CN100580757C - Control method of display device - Google Patents

Abstract

The invention relates to a control method of a display device, which generates at least one first color system light source and one second color system light source by a light source module and displays at least one image frame on a display surface. The image frame has a first sub-image frame and a second sub-image frame, and the control method of the display device comprises the following steps: displaying a first sub-image frame on a display surface at a first time; and displaying the second sub-image frame on the display surface at a first distance from the first sub-image frame at a second time. The invention can avoid the color separation phenomenon caused by tracking the dynamic image by human eyes.

Description

Control method of display device

technical field

The invention relates to a control method of a display device, in particular to a control method for playing an image frame of a display device.

Background technique

Currently, the main display device technologies can be roughly classified into two types: self-luminous display devices and non-self-luminous display devices. Self-luminous display devices are, for example, cathode ray tube displays (CRT) and plasma displays (PDP), while non-self-luminous display devices are, for example, liquid crystal displays (LCD) and digital light projectors (DLP).

In the non-self-luminous display device, at least one light source needs to be generated by a light source module, and a light source cooperates with a pixel array to display colors on a display surface. The general method of displaying colors is to use a color filter to distinguish the light sources into red, green, and blue and overlap them on the display surface, or to project the red, green, and blue light sources at the same time by means of projection. to the display surface to display the color on the display surface.

The above-mentioned display method only needs to cooperate with common liquid crystals to achieve the purpose of displaying colors. Generally speaking, the response speed of such liquid crystals is about 10 ms to 15 ms. Recently, due to the industry's active investment in the improvement of liquid crystal response speed technology, an optically compensated bend alignment (Optically Compensated Bend, OCB) liquid crystal technology has been developed, and its response speed can be increased to less than 10ms.

Based on the improvement of the response speed of liquid crystals, the industry has also used the characteristics of OCB liquid crystals to develop a method of using circular light sources for color cycle display, and using the phenomenon of persistence of vision of the human eye to display colors on the display surface. Generally speaking, the image is displayed on the display surface by the red, green, and blue primary color light sources and the grayscale adjustment of the liquid crystal. The so-called color cycle display technology divides an image frame data into image frame data corresponding to red light source, green light source, and blue light source, and uses the phenomenon of persistence of vision of the human eye to display them sequentially on the display surface.

If the above-mentioned color cycle display technology uses light-emitting diodes as the backlight source, the use of color filters in the display device can be omitted, which can effectively reduce the cost. However, when using the color cycle display technology, when an object on the screen moves on the display surface of the display device, since the human eye will track the image in anticipation of the screen movement, it is often seen that the edge of the moving object produces color splitting (Colorsplit), that is , red, green, and blue colors will be observed at the edge of moving objects, which will cause practical limitations of color cycle technology.

Based on the above, since users have higher and higher requirements for images, how to provide a display device that can effectively suppress the color separation phenomenon using the color cycle display technology is one of the current important issues.

In view of the defects of the above-mentioned existing display devices, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a new display device , can improve the general existing display device to make it more practical. Through continuous research, design, and after repeated trials and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects of the existing display device and provide a new display device. The technical problem to be solved is to avoid color separation and thus be more suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a control method of a non-self-luminous display device proposed by the present invention, a light source module generates at least a first color light source, a second color light source and a third color light source, and displays them on a display surface Displaying at least one image frame, and the image frame has a first sub-image frame, a second sub-image frame and a third sub-image frame, which includes the following steps: at a first time, at the displaying the first sub-image frame on the display surface; and at a second time, displaying the second sub-image frame at a first distance from the first sub-image frame on the display surface; and at a third time time, displaying the third sub-image frame on the display surface at a second distance from the second sub-image frame.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the control method of the aforementioned non-self-luminous display device, wherein the display device writes a frame data of the first sub-image frame into a pixel array of the display surface within the first time period.

In the control method of the aforementioned non-self-luminous display device, the light source module turns on the light source of the first color system within the first time.

In the control method of the aforementioned non-self-luminous display device, wherein the non-self-luminous display device writes a frame data of the second sub-image frame into a pixel array of the display surface within a second time.

In the control method of the aforementioned non-self-luminous display device, wherein the light source module turns on the light source of the second color system within the second time.

In the control method of the aforementioned non-self-luminous display device, the first color light source and the second color light source are selected from at least one of a red light source, a green light source, a blue light source, or a white light source.

In the control method of the aforementioned non-self-illuminating display device, the light source of the first color system and the light source of the second color system include at least one light emitting diode.

In the control method of the aforementioned non-self-luminous display device, wherein the non-self-luminous display device writes a frame data of the third sub-image frame into a pixel array of the display surface within a third time period.

In the control method of the aforementioned non-self-luminous display device, the light source module turns on the light source of the third color system within the third time period.

In the control method of the aforementioned non-self-luminous display device, the light source of the third color system is selected from at least one of a red light source, a green light source, a blue light source or a white light source.

In the aforementioned method for controlling a non-self-illuminating display device, the light source of the third color system includes at least one light emitting diode.

In the aforementioned method for controlling a non-self-luminous display device, the first distance is equal to the second distance.

In the control method of the aforementioned non-self-luminous display device, wherein the first sub-image data, the second sub-image data and the third sub-image data are respectively written into a pixel array of the display device at a frequency of 180 Hz.

The aforementioned method for controlling a non-self-illuminating display device is applied to a liquid crystal display device or a digital light source projection device.

With the above technical solution, the control method of the display device of the present invention has at least the following advantages:

A control method of a display device according to the present invention, which divides an image frame into a first sub-image frame and a second sub-image frame, and displays them on the display surface at intervals of a time and a distance, utilizing the phenomenon of persistence of vision of the human eye And watch the image frame. In this way, the phenomenon of color separation caused by human eyes tracking the dynamic image can be avoided.

To sum up, the novel control method of the display device of the present invention can avoid the phenomenon of color separation. The present invention has the above-mentioned many advantages and practical value, and it has great improvement no matter in the method or function, has the significant progress in technology, and has produced the effect of being easy to use and practical, and has more advantages than the existing display device. The improved efficacy is more suitable for practical use and has wide application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a moving distance of a moving object in a first image frame and a second image frame in a control method of a display device according to a preferred embodiment of the present invention.

FIG. 2 is a flowchart of a control method of a display device according to a preferred embodiment of the present invention.

3A to 3D are schematic diagrams of the first sub-image frame, the second sub-image frame and the third sub-image frame sequentially displayed on the display surface according to FIG. 2 .

11: Display surface;

D: distance;

D1: the first distance;

D2: the second distance;

D3: the third distance;

F1: first image frame;

F11: The first sub-image frame;

F12: Second sub image frame;

F13: The third sub-image frame;

F2: Second image frame;

F21: The first sub-image frame of the second image frame;

O1: moving objects;

S01-S03: The steps of the control method of the display device.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation methods, methods, steps, and features of the control method of the display device proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. And its effect, detailed description is as follows.

Firstly, it should be explained that a control method of a display device according to a preferred embodiment of the present invention is used in conjunction with a light source module and a display surface 11 . In this embodiment, the light source module generates a first color light source, a second color light source and a third color light source (not shown) as an example for illustration. The display surface 11 sequentially displays a first image frame F1 and a second image frame F2, wherein the first image frame F1 and the second image frame F2 have a moving object O1 that moves on the display surface 11 Distance D (as shown in Figure 1).

In this embodiment, the display device is a non-self-luminous display device, which may be a liquid crystal display device or a digital light source projection device. In addition, the first color light source, the second color light source and the third color light source can be a red light source, a green light source and a blue light source respectively, and each color light source includes at least one light emitting diode. The first color light source, the second color light source or the third color light source can also be a white light source, which is then filtered by a color filter to obtain the desired color light source. Moreover, the first image frame F1 and the second image frame F2 are displayed on the display surface 11 at a frequency of 60 Hz, in other words, each frame time is about 16.67 ms (milliseconds), and the display device The frame data of the image frame is written into a pixel array of the display device, and the image frame is displayed on the display surface 11 in conjunction with the adjustment of the backlight and the gray scale of the liquid crystal.

Referring to FIG. 2 , a method for controlling a display device according to a preferred embodiment of the present invention includes steps S01 to S03 . Wherein the first image frame F1 is divided into a first sub-image frame F11, a second sub-image frame F12 and a third sub-image frame F13 (as shown in FIGS. 3A to 3C ), which are respectively corresponding to The sub-image frame data of the red light source, the sub-image frame data corresponding to the green light source, and the sub-image frame data corresponding to the blue light source. In other words, each color light source will correspond to a sub-image frame. When there are more lines, the image frame will be divided into more sub-image frames. In addition, when the moving object O1 continues to move in the next image frame of the second image frame F2, the second image frame F2 is also divided into a sub-image frame corresponding to the red light source and a sub-image corresponding to the green light source. In the frame and the sub-image frame corresponding to the blue light source, in this embodiment, only the first sub-image frame F21 of the second image frame F2 is displayed (as shown in FIG. 3D ).

Referring to FIG. 3A , step S01 displays the first sub-image frame F11 of the first image frame F1 on the display surface 11 at a first time. In this embodiment, the display device writes the sub-image frame data of the first sub-image frame F11 of the first image frame F1 into the pixel array of the display device within the first time, and turns on the first color light source (red light source) to display the first sub-image frame F11 of the first image frame F1 on the display surface 11 .

Referring to FIG. 3B , step S02 displays the second sub-image frame F12 of the first sub-image frame F1 on the display surface 11 at a first distance D1 from the first sub-image frame F11 at a second time. In this embodiment, the display device writes the sub-image frame data of the second sub-image frame F12 of the first image frame F1 into the pixel array of the display device within a second time, and turns on the second color light source (green light source) to display the second sub-image frame F12 of the first image frame F1 on the display surface 11 .

Referring to FIG. 3C , step S03 displays the third sub-image frame F13 of the first image frame F1 on the display surface 11 at a second distance D2 from the second sub-image frame F12 at a third time. In this embodiment, the display device writes the sub-image frame data of the first sub-image frame F13 of the first image frame F1 into the pixel array of the display device within the third time, and turns on the third color light source (blue light source), to display the third sub-image frame F13 of the first image frame F1 on the display surface 11 .

Referring to FIG. 3D , next, the first sub-image frame F21 of the second image frame F2 is displayed on the display surface 11 at a third distance D3 from the third sub-image frame F13 at a fourth time. In this embodiment, the display device writes the sub-image frame data of the first sub-image frame F21 of the second image frame F2 into the pixel array of the display device within the fourth time, and turns on the light source of the first color system (red light source) to display the first sub-image frame F21 of the second image frame F2 on the display surface 11 .

In this embodiment, since the first sub-image frame F11, the second sub-image frame F12 and the third sub-image frame F13 are distinguished from the first sub-image frame, each sub-image frame is separated by a frequency of 180Hz. Displayed on the display surface 11, and each sub-image frame data is written into the pixel array of the display device at a frequency of 180 Hz. Of course, when each image frame is divided into different numbers of sub-image frames, the display frequency is Appropriate adjustments must be made. In addition, the distances between the first distance D1 , the second distance D2 and the third distance D3 are equal. In other words, in this embodiment, the control method of the display device is to divide the distance D moved by the moving object O1 in the first image frame F1 and the second image frame F2 into three equal parts, and respectively At the second time and the third time, the first sub-image frame F11, the second sub-image frame F12 and the third sub-image frame F13 of the first image frame F1 are moved by a distance of D/3 and displayed on the display surface 11 .

To sum up, according to a control method of a display device of the present invention, when there is a moving object in the image frame, the image frame is divided into the first sub-image frame, the second sub-image frame and the third sub-image frame. The image frame is matched with the control of the backlight source and the adjustment of the gray scale of the liquid crystal, and is displayed on the display surface at intervals of a time and a distance in sequence, and the image frame is viewed by using the phenomenon of persistence of vision of the human eye. In this way, the areas of the moving objects corresponding to the retina of the human eye in each sub-image frame can overlap, which can avoid the occurrence of color separation caused by the human eye tracking the moving object, and improve the application of color cycles in non-self-illuminating display devices. Show usability.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (14)

1, a kind of control method of non-self-emission display apparatus, it produces at least one first colour system light source, one second colour system light source and one the 3rd colour system light source by a light source module, and show at least one image frame at a display surface, and this image frame has one first sub-image picture frame, one second sub-image picture frame and one the 3rd sub-image picture frame, it is characterized in that it may further comprise the steps:

In a very first time, on this display surface, show this first sub-image picture frame; And

In one second time, on this display surface apart from this this second sub-image picture frame of first sub-image picture frame, one first distance display; And

In one the 3rd time, on this display surface, show the 3rd sub-image picture frame apart from this second sub-image picture frame, one second distance.

2, the control method of non-self-emission display apparatus according to claim 1 is characterized in that wherein said display device in this very first time, a picture frame data of this first sub-image picture frame is write a pixel array of this display surface.

3, the control method of non-self-emission display apparatus according to claim 2 is characterized in that wherein said light source module opens this first colour system light source in this very first time.

4, the control method of non-self-emission display apparatus according to claim 1 is characterized in that wherein said non-self-emission display apparatus in this second time, writes a picture frame data of this second sub-image picture frame one pixel array of this display surface.

5, the control method of non-self-emission display apparatus according to claim 4 is characterized in that wherein said light source module opens this second colour system light source in this second time.

6, the control method of non-self-emission display apparatus according to claim 1, it is characterized in that the wherein said first colour system light source and this second colour system light source be selected from a red light source, a green light source, a blue-light source or a white light source at least one of them.

7, the control method of non-self-emission display apparatus according to claim 1 is characterized in that the wherein said first colour system light source and this second colour system light source comprise at least one light emitting diode.

8, the control method of non-self-emission display apparatus according to claim 1 is characterized in that wherein said non-self-emission display apparatus in the 3rd time, writes a picture frame data of the 3rd sub-image picture frame one pixel array of this display surface.

9, the control method of non-self-emission display apparatus according to claim 8 is characterized in that wherein said light source module opens the 3rd colour system light source in the 3rd time.

10, the control method of non-self-emission display apparatus according to claim 1, it is characterized in that wherein said the 3rd colour system light source be selected from a red light source, green light source, a blue-light source or a white light source at least one of them.

11, the control method of non-self-emission display apparatus according to claim 1 is characterized in that wherein said the 3rd colour system light source comprises at least one light emitting diode.

12, the control method of non-self-emission display apparatus according to claim 1 is characterized in that wherein said first distance equals this second distance.

13, the control method of non-self-emission display apparatus according to claim 1 is characterized in that the wherein said first sub-image data, this second sub-image data and the 3rd sub-image data write a pixel array of this display device respectively with frequency 180Hz.

14, the control method of non-self-emission display apparatus according to claim 1 is characterized in that it is applied to a liquid crystal indicator or a numerical digit light source projection arrangement.

Images