Patent Application
20110102473
This application claims the priority benefit of Taiwan application serial no. 98136686, filed Oct. 29, 2009. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.
1. Field of the Invention
The invention relates to a display apparatus and a driving method thereof, and more particularly to a color sequential display apparatus and a driving method thereof
2. Description of Related Art
In recent years, flat panel displays are developed rapidly owing to mature optical-electric technology and semiconductor manufacturing technology. Liquid crystal displays (LCDs) advantageous in high space-utilization efficiency, low power consumption, free radiation, and lower electromagnetic interference have gradually become a mainstream in the market. The LCD mainly includes an LCD panel and a backlight module. As the LCD panel is not self-luminescent, the backlight module must be disposed under the LCD panel to provide a surface light source required by the LCD panel, so that the LCD can display images.
The principle of providing a surface light source to the LCD panel from the backlight module of the traditional LCD is as follows. Generally, a white light is first provided, and the white light then passes through color filters inside the LCD panel to display the desired color. However, the fabrication of the color filters is time-consuming and costly, and the brightness of the white light decreases greatly after passing through the color filters. In order to maintain certain brightness, the backlight brightness must be enhanced and the power consumption must be increased.
The invention is directed to a color sequential display apparatus and a driving method thereof. The invention is advantageous in providing superior display image, saving costs, and reducing complexity in transmission interface.
The invention is directed to a color sequential display apparatus including an image processing circuit and a display panel. The display panel is coupled to the image processing circuit. The image processing circuit receives an image signal of a color frame to generate output signals of a plurality of fields. The image signal of the color frame is categorized and segmented by the image processing circuit according to a color information and the fields to generate the output signals of the fields. The output signals of the fields are further transmitted by the image processing circuit according to a predetermined color sequence. On the other hand, the display panel has a plurality of display regions, wherein each of the display regions receives the output signal of the corresponding field to display.
The invention is directed to a driving method of a color sequential display apparatus, in which the driving method includes the following. An image processing circuit is provided to receive an image signal of a color frame to generate output signals of a plurality of fields. The image signal of the color frame is categorized and segmented by the image processing circuit according to a color information and the fields to generate the output signals of the fields. The output signals of the fields are further transmitted by the image processing circuit according to a predetermined color sequence. A display panel is provided. The display panel is coupled to the image processing circuit and has a plurality of display regions. Each of the display regions receives the output signal of the corresponding field to display.
In one embodiment of the color sequential display apparatus and the driving method thereof in the invention, the image processing circuit includes a sorting unit and a segmentation unit. The segmentation unit is coupled between the sorting unit and the display panel. The sorting unit categorizes the image signal of the color frame into image signals of a plurality of single-color fields and sorts the same according to the color information. The segmentation unit segments the display regions corresponding to the image signals of each of the single-color fields according to the color information and the fields so as to generate the output signals of the fields. In one embodiment, the single-color fields include a first color field and a second color field. The segmentation unit segments the image signal of the first color field to generate a part of the output signals of the fields corresponding to the display regions. Moreover, the segmentation unit segments the image signals of the second color field to generate another part of the output signals of the fields corresponding to the display regions. In one embodiment, the single-color fields further include a third color field. The segmentation unit segments the image signals of the third color field to generate further another part of the output signals of the fields corresponding to the display regions. In one embodiment, the image processing circuit further includes a frame memory coupled to the sorting unit and configured to store the image signals of the sorted single-color fields temporarily. In another embodiment, the image processing circuit further includes a shift unit coupled between the segmentation unit and the display panel.
In one embodiment of the color sequential display apparatus and the driving method thereof in the invention, the image processing circuit includes a sorting unit and a segmentation unit. The segmentation unit is coupled between the sorting unit and the display panel. The segmentation unit segments the image signal of the color frame into image signals of a plurality of color fields according to the color information and the fields. The color fields correspond to the display regions respectively. The sorting unit categorizes and sorts the image signals of each of the color fields so as to generate the output signals of the fields. In one embodiment, the sorting unit categorizes and sorts the image signals of one of the color fields to generate a part of the output signals of the fields. The sorting unit further categorizes and sorts the image signals of another one of the color fields to generate another part of the output signals of the fields. In one embodiment, the sorting unit categorizes and sorts the image signals of further another one of the color fields to generate further another part of the output signals of the fields. In one embodiment, the image processing circuit further includes a frame memory coupled to the sorting unit and configured to store the output signals of the sorted fields temporarily. In another embodiment, the image processing circuit further includes a shift unit coupled between the sorting unit and the display panel.
In one embodiment of the color sequential display apparatus and the driving method thereof in the invention, the image processing circuit includes a timing control circuit coupled to the display panel. The timing control circuit is configured to output the output signals of the fields generated by the image processing circuit to the display panel.
In one embodiment of the color sequential display apparatus and the driving method thereof in the invention, the color sequential display apparatus further includes a backlight module. The backlight module turns on a corresponding backlight source according to the predetermined color sequence. In one embodiment, the image processing circuit includes a timing control circuit coupled to the backlight module and the display panel. The timing control circuit is configured to output the output signals of the fields generated by the image processing circuit to the display panel. The timing control circuit is also configured to control the backlight module to turn on the backlight source corresponding to the output signals of the fields outputted by the image processing circuit.
In one embodiment of the color sequential display apparatus and a driving method thereof, the predetermined color sequence is “red-green-blue”, “red-green-blue-green”, “red-green-blue-white”, “red-green-blue-white-yellow”, or “red-green-blue-cyan-yellow-magenta”.
In light of the foregoing, the image processing circuit in the color sequential display apparatus of the invention is capable of sorting, segmenting, and transmitting the received image signals of the color frames according to the color information and the predetermined color sequence. Therefore, the color sequential display apparatus of the invention simplifies the complexity of the transmission interface to provide superior display image for reducing power consumption so as to reduce costs.
In order to make the aforementioned and other features and advantages of the present invention more comprehensible, several 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.
FIGS. 1A and 1A′ are schematic block diagrams illustrating two color sequential display apparatuses in a first embodiment of the invention.
FIGS. 2 and 2′ are schematic block diagrams illustrating two color sequential display apparatuses in a second embodiment of the invention.
FIGS. 5 and 5′ are schematic block diagrams illustrating two color sequential display apparatuses in a fifth embodiment of the invention.
However, the division of the display panel 120 into four display regions and an arrangement of the sub-display panels 120a, 120b, 120c, and 120d in the present embodiment are merely exemplary, and the invention is not limited thereto. For example, the sub-display panels 120a, 120b, 120c, and 120d are also arranged as those shown in display panels 120L and 120M in
The color sequential display apparatus 100 further includes a backlight module 130 and a driving device 140 (i.e. a gate driver, a source driver, etc.). The backlight module 130 provides a light source required by the display panel 120. The driving device 140 electrically connects to the display panel 120. In practical use, the display image of each of the sub-display panels 120a, 120b, 120c, and 120d is controlled by a set of driving devices (i.e. a gate driver and a source driver) and a timing control circuit. Also, the same timing control circuit can be used to control each of the sub-display panels 120a, 120b, 120c, and 120d. Obviously, the color sequential display apparatus 100 further includes other components. In the present embodiment, only relevant components are illustrated in the following.
In the backlight module 130, the corresponding backlight source is turned on according to a predetermined color sequence so as to provide a desirable colored light at a desirable time point. In details, the predetermined color sequence of the present embodiment is adopted as a lighting color sequence when lighting the backlight source. For example, when the predetermined color sequence is “R (red)-G (green)-B (blue)”, the backlight source is lighted in a sequence of “red backlight→green backlight→blue backlight”. Alternatively, the predetermined color sequence can also adopt modes such as “R-G-B-G”, “R-G-B-W (white)”, “R-G-B-W-Y (yellow)”, “R-G-B-C-Y-M (magenta)”, and so on. The predetermined color sequence can also be other modes, and is not described in details here.
In the present embodiment, the color image a user sees on the display panel 120 is actually assembled by color images respectively displayed by the sub-display panels 120a, 120b, 120c, and 120d. Thus, each color image to be displayed must be divided into four sub-display images. The four sub-display images are then combined to represent a visual effect of a complete color image. For the simplicity of illustration, the color image to be displayed is referred as a color frame in the following.
In the present embodiment, the image processing circuit 110 first receives an image signal of a color frame. The image signal of the color frame is generated through a personal computer (PC) system 150 disposed outside of the image processing circuit 110, as shown in
In the present embodiment, the PC system 150 is constituted of components such as a central processing unit (CPU) 152, a chipset 154, and a graphics system 156. However, the invention is not limited thereto.
It should be noted that the image signals of the present embodiment includes a control signal, a scanning signal required by the display panel 120 when displaying, an image synchronization signal, a data signal, and the like. The present embodiment mainly illustrates the data signal, and the type of the image signals in the invention, however, is not limited herein. The image processing circuit 110 then categorizes and segments the image signal of the color frame to generate output signals of a plurality of fields (to be illustrated later). Next, the display panel 120 displays the color image to be displayed, that is, the color frame, by receiving the output signals of the fields.
Specifically, as shown in
When the predetermined color sequence (the lighting sequence) adopted by the color sequential display apparatus 100 is “R-G-B”, the color information thereof is then “red, green, and blue”. Therefore, the sorting unit 112 is capable of sorting the image signal of the color frame into image signals of a plurality of single-color fields according to this color information “red, green, and blue”. That is, the image signal of the color frame is sorted to be an image signal SR of a red field, an image signal SG of a green field, and an image signal SB of a blue field. Additionally, the sorting unit 112 further sorts the image signals of the single color fields into “the image signal SR of the red field→the image signal SG of the green field→the image signal SB of the blue field”.
Generally, a frame memory 118 coupled to the sorting unit 112 is usually disposed in the image processing circuit 110. Here, the frame memory 118 is configured to store the image signals SR, SG, and SB of the sorted red field, green field, and blue field. In practical use, one or more synchronous dynamic random access memory (SDRAM) is adopted as the frame memory 118. However, the invention is not limited thereto.
Thereafter, the segmentation unit 114 further segments the image signals SR, SG, and SB of the red field, green field, and blue field. In the present embodiment, the sub-display panels 120a, 120b, 120c, and 120d respectively display the upper left portion, the bottom left portion, the bottom right portion, and the upper right portion of the color frame. Thus, each single-color field (red, green, blue field) has to be segmented into four parts of upper left, bottom left, bottom right, and upper right. The segmented field signals (to be illustrated later) are then transmitted to the sub-display panels 120a, 120b, 120c, and 120d respectively.
More specifically, the segmentation unit 114 segments the image signal SR of the red field into output signals SRa, SRb, SRc, and SRd of four fields. Furthermore, the image signal SG of the green field is segmented into output signals SGa, SGb, SGc, and SGd of four fields. The image signal SB of the blue field is segmented into output signals SBa, SBb, SBc, and SBd of four fields. Herein, the output signals SRa, SGa, and SBa of the fields are transmitted to the sub-display panel 120a sequentially. The output signals SRb, SGb, and SBb of the fields are transmitted to the sub-display panel 120b sequentially. The output signals SRc, SGc, and SBc of the fields are transmitted to the sub-display panel 120c sequentially. Finally, the output signals SRd, SGd, and SBd of the fields are transmitted to the sub-display panel 120d sequentially. In the present embodiment, the output signals SRa, SGa, SBa, SRb, SGb, SBb, SRc, SBc, SBc, SRd, SGd, and SBd of the fields are outputted to the display panel 120 through the timing control circuit 116.
Accordingly, in the present embodiment, after the image processing circuit 110 receives any one of the color frames, the sorting unit 112 and the segmentation unit 114 then sort and segment the color frame to generate the output signals SRa, SGa, SBa, SRb, SGb, SBb, SRc, SGc, SBc, SRd, SBd, SBd of the fields required by the display panel 120. Obviously, when the color image is to be display continuously, the image processing circuit 110 has to receive image signals of a plurality of color frames sequentially. For example, the image signals of the color frames are received with a frame rate of 60 Hz. Afterwards, the image processing circuit 110 sequentially sorts and segments the image signals of the color frames, wherein the image signals are then transmitted to the display panel 120. Here, the output signals (i.e. SRa, SGa, or SBa) of 60 single-color fields are outputted to the display panel 120 every second, for example. That is, the field rate is 180 Hz.
It should be noted that in the aforementioned embodiment, the image signals SR, SG, and SB of the red, green, and blue fields are respectively S(Ra, Rb, Rc, Rd), S(Ga, Gb, Gc, Gd), and S(Ba, Bb, Bc, Bd). Moreover, the corresponding color sequences respectively received by the sub-display panels 120a, 120b, 120c, and 120d are the same. That is, the color sequences are all red green-4 blue, for example.
However, in other embodiments, the image signals of the red, green, and blue fields are respectively S(Ra, Gb, Bc, Rd), S(Ga, Bb, Rc, Gd), and S(Ba, Rb, Gc, Bd). Also, the corresponding color sequences respectively received by the sub-display panels 120a, 120b, 120c, and 120d can be different. For example, referring to the schematic block diagram shown in FIG. 1A′, the corresponding color sequence of the signal received by the sub-display panel 120a is red→green→blue (that is, SRa→SGa→SBa). In addition, the corresponding color sequence of the signal received by the sub-display panel 120b is green→blue→red (that is, SGb→SBb→SRb). The corresponding color sequence of the signal received by the sub-display panel 120c is blue→red→green (that is, SBc→SRc→SGc). The corresponding color sequence of the signal received by the sub-display panel 120d is red→green→blue (that is, SRd→SGd→SBd).
Accordingly, the design of the color sequential display apparatus is also illustrated in the following embodiments. For the convenience of illustration, most of the predetermined color sequences adopted in the following embodiments are “R-G-B”, so the color information is “red, green, and blue”. However, the invention is not limited herein.
The concept to be illustrated in the present embodiment is similar to that of the first embodiment. The main difference between the two is that, in the present embodiment, a shift unit 210S is further disposed in an image processing circuit 210 as shown in a color sequential display apparatus 200 of
As shown in
In the present embodiment, the shift unit 210S is coupled between the segmentation unit 114 and display panel 120. The shift unit 210S receives the output signals SRa, SGa, SBa, SRb, SGb, SBb, SRc, SGc, SBc, SRd, SGd, SBd of the fields outputted by the segmentation unit 114, and then performs the image shift to generate output signals S′Ra, S′Ga, S′Ba, S′Rb, S′Gb, S′Bb, S′Rc, S′Gc, S′Bc, S′Rd, S′Gd, S′Bd of the fields. The output signals S′Ra, S′Ga, S′Ba, S′Rb, S′Gb, S′Bb, S′Rc, S′Gc, S′Bc, S′Rd, S′Gd, S′Bd of the fields are then transmitted to the display panel 120. Here, the sub-display panel 120a received the output signals S′Ra, S′Ga, and S′Ba of the fields, the sub-display panel 120b receives the output signals S′Rb, S′Gb, and S′Bb of the fields, the sub-display panel 120c receives the output signals S′Rc, S′Gc, and S′Bc of the fields, and the sub-display panels 120d receives the output signals S′Rd, S′Gd, S′Bd of the fields.
Practically, the shift unit 2105 couples to a look up table (LUT) which is configured to shift signals, so as to shift images. The details of the color sequential display apparatus 200 of the present embodiment can refer to the first embodiment, and the description is thus omitted herein.
It should be noted that in the present embodiment, the image signals SR, SG, and SB of the red, green, and blue fields are transmitted in the sequence of S(Ra, Rb, Rc, Rd), S(Ga, Gb, Gc, Gd), and S(Ba, Bb, Bc, Bd). Moreover, the corresponding color sequences (i.e. red→green→blue) respectively received by the sub-display panels 120a, 120b, 120c, and 120d are all the same.
However, in other embodiments, the image signals of the red, green, and blue fields are transmitted in the sequence of S(Ra, Gb, Bc, Rd), S(Ga, Bb, Rc, Gd), and S(Ba, Rb, Gc, Bd).
Accordingly, the corresponding color sequences respectively received by the sub-display panels 120a, 120b, 120c, and 120d can be different. For example, referring to the schematic block diagram shown in FIG. 2′, the corresponding color sequence of the signal received by the sub-display panel 120a is red→green→blue (that is, S′Ra→′SGa→′SBa). In addition, the corresponding color sequence of the signal received by the sub-display panel 120b is green→blue→red (that is, S′Gb→S′BbS→Rb). The corresponding color sequence of the signal received by the sub-display panel 120c is blue→red→green (that is, S′Bc→S′Rc→S′Gc). The corresponding color sequence of the signal received by the sub-display panel 120d is red→green→blue (that is, S′Rd→S′Gd→S′Bd).
The concept to be illustrated in the present embodiment is similar to that of the first embodiment. The main difference between the two is that, in a color sequential display apparatus 300 of the present embodiment, a sorting unit 312 is coupled between the segmentation unit 314 and the display panel 120 as shown in
In the present embodiment, after an image processing circuit 310 receives an image signal of any one of the color frames, the segmentation unit 314 first segments the image signal of the color frame into image signals (to be described later) of a plurality of color fields. Thereafter, the sorting unit 312 categorizes and sorts the image signals of the color fields.
In details, the color image displayed by the display panel 120 of the present embodiment is actually assembled by the color images respectively displayed by the sub-display panels 120a, 120b, 120c, and 120d. The segmentation unit 314 then segments the image signal of the color frame into the image signals Sca, Scb, Scc, and Scd of the four color fields corresponding to the sub-display panels 120a, 120b, 120c, and 120d.
In the present embodiment, when the predetermined color sequence (the lighting sequence) adopted by the color sequential display apparatus 300 is “R-G-B”, the color information thereof is “red, green, and blue”. The predetermined color sequence and the color information can also be other modes, and is not described in details here.
The sorting unit 312 categorizes the image signals Sca, Scb, Scc, and Scd of the color fields into output signals of a plurality of fields according to the color information “red, green, and blue”. In other words, the sorting unit 312 categorizes the image signal Sca of the color field to represent the output signals SRa, SGa, and SBa of the red, green, and blue fields respectively, the image signal Scb of the color field to represent the output signals SRb, SGb, and SBb of the red, green, and blue fields respectively, the image signal Scc of the color field to represent the output signals SRc, SGc, and SBc of the red, green, and blue fields respectively, and the image signal Scd of the color field to represent the output signals SRd, SGd, and SBd of the red, green, and blue fields respectively.
Furthermore, the sorting unit 312 further sorts the output signals of the fields mentioned above into “SRa→SGa→SBa”, “SRb→SGb→SBb”, “SRc→SGc→SBc”, and “SRd→SGd→SBd”. In practice, a frame memory 118 coupled to the sorting unit 312 is usually disposed in the image processing circuit 310. Here, the frame memory 118 is configured to store the output signals “SRa→SGa→SBa”, “SRb→SGb→SBb”, “SRc→SGc→SBc”, and “SRd→SGd→SBd” of the sorted fields temporarily
Consequently, the output signals SRa, SGa, and SBa of the fields are transmitted to the sub-display panel 120a sequentially. The output signals SRb, SGb, and SBb of the fields are transmitted to the sub-display panel 120b sequentially. The output signals SRc, SGc, and SBc of the fields are transmitted to the sub-display panel 120c sequentially. Finally, the output signals SRd, SGd, and SBd of the fields are transmitted to the sub-display panel 120d sequentially. In the present embodiment, the output signals SRa, SGa, SBa, SRb, SGb, SBb, SRc, SGc, SBc, SRd, SGd, SBd of the fields are outputted to the display panel 120 through the timing control circuit 116 coupled between the sorting unit 312 and the display panel 120.
However, in other embodiments, a shift unit 3105 is further disposed in an image processing circuit 310a, as shown in a color sequential display apparatus 300a of
Nevertheless, the details of the color sequential display apparatuses 300, 300a can refer to the first and the second embodiments, and the description is thus omitted herein.
Notably, in the present embodiment, the corresponding color sequences (i.e. red→green→blue) of the signals received by the sub-display panels 120a, 120b, 120c, and 120d respectively are all the same. In other embodiments, the corresponding color sequences of the signals received by the sub-display panels 120a, 120b, 120c, and 120d respectively can be all different.
For example, referring to the schematic block diagrams shown in FIG. 3′ and FIG. 3A′, the corresponding color sequence of the signal received by the sub-display panel 120a is red→green→blue (that is, SRa→SGa→SBa in FIG. 3′ and S′Ra→S′Ga→S′Ba in
The concept to be illustrated in a color sequential display apparatus 400a (shown in
In the present embodiment, the display panel 420 has four display regions 422, 424, 426 and 428. The display regions 422, 424, 426, and 428 display the upper left portion, the bottom left portion, the bottom right portion, and the upper right portion of the color frame (the color image to be displayed) respectively. Obviously, the invention does not limit the display panel to be divided into four portions, and the number of division is determined upon actual requirements.
In an image processing circuit 410a, a segmentation unit 414a is coupled between the sorting unit 412a and the display panel 420. The image processing circuit 410a receives the image signal of each of the color frames, and categorizes and segments the same to generate the output signals SRa, SGa, SBa, SRb, SGb, SBb, SRc, SGc, SBc, SRd, SGd, SBd of a plurality of fields. The output signals SRa, Sea, SBa, SRb, SGb, SBb, SRc, SGc, SBc, SRd, SGd, SBd are then transmitted to a display panel 420. The display region 422 receives the output signals SRa, SGa, SBa of the fields. The display region 424 receives the output signals SRb, SGb, SBb of the fields. The display region 426 receives the output signals SRc, SGc, SBc of the fields. Moreover, the display region 428 receives the output signals SRd, SGd, SBd of the fields. The details of the color sequential display apparatus 400a of the present embodiment can refer to the first embodiment, and the description is thus omitted herein.
It should be noted that in other embodiments, positions of the sorting unit and the segmentation unit in
It should be noted that in the present embodiment, the image signals SR, SG, and SB of the red, green, and blue fields are respectively S(Ra, Rb, Rc, Rd), S(Ga, Gb, Gc, Gd), and S(Ba, Bb, Bc, Bd). Moreover, the corresponding color sequences (i.e. red→green→blue) respectively received by the display regions 422, 424, 426, and 428 are all the same.
However, in other embodiments, the image signals of the red, green, and blue fields are respectively S(Ra, Gb, Bc, Rd), S(Ga, Bb, Rc, Gd), and S(Ba, Rb, Gc, Bd). Additionally, the corresponding color sequences respectively received by the display regions 422, 424, 426, and 428 can be different. For example, referring to the schematic block diagrams shown in FIGS. 4A′ and 4B′, the corresponding color sequence of the signal received by the display region 422 is red→green→blue (that is, SRa→SGa→SBa in FIGS. 4A′ and 4B′). In addition, the corresponding color sequence of the signal received by the display region 424 is green→blue→red (that is, SGb→SBb→SRb in FIGS. 4A′ and 4B′). The corresponding color sequence of the signal received by the display region 426 is blue→red→green (that is, SBc→SRc→SGc in FIGS. 4A′ and 4B). The corresponding color sequence of the signal received by the display region 428 is red→green- blue (that is, SRd→SGd→SBd in FIGS. 4A′ and 4B′).
The concept to be illustrated in the present embodiment is similar to that of the first embodiment. The main difference between the two is that, in the present embodiment, as depicted in a color sequential display apparatus 500 of
Referring to
The framework of the image processing circuit 510 of the present embodiment can be the image processing circuit 110 in
Notably, in the present embodiment, the corresponding color sequences (i.e. red→green→blue) of the signals received by the sub-display panels 120a, 120b, 120c, and 120d respectively are all the same. In other embodiments, the corresponding color sequences of the signals received by the sub-display panels 120a, 120b, 120c, and 120d respectively can be all different.
For instance, referring to the schematic block diagram shown in FIG. 5′, the corresponding color sequence of the signal received by the sub-display panel 120a is red→green→blue (that is, SRa→SGa→SBa in FIG. 5′). In addition, the corresponding color sequence of the signal received by the sub-display panel 120b is green→blue→red (that is, SGb→SBb→SRb in
In the present embodiment, a plurality of sub-display panels in the fifth embodiment are integrated into a display panel 420. The display panel 420 has a plurality of display regions (to be described later) as color sequential display apparatuses 600A and 600B respectively illustrated in
In the present embodiment, the display panel 420, for example, has four display regions 422, 424, 426, and 428. Obviously, the invention does not limit the display panel to be divided into four portions, and the number of division is determined upon actual requirements.
An image processing circuit 610 of the present embodiment is disposed in a graphics system 656 of a PC system 650. The image processing circuit 610 shares the memory inside the graphics system 656. The framework of the image processing circuit 610 can be the image processing circuit 110 in
Notably, in the present embodiment, the corresponding color sequences (i.e. red→green→blue) of the signals received by the display regions 422, 424, 426, and 428 respectively are all the same. In other embodiments, the corresponding color sequences of the signals received by the display regions 422, 424, 426, and 428 respectively can be all different.
For example, referring to the schematic block diagrams shown in FIGS. 6A′ and 6B′, the corresponding color sequence of the signal received by the display region 422 is red→green→blue (that is, SRa→SGa→SBa in FIGS. 6A′ and 6B′). In addition, the corresponding color sequence of the signal received by the display region 424 is green→blue→red (that is, SGb→SBb→SRb in FIGS. 6A′ and 6B). The corresponding color sequence of the signal received by the display region 426 is blue→red→green (that is, SBc→SRc→SGc in FIGS. 6A′ and 6B′). The corresponding color sequence of the signal received by the display region 428 is red- green→blue (that is, SRd→SGd→SBd in FIGS. 6A′ and 6B′).
In the present embodiment, as shown in a color sequential display apparatus 700a of
As aforementioned, an image processing circuit 710a of the present embodiment includes a plurality of components. A sorting unit 712a is disposed in a graphics system 756a of a PC system 750a. The segmentation unit 714a and the timing control circuit 116 are disposed outside of the PC system 750a.
It should be noted that in other embodiments, the sorting unit and the segmentation unit in
Obviously, other components, such as the shift unit (not shown) for shifting images, can be further disposed in the abovementioned image processing circuits 710a, 710b respectively. These components are disposed inside or outside of the PC systems 750a, 750b according to requirements of the product. The details of the image processing circuits 710a, 710b can refer to the fifth embodiment, and the description is thus omitted herein.
It should be noted that in the present embodiment, the image signals SR, SG, and SB of the red, green, and blue fields are respectively S(Ra, Rb, Rc, Rd), S(Ga, Gb, Gc, Gd), and S(Ba, Bb, Bc, Bd). Moreover, the corresponding color sequences (i.e. red→green→blue) respectively received by the sub-display panels 120a, 120b, 120c, and 120d are all the same.
However, in other embodiments, the image signals of the red, green, and blue fields are respectively S(Ra, Gb, Bc, Rd), S(Ga, Bb, Rc, Gd), and S(Ba, Rb, Gc, Bd). Also, the corresponding color sequences respectively received by the sub-display panels 120a, 120b, 120c, and 120d can be different. For instance, referring to the schematic block diagrams shown in FIGS. 7A′ and 7B′, the corresponding color sequence of the signal received by the sub-display panel 120a is red→green→blue (that is, SRa→SGa→SBa in FIGS. 7A′ and 7B′). In addition, the corresponding color sequence of the signal received by the sub-display panel 120b is green→blue→red (that is, SGb→SBb→SRb in FIGS. 7A′ and 7B′). The corresponding color sequence of the signal received by the sub-display panel 120c is blue→red→green (that is, SBc→SRc→SGc in FIGS. 7A′ and 7B′). The corresponding color sequence of the signal received by the sub-display panel 120d is red→green→blue (that is, SRd→SGd→SBd in FIGS. 7A′ and 7B′).
In the present embodiment, as color sequential display apparatuses depicted in
It should be noted that in the present embodiment, the image signals SR, SG, and SB of the red, green, and blue fields are respectively S(Ra, Rb, Rc, Rd), S(Ga, Gb, Gc, Gd), and S(Ba, Bb, Bc, Bd). Moreover, the corresponding color sequences (i.e. red→green→blue) respectively received by the display regions 422, 424, 426, and 428 are all the same.
However, in other embodiments, the image signals of the red, green, and blue fields are respectively S(Ra, Gb, Bc, Rd), S(Ga, Bb, Rc, Gd), and S(Ba, Rb, Gc, Bd). Also, the corresponding color sequences respectively received by the display regions 422, 424, 426, and 428 can be different. For example, referring to the schematic block diagrams shown in FIGS. 8A′ and 8B′, the corresponding color sequence of the signal received by the display region 422 is red→green→blue (that is, SRa→SGa→SBa in FIGS. 8A′ and 8B). In addition, the corresponding color sequence of the signal received by the display region 424 is green→blue→red (that is, SGb→SBb→SRb in FIGS. 8A′ and 8B′. The corresponding color sequence of the signal received by the display region 426 is blue→red→green (that is, SBc→SRc→SGc in FIGS. 8A′ and 8B′). The corresponding color sequence of the signal received by the display region 428 is red→green→blue (that is, SRd→SGd→SBd in FIGS. 8A′ and 8B′).
Summarizing the descriptions of the embodiments, the invention further provides a driving method of a color sequential display apparatus, as shown in
In summary, the image processing circuit in the color sequential display apparatus of the invention categorizes and segments the image signal of the color frame received according to the color information. The image processing circuit further transmits the image signal according to the predetermined color sequence. Hence, the color sequential display apparatus of the invention not only provides superior display image, but also simplifies the design of transmission interface, thereby saving overall costs and reducing power consumption of the overall display system. The driving method of the color sequential display apparatus in the invention greatly enhances the display quality and reduces the power consumption and costs.
Although the invention has been described in considerable detail with reference to certain preferred embodiments thereof, the disclosure is not for limiting the scope of the invention. Persons having ordinary skill in the art may make various modifications and changes without departing from the scope and spirit of the invention. Therefore, the scope of the appended claims should not be limited to the description of the preferred embodiments described above.
| Number | Date | Country | Kind |
|---|---|---|---|
| 98136686 | Oct 2009 | TW | national |
