This application claims the priority benefit of Taiwan application serial no. 99134244, filed Oct. 7, 2010. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
1. Field of the Invention
The present invention relates to a display method, in particular, to a display method for a three-dimensional (3D) image.
2. Description of Related Art
With the constant development of the technology, as for the development of the display technology, besides pursuing the object of light, thin, short, and small displays, the object of displaying a 3D image is also hoped to be achieved. Generally, the theory of displaying the 3D image is that, a left-eye image and a right-eye image which may form the 3D image are delivered to the left eye and the right eye respectively, so that a 3D image is constructed in a viewer's brain.
Accordingly, the present invention is directed to two display methods, which solve the problem that the display quality is reduced due to cross-talk of the left-eye image and the right-eye image in the conventional method.
A display method of the present invention includes the following steps. In a first frame, a first image is displayed by a plurality of first regions of a display area of a display apparatus, and a dark image is displayed by a plurality of second regions of the display area of the display apparatus display at the same time. The display region has a plurality of pixels arranged as an array. Each first region includes at least one of the pixels, and the first regions are uniformly distributed in the display area. Each second region includes at least one of the pixels, and the second regions are uniformly distributed in the display area. In a second frame immediately after the first frame, the dark image is displayed by the first region of the display area of the display apparatus, and a second image is displayed by the second region of the display area of the display apparatus at the same time. The first image and the second image construct a 3D image.
Another display method of the present invention is used for displaying a 3D image, which includes the following steps. The 3D image is constructed by a first image and a second image, and an image capturing time difference between the first image and the second image is less than 1/60 second. In a first frame, the first image is displayed by a plurality of first regions of a display area of the display apparatus, and a dark image is displayed by a plurality of second regions of the display area of the display apparatus at the same time. The display area has a plurality of pixels arranged as an array. Each first region includes at least one of the pixels, and the first regions are uniformly distributed in the display area. Each second region includes at least one of the pixels, and the second regions are uniformly distributed in the display area. In a second frame immediately after the first frame, the dark image is displayed by the first region of the display area of the display apparatus, and the second image is displayed by the second region of the display area of the display apparatus.
In an embodiment of the present invention, the first regions have odd-row pixels, and the second regions have even-row pixels.
In an embodiment of the present invention, the first regions have odd-column pixels, and the second regions have even-column pixels.
In an embodiment of the present invention, the first regions and the second regions are interlaced into a checkerboard pattern.
In an embodiment of the present invention, a total area of the first regions is equal to a total area of the second regions.
In an embodiment of the present invention, the image capturing time difference of the first image and the second image is less than 1/60 second.
In an embodiment of the present invention, image capturing angles of the first image and the second image are different.
In an embodiment of the present invention, the dark image is a black image.
In an embodiment of the present invention, the display apparatus includes a liquid crystal panel and a backlight module. The liquid crystal panel has the display area, and the backlight module turns on in the whole time during the first frame and the second frame.
In an embodiment of the present invention, the display apparatus includes a liquid crystal panel and a backlight module. The liquid crystal panel has the display area, and the backlight module turns on in part time during the first frame and the second frame.
In view of the above, in the display method of the present invention, the first regions that display the first image in the first frame are used to display the black image in the second frame, so that the cross-talk phenomenon between the first image and the second image is alleviated, thus improving the display quality.
In order to make the aforementioned features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
The display method of this embodiment includes the following steps. Referring to
Referring to
It can be known from the above that, the first regions R12 are used to display the first image in the first frame, and are used to display the dark image in the second frame. The second regions R14 are used to display the dark image in the first frame, and are used to display the second image in the second frame. It is supposed that the first image is a left-eye image to be delivered to the left eye of the viewer, and the second image is a right-eye image to be delivered to the right eye of the viewer in the following. As for the first regions R12, the left eye of the viewer may see the first image in the first frame, and the right eye of the viewer only sees the dark image in the second frame. As for the second regions R14, the right eye of the viewer only sees the dark image in the first frame, and the left eye of the viewer may see the second image in the second frame. As for the single eye, when the dark image is generated, the vision of the eye has the feature of motion tracking, and thus the brain of the viewer has time to compensate the non-continuous place between the images, thus reducing the cross-talk phenomenon of the viewer. Even if the display apparatus has low speed of image switching, the cross-talk phenomenon of switching the first image to the dark image is slight, and the cross-talk phenomenon of switching the dark image to the second image is also slight. Therefore, the display method of the present invention can not only alleviate the cross-talk phenomenon, but also improve the display quality.
In the rear of the first frame and the second frame, after the first regions R12 and the second regions R14 achieve a stable displaying state, the backlight module 110 turns on. In this way, the possibility of distortion of the image seen by the viewer may be reduced. The forepart of each frame is an update period used for updating the image, and the rear of each frame is a display period used for displaying the correct images for the viewer. Specifically, the update period is a period in which the liquid crystal molecules are driven by a voltage to a gray scale to be displayed after an image signal is input, and the display period is a period of displaying the correct gray scale image after the driving of the liquid crystal molecules are completed. Since the left lens 132 and the right lens 134 of the glasses 130 need to be in the display period independently to receive a correct image through light transmission, the backlight module 110 can be increased the brightness to keep the brightness of the whole image when the backlight module 110 is not turned on in full time. Definitely, the backlight module 110 may also be turned on in the whole time, and many conventional arts may reduce the possibility of distortion of the image seen by the viewer. In addition, during the period from the time when the backlight module 110 is turned on to the time when the backlight module 110 is turned off, the left lens 132 of the glasses 130 is enabled to be in the state of light-transmissive, and the right lens 134 of the glasses 130 is enabled to be in the state of light-proof, so that the left-eye image displayed by the first regions R12 and the dark image displayed by the second regions R14 may achieve the left eye of the viewer, and the left-eye image is avoided from achieving the right eye of the viewer. In addition, the time point that the left lens 132 is converted from the light-proof state to the light-transmissive state is earlier than the time point that the backlight module 110 is turned on in the first frame, and the time point that the left lens 132 is converted from the light-proof state to the light-transmissive state is later than the time point that the backlight module 110 is turned off, so that the light-transmissive time of the left lens 132 is longer than the opening time of the backlight module 110. In this way, the time of receiving the left-eye image for the viewer is increased, and the image brightness felt by the viewer is improved. The operation manner of the right lens 134 is similar to the left lens 132, and will not be repeated herein.
It should be noted that, the display method of the present invention may be executed not only on a liquid crystal display apparatus, but also on a plasma display apparatus, an organic electroluminescence display apparatus or other display apparatuses.
In addition, in this embodiment, in a third frame immediately after the second frame and similar to the first frame, a third image is displayed by the first regions R12, and the dark image is displayed by the second regions R14 at the same time. In a fourth frame immediately after the third frame and similar to the second frame, the dark image is displayed by the first regions R12, and a fourth image is displayed by the second regions R14 at the same time. It is supposed that the first image and the third image are left-eye images to be delivered to the left eye of the viewer, and the second image and the fourth image are right-eye images to be delivered to the right eye of the viewer. In other words, the first regions R12 either display the left-eye image or display the dark image, and the second regions R14 either display the right-eye image or display the dark image.
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In addition, in order to implement the display method of the above embodiments, a timing controller of the display apparatus should insert data of the first image into a plurality of pieces of data of the low gray scale after receiving the data of the first image, and output the data in sequence to the pixels of the display apparatus after reordering, so as to accord with the requirement of the display methods of various embodiments. Definitely, the inserting data of the low gray scale and the reordering may be executed by a computer or a scaler of other signal resources before the data is input in the display apparatus.
Above all, in the display method of the present invention, the same regions of the display apparatus display the image to be watched by the viewer in only one frame of two adjacent frames, and display the dark image in the other frame, and therefore, the cross-talk phenomenon between images in adjacent frames may be alleviated, and the display quality of the 3D image is also improved.
It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims and their equivalents.
Number | Date | Country | Kind |
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99134244 | Oct 2010 | TW | national |