operation codes and time sequence signals to fully control instruction reading and execution.

[0149] Memory may also be located within processor 110 and configured to store instructions and data. In some embodiments, processor 110 may include one or more interfaces. The interfaces may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, a universal serial bus (USB) interface, etc.

[0150] The I2C interface is a bidirectional synchronous serial bus. The processor 110 is coupled to the touch sensor 180K via the I2C interface, and the processor 110 can communicate with the touch sensor 180K via the I2C bus interface to realize the touch function of the electronic device 100. The MIPI interface can be configured to connect the processor 110 to peripheral components such as the display 194 or the camera 193. The MIPI interface includes a camera serial interface (CSI), a display serial interface (DSI), etc. In some embodiments, the processor 110 communicates with the camera 193 via the CSI interface to realize the image capture function of the electronic device 100. The processor 110 communicates with the display 194 via the DSI interface to realize the display function of the electronic device 100.

[0151] It should be understood that the interface connection relationships between modules described in this embodiment of the present application are merely examples for the purpose of explanation and do not limit the structure of the electronic device 100. In some other embodiments of the present application, the electronic device 100 may use an interface connection method different from that in the above embodiment, or may use a combination of multiple interface connection methods.

[0152] The charging management module 140 is configured to receive a charging input from a charger. The charger may be a wireless charger or a wired charger. The power management module 141 is configured to connect to the battery 142, the charging management module 140, and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140 and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, etc.

[0153] The electronic device 100 implements display functionality by using a GPU, a display 194, an application processor, etc. The GPU is a microprocessor for image processing and is connected to the display 194 and the application processor. The GPU is configured to perform mathematical and geometric calculations and to perform graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or modify display information.

[0154] Display 194 is configured to display images, videos, etc. Display 194 includes a display panel. The display panel may be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a mini-LED, a micro-LED, a micro-OLED, a quantum dot light-emitting diode (QLED), etc. In some embodiments, electronic device 100 may include one or N displays 194, where N is a positive integer greater than 1.

[0155] The electronic device 100 can achieve photographic functionality by using a camera 193, an ISP, a sensor, a video codec, a GPU, a display 194, an application processor, and the like.

[0156] The ISP is configured to process data fed back by the camera 193. For example, during photography, the shutter is pressed and light is sent through the lens to the camera's photosensitive elements. The light signal is converted into an electrical signal, which the camera's photosensitive elements send to the ISP for processing, converting the electrical signal into a visible image. The ISP can also perform algorithmic optimization for image noise, brightness, and complexion. The ISP can also optimize parameters such as exposure and color temperature for the photography scenario. In some embodiments, the ISP may be located in the camera 193.

[0157] The camera 193 is configured to capture still images or video. An optical image of an object is generated through a lens and projected onto a photoreceptor. The photoreceptor may be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photoreceptor converts an optical signal into an electrical signal, which is then sent to an ISP for conversion into a digital image signal. The ISP outputs the digital image signal to a DSP for processing. The DSP converts the digital image signal into an image signal in a standard format, such as RGB or YUV. In the description of this embodiment of the present application, an image in RGB format is used as an illustrative example, and it should be understood that the image format is not limited to this embodiment of the present application. In some embodiments, the electronic device 100 may include one or N cameras 193, where N is a positive integer greater than 1.

[0158] The digital signal processor is configured to process digital signals and may process other digital signals in addition to digital image signals, for example, once the electronic device 100 selects a frequency, the digital signal processor may be configured to perform a Fourier transform or the like on the frequency energy.

[0159] A video codec is configured to compress or decompress digital video. Electronic device 100 may support one or more video codecs, thus allowing electronic device 100 to play or record video in multiple coding formats, such as Moving Picture Experts Group (MPEG)-1, MPEG-2, MPEG-3, and MPEG-4.

[0160] The external memory interface 120 can be configured to connect to an external memory card, such as a microSD card, to expand the storage capabilities of the electronic device 100. The internal memory 121 can be configured to store computer-executable program code. The executable program code includes instructions. The processor 110 executes the instructions stored in the internal memory 121 to perform various functional applications and data processing of the electronic device 100. The internal memory 121 may include program storage areas and data storage areas.

[0161] The electronic device 100 can implement audio functions such as music playback and recording using an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, a headset jack 170D, an application processor, and the like.

[0162] The buttons 190 include a power button, a volume button, etc. The buttons 190 may be mechanical buttons or touch buttons. The electronic device 100 can receive button input and generate button signal inputs related to user settings and function control of the electronic device 100. The motor 191 can generate vibration prompts. The motor 191 can be configured to provide an incoming call vibration prompt or touch vibration feedback. For example, touch operations performed in different applications (e.g., taking pictures and playing audio) may correspond to different vibration feedback effects. The motor 191 may also correspond to different vibration feedback effects for touch operations performed in different areas of the display 194. The indicator 192 may be an indicator light and may be configured to indicate a charging status and power change, or to indicate messages, missed calls, notifications, etc. The SIM card interface 195 is configured to connect to a SIM card.

[0163] It should be noted that the electronic device 100 may be a chip system or a device having a structure similar to that shown in FIG. 1 . The chip system may include a chip, or may include a chip and other discrete elements. Regarding operations, terms, etc. in the embodiments of the present application, cross-references are made without limitation. In the embodiments of the present application, names of message exchanges between devices, names of parameters in messages, etc. are merely examples. Alternatively, other names may be used in a specific implementation without limitation. Furthermore, the configuration shown in FIG. 1 does not limit the electronic device 100. In addition to the components shown in FIG. 1 , the electronic device 100 may include more or fewer components than those shown in FIG. 1 , or some components may be combined, or a different component arrangement may be used.

[0164] An anti-glare layer can also be disposed on the display of the electronic device, as shown in Figure 2. The anti-glare layer can prevent interference caused by reflection and glare.

[0165] Hereinafter, the display method provided in the embodiment of the present application will be described with reference to the electronic device shown in FIG.

[0166] 3 shows a display method according to an embodiment of the present application. The method may be performed by the aforementioned electronic device. As shown in FIG. 3, the method includes the following steps:

[0167] S301: The electronic device acquires environmental information about the ambient light.

[0168] The environmental information includes the brightness of the environmental light and the color temperature of the environmental light.

[0169] For example, an electronic device may use an ambient light sensor to determine that the luminance of the ambient light is 300 lux and the color temperature of the ambient light is 4000K.

[0170] S302: The electronic device determines display information of the ambient light based on the ambient light environment information.

[0171] The display information of the ambient light includes a luminance range corresponding to the luminance of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

[0172] Optionally, the luminance range corresponding to the luminance of the ambient light is equal to or greater than a first luminance threshold and equal to or less than a second luminance threshold, i.e., first luminance threshold≦luminance range corresponding to the luminance of the ambient light≦second luminance threshold.

[0173] Optionally, the color temperature range corresponding to the color temperature of the ambient light is equal to or greater than a first color temperature threshold and equal to or less than a second color temperature threshold, i.e., the first color temperature threshold≦the luminance range corresponding to the luminance of the ambient light≦the second color temperature threshold.

[0174] In addition, the display method of this embodiment can adjust the display brightness to a value between a first brightness threshold and a second brightness threshold based on the brightness and color temperature of the ambient light, and can adjust the display color temperature to a value between a first color temperature threshold and a second color temperature threshold, so that after adjusting the color temperature and brightness, a display that is more gentle on the user's eyes can be provided, thereby reducing visual impairment caused by users using electronic displays for long periods of time.

[0175] In a possible embodiment, the first brightness threshold may vary depending on the brightness of the ambient light.

[0176] Optionally, the first brightness threshold meets: First brightness threshold=0.25*Ambient light brightness, where "*" is a multiplication sign.

[0177] For example, if the luminance of the ambient light is 300 lux, the first luminance threshold corresponding to the luminance of the ambient light is 0.25*300=75 nits.

[0178] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.3*ambient light brightness.

[0179] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.2*ambient light brightness.

[0180] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.25*ambient light brightness+100.

[0181] Optionally, the first brightness threshold may satisfy: first brightness threshold=0.25*ambient light brightness+50.

[0182] Of course, the first luminance threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0183] In another possible implementation, the first luminance threshold is a fixed value.

[0184] Optionally, the first brightness threshold may be 75.

[0185] Optionally, the first brightness threshold may be 80.

[0186] Optionally, the first brightness threshold may be 85.

[0187] Of course, the first brightness threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0188] In a possible embodiment, the second brightness threshold may vary depending on the brightness of the ambient light.

[0189] Optionally, the second brightness threshold satisfies: second brightness threshold=0.35*ambient light brightness+100, where "*" is a multiplication sign and "+" is a plus sign.

[0190] For example, if the luminance of the ambient light is 300 lux, the second luminance threshold corresponding to the luminance of the ambient light is 0.35*300=205 nits.

[0191] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness.

[0192] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.3*ambient light brightness.

[0193] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness+50.

[0194] Optionally, the second brightness threshold may satisfy: second brightness threshold=0.35*ambient light brightness+150.

[0195] Of course, the second luminance threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0196] In another possible implementation, the second luminance threshold may be a fixed value.

[0197] Optionally, the second brightness threshold may be 115.

[0198] Optionally, the second brightness threshold may be 110.

[0199] Optionally, the second brightness threshold may be 105.

[0200] Of course, the second brightness threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0201] It should be noted that the display method provided in this embodiment of the present application adjusts the brightness of the display to a value between the first brightness threshold and the second brightness threshold based on the brightness of the ambient light. vinegar By adjusting the brightness of the display, the brightness can be made closer to that of printed paper under the same ambient lighting. It can be seen that the closer the appearance of the content displayed on the display is to the appearance of paper, the more comfortable it is to read and the less tired the eyes will be. Therefore, to reduce visual impairment caused by users using electronic displays for long periods of time, the brightness of the display can be adjusted to match the appearance of printed paper under the same ambient lighting.

[0202] In a possible embodiment, the first color temperature threshold may vary with the color temperature of the ambient light.

[0203] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=ambient light color temperature-180, where "-" is a minus sign.

[0204] For example, if the color temperature of the ambient light is 4000K, the first color temperature threshold corresponding to the color temperature of the ambient light is 4000-180=3820K.

[0205] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=1.1*ambient light color temperature−180.

[0206] Optionally, the first color temperature threshold may satisfy: first color temperature threshold=1.2*ambient light color temperature−180.

[0207] Optionally, the first color temperature threshold may satisfy the following: first color temperature threshold=color temperature of ambient light-200.

[0208] Optionally, the first color temperature threshold may satisfy the following: first color temperature threshold=ambient light color temperature−220.

[0209] Of course, the first color temperature threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0210] In another possible implementation, the first color temperature threshold may alternatively be a fixed value and does not vary with the color temperature of the ambient light.

[0211] Optionally, the first color temperature threshold may be 3800.

[0212] Optionally, the first color temperature threshold may be 3850.

[0213] Optionally, the first color temperature threshold may be 3750.

[0214] Of course, the first color temperature threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0215] In a possible implementation, the second color temperature threshold may vary depending on the color temperature of the ambient light.

[0216] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+200, where "*" is a multiplication sign and "+" is a plus sign.

[0217] For example, if the color temperature of the ambient light is 4000K, the second color temperature threshold corresponding to the color temperature of the ambient light is 1.2*4000K+200=5000K.

[0218] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.25*ambient light color temperature+200.

[0219] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.15*ambient light color temperature+200.

[0220] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+150.

[0221] Optionally, the second color temperature threshold may satisfy: second color temperature threshold=1.2*ambient light color temperature+100.

[0222] Of course, the second color temperature threshold may alternatively satisfy another relationship, which is not limited in this embodiment of the present application.

[0223] In another possible implementation, the second color temperature threshold may be a fixed value and does not vary with the color temperature of the ambient light.

[0224] Optionally, the second color temperature threshold may be 4300.

[0225] Optionally, the second color temperature threshold may be 4200.

[0226] Optionally, the second color temperature threshold may be 4400.

[0227] Of course, the second color temperature threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0228] In addition, the display method provided in this embodiment of the present application can adjust the luminance of the display to a value between a first color temperature threshold and a second color temperature threshold based on the color temperature of the ambient light, and can adjust the color temperature of the display to a value between the first color temperature threshold and the second color temperature threshold, thereby making the color temperature of the display closer to the color temperature of printed paper under the same ambient light. It can be seen that having the appearance of content displayed on a display closer to the appearance of paper means a more comfortable reading experience and less eye fatigue. Therefore, to reduce visual impairment caused by a user using an electronic display for a long period of time, the color temperature of the display is adjusted to match the appearance of printed paper under the same environment.

[0229] S303: The display brightness and the display color temperature of the display are adjusted based on the display information of the ambient light.

[0230] A specific method for adjusting the display brightness of the display based on the display information of the ambient light may be any method devised by a person skilled in the art.

[0231] For example, if the display luminance of the display is lower than the first luminance threshold, the display luminance of the display is set to the first luminance threshold. adjustment Furthermore, when the display luminance of the display is greater than the second luminance threshold, the display luminance of the display can be set to the second luminance threshold. adjustment It is possible.

[0232] For example, the luminance of the ambient light is 300 lux, the first luminance threshold corresponding to the luminance of the ambient light is 75 nits, and the first luminance threshold corresponding to the luminance of the ambient light is 205 nits. If the current display luminance of the display is 60 nits and the current display luminance of the display is less than the first luminance threshold of 75 nits, the luminance of the display is adjusted to 75 nits.

[0233] In another example, the luminance of the ambient light is 300 lux, the first luminance threshold corresponding to the luminance of the ambient light is 75 nits, and the second luminance threshold corresponding to the luminance of the ambient light is 205 nits. If the current display luminance of the display is 225 nits and the current display luminance of the display is higher than the second luminance threshold of 205 nits, the luminance of the display is adjusted to 205 nits.

[0234] As another example, the change in brightness of the display may be determined based on a relationship between the brightness of the display and the brightness of the ambient light.

[0235] The line corresponding to the relational expression representing the display brightness and the brightness of ambient light is located between a first brightness line corresponding to the relational expression between the first brightness threshold and the brightness of ambient light, and a second brightness line corresponding to the relational expression between the second brightness threshold and the brightness of ambient light.

[0236] For example, as shown in FIG. 4, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is: the first brightness threshold and Ambient Light Brightness and and a second luminance line corresponding to the relational expression between the second luminance threshold and the luminance of the ambient light.

[0237] As another example, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is: the first brightness threshold and It may be a straight line 2 between a first luminance line corresponding to the relational expression with the luminance of ambient light and a second luminance line corresponding to the relational expression with the second luminance threshold and the luminance of ambient light.

[0238] As another example, as shown in FIG. 4, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is the first brightness threshold and It may be a straight line 3 between a first luminance line corresponding to the relational expression with the luminance of ambient light and a second luminance line corresponding to the relational expression with the third luminance threshold and the luminance of ambient light.

[0239] As another example, as shown in FIG. 4, the line corresponding to the equation representing the relationship between the display brightness and the brightness of ambient light may be a curve between a first brightness line corresponding to the equation representing the relationship between the brightness of ambient light and a second brightness line corresponding to the equation representing the relationship between the second brightness threshold and the brightness of ambient light.

[0240] As another example, as shown in FIG. 4, the line corresponding to the relational expression representing the display luminance and the luminance of the ambient light is the first brightness threshold and It may be a polygonal line 2 between a first luminance line corresponding to the relational expression with the luminance of ambient light and a second luminance line corresponding to the relational expression with the second luminance threshold and the luminance of ambient light.

[0241] The specific method for adjusting the display color temperature of the display based on the display information of the ambient light may be any method devised by a person skilled in the art.

[0242] For example, if the display color temperature of the display is lower than the first color temperature threshold, the display color temperature is set to the first color temperature threshold. adjustment In addition, if the display color temperature of the display is higher than the second color temperature threshold, the display color temperature is set to the second color temperature threshold. adjustment It is possible.

[0243] For example, the color temperature of the ambient light is 4000 K, the first color temperature threshold corresponding to the color temperature of the ambient light is 3820 K, and the second color temperature threshold corresponding to the color temperature of the ambient light is 5000 K. If the current display color temperature of the display is 3500 K and the current display color temperature of the display is lower than the first color temperature threshold of 3820 K, the color temperature of the display is adjusted to 3820 K.

[0244] In another example, the color temperature of the ambient light is 4000K, the first color temperature threshold corresponding to the color temperature of the ambient light is 3820K, and the second color temperature threshold corresponding to the color temperature of the ambient light is 3820K. 2 The color temperature threshold is 5000 K. If the current display color temperature of the display is 5500 K and the current display color temperature of the display is higher than the first color temperature threshold of 5000 K, the color temperature of the display is adjusted to 5000 K.

[0245] As another example, the change in the color temperature of the display can be determined based on a relationship between the display color temperature and the color temperature of the ambient light.

[0246] The line corresponding to the equation representing the relationship between the display color temperature and the color temperature of the ambient light is located between the first color temperature line corresponding to the equation representing the relationship between the first color temperature threshold and the color temperature of the ambient light, and the second color temperature line corresponding to the equation representing the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0247] For example, as shown in Figure 5, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is: First color temperature threshold and Ambient light color temperature and and a straight line 1 between a first color temperature line corresponding to the relational expression above and a second color temperature line corresponding to the relational expression between the second color temperature threshold and the color temperature of the ambient light.

[0248] For example, as shown in Figure 5, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is: First color temperature threshold and Ambient light color temperature and and a straight line 2 between a first color temperature line corresponding to the relational expression above and a second color temperature line corresponding to the relational expression between the second color temperature threshold and the color temperature of the ambient light.

[0249] For example, as shown in Figure 5, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is: First color temperature threshold and Ambient light color temperature and and a straight line 3 between a first color temperature line corresponding to the relational expression above and a second color temperature line corresponding to the relational expression between the second color temperature threshold and the color temperature of the ambient light.

[0250] As another example, as shown in FIG. 5, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is First color temperature threshold and Ambient light color temperature and and a second color temperature line corresponding to the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0251] In another example, as shown in FIG. 5, the line corresponding to the relational expression representing the display color temperature and the color temperature of the ambient light is First color temperature threshold and Ambient light color temperature and and a second color temperature line corresponding to the relationship between the second color temperature threshold and the color temperature of the ambient light.

[0252] The display method provided in the embodiment of the present application can adjust the color temperature and brightness of the display based on the brightness and color temperature of the ambient light, so that after adjusting the color temperature and brightness, a display that is more gentle on the user's eyes can be provided, thereby reducing visual impairment caused by the user using an electronic display for a long time.

[0253] For example, the color temperature and brightness of the display can be adjusted based on the brightness and color temperature of the ambient light, so that the appearance of the content displayed on the display matches the appearance of printed paper under the same environment. It is understood that having the appearance of the content displayed on the display close to the appearance of paper means that reading is comfortable and reduces eye fatigue. Therefore, the color temperature and brightness of the display can be adjusted so that the appearance of the content displayed on the display matches the appearance of printed paper under the same environment. This can reduce visual impairment caused by users using electronic displays for long periods of time.

[0254] In a possible implementation, the method may further include the following steps:

[0255] S304: The electronic device performs color gamut mapping for the image to be displayed on the display based on the target three-dimensional mapping table.

[0256] The target three-dimensional mapping table includes a plurality of colors and mapped colors corresponding to the plurality of colors.

[0257] The image to be displayed may be an image to be displayed that includes text, may be a pure picture, or may be an image that includes text and a picture.

[0258] In addition, the color gamut of the image to be displayed may be mapped based on the target 3D mapping table to change the color of each pixel of the image to be displayed so that the colors of the image after gamut mapping are more pleasing to the user's eyes, thereby further reducing visual impairment caused by prolonged use of an electronic display.

[0259] For example, a color gamut mapping can be performed on a target image based on a target 3D mapping table, mapping the color of each pixel of the target image to the color of printed paper, so that the color of the target image matches the color of printed paper under the same environment. It can be seen that having the appearance of content displayed on a display that is close to the appearance of paper means a comfortable reading experience and less eye strain. Therefore, matching the color temperature of a display to the appearance of printed paper under the same environment can further reduce visual impairment caused by users using an electronic display for long periods of time.

[0260] In a possible implementation, a mapped color corresponding to the color of each pixel of the image to be displayed is first determined in a target 3D mapping table, and then the color of each pixel of the image to be displayed is mapped to the mapped color.

[0261] For example, the color of pixel 1 in the image to be displayed is represented as (R1, G1, B1) in RGB color mode. The mapped color in the target 3D mapping table corresponding to (R1, G1, B1) is represented as (R2, G2, B2) in RGB color mode. Therefore, after gamut mapping, pixel 1 in the image to be displayed changes from (R1, G1, B1) to (R2, G2, B2).

[0262] It can be seen that in the display method provided in this embodiment of the present application, a target three-dimensional mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors may be obtained, and then color gamut mapping may be performed on the image to be displayed based on the target three-dimensional mapping table, so that the colors of the image to be displayed are more pleasant to the user's eyes, thereby reducing the visual impairment caused by the user using the electronic display for a long time.

[0263] In a possible implementation, the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and under the same ambient light, a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card is equal to or less than a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

[0264] For example, the target three-dimensional mapping table includes a first color (color 1) and a first mapped color (color 2) corresponding to the first color. Under the same ambient light, the LAB data corresponding to the RGB data of color 1 displayed on the display is (L1, A1, B1), and the LAB data corresponding to the RGB data of color 2 displayed on the paper color card is (L2, A2, B2). In this case, the color difference between the first color (color 1) displayed on the display and the first mapped color (color 2) displayed on the paper color card is equal to or less than the color difference threshold.

[0265] Color 1 on the display and the color on the paper color card 2 The color difference between (L1, A1, B1) and (L2, A2, B3) may be determined based on (L1, A1, B1) and (L2, A2, B3) as follows:

number

[0266] Furthermore, under the same ambient light, the color difference between the first color displayed on the display and the first mapped color displayed on the paper color card is less than the color difference threshold. This indicates that under the same ambient light, the color difference between the first color displayed on the display and the first mapped color displayed on the paper color card is small. Color gamut mapping is performed on the target image based on the target 3D mapping table, and the color of each pixel of the target image is changed. After color gamut mapping, the color of the target image displayed on the display under the same environment can be matched to the color of the printed paper. This can reduce visual impairment caused by users using electronic displays for long periods of time.

[0267] Optionally, the color difference threshold is 13.

[0268] Optionally, the color difference threshold may alternatively be three.

[0269] Of course, the color difference threshold may alternatively be another value, which is not limited in this embodiment of the present application.

[0270] Optionally, the paper color card may include a color card printed on offset paper using a four-color printer and / or a color card printed on coated paper using a four-color printer.

[0271] S305: The electronic device obtains a target three-dimensional mapping table.

[0272] In one possible implementation, at least one color gamut group may be first obtained, and then a target three-dimensional mapping table may be determined based on the at least one color gamut group, where each color gamut group includes the color gamut of the display and the color gamut of a paper color card under the same ambient light.

[0273] Optionally, the paper color card comprises at least one of a Pantone printing color card, an uncoated color card, and a coated color card.

[0274] It should be noted that paper color cards are more comfortable to read than electronic displays. Therefore, a target 3D mapping table containing the mapping relationship between the colors on the paper color card and the colors on the display is generated based on the color gamut of the display and the color gamut of the paper color card under the same ambient light. By performing color gamut mapping on the image to be displayed based on this 3D mapping table, the colors of the image to be displayed become more comfortable for the user's eyes. This reduces visual impairment caused by users using electronic displays for long periods of time.

[0275] It should be noted that the specific method for determining the target three-dimensional mapping table based on at least one color gamut group may be any one or more methods devised by a person skilled in the art.

[0276] For example, a hue-preserving minimum (HPMin) ΔE algorithm may be used to determine a target three-dimensional mapping table based on at least one color gamut group.

[0277] The color gamut includes color data of multiple colors (for example, RGB data).

[0278] In a possible implementation, the electronic device may execute the above-described display method only in the e-book display mode.

[0279] The electronic device may determine display information based on environmental information and adjust a background color displayed on the electronic device. The electronic device may perform color gamut mapping of the image to be displayed based on a target 3D mapping table and adjust a foreground color displayed on the electronic device. White displayed on the electronic device is the background color, and colors other than white displayed on the electronic device are the foreground colors.

[0280] A display device configured to perform the above-described display method will now be described with reference to FIG.

[0281] It can be understood that to implement the aforementioned functions, the display device includes corresponding hardware and / or software modules that perform the functions. With reference to the exemplary algorithms described in the embodiments disclosed herein, the embodiments of the present application may be implemented in the form of hardware or a combination of hardware and computer software. Whether the functions are implemented by hardware or hardware driven by computer software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application with reference to the embodiments, but such implementation should not be considered to go beyond the scope of the embodiments of the present application.

[0282] In the embodiment of the present application, the display device may be divided into functional modules based on the above-mentioned exemplary methods. For example, the functional modules may be obtained through division based on corresponding functions, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware. It should be noted that the module division in the present embodiment is an example and is merely a logical functional division. In actual implementation, there may be other division methods.

[0283] 6 is a diagram showing a possible configuration of a display device in the above embodiment, where each functional module is obtained by dividing the functional modules based on their corresponding functions. As shown in FIG. 6, a display device 600 may include a transceiver unit 601 and a processing unit 602.

[0284] The transceiver unit 601 is configured to obtain environmental information of the ambient light, where the environmental information includes the brightness of the ambient light and the color temperature of the ambient light.

[0285] The processing unit 602 is configured to determine display information of ambient light based on the environmental information, and adjust the display brightness and display color temperature of the display based on the display information, where the display information includes a brightness range corresponding to the brightness of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

[0286] Optionally, the luminance range corresponding to the luminance of the ambient light is greater than or equal to a first luminance threshold and less than or equal to a second luminance threshold.

[0287] Optionally, the color temperature range corresponding to the color temperature of the ambient light is greater than or equal to a first color temperature threshold and less than or equal to a second color temperature threshold.

[0288] Optionally, the first brightness threshold meets: First brightness threshold=0.25*Ambient light brightness, where "*" is a multiplication sign.

[0289] Optionally, the first brightness threshold is 75.

[0290] Optionally, the second brightness threshold satisfies: second brightness threshold=0.35*ambient light brightness+100, where "*" is a multiplication sign and "+" is a plus sign.

[0291] Optionally, the second brightness is 115.

[0292] Optionally, the first color temperature threshold satisfies: first color temperature threshold=ambient light color temperature-180, where "-" is a minus sign.

[0293] Optionally, the first color temperature threshold is 3800.

[0294] Optionally, the second color temperature threshold satisfies: second color temperature threshold=1.2*ambient light color temperature+200, where "*" is a multiplication sign and "+" is a plus sign.

[0295] Optionally, the second color temperature threshold is 4300.

[0296] In a possible implementation, the processing unit 602 is further configured to perform color gamut mapping on the image to be displayed based on a target 3D mapping table, the target 3D mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

[0297] In a possible implementation, the processing unit 602 is configured, in particular, to determine a mapped color in the target three-dimensional mapping table that corresponds to the color of each pixel in the image to be displayed, and to map the color of each pixel of the image to be displayed to the mapped color.

[0298] In a possible implementation, the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and under the same ambient light, a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card is equal to or less than a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

[0299] Optionally, the color difference threshold is 13.

[0300] In a possible implementation, the transceiver unit 601 is further configured to obtain a target 3D mapping table, where the target 3D mapping table includes a plurality of colors and mapped colors corresponding to the plurality of colors.

[0301] In a possible implementation, the transceiver unit 601 is configured, inter alia, to obtain at least one color gamut group, each color gamut group including the color gamut of the display and the color gamut of a paper color card under the same ambient light, and to determine a target three-dimensional mapping table based on the at least one color gamut group.

[0302] Optionally, the paper color card comprises a color card printed on offset paper using a four-color printer and / or a color card printed on coated paper using a four-color printer.

[0303] An embodiment of the present application further provides a chip. Figure 7 is a diagram of the structure of a chip 700. The chip 700 includes one or more processors 701 and an interface circuit 702. Optionally, the chip 700 may further include a bus 703.

[0304] The processor 701 may be an integrated circuit chip and has signal processing capabilities. display The steps of the method may be accomplished using hardware integrated logic circuitry within the processor 701 or using instructions in the form of software.

[0305] Optionally, the processor 701 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or another programmable logic element, a discrete gate or transistor logic element, or a discrete hardware component. The processor 701 may implement or perform the methods and steps of the disclosed embodiments of this application. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0306] The interface circuit 702 may be configured to transmit or receive data, instructions, or information. The processor 701 may process the data, instructions, or other information received via the interface circuit 702 and transmit the resulting information via the interface circuit 702.

[0307] Optionally, the chip further includes memory, including read-only memory and random access memory, that can provide operating instructions and data for the processor, and a portion of the memory can further include non-volatile random access memory (NVRAM).

[0308] Optionally, the memory stores executable software modules or data structures, and the processor can perform corresponding operations by invoking the operating instructions stored in the memory (the operating instructions may be stored in an operating system).

[0309] Optionally, in the embodiments of the present application, the chip may be used in a display device. Optionally, the interface circuit 702 may be configured to output the execution result of the processor 701. display For the method, please refer to the above embodiment, and the details will not be described again here.

[0310] The functions corresponding to the processor 701 and the interface circuit 702 may be realized by hardware design, by software design, or by a combination of software and hardware, but this is not limited here.

[0311] The embodiment of the present application further provides a display device, the device including at least one processor, when the at least one processor executes the program code or instructions, the above-mentioned related method steps are display It is carried out to carry out the method.

[0312] Optionally, the device may further include at least one memory, wherein the at least one memory is configured to store program codes or instructions.

[0313] An embodiment of the present application further provides a computer storage medium, which stores computer instructions, which, when executed on a display device, enable the display device to perform the steps of the associated method described above, display The method is carried out.

[0314] An embodiment of the present application further provides a computer program product, which, when run on a computer, enables the computer to perform the relevant steps described above, display The method is carried out.

[0315] The embodiments of the present application further provide a display device. The device may be specifically a chip, an integrated circuit, a component, or a module. Specifically, the device may include a connected processor and a memory configured to store instructions, or the device may include at least one processor configured to retrieve instructions from an external memory. When the device is operated, the processor may execute the instructions, and the chip may perform the display of the display device in the above-mentioned method embodiment. display Make sure to implement the method.

[0316] It should be understood that in various embodiments of the present application, the sequence numbers of the above processes do not indicate the order of execution, and the order of execution of the processes should be determined based on the functions and internal logic of the processes, and does not constitute a limitation on the implementation process of the embodiments of the present application.

[0317] Those skilled in the art can easily understand that the exemplary units and algorithm steps described with reference to the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but this implementation should not be considered to go beyond the scope of the present application.

[0318] For the purpose of convenience and concise description, the detailed operating processes of the aforementioned systems, devices and units may be clearly understood by those skilled in the art by referring to the corresponding processes in the aforementioned method embodiments, and the details will not be described again here.

[0319] In some embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the described device embodiments are merely examples. For example, the division into units is merely a logical division of function, and actual implementation may involve other divisions. For example, multiple units or components may be combined or integrated into another system, or some functions may be omitted or not performed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be implemented through some interfaces. Indirect couplings or communication connections between devices or units may be implemented in an electrical, mechanical, or other form.

[0320] The aforementioned units described as separate parts may or may not be physically separated. The parts shown as units may or may not be physical units, and may be located in one place or distributed among multiple network units. Some or all of the units may be selected based on actual requirements to achieve the purpose of the solution of the embodiment.

[0321] Furthermore, the functional units in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist physically alone, or two or more units may be integrated into one unit.

[0322] When a function is implemented in the form of a software functional unit and sold or used as an independent product, the function may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or a portion of the contribution to the current art, or all or part of the technical solution, may be implemented in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method described in the embodiments of the present application. The storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0323] The above description is merely a specific implementation of the present application and is not intended to limit the scope of protection of the present application. Any modifications or replacements that are readily conceived by those skilled in the art within the technical scope disclosed in the present application should be embraced within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. 1. A display method applied to an electronic device, the electronic device including a display, the method comprising: acquiring environmental information of an ambient light, the environmental information including a luminance of the ambient light and a color temperature of the ambient light; determining display information of the ambient light based on the environmental information, the display information including a luminance range corresponding to a luminance of the ambient light and a color temperature range corresponding to a color temperature of the ambient light; adjusting the display luminance and the display color temperature of the display based on the display information; A method comprising:

2. The method of claim 1 , wherein the luminance range corresponding to the luminance of the ambient light is greater than or equal to a first luminance threshold and less than or equal to a second luminance threshold.

3. The method according to claim 1 or 2, wherein the color temperature range corresponding to the color temperature of the ambient light is equal to or greater than a first color temperature threshold and equal to or less than a second color temperature threshold.

4. The method according to any one of claims 1 to 3, wherein the first luminance threshold satisfies: first luminance threshold = 0.25 * luminance of the ambient light, where "*" is a multiplication sign.

5. The method according to any one of claims 1 to 3, wherein the first luminance threshold is 75.

6. 6. The method according to claim 1, wherein the second brightness threshold satisfies: second brightness threshold=0.35*ambient light brightness+100, where "*" is a multiplication sign and "+" is a plus sign.

7. The method according to any one of claims 1 to 5, wherein the second luminance is 115.

8. The method according to any one of claims 1 to 7, wherein the first color temperature threshold satisfies: first color temperature threshold=color temperature of the ambient light-180, where "-" is a minus sign.

9. The method according to any one of claims 1 to 7, wherein the first color temperature threshold is 3800.

10. 10. The method according to claim 1, wherein the second color temperature threshold satisfies: second color temperature threshold=1.2*color temperature of the ambient light+200, where "*" is a multiplication sign and "+" is a plus sign.

11. The method according to any one of claims 1 to 9, wherein the second color temperature threshold is 4300.

12. The method comprises:

11. The method of claim 1, further comprising: performing color gamut mapping on the image to be displayed on the display based on a target three-dimensional mapping table, the target three-dimensional mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

13. performing color gamut mapping on the display target image based on a target three-dimensional mapping table, determining a mapped color in the target three-dimensional mapping table that corresponds to the color of each pixel in the to-be-displayed image; mapping the color of each pixel of the image to be displayed to the mapped color; 13. The method of claim 12, comprising:

14. 14. The method of claim 12 or 13, wherein the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card under the same ambient light is less than or equal to a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

15. The method of claim 14 , wherein the color difference threshold is 13.

16. The method comprises:

16. The method of claim 1, further comprising obtaining the target three-dimensional mapping table, the target three-dimensional mapping table including the plurality of colors and the mapped colors corresponding to the plurality of colors.

17. The step of obtaining the target three-dimensional mapping table includes: obtaining at least one color gamut group, each color gamut group including the color gamut of the display and the color gamut of the paper color card under the same ambient light, wherein the paper color card includes at least one of the Pantone printed color card, the uncoated color card, or the coated color card; determining the target three-dimensional mapping table based on the at least one color gamut group; 17. The method of claim 16, comprising:

18. A display device for use in an electronic device, the electronic device including a display, the device including a transceiver unit and a processing unit; the transceiver unit is configured to acquire environmental information of an ambient light, the environmental information including a luminance of the ambient light and a color temperature of the ambient light; A display device, wherein the processing unit determines display information of the ambient light based on the environmental information, and adjusts the display brightness and display color temperature of the display based on the display information, the display information including a brightness range corresponding to the brightness of the ambient light and a color temperature range corresponding to the color temperature of the ambient light.

19. 20. The device of claim 18, wherein the luminance range corresponding to the luminance of the ambient light is greater than or equal to a first luminance threshold and less than or equal to a second luminance threshold.

20. 20. The device of claim 18 or 19, wherein the color temperature range corresponding to the color temperature of the ambient light is equal to or greater than a first color temperature threshold and equal to or less than a second color temperature threshold.

21. The device of any one of claims 18 to 20, wherein the first luminance threshold satisfies: first luminance threshold = 0.25 * luminance of the ambient light, where "*" is a multiplication sign.

22. 21. The device of claim 18, wherein the first brightness threshold is 75.

23. The device of any one of claims 18 to 22, wherein the second brightness threshold satisfies: second brightness threshold = 0.35 * brightness of the ambient light + 100, where "*" is a multiplication sign and "+" is a plus sign.

24. 23. The device of any one of claims 18 to 22, wherein the second luminance is 115.

25. The device according to any one of claims 18 to 24, wherein the first color temperature threshold satisfies: first color temperature threshold = color temperature of the ambient light - 180, where "-" is a minus sign.

26. 25. The device of any one of claims 18 to 24, wherein the first color temperature threshold is 3800.

27. 27. The device of claim 18, wherein the second color temperature threshold satisfies: second color temperature threshold=1.2*color temperature of the ambient light+200, where "*" is a multiplication sign and "+" is a plus sign.

28. 27. The device of claim 18, wherein the second color temperature threshold is 4300.

29. The processing unit 29. The apparatus of claim 18, further configured to perform color gamut mapping on a target image for display on the display based on a target three-dimensional mapping table, the target three-dimensional mapping table including a plurality of colors and mapped colors corresponding to the plurality of colors.

30. The processing unit may in particular determining a mapped color in the target three-dimensional mapping table that corresponds to the color of each pixel in the to-be-displayed image; mapping the color of each pixel of the image to be displayed to the mapped color; 30. The device of claim 29, configured to:

31. 30. The apparatus of claim 28 or 29, wherein the target three-dimensional mapping table includes a first color and a first mapped color corresponding to the first color, and wherein, under the same ambient light, a color difference between the first color displayed on the display and the first mapped color displayed on a paper color card is less than or equal to a color difference threshold, and the paper color card includes at least one of a Pantone printed color card, an uncoated color card, or a coated color card.

32. 32. The device of claim 31, wherein the color difference threshold is 13.

33. The transceiver unit 33. The apparatus of claim 18, further configured to obtain the target three-dimensional mapping table, the target three-dimensional mapping table including the plurality of colors and the mapped colors corresponding to the plurality of colors.

34. The transceiver unit may in particular obtaining at least one color gamut group, each color gamut group including a color gamut of the display and a color gamut of the paper color card under the same ambient light, the paper color card including at least one of the Pantone printed color card, the uncoated color card, or the coated color card; determining the target three-dimensional mapping table based on the at least one color gamut group; 34. The device of claim 33, configured to:

35. a display device including at least one processor and a memory; A display device, wherein said at least one processor executes programs or instructions stored in said memory, enabling said display device to implement a method according to any one of claims 1 to 17.

36. 18. A computer readable storage medium configured to store a computer program, the computer program being configured to, when executed by a computer or a processor, enable the computer or the processor to implement a method according to any one of claims 1 to 17.

37. 18. A computer program product, the computer program product comprising instructions that, when executed on a computer or a processor, enable the computer or the processor to implement a method according to any one of claims 1 to 17.

Images