Pixel shifting method and method of controlling display screen

Abstract

To provide a pixel shifting method and a method of controlling a display screen.SOLUTION: The present invention discloses a pixel shifting method and a method of controlling a display screen. The pixel shifting method is adapted for the display screen and the display screen includes at least one processor to perform the following steps. When the display screen displays a picture, pixel shifting is performed on a central point of the picture according to a shifting path. A plurality of pixels on the shifting path is allowed to be sequentially displayed on the display screen according to a plurality of different color attributes. The color attribute of each of the plurality of pixels is changed after a cycle of the pixel shifting ends.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for controlling a display screen, and in particular to a pixel shifting method and a control method for a display screen. [Background technology]

[0002] Image retention in a display screen is usually caused by usage in which the pixels of the display screen accumulate unevenly, causing some areas of the display screen to become discolored.

[0003] When the organic light emitting diodes of the display screen display static characters or patterns for a long time, the light emitting efficiency of the organic light emitting diodes will decrease. In order to prevent this decrease in light emitting efficiency, the pixels of the display screen are made to perform pixel shifting.

[0004] However, the current pixel shift is limited to single or multiple sets of moving modes, and still has a certain wear and tear on the usage of the organic light emitting diode. Moreover, unexpected pixel shifts cause difficulties for users who need to perform precise operations with a touch pen. Summary of the Invention [Problem to be solved by the invention]

[0005] The technical problem that the present invention aims to solve is to provide a pixel shifting method and a control method for a display screen in response to the shortcomings of the existing technology. [Means for solving the problem]

[0006] In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a pixel shifting method, which is applied to a display screen, and the display screen includes at least one processor, which performs the following steps during a period of displaying an image on the display screen: a center point of the image performs pixel shifting according to a shifting path, a plurality of pixels in the shifting path are sequentially displayed on the display screen with a plurality of different color attributes, and after a shifting period of the pixel shifting is completed, the color attributes of each pixel are changed.

[0007] In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a control method for a display screen, which comprises disposing at least one processor to perform the following steps: starting a timer, determining whether the timer has timed out, if the timer has timed out, determining whether a touch signal has been received, and if a touch signal has not been received, performing a pixel shifting method.

[0008] One of the beneficial effects of the present invention is that the pixel shift method and the display screen control method provided by the present invention can reduce the state in which the display screen displays a still image for a long time through the combination of pixel shift and brightness change, and reduce the wear of the light-emitting units of the display screen, thereby improving the resistance to image retention and burn-in. Furthermore, the effect of pixel shift on the user when using the display screen can be avoided.

[0009] In order to better understand the features and technical contents of the present invention, please refer to the following detailed description of the present invention and the drawings, which are only used for reference and explanation, and are not intended to limit the present invention. [Brief description of the drawings]

[0010] [Figure 1]3 is a flowchart of a pixel shifting method according to the first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of the pixel shifting method shown in FIG. [Diagram 3] 10 is a flowchart of a pixel shifting method according to a second embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of the pixel shifting method shown in FIG. [Diagram 5] FIG. 1 is a schematic diagram of an eight-shaped shift path. [Figure 6] FIG. 13 is a schematic diagram of a staggered shift path. [Figure 7] FIG. 1 is a schematic diagram of an inverted eight-shaped shift path. [Figure 8] FIG. 13 is a schematic diagram of an inverted staggered shift path. [Figure 9] FIG. 2 is a schematic diagram of a cross-shaped shift path. [Figure 10] 2 is a flowchart of a control method for a display screen in a first embodiment according to the present invention. [Figure 11] 5 is a flowchart of a method for controlling a display screen in a second embodiment according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] FIG. 1 is a flow chart of a pixel shifting method in a first embodiment according to the present invention. The pixel shifting method is applied to a display screen, which includes at least one processor and executes the following steps: In step S101, within a predetermined luminance range, a plurality of different luminances are divided according to the number of a plurality of pixels in a shift path. Specifically, each pixel of the display screen is composed of one or more organic light-emitting diodes. In step S102, during a period in which an image is displayed on the display screen, a center point of the image is pixel shifted according to the shift path. Specifically, when the pixel shift is executed, a center point of the image displayed on the display screen moves sequentially along the plurality of pixels in the shift path, and the entire image displayed also moves accordingly. In step S103, a plurality of pixels in the shift path are sequentially displayed on the display screen with a plurality of divided luminances. In step S104, after a shift period of the pixel shift is completed, the luminance of each pixel is changed to the luminance of the previous pixel in the shift path that was displayed on the display screen.

[0012] Fig. 2 is a schematic diagram of the pixel shifting method shown in Fig. 1. For the sake of simplicity, Fig. 2 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 on the display screen as representatives, but the number of pixels on the display screen is not limited thereto.

[0013] The time it takes to shift from one pixel to another is a display time interval (eg, the reciprocal of the frame rate), and the first pixel N1 to the seventh pixel N7 constitute one shift period.

[0014] In the first shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the first luminance BL1, the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5, the sixth luminance BL6 and the seventh luminance BL7, respectively.

[0015] In the second shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the seventh luminance BL7, the first luminance BL1, the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5 and the sixth luminance BL6, respectively.

[0016] In this way, in the seventh shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5, the sixth luminance BL6, the seventh luminance BL7 and the first luminance BL1, respectively.

[0017] Fig. 3 is a flowchart of a pixel shifting method in a second embodiment of the present invention. The pixel shifting method shown in Fig. 3 includes steps S301 to S304, and the difference between Fig. 3 and Fig. 1 is in step S304, and steps S301 to S303 are the same as steps S101 to S103, respectively. In step S304, after a shift period of the pixel shift is completed, the luminance of each pixel is changed to the luminance of the pixel immediately following it in the shift path that was displayed on the display screen.

[0018] Fig. 4 is a schematic diagram of the pixel shifting method shown in Fig. 3. For the sake of simplicity, Fig. 4 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 on the display screen as representatives, but the number of pixels on the display screen is not limited thereto.

[0019] In the first shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the first luminance BL1, the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5, the sixth luminance BL6 and the seventh luminance BL7, respectively.

[0020] In the second shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5, the sixth luminance BL6, the seventh luminance BL7 and the first luminance BL1, respectively.

[0021] In this way, in the seventh shift period, the first pixel N1, the second pixel N2, the third pixel N3, the fourth pixel N4, the fifth pixel N5, the sixth pixel N6 and the seventh pixel N7 correspond to the seventh luminance BL7, the first luminance BL1, the second luminance BL2, the third luminance BL3, the fourth luminance BL4, the fifth luminance BL5 and the sixth luminance BL6, respectively.

[0022] Simply put, the intensities of the pixels are cycled, i.e. the intensities corresponding to a particular pixel during one shift period become the intensities corresponding to its neighboring pixels during the next shift period.

[0023] The luminance mentioned in Figure 1 and Figure 3 belongs to the color attribute of the pixel, and in the pixel shifting method proposed by the present invention, the change of the color attribute of the pixel is not limited to only the luminance. In another embodiment, the pixels in the shifting path are sequentially displayed on the display screen according to multiple different colors, and after each shifting period of the pixel shifting, the color of each pixel is changed to the color that the previous pixel or the next pixel in the shifting path was displayed on the display screen.

[0024] FIG. 5 is a schematic diagram of an 8-shaped shift path. For the sake of simplicity, FIG. 5 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 as representatives, but the number of pixels of the display screen is not limited to this. Among them, the second pixel N2 is spaced apart from the first pixel N1 by one pixel interval in the negative X-axis direction, and the third pixel N3 is spaced apart from the second pixel N2 by one pixel interval in the positive Y-axis direction. The fourth pixel N4 is spaced apart from the third pixel N3 by one pixel interval in the positive X-axis direction. The fifth pixel N5 is spaced apart from the first pixel N1 by one pixel interval in the negative Y-axis direction, and the sixth pixel N6 is spaced apart from the fifth pixel N5 by one pixel interval in the positive X-axis direction. The seventh pixel N7 is spaced one pixel apart from the sixth pixel N6 in the positive Y-axis direction.

[0025] Initially, the center point of the image displayed on the display screen is located at the first pixel N1, and in the next display time interval (e.g., the inverse of the frame rate), the center point of the image displayed on the display screen shifts to the second pixel N2. In the next time interval, the center point of the image displayed on the display screen shifts to the third pixel N3. In this way, when the center point of the image displayed on the display screen shifts to the seventh pixel N7, one shift period is completed. Then, the center point of the image displayed on the display screen returns to the first pixel N1 again.

[0026] FIG. 6 is a schematic diagram of a staggered shift path. FIG. 6 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 as representatives, but the number of pixels of the display screen is not limited to this. Among them, the second pixel N2 is spaced apart from the first pixel N1 by one pixel interval in the negative Y-axis direction, and the third pixel N3 is spaced apart from the second pixel N2 by one pixel interval in the positive X-axis direction. The fourth pixel N4 is spaced apart from the third pixel N3 by one pixel interval in the positive Y-axis direction. The fifth pixel N5 is spaced apart from the first pixel N1 by one pixel interval in the positive Y-axis direction, and the sixth pixel N6 is spaced apart from the fifth pixel N5 by one pixel interval in the negative X-axis direction. The seventh pixel N7 is separated from the sixth pixel N6 by one pixel spacing in the negative Y-axis direction.

[0027] FIG. 7 is a schematic diagram of an inverted eight-shaped shift path. FIG. 7 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 as representatives, but the number of pixels of the display screen is not limited to this. Among them, the second pixel N2 is spaced from the first pixel N1 by one pixel interval in the positive X-axis direction, and the third pixel N3 is spaced from the second pixel N2 by one pixel interval in the positive Y-axis direction. The fourth pixel N4 is spaced from the third pixel N3 by one pixel interval in the negative X-axis direction. The fifth pixel N5 is spaced from the first pixel N1 by one pixel interval in the negative Y-axis direction, and the sixth pixel N6 is spaced from the fifth pixel N5 by one pixel interval in the negative X-axis direction. The seventh pixel N7 is spaced one pixel apart from the sixth pixel N6 in the positive Y-axis direction.

[0028] FIG. 8 is a schematic diagram of an inverted staggered shift path. FIG. 8 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, a fifth pixel N5, a sixth pixel N6, and a seventh pixel N7 as representatives, but the number of pixels of the display screen is not limited to this. Among them, the second pixel N2 is spaced from the first pixel N1 by one pixel interval in the negative Y-axis direction, and the third pixel N3 is spaced from the second pixel N2 by one pixel interval in the negative X-axis direction. The fourth pixel N4 is spaced from the third pixel N3 by one pixel interval in the positive Y-axis direction. The fifth pixel N5 is spaced from the first pixel N1 by one pixel interval in the positive Y-axis direction, and the sixth pixel N6 is spaced from the fifth pixel N5 by one pixel interval in the positive X-axis direction. The seventh pixel N7 is separated from the sixth pixel N6 by one pixel spacing in the negative Y-axis direction.

[0029] FIG. 9 is a schematic diagram of a cross-shaped shift path. FIG. 9 shows a first pixel N1, a second pixel N2, a third pixel N3, a fourth pixel N4, and a fifth pixel N5 as representatives, but the number of pixels of the display screen is not limited to this. Among them, the second pixel N2 is spaced apart from the first pixel N1 by one pixel interval in the negative X-axis direction, and the third pixel N3 is spaced apart from the first pixel N1 by one pixel interval in the positive Y-axis direction. The fourth pixel N4 is spaced apart from the first pixel N1 by one pixel interval in the positive X-axis direction. The fifth pixel N5 is spaced apart from the first pixel N1 by one pixel interval in the negative Y-axis direction.

[0030] Initially, the center point of the image displayed on the display screen is located at the first pixel N1, and in the next display time interval, the center point of the image displayed on the display screen shifts to the second pixel N2. In the next time interval, the center point of the image displayed on the display screen returns to the first pixel N1 again. In the next time interval, the center point of the image displayed on the display screen shifts to the third pixel N3. In the next time interval, the center point of the image displayed on the display screen returns to the first pixel N1 again. In this way, when the center point of the image displayed on the display screen shifts to the fifth pixel N5, one shift period is completed. Then, the center point of the image displayed on the display screen returns to the first pixel N1 again.

[0031] It should be noted that the first pixel N1 to the seventh pixel N7 in Figures 5 to 8 may correspond to the first pixel N1 to the seventh pixel N7 in Figure 2 or Figure 4. That is, according to the pixel shifting method of the embodiment of the present invention, not only the center point of the image displayed on the display screen is moved sequentially along the multiple pixels in the shift path, but also the brightness or color of the pixel is changed in each shift period.

[0032] 10 is a flowchart of a control method for a display screen in a first embodiment of the present invention, which includes at least one processor to execute the following steps: Step S1001: start a timer; Step S1002: determine whether the timer has completed timing; if the timer has completed timing, proceed to step S1003; if the timer has not completed timing, return to step S1002.

[0033] In step S1003, the timer is stopped. In step S1004, it is determined whether a touch signal is received. If a touch signal is not received, the process proceeds to the next step S1005. If a touch signal is received, the process returns to step S1004.

[0034] In step S1005, a pixel shifting method is executed. Specifically, the processor executes the pixel shifting method in any of the above-mentioned embodiments. After step S1005, the process returns to step S1001.

[0035] 11 is a flowchart of a control method for a display screen in a second embodiment of the present invention, which includes configuring at least one processor to execute the following steps: Step S1101: start a timer; Step S1102: determine whether the timer has timed out; if the timer has timed out, proceed to step S1103; if the timer has not timed out, return to step S1102.

[0036] In step S1103, the timer is stopped. In step S1104, it is determined whether a touch signal is received. If a touch signal is not received, the process proceeds to step S1105. If a touch signal is received, the process returns to step S1004.

[0037] In step S1105, the pixel shifting method is executed. In step S1106, the shift path is changed, and then the process returns to step S1001. For example, when the processor executes the pixel shifting method for the first time, the figure-8 shift path is adopted. When the processor executes the pixel shifting method for the second time, the staggered shift path is adopted. When the processor executes the pixel shifting method for the third time, the inverted figure-8 shift path is adopted. When the processor executes the pixel shifting method for the fourth time, the inverted staggered shift path is adopted. When the processor executes the pixel shifting method for the fifth time, the cross shift path is adopted. When the processor executes the pixel shifting method for the sixth time, the figure-8 shift path is adopted again, and so on.

[0038] In simple terms, when a stylus or finger touches the display screen, the sensor circuitry of the display screen sends a touch signal to the processor. When the processor receives the touch signal, it determines that the display screen is in use and stops performing pixel shifting to ensure that the pixel shifting does not interfere with user operations. The pixel shifting will not start performing until the processor no longer receives the touch signal.

[0039] [Beneficial Effects of the Embodiments] One of the beneficial effects of the present invention is that the pixel shift method and the display screen control method provided by the present invention can reduce the state in which the display screen displays a still image for a long time through the combination of pixel shift and brightness change, and reduce the wear of the light emitting units of the display screen, thereby enhancing the resistance to image retention and burn-in, and also avoiding the impact of pixel shift on the user when using the display screen.

[0040] The above disclosure is merely a preferred embodiment of the present invention, and does not limit the scope of the claims of the present invention. Therefore, all equivalent technical modifications made based on the contents of the specification and accompanying drawings of the present invention shall be included in the scope of the claims of the present invention. [Explanation of symbols]

[0041] N1: First pixel N2: Second pixel N3: The third pixel N4: 4th pixel N5: 5th pixel N6: 6th pixel N7: 7th pixel BL1: First brightness BL2: Second brightness BL3: The third brightness BL4: The fourth brightness BL5: The fifth brightness BL6: 6th brightness BL7: 7th brightness S101-S104, S301-S304, S1001-S1005, S1101-S1106: Step

Claims

1. 1. A pixel shifting method applied to a display screen, the display screen including at least one processor, the at least one processor comprising: During a period of displaying an image on the display screen, a center point of the image performs pixel shifting according to a shift path; a plurality of pixels in the shift path are sequentially displayed on the display screen with a plurality of different color attributes; changing a color attribute of each of the pixels after a shift period of the pixel shift is completed; Execute 13. A pixel shifting method comprising:

2. 2. The pixel shifting method of claim 1, wherein changing a color attribute of each of the pixels after the shift period comprises changing a color attribute of each of the pixels after the shift period to a color attribute of a previous pixel in the shift path.

3. 2. The pixel shifting method of claim 1, wherein changing a color attribute of each of the pixels after the shift period comprises changing a color attribute of each of the pixels after the shift period to a color attribute of the pixel immediately preceding it in the shift path.

4. 2. The pixel shifting method of claim 1, wherein each said pixel is comprised of at least one organic light emitting diode.

5. The pixel shifting method of claim 1 , wherein the color attribute is luminance or color.

6. 6. The pixel shifting method of claim 5, further comprising: dividing into a plurality of different intensities based on a number of the plurality of pixels within a luminance range.

7. The pixel shifting method according to claim 1 , wherein the shifting path includes a figure-of-eight, a staggered, an inverted figure-of-eight, an inverted staggered, or a cross.

8. The pixel shifting method of claim 1 , wherein performing the pixel shifting with the center point of the image following the shift path comprises moving the center point of the image sequentially along the shift path to the plurality of pixels.

9. Disposing at least one processor; Starting a timer, determining whether the timer has timed out; determining whether a touch signal is received after the timer has timed out; If the touch signal is not received, executing the pixel shifting method according to any one of claims 1 to 8; Execute 13. A method for controlling a display screen, comprising:

10. 10. The method of claim 9, further comprising: changing the shift path when the timer is started again.

Images