TWI423197B - Driving method and displaying apparatus - Google Patents

Description

Driving method and display device

The present invention relates to a driving method, and more particularly to a driving method of a display device for displaying a stereoscopic image and the display device.

With the advancement of technology, in the development of display technology, in addition to pursuing the slimness and shortness of the display, it is more desirable to achieve the goal of displaying stereoscopic images. In general, the principle of displaying a stereoscopic image is to send a left-eye image and a right-eye image, which can form a stereoscopic image, into the left and right eyes, respectively, thereby causing the brain to construct a three-dimensional image.

1 is a schematic diagram of a conventional stereoscopic display including a display 20 and glasses 30, which controls only the right eye by opening the right lens 32 (left lens 34) of the glasses 30 and closing the left lens 34 (right lens 32). Eye) can receive the picture. Referring to FIG. 1, it is assumed that the signal source 10 transmits a signal corresponding to each picture at a frequency of 60 Hertz (Hz) to drive the display 20. Because the signal source 10 alternately transmits the left eye picture and the right eye picture, in order to prevent the user's left eye from seeing the right eye picture and the user's right eye from seeing the left eye picture, the display 20 displays the right eye picture, the right side of the glasses 30. The lens 32 is in a light transmitting state, so that the right eye image displayed by the display 20 can reach the right eye of the user, and the left lens 34 of the glasses 30 is in an opaque state to prevent the right eye image displayed by the display 20 from reaching. The user's left eye; while the display 20 displays the left eye picture, the left lens 34 of the glasses 30 is in a light transmitting state, so that the left eye picture displayed by the display 20 can reach the user's left eye, at this time, the glasses 30 The right lens 32 is opaque to prevent the left eye image displayed by the display 20 from reaching the user's right eye. In other words, for the left eye or the right eye of the user, only half of the screen (left eye screen or right eye screen) displayed by the display 20 can be seen, which corresponds to the display 20 being displayed only at a frequency of 30 Hz. . However, such a low display frequency will make the user feel the flicker of the picture. In order to solve the problem of flickering of the screen, the signal source 10 must transmit the signal corresponding to each picture at a frequency above 100 Hz to drive the display 20 so that the user's left and right eyes can view the 50 Hz picture. The frequency has exceeded the upper limit of the frequency that the human eye can recognize without feeling the flicker.

Assume that the signal corresponding to each picture includes 1920*1080 resolution data, and contains 100 clocks of horizontal sync data and 560 clocks of vertical sync data, and each signal is transmitted at a frequency of 120 Hz. At this time, the required transmission bandwidth between the signal source 10 and the display 20 will be 2020*1640*120, which is about 400 MHz, far exceeding the 330 MHz provided by the dual-link digital video interface (Dual link DVI). Therefore, either the single-link digital video interface (Single link DVI) that provides a transmission bandwidth of 165 MHz or the D-sub interface that provides 210 MHz is not suitable for the aforementioned data transmission. In other words, such a stereoscopic image driving method has high requirements for a signal source and a transmission interface. In combination with these factors, the conventional stereoscopic display and its driving method still have problems such as high equipment requirements and high price, and it is difficult to be generally accepted by consumers.

The invention provides a driving method, which can solve the problem that the conventional driving method has too high requirements for the signal source and the transmission interface.

The invention further provides a display device, which does not need to be matched with a high-standard signal source and a transmission interface.

The driving method of the present invention includes the following steps. Receiving a first pre-signal, a second pre-signal, a first post-signal and a second post-signal input by the signal source at a first frequency. The first pre-signal, the second pre-signal, the first intermediate signal, the second intermediate signal, the first post-signal and the second post-signal are sequentially displayed on a display unit at a second frequency. The first pre-signal and the second pre-signal are used to form a first stereoscopic picture. The first medium signal and the second medium signal are used to form a second stereo picture. The first rear signal and the second rear signal are used to form a third stereoscopic picture. The first signal is determined according to the first pre-signal or based on the first pre-signal and the first post-signal. The second signal is determined according to the second pre-signal or based on the second pre-signal and the second post-signal. The second frequency is greater than the first frequency.

In an embodiment of the driving method of the present invention, the first medium signal is the same as the first front signal, and the second medium signal is the same as the second front signal. Further, the first frequency is, for example, 60 Hz, and the second frequency is 120 Hz.

In an embodiment of the driving method of the present invention, the first intermediate signal is determined according to a motion estimation motion compensation (MEMC) signal processing method according to the first pre-signal and the first post-signal, and the second The signal is determined according to the second pre-signal and the second post-signal by the motion estimation motion compensation signal processing method. Further, the first frequency is, for example, 60 Hz, and the second frequency is 120 Hz.

In an embodiment of the driving method of the present invention, after displaying the second pre-signal on the display unit and before displaying the first intermediate signal, the first medium signal, the second intermediate signal, and the second display are sequentially displayed on the display unit. One medium signal and the second medium signal. The first intermediate signals are the same as the first preceding signals, and the second intermediate signals are the same as the second preceding signals. Further, the first frequency is, for example, 60 Hz and the second frequency is 240 Hz.

In an embodiment of the driving method of the present invention, displaying any two consecutive signals on the display unit further includes displaying a black screen on the display unit. The first signal is the same as the first signal, and the second signal is the same as the second signal. Further, the first frequency is, for example, 60 Hz and the second frequency is 240 Hz.

In an embodiment of the driving method of the present invention, after displaying the second middle signal on the display unit and before displaying the first rear signal, the third medium signal and the fourth middle signal are sequentially displayed on the display unit. , a fifth medium signal and a sixth medium signal. The first medium signal, the third medium signal and the fifth medium signal are determined according to the first pre-signal and the first post-signal by a motion estimation motion compensation signal processing method, the second medium signal, the fourth medium signal and the sixth medium The signal is determined according to the second pre-signal and the second post-signal by the motion estimation motion compensation signal processing method. Further, the first frequency is, for example, 60 Hz and the second frequency is 240 Hz.

In an embodiment of the driving method of the present invention, displaying any two consecutive signals on the display unit further includes displaying a black screen on the display unit. The first middle signal is determined according to the first pre-signal and the first post-signal by a motion estimation motion compensation signal processing method, and the second middle signal is a motion estimation motion compensation signal processing method according to the second pre-signal and the second post-signal And decided. Further, the first frequency is, for example, 60 Hz and the second frequency is 240 Hz.

In an embodiment of the driving method of the present invention, the first pre-signal, the first intermediate signal, the second pre-signal, the second intermediate signal, the first intermediate signal, the first intermediate signal, and the first display are sequentially displayed on the display unit. Second China Signal, Second China Signal, First After Signal, First After Signal, Second After Signal and Second After Signal. Further, the first frequency is, for example, 60 Hz and the second frequency is 240 Hz.

In an embodiment of the driving method of the present invention, the second frequency is n times the first frequency, wherein n is an integer value greater than or equal to 2.

The display device of the present invention includes a signal processing unit and a display unit. The signal processing unit receives a first pre-signal, a second pre-signal, a first post-signal and a second post-signal input at a first frequency, and is determined according to the first pre-signal or according to the first pre-signal The first signal is determined by the first signal, and the second signal is determined according to the second pre-signal or according to the second pre-signal and the second post-signal. The first pre-signal and the second pre-signal are used to form a first stereoscopic picture. The first medium signal and the second medium signal are used to form a second stereo picture. The first rear signal and the second rear signal are used to form a third stereoscopic picture. The display unit sequentially displays the first pre-signal, the second pre-signal, the first intermediate signal, the second intermediate signal, the first post-signal and the second post-signal at a second frequency. The second frequency is greater than the first frequency.

In an embodiment of the display device of the present invention, the first medium signal is the same as the first front signal, and the second medium signal is the same as the second front signal.

In an embodiment of the display device of the present invention, the signal processing unit determines the first intermediate signal according to the first pre-signal and the first post-signal by a motion estimation motion compensation signal processing method, and according to the second pre-signal and the The second signal determines the second signal by the motion estimation motion compensation signal processing method.

In an embodiment of the display device of the present invention, after the display unit displays the second pre-signal and before displaying the first intermediate signal, the display unit sequentially displays the first intermediate signal, the second intermediate signal, and the first intermediate signal. In the second signal, the first signal is the same as the first signal, and the second signal is the same as the second signal.

In an embodiment of the display device of the present invention, the display unit further displays a black screen between the display unit displaying any two consecutive signals, the first medium signal is the same as the first front signal, and the second medium signal is the second signal. The previous signals are the same.

In an embodiment of the display device of the present invention, after the display unit displays the second middle signal and before displaying the first rear signal, the display unit sequentially displays a third intermediate signal, a fourth intermediate signal, and a fifth. The first signal, the third signal and the fifth signal, the signal processing unit determines the first medium signal, the third medium signal and the fifth medium signal according to the first pre-signal and the first post-signal according to the motion estimation motion compensation signal processing method according to the first pre-signal and the first post-signal. The processing unit determines the second intermediate signal, the fourth intermediate signal and the sixth intermediate signal according to the motion estimation motion compensation signal processing method according to the second pre-signal and the second post-signal.

In an embodiment of the display device of the present invention, the display unit further displays a black screen between the display unit displaying any two consecutive signals, and the signal processing unit estimates the motion according to the first pre-signal and the first post-signal. The motion compensation signal processing method determines the first medium signal, and the signal processing unit determines the second medium signal according to the motion estimation motion compensation signal processing method according to the second pre-signal and the second post-signal.

In an embodiment of the display device of the present invention, the display unit sequentially displays the first pre-signal, the first pre-signal, the second pre-signal, the second pre-signal, the first intermediate signal, the first intermediate signal, and the second middle Signal, second signal, first post signal, first post signal, second post signal and second post signal.

In an embodiment of the display device of the present invention, the second frequency is n times the first frequency, wherein n is an integer value greater than or equal to 2.

Based on the above, the driving method of the present invention is to display the low frequency input signal by the display unit at a high frequency. Therefore, the driving method and the display device of the present invention have lower requirements on the signal source and the transmission interface, and can even use the existing standard signal source and transmission interface to achieve the purpose of stereoscopic display, and at the same time, the high frequency display is used to avoid the user's feeling. The picture flickers.

The above described features and advantages of the present invention will be more apparent from the following description.

2A shows a signal processing process of the driving method according to an embodiment of the present invention, FIG. 2B shows a display device driven by the driving method of FIG. 2A, and FIG. 3 shows a display sequence of the display device driven by the driving method of FIG. 2A. Referring to FIG. 2A and FIG. 2B, the driving method of the present embodiment first receives a first pre-signal S110L and a second preamble provided by a signal source 50 at a first frequency by a receiving end 102 of a display device 100. The signal S110R, a first rear signal S120L and a second rear signal S120R. The driving method of this embodiment is an example in which the stereoscopic display mode is applied. Therefore, the first pre-signal S110L and the second pre-signal S110R are used to form a stereoscopic picture. The first rear signal S120L and the second rear signal S120R are used to form another stereoscopic picture.

Then, the first pre-signal S110L, the second pre-signal S110R, the first intermediate signal S112L, the second intermediate signal S112R, and the first post-signal are sequentially displayed on a display unit 120 of the display device 100 at a second frequency. S120L and the second rear signal S120R. The order of the signals displayed by the display unit 120 is also shown in FIG. The first signal S112L is determined according to the first pre-signal S110L or is determined according to the first pre-signal S110L and the first post-signal S120L. The second signal S112R is determined according to the second pre-signal S110R or is determined according to the second pre-signal S110R and the second post-signal S120R. Therefore, the first intermediate signal S112L and the second intermediate signal S112R are also used to form a stereoscopic picture. It can be seen from the above that the signals received from the signal source 50 are processed by sorting, calculation, etc., and then transmitted to the display unit 120, and the signal processing is performed by the signal processing unit 110 of the display device 100.

The contents of the signal are additionally indicated in the boxes indicating the signals in Figures 2A and 3. The first intermediate signal S112L and the first pre-signal S110L are also labeled as "L1", that is, the first intermediate signal S112L of the present embodiment is the same as the first pre-signal S110L. Similarly, the second intermediate signal S112R and the second front signal S110R are also labeled as "R1", that is, the second intermediate signal S112R of the embodiment is the same as the second previous signal S110R. However, the driving method of the present invention is not limited thereto, and several variations of the driving method of the present invention will be exemplified later by other embodiments.

It should be noted that in the driving method of this embodiment, the second frequency is greater than the first frequency. That is, the signal source 50 can provide signals at a lower frequency, and after the signals are sent to the display device 100, the signals are re-arranged by the signal processing unit 110 of the display device 100, even based on the signals before and after. The intermediate signal can be inserted and displayed by the display unit 120 of the display device 100 at a higher frequency. Therefore, when the driving method of the embodiment is used, the signal source 50 and the connection signal source 50 and the transmission interface of the display device 100 do not need to have a high specification to transmit high frequency signals. Thereby, not only the expensive cost required for improving the specification of the signal source 50 but also the user's willingness to use the high-standard display device 100 to experience the stereoscopic display effect can be improved. For example, in order to prevent the user from feeling the flicker of the picture while viewing the stereoscopic picture, the display device 100 can display at a second frequency of 120 Hz, and the signal source 50 only needs to provide the signal at a first frequency of 60 Hz. Of course, the second frequency can also be 100 Hz or other frequencies, and the first frequency can also be adjusted accordingly. In terms of the output frequency of 60 Hz, the common source of signals such as computers and CD players and the corresponding transmission interface can be achieved, and the user can experience the stereoscopic display effect without upgrading the signal source and the transmission interface. It will contribute to the popularization of stereoscopic display devices.

In addition, the driving method of this embodiment may require an appropriate number of buffers when executed, and the number and arrangement of the buffers are well known to those skilled in the art, and thus are not described herein. In addition, in FIG. 3, two successively displayed signals are also shown after the first rear signal S120L and the second rear signal S120R, to indicate that the driving method of the embodiment can be used to continuously repeat.

4 shows a signal processing procedure of a driving method according to another embodiment of the present invention, and FIG. 5 shows a display sequence of a display device driven by the driving method of FIG. Referring to FIG. 4 and FIG. 5, the driving method of the present embodiment is similar to the driving method of FIG. 2A. The difference is that the first signal S212L of the embodiment is estimated by a motion according to the first pre-signal S110L and the first post-signal S120L. The motion compensation signal processing method determines that the second intermediate signal S212R is determined according to the second pre-signal S110R and the second post-signal S120R by the motion estimation motion compensation signal processing method. The motion estimation motion compensation signal processing method can be completed by the signal processing unit 110 of FIG. 2B.

Fig. 6 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention. Referring to FIG. 6 , the driving method of the embodiment is similar to the driving method of FIG. 2A . The difference is that the display unit of the embodiment sequentially displays the first pre-signal S110L, the second pre-signal S110R, the first intermediate signal S112L, and the second. The middle signal S112R, the first medium signal S112L, the second medium signal S112R, the first medium signal S112L, the second medium signal S112R, the first rear signal S120L and the second rear signal S120R. The first intermediate signal S112L is the same as the first pre-signal S110L, and the second intermediate signal S112R is the same as the second pre-signal S110R. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz. The display unit is displayed at a second frequency of 240 Hz, which means that the user feels that the screen flicker is less likely, that is, the display quality is better.

Fig. 7 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention. Referring to FIG. 7, the driving method of this embodiment is similar to the driving method of FIG. 2A. The difference is that the display unit displays between any two consecutive signals, and further displays a black screen B10. The first intermediate signal S112L is the same as the first pre-signal S110L, and the second intermediate signal S112R is the same as the second pre-signal S110R. In other words, the display unit of the present embodiment sequentially displays the first pre-signal S110L, the black screen B10, the second pre-signal S110R, the black screen B10, the first intermediate signal S112L, the black screen B10, the second intermediate signal S112R, and the black screen B10. The first rear signal S120L, the black screen B10, the second rear signal S120R, and the black screen B10. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz. Inserting a black picture B10 between consecutive signals can reduce the possibility of interference between frames formed by different signals. For example, the left eye of the first front signal S110L can be avoided by the right eye of the user, and the left eye of the second front signal S110R can be prevented from being seen by the left eye of the user.

Fig. 8 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention. Referring to FIG. 8 , the driving method of the embodiment is similar to the driving method of FIG. 5 . The difference is that the display unit of the embodiment sequentially displays the first pre-signal S110L, the second pre-signal S110R, the first intermediate signal S212L, and the second. The middle signal S212R, the third intermediate signal S214L, the fourth intermediate signal S214R, the fifth intermediate signal S216L, the sixth intermediate signal S216R, the first rear signal S120L and the second rear signal S120R. The first intermediate signal S212L, the third intermediate signal S214L and the fifth intermediate signal S216L are determined according to the first pre-signal S110L and the first post-signal S120L by the motion estimation motion compensation signal processing method, and the second intermediate signal S212R, the fourth medium The signal S214R and the sixth intermediate signal S216R are determined according to the second pre-signal S110R and the second post-signal S120R by the motion estimation motion compensation signal processing method. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz.

Fig. 9 is a view showing a display sequence of a display device driven by a driving method according to another embodiment of the present invention. Referring to FIG. 9, the driving method of this embodiment is similar to the driving method of FIG. 5, except that the display unit displays between any two consecutive signals, and further displays a black screen B10. In other words, the display unit of the present embodiment sequentially displays the first pre-signal S110L, the black screen B10, the second pre-signal S110R, the black screen B10, the first intermediate signal S212L, the black screen B10, the second intermediate signal S212R, and the black screen B10. The first rear signal S120L, the black screen B10, the second rear signal S120R, and the black screen B10. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz. Inserting a black picture B10 between consecutive signals can reduce the possibility of interference between frames formed by different signals.

Fig. 10 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention. Referring to FIG. 10, the driving method of the embodiment is similar to the driving method of FIG. 5. The difference is that the display unit of the embodiment sequentially displays the first pre-signal S110L, the first pre-signal S110L, the second pre-signal S110R, and the second. The pre-signal S110R, the first intermediate signal S212L, the first intermediate signal S212L, the second intermediate signal S212R, the second intermediate signal S212R, the first rear signal S120L, the first rear signal S120L, the second rear signal S120R and the second rear signal S120R. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz.

Fig. 11 shows the display order of the display device driven by another driving method. Referring to FIG. 11 , the driving method is similar to the driving method of FIG. 3 . The difference is that the display unit of the embodiment sequentially displays the first pre-signal S110L, the first pre-signal S110L, the second pre-signal S110R, and the second pre-signal S110R. The first rear signal S120L, the first rear signal S120L, the second rear signal S120R and the second rear signal S120R. In this driving mode, the display unit can be displayed at a second frequency of 240 Hz, and the signal source only needs to provide a signal at a first frequency of 60 Hz.

In summary, the driving method and the display device of the present invention provide low frequency signals from the signal source, and perform signal processing to perform high frequency display by the display unit of the display device. Therefore, when the driving method and the display device of the present invention are used, the signal source and the transmission interface do not need to have a high specification, and the display device can perform high-frequency output to provide a user with better image quality. Even the existing standard signal source and transmission interface can be used for stereo display.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10. . . Signal source

20. . . monitor

30. . . glasses

32‧‧‧right lens

34‧‧‧ left lens

50‧‧‧Signal source

100‧‧‧ display device

102‧‧‧ Receiver

110‧‧‧Signal Processing Unit

120‧‧‧Display unit

S110L‧‧‧ first pre-signal

S110R‧‧‧ second pre-signal

S112L, S212L‧‧‧ first signal

S112R, S212R‧‧‧ second signal

S214L‧‧‧ Third Signal

S214R‧‧‧fourth signal

S216L‧‧‧ fifth signal

S216R‧‧‧ sixth signal

S120L‧‧‧First signal

S120R‧‧‧second signal

B10‧‧‧Black screen

1 is a schematic view of a conventional stereoscopic display.

Fig. 2A shows a signal processing procedure of a driving method according to an embodiment of the present invention.

2B is a display device driven by the driving method of FIG. 2A.

Fig. 3 is a view showing the display order of the display device driven by the driving method of Fig. 2A.

Fig. 4 is a diagram showing the signal processing procedure of the driving method according to another embodiment of the present invention.

FIG. 5 shows a display order of the display device driven by the driving method of FIG.

Fig. 6 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention.

Fig. 7 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention.

Fig. 8 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention.

Fig. 9 is a view showing a display sequence of a display device driven by a driving method according to another embodiment of the present invention.

Fig. 10 is a view showing a display sequence of a display device driven by a driving method according to still another embodiment of the present invention.

Fig. 11 shows the display order of the display device driven by another driving method.

S110L. . . First pre-signal

S110R. . . Second pre-signal

S112L. . . First signal

S112R. . . Second signal

S120L. . . First post signal

S120R. . . Second post signal

Claims (16)

A driving method includes: receiving a first pre-signal, a second pre-signal, a first post-signal, and a second post-signal input at a first frequency; and The first pre-signal, the second pre-signal, the first intermediate signal, the second second signal, the first post-signal and the second post-signal, wherein the first pre-signal and the second pre-signal are displayed The first intermediate signal and the second intermediate signal are used to form a second stereoscopic image, and the first rear signal and the second rear signal are used to form a third stereoscopic image. The first signal is determined according to the first pre-signal or is determined according to the first pre-signal and the first post-signal, and the second signal is determined according to the second pre-signal or according to the second The pre-signal and the second post-signal are determined, and the second frequency is greater than the first frequency, wherein the second frequency is n times the first frequency, where n is an integer value greater than or equal to 2. The driving method of claim 1, wherein the first intermediate signal is the same as the first previous signal, and the second intermediate signal is the same as the second previous signal. The driving method of claim 1, wherein the first intermediate signal is determined according to the first pre-signal and the first post-signal by a motion estimation motion compensation signal processing method, and the second intermediate signal is The second pre-signal and the second post-signal are determined according to the motion estimation motion compensation signal processing method. The driving method of claim 1, wherein after displaying the second pre-signal on the display unit and before displaying the first intermediate signal, the first intermediate signal is sequentially displayed on the display unit. The second intermediate signal, the first intermediate signal and the second intermediate signal, the first intermediate signals are the same as the first front signal, and the second intermediate signals are the same as the second front signal. The driving method of claim 1, wherein displaying any two consecutive signals on the display unit further comprises displaying a black screen on the display unit, the first medium signal and the first The first signal is the same as the second signal. The driving method of claim 1, wherein displaying the second intermediate signal after displaying the second intermediate signal on the display unit and displaying the first rear signal further comprises sequentially displaying a third intermediate signal on the display unit. a first intermediate signal, a fifth intermediate signal and a sixth intermediate signal, wherein the first intermediate signal, the third intermediate signal and the fifth intermediate signal are based on the first pre-signal and the first post-signal Determining, by the motion estimation motion compensation signal processing method, the second intermediate signal, the fourth intermediate signal, and the sixth intermediate signal are based on the second pre-signal and the second post-signal to estimate the motion compensation signal processing method according to the motion And decided. The driving method of claim 1, wherein displaying any two consecutive consecutive signals on the display unit further comprises displaying a black screen on the display unit, wherein the first medium signal is according to the The first pre-signal and the first post-signal are determined by a motion estimation motion compensation signal processing method, and the second middle signal is based on the second pre-signal and the second post-signal It is determined by the motion estimation motion compensation signal processing method. The driving method of claim 1, wherein the first pre-signal, the first pre-signal, the second pre-signal, the second pre-signal, the first middle are sequentially displayed on the display unit. The signal, the first medium signal, the second medium signal, the second medium signal, the first rear signal, the first rear signal, the second rear signal and the second rear signal. A display device includes: a signal processing unit that receives a first pre-signal, a second pre-signal, a first post-signal, and a second post-signal input at a first frequency, according to the first pre-signal Determining or determining a first medium signal based on the first pre-signal and the first post-signal, and determining or according to the second pre-signal and the second post-signal according to the second pre-signal In the second signal, the first pre-signal and the second pre-signal are used to form a first stereoscopic image, and the first intermediate signal and the second intermediate signal are used to form a second stereoscopic image, the first post-signal And the second rear signal is used to form a third stereoscopic image; and a display unit sequentially displays the first pre-signal, the second pre-signal, the first intermediate signal, and the second middle at a second frequency a signal, the first post-signal and the second post-signal, wherein the second frequency is greater than the first frequency, wherein the second frequency is n times the first frequency, where n is an integer value greater than or equal to 2. The display device of claim 9, wherein the first intermediate signal is the same as the first previous signal, and the second intermediate signal is the same as the second previous signal. The display device of claim 9, wherein the signal processing unit determines the first intermediate signal according to the first pre-signal and the first post-signal by a motion estimation motion compensation signal processing method, and according to The second pre-signal and the second post-signal determine the second intermediate signal by using the motion estimation motion compensation signal processing method. The display device of claim 9, wherein the display unit displays the first intermediate signal and the second in sequence after the display unit displays the second pre-signal and before displaying the first intermediate signal. The first signal and the second signal, the first signal is the same as the first signal, and the second signal is the same as the second signal. The display device of claim 9, wherein the display unit further displays a black screen between the two consecutive signals, wherein the first intermediate signal is the same as the first previous signal. The second medium signal is the same as the second front signal. The display device of claim 9, wherein the display unit displays a third medium signal and a fourth sequence sequentially after the display unit displays the second medium signal and before displaying the first rear signal. The first signal, the fifth signal and the sixth signal, the signal processing unit determines the first signal according to the first pre-signal and the first post signal by a motion estimation motion compensation signal processing method, The third intermediate signal and the fifth intermediate signal, the signal processing unit determines the second intermediate signal and the fourth intermediate signal according to the second pre-signal and the second post-signal according to the motion estimation motion compensation signal processing method With the sixth signal. The display device of claim 9, wherein the The display unit displays between any of the consecutive consecutive signals, the display unit further displays a black screen, and the signal processing unit determines that the first pre-signal and the first post-signal are processed by a motion estimation motion compensation signal according to the first pre-signal and the first post-signal. The first intermediate signal, the signal processing unit determines the second intermediate signal according to the second pre-signal and the second post-signal based on the motion estimation motion compensation signal processing method. The display device of claim 9, wherein the display unit sequentially displays the first pre-signal, the first pre-signal, the second pre-signal, the second pre-signal, the first intermediate signal, The first intermediate signal, the second intermediate signal, the second intermediate signal, the first rear signal, the first rear signal, the second rear signal and the second rear signal.