CN118506719A

CN118506719A - Image display method, driving method and display device

Info

Publication number: CN118506719A
Application number: CN202410705798.3A
Authority: CN
Inventors: 赖炳旭; 陈家贤; 黄胤魁
Original assignee: Shenzhen Rongchuang Jiaye Technology Co ltd
Current assignee: Shenzhen Rongchuang Jiaye Technology Co ltd
Priority date: 2024-06-03
Filing date: 2024-06-03
Publication date: 2024-08-16

Abstract

The present invention relates to the field of display technologies, and in particular, to an image display method, a driving method, and a display device. The image display method comprises the steps of obtaining m gray bit images of an image to be displayed; the bit duration of the ith gray level bit image is denoted as t _i; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray level bit image be v _i, then v ₁<v₂<…<v_i<…<v_m; dividing an image to be displayed of each frame into n subframes; at least 1 gray level bit image is configured for each subframe; and sequentially driving the gray bit images to be overlapped and displayed according to the driving voltage of the gray bit images configured in each subframe so as to form an image. With this arrangement, the image display effect can be improved.

Description

Image display method, driving method and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to an image display method, a driving method, and a display device.

Background

With the rapid development of display technology, display devices such as LED displays and AMOLED displays are widely used in various electronic devices due to their low power consumption, low driving voltage, and the like. Currently, a digital driving method or an analog driving method may be used to drive the AMOLED display device to display an image.

When the AMOLED display is driven by adopting an analog method, the drive current is different due to the tiny current change generated by different pixels among the panels, so that obvious mura (uneven display) phenomenon is easy to occur, and the AMOLED can be well restrained by driving by adopting a digital driving method. However, when the conventional digital driving method has high requirements on the picture update rate, there are problems of poor picture flicker, poor gray scale brightness display, mutual interference between adjacent pixels, and the like, which cause poor image display.

Disclosure of Invention

In order to solve the defect of poor image display in the prior art, the invention provides an image display method, a driving method and a display device.

In a first aspect, the present invention provides an image display method, including:

Obtaining m gray bit images of an image to be displayed, wherein m is a positive integer greater than or equal to 2; each gray level bit image is configured with a bit duration and a driving voltage; all gray level bit images are arranged from small to large according to gray level values, and the bit duration of the ith gray level bit image is expressed as t _i, i is E [1, m ]; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray-scale bit image be v _i, then v ₁<v₂<…<v_i<…<v_m;

Dividing each frame of image to be displayed into n subframes, wherein n is a positive integer which is more than or equal to 1 and less than or equal to m; each subframe is configured with at least 1 gray level bit image;

And sequentially driving the gray bit images to be overlapped and displayed according to the driving voltage set by each gray bit image according to the sequence of the gray bit images configured in each subframe so as to form an image.

In an embodiment, the driving voltage v _m is a voltage value when the mth gray-scale bit image is fully bright.

In one embodiment, the ratio of the driving voltage v _i of the ith gray-scale bit image to the driving voltage v _i+1 of the (i+1) th gray-scale bit image is betweenBetween them.

In one embodiment, the number of gray-scale bit images allocated per subframe is the same.

In one embodiment, m is 8 and n is 4.

In one embodiment, the gray-scale bit image is displayed by LED light emission; the LED lamp which at least partially controls the gray-scale bit image display is connected with a variable resistor in parallel, and the voltage of the LED lamp is changed by adjusting the resistance value of the variable resistor, so that the LED lamp is controlled to display the gray-scale bit image according to the preset driving voltage.

In a second aspect, the present invention also provides a driving method, applied to a display device, including:

receiving an image to be displayed;

Generating m gray bit images of an image to be displayed, wherein m is a positive integer greater than or equal to 2; each gray level bit image is configured with a bit duration and a driving voltage; all gray level bit images are arranged from small to large according to gray level values, and the bit duration of the ith gray level bit image is expressed as t _i, i is E [1, m ]; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray-scale bit image be v _i, then v ₁<v₂<…<v_i<…<v_m;

In an embodiment, x×y pixels on the display device are used as a unit to form a subframe unit, and n subframes are driven according to the sequence of the configured gray bit images, where x and y are all an even number greater than or equal to 2.

In a third aspect, the present invention also provides a display device employing the image display method according to any one of the embodiments of the first aspect or employing the driving method according to any one of the embodiments of the second aspect.

Based on the above, compared with the prior art, the image display method provided by the invention can avoid the problems of uncomfortable flicker and poor gray scale brightness display caused by fast picture update rate by adjusting the time sequence integration change of gray scale bit image display time and driving voltage, and improve the display effect of the image.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

For a clearer description of embodiments of the invention or of the solutions of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art; the positional relationships described in the drawings in the following description are based on the orientation of the elements shown in the drawings unless otherwise specified.

FIG. 1 is a schematic diagram of 8 gray-scale bit images superimposed to form a gray-scale image to be displayed;

FIG. 2 is a schematic diagram of 8 gray-scale bit images in the prior art sequentially;

FIG. 3 is a flowchart illustrating steps of an image display method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram showing the relationship between the bit duration and the driving voltage of each gray level bit image according to one embodiment of the present invention;

FIG. 5 is a schematic diagram of a circuit for controlling parallel connection of an LED lamp and a variable resistor for gray-scale bit image display according to an embodiment of the present invention;

FIG. 6 is a schematic diagram showing a gray scale bit image configuration in each sub-frame according to an embodiment of the present invention;

FIG. 7 is a schematic diagram showing a display sequence of gray scale bit images in a subframe unit according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating steps of a driving method according to an embodiment of the invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention; the technical features designed in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that all terms used in the present invention (including technical terms and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs and are not to be construed as limiting the present invention; it will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Fig. 1 and 2 show that, in fig. 1, 8 gray-scale bit images are displayed in a superimposed manner to form a gray-scale image to be displayed, fig. 2 shows that 8 gray-scale bit images in the prior art are sequentially displayed according to a gray-scale value sequence, and in fig. 1, the 8 gray-scale bit images are respectively represented as a first gray-scale bit image b0, a second gray-scale bit image b1, a third gray-scale bit image b2, a fourth gray-scale bit image b3, a fifth gray-scale bit image b4, a sixth gray-scale bit image b5, a seventh gray-scale bit image b6, and an eighth gray-scale bit image b7 according to a gray-scale value sequence. Specifically, a bit-plane image is a binary image, and each pixel in the image has only one bit and can be represented as 0 or 1, wherein 0is represented as dark, and 1 is represented as light. Thus, a bit-plane image can be displayed by superimposing a plurality of gray-scale bit images represented by 0 or 1 to form a complete gray-scale image to be displayed. In the conventional digital driving method, numbers on the multiple gray bit images in fig. 1 are sequentially superimposed and displayed according to the time duration and the fixed driving voltage corresponding to fig. 2, so as to form a complete image. The above-mentioned existing digital driving method can generate mutual interference due to different data signals between two adjacent frames of pixels, and can cause image flicker discomfort, thereby causing the problem of poor display effect. Especially, when the screen update rate is required to be high, there is a problem that gray scale luminance display is not good.

In order to solve at least one of the above problems, the present invention provides an image display method, a driving method and a display device, which can improve the problems of flicker discomfort and interference between adjacent pixels by changing the time sequence integration of gray-scale bit image display time and driving voltage, and especially can improve the problem of poor gray-scale brightness display when the requirement of the picture update rate is high. The following detailed description is made with reference to specific embodiments and accompanying drawings.

Example 1

Referring to fig. 3, an embodiment of the present invention provides an image display method, which includes the following steps:

Step S10, obtaining m gray-scale bit images of an image to be displayed, wherein m is a positive integer greater than or equal to 2; each gray level bit image is configured with a bit duration and a driving voltage; all gray level bit images are arranged from small to large according to gray level values, and the bit duration of the ith gray level bit image is expressed as t _i, i is E [1, m ]; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray-scale bit image be v _i, v ₁<v₂<…<v_i<…<v_m.

Specifically, the number of suitable gray-scale bit images can be selected according to the requirement of the functional processing module in the actual display, for example, 6 gray-scale bit images formed by 6bit driving display, 8 gray-scale bit images formed by 8bit driving display, or 10 gray-scale bit images formed by 10bit driving display can be adopted, which is not limited herein. Referring to fig. 4, the image to be displayed in the present embodiment is preferably an 8-bit gray scale image composed of 8 bits.

On the basis, bit time lengths of the gray level bit images are set to be equal, so that the time extension of each frame of image after accumulation caused by inconsistent display time of the gray level bit images in each subframe is avoided, and the gray level display effect is influenced. That is, the bit duration sum of all gray level bit images is set as T ₀, The specific value of T ₀ is set according to the actual display duration of each frame of image, which is not limited herein. For example, fig. 4 shows that the bit durations corresponding to the 8 gray-scale bit images are equal.

Further, the driving voltage of each gray-scale bit image is gradually increased according to the gray-scale value sequence of the gray-scale bit image, i.e. v ₁<v₂<…<v_i<…<v_m is set as v _i for the driving voltage of the ith gray-scale bit image; the specific driving voltage value is set according to the actual requirement, and is not limited herein. For example, fig. 4 shows that the 8 gray-scale bit images are sorted according to gray-scale values of the gray-scale bit images, and the corresponding driving voltages are gradually increased.

In a preferred embodiment, the driving voltage v _m is the voltage value when the mth gray-scale bit image is fully bright; that is, all gray bit images are arranged from small to large according to gray values, the driving voltage v _m of the last gray bit image should be the voltage value when the image is fully bright, and the driving voltages of other gray bit images are smaller than the voltage value when the image is fully bright.

Preferably, the ratio of the driving voltage v _i of the ith gray-scale bit image to the driving voltage v _i+1 of the (i+1) th gray-scale bit image is betweenBetween them. That is, all the gray-scale bit images are arranged from small to large according to the gray-scale values, and the driving voltage of the former gray-scale bit image is the driving voltage of the latter gray-scale bit imageMultiple times of the driving voltage can be used for improving the picture display effect and avoiding the influence on the display of gray scale brightness caused by too high or too low driving voltage.

More preferably, the driving voltages of the plurality of gray scale bit images may be equal to an equal ratio array with a first order of 1 and a common ratio of 2, for example, the driving voltages of the 8 gray scale bit images may be equal to a ratio of 1:2:4:8:16:32:64:128. Of course, those skilled in the art can design other proportional relationships according to actual requirements.

In other alternative embodiments, as shown in fig. 5, the gray-scale bit image is displayed by light emission of an LED lamp; the LED lamp which at least partially controls the gray-scale bit image display is connected with a variable resistor in parallel, and the voltage of the LED lamp is changed by adjusting the resistance value of the variable resistor, so that the LED lamp is controlled to display the gray-scale bit image according to the preset driving voltage. That is, the driving voltage is changed by connecting a variable resistor in parallel to the LED lamp so that the driving voltage in each sub-frame varies with the gray-scale bit image variation.

Of course, according to the inventive concept, the person skilled in the art can also adjust the driving voltage by changing the input voltage (e.g. adjusting the PWM signal) in other reasonable ways, such as a constant resistance.

Meanwhile, referring to fig. 3, in step S10, the method further includes: dividing each frame of image to be displayed into n subframes, wherein n is a positive integer which is more than or equal to 1 and less than or equal to m; each subframe is configured with at least 1 gray-scale bit image.

In the implementation, the number of divided subframes is determined according to the number of gray bit images, namely, n is ensured to be less than or equal to m, and each subframe is configured with at least 1 gray bit image. For example, m is 8, and n may be in the range of 1 to 8, which is not limited herein. In order to further secure the image display quality, n < m is preferable, for example, m is taken as 8, and n is 4.

In addition, each subframe is configured with a light emitting duration, and the light emitting duration of the jth subframe is denoted as T _j; wherein,So that each gray-scale bit image can be displayed scattered in the respective sub-frame. The light emitting duration of each subframe in the same period may be the same or different. That is, the light emitting duration of the subframe may be as small as equal toOnly one gray level bit image is put in, or a large gray level bit image can be taken to put in a plurality of gray level bit images, and the gray level bit images are specifically set according to actual requirements. In this embodiment, the light emitting duration of the subframes is preferably equal, that is, the number of gray bit images configured by each subframe is the same, so that the light emitting duration of each subframe is close, and thus the image display effect is better.

Specifically, T _j may be taken to be closest toThe multiple value is used as the light emitting duration of the subframes, the light emitting durations of the subframes can be identical or different, specific parameters can be used for fine adjustment of the light emitting duration according to the required specification of the actual whole picture, or the bit duration is fine adjusted by adopting gamma2.2, and the method is not limited herein. For example, referring to fig. 6, in the standard 8 gray-scale bit images, if n is 4, 2 gray-scale bit images are allocated for each subframe, and the light emitting duration of each subframe isBy the limitation, the luminous time length of each subframe is the same, and the display of the gray bit image in each subframe occupies the luminous time length of the whole subframe, so that the problem of image flickering discomfort is avoided.

After the number and the light-emitting time length of the gray bit images placed in each subframe are determined, m gray bit images are placed in each subframe according to requirements. How to combine each gray-scale bit image into a specific subframe can be designed according to the requirement, and is not limited herein.

Step S20, according to the order of the gray-scale bit images configured in the subframes, sequentially driving the gray-scale bit images to be superimposed and displayed according to the driving voltages set by the gray-scale bit images to form an image. The common driver and driving circuit may be specifically used to realize the superposition display, which will not be described in detail herein.

According to the image display method, different gray-scale bit image sequences can be output by adjacent subframes through changing the duration of the image bits, the driving voltage and the integration of the subframe time sequence, so that the problems of mutual interference and picture flickering discomfort between adjacent pixels are effectively eliminated, the image display quality is improved, and the display effect is optimized.

Particularly, when the frame update rate is required to be fast, if the frame update rate is fast according to the fixed driving voltage and the manner of displaying sequential gray-scale bit images from short to long in sequence shown in fig. 2 in the prior art, the gray-scale brightness of a part of gray-scale bit images is not good due to the fast frame update rate and the fast switching speed, so that the brightness of the gray-scale bit images cannot be accurately satisfied. Therefore, the embodiment of the invention adjusts the display time length and the driving voltage of each gray-scale image, so that when the picture updating rate is high, the bit time length of each gray-scale bit image is consistent, and the gray-scale bit image with shorter bit time length is prevented from being displayed when the gray-scale bit image does not reach the preset driving voltage in the prior mode as shown in fig. 2; that is, the phenomenon that gray scale brightness of each gray scale bit image is too low due to the fact that the gray scale bit image with shorter bit duration does not reach a preset driving voltage is avoided, and the gray scale brightness of each gray scale bit image cannot be accurately displayed; in the embodiment, the bit duration is the same, and the driving voltage is changed along with the gray scale bit images, so that each gray scale bit image has enough bit duration to reach the required driving voltage, thereby effectively improving the gray scale brightness display effect.

In order to better explain the image display method provided by the above embodiment of the present invention, the following will describe in detail an example where m is 8 and n is 4.

Specifically, referring to fig. 6 and 7, the gray scale bit images of 8 are dispersed in 4 subframes as follows: the 8 th gray-scale bit image b7 and the 1 st gray-scale bit image b0 are in one of the subframes; the 7 th gray-scale bit image b6 and the 2 nd gray-scale bit image b2 are in one of the subframes; the 6 th gray-scale bit image b5 and the 3 rd gray-scale bit image b2 are in one of the subframes; the 5th gray-scale bit image b4 and the 4 th gray-scale bit image b3 are in one of the subframes. Through this setting can effectively avoid the problem that adjacent pixel disturbed for the image display effect is better. And forming a complete image after overlapping the 4 subframes.

Further, as shown in fig. 7, 4*4 pixels on the display device are used as a unit to form a subframe unit, and driving is performed according to a subframe sequence, wherein the display of subframes in each pixel does not repeatedly occur in each cycle time, so as to obtain n frame diagrams formed by overlapping n subframes. Fig. 7 shows a display sequence of each gray-scale bit image in 4*4 pixels of the same subframe unit. For example, in the first pixel of the first row, the first frame image shows b6 and b1 of the 2 nd subframe, the second frame image shows b5 and b4 of the 3 rd subframe, the third frame image shows b7 and b0 of the 1 st subframe, and the fourth frame image shows b4 and b3 of the 4 th subframe; in the second pixel of the first row, the first frame image shows b5 and b2 of the 3 rd subframe, the second frame image shows b6 and b1 of the 2 nd subframe, the third frame image shows b4 and b3 of the 4 th subframe, and the fourth frame image shows b7 and b0 … … of the 1 st subframe; and so on, the superposition display of four frame images formed by 8 gray-scale bit images in 16 pixels can be completed.

It should be noted that, the present embodiment is not limited to the gray-scale bit image distribution condition of the first sub-frame to the sixth sub-frame and the display sequence of the first frame image to the sixth frame image shown in fig. 6 and 7, and those skilled in the art can change the display sequence of the frame images and the distribution positions of the gray-scale bit images according to the actual requirements, which fall within the protection scope of the present invention.

Example two

Referring to fig. 8, an embodiment of the present invention provides a driving method applied to a display device, including the following steps:

Step S100, receiving an image to be displayed;

Step S200, generating m gray-scale bit images from an image to be displayed, wherein m is a positive integer greater than or equal to 2; each gray level bit image is configured with a bit duration and a driving voltage; all gray level bit images are arranged from small to large according to gray level values, and the bit duration of the ith gray level bit image is expressed as t _i, i is E [1, m ]; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray-scale bit image be v _i, then v ₁<v₂<…<_i<…<_m; dividing each frame of image to be displayed into n subframes, wherein n is a positive integer which is more than or equal to 1 and less than or equal to m; each subframe is configured with at least 1 gray level bit image;

Step S300, according to the order of the gray-scale bit images configured in the subframes, sequentially driving the gray-scale bit images to be superimposed and displayed according to the driving voltages set by the gray-scale bit images to form an image.

Preferably, the bit duration allocated to each gray level bit image is corrected by a gamma correction coefficient, such as gamma2.2.

Further, x×y pixels on the display device are used as a unit to form a subframe unit, and n subframes are driven according to the sequence of the configured gray level bit images, wherein x and y are both even numbers greater than or equal to 2, and by means of reducing the number of the subframe unit pixels, the problem that the vertical synchronization time is exceeded due to overlong overlapping time of each unit is effectively avoided, meanwhile, the number of the image processing pixels can be better processed, and the picture display quality is further ensured.

For example, as shown in fig. 7, in 4 subframes, a subframe unit is formed by 4*4 pixels as a unit, and driving is performed in the order of 4 subframes, wherein the display of the subframes in each pixel does not occur repeatedly in a cycle time.

In addition, the specific roles, functions and implementation manners of each step can refer to the content of the first embodiment, and are not repeated herein.

Example III

An embodiment of the present invention also provides a driving apparatus, including:

the receiving module is used for receiving the image to be displayed;

The image processing module is used for generating m gray-scale bit images from the image to be displayed, wherein m is a positive integer greater than or equal to 2; each gray level bit image is configured with a bit duration and a driving voltage; all gray level bit images are arranged from small to large according to gray level values, and the bit duration of the ith gray level bit image is expressed as t _i, i is E [1, m ]; let the sum of bit time lengths of all gray bit images be T ₀ Let the driving voltage of the ith gray-scale bit image be v _i, then v ₁<v2<…<v_i<…<v_m; dividing each frame of image to be displayed into n subframes, wherein n is a positive integer which is more than or equal to 1 and less than or equal to m; each subframe is configured with at least 1 gray level bit image;

And the control module sequentially drives the gray bit images to be overlapped and displayed according to the driving voltage set by each gray bit image according to the sequence of the gray bit images configured in each subframe so as to form an image.

The specific roles, functions and implementation manners of each module can refer to the content of the first embodiment, and are not repeated here.

Example IV

An embodiment of the present invention further provides a display device, which uses the image display method according to any one of the above embodiments or uses the driving method according to any one of the above embodiments, so as to effectively improve the display performance of an image.

The display device includes, but is not limited to, an organic light-Emitting Diode (OLED) display panel, an Active-matrixorganic LIGHT EMITTING Diode (AMOLED) display panel, a mini-LED display panel, a micro-LED display panel, and the like.

Example five

An embodiment of the present invention further provides a computer storage medium storing computer executable instructions that when executed by one or more processors implement the image display method according to the first embodiment or implement the driving method according to the second embodiment.

In specific implementation, the computer readable storage medium is a magnetic disk, an optical disk, a Read-On lyMemory, a Read-only Memory (ROM), a random-access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a hard disk (HARD DISK DRIVE, abbreviated as HDD) or a Solid-state hard disk (Solid-state disk STATE DRIVE, SSD); the computer readable storage medium may also include a combination of the above types of memory.

Example six

An embodiment of the present invention further provides a display device, including a processor, a memory, and computer-executable instructions stored on the memory, where the computer-executable instructions when executed by the processor implement the image display method according to the first embodiment or implement the driving method according to the second embodiment.

In particular, the number of processors may be one or more, and the processors may be central processing units (Central Processing Unit, CPU). The Processor may also be other general purpose processors, digital Signal Processors (DSP), application SPECIFIC INTEGRATED Circuits (ASIC), field-Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may be communicatively connected to the processors via a bus or other means, where the memory stores instructions executable by at least one processor, and the instructions are executed by the at least one processor to cause the processor to perform the image display method as described in the first embodiment or implement the driving method as described in the second embodiment.

In summary, compared with the prior art, the image display method, the driving method and the display device provided by the invention can avoid the problems of interference between adjacent pixels and uncomfortable flicker of a picture by adjusting the bit duration, the driving voltage, the display sequence and the sequential integration change of the sub-frames of the gray bit image, and simultaneously can also avoid the problem of poor gray brightness display when the picture update rate is high, thereby effectively improving the display effect of the image and optimizing the display performance.

In addition, it should be understood by those skilled in the art that although there are many problems in the prior art, each embodiment or technical solution of the present invention may be modified in only one or several respects, without having to solve all technical problems listed in the prior art or the background art at the same time. Those skilled in the art will understand that nothing in one claim should be taken as a limitation on that claim.

Although terms such as gray scale bit image, bit duration, subframe, light emitting duration, subframe unit, etc. are more used herein, the possibility of using other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention; the terms first, second and the like in the description and in the claims of embodiments of the invention and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. An image display method, comprising:

2. The image display method according to claim 1, wherein: the driving voltage v _m is the voltage value when the mth gray-scale bit image is fully bright.

3. The image display method according to claim 1, wherein: the ratio of the driving voltage v _i of the ith gray-scale bit image to the driving voltage v _i+1 of the (i+1) th gray-scale bit image is betweenBetween them.

4. The image display method according to claim 1, wherein: the number of gray bit images allocated per subframe is the same.

5. The image display method according to claim 1, wherein: each subframe is configured with a luminous duration, and the luminous duration of the jth subframe is represented as T _j; wherein,

6. The image display method according to claim 1, wherein: m is 8 and n is 4.

7. The image display method according to claim 1, wherein: the gray bit image is displayed through light emitting of an LED lamp; the LED lamp which at least partially controls the gray-scale bit image display is connected with a variable resistor in parallel, and the voltage of the LED lamp is changed by adjusting the resistance value of the variable resistor, so that the LED lamp is controlled to display the gray-scale bit image according to the preset driving voltage.

8. A driving method applied to a display device, comprising:

receiving an image to be displayed;

9. The driving method according to claim 8, characterized in that: and driving the n subframes according to the sequence of the configured gray level bit images by taking x y pixels on the display device as a unit to form a subframe unit, wherein x and y are both even numbers greater than or equal to 2.

10. A display device, characterized in that: an image display method according to any one of claims 1 to 7, or a driving method according to claim 8 or 9.