CN102789765B - Image display method and image display system - Google Patents

Abstract

The present invention discloses an image display method, which includes: transmitting first scan line data and second scan line data corresponding to a first image frame to a display screen, wherein the first scan line data at least includes valid display data, and the second scan line data at least includes vertical blanking interval data; and transmitting third scan line data and fourth scan line data corresponding to a second image frame to the display screen, wherein one image frame of the first and second image frames is adjacent to another image frame of the first and second image frames, the third scan line data at least includes valid display data, the fourth scan line data at least includes vertical blanking interval data, and the data volume of the second image frame is less than the data volume of the first image frame. The present invention can make the effective display data of the image frame be transmitted earlier and/or the image quality of the image frame can be improved.

Description

Image display method and image display system

technical field

The present invention relates to image display technology, in particular to a method of adding display data of at least one partial image frame between the display data of two original complete image frames so that the effective display data of the image frame can be transmitted and/or completed in advance An image display method and an image display system capable of improving the image quality of an image frame.

Background technique

For the liquid crystal display screen, since the rotation of the liquid crystal cell itself takes a period of time to stabilize, no matter whether the liquid crystal display screen is used with three-dimensional glasses (such as shutter glasses) to present a three-dimensional (three-dimensional) image Effects for users or liquid crystal display screens to display two-dimensional images for users, how to update the screen in advance to avoid the problem of inter-screen interference (crosstalk) and how to effectively improve the display quality of the screen become this one. Important topics in the technical field.

Contents of the invention

Therefore, one of the technical problems to be solved by the present invention is to provide a display data of at least one partial image frame added between the display data of two original complete image frames, so that the effective display data of the image frames can be transmitted earlier. And/or an image display method and an image display system that can improve the image quality of an image frame.

According to an embodiment of the present invention, an image display method is disclosed. The image display method includes: transmitting a first scan line data and a second scan line data corresponding to a first image frame to a display screen, wherein the first scan line data includes at least one effective display data, and the The second scan line data includes at least one vertical blanking interval data; and a third scan line data and a fourth scan line data corresponding to a second image frame are sent to the display screen, wherein the first and second image frames An image frame adjacent to another image frame of the first and second image frames, the third scan line data includes at least one effective display data, the fourth scan line data includes at least one vertical blanking interval data, and the The amount of data of the second image frame is smaller than the amount of data of the first image frame; wherein, the effective display data of the first scan line data includes a part of the effective display data of an original image frame, and the third scan line data The effective display data of the original image frame includes another part of the effective display data, and the effective display data of the first scan line data further includes a full white frame display data, a full black frame display data or Display data related to the effective display data of the original image frame.

According to an embodiment of the present invention, it further discloses an image display system. The image display system includes a display screen and a processing circuit. The processing circuit is used to transmit a first scan line data corresponding to a first image frame and a second scan line data to the display screen, and transmit a third scan line data corresponding to a second image frame and a The fourth scan line data is sent to the display screen, wherein one image frame of the first and second image frames is adjacent to the other image frame of the first and second image frames, and the first scan line data includes at least one valid display data, the second scan line data includes at least one vertical blanking interval data, the third scan line data includes at least one effective display data, the fourth scan line data includes at least one vertical blanking interval data, and the second image The data amount of the frame is smaller than the data amount of the first image frame; wherein, the valid display data of the first scan line data includes a part of the valid display data of an original image frame, and the valid display data of the third scan line data The display data includes effective display data of another part of the original image frame, and the effective display data of the first scan line data further includes a full white frame display data, a full black frame display data or the original image The display data related to the effective display data of the screen.

The present invention adds display data of at least one partial image frame between the display data of two original complete image frames, so that the effective display data of the image frame can be transmitted earlier and/or the image quality of the image frame can be improved.

Description of drawings

FIG. 1 is a functional block diagram of the first embodiment of the image display system of the present invention.

FIG. 2 is a schematic diagram of an embodiment of an original image frame received by the processing circuit shown in FIG. 1 .

FIG. 3 is a schematic diagram of a first image frame output by the processing circuit shown in FIG. 1 in the first embodiment.

FIG. 4 is a schematic diagram of a second image frame output by the processing circuit shown in FIG. 1 in the first embodiment.

FIG. 5 is a schematic diagram of a first image frame output by the processing circuit shown in FIG. 1 in a second embodiment.

FIG. 6 is a schematic diagram of a second image frame output by the processing circuit shown in FIG. 1 in the second embodiment.

FIG. 7 is a functional block diagram of the second embodiment of the image display system of the present invention.

FIG. 8 is a functional block diagram of a third embodiment of the image display system of the present invention.

FIG. 9 is a schematic functional block diagram of a fourth embodiment of the image display system of the present invention.

FIG. 10 is a schematic functional block diagram of a fifth embodiment of the image display system of the present invention.

FIG. 11 is a functional block diagram of the sixth embodiment of the image display system of the present invention.

FIG. 12 is a flowchart of an embodiment of the image display method of the present invention.

Wherein, the reference signs are explained as follows:

100, 700, 802, 902, 1102 video display device

102 Display screen

104, 704 processing circuit

112, 712 processing unit

114 temporary storage unit

800, 900, 1000, 1100 image display system

804 Stereoscopic glasses

806 Backlight Module

808 control circuit

810 left eye lens

812 Right eye lens

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a functional block diagram of the first embodiment of the image display system of the present invention. In this embodiment, the image display system is implemented by a video display device 100 , as shown in the figure, the video display device 100 includes a display screen 102 and a processing circuit 104 coupled to the display screen 102 . The processing circuit 104 will transmit a first scan line data _D1 and a second scan line data _D2 corresponding to a first image frame F1 to the display screen 102, and transmit a second image immediately after the first image frame F1 A third scan line data D ₃ and a fourth scan line data D ₄ corresponding to the frame F2 are sent to the display screen 102, wherein the first scan line data D ₁ contains at least one effective display data (active data), and the second scan line data D 1 The data D ₂ includes at least one vertical blanking interval (vertical blanking interval, VBI) data, the third scan line data D ₃ includes at least one effective display data, the fourth scan line data D ₄ includes at least one vertical blanking interval data, and the first The data volume of the second image frame F2 is different from that of the first image frame F1 (for example, the total number of scan lines in the second image frame F2 is different from the total number of scan lines in the first image frame F1). In addition, in this embodiment, the processing circuit 104 includes a processing unit 112 and a temporary storage unit 114, wherein the processing unit 112 may be an image scaling processing circuit (scalar), and the temporary storage unit 114 may be a frame buffer (framebuffer) Therefore, the processing unit 112 can process a received original image frame F_IN through a built-in microprocessor, and output the scan line data of the first image frame F1 and the second image frame F2 to the temporary storage unit 114 one by one, so as to The scan line data to be transmitted to the display screen 102 is temporarily stored by the temporary storage unit 114, and then the scan line data of the first image frame F1 and the second image frame F2 are output to the display screen 102 one by one, so that the display screen 102 The screen contents of the first image frame F1 and the second image frame F2 are displayed on the top. The operation of the processing unit 112 in the processing circuit 104 to generate the first image frame F1 and the second image frame F2 will be described in detail below.

Please refer to FIG. 2, FIG. 3 and FIG. 4 together. FIG. 2 is a schematic diagram of an embodiment of the original image frame F_IN received by the processing circuit 104 shown in FIG. A schematic diagram of the first image frame F1 output in the first embodiment, and FIG. 4 is a schematic diagram of a second image frame F2 output by the processing circuit 104 shown in FIG. 1 in the first embodiment. The data of each image frame can be divided into: the effective display data that will display the actual image content in the effective display area of the display screen 102, and the horizontal blanking interval (horizontal blanking interval) that will not display any actual image content on the display screen 102. blanking interval, HBI) data and vertical blanking interval area data. As shown in Figure 2, the width and height of the original image frame F_IN are W0 and H0 respectively. In other words, the original image frame F_IN can be regarded as having H0 scanning lines, and each scanning line of the original image frame F_IN can be regarded as having W0 pixels, in addition, the effective display data of the original image frame F_IN is AA_0 (which corresponds to the display data of H01*W01 pixels, for example, W01=1920 and H01=1080), and the vertical blanking interval area data of the original image frame F_IN is VBI_0 (which corresponds to the display data of H02*W01 pixels), the horizontal blanking interval area data of the original image frame F_IN contains HBI _{AA_0} (which corresponds to the effective display data of AA_0 and has the display data of H01*W02 pixels) and HBI _{VBI_0} (which corresponds to VBI_0 and has display data of H02*W02 pixels).

In the first embodiment, the processing unit 122 in the processing circuit 104 directly uses the data of the original image frame F_IN as the data of the first image frame F1, as shown in FIG. 3 , the effective display data AA_1 of the first image frame F1 will be equal to AA_0, the vertical blanking interval area data VBI_1 of the first image frame F1 will be equal to VBI_0, _and the horizontal blanking interval area data of the first image frame F1 will contain HBI _{AA_1} and HBI equal to HBI _{AA_0} and HBI VBI_0 respectively _{VBI_1} , please note that in the first embodiment, the above-mentioned first scan line data _D1 includes effective display data AA_1 and horizontal blanking interval area data HBI _{AA_1} , and the above-mentioned second scan line data _D2 includes vertical The blanking interval data VBI_1 and the horizontal blanking interval area data HBI _{VBI_1} , therefore, the effective display data AA_1 of the first scan line data _D1 will include all the effective display data AA_0 in the original image frame F_IN.

In addition, for the second image frame F2 immediately after the first image frame F1, its data volume will be less than the data amount of the first image frame F1, as shown in Figure 4, the width and height of the second image frame F2 are respectively W0 and H2 (H2<H0), therefore, the second image frame F2 can be regarded as having H2 scanning lines, and each scanning line of the second image frame F2 can be regarded as having W0 pixels. In addition, the second image frame F2 can be regarded as having W0 pixels. The effective display data of the image frame F2 is AA_2 (the display data corresponding to H21*W01 pixels), the vertical blanking interval area data of the second image frame F2 is VBI_2 (the display data corresponding to H22*W01 pixels), the first The horizontal blanking interval area data of the two-image frame F2 includes HBI _{AA_2} (which corresponds to the effective display data of AA_2 and has display data of H21*W02 pixels) and HBI _{VBI_2} (which corresponds to the vertical blanking interval area data VBI_2, and display data with H22*W02 pixels), please note that in this embodiment, the data volume of the effective display data AA_2 is different from the data volume of the effective display data AA_1, for example, the number of scanning lines of the effective display data AA_2 The number is different from the number of scanning lines of the effective display data AA_1 (ie (H21≠H01); in addition, in this embodiment, the data volume of the vertical blanking interval area data VBI_2 is not necessarily equal to that of the vertical blanking interval area data VBI_1 The amount of data, for example, the number of scan lines of the vertical blanking interval area data VBI_2 is not necessarily equal to the number of scan lines of the vertical blanking interval area data VBI_1 (i.e. (H22≠H02), in one embodiment, vertical blanking interval The number of scan lines of the interval area data VBI_2 can be smaller than the number of scan lines of the vertical blanking interval area data VBI_1. In this way, the data volume of the effective display data AA_2 can be increased to further improve the quality of the planar image/stereoscopic image. Please note that in the first embodiment, the above-mentioned third scan line data _D3 includes effective display data AA_2 and horizontal blanking interval area data HBI _{AA_2} , and the above-mentioned fourth scan line data _D4 includes vertical blanking intervals The data VBI_2 and the horizontal blanking interval area data HBI _{VBI_2} , therefore, the first image frame F1 and the second image frame F2 will have respective horizontal blanking intervals when they are actually displayed.

It can be seen from the figure that compared with the first image frame F1, the second image frame F2 is only a partial image frame rather than a complete image frame. In other words, the corresponding output frame of the effective display data AA_2 of the second image frame F2 is not The effective display area in the display screen 102 will be filled. In the first embodiment of the processing circuit 104, when the effective display data AA_0 of the original image frame F_IN is used to drive the effective display area of the display screen 102 to display an image frame with the same color, then the effective display data of the second image frame F2 The data AA_2 may include an all-white image display data (for example, each pixel value in the effective display data AA_2 is "255") or an all-black image display data (for example, each pixel value in the effective display data AA_2 is "0" ), for example, when the display screen 102 adopts a TN type liquid crystal display panel, then the effective display data AA_2 of the second image frame F2 will be set as the full white frame display data by the processing unit 112 in the processing circuit 104, and On the one hand, when the display screen 102 adopts a VA-type liquid crystal display panel, the effective display data AA_2 of the second image frame F2 will be set by the processing unit 112 in the processing circuit 104 as the display data of an all-black frame, so that, Properly setting the effective display data AA_2 of the second image frame F2 based on the display characteristics of the TN type liquid crystal display panel and the VA type liquid crystal display panel itself will enable the display screen 102 to be displayed according to the effective display data AA_1 of the first image frame F1. The displayed picture of the same color can last for a long time, so that the user can see a clearer plane image or three-dimensional image. In addition, in the first embodiment of the processing circuit 104, when the effective display data AA_0 of the original image frame F_IN is used to drive the effective display area of the display screen 102 to display image frames with different colors (such as image frames with different frame contents) , the processing unit 112 of the processing circuit 104 will set the effective display data AA_2 of the second image frame F2 as display data related to the effective display data AA_0 of the original image frame F_IN, and set the effective display data AA_2 of the second image frame F2 The operation of displaying the data AA_2 can adopt one of the following processing methods.

The first processing method is: the processing unit 112 of the processing circuit 104 can directly repeat a part of the effective display data AA_0 of the original image frame F_IN as the effective display data AA_2 of the second image frame F2, for example, the effective display data AA_2 can be the content of the collection of multiple scan lines located in the upper half, the content of the collection of multiple scan lines located in the lower half, the content of the collection of multiple scan lines located in the central part of the effective display data AA_0, the entire The content of the set of even scan lines in the screen, the content of the set of odd scan lines in the whole screen, or the content of the set of any scan lines in the whole screen.

The second processing method is: the processing unit 112 of the processing circuit 104 performs interpolation processing (such as averaging processing) through the effective display data AA_0 of the original image frame F_IN and the effective display data of the next original image frame F_IN', and A part of the content is selected from the interpolation processing result as the effective display data AA_2 of the second image frame F2.

The third processing method is: the processing unit 112 of the processing circuit 104 performs superposition processing through the effective display data AA_0 of the original image frame F_IN and the effective display data of the next original image frame F_IN', and selects Part of the content is used as the effective display data AA_2 of the second image frame F2. For example, an appropriate mixing ratio can be given to the effective display data AA_0 of the original image frame F_IN and the effective display data of the next original image frame F_IN' , after that, the superposition processing result is produced through the addition or subtraction processing, that is, the processing unit 112 of the processing circuit 104 determines the effective value of the second image frame F2 through the concept of dithering (dithering) in the superposition processing. Display data AA_2.

The fourth processing method is: the processing unit 112 of the processing circuit 104 performs specific image processing (such as adjustment of contrast, adjustment of saturation, adjustment of gamma value, adjustment of sharpness and /or brightness adjustment), and select a part of the content from the image processing result as the effective display data AA_2 of the second image frame F2.

The fifth processing method is: the processing unit 112 of the processing circuit 104 only sets the effective display data AA_2 of the second image frame F2 according to the content of the scanning lines that are not completely black or not completely white in the effective display data AA_0 of the original image frame F_IN . For example, the processing unit 112 of the processing circuit 104 only sets the effective display data AA_2 of the second image frame F2 according to the content of the scan lines not belonging to the black margin in the effective display data AA_0 of the original image frame F_IN, for example , the processing unit 112 of the processing circuit 104 will first detect whether there is a scanning line content with a black border at the top and bottom of the screen in the effective display data AA_0 of the original image frame F_IN, if it detects that the effective display data AA_0 of the original image frame F_IN If the scan line content belonging to the black border is included, the valid display data AA_2 of the second image frame F2 will not include the scan line content of the black border.

The sixth processing method is: the processing unit 112 of the processing circuit 104 will determine which pixels need to be specially optimized for display based on the component characteristics of the display screen 102 (such as the response time of each liquid crystal unit), for example, the processing of the processing circuit 104 The unit 112 can refer to an overdrive (overdrive) lookup table or an additionally established lookup table to know the liquid crystal unit with a longer response time in the display screen (such as a liquid crystal display screen) 102, and set the second image frame F2 accordingly. Valid display data AA_2 is used to enable the liquid crystal cells to spin up to achieve the desired state through proper driving.

Please note that the above is only used as an example rather than a limitation of the present invention, that is, any technology that can add display data of at least one partial image frame between the display data of two original complete image frames (or Any technique that increases the image update rate by overlapping images) can be adopted by the processing unit 112 of the processing circuit 104 to generate the desired effective display data AA_2.

As shown above, the second image frame F2 is transmitted to the display screen 102 immediately after the first image frame F1, and the data amount of the second image frame F2 is smaller than the data amount of the first image frame F1, therefore, the second image frame F2 Part of the content of the first image frame F1 (that is, the original image frame F_IN) will be updated. For example, the effective display data AA_0 of the original image frame F1 includes a first effective display data AA_01 and a second effective display data AA_02 , and the content displayed by the second effective display data AA_02 will be replaced/updated by the display content of the effective display data AA_2, therefore, the effective display data AA_2 can be used to modify or improve the original displayed content of the second effective display data AA_02, Overall, the scan lines driven sequentially by the second effective display data AA_02 (which corresponds to the first image frame F1) and the effective display data AA_2 (which corresponds to the second image frame F2) will present a better image output. result.

Please note that the second image frame is F2 and is not a complete image frame. Therefore, the size of the second image frame can be appropriately set to be F2 in combination with the bandwidth limitation of the display screen 102 and application requirements (for example, the effective display data AA_2 amount of data). For example, the total number of scanning lines included in the effective display data AA_2 can be determined based on the frame refresh rate, the power environment of the video display device and/or the flicker frequency/environment brightness of the light source where the video display device is located. In the embodiment, when the frame update rate is high, the total number of scan lines included in the effective display data AA_2 will be small, and vice versa; when the AC frequency of the power supply environment where the video display device is located is high, the effective display data AA_2 The total number of scan lines included will be less, and vice versa; when the light source where the video display device is located has a higher flicker frequency, the total number of scan lines included in the effective display data AA_2 will be less, and vice versa; and when the video When the brightness of the environment where the display device is located is high, the total number of scan lines included in the effective display data AA_2 will be less, and vice versa.

Please refer to FIG. 2, FIG. 5 and FIG. 6 together. FIG. 5 is a schematic diagram of the first image frame F1 output by the processing circuit 104 shown in FIG. 1 in the second embodiment, and FIG. A schematic diagram of the second image frame F2 output by the processing circuit 104 in the second embodiment. In the second embodiment, the processing unit 122 in the processing circuit 104 uses the set of the first effective display data AA_01 of the original image frame F_IN and the effective display data AA_2 of the second image frame F2 in the aforementioned first embodiment as the The effective display data AA_1' of the first image frame F1 is used to set the effective display data AA_2' of the subsequent second image frame F2 with the second effective display data AA_02 of the original image frame F_IN in the aforementioned first embodiment. Please note that in the second embodiment, the above-mentioned first scan line data _D1 will include effective display data AA_1' and horizontal blanking interval area data HBI _{AA_1} , and the above-mentioned second scan line data _D2 will include vertical The blanking interval data VBI_1 and the horizontal blanking interval area data HBI _{VBI_1} , therefore, the effective display data AA_1' of the first scan line data _D1 will include a part of the effective display data in the original image frame F_IN, in addition, the above The third scan line data _D3 will include effective display data AA_2' and horizontal blanking interval area data HBI _{AA_2} , and the above-mentioned fourth scan line data _D4 will include vertical blanking interval data VBI_2 and horizontal blanking interval area data HBI _{VBI_2} , therefore, the effective display data AA_2' of the third scan line data _D3 will contain another part of the effective display data in the original image frame F_IN.

Comparing FIG. 3 and FIG. 5 and comparing FIG. 4 and FIG. 6, it can be easily known that in the second embodiment, the processing circuit 104 passes a part of the display data of the original image frame F_IN (namely the first valid display data AA_01) through The effective display data AA_1' of the first image frame F1 is transmitted to the display screen 102, and then another part of the display data of the original image frame F_IN (ie, the second effective display data AA_02) is effectively displayed by the subsequent second image frame F2 The data AA_2' is sent to the display screen 102. In addition, the effective display data AA_2 generated by one of the aforementioned multiple processing methods will first be sent to the display screen 102 through the effective display data AA_1' of the first image frame F1. Please note that the scan lines sequentially driven by the second effective display data AA_02 and the effective display data AA_2 (first embodiment) and the scan lines sequentially driven by the effective display data AA_2 and the second effective display data AA_02 (Second Embodiment) can produce substantially the same image output results, so the effect of improving image quality can be achieved.

In the above-mentioned first and second embodiments of the processing circuit 104, a part of the image frame (i.e. the second image frame F2) is mainly added after a complete image frame (i.e. the first image frame F1). A part of the image frame (ie the second image frame F2 ) is added before a complete image frame (ie the first image frame F1 ). Please refer to FIG. 7 . FIG. 7 is a functional block diagram of a second embodiment of the image display system of the present invention. In this embodiment, the image display system is realized by a video display device 700 . As shown in the figure, the video display device 700 includes a display screen 102 and a processing circuit 704 coupled to the display screen 102. In this embodiment, the processing circuit 704 includes a processing unit 712 and a temporary storage unit 114, wherein the processing unit 712 can be an image scaling processing circuit, and the temporary storage unit 114 can be a frame buffer. Similarly, the processing unit 712 can process the received original image frame F_IN through a built-in microprocessor, and output the first image frame according to The scanning line data of F1' and the second image frame F2' are sent to the temporary storage unit 114. Further, the processing circuit 712 will transmit a first scanning line data D1' corresponding to the first image frame _F1 ' and a second The scan line data D ₂ ′ is sent to the display screen 102, and a third scan line data D ₃ ′ and a fourth scan line data D ₄ corresponding to the second image frame F2 ′ following the first image frame F1 ′ are transmitted ' to display screen 102. However, in this embodiment, the first image frame F1' is a part of the image frame, and the second image frame F2' is a complete image frame. For example, the first image frame F1' is shown in FIG. 4/FIG. The second image frame F2 (ie D ₁ '=D ₃ and D ₂ '=D ₄ ), and the second image frame F2' is the first image frame F1 (ie D ₃ ' =D ₁ and D ₄ '=D ₂ ). Since those skilled in the art can easily understand the operation of the video display device 700 shown in FIG. 7 based on the previous description, details will not be repeated here.

To sum up, by properly setting the content of the newly added second image frame F2/first image frame F1', the purpose of improving the image quality can be achieved. In addition, the transmission of other data can also be accelerated through the newly added second image frame F2, because the effective display data of the first image frame F1 before the second image frame F2 can be transmitted to the display screen 102 by the processing circuit 104 in advance, thus The display screen 102 (such as a liquid crystal display screen) has more time to complete the stable display of the entire image frame; similarly, the transmission of other data can also be accelerated through the newly added first image frame F1', because it is located in the first image frame The effective display data of the second image frame F2 after F1' can be transmitted to the display screen 102 by the processing circuit 104 earlier, thus allowing the display screen 102 (such as a liquid crystal display screen) to have more time to complete the stable display of the entire image frame. For the operation principle of adding new data to speed up the transmission of other data, please refer to other mainland patent applications of the same applicant (such as the mainland patent application claiming the priority of Taiwan patent application No. 100104886 and Taiwan patent application No. 100101348 in Taiwan) , so it will not be repeated here.

The driving mechanism disclosed in the present invention is not only applicable to flat image display, but also applicable to stereoscopic image display. Please refer to FIG. 8 . FIG. 8 is a functional block diagram of a third embodiment of the image display system of the present invention. In this embodiment, the image display system 800 includes a video display device 802 and a stereoscopic glasses 804 . The video display device 802 includes the above-mentioned display screen 102 and processing circuit 104 , as well as a backlight module 806 for providing the backlight required by the display screen (such as a liquid crystal display screen) 102 . The 3D glasses 804 include a control circuit 808 , a left lens 810 and a right lens 812 . The video display device 802 cooperates with the 3D glasses 804 to provide 3D images to the user. The left-eye lens 810 is used for the user to watch the left-eye image frame, and the right-eye lens 812 is used for the user to watch the right-eye image frame. In addition, the control circuit 808 is electrically connected to the left-eye lens 810 and the right-eye lens 812. To output control signals S1, S2 to the left-eye lens 810 and the right-eye lens 812 respectively, to control the left-eye lens 810 to switch between the open state and the closed state and to control the right-eye lens 812 to switch between the open state and the closed state switch. For example, the 3D glasses 804 are shutter glasses, therefore, the left-eye lens 810 and the right-eye lens 812 are both shutter lenses and respectively have a liquid crystal layer, and the control signals S1 and S2 can be control voltages for controlling the liquid crystal layer The rotation of the liquid crystal unit in the middle is to achieve the purpose of controlling the light transmittance, however, this is only used as an example and is not used as a limitation of the present invention. For example, any structure with light transmittance control can be used Realizing the left eyeglass 810 and the right eyeglass 812 can also achieve the purpose of controlling the left eyeglass 810 and the right eyeglass 812 to switch between the open state and the closed state. In addition, the 3D glasses 804 are not limited to shutter glasses, and any 3D glasses that can be used with the video display device 802 to view 3D images and apply the 3D image display mechanism disclosed in the present invention are in line with the spirit of the present invention.

In the present invention, the above-mentioned "closed state" means that the left-eye/right-eye lens (such as a shutter lens) is completely opaque (that is, the light transmittance is 0%). Therefore, as long as the left-eye/right-eye lens is not Completely opaque (that is, the light transmittance is not 0%), it can be considered to be in the "open state". For example, when the shutter lens is fully open (such as the light The light transmittance is 50%) or slightly open (for example, the light transmittance is 0.1%), and the shutter lens can be considered to be in an open state. In short, when the light transmittance of the left-eye/right-eye lens is greater than 0% (but less than or equal to 100%), the left-eye/right-eye lens can be considered to be in an open state.

The 3D glasses 804 can be worn by the user to watch the 3D images presented by the video display device 802 through the display screen 102 . For example, in the embodiment shown in FIG. 8, the video display device 802 can be a liquid crystal display, therefore, the display screen 102 is a liquid crystal display screen, and the image light output generated by the display screen 102 is then passed through the stereoscopic glasses. 804 to control whether it can enter the user's left or right eye. Please note that the video output device 802 is not limited to be a liquid crystal display, that is, the video output device 802 can also be any video output device that can be used together with the stereoscopic glasses 804 to present a stereoscopic image to the user, such as an organic light emitting diode ( Organic Light-Emitting Diode, OLED) display, plasma display, display/projector using Digital Light Processing technology (Digital Light Processing, DLP), display/projector using Liquid Crystal on Silicon (LCoS) display technology, etc. In other words, if the stereo glasses 804 are shutter glasses, the video display device 802 is any display or projector that can be used with the shutter glasses.

For the example in which the stereoscopic glasses 804 are shutter glasses, the control circuit 808 can properly control the left eye glass 810 and the right eye glass 812 to switch between the open state and the closed state. For example, the video display device 802 can transmit a signal device (not shown) to communicate with the 3D glasses 804, for example, the 3D glasses (such as shutter glasses) 804 can transmit via wire or wirelessly (such as infrared transmission, ZigBee transmission, ultra-wideband (Ultrawideband, UWB) transmission, WiFi transmission, Radio Frequency (RF) transmission, DLP optical signal transmission or Bluetooth (Bluetooth) transmission) to receive the information sent by the video display device 802, and the control circuit 808 can generate the required control signal S1 based on the received information , S2. Since those skilled in the art can easily know the communication mechanism between the 3D glasses and the video display device, relevant details will not be repeated here.

For the image display system 800 shown in FIG. 8, since the processing circuit 104 will sequentially transmit the first image frame F1 (full image frame) and the second image frame F2 (partial image frame), therefore, the processing circuit 104 transmits During the period of the second, third, and fourth scan line data _D2 - _D4 , the backlight module 806 corresponding to the display screen 102 will be turned on to provide the backlight required by the display screen 102 and/or the control circuit 808 will turn on the left-eye lens 810 and one of the right eye lens 812. In other words, in addition to speeding up the transmission of other data and improving the image quality through the newly added second image frame F2, the user can also use the time for transmitting the newly added second image frame F2 to allow the user to watch a stereoscopic image (i.e. Turn on a lens of the 3D glasses 804 and/or activate the backlight module 806).

In the embodiments shown in FIG. 1 , FIG. 7 and FIG. 8 , the control circuit 104/704 is disposed in the video display device (such as a liquid crystal display) 100/700/802, however, the present invention is not limited thereto. Please refer to FIG. 9 . FIG. 9 is a functional block diagram of a fourth embodiment of the image display system of the present invention. The image display system 900 includes a video display device 902 and the processing circuit 104 shown in FIG. 1 , and the video display device 902 includes the aforementioned display screen 102 . In addition, for example, the processing circuit 104 is set in a computer mainframe, therefore, after the processing circuit 104 completes the processing of the first image frame F1 and the second image frame F2, it combines the data of the first image frame F1 with the second image frame F1 The data of the two image frames F2 are transmitted to the video display device 902 one by one, so as to be further transmitted to the display screen 102 for displaying the image frames.

Please refer to FIG. 10 . FIG. 10 is a functional block diagram of a fifth embodiment of the image display system of the present invention. The image display system 1000 includes the video display device 902 shown in FIG. 9 and the processing circuit 104 shown in FIG. 7. In this embodiment, the processing circuit 704 is arranged outside the video display device 902. For example, the processing circuit 704 is set in a host computer, therefore, after the processing circuit 704 completes the processing of the first image frame F1' and the second image frame F2', it combines the data of the first image frame F1' with the data of the second image frame F2' The data is transmitted to the video display device 902 one by one, so as to be further transmitted to the display screen 102 for image display.

Please refer to FIG. 11 . FIG. 11 is a functional block diagram of a sixth embodiment of the image display system of the present invention. The image display system 1100 includes a video display device 1102, the aforementioned processing circuit 104 and the stereo glasses 804, and the video display device 1102 includes the aforementioned display screen 102 and the backlight module 806. In this embodiment, the processing circuit 104 is arranged in In addition to the video display device 1102, for example, the processing circuit 104 is set in a host computer, therefore, after the processing circuit 104 completes the processing of the first image frame F1 and the second image frame F2, the first image frame F1 The data of and the data of the second image frame F2 are transmitted to the video display device 1102 one by one, so as to be further transmitted to the display screen 102 for displaying the image frame. Since the functions and operations of each component in FIGS. 9 to 11 have been described in detail above, they will not be repeated here.

Please refer to FIG. 12 . FIG. 12 is a flowchart of an embodiment of the image display method of the present invention. The image display method of the present invention can be applied to the aforementioned image display system, and can be briefly summarized as follows:

Step 1202: Send the first scan line data and the second scan line data corresponding to the first image frame to the display screen, wherein the first scan line data includes at least valid display data, and the second scan line data includes at least vertical blanking interval data; and

Step 1204: Send the third scan line data and the fourth scan line data corresponding to the second image frame to the display screen, wherein an image frame of the first and second image frames is adjacent to the first and second image frames Another image frame (for example, the first image frame is F1/F1' and the second image frame is F2/F2'), the third scan line data contains at least valid display data, and the fourth scan line data contains at least The vertical blanking interval data, and the data amount of the second image frame is different from the data amount of the first image frame.

Since those skilled in the art can easily understand the operation of each step in FIG. 12 through the above description about the image display system, for the sake of brevity in the description, related descriptions will not be repeated here.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (12)

1. An image display method, comprising: Transmitting a first scan line data and a second scan line data corresponding to a first image frame to a display screen, wherein the first scan line data includes at least one effective display data, and the second scan line data includes at least one There is a vertical blanking interval data; and transmitting a third scan line data and a fourth scan line data corresponding to a second image frame to the display screen, wherein an image frame of the first and second image frames is adjacent to the first and second image frames Another image frame, the third scan line data includes at least one effective display data, and the fourth scan line data includes at least one vertical blanking interval data; It is characterized in that the data amount of the second image frame is different from the data amount of the first image frame, the effective display data of the first scan line data includes a part of the effective display data of an original image frame, and the first image frame The valid display data of the three scan line data includes the valid display data of another part of the original image frame, and the valid display data of the first scan line data further includes a full white picture display data, a full black picture Frame display data or display data related to effective display data of the original image frame. 2. The image display method according to claim 1, wherein the data amount of the vertical blanking interval data of the fourth scanning line data is different from the data of the vertical blanking interval data of the second scanning line data quantity. 3. The image display method as claimed in claim 1, wherein the data amount of the effective display data of the third scan line data is different from the data amount of the effective display data of the first scan line data. 4. The image display method according to claim 1, further comprising: During the period when the data of the second, third and fourth scanning lines are sent to the display screen, a lens of a three-dimensional glasses is turned on. 5. The image display method according to claim 1, further comprising: During the period when the data of the second, third and fourth scan lines are transmitted to the display screen, a backlight module corresponding to the display screen is turned on. 6. The image display method according to claim 1, further comprising: receiving effective display data of an original image frame from a video display device comprising the display screen; Wherein at least one of the first scan line data and the third scan line data is generated by the received effective display data of the original image frame. 7. The image display method according to claim 1, wherein the step of transmitting the first scan line data and the second scan line data corresponding to the first image frame comprises: the first and second scan line data The second scan line data is transmitted to a video display device including the display screen; and the step of transmitting the third scan line data and the fourth scan line data corresponding to the second image frame immediately after the first image frame includes Yes: sending the third and fourth scanning line data to the video display device including the display screen. 8. An image display system comprising: a display screen; and A processing circuit, coupled to the display screen, for sending a first scan line data corresponding to a first image frame and a second scan line data to the display screen, and sending a second image frame corresponding to A third scan line data and a fourth scan line data are sent to the display screen, wherein one image frame of the first and second image frames is adjacent to the other image frame of the first and second image frames, and the first The scan line data includes at least one effective display data, the second scan line data includes at least one vertical blanking interval data, the third scan line data includes at least one effective display data, and the fourth scan line data includes at least one vertical blanking interval data. interval data; It is characterized in that it also includes: the data amount of the second image frame is different from the data amount of the first image frame, and the effective display data of the first scan line data includes a part of the effective display data of an original image frame , the valid display data of the third scan line data includes valid display data of another part of the original image frame, and the valid display data of the first scan line data further includes a full white frame display data, a The full black screen display data or the display data related to the effective display data of the original image frame. 9. The image display system according to claim 8, wherein the data amount of the vertical blanking interval data of the fourth scanning line data is different from the data of the vertical blanking interval data of the second scanning line data quantity. 10. The image display system as claimed in claim 8, wherein the data amount of the effective display data of the third scan line data is different from the data amount of the effective display data of the first scan line data. 11. The image display system according to claim 8, further comprising: a stereoscopic glasses; During the period when the data of the second, third and fourth scanning lines are sent to the display screen, a lens of the three-dimensional glasses will be turned on. 12. The image display system according to claim 8, further comprising: a backlight module; The backlight module corresponding to the display screen is turned on during the period when the data of the second, third, and fourth scanning lines are transmitted to the display screen.