CN106162134B - Display method and display device - Google Patents
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Abstract
The invention discloses a display method and a display device, wherein the display method adjusts display data of a display device under different environment light sources, and the display method comprises the steps of obtaining environment illumination data, display device characteristic data and the display data; and performing visibility adjustment according to the ambient illumination data, the display device characteristic data and the display data to enable a display condition corresponding to the display data to meet an image threshold value of different ambient light sources; the visibility adjustment work is to correspondingly adjust the dynamic backlight data, the simulation gamma data and the image processing data according to a human eye vision model, so that the adjusted display data meets the image threshold value.
Description
Technical Field
The present invention relates to a display method and a display device, and more particularly, to a display method and a display device capable of adjusting display data under different ambient light sources.
Background
With the increasing popularity of mobile devices, users have historically viewed or used display devices only in indoor environments, but it has now evolved that most users hold a mobile device every minute and second, and are momentarily hands-free regardless of whether they are in an indoor environment or an outdoor environment. However, compared to the indoor environment, the outdoor environment may have a very high illumination of the ambient light source due to the sufficient sunlight. However, the size and cost of the mobile device are limited, and users expect to have a mobile device with excellent endurance, so that the display panel carried by the mobile device is designed to output lower power and only meet the minimum acceptable range for human eyes. In this case, once the sunlight of the outdoor environment is directly irradiated and interlaced with the reflection of the surface of the display device, the adaptability of the light and the color of the human eye will be changed, and the visibility corresponding to the display panel will be greatly reduced.
Therefore, it is an important subject of the art to provide a display method and a display apparatus capable of adjusting display data under different ambient light sources, so that a user can use a mobile device at will in both indoor environment and outdoor environment.
Disclosure of Invention
Therefore, the present invention is directed to a display method and a display device capable of adjusting display data under different ambient light sources.
The invention discloses a display method, which is used for adjusting display data of a display device under different environment light sources and comprises the steps of obtaining environment illumination data, display device characteristic data and the display data; and performing visibility adjustment according to the ambient illumination data, the display device characteristic data and the display data to enable a display condition corresponding to the display data to meet an image threshold value corresponding to different ambient light sources; the visibility adjustment work is to correspondingly adjust the dynamic backlight data, the simulation gamma data and the image processing data according to a human eye vision model, so that the adjusted display data meets the image threshold value.
The invention also discloses a display device for displaying display data under different environment light sources, which comprises a processor; a display panel coupled to the processor and including a plurality of pixel units; and a storage device coupled to the processor and storing a program code for performing a display method, the display method comprising obtaining an ambient illumination data, a display device characteristic data, and the display data; and performing visibility adjustment according to the ambient illumination data, the display device characteristic data and the display data to enable a display condition corresponding to the display data to meet an image threshold value corresponding to different ambient light sources; the visibility adjustment work is to correspondingly adjust the dynamic backlight data, the simulation gamma data and the image processing data according to a human eye vision model, so that the adjusted display data meets the image threshold value.
Drawings
Fig. 1 is a schematic diagram of a display device according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating a process according to an embodiment of the invention.
Fig. 3 is a flowchart illustrating a human eye light adaptation process according to an embodiment of the invention.
Fig. 4 is a flowchart of a process of eye color adaptability according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a liquid crystal voltage transmittance curve corresponding to normally white liquid crystal according to an embodiment of the present invention.
Fig. 6 is a diagram illustrating eye adaptability data according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating comparison between original analog gamma data and adjusted analog gamma data according to the present embodiment.
FIG. 8 is a diagram illustrating image processing data according to an embodiment of the invention.
Wherein the reference numerals are as follows:
10 display device
100 processor
102 display panel
104 storage device
20 shows the procedure
200. 202, 204, 206, 300, 302, 304, step
306、308、310、400、402、404、406、
408
30 human eye light adaptability process
40 human eye color adaptability process
C1, C2 and C3 mapping functions
G _ O raw analog gamma data and
g _ N adjusted analog gamma data
Detailed Description
Certain terms are used throughout the description and following claims to refer to particular components. As one of ordinary skill in the art will appreciate, manufacturers may refer to a component by different names. In the present specification and the claims to follow, differences in names are not used as means for distinguishing components, but are used as a basis for distinguishing components in terms of differences in functions. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. Moreover, the term "coupled" is intended to include any direct or indirect electrical connection. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices and connections.
Referring to fig. 1, fig. 1 is a schematic diagram of a display device 10 according to an embodiment of the invention. As shown in fig. 1, the display apparatus 10 of the present embodiment includes a processor 100, a display panel 102 and a storage device 104. Preferably, the processor 100 in the present embodiment integrates the functions of a central processing unit and/or an image processor, is coupled to the display panel 102 and the storage device 104, and transmits the control signal and the display data to the display panel 102 and the storage device 104 to provide the related frequency signal and the display signal. The display panel 102 includes a plurality of pixel units, and displays or plays a display data under the control of the processor 100. In the embodiment, the display data may be obtained through a wired transmission or a wireless transmission, and provided by a multimedia provider or an internet platform, but not limited to the scope of the present invention; in addition, the display data of the present embodiment may be composed of a plurality of display frame data, each display frame data includes a plurality of pixel display data, and the display data is displayed by a plurality of pixel units corresponding to the display panel 102; of course, in another embodiment, the display data may also be a plurality of multimedia files (e.g., a digital video file or a picture file), and is pre-stored in the storage device 104. Accordingly, the plurality of pixel units of the display panel 102 display the data corresponding to the plurality of pixels of the display data by adaptive control of the clock signal.
Furthermore, the storage device 104 in this embodiment stores a program code, and the program code is controlled by the processor 100 to perform a display method applicable to the display apparatus 10. Accordingly, when a user operates the display apparatus 10 in an indoor environment or an outdoor environment (or the user can move from the outdoor environment to the indoor environment or from the indoor environment to the outdoor environment), the display apparatus 10 adaptively performs an adjustment operation of the display data according to the display method provided by the embodiment, so as to avoid a situation that the visibility of the display apparatus 10 is reduced due to direct sunlight.
It should be noted that the present embodiment does not limit what is the electronic product used to carry the display apparatus 10, or the display apparatus 10 itself can work independently, that is, according to different requirements of users or product designers, the display apparatus 10 can work as an accessory device and be integrated into an electronic product (such as a mobile device, a tablet device, a wearable electronic product, or a notebook computer) to increase the visibility function of the electronic product, and certainly, the display apparatus 10 can also be an electronic system (such as a liquid crystal display) and be coupled to an electronic computing system (such as a personal computer or a multimedia device), and when the two support each other to work, it is within the scope of the present invention to provide optimized display workers correspondingly.
Further, the display method applied by the display apparatus 10 of the present embodiment can be summarized as a display process 20, and is compiled into program codes and stored in the storage device 104, as shown in fig. 2, the display process 20 includes the following steps.
Step 200: and starting.
Step 202: the processor 100 of the display device 10 obtains ambient illumination data, display device characteristic data, and display data.
Step 204: the processor 100 performs a visibility (visibility) adjustment operation according to the ambient illumination data, the display device characteristic data, and the display data, so that a display condition corresponding to the display data satisfies an image threshold of different ambient light sources.
Step 206: and (6) ending.
Once the user initiates the display operation of the display device 10, the display process 20 is initiated (i.e., step 200). In step 202, the processor 100 of the display device 10 in this embodiment obtains the ambient illumination data, the display device characteristic data and the display data. Preferably, the display device 10 is further coupled to an illuminance measurement module, so that the processor 100 can obtain the ambient illuminance data in the environment where the display device 10 is disposed by using the photosensitive element of the illuminance measurement module; of course, in another embodiment, the display device 10 may also be integrated with an illuminance measuring module therein, and after the display device 10 is started, the ambient illuminance data of the surrounding environment is automatically obtained. In addition, the ambient illumination data in this embodiment includes an ambient light intensity value, which includes the magnitude of the ambient light intensity value, so that the processor 100 can determine that the user is currently located in an indoor environment or an outdoor environment according to the acquired ambient illumination data, and meanwhile, confirm the ambient light source value of the surrounding environment for performing subsequent related work.
In addition, the display device 10 of the present embodiment may utilize a luminance measurement module to obtain the display device characteristic data, and the display device characteristic data further includes an original gamma curve. Preferably, before the display device 10 is manufactured, a manufacturer may measure the characteristic data of the display device corresponding to the display device 10 and correspondingly obtain the original gamma curve of the display device 10; in addition, the original gamma curve can also form a lookup table, and the manufacturer can store the lookup table of the original gamma curve in the storage device 104 in advance. For example, the processor 100 may selectively obtain the display data from a multimedia provider or an internet platform, or obtain a plurality of stored multimedia files from the storage device 104, which all fall within the scope of the present invention.
Accordingly, in step 204, after receiving the ambient illumination data, the display device characteristic data and the display data, the processor 100 performs a visibility adjustment operation to adjust a display mode of the display panel 102 for playing the display data, so that the display condition corresponding to the display data can satisfy the image threshold values of different ambient light sources. Preferably, the image threshold in the present embodiment may be a contrast threshold, a saturation threshold, a sharpness threshold and/or an image difference threshold to indicate various ambient light sources, but is not intended to limit the scope of the present invention. In addition, the display conditions of the embodiment include dynamic backlight data, analog Gamma (Gamma) data and image processing data, and accordingly, the visibility adjustment operation adjusts the display conditions of the dynamic backlight data, the analog Gamma data and the image processing data according to a human eye vision model, so that the adjusted display data satisfies the image threshold.
It is to be noted that, the human eye vision model in this embodiment further includes various types of adaptive operations such as a human eye light adaptive operation, a human eye color adaptive operation, a human eye space clock adaptive operation, and/or a human eye object boundary detection characteristic operation, in this case, once step 204 is performed, the adaptive operation in this embodiment is to input environmental light source pointer parameters such as environmental illumination data, display device characteristic data, and display data into the human eye vision model, and simulate and calculate a visual frame actually perceived by human eyes through the adaptive operations of the human eye vision model to correspondingly generate a simulated human eye sensing data, where the simulated human eye sensing data may correspond to a plurality of gray scale values of the plurality of pixel display data.
Then, after the visibility adjustment is completed, the processor 100 outputs the adjusted dynamic backlight data, the analog gamma data, the image processing data, and the like to the display panel 102 for displaying/displaying the display data. Accordingly, the user is not limited to operating the display device 10 in an outdoor environment or an indoor environment, and therefore, the visibility of the display panel 102 may be reduced due to strong sunlight irradiation in the outdoor environment, or when the user operates the display device 10 indoors, the display device 10 may operate the display panel 102 at the optimum display brightness for human eyes, so as to adjust the display device 10 to operate at the optimum output power, thereby saving unnecessary energy consumption.
In order to simplify how the human eye vision model is used to correspondingly adjust the dynamic backlight data, the analog gamma data and the image processing data in the visibility adjustment operation of the present embodiment, and enable the output display data to satisfy the image threshold values of various environmental light sources, the following demonstrates that the human eye vision model in an embodiment includes two kinds of adaptability operations, namely human eye light adaptability operation and human eye color adaptability operation, and the operation sequence is that the human eye light adaptability operation is performed first, then the human eye color adaptability operation is performed, the dynamic backlight data and the analog gamma data are adjusted by the human eye light adaptability operation, and the image processing data are adjusted by the human eye color adaptability operation. Of course, the number of adaptive tasks, the sequence of the adaptive tasks, or what display conditions are adjusted by which adaptive tasks included in the human eye visual model in this embodiment are not intended to limit the scope of the present invention.
It should be noted that the eye adaptability task and the eye color adaptability task in this embodiment can be respectively summarized into two workflows, and are respectively compiled into other program codes and stored in the storage device 104, and the other program codes and the program codes corresponding to the display process 20 are executed by the processor 100 together. As to how the two workflows generate and adjust the dynamic backlight data, the analog gamma data and the image processing data for the display data, respectively, the following paragraphs and fig. 3 and 4 will detail the workflows thereof, respectively.
Referring to fig. 3, fig. 3 is a flowchart of a human eye light adaptability process 30 according to the present embodiment, and the human eye light adaptability process 30 includes the following steps.
Step 300: and starting.
Step 302: the processor 100 obtains a liquid crystal voltage transmittance curve of the display panel 102 according to the ambient light intensity value, a reflected light luminance value and the original gamma curve.
Step 304: the processor 100 generates a target gamma data according to the ambient light intensity value, the reflected light luminance value and the human eye light adaptability data.
Step 306: the processor 100 generates analog gamma data according to the target gamma data, the transmittance curve of the liquid crystal voltage, and a driving circuit impedance value of the display device 10.
Step 308: the processor 100 generates dynamic backlight data according to the analog gamma data, the ambient light intensity value, the reflected light luminance value, and a comparison threshold value.
Step 310: and (6) ending.
In step 302, the processor 100 obtains a liquid crystal voltage transmittance curve of the display panel 102 according to the ambient light intensity value, the reflected light luminance value and the original gamma curve. Preferably, the transmittance curve of the liquid crystal voltage in the present embodiment can be a transmittance curve V-T of a Normally White (NW) liquid crystal as shown in FIG. 5, wherein the horizontal axis represents the voltage value and the vertical axis represents the light source transmittance. Next, in step 304, the processor 100 generates target gamma data according to the ambient light intensity value, the reflected light luminance value and the eye adaptability data. Preferably, the human eye light adaptability data in the present embodiment can be a graph as shown in fig. 6, wherein the horizontal axis represents the brightness, and the vertical axis represents the sensitivity of the human eye brightness. Then, in step 306, the processor 100 generates the adjusted analog gamma data according to the target gamma data, the liquid crystal voltage transmittance curve and the driving circuit impedance value of the display device 10, as shown in fig. 7, which is a schematic diagram of comparing the original analog gamma data G _ O with the adjusted analog gamma data G _ N in the present embodiment, wherein the horizontal axis represents the gray level value for each pixel unit and the vertical axis represents the corresponding brightness value.
Accordingly, after the display device 10 is manufactured, the corresponding original analog gamma data is stored in the storage device 104, and then, in step 306, the processor 100 correspondingly obtains the adjusted analog gamma data according to the ambient light intensity value, the reflected light luminance value, the human eye light adaptability data, the liquid crystal voltage transmittance curve, the driving circuit impedance value, and the like, and the analog gamma data before or after the adjustment can be stored in the storage device 104, so as to facilitate the subsequent work of the processor 100. In another embodiment, the raw analog gamma data of the display apparatus 10 can also be directly used as the analog gamma data, i.e. the processor 100 does not perform the adjustment of the analog gamma data, but only uses the pre-stored raw analog gamma data, so as to save the processing performance and the working time of the processor 100, and is not intended to limit the scope of the present invention.
In step 308, the processor 100 generates dynamic backlight data according to the analog gamma data, the ambient light intensity value, the reflected light luminance value and the contrast threshold value. Preferably, the contrast threshold value in the present embodiment can be obtained from a human-induced experiment result, for example, the contrast threshold value is set to a value of 10-15, but of course, the contrast threshold value in the present embodiment can also be comprehensively referred to various indicative threshold values/parameters such as sharpness, saturation, image quality difference, etc. corresponding to the display device 10, or the size of the contrast threshold value can be adjusted according to the personal preference of the user, and is not used to limit the scope of the present invention. In this case, once the processor 100 receives the analog gamma data, the ambient light intensity value, the reflected light luminance value, the contrast threshold value, and the like, it generates the dynamic backlight data correspondingly, and at the same time, the processor 100 also temporarily stores the currently calculated analog gamma data and the dynamic backlight data as the optimization parameters of the current eye light adaptability work, and completes the first stage of adjustment work to prepare for entering the second stage of adjustment work of the eye color adaptability work.
Referring to fig. 4, fig. 4 is a flowchart of a human eye color adaptability process 40 according to the present embodiment, and the human eye color adaptability process 40 includes the following steps.
Step 400: and starting.
Step 402: the processor 100 generates a display pixel distribution data according to the ambient illumination data, the display device characteristic data, and the plurality of pixel display data.
Step 404: the processor 100 generates display quality indicator data according to the display pixel distribution and an eye vision model.
Step 406: the processor 100 checks whether the display condition satisfies the image threshold value according to the display quality indicator data and the image threshold value of the human eye image quality model.
Step 408: and (6) ending.
In step 402, the processor 100 generates display pixel distribution data according to the ambient illumination data, the display device characteristic data, and the plurality of pixel display data; next, in step 404, the processor 100 generates display quality indicator data according to the display pixel distribution and the human eye vision model; finally, in step 406, the processor 100 compares the display quality indicator data with the image threshold set by the human eye image quality model to check whether the display condition for adjusting the display data satisfies the image threshold required under different ambient light sources.
In this case, the human eye color adaptability work in this embodiment refers to the environmental illumination data, the display device characteristic data, the plurality of pixel display data, and other data, and simultaneously uses the human eye vision model to generate the display quality indicator data corresponding to the user work display device 10, in other words, the human eye color adaptability work in this embodiment can simulate the visual effect of the user viewing the display device 10; further, the processor 100 compares the display quality indicator data with a default image threshold value in the human eye image quality model to determine whether the display conditions (i.e., the adjusted dynamic backlight data, the analog gamma data, the image processing data, etc.) generated or adjusted by the adaptive adjustment work currently can perform an optimal adjustment on the display data, so as to adaptively play the adjusted display data on the display device 10.
Accordingly, when the display process 20 completes an adaptive adjustment operation and the current display condition obtained by the simulation calculation satisfies the image threshold, the processor 100 outputs the adjusted dynamic backlight data, the analog gamma data and the image processing data to the display panel 102 (or the working components/modules such as the driving chip, the image processing unit or the frequency control unit for driving the display panel 102) for use as a reference for adjusting the display data. However, when the display condition of the simulation calculation cannot satisfy the image threshold value, the visibility adjustment provided in this embodiment is iterated or looped back, that is, the human eye light adaptability work and the human eye color adaptability work (i.e., the visibility adjustment work) in the display process 20 are repeatedly performed, and the obtained ambient illumination data, the display device characteristic data, and the plurality of pixel display data are used as the basis for the iteration or looped back adjustment to re-obtain another set of dynamic backlight data, the analog gamma data, and the image processing data, and then the processor 100 evaluates whether the display condition of the simulation calculation can satisfy the image threshold value of the human eye image quality model, until the adjusted display condition obtained by the multiple iterations or looped back adjustment can satisfy the image threshold value, the visibility adjustment work of the display process 20 is correspondingly terminated, and the iterated or looped back adjusted display condition is correspondingly output to the display panel 102 (or used to drive the display surface 102) The driver chip, image processing unit, or frequency control unit, etc. of the board 102) to adjust and display the display data.
In another embodiment, in order to facilitate the adjustment of the display device 10 or to allow the display device 10 to be easily integrated into different electronic products, the visibility adjustment task of this embodiment may also omit iteration or recursive adjustment task and directly divide the visibility adjustment task into a plurality of adjustment stages. Accordingly, the visibility adjustment task can correspondingly set an initial adjustment value and a final adjustment value and form an increasing function, and in each adjustment stage, a user can selectively utilize a fine adjustment integer value to gradually adjust the favorite display mode of each person. In other words, in the present embodiment, a plurality of fine tuning integer values are defined between the initial tuning value and the final tuning value, and the number of one or more units of fine tuning is correspondingly increased from the initial tuning value in a plurality of tuning stages until the final tuning value is reached. Moreover, in order to facilitate the user to perform the fine adjustment work of the display data, the display device 10 may further be correspondingly designed with a user work interface, and a touch arrow key is disposed on the user work interface for the user to slide or move arbitrarily, so as to quickly and clearly display the performed fine adjustment work result, which also belongs to the scope of the present invention. The following table is a schematic table of the display device 10 according to the present embodiment for performing a one-stage adjustment operation.
For example, if the display device 10 is driven by the maximum backlight and the corresponding analog Gamma data is a white image, the maximum brightness value is 500 nits (nits), whereas a minimum brightness is 200 nits, and the display device 10 selects the Gamma 2.2 curve. In addition, the reflectivity of the display device 10 in the visible wavelength range is 1% specular reflection, and the image threshold set under the environment of strong light source is 10 (in different embodiments, the user arbitrarily selects different values to represent the minimum acceptable level for his eyes). In this case, in order to satisfy the limit of the image threshold value of 10, when the ambient light is less than 2000 lux, the luminance of the display device 10 needs to be maintained at 200 nits; when the ambient light brightness is between 2000-3000 lux, the brightness of the display device 10 is adjusted to 300 nit; when the ambient light brightness is 3000-4000 lux, the brightness of the display device 10 is adjusted to 400 nit; when the ambient light intensity is greater than 4000 lux, the brightness of the display device 10 is adjusted to 500 nits.
In addition, when the ambient light brightness is greater than 5000 lux, the above method for adjusting dynamic backlight data cannot satisfy the image threshold value set under the environment of strong light source as 10. Accordingly, the visibility adjustment operation further employs different image processing data, such as a schematic diagram of an image processing data graph shown in fig. 8, in which the horizontal axis represents a gray scale value for each pixel unit, and the vertical axis represents a corresponding brightness value, and a plurality of mapping functions are plotted on the image processing data graph, which can represent that the processor 100 can perform mapping processing by using image processing data of different mapping degrees when the brightness of different ambient light sources changes. For example, when the ambient light brightness is 5000 ~ 7500 lux, the processor 100 outputs the mapping function C1 to perform gray scale mapping; when the ambient light brightness is 7500-10000 lux, the processor 100 outputs a mapping function C2 to perform gray scale mapping; when the ambient light brightness is 10000-15000 lux, the processor 100 outputs the mapping function C3 to perform gray scale mapping. Accordingly, the processor adaptively adjusts the dynamic backlight data and the image processing data, so that the pre-outputted display data can be adjusted in stages to conform to different current ambient light sources.
In addition, in the present embodiment, the eye adaptive process 30 and the eye adaptive process 40 are compiled into program codes and stored in the storage device 104, and are executed by the processor 100 together with the program codes corresponding to the display process 20, but in another embodiment, the work processes of the eye adaptive process 30 and the eye adaptive process 40 can be respectively and independently an eye adaptive module and an eye adaptive module, and the corresponding program codes are pre-stored, and both of the two modules can be coupled and integrated with at least one or more components/modules of the processor 100 or a driving chip, an image processing unit, a frequency control unit, etc. for driving the display panel 102, so as to reduce the computation time or complexity of the display apparatus 10 and provide a multi-element and flexible circuit design of the display apparatus 10, also within the scope of the invention.
In short, in the display method for the display device 10 of the present embodiment, the actual feeling picture of human eyes is simulated and calculated by referring to the ambient illumination data, the display device characteristic data and the display data and using the human eye vision model, that is, the simulated human eye sensing data is generated to correspond to the plurality of pixel units of the display device 10, so as to estimate the image quality indicator of the display data viewed by the user. If the image quality indicator can satisfy the predetermined image threshold, the display device 10 directly uses the current dynamic backlight data, the analog gamma data and the image processing data to display the display data. If the image quality indicator cannot satisfy the image threshold, the display device 10 recalculates the new dynamic backlight data, the new analog gamma data and the new image quality indicator to be compared with the image threshold through the eye vision model until the display condition can satisfy the image threshold or the iteration number set by the user is reached. Of course, the display method for the display device 10 in this embodiment may also be independently presented by using a software, firmware, or hardware, etc. to work in combination with other electronic hardware products or display software, etc., which is not intended to limit the scope of the present invention.
It should be noted that the visibility adjustment provided by this embodiment may be used to adjust a contrast parameter, a saturation parameter, a human eye light adaptability parameter, and a human eye color adaptability parameter corresponding to display data to be displayed or played, so that the display data can be normally displayed in an outdoor environment with a strong light source, and the visibility adjustment provided by this embodiment may also be used to adjust the display data when a user moves arbitrarily and the ambient light source is greatly changed. In addition, those skilled in the art also add other optical image parameters or visual model parameters to the visual adjustment work to increase the environmental strain capability and dynamic adjustment mechanism of the visual display work, which all belong to the scope of the present invention.
In summary, embodiments of the present invention provide a display device and a display method for performing visibility adjustment work, so that adjusted display data includes optimized parameters for human eye light adaptability and parameters for human eye color adaptability. Therefore, when the display device works in the environment of strong light source, the display data can be adaptively adjusted to avoid the contrast interference of the strong light source, and meanwhile, when the user moves in an indoor environment or an outdoor environment, the display device can also dynamically perform the fine adjustment work of the display data, so that the display device can maintain the minimum power consumption, the endurance of the display device or an electronic product bearing the display device is maintained, and the application range and the product expandability of the display device are correspondingly improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A display method for adjusting display data of a display device under different ambient light sources, the display method comprising:
obtaining environmental illumination data, display equipment characteristic data and the display data of the surrounding environment of the display equipment; and
inputting the environment illumination data, the display equipment characteristic data and the display data into a human eye visual model, and performing visual adjustment to enable a display condition corresponding to the display data to meet an image threshold value;
wherein, the display condition comprises a dynamic backlight data, a simulation gamma data and an image processing data, the visibility adjusting work is to correspondingly adjust the dynamic backlight data, the simulation gamma data and the image processing data according to the human eye vision model, so that the adjusted display data meets the image threshold value;
wherein, an illumination measurement module is used for obtaining the environmental illumination data, a luminance measurement module is used for obtaining the display device characteristic data, the environmental illumination data comprises an environmental light intensity value, and the display device characteristic data comprises an original gamma curve;
the human eye vision model also comprises a human eye light adaptability work, a human eye color adaptability work, a human eye space clock adaptability work and/or a human eye object boundary detection characteristic work.
2. The display method as claimed in claim 1, wherein the image threshold comprises a contrast threshold, a saturation threshold, a sharpness threshold and/or an image difference threshold.
3. The display method of claim 1, wherein the visibility adjustment task further comprises:
inputting the ambient illumination data, the display device characteristic data and the display data into the human eye vision model to generate simulated human eye sensing data, wherein the display data comprises a plurality of pixel display data corresponding to a plurality of pixel units on a display panel of the display device, and the simulated human eye sensing data is a plurality of gray-scale values corresponding to the plurality of pixel display data;
judging whether the simulated human eye sensing data meets the image threshold value; and
when the simulated human eye sensing data meets the image threshold value, the dynamic backlight data, the analog gamma data and the image processing data are output to adjust the display data.
4. The display method of claim 3, wherein the visibility adjustment task further comprises:
when the simulated human eye sensing data can not meet the image threshold value, the visibility adjustment work is carried out in an iteration or recursion mode, the simulated human eye sensing data after the iteration or recursion adjustment meet the image threshold value, and the dynamic backlight data, the simulated gamma data and the image processing data after the iteration or recursion adjustment are output to adjust the display data.
5. The display method as claimed in claim 1, further comprising:
the visibility adjustment operation is divided into a plurality of adjustment stages, and the display data is adjusted progressively in each adjustment stage by using the adjusted display condition.
6. A display device for displaying a display data under different ambient light sources, the display device comprising:
a processor;
a display panel coupled to the processor and including a plurality of pixel units; and
a storage device coupled to the processor and storing a program code for performing a display method, the display method comprising:
obtaining environmental illumination data, display equipment characteristic data and the display data of the surrounding environment of the display equipment; and
inputting the environment illumination data, the display equipment characteristic data and the display data into a human eye visual model, and performing visual adjustment to enable a display condition corresponding to the display data to meet an image threshold value corresponding to a strong light source environment;
wherein, the display condition comprises a dynamic backlight data, a simulation gamma data and an image processing data, the visibility adjusting work is to correspondingly adjust the dynamic backlight data, the simulation gamma data and the image processing data according to the human eye vision model, so that the adjusted display data meets the image threshold value;
wherein, an illumination measurement module is used for obtaining the environmental illumination data, a luminance measurement module is used for obtaining the display device characteristic data, the environmental illumination data comprises an environmental light intensity value, and the display device characteristic data comprises an original gamma curve;
the human eye vision model also comprises a human eye light adaptability work, a human eye color adaptability work, a human eye space clock adaptability work and/or a human eye object boundary detection characteristic work.
7. The display device as claimed in claim 6, wherein the image threshold comprises a contrast threshold, a saturation threshold, a sharpness threshold and/or an image difference threshold.
8. The display apparatus of claim 6, wherein the visibility adjustment operation further comprises:
inputting the ambient illumination data, the display device characteristic data and the display data into the human eye vision model to generate simulated human eye sensing data, wherein the display data comprises a plurality of pixel display data corresponding to a plurality of pixel units on a display panel of the display device, and the simulated human eye sensing data is a plurality of gray-scale values corresponding to the plurality of pixel display data;
judging whether the simulated human eye sensing data meets the image threshold value; and
when the simulated human eye sensing data meets the image threshold value, the dynamic backlight data, the analog gamma data and the image processing data are output to adjust the display data.
9. The display apparatus of claim 8, wherein the visibility adjustment task further comprises:
when the simulated human eye sensing data can not meet the image threshold value, the visibility adjustment work is carried out in an iteration or recursion mode, the simulated human eye sensing data after the iteration or recursion adjustment meet the image threshold value, and the dynamic backlight data, the simulated gamma data and the image processing data after the iteration or recursion adjustment are output to adjust the display data.
10. The display apparatus of claim 6, wherein the display method further comprises:
the visibility adjustment operation is divided into a plurality of adjustment stages, and the display data is adjusted progressively in each adjustment stage by using the adjusted display condition.
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| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| CN101620819A (en) * | 2009-06-25 | 2010-01-06 | 北京中星微电子有限公司 | Dynamic regulation method and dynamic regulation device for displaying image back light brightness, and moving display device |
| CN202268937U (en) * | 2011-07-20 | 2012-06-06 | 中兴通讯股份有限公司 | Mobile terminal with automatic adjustment display effect |
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| KR100739801B1 (en) * | 2006-03-14 | 2007-07-13 | 삼성전자주식회사 | Apparatus using ambient light as back-light and method for correcting color therein |
| CN101105916A (en) * | 2007-08-10 | 2008-01-16 | 东莞黄江达裕科技电子厂 | GAMMA curve regulation method and device |
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| CN1774665A (en) * | 2003-12-08 | 2006-05-17 | 索尼株式会社 | Liquid crystal display and backlight adjusting method |
| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| CN101620819A (en) * | 2009-06-25 | 2010-01-06 | 北京中星微电子有限公司 | Dynamic regulation method and dynamic regulation device for displaying image back light brightness, and moving display device |
| CN202268937U (en) * | 2011-07-20 | 2012-06-06 | 中兴通讯股份有限公司 | Mobile terminal with automatic adjustment display effect |
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