Light board, display device, and display method of display device

Abstract

The present application discloses a lamp board, a display device and a display method for the display device, which relate to the field of display technology. The lamp board includes a substrate and a plurality of lamp bead combinations, and the plurality of lamp bead combinations are arrayed on the substrate; the lamp bead combination includes a first lamp bead combination and a second lamp bead combination, the first lamp bead combination includes a first lamp bead and a second lamp bead arranged adjacent to each other, and the second lamp bead combination includes a third lamp bead and a fourth lamp bead arranged adjacent to each other, wherein, within the current frame time, the first lamp bead and the third lamp bead are driven to emit light at the same time, and within the next frame time, the second lamp bead and the fourth lamp bead are driven to emit light at the same time; the color of the light emitted by the first lamp bead, the color of the light emitted by the second lamp bead, the color of the light emitted by the third lamp bead and the color of the light emitted by the fourth lamp bead are all different; through the above design, the present application improves the refresh rate and ensures the display effect.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a light board, a display device, and a display method of the display device. Background Art

[0002] With the rapid development of screen upgrades and various new technologies in the optoelectronic display industry, more and more new technologies in the display industry have brought brand-new experiences to users. Currently, liquid crystal displays (LCDs) have the largest market share, so the technical development direction of improving LCD display effects is still one of the main improvement directions of current products. Now, a new technology - color sequential method - provides a better direction and better results for the development of LCD products and products using Miniled.

[0003] Traditional LCD products have very low light transmittance due to the presence of polarizers and color filters, so the backlight brightness of LCD products needs to be very high to ensure the brightness of the picture display. In the display process of the existing color sequential method, since the mini-LED backlight is used for display control, a single sub-pixel is displayed each time, and the final image to be displayed is obtained through the integration effect of multiple frames of sub-pixel display in time and presented to the observer. However, since each frame only displays the color of one sub-pixel, if the LCD mini-LED has four sub-pixels, for the original 60hz product, for normal display, the refresh rate needs to be increased to 240hz. Under the same product, the significant increase in refresh rate will inevitably bring about a reduction in charging time. The reduced charging time may cause insufficient charging and display quality problems. Moreover, for four-color mixing display, all four colors need to be displayed in four frames to display the correct color. In the same time, the display effect is poor, and color decomposition is more easily observed by the human eye. Summary of the Invention

[0004] The purpose of this application is to provide a light board, a display device and a display method of the display device that improve the refresh rate and ensure the display effect.

[0005] The present application discloses a lamp board, comprising a substrate and a plurality of lamp bead combinations, wherein the plurality of lamp bead combinations are arrayed on the substrate; the lamp bead combination comprises a first lamp bead combination and a second lamp bead combination, the first lamp bead combination comprises a first lamp bead and a second lamp bead arranged adjacent to each other, and the second lamp bead combination comprises a third lamp bead and a fourth lamp bead arranged adjacent to each other, wherein, within a current frame time, the first lamp bead and the third lamp bead are driven to emit light at the same time, and within a next frame time, the second lamp bead and the fourth lamp bead are driven to emit light at the same time; the color of the light emitted by the first lamp bead, the color of the light emitted by the second lamp bead, the color of the light emitted by the third lamp bead, and the color of the light emitted by the fourth lamp bead are all different.

[0006] Optionally, the lamp board also includes multiple driving lines, a first switch, a second switch, a third switch, a fourth switch, a first control signal line and a second control signal line, each of the driving lines is respectively connected to the control end of the first switch, the control end of the second switch, the control end of the third switch and the control end of the fourth switch in a one-to-one correspondence, the output end of the first switch and the output end of the third switch are connected to the first control signal line, the output end of the second switch and the output end of the fourth switch are connected to the second control signal line; the first switch is connected to the first lamp bead, the second switch is connected to the second lamp bead, the third switch is connected to the third lamp bead, and the fourth switch is connected to the fourth lamp bead.

[0007] Optionally, the first lamp bead includes a red light lamp bead, the second lamp bead includes a blue light lamp bead, the third lamp bead includes a green light lamp bead, and the fourth lamp bead includes a white light lamp bead.

[0008] Optionally, the first lamp bead includes a red light lamp bead, the second lamp bead includes a white light lamp bead, the third lamp bead includes a green light lamp bead, and the fourth lamp bead includes a blue light lamp bead.

[0009] Optionally, the lamp board further includes a black isolation structure, and the black isolation structure is arranged between the second lamp bead and the third lamp bead.

[0010] Optionally, the width of the black isolation structure is equal to the distance between the second lamp bead and the third lamp bead; the height of the black isolation structure is consistent with the height of the second lamp bead and the height of the third lamp bead.

[0011] Optionally, the light board is divided into multiple light board areas. In each of the light board areas, within the current frame time, the first lamp bead and the third lamp bead are driven to emit light at the same time, and within the next frame time, the second lamp bead and the fourth lamp bead are driven to emit light at the same time.

[0012] The present application also discloses a display device, including a display panel and a lamp board as described above, wherein no color filter is provided in the display panel, the display panel and the lamp board are arranged opposite to each other, and the lamp board provides a backlight source for the display panel; the display panel includes a plurality of pixel units arranged in an array, and the lamp board includes a plurality of lamp bead combinations arranged in an array, and a row of the lamp bead combinations is arranged corresponding to at least one row of the pixel units; the lamp bead combinations include a first lamp bead combination and a second lamp bead combination, the first lamp bead combination includes first and second lamp bead combinations arranged adjacent to each other, and the second lamp bead combination includes third and fourth lamp bead combinations arranged adjacent to each other; within a current frame time, the first lamp bead and the third lamp bead in a row of the lamp bead combinations are driven to emit light simultaneously, and the pixel units corresponding to the first lamp bead and the third lamp bead control the deflection and light transmission of the liquid crystal; within a next frame time, the second lamp bead and the fourth lamp bead in a row of the lamp bead combinations are driven to emit light simultaneously, and the pixel units corresponding to the second lamp bead and the fourth lamp bead control the deflection and light transmission of the liquid crystal.

[0013] Optionally, a row of the lamp bead combination is set to correspond to the five rows of the pixel units; within the current frame time, the first lamp bead and the third lamp bead in a row of the lamp bead combination are driven to emit light at the same time, and the pixel units corresponding to the first and third lamp beads in the first row are first driven to control the deflection and light transmission of the liquid crystal, and then the pixel units corresponding to the first and third lamp beads in the second row are driven to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units corresponding to the first and third lamp beads in the five rows; within the next frame time, the second lamp bead and the fourth lamp bead in a row of the lamp bead combination are driven to emit light at the same time, and the pixel units corresponding to the second and fourth lamp beads in the first row are first driven to control the deflection and light transmission of the liquid crystal, and then the pixel units corresponding to the second and fourth lamp beads in the second row are driven to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units corresponding to the second and fourth lamp beads in the five rows.

[0014] The present application also discloses a display method for a display device, comprising the steps of:

[0015] The light board receives the current frame time signal;

[0016] The driving lines of the first row of the light board drive the first control signal lines to control the first lamp beads to emit light;

[0017] The driving line of the first row of the light board drives the second control signal line to control the third lamp bead to emit light;

[0018] The pixel unit of the display panel drives the liquid crystal corresponding to the first lamp bead and the liquid crystal corresponding to the third lamp bead to deflect simultaneously, so that the light emitted by the first lamp bead and the light emitted by the third lamp bead pass through the liquid crystal to display the corresponding pixel image;

[0019] The light board receives a next frame time signal;

[0020] The driving line of the first row of the light board drives the first control signal line to control the second lamp beads to emit light;

[0021] The driving line of the first row of the light board drives the second control signal line to control the fourth lamp bead to emit light;

[0022] The pixel unit of the display panel drives the liquid crystal corresponding to the second lamp bead and the liquid crystal corresponding to the fourth lamp bead to deflect simultaneously, so that the light emitted by the second lamp bead and the light emitted by the fourth lamp bead pass through the liquid crystal to display the corresponding pixel image;

[0023] The same process is repeated until the first lamp bead, the second lamp bead, the third lamp bead and the fourth lamp bead in the last row of the lamp board are driven to emit light, so as to complete the picture display of the entire display panel.

[0024] Optionally, in the current frame time signal, the light transmitted through the pixel unit of the first lamp bead corresponding to the display panel is red light, and the light transmitted through the pixel unit of the third lamp bead corresponding to the display panel is green light. In the next frame time signal, the light transmitted through the pixel unit of the second lamp bead corresponding to the display panel is blue light, and the light transmitted through the pixel unit of the fourth lamp bead corresponding to the display panel is white light.

[0025] Compared with the prior art solution in which an LCD has multiple sub-pixels and only displays the color of one sub-pixel in each frame, the lamp board of the present application includes a substrate and multiple lamp bead combinations, the lamp bead combination includes a first lamp bead combination and a second lamp bead combination, the first lamp bead combination includes adjacently arranged first and second lamp beads, and the second lamp bead combination includes adjacently arranged third lamp beads and fourth lamp beads, wherein, within the current frame time, the first lamp bead and the third lamp bead are driven to emit light at the same time, and within the next frame time, the second lamp bead and the fourth lamp bead are driven to emit light at the same time; the color of the light emitted by the first lamp bead, the color of the light emitted by the second lamp bead, the color of the light emitted by the third lamp bead and the color of the light emitted by the fourth lamp bead are all different; that is, it only takes two frames to complete the driving and emitting of the four-color lamp beads, saving half the time, thereby reducing the refresh rate and ensuring the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0027] Figure 1 This is a schematic structural diagram of the light board provided in the first embodiment of the present application;

[0028] Figure 2 is a schematic cross-sectional structural diagram of a light panel provided in the first embodiment of the present application;

[0029] Figure 3 is a schematic cross-sectional structural diagram of a display device provided in the first embodiment of the present application;

[0030] Figure 4 is a schematic diagram of a driving structure of a display device provided in the first embodiment of the present application;

[0031] Figure 5 1 is a schematic diagram of the process steps of the display method of the display device provided by the first embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the coordination structure between the light board and the pixel unit of the display panel provided in the second embodiment of the present application.

[0033] Among them, 10, display device; 100, lamp board; 110, substrate; 120, lamp bead combination; 121, first lamp bead combination; 122, second lamp bead combination; 123, first lamp bead; 124, second lamp bead; 125, third lamp bead; 126, fourth lamp bead; 130, drive line; 140, first switch; 150, second switch; 160, third switch; 170, fourth switch; 180, first control signal line; 190, second control signal line; 200, black isolation structure; 300, display panel; 310, pixel unit; 311, first row pixel unit; 312, second row pixel unit; 313, third row pixel unit; 314, fourth row pixel unit; 315, fifth row pixel unit; 400, drive module; 410, flexible circuit board; 420, LED control card. DETAILED DESCRIPTION

[0034] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative. However, the present application can be implemented in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0035] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, features defined as "first" and "second" may explicitly or implicitly include one or more of such features; "multiple" means two or more. In addition, terms indicating orientation or positional relationships such as "up", "down", "left", "right", "second direction", and "first direction" are based on the orientation or relative positional relationships shown in the accompanying drawings. They are only simplified descriptions for the convenience of describing this application, and do not indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] The present application is described in detail below with reference to the accompanying drawings and optional embodiments.

[0037] First embodiment

[0038] Figure 1 This is a schematic diagram of the structure of the light board provided in the first embodiment of the present application. Figure 1 As shown, the present application discloses a lamp board 100, including a substrate 110 and a plurality of lamp bead combinations 120, and the plurality of lamp bead combinations 120 are arranged in an array on the substrate 110; the lamp bead combination 120 includes a first lamp bead combination 121 and a second lamp bead combination 122, the first lamp bead combination 121 includes a first lamp bead 123 and a second lamp bead 124 arranged adjacent to each other, and the second lamp bead combination 122 includes a third lamp bead 125 and a fourth lamp bead 126 arranged adjacent to each other, wherein, within the current frame time, the first lamp bead 123 and the third lamp bead 125 are driven to emit light at the same time, and within the next frame time, the second lamp bead 124 and the fourth lamp bead 126 are driven to emit light at the same time; the color of the light emitted by the first lamp bead 123, the color of the light emitted by the second lamp bead 124, the color of the light emitted by the third lamp bead 125 and the color of the light emitted by the fourth lamp bead 126 are all different.

[0039] Compared with the prior art solution in which an LCD having multiple sub-pixels only displays the color of one sub-pixel in each frame, the lamp board 100 of the present application includes a substrate 110 and multiple lamp bead combinations 120, the lamp bead combination 120 including a first lamp bead combination 121 and a second lamp bead combination 122, the first lamp bead combination 121 including adjacently arranged first lamp bead 123 and second lamp bead 124, the second lamp bead combination 122 including adjacently arranged third lamp bead 125 and fourth lamp bead 126, wherein, within the current frame time, the first lamp bead 123 and the third lamp bead 125 are driven to emit light at the same time, and within the next frame time, the second lamp bead 124 and the fourth lamp bead 126 are driven to emit light at the same time; the color of the light emitted by the first lamp bead 123, the color of the light emitted by the second lamp bead 124, the color of the light emitted by the third lamp bead 125 and the color of the light emitted by the fourth lamp bead 126 are all different; that is, it only takes two frames of time to complete the driving and emitting of the four-color lamp beads, saving half the time, thereby reducing the refresh rate and ensuring the display effect.

[0040] Among them, such as Figure 1 As shown, the lamp board 100 also includes multiple driving lines 130, a first switch 140, a second switch 150, a third switch 160, a fourth switch 170, a first control signal line 180 and a second control signal line 190. Each of the driving lines 130 is respectively connected to the control end of the first switch 140, the control end of the second switch 150, the control end of the third switch 160 and the control end of the fourth switch 170 in a one-to-one correspondence. The output end of the first switch 140 and the output end of the third switch 160 are connected to the first control signal line 180, and the output end of the second switch 150 and the output end of the fourth switch 170 are connected to the second control signal line 190; the first switch 140 is connected to the first lamp bead 123, the second switch 150 is connected to the second lamp bead 124, the third switch 160 is connected to the third lamp bead 125, and the fourth switch 170 is connected to the fourth lamp bead 126. The first switch 140, the second switch 150, the third switch 160 and the fourth switch 170 can be opened respectively through multiple driving lines 130, and then the first control signal line 180 is used to control the opening of the first lamp bead 123 or the second lamp bead 124, and the second control signal line 190 is used to control the opening of the third lamp bead 125 or the fourth lamp bead 126, so as to achieve driving the first lamp bead 123 and the third lamp bead 125 to turn on at the same time within the current frame time, and driving the second lamp bead 124 and the fourth lamp bead 126 to turn on at the same time within the next frame time.

[0041] Moreover, the more difficult the manufacturing process of the complex lamp bead combination 120 is in the miniled lamp bead manufacturing process, the lower the yield and production capacity will be, and the higher the requirements for the manufacturer will be. Therefore, changing the four-color lamp bead combination 120 to be driven separately can effectively reduce the difficulty of the process. In addition, the four-color lamp bead combination 120 is more difficult to control. Although there is only one data line connected to the lamp bead, it is more difficult to choose which color of the four colors of lamp beads to display than to control only two colors of lamp beads to display. Therefore, the control of the two-color lamp bead combination 120 is easier.

[0042] Specifically, the lamp bead combination 120 of the lamp board 100 includes red light lamp beads R, blue light lamp beads B, green light lamp beads G and white light lamp beads W, wherein the first lamp bead 123 can be a red light lamp bead, the second lamp bead 124 can be a blue light lamp bead, the third lamp bead 125 can be a green light lamp bead, and the fourth lamp bead 126 can be a white light lamp bead. Since the human eye is more sensitive to green light G, that is, when the brightness of the four-color lamp beads is consistent, the human eye is more likely to observe the green light G, and the eye feels that the green light G is brighter. Similarly, white light W is also easier for the human eye to recognize. If it is a combination of RG and BW, the first frame will be bright R and B, and the second frame will be bright G and W. However, the second frame G and W are easier to be observed by the human eye, and the second frame will feel brighter. Then there may be flickering when switching between odd and even frames. Therefore, the arrangement order of the lamp beads in this embodiment is red, blue, green, white or red, white, green, blue, so that regardless of whether it is an odd or even frame, the brightness of the light emitted by the two colors of lamp beads can be almost the same, so as to avoid the phenomenon of screen flickering when switching, thereby ensuring the display effect.

[0043] In this way, in the first frame time, the driving line 130 is turned on, and the lamp bead combination 120z1, z3, z5...z3849 displays R, z2, z4, z6...z3840 displays B, and then displays line by line until 2160 lines; in the second frame time, the driving line 130 is turned on, the lamp bead combination 120z1, z3, z5...z3849 displays G, z2, z4, z6...z3840 displays W, and thus the four colors R, B, G, and W are displayed in two frames, thereby improving the refresh rate and saving half the time compared to the original color sequential method.

[0044] The light board 100 is divided into a plurality of light board 100 areas. Within each light board 100 area, the first lamp beads 123 and the third lamp beads 125 are driven to emit light simultaneously during a current frame time, and the second lamp beads 124 and the fourth lamp beads 126 are driven to emit light simultaneously during a next frame time. This improves the working efficiency of the light board 100 by simultaneously driving the two-color lamp beads in a plurality of light board 100 areas. Each light board 100 area may include a plurality of rows of the lamp bead assemblies 120.

[0045] Figure 2 This is a schematic diagram of the cross-sectional structure of the light board provided in the first embodiment of the present application. Figure 2 As shown, the lamp board 100 also includes a black isolation structure 200, and the black isolation structure 200 is arranged between the second lamp bead 124 and the third lamp bead 125. In the current frame time, the red lamp bead and the green lamp bead are driven to emit light at the same time. If there is no black isolation structure 200 between the red lamp bead and the green lamp bead, the red light will diverge to the surroundings, and the green light will also diverge to the surroundings, so that the green light and the red light will produce mixed light before reaching the liquid crystal. Then, when the liquid crystal is deflected, different lights may run to the side and be observed by the human eye, eventually forming mixed colors, resulting in color deviation and display failure. Therefore, this design can ensure that all lights of lamp beads of different colors are independently emitted before passing through the liquid crystal, so that mixed colors are produced after passing through the liquid crystal.

[0046] The black isolation structure 200 can be formed by attaching a black polyester film (PET) between the RB and GW lamp bead combinations 120 or between the RW and GB lamp bead combinations 120 to isolate the light. Of course, the black isolation structure 200 can also be formed by etching a black matrix. Because the black matrix uses an etching process, the length, height, and other dimensions can be more accurately controlled. At the same time, the black matrix has a lifespan far exceeding that of black PET film, making it an excellent material for solving color mixing problems. The specific design depends on actual production and is not limited here.

[0047] The width of the black isolation structure 200 is equal to the distance between the second lamp bead 124 and the third lamp bead 125; and the height of the black isolation structure 200 is consistent with the height of both the second lamp bead 124 and the third lamp bead 125. This completely fills the gap between the second and third lamp beads 124, 125, preventing light leakage. It also completely isolates the light from the second and third lamp beads 124, 125, ensuring that as much light as possible reaches the display surface of the display panel 300.

[0048] Figure 3is a schematic cross-sectional view of the display device provided in the first embodiment of the present application. Figure 3 As shown, this embodiment further discloses a display device 10, including a display panel 300 and the above-mentioned lamp board 100. No color filter is provided in the display panel 300. The display panel 300 is arranged opposite to the lamp board 100, and the lamp board 100 provides a backlight source for the display panel 300. The display panel 300 includes a plurality of pixel units 310 arranged in an array. The lamp board 100 includes a plurality of lamp bead assemblies 120 arranged in an array. A row of the lamp bead assemblies 120 is corresponding to a row of the pixel units 310. The lamp bead assemblies 120 include a first lamp bead assembly 121 and a second lamp bead assembly 122. The first lamp bead assembly 121 includes first and second lamp bead 123 and 124 arranged adjacent to each other. The second lamp bead assembly 122 includes third and fourth lamp bead 125 and 126 arranged adjacent to each other.

[0049] In the current frame time, the first lamp beads 123 and the third lamp beads 125 in a row of the lamp bead combination 120 are driven to emit light simultaneously, and the pixel units 310 corresponding to the first lamp beads 123 and the third lamp beads 125 control the liquid crystal to deflect and transmit light;

[0050] In the next frame time, the second lamp beads 124 and the fourth lamp beads 126 in a row of the lamp bead combination 120 are driven to emit light simultaneously, and the pixel units 310 corresponding to the second lamp beads 124 and the fourth lamp beads 126 control the liquid crystal to deflect and transmit light.

[0051] In this way, the liquid crystal deflection can be controlled to allow the light of the lamp beads to pass through the area where display is required, and there is no need to control the liquid crystal deflection when display is not required. Figure 4 This is a schematic diagram of the driving structure of the display device 10 provided in the first embodiment of the present application. The driving principle is shown in FIG. Figure 4As shown: the display device 10 also includes an LED control card 420, a flexible circuit board 410, a driving module 400 and a voltage regulation module. The driving module 400 and the voltage regulation module are connected by signal. The LED control card 420 is connected to the display panel 300. The LED control card 420 and the light board 100 can be connected through the flexible circuit board 410. The timing of the control signal from the LED control card 420 to the liquid crystal is consistent with the control signal of the light board 100. The LED control card 420 sends the control signal of the current frame to the multiple driving lines 130 of the light board 100 through the driving module 400. Each of the driving lines 130 turns on the first lamp bead 12 through the first control signal line 180. 3. Turn on the third lamp bead 125 through the second control signal line 190, wherein the control voltage signals of the first lamp bead 123 and the third lamp bead 125 can be different. When the first lamp bead 123 and the third lamp bead 125 receive the control signal, due to the internal line impedance, they will feed back the signal to the driving module 400, and the voltage will be adjusted by the voltage regulation module and then output again. Similarly, when the LED control card 420 sends the control signal of the next frame through the driving module 400 to the multiple driving lines 130 of the lamp board 100, each of the driving lines 130 turns on the second lamp bead 124 through the first control signal line 180, and turns on the fourth lamp bead 126 through the second control signal line 190.

[0052] Figure 5 : is a schematic diagram of the process steps of the display method of the display device provided by the first embodiment of the present application, such as Figure 5 As shown, the present application also discloses a display method of a display device 10, comprising the steps of:

[0053] S1: The light board 100 receives the current frame time signal;

[0054] S2: The driving lines 130 of the first row of the light board 100 drive the first control signal lines 180 to control the first lamp beads 123 to emit light;

[0055] S3: the driving line 130 of the first row of the light board 100 drives the second control signal line 190 to control the third lamp bead 125 to emit light;

[0056] S4: The pixel unit 310 of the display panel 300 drives the liquid crystal corresponding to the first lamp bead 123 and the liquid crystal corresponding to the third lamp bead 125 to deflect simultaneously, so that the light emitted by the first lamp bead 123 and the light emitted by the third lamp bead 125 pass through the liquid crystal to display the corresponding pixel image;

[0057] S5: the light board 100 receives the next frame time signal;

[0058] S6: The driving lines 130 of the first row of the light board 100 drive the first control signal lines 180 to control the second lamp beads 124 to emit light;

[0059] S7: The driving lines 130 of the first row of the light board 100 drive the second control signal lines 190 to control the fourth lamp beads 126 to emit light;

[0060] S8: The pixel unit 310 of the display panel 300 drives the liquid crystal corresponding to the second lamp bead 124 and the liquid crystal corresponding to the fourth lamp bead 126 to deflect simultaneously, so that the light emitted by the second lamp bead 124 and the light emitted by the fourth lamp bead 126 pass through the liquid crystal to display the corresponding pixel image;

[0061] S9: This process is analogous to the above, until the first lamp beads 123 , the second lamp beads 124 , the third lamp beads 125 and the fourth lamp beads 126 in the last row of the lamp board 100 are driven to emit light, so as to complete the image display of the entire display panel 300 .

[0062] Among them, in the current frame time signal, the light transmitted through the pixel unit 310 of the first lamp bead 123 corresponding to the display panel 300 is red light, and the light transmitted through the pixel unit 310 of the third lamp bead 125 corresponding to the display panel 300 is green light. In the next frame time signal, the light transmitted through the pixel unit 310 of the second lamp bead 124 corresponding to the display panel 300 is blue light, and the light transmitted through the pixel unit 310 of the fourth lamp bead 126 corresponding to the display panel 300 is white light.

[0063] Second embodiment:

[0064] Figure 6 : is a schematic diagram of the structure of the light board and the pixel unit 310 of the display panel provided in the second embodiment of the present application, as shown in FIG. Figure 6 As shown, as the second embodiment of the present application, this embodiment is different from the first embodiment in that a row of the lamp bead assembly 120 is correspondingly arranged with the first row of pixel units 311, the second row of pixel units 312, the third row of pixel units 313, the fourth row of pixel units 314 and the fifth row of pixel units 315;

[0065] In the current frame time, the first lamp beads 123 and the third lamp beads 125 in a row of the lamp bead combination 120 are driven to emit light simultaneously, first driving the pixel units 310 corresponding to the first lamp beads 123 and the third lamp beads 125 in the first row to control the deflection and light transmission of the liquid crystal, then driving the pixel units 310 corresponding to the first lamp beads 123 and the third lamp beads 125 in the second row to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units 310 in five rows corresponding to the first lamp beads 123 and the third lamp beads 125;

[0066] In the next frame time, the second lamp beads 124 and the fourth lamp beads 126 in a row of the lamp bead combination 120 are driven to emit light at the same time, and the pixel units 310 corresponding to the second lamp beads 124 and the fourth lamp beads 126 in the first row are driven to control the deflection and light transmission of the liquid crystal, and then the pixel units 310 corresponding to the second lamp beads 124 and the fourth lamp beads 126 in the second row are driven to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units 310 corresponding to the second lamp beads 124 and the fourth lamp beads 126 in five rows.

[0067] Since the number of lamp bead combinations 120 used is very large, the difficulty in making the backlight panel 100 is also the greatest. Therefore, this embodiment can adopt a shared lamp bead combination 120 method. For example, a row still has 3840*2 lamp bead combinations 120, but a row of lamp bead combinations 120 can provide light for 5 rows of display. For example, when the first to fifth rows are displayed, the lamp bead combinations 120 in the first row are turned on, and the second row of lamp bead combinations 120 in the sixth to tenth rows are turned on. In this way, only 2160 / 5=432 rows of corresponding lamp bead combinations 120 are needed. In this way, when the same screen is displayed in the same area, such a solution can be adopted to achieve the purpose of reducing costs. Similarly, if you want to reduce the number of lamp bead combinations 120, you only need to increase the number of shared rows and increase the vertical size of the lamp bead combinations 120. The specific design can be based on actual conditions.

[0068] It should be noted that the limitations on the steps involved in this solution do not limit the order of the steps without affecting the implementation of the specific solution. The steps written in front can be executed first, later, or even simultaneously. As long as this solution can be implemented, it should be deemed to fall within the scope of protection of this application.

[0069] It should be noted that the inventive concept of this application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the various embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the various embodiments or technical features are combined, the original technical effects will be enhanced.

[0070] The above content is a further detailed description of the present application in conjunction with specific optional implementation methods, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, they can make several simple deductions or substitutions without departing from the concept of the present application, which should be considered to fall within the scope of protection of the present application.

Claims

1. A light board, comprising a substrate and a plurality of lamp beads, wherein the plurality of lamp beads are arranged in an array on the substrate; characterized in that: The lamp bead combination includes a first lamp bead combination and a second lamp bead combination, the first lamp bead combination includes a first lamp bead and a second lamp bead arranged adjacent to each other, and the second lamp bead combination includes a third lamp bead and a fourth lamp bead arranged adjacent to each other, wherein, within the current frame time, the first lamp bead and the third lamp bead are driven to emit light at the same time, and within the next frame time, the second lamp bead and the fourth lamp bead are driven to emit light at the same time; the color of the light emitted by the first lamp bead, the color of the light emitted by the second lamp bead, the color of the light emitted by the third lamp bead and the color of the light emitted by the fourth lamp bead are all different.

2. The light board according to claim 1, characterized in that: The light panel further includes a plurality of driving lines, a first switch, a second switch, a third switch, a fourth switch, a first control signal line, and a second control signal line, each of the driving lines being connected to a control end of the first switch, a control end of the second switch, a control end of the third switch, and a control end of the fourth switch, respectively, the output end of the first switch and the output end of the third switch being connected to the first control signal line, and the output end of the second switch and the output end of the fourth switch being connected to the second control signal line; The first switch is connected to the first lamp bead, the second switch is connected to the second lamp bead, the third switch is connected to the third lamp bead, and the fourth switch is connected to the fourth lamp bead.

3. The light board according to claim 1, wherein: The first lamp bead includes a red light lamp bead, the second lamp bead includes a blue light lamp bead, the third lamp bead includes a green light lamp bead, and the fourth lamp bead includes a white light lamp bead.

4. The light board according to claim 3, characterized in that: The lamp board further includes a black isolation structure, and the black isolation structure is arranged between the second lamp bead and the third lamp bead.

5. The light board according to claim 4, characterized in that: The width of the black isolation structure is equal to the distance between the second lamp bead and the third lamp bead; the height of the black isolation structure is consistent with the height of the second lamp bead and the height of the third lamp bead.

6. The light board according to claim 1, wherein: The light board is divided into a plurality of light board areas. In each of the light board areas, the first lamp bead and the third lamp bead are driven to emit light at the same time during a current frame time, and the second lamp bead and the fourth lamp bead are driven to emit light at the same time during a next frame time.

7. A display device, characterized in that: A device comprising a display panel and a light board according to any one of claims 1 to 6, wherein no color filter is provided in the display panel, the display panel and the light board are arranged opposite to each other, and the light board provides a backlight source for the display panel; The display panel includes a plurality of pixel units arranged in an array, the light board includes a plurality of lamp bead assemblies arranged in an array, and a row of the lamp bead assemblies is arranged corresponding to at least one row of the pixel units; the lamp bead assemblies include a first lamp bead assembly and a second lamp bead assembly, the first lamp bead assembly includes first and second lamp beads arranged adjacent to each other, and the second lamp bead assembly includes third and fourth lamp beads arranged adjacent to each other; In a current frame time, the first lamp bead and the third lamp bead in a row of the lamp bead combination are driven to emit light simultaneously, and the pixel units corresponding to the first lamp bead and the third lamp bead control the liquid crystal to deflect and transmit light; In the next frame time, the second lamp beads and the fourth lamp beads in a row of the lamp bead combination are driven to emit light simultaneously, and the pixel units corresponding to the second lamp beads and the fourth lamp beads control the liquid crystal deflection and light transmission.

8. The display device according to claim 7, wherein: One row of the lamp bead combinations is correspondingly arranged with five rows of the pixel units; During the current frame time, the first lamp bead and the third lamp bead in a row of the lamp bead combination are driven to emit light simultaneously, first driving the pixel units corresponding to the first and third lamp beads in the first row to control the deflection and light transmission of the liquid crystal, then driving the pixel units corresponding to the first and third lamp beads in the second row to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units corresponding to the first and third lamp beads in five rows; In the next frame time, the second lamp bead and the fourth lamp bead in a row of the lamp bead combination are driven to emit light at the same time, and the pixel units corresponding to the second lamp bead and the fourth lamp bead in the first row are driven to control the deflection and light transmission of the liquid crystal, and then the pixel units corresponding to the second lamp bead and the fourth lamp bead in the second row are driven to control the deflection and light transmission of the liquid crystal, and so on, to complete the deflection and light transmission of the liquid crystal corresponding to the pixel units corresponding to the second lamp bead and the fourth lamp bead in five rows.

9. A display method of a display device, characterized in that: Including steps: The light board receives the current frame time signal; The driving lines of the first row of the light board drive the first control signal lines to control the first lamp beads to emit light; The driving line of the first row of the light board drives the second control signal line to control the third lamp bead to emit light; The pixel unit of the display panel drives the liquid crystal corresponding to the first lamp bead and the liquid crystal corresponding to the third lamp bead to deflect simultaneously, so that the light emitted by the first lamp bead and the light emitted by the third lamp bead pass through the liquid crystal to display the corresponding pixel image; The light board receives a next frame time signal; The driving line of the first row of the light board drives the first control signal line to control the second lamp beads to emit light; The driving line of the first row of the light board drives the second control signal line to control the fourth lamp bead to emit light; The pixel unit of the display panel drives the liquid crystal corresponding to the second lamp bead and the liquid crystal corresponding to the fourth lamp bead to deflect simultaneously, so that the light emitted by the second lamp bead and the light emitted by the fourth lamp bead pass through the liquid crystal to display the corresponding pixel image; The same process is repeated until the first lamp bead, the second lamp bead, the third lamp bead and the fourth lamp bead in the last row of the lamp board are driven to emit light, so as to complete the picture display of the entire display panel.

10. The display method of the display device according to claim 9, wherein: In the current frame time signal, the light transmitted through the pixel unit of the first lamp bead corresponding to the display panel is red light, and the light transmitted through the pixel unit of the third lamp bead corresponding to the display panel is green light. In the next frame time signal, the light transmitted through the pixel unit of the second lamp bead corresponding to the display panel is blue light, and the light transmitted through the pixel unit of the fourth lamp bead corresponding to the display panel is white light.

Images