Projection display device

Abstract

Projection display device (100) comprising: an image processing circuit (114) configured to receive an input video signal (VI2) with a first resolution and convert the input video signal (VI2) into a plurality of output video signals (VO1a; VO1b; VO1c, VO1d) with second resolutions, each of the second resolutions being smaller than the first resolution; a color management circuit (116) configured to receive the output video signals (VO1a; VO1b; VO1c, VO1d) with the second resolutions and separate the colors of the output video signals (VO1a; VO1b; VO1c, VO1d) with the second resolutions, and output the output video signals (VO1a; VO1b; VO1c, VO1d) with different color components; a projection device (130) with a native resolution, the native resolution being the second resolution, and the projection device (130) is configured to output the video signals (VO2a; VO2b; VO2c;VO2d) projects and displays; and a multi-axis displacement device (140) located in front of a projection lens (150) and configured to periodically shift the output video signals (VO2a; VO2b; VO2c; VO2d) emitted by the projection device (130) onto a projection screen according to a control time signal (TS1).

Description

BACKGROUNDTechnical FieldThe present disclosure relates to a projection display apparatus. More particularly, the present disclosure relates to a projection display apparatus for displaying 8K resolution images.Prior ArtAs display technology develops, the need for the highest display resolution is becoming more and more frequent, for example, in major events or occasions where a large projected area is required.Many video signals have been developed to achieve a resolution of greater than 4K (3840x2160) and even a resolution of 8K (7680x4320). The conventional projection display apparatus does not have a corresponding 8K projection display component. Therefore, a break-through in signal processing and display technology is required to achieve an 8K display technology.SUMMARYAn embodiment of the present disclosure is a projection display apparatus. The projection display apparatus includes an image processing circuit, a color management circuit, an image projection display device, and a multiaxial translation device. The image processing circuit is configured to receive an input video signal having a first resolution and convert the input video signal to a plurality of output video signals having second resolutions, each of the second resolutions being less than the first resolution. The color management circuit is configured to receive the output video signals having the second resolutions and separate the colors of the output video signals having the second resolutions and output the output video signals having different color components. The projection apparatus has a native resolution, the native resolution being the second resolution, and the projection apparatus is configured to project and display the output video signals. The multiaxial shifting device is located in front of a projection lens and is configured to periodically shift the output video signals output from the projection device to a projection screen according to a control timing signal.In some embodiments, when converting the input video signal having the first resolution to the output video signals having the second resolutions, the color management circuit is configured to: split pixel points of the input video signal into a plurality of regions; split pixel points of each of the regions into a plurality of blocks, the blocks of each of the regions including a first block corresponding to a first position, a second block corresponding to a second position, a third block corresponding to a third position, and a fourth block corresponding to a fourth position; and combine the blocks of the regions corresponding to the same position to obtain the output video signals having the second resolutions.In some embodiments, the first position is an upper left position of each of the blocks, the second position is an upper right position of each of the blocks, the third position is a lower left position of each of the blocks, and the fourth position is a lower right position of each of the blocks.In some embodiments, the output video signals at the second resolutions include a first output video signal having the blocks corresponding to the upper left position, a second output video signal having the blocks corresponding to the upper right position, a third output video signal having the blocks corresponding to the lower left position, and a fourth output video signal having the blocks corresponding to the lower right position.In some embodiments, the output video signals having different color components include a plurality of first output video signals having different color components, a plurality of second output video signals having different color components, a plurality of third output video signals having different color components, a plurality of fourth output video signals having different color components, and when the colors of the output video signals having the second resolutions are separated, the color management circuit is configured to: separate the colors of the first output video signal to obtain the first output video signals having different color components; separate the colors of the second output video signal to obtain the second output video signals having different color components; separate the colors of the third output video signal to obtain the third output video signals having different color components; separating the colors of the fourth output video signal to obtain the fourth output video signals having different color components.In some embodiments, the first output video signals having different color components correspond one-to-one to the colors red, green, and blue, the second output video signals having different color components correspond one-to-one to the colors red, green, and blue, the third output video signals having different color components correspond one-to-one to the colors red, green, and blue, and the fourth output video signals having different color components correspond one-to-one to the colors red, green, and blue.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a functional block diagram of a projection display apparatus according to an embodiment of the present disclosure. FIG. 2 is a partial circuit diagram of a projection display apparatus according to an embodiment of the present disclosure. FIG. 3 is a schematic diagram of an image conversion method according to an embodiment of the present disclosure. FIG. 4 is a schematic diagram of the image projected from a display device shifted at different times based on a control time signal according to an embodiment of the present disclosure. FIG. 5 is a flowchart of a display method according to an embodiment of the present disclosure. FIG. 6 is a flowchart of a display method for an image shifted at different times based on a control timing signal according to an embodiment of the present disclosure.DETAILED DESCRIPTIONIt is to be understood that in the present specification and in the following claims, the terms "comprise" or "comprising", "contain" or "containing", "comprising" or "having", "consisting" or "consisting", and the like, as used herein, are to be understood as open ended, i.e., mean including, but not limited to.It is understood that in the present specification and in the following claims, the terms "coupled," "electrically coupled," "electrically connecting" may indicate that two or more components are directly physically or electrically in contact with each other or are indirectly physically or electrically in contact with each other. That is, there may be interposed elements. Moreover, "electrically connect" or "connect" may also refer to the interaction or interaction between two or more elements.FIG. 1 is a functional block diagram of a projection display apparatus according to an embodiment of the present disclosure. The projection display apparatus 100 includes a processing circuit 110, a driving circuit 120, a projection device 130, a multiaxial translation device 140, and a lens 150. The processing circuit 110 includes a motion blur removing circuit 112, an image processing circuit 114, a color management circuit 116, and a control circuit 118. The projection device 130 includes a light source 132 and a digital microdisplay component 134. The processing circuit 110 is electrically connected to the driving circuit 120, the projection device 130, and the multiaxial translation device 140.In one embodiment, the processing circuit 110 may be a central processing unit (CPU), a graphics processor, a field programmable logic gate array (FPGA), or other circuit with image processing functionality.It should be noted that the projection display apparatus 100 is not limited to the above embodiments, and also the connection relationship is not limited to the above embodiments. Any connection method and implementation method sufficient for the projection display device 100 to implement the following technical contents can be applied to the present disclosure.In one embodiment, the projection apparatus 130 in the projection display device 100 has a native resolution of 3840x2160, also known as 4K resolution. In some situations, the resolution of the input video signal VI1 may be greater than the native resolution of the projection device 130. For example, the input video signal VI1 has a resolution of 7680x4320, also known as 8K resolution. In general, when the input image resolution is larger than the native resolution of the projection apparatus, the projection display apparatus can exhibit only the effect of the native resolution. In an embodiment of the present disclosure, the projection display apparatus 100 may activate the multi-axis shifter 140 according to the resolution of the input video signal VII. The detailed process will be described later.FIG. 2 is a partial circuit diagram of a projection display apparatus according to an embodiment of the present disclosure. In one embodiment of the present disclosure, after the processing circuit 110 receives the input video signal VI1, the motion blur removing circuit 112 uses motion estimation and motion compensation (MEMC) to process the input video signal VI1 to improve the blurring phenomenon of the input video signal VI1 and to increase the quality of the input video signal VI1. The input video signal VI2 is a video signal processed by the motion blur removing circuit 112.For example, if the resolution of the input video signal VI2 is greater than the native resolution of the projector 130, the image processing circuit 114 converts the input video signal VI2 at the first resolution into a plurality of output video signals, each of the plurality of output video signals having a second resolution. For example, the input video signal VI2may have the first resolution (such as 8K). In this case, the input video signal VI2 is converted into four output video signals, and the second resolution of each output video signal may be 4K. In this embodiment, the image processing circuit 114 converts the input video signal VI2 into four output video signals each having a resolution of 4K.Referring to FIGS. 2 and 3, FIG. 3 is a schematic diagram of an image conversion method according to an embodiment of the present disclosure. As shown in FIG. 3, in one embodiment, the image processing circuit 114 converts the input video signal VI2 of 8K resolution into four output video signals VO1a, VO1b, VO1c, and VOld. Each of the output video signals VO1a, VO1b, VO1c and VOld extracts 1 / 4 of the pixels from the input video signal VI2 having a resolution of 8K to form a set of output video signals having a resolution of 4K.The conversation method is shown in FIG. 3 using the example of 4x4 pixel points. The 16 pixel points of the input video signal VI2 are equally divided into four pixel regions, e.g., an upper left region, an upper right region, a lower left region, and a lower right region. The four pixel points of each region are further divided into four pixel blocks, e.g., an upper left block, an upper right block, a lower left block, and a lower right block, and the pixels of the same pixel block in the four pixel regions are combined into a new output video signal. In this embodiment, the pixel points of the same pixel block are identified with the same number for simplicity. The four pixel points of the output video signal VO1a consist of the upper left pixel block (number 1) in the four areas of the original input video signal VI2. The output video signal VO1b consists of the upper right pixel block (number 2), the output video signal VO1c consists of the lower right pixel block (number 3), and the output video signal VO1d consists of the lower left pixel block (number 4).After the image processing circuit 114 in Fig. 1 has converted the input video signal VI2 into four output video signals VO1, VO1b, VO1c and VO1d, it outputs them to the color management circuit 116. Referring to Fig. 2, after the color management circuit 116 in Fig. 2 has received four output video signals VO1, VO1b, VO1c and VO1d, the color management circuit 116 separates them according to their color components.In one embodiment, the color management circuit 116 takes the RGB color separation as an example. Namely, an 8-bit color image is composed of red, green and blue (R, G, B) images having color gradations of 0 to 255. The closer to the 0 gradation, the darker the color (closer to black), the closer to the 255 gradation, the lighter the color (closer to white). Therefore, it is necessary to process the red, green and blue components of the image separately. The color management circuit 116 separates the red component of the output video signal VO1a into a red component output video signal VO1aR, the green component into a green component output video signal VO1aG, and the blue component into a blue component output video signal VO1aB. Similarly, the output video signals VO1b, VO1c and VO1d are separated by the red component and produce the red component output video signals VO1bR, VO1cR and VO1dR. The output video signals VO1b, VO1c and VO1d are separated by the green component and produce the output green component video signals VO1bG, VO1cG and VO1dG. The output video signals VO1b, VO1c and VO1d are separated by the blue component and produce the blue component output video signals VO1bB, VO1cB and VO1dB.In the above embodiment, the color management circuit 116 uses the RGB color separation, but the description is not limited thereto. In other embodiments, the color management circuit 116 may also employ other color separation processing techniques, such as four-color separation, red-color blue-white (RGBW) color separation, luminance chromaticity (YCbCr) color separation, or other techniques. Those skilled in the art can understand how to replace the above color separation method, and various color separation methods fall within the scope of the present disclosure.The control circuit 118 is configured to output the first control timing signal TS 1 and the second timing signal TS 2 to control the operation timing of the driving circuit 120 and the multiaxial shifting device 140.As the resolution of the video signal is higher, the data amount of the video signal is larger. In one embodiment, the output video signal processed by the color management circuit 116 is transmitted through a serializer / deserializer (SerDes). The SerDes is a device capable of compressing a single-ended bus having a large bit width into one or more differential signals, converting parallel signals into high-speed sequence signals, and transmitting a large amount of data.In FIG. 2, the driver circuit 120 includes a formatter 122, a formatter 124, and a formatter 126. The color management circuit 116 outputs the color-separated video signal to the formatter 122, formatter 124, and formatter 126. At one cycle of the control timing signal TS1, the color management circuit 116 simultaneously outputs the red component output video signals VO1aR and VO1bR, the green component output video signals VO1aG and VO1bG, and the blue component output video signals VO1aB and VO1bB to the formatter 122, formatter 124, and formatter 126. In the next cycle of the control timing signal TS1, the color management circuit 116 simultaneously outputs the red component output video signals VO1cR and VO1dR, the green component output video signals VO1cG and VO1dG, and the blue component output video signals VO1cB and VO1dB to the formatter 122, formatter 124, and formatter 126.The formatter 122 processes the red component output video signals VO1aR, VO1bR, VO1cR and VO1dR and generates the red component output video signals VO2aR, VO2bR, VO2cR and VO2dR in a frame format required for the projection apparatus 130. The formatter 124 processes the green component output video signals VO1aG, VO1bG, VO1cG and VO1dG and generates the green component output video signals VO2aG, VO2bG, VO2cG and VO2dG in a frame format required for the projection apparatus 130. The formatter 126 processes the blue component output video signals VO1aB, VO1bB, VO1cB and VO1dB and generates the blue component output video signals VO2aG, VO2bG, VO2cG and VO2dG in a frame format required for the projection apparatus 130.In addition, the formatter 122, the formatter 124, and the formatter 126 transmit the control timing signal TS 1 generated by the control circuit 118 to the projection apparatus 130. In step S240 and step S250 of Fig. 5, the projector 130 receives the red component output video signals VO2aR, VO2bR, VO2cR and VO2dR, the green component output video signals VO2aG, VO2bG, VO2cG and VO2dG, and the blue component output video signals VO2aB, VO2bB, VO2cB and VO2dB. The projection device 130 cooperates with the multiaxial displacement device 140.In an embodiment, the digital micro-display device 134 in the projection device 130 may include an array of a plurality of microlenses and micro-switches for adjusting the above microlenses. The digital micro display device 134 projects a display screen by the light LS transmitted from the light source 132.In one embodiment, the multi-axis translation device 140 may include two sets of voice coil motors and a lens, one of the voice coil motors being configured to rotate the lens such that the image projected by the digital microdisplay component 134 is translated along the first axis, e.g., the projected image is translated up and down the screen along the vertical axis. Another voice coil motor is configured to drive the lens to rotate so that the image projected from the digital microdisplay component 134 is shifted along the second axis, e.g., by shifting the projected image left and right along the horizontal axis on the screen. However, the disclosure is not limited thereto. The operation of the two voice coil motors and lens is not limited to shifting the projected image along the vertical and horizontal axes on the screen, or may be along two different axes. For example, the projected image is shifted by +45 degrees and -45 degrees. In another embodiment, the multi-axis translation device 140 may also include a set of voice coil motors that rotate the lens such that the image projected by the digital microdisplay component 134 translates along a single axis. In another embodiment, the multi-axis translation device 140 may include multiple sets of voice coil motors that each rotate the lens to move the image projected by the digital microdisplay component 134 along different axes.Referring to FIGS. 4 and 6, FIG. 4 is a schematic diagram of the image projected from a display device shifted at different times based on a control time signal according to an embodiment of the present disclosure. FIG. 6 is a flowchart of a display method for an image shifted at different times based on a control timing signal according to an embodiment of the present disclosure. The control circuit 118 transmits the first control timing signal TS 1 and the second timing signal TS 2 to the driving circuit 120 and the multiaxial shifting device 140. The driver circuit 120 then transmits the first control timing signal TS 1 to the digital micro display device 134 in the projection device 130. In this way, the multi-axis shifter 140 and the digital micro-display device 134 can switch the image simultaneously according to the synchronized first clock signal TS 1 and the second clock signal TS 2. The image position F0represents the original image position projected from the digital microdisplay component 134 through the lens 150 when the multiaxial translation device 140 is not actuated (i.e., it does not cause translation of the projection screen).As shown in Fig. 4, the output video signal VO2a is a component of the red component output video signal VO2aR, the green component output video signal VO2aG, and the blue component output video signal VO2aB for the first time. The output video signal VO2b at the second time is one component of the red component output video signal VO2bR, the green component output video signal VO2bG, and the blue component output video signal VO2bB. The output video signal VO2c at the third time is one component of the red component output video signal VO2cR, the green component output video signal VO2cG, and the blue component output video signal VO2cB. The output video signal VO2d at the fourth time is one component of the red component output video signal VO2dR, the green component output video signal VO2dG, and the blue component output video signal VO2dB.In step S 251 of FIG. 6, at the first time, the control circuit 118 controls the multiaxial shifting device 140 to be biaxially shifted to an upper left position. In this embodiment, the control circuit 118 transmits the second timing signal TS 2 to the multiaxial displacement device 140, and then controls the multiaxial displacement device 140 to perform the above displacement. For example, in the embodiment of FIG. 4, the multi-axis translation apparatus 140 includes two two-axis motors, one of the motors driving the digital microdisplay device 134 to translate it leftward by 1 / 4 pixel width, and the other motor simultaneously driving the digital microdisplay device 134 to translate it upward by 1 / 4 pixel width. At the same time, the digital microdisplay device 134 images the output video signal VO2a consisting of the red component output video signal VO2aR, the green component output video signal VO2aG and the blue component output video signal VO2aB. The light LS projected from the light source 132 passes through the digital microdisplay device 134 to output the video signal VO2a at the first time, as shown in FIG. 4. In this embodiment, the first timing signal TS 1 and the second timing signal TS 2 are synchronized with each other to ensure that the driving operation of the multiaxial translation device 140 and the imaging operation of the digital micro display device 134 are performed at the same time.For the second time, in step S 252, the control circuit 118 transmits the second timing signal TS 2 to the multiaxial displacement device 140, thereby controlling the multiaxial displacement device 140 to be biaxially displaced to an upper right position. At the same time, the digital microdisplay device 134 maps the output video signal VO2b. The light LS projected from the light source 132 passes through the digital microdisplay device 134 to output the video signal VO2b at the second timing as shown in FIG. 4.For the third time, in step S 253, the control circuit 118 transmits the second timing signal TS 2 to the multiaxial displacement device 140, thereby controlling the multiaxial displacement device 140 to be biaxially displaced to a lower right position. At the same time, the digital microdisplay device 134 maps the output video signal VO2c. The light LS projected from the light source 132 passes through the digital microdisplay device 134 to output the video signal VO2c at the third time, as shown in FIG. 4.At the fourth time, in step S 254, the control circuit 118 transmits the second timing signal TS 2 to the multiaxial displacement device 140, thereby controlling the multiaxial displacement device 140 to be biaxially displaced to a lower left position. At the same time, the digital microdisplay device 134 maps the output video signal VO2d. The light LS projected from the light source 132 passes through the digital microdisplay device 134 to output the video signal VO2d at the fourth timing as shown in FIG. 4.The first time to the fourth time is a cyclic operation. After the output video signal VO2d is projected, the control circuit 118 controls the multiaxial shifting device 140 to be biaxially shifted to the upper left position, and performs the first process again.The output video signal VO2a, the output video signal VO2b, the output video signal VO2c and the output video signal VO2d partially overlap as shown in Fig. 4. Moreover, in a cycle from the first to the fourth times, the image overlapped by the four 4K resolution images of the output video signal VO2a-VO2d corresponds to the 8K resolution image used to support the 8K resolution input image.FIG. 5 is a flowchart of a display method according to an embodiment of the present disclosure. FIG. 5 includes step S 210, step S 220, step S 230, step S 240, and step S 250. In step S210, the motion blur removing circuit 112 in the processing circuit 110 receives the input video signal VI1 at the first resolution, the processing reduces the dynamic blur when a lens in the content of the input video signal VI1 is moved, and outputs the processed input video signal VI2. In step S220, the image processing circuit 114 receives the input video signal processed by the motion blur removing circuit 112 and converts the input video signal VI2 into the plurality of output video signals VO1a-VO1d having the second resolution. In step S230, the color management circuit 116 receives the output video signals VO1a-VO1d, separates and outputs the color components of the output video signals VO1a-VO1d. In step S240, the driving circuit 120 receives the various color components of the output video signals (VO1a-VO1dR, VO1aG-VO1dG, VO1aB and VO1dB) and transmits them to the projector 130. In step S 250, the multi-axis translation device 140 controls the lens to the image to be translated projected from the projection device 130. The detailed operation mode is as described in FIG. 6 above, and details will not be described again here.By the operation of the above embodiment, the projection display apparatus realizes an image whose output resolution is higher than the native resolution of the projection apparatus by the cooperation between the digital microdisplay component and the slide apparatus.Reference will now be made in detail to the present embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. It will be apparent to those skilled in the art that, after understanding the embodiments of the present disclosure, various modifications and variations can be made based on the teachings of the disclosure without departing from the scope or spirit of the disclosure.

Claims

A projection display apparatus (100) comprising: an image processing circuit (114) configured to receive an input video signal (VI2) having a first resolution and convert the input video signal (VI2) into a plurality of output video signals (VO1a; VO1b; VO1c, VO1d) having second resolutions, each of the second resolutions being less than the first resolution; a color management circuit (116) configured to receive the output video signals (VO1a; VO1b; VO1c, VO1d) having the second resolutions and to receive the colors of the output video signals (VO1a; VO1b; VO1c, VO1d) having the second resolutions and outputting the output video signals (VO1a; VO1b; VO1c, VO1d) having different color components; a projection device (130) having a native resolution, the native resolution being the second resolution, and the projection device (130) is configured to project and display the output video signals (VO2a; VO2b; VO2c; VO2d); and a multiaxial translation device (140) located in front of a projection lens (150) and configured to project the output video signals (VO2a; VO2b; VO2c; VO2d) output from the projection apparatus (130) is periodically shifted to a projection screen according to a control timing signal (TS1).The projection display apparatus according to claim 1, wherein in converting the input video signal (VI2) having the first resolution into the output video signals (VO1a; VO1b; VO1c, VO1d) having the second resolutions, the color management circuit (116) is configured to: divide pixel points of the input video signal (VI2) into a plurality of regions; divide pixel points of each of the regions into a plurality of blocks, the blocks of each of the regions including a first block corresponding to a first position, a second block corresponding to a second position, a third block corresponding to a third position, and a fourth block corresponding to a fourth position; and combine the blocks of the regions corresponding to the same position to obtain the output video signals (VO1a; VO1b; VO1c; VO1d) having the second resolutions.The projection display apparatus according to claim 2, wherein the first position is an upper left position of each of the blocks, the second position is an upper right position of each of the blocks, the third position is a lower left position of each of the blocks, and the fourth position is a lower right position of each of the blocks.The projection display apparatus according to claim 3, wherein the output video signals (VO1a; VO1b; VO1c; VO1d) having the second resolutions comprise a first output video signal (VO1a) comprising the blocks corresponding to the upper left position, a second output video signal (VO1b) comprising the blocks corresponding to the upper right position, a third output video signal (VO1d) comprising the blocks corresponding to the lower left position, and a fourth output video signal (VO1c) comprising the blocks corresponding to the lower right position.A projection type display apparatus according to claim 4, wherein said output video signals (VO1a; VO1b; VO1c, VO1d) having different color components include a plurality of first output video signals (VO1aR; VO1aG; VO1aB) having different color components, a plurality of second output video signals (VO1bR; VO1bG; VO1bB) having different color components, a plurality of third output video signals (VO1cR; VO1cG; VO1cB) having different color components, a plurality of fourth output video signals (VO1dR; VO1dG; vo1dB) having different color components, and when the colors of the output video signals having the second resolutions are separated, the color management circuit is configured to: separate the colors of the first output video signal (VO1aR; VO1aG; VO1aB) to obtain the first output video signals (VO1aR; VO1aG; VO1aB) having different color components; separate the colors of the second output video signal (VO1bR; VO1bG; VO1bB) to obtain the second output video signals (VO1bR; VO1bG; VO1bB) having different color components; separating the colors of the third output video signal (VO1cR; VO1cG; VO1cB) to obtain the third output video signals (VO1cR; VO1cG; VO1cB) having different color components; and separating the colors of the fourth output video signal (VO1dR; VO1dG; VO1dB) to obtain the fourth output video signals (VO1dR; VO1dG; VO1dB) having different color components.A projection display apparatus according to claim 5, wherein said first output video signals (VO1aR; VO1aG; VO1aB) having different color components correspond to red, green and blue in a one-to-one manner, said second output video signals (VO1bR; VO1bG; VO1bB) having different color components correspond to red, green and blue in a one-to-one manner, said third output video signals having (VO1cR, VO1cG; VO1cB) having different color components correspond to red, green and blue in a one-to-one manner, and said fourth output video signals (VO1dR; vo1dG; VO1dB) having different color components correspond to red, green, and blue in a one-to-one manner.A projection display apparatus (100) comprising: a processing circuit (110) configured to receive an input video signal (VI1) having a first resolution and configured to convert the input video signal (VI1) having the first resolution into a plurality of output video signals (VO1a; VO1b; VO1c, VO1d) having second resolutions and configured to separate the colors of the output video signals (VO1a; VO1b; VO1c, VO1d) having the second resolutions, and configured to separate the output video signals (VO1a; VO1b; VO1c, VO1d) having different color components, wherein the output video signals (VO1a; VO1b; VO1c, VO1d) have second resolutions, and each of the second resolutions is less than the first resolution; a projection device (130) having a native resolution, the native resolution being the second resolution, and the projection device (130) is configured to project and display the output video signals (VO2a; VO2b; VO2c; VO2d); and a multiaxial translation device (140) located in front of a projection lens (150) and configured to project the output video signals (VO2a; VO2b; VO2c; VO2d) output from the projection apparatus (130) is periodically shifted to a projection screen according to a control timing signal (TS1).The projection display apparatus according to claim 7, wherein the processing circuit (110) comprises: an image processing circuit (114) configured to receive an input video signal (VI2) generated by processing the input video signal (VI1) at the first resolution and configured to extract pixels from the input video signal (VI2) to convert the input video signal (VI2) into the output video signals (VO1a; VO1b; VO1c, VO1d) at the second resolutions; and a color management circuit (116) configured to convert the output video signals (VO1a; VO1b; VO1c; VO1d) having the second resolutions and configured to separate the colors of the output video signals (VO1a; VO1b; VO1c; VO1d) having the second resolutions and configured to output the output video signals (VO1a; VO1b; VO1c, VO1d) having the different color components.

Images