Liquid crystal display device and driving method thereof

Abstract

The present disclosure provides a liquid crystal display device and a driving method thereof. The liquid crystal display device comprises a display panel, a time sequence control module and a plurality of driving modules. The display panel comprises a plurality of display blocks. The time sequence control module is used for simultaneously generating a plurality of time sequence control signals. The plurality of driving modules are connected between the time sequence control module and the display panel and respectively receive the plurality of time sequence control signals. Wherein at least one of the plurality of driving modules outputs a plurality of scanning signal groups to the plurality of display blocks according to at least one of the plurality of time sequence control signals. Wherein the plurality of driving modules respectively output a plurality of data signal groups to the plurality of display blocks according to the plurality of time sequence control signals, so that the plurality of display blocks are driven by the plurality of scanning signal groups and the plurality of data signal groups to display an image. Therefore, the effect of short imaging time can be achieved.

Description

Technical Field

[0001] This disclosure relates to a liquid crystal display device and its driving method, and particularly to a cholesterol liquid crystal display device with a short imaging time and its driving method. Background Technology

[0002] While existing Cholesteric Liquid Crystal Displays (ChLCDs) have the advantage of low power consumption, their disadvantages include slow imaging speed (i.e., long imaging time), making it impossible to present images (or screens) in real time and quickly. This can easily affect the user's viewing experience, making it difficult to apply Cholesteric Liquid Crystal Displays to dynamic image display. Therefore, they can only be used for static display.

[0003] Various driving methods have been developed for cholesteric liquid crystal displays (LCDs), such as the relatively fast Dynamic Drive Scheme (DDS) and the relatively slow Pulse-Width Modulation (PWM) driving method. Each of these methods has its own advantages and disadvantages. For example, DDS, due to its narrow working area, makes it difficult to control the chromaticity of the cholesteric liquid crystal. Furthermore, DDS is affected by environmental conditions (such as temperature), material properties, and driving conditions, resulting in poor color reproduction. Although PWM driving can significantly improve upon the problems of DDS, its imaging time still cannot meet the requirements of dynamic image display, making it unsuitable for products with short imaging time requirements. Therefore, there is currently a lack of a fast-imaging cholesteric liquid crystal display and its driving method on the market, and related manufacturers are seeking solutions. Summary of the Invention

[0004] Therefore, the purpose of this disclosure is to provide a liquid crystal display device and its driving method, which divides a display panel into multiple display blocks and transmits multiple scanning signal groups to the multiple display blocks by at least one of multiple driving modules, so as to perform driving imaging of multiple blocks simultaneously or with a small time difference, thereby shortening the overall imaging time of the display panel.

[0005] According to one embodiment of this disclosure, a liquid crystal display device is provided, comprising a display panel, a timing control module, and a plurality of driving modules. The display panel includes a plurality of display blocks. The timing control module is used to simultaneously generate a plurality of timing control signals. The plurality of driving modules are connected between the timing control module and the display panel, and respectively receive the plurality of timing control signals. At least one of the plurality of driving modules outputs a plurality of scan signal groups to the plurality of display blocks according to at least one of the plurality of timing control signals. The plurality of driving modules respectively outputs a plurality of data signal groups to the plurality of display blocks according to the plurality of timing control signals, so that the plurality of display blocks are driven by the plurality of scan signal groups and the plurality of data signal groups to display an image.

[0006] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are coupled between the second driving module and the first display block, and receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block. The plurality of second scan lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit another of the plurality of scan signal groups to the second display block. The plurality of first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the plurality of data signal groups to the first display block. The plurality of second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least another of the plurality of data signal groups to the second display block. This one of the plurality of scan signal groups is independent of the other one of the plurality of scan signal groups.

[0007] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are coupled to the second driving module, the first display block, and the second display block, and receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block and the second display block. The plurality of second scan lines are coupled to the second driving module, the first display block, and the second display block, and receive from the second driving module and transmit another of the plurality of scan signal groups to the first display block and the second display block. The plurality of first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the plurality of data signal groups to the first display block. The plurality of second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least another of the plurality of data signal groups to the second display block. The plurality of first scan lines and the plurality of second scan lines are arranged in an alternating pattern.

[0008] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are coupled between the second driving module and the first display block, and receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block. The plurality of second scan lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit another of the plurality of scan signal groups to the second display block. The plurality of first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the plurality of data signal groups to the first display block. The plurality of second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least another of the plurality of data signal groups to the second display block. The plurality of first scan lines are respectively connected in parallel to the plurality of second scan lines, and one of the plurality of scan signal groups is the same as another of the plurality of scan signal groups.

[0009] Other embodiments of the foregoing implementation are as follows: each of the aforementioned plurality of driving modules includes a plurality of driving chips, and one of the plurality of scan signal groups is generated by any one of the plurality of driving chips of the at least one of the plurality of driving modules.

[0010] Other embodiments of the aforementioned implementation are as follows: The aforementioned display panel is a passive matrix liquid crystal display panel.

[0011] Other embodiments of the aforementioned implementation are as follows: The aforementioned display panel is a cholesterol liquid crystal display panel.

[0012] According to another embodiment of this disclosure, a driving method for a liquid crystal display device is provided, which drives a liquid crystal display device. The liquid crystal display device includes a display panel, a timing control module, and a plurality of driving modules. The display panel includes a plurality of display blocks. The driving method for the liquid crystal display device includes simultaneously generating a plurality of timing control signals through the timing control module; receiving the plurality of timing control signals through the plurality of driving modules respectively; outputting a plurality of scan signal groups to the plurality of display blocks according to at least one of the plurality of timing control signals through at least one of the plurality of driving modules; and outputting a plurality of data signal groups to the plurality of display blocks according to the plurality of timing control signals through the plurality of driving modules respectively, so that the plurality of display blocks are driven by the plurality of scan signal groups and the plurality of data signal groups to display an image.

[0013] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are used to receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block. The plurality of second scan lines are used to receive from the second driving module and transmit another of the plurality of scan signal groups to the second display block. The plurality of first data lines are used to receive from the first driving module and transmit one of the plurality of data signal groups to the first display block. The plurality of second data lines are used to receive from the second driving module and transmit another of the plurality of data signal groups to the second display block. The first of the plurality of scan signal groups and the other of the plurality of scan signal groups are independent of each other.

[0014] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are used to receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block and the second display block. The plurality of second scan lines are used to receive from the second driving module and transmit another of the plurality of scan signal groups to the first display block and the second display block. The plurality of first data lines are used to receive from the first driving module and transmit one of the plurality of data signal groups to the first display block. The plurality of second data lines are used to receive from the second driving module and transmit another of the plurality of data signal groups to the second display block. The plurality of first scan lines and the plurality of second scan lines are arranged alternately.

[0015] Other embodiments of the aforementioned implementation are as follows: The aforementioned plurality of driving modules are respectively a first driving module and a second driving module. The aforementioned plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first data lines, and a plurality of second data lines. The plurality of first scan lines are used to receive from the second driving module and transmit one of the plurality of scan signal groups to the first display block. The plurality of second scan lines are used to receive from the second driving module and transmit another of the plurality of scan signal groups to the second display block. The plurality of first data lines are used to receive from the first driving module and transmit one of the plurality of data signal groups to the first display block. The plurality of second data lines are used to receive from the second driving module and transmit another of the plurality of data signal groups to the second display block. The plurality of first scan lines are respectively connected in parallel with the plurality of second scan lines, and the first scan line in each of the plurality of scan signal groups is the same as the second scan line in each of the plurality of scan signal groups.

[0016] Other embodiments of the foregoing implementation are as follows: each of the aforementioned plurality of driving modules includes a plurality of driving chips, and one of the plurality of scan signal groups is generated by any one of the plurality of driving chips of the at least one of the plurality of driving modules.

[0017] Other embodiments of the aforementioned implementation are as follows: The aforementioned display panel is a passive matrix liquid crystal display panel.

[0018] Other embodiments of the aforementioned implementation are as follows: The aforementioned display panel is a cholesterol liquid crystal display panel. Attached Figure Description

[0019] Figure 1A schematic diagram of a liquid crystal display device according to a first embodiment of the present disclosure is shown; Figure 2 Show Figure 1 A schematic diagram of the display panel, the first driving module, and the second driving module in a liquid crystal display device; Figure 3A A timing diagram of a scan signal in an existing cholesterol liquid crystal display is shown; Figure 3B Show Figure 1 A timing diagram of a scan signal in a liquid crystal display device; Figure 4 A schematic diagram showing the display panel, first driving module, and second driving module of a liquid crystal display device according to a second embodiment of the present disclosure; Figure 5 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to a third embodiment of the present disclosure; Figure 6 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to a fourth embodiment of the present disclosure; Figure 7 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to a fifth embodiment of the present disclosure; Figure 8 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to a sixth embodiment of the present disclosure; Figure 9 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to a seventh embodiment of the present disclosure; Figure 10 A schematic diagram showing a display panel, a first driving module, and a second driving module in a liquid crystal display device according to an eighth embodiment of this disclosure; and Figure 11 A flowchart illustrating a driving method for a liquid crystal display device according to a ninth embodiment of this disclosure is provided.

[0020] Explanation of reference numerals in the attached figures: 100, 200, 300, 400, 500, 600, 700, 800: Liquid Crystal Display Devices 110, 210, 310, 410, 510, 610, 710, 810: Display panel 111,211,311,411,511,611,711,811: First display block 112,212,312,412,512,612,712,812: Second display block 120: Timing Control Module 121, 122: Timing control signals 131,231,331,431,531,631,731,831: First drive module 132,232,332,432,532,632,732,832: Second drive module 713, 813: Third display block 714,814: Fourth display block 900: Driving method for liquid crystal display devices C1, C2, C3, C4, C5: Driver chips B11, B21, B31, B41, B51, B61, B71, B81: First communication bus B12, B22, B32, B42, B62, B72, B82: Second communication bus B23, B43, B73: Third communication bus B24, B44, B74: Fourth communication bus GL1, GL3, GL M-1 ,GL 11 ,GL 1M First scan line GL2, GL4, GL M ,GL 21 ,GL 2M Second scan line GL 31 ,GL 3M Third scan line GL 41 ,GL 4M Fourth scan line GS1, GS2: Scan signals S01, S02, S03, S04: Steps SL 11 ,SL 1N First data cable SL 21 ,SL 2N Second data line SS: Selection Phase NSS: Non-selective phase PX: pixel Detailed Implementation

[0021] Several embodiments of this disclosure will be described below with reference to the accompanying drawings. For clarity, many practical details will be set forth in the following description. However, it should be understood that these practical details should not be used to limit the scope of this disclosure. That is, in some embodiments of this disclosure, these practical details are not essential. Furthermore, for the sake of simplicity in the drawings, some conventionally used structures and elements will be shown in a simple schematic manner; and repeated elements may be denoted by the same reference numerals.

[0022] Furthermore, in this document, when a component (or unit or module, etc.) is "connected" to another component, it can mean that the component is directly connected to the other component, or that the component is indirectly connected to the other component, meaning that there is another component between the component and the other component. Only when it is explicitly stated that a component is "directly connected" to another component does it indicate that there is no other component between the component and the other component. The terms "first," "second," and "third" are only used to describe different components and do not limit the components themselves; therefore, "first component" can also be referred to as "second component." Moreover, the combinations of components / units / circuits in this document are not combinations generally known, conventional, or existing in this field. Whether the component / unit / circuit itself is existing cannot be used to determine whether its combination relationship is easily accomplished by someone of ordinary skill in the art.

[0023] Please see Figure 1 This illustrates a schematic diagram of a liquid crystal display device 100 according to a first embodiment of the present disclosure. Figure 1 As shown, the liquid crystal display device 100 includes a display panel 110, a timing control module 120, and multiple driving modules (not otherwise labeled). The display panel 110 includes multiple display blocks (not otherwise labeled). The timing control module 120 is used to simultaneously generate multiple timing control signals. The multiple driving modules are signal-connected between the timing control module 120 and the display panel 110, and respectively receive the multiple timing control signals. At least one of the multiple driving modules outputs multiple scan signal groups to the multiple display blocks according to at least one of the multiple timing control signals (i.e., the corresponding received timing control signal), and the multiple driving modules output multiple data signal groups to the multiple display blocks according to the multiple timing control signals, so that the multiple display blocks are driven by the multiple scan signal groups and the multiple data signal groups to display an image (or a screen). Therefore, the liquid crystal display device 100 disclosed herein utilizes independent scanning signal groups and independent data signal groups to simultaneously or with a small time difference perform multi-block driving imaging, thereby shortening the overall imaging time required for the display panel 110 to display images, and thus can be applied to dynamic image display. Figure 1 The number of display blocks and driver modules shown are merely examples and are not limited to this disclosure.

[0024] In some embodiments, the timing control module 120 may be a timing controller (TCON), which receives an image signal from an external device (not shown) and converts it into the signal format and timing instructions required by the driving panel. The main function of the timing control module 120 is to convert the image signal and synchronously transmit it to each driving module to ensure that the display panel 110 can display the image normally. Each driving module may include at least one driver IC. The timing of the scan signal and data signal output from the driver IC can be controlled by the timing control signal generated by the timing controller. Furthermore, when the driving module is composed of multiple driver ICs, the timing of the multiple scan signals and multiple data signals output from the driver ICs can be synchronized according to the timing control signal generated by the timing controller.

[0025] Please continue reading. Figure 2 It shows Figure 1 A schematic diagram of the display panel 110, the first driving module 131, and the second driving module 132 in the liquid crystal display device 100. (See attached diagram.) Figure 2 As shown, the display panel 110 can have two display blocks, which can be a first display block 111 and a second display block 112, respectively. The area where the first display block 111 and the second display block 112 are located is an active area of ​​the display panel 110, and it has the function of displaying images. Each of the first display block 111 and the second display block 112 can be composed of multiple pixels PX, and the pixels PX of the first display block 111 and the second display block 112 can form a pixel array. Each pixel PX contains at least one display element and has the function of displaying a specified grayscale corresponding to red, green, or blue. In some embodiments, the display panel 110 can be a cholesterol liquid crystal display panel in a cholesterol liquid crystal display (ChLCD), and it can also be a passive matrix liquid crystal display panel. The display element of the pixel PX can be a cholesterol liquid crystal element. For clarity, Figure 2 The text indicates only a portion of the pixels PX to represent all pixels PX, and other elements are similarly indicated, such as the data lines and scan lines described in the following paragraphs.

[0026] For example Figure 2As shown, the number of driving modules can be two, which can be a first driving module 131 and a second driving module 132, respectively, and the first driving module 131 and the second driving module 132 are located on opposite sides of the display panel 110 (i.e., Figure 2 (The upper and lower sides of the display panel 110). The first driving module 131 includes two driving chips C1 and C2, and receives a timing control signal 121 from the timing control module 120. The driving chips C1 and C2 output two data signal groups according to the timing control signal 121, and each of the aforementioned data signal groups may contain multiple data signals.

[0027] The second driving module 132 includes three driving chips C3, C4, and C5, and receives a timing control signal 122 from the timing control module 120. Driving chips C3, C4, and C5 each output three data signal groups according to the timing control signal 122, and each of the aforementioned data signal groups may contain multiple data signals. Furthermore, the driving chip C3, located near the left side of the display panel 110, can also output a scan signal group according to the timing control signal 122, while the driving chip C5, located near the right side of the display panel 110, can also output another scan signal group according to the timing control signal 122, and each of the aforementioned scan signal groups may contain multiple scan signals.

[0028] Viewed from top to bottom, the display panel 110 may further include multiple first scan lines GL located in the first display block 111. 11 ~GL 1M and multiple second scan lines GL located in the second display block 112 21 ~GL 2M Where M is a positive integer greater than 1. Viewed from left to right, the display panel 110 may further include multiple first data lines SL located in the first display block 111. 11 ~SL 1N and multiple second data lines SL located in the second display block 112 21 ~SL 2N , where N is a positive integer greater than 1. In some embodiments, the first scan line GL 11 ~GL 1M and the second scan line GL 21 ~GL 2M This can be referred to as the common (COM) electrode, while the first data line SL... 11 ~SL 1N and the second data line SL 21 ~SL 2N This can be referred to as a segmented electrode (SEG). Furthermore, multiple intersections of scan lines and data lines define pixels PX in the first display block 111 and the second display block 112.

[0029] First scan line GL 11 ~GL 1M The second drive module 132 is coupled to the first display block 111, and receives and transmits scan signal groups from the second drive module 132 to the first display block 111 via a first communication bus B11. Specifically, the first scan line GL 11 ~GL 1M First, the scan signal group is received from the driver chip C3 in the second driver module 132 via the first communication bus B11, and then the scan signal group is transmitted to the pixel PX in the first display block 111. Second scan line GL 21 ~GL 2M It is coupled between the second driving module 132 and the second display block 112, and receives and transmits another group of scan signals from the second driving module 132 to the second display block 112 via a second communication bus B12. Specifically, the second scan line GL 21 ~GL 2M First, another scan signal is received from the driver chip C5 in the second driver module 132 via the second communication bus B12, and then another scan signal group is transmitted to the pixel PX in the second display block 112.

[0030] First data cable SL 11 ~SL 1N It is coupled between the first driving module 131 and the first display block 111, and receives and transmits the aforementioned two data signal groups from the first driving module 131 to the first display block 111. Specifically, the first data line SL 11 ~SL 1N First, the two data signal groups are received from the driver chips C1 and C2 in the first driver module 131, and then transmitted to the pixel PX in the first display block 111. Second data line SL 21 ~SL 2N The second data line SL is coupled between the second driving module 132 and the second display block 112, and receives and transmits the aforementioned three data signal groups from the second driving module 132 to the second display block 112. Specifically, the second data line SL... 21 ~SL 2N First, the aforementioned three data signal groups are received from the driver chips C3, C4, and C5 in the second driver module 132, and then the aforementioned three data signal groups are transmitted to the pixel PX in the second display block 112.

[0031] It should be noted that the scan signal group received by the first display block 111 from the driver chip C3 and the scan signal group received by the second display block 112 from the driver chip C5 are independent of each other. Furthermore, the display panel 110 of the first embodiment is divided into upper and lower blocks. The first display block 111 and the second display block 112 each also have independent data signal groups. Therefore, the driving signals (i.e., scan signals and data signals) used for imaging can be transmitted simultaneously to the first display block 111 and the second display block 112. Thus, the overall imaging time required for the display panel 110 to display an image is significantly reduced compared to the single display block of a conventional cholesteric liquid crystal display.

[0032] Please continue reading. Figure 3A and Figure 3B ,in Figure 3A The timing diagram of a scan signal GS1 in a conventional cholesterol liquid crystal display is shown. Figure 3B Show Figure 1 The timing diagram of a scan signal GS2 in the liquid crystal display device 100. Specifically, Figure 3A This is a timing diagram showing the pulse voltages applied to multiple pixels in a pixel string when a scan operation (which includes a selection phase SS and a non-selection phase NSS) is performed on a pixel string in a pixel array. Figure 3B And so on.

[0033] like Figure 3A As shown, in the non-selection phase (NSS), the scan signal GS1 is applied to the non-selected scan lines 6 times. Taking the Dynamic Drive Scheme (DDS) and Pulse-Width Modulation (PWM) driving methods as examples, the scan signal GS1 is continuously supplied to the non-selected pixels until the single display block (i.e., the entire display panel) of the existing cholesteric liquid crystal display is scanned. Due to the continuous application of energy to the cholesteric liquid crystal in the pixels, the cholesteric liquid crystal is prone to a certain degree of state transition, causing the actual image color to deviate from the originally set color. Furthermore, both DDS and PWM driving methods scan the selected scan lines one by one, so the number of times energy is applied to each scan line when it is not selected varies. Therefore, existing cholesteric liquid crystal displays exhibit a certain degree of color uniformity. In other words, existing cholesteric liquid crystal displays are not divided into multiple display blocks (or display areas). The driver chip scans the scan lines on the entire display panel one by one and sends drive signals in sequence, resulting in uneven color performance and longer imaging time.

[0034] like Figure 3BAs shown, in the non-selection stage NSS, the scan signal GS2 is applied to the unselected scan lines in the first display block 111 (or the second display block 112) 3 times, which is significantly less than the corresponding number in existing cholesteric liquid crystal displays. Compared to a single display block in an existing cholesteric liquid crystal display, the number of unselected scan lines in each of the first display block 111 and the second display block 112 is reduced. Furthermore, compared to the total number of scan lines in an existing cholesteric liquid crystal display, the total number of scan lines in each of the first display block 111 and the second display block 112 is also relatively reduced. Therefore, the number of times the scan signal GS2 is applied to the unselected scan lines is also relatively reduced, ultimately reducing the phenomenon of uneven color performance. Thus, it can be seen that the display panel 110 of the liquid crystal display device 100 is divided into upper and lower blocks, which not only reduces the overall imaging time but also avoids the phenomenon of uneven imaging color, resulting in good imaging effect of the display panel 110. The following paragraphs, in conjunction with the accompanying drawings, will provide examples of other liquid crystal display devices 200, 300, 400, 500, 600, 700, and 800 that have multiple display blocks.

[0035] Figure 4 A schematic diagram showing the display panel 210, the first driving module 231, and the second driving module 232 of a liquid crystal display device 200 according to a second embodiment of this disclosure is provided. Figure 4 As shown, the display panel 210 can have two display blocks, and the number of driving modules can also be two. These two display blocks can be a first display block 211 and a second display block 212, and these two driving modules can be a first driving module 231 and a second driving module 232. The display panel 210, the first driving module 231, and the second driving module 232 are similar to the corresponding components in the liquid crystal display device 100 of the first embodiment; therefore, their similar internal structures and functions will not be described again.

[0036] The difference lies in the first scan line GL located in the first display block 211. 11 ~GL 1M The two ends are coupled to the driver chips C3 and C5 in the second driver module 232 via a first communication bus B21 and a second communication bus B22, respectively. This is for the second scan line GL located in the second display block 212. 21 ~GL 2M The two ends are coupled to the driver chips C3 and C5 in the second driver module 232 via a third communication bus B23 and a fourth communication bus B24, respectively. Therefore, the first scan line GL 11 ~GL 1MThe two ends of the signal receive and transmit corresponding scan signal groups from the driver chips C3 and C5 respectively to the pixel PX in the first display block 211, while the second scan line GL 21 ~GL 2M The two ends of the signal receive and transmit corresponding scan signal groups from the driver chips C3 and C5 respectively to the pixel PX in the second display block 212. In other words, the scan signal group transmitted to the first display block 211 can be generated by either or both of the driver chips C3 and C5 in the second driving module 232, and the same applies to the scan signal group transmitted to the second display block 212. Therefore, the liquid crystal display device 200 of the second embodiment utilizes independent data signal groups and scan signal groups from multiple trigger sources to simultaneously or with a small time difference perform driving imaging of multiple blocks, thereby rapidly supplying scan signals and further shortening the overall imaging time of the display panel 210.

[0037] Figure 5 A schematic diagram showing the display panel 310, the first driving module 331, and the second driving module 332 in a liquid crystal display device 300 according to a third embodiment of this disclosure is provided. Figure 5 As shown, the display panel 310 can have two display blocks, and the number of driving modules can also be two. These two display blocks can be a first display block 311 and a second display block 312, and these two driving modules can be a first driving module 331 and a second driving module 332. The display panel 310, the first driving module 331, and the second driving module 332 are similar to the corresponding components in the liquid crystal display device 100 of the first embodiment; therefore, their similar internal structures and functions will not be described again.

[0038] The difference lies in that the display panel 310 may include multiple scan lines, and these multiple scan lines are coupled to pixels PX in the first display block 311 and the second display block 312. Specifically, the multiple scan lines originate from... Figure 5 The display panel 310 is numbered GL1, GL2, ... GL from top to bottom. M-1 GL M It can be grouped into multiple first scan lines GL1, GL3, ... GL M-1 and multiple second scan lines GL2, GL4, ... GL M The first scan lines GL1, GL3, ... GL M-1 and the second scan lines GL2, GL4, ... GL M The numbers are arranged alternately, where M is a positive even number.

[0039] First scan lines GL1, GL3, ... GL M-1One end is coupled to the driver chip C3 in the second driver module 332 via a first communication bus B31, and the first scan lines GL1, GL3, ... GL M-1 The other end is coupled to the first display block 311 and the second display block 312. First scan lines GL1, GL3, ... GL M-1 One end receives and transmits the corresponding scan signal group from the driver chip C3 to the pixel PX in the first display block 311 and the second display block 312. The second scan lines GL2, GL4, ... GL M One end is coupled to the driver chip C5 in the second driver module 332 via a second communication bus B32, while the second scan lines GL2, GL4, ... GL M The other end is coupled to the first display block 311 and the second display block 312. Second scan lines GL2, GL4, ... GL M One end of the device receives and transmits the corresponding scan signal group from the driver chip C5 to the pixels PX in the first display block 311 and the second display block 312. In this way, the liquid crystal display device 300 of the third embodiment utilizes independent data signal groups and cross-mixed scan signals to simultaneously or with a small time difference perform driving imaging of multiple blocks, thereby shortening the overall imaging time of the display panel 310.

[0040] Figure 6 A schematic diagram showing the display panel 410, the first driving module 431, and the second driving module 432 in a liquid crystal display device 400 according to the fourth embodiment of this disclosure is provided. Figure 6 As shown, the display panel 410 can have two display blocks, and the number of driving modules can also be two. These two display blocks can be a first display block 411 and a second display block 412, and these two driving modules can be a first driving module 431 and a second driving module 432. The display panel 410, the first driving module 431, and the second driving module 432 are similar to the corresponding components in the liquid crystal display device 300 of the third embodiment; therefore, their similar internal structures and functions will not be described further.

[0041] The difference lies in the first scan lines GL1, GL3, ... GL M-1 The two ends are coupled to the driver chips C3 and C5 in the second driver module 432 via a first communication bus B41 and a second communication bus B42, respectively. The second scan lines GL2, GL4, ... GL M The two ends are coupled to the driver chips C3 and C5 in the second driver module 232 via a third communication bus B43 and a fourth communication bus B44, respectively. Therefore, the first scan lines GL1, GL3, ... GL M-1The two ends of the signal receive and transmit corresponding scan signal groups from the driver chips C3 and C5 respectively to the pixels PX in the first display block 411 and the second display block 412, while the second scan lines GL2, GL4, ... GL M The two ends of the signal receive and transmit corresponding scan signal groups from the driver chips C3 and C5 respectively to the pixels PX in the first display block 411 and the second display block 412. In other words, the signals are transmitted via the first scan lines GL1, GL3, ... GL M-1 The scan signal group transmitted to the first display block 411 can be generated by either or both of the driver chips C3 and C5 in the second driver module 432, and transmitted via the second scan lines GL2, GL4, ... GL M The same applies to the scan signal group transmitted to the second display block 412. In this way, the liquid crystal display device 400 of the fourth embodiment uses independent data signal groups, multiple trigger sources, and cross-mixed scan signal groups to simultaneously or with a small time difference to perform driving imaging of multiple blocks, thereby quickly supplying scan signals and further shortening the overall imaging time of the display panel 410.

[0042] Figure 7 A schematic diagram showing the display panel 510, the first driving module 531, and the second driving module 532 in a liquid crystal display device 500 according to the fifth embodiment of this disclosure is provided. Figure 7 As shown, the display panel 510 can have two display blocks, and the number of driving modules can also be two. These two display blocks can be a first display block 511 and a second display block 512, and these two driving modules can be a first driving module 531 and a second driving module 532. The display panel 510, the first driving module 531, and the second driving module 532 are similar to the corresponding components in the liquid crystal display device 100 of the first embodiment; therefore, their similar internal structures and functions will not be described again.

[0043] The difference lies in the first scan line GL 11 ~GL 1M Connected in parallel to the second scan line GL 21 ~GL 2M And via the first scan line GL 11 ~GL 1M The scan signal group transmitted to the first display block 511 and via the second scan line GL 21 ~GL 2M The scan signal groups transmitted to the second display block 512 are identical to each other. Specifically, for the first scan line GL located in the first display block 511... 11 ~GL 1MThe driver chip C3 in the second driver module 532 is coupled to the first display block 511, and receives and transmits scan signal groups from the driver chip C3 to the pixels PX in the first display block 511 via a first communication bus B51. The second scan line GL located in the second display block 512... 21 ~GL 2M The second driving module 532 is coupled between the driving chip C3 and the second display block 512, and the same scan signal group is received from the driving chip C3 and transmitted to the pixel PX in the second display block 512 via the first communication bus B51. In this way, the liquid crystal display device 500 of the fifth embodiment utilizes independent data signal groups and parallel scan signal groups to simultaneously or with a small time difference perform driving imaging of multiple blocks, thereby shortening the overall imaging time of the display panel 510.

[0044] Figure 8 A schematic diagram showing the display panel 610, the first driving module 631, and the second driving module 632 in a liquid crystal display device 600 according to the sixth embodiment of this disclosure is provided. Figure 8 As shown, the display panel 610 can have two display blocks, and the number of driving modules can also be two. These two display blocks can be a first display block 611 and a second display block 612, and these two driving modules can be a first driving module 631 and a second driving module 632. The display panel 610, the first driving module 631, and the second driving module 632 are similar to the corresponding components in the liquid crystal display device 500 of the fifth embodiment; therefore, their similar internal structures and functions will not be described again.

[0045] The difference lies in the first scan line GL located in the first display block 611. 11 ~GL 1M The two ends are coupled to the driver chips C3 and C5 in the second driver module 632 via a first communication bus B61 and a second communication bus B62, respectively. This is for the second scan line GL located in the second display block 612. 21 ~GL 2M The two ends are also coupled to the driver chips C3 and C5 in the second driver module 632 via the first communication bus B61 and the second communication bus B62, respectively. Therefore, the first scan line GL 11 ~GL 1M The two ends of the signal receive and transmit scan signal groups from the driver chips C3 and C5 respectively to the pixel PX in the first display block 611, while the second scan line GL 21 ~GL 2MThe two ends of the signal receive and transmit the same scan signal group from the driver chips C3 and C5 respectively to the pixel PX in the second display block 612. In other words, the scan signal group transmitted to the first display block 611 and the second display block 612 simultaneously can be generated by either or both of the driver chips C3 and C5 in the second driving module 632. Therefore, the liquid crystal display device 600 of the sixth embodiment utilizes independent data signal groups, multiple trigger sources, and parallel scan signal groups to simultaneously or with a small time difference perform driving imaging of multiple blocks, thereby rapidly supplying scan signals and further shortening the overall imaging time of the display panel 610.

[0046] Figure 9 A schematic diagram showing the display panel 710, the first driving module 731, and the second driving module 732 in a liquid crystal display device 700 according to the seventh embodiment of this disclosure is provided. Figure 9 As shown, the liquid crystal display device 700 includes a display panel 710 and a plurality of driving modules. The number of driving modules can be two, and these two driving modules can be a first driving module 731 and a second driving module 732, respectively. The display panel 710, the first driving module 731 and the second driving module 732 are similar to the corresponding components in the liquid crystal display device 100 of the first embodiment, so their similar internal structures and functions will not be described again.

[0047] The difference lies in the fact that the display panel 710 can have four display blocks, which can be a first display block 711, a second display block 712, a third display block 713, and a fourth display block 714. Furthermore, the display panel 710 can include multiple first scan lines GL located in the first display block 711. 11 ~GL 1M For multiple second scan lines GL located in the second display block 712 21 ~GL 2M For multiple third scan lines GL located in the third display block 713 31 ~GL 3M and multiple fourth scan lines GL located in the fourth display block 714 41 ~GL 4M Where M is a positive integer greater than 1. Furthermore, the display panel 710 may also include multiple first data lines SL located in the first display block 711. 11 ~SL 1N and multiple second data lines SL located in the second display block 712 21 ~SL 2N , where N is a positive integer greater than 1.

[0048] First scan line GL 11 ~GL 1MThe drive chip C1 in the first drive module 731 is coupled to the first display block 711, and the corresponding scan signal group is received from the drive chip C1 and transmitted to the pixel PX in the first display block 711 through a first communication bus B71.

[0049] Second scan line GL 21 ~GL 2M The drive chip C3 in the second drive module 732 is coupled to the second display block 712, and the corresponding scan signal group is received from the drive chip C3 and transmitted to the pixel PX in the second display block 712 through a second communication bus B72.

[0050] Third scan line GL 31 ~GL 3M The drive chip C2 in the first drive module 731 is coupled to the third display block 713, and the corresponding scan signal group is received from the drive chip C2 and transmitted to the pixel PX in the third display block 713 through a third communication bus B73.

[0051] Fourth scan line GL 41 ~GL 4M The drive chip C5 in the second drive module 732 is coupled to the fourth display block 714, and the corresponding scan signal group is received from the drive chip C5 and transmitted to the pixel PX in the fourth display block 714 through a fourth communication bus B74.

[0052] First data cable SL 11 ~SL 1N A portion of the data line is coupled between the driver chip C1 in the first driver module 731 and the first display block 711, and receives and transmits corresponding data signal groups from the driver chip C1 to the pixel PX in the first display block 711. First data line SL 11 ~SL 1N Another part is coupled between the driver chip C2 in the first driver module 731 and the third display block 713, and receives and transmits the corresponding data signal group from the driver chip C2 to the pixel PX in the third display block 713.

[0053] Second data cable SL 21 ~SL 2N A portion of the data line is coupled between the driver chips C3 and C4 in the second driver module 732 and the second display block 712, and receives and transmits corresponding data signal groups from the driver chips C3 and C4 to the pixels PX in the second display block 712. The second data line SL 21 ~SL 2NAnother part is coupled between the driver chips C4 and C5 in the first driver module 731 and the fourth display block 714, and receives and transmits the corresponding data signal groups from the driver chips C4 and C5 to the pixels PX in the fourth display block 714.

[0054] The multiple scan signal groups received by the first display block 711, the second display block 712, the third display block 713, and the fourth display block 714 are independent of each other, and each of the four display blocks also has an independent data signal group. Therefore, compared to the aforementioned embodiments, the liquid crystal display device 700 of the seventh embodiment divides the display panel 710 into more blocks and utilizes independent data signal groups and independent scan signal groups to simultaneously or with a small time difference perform driving imaging of multiple blocks, thereby further shortening the overall imaging time of the display panel 710.

[0055] Figure 10 A schematic diagram showing the display panel 810, the first driving module 831, and the second driving module 832 in a liquid crystal display device 800 according to the eighth embodiment of this disclosure is provided. Figure 10 As shown, the display panel 810 can have four display blocks and two driving modules. These four display blocks can be a first display block 811, a second display block 812, a third display block 813, and a fourth display block 814, respectively, while the two driving modules can be a first driving module 831 and a second driving module 832, respectively. The display panel 810, the first driving module 831, and the second driving module 832 are similar to the corresponding components in the liquid crystal display device 700 of the seventh embodiment; therefore, their similar internal structures and functions will not be described further.

[0056] The difference lies in the first scan line GL located in the first display block 811. 11 ~GL 1M With respect to the second scan line GL located in the second display block 812 21 ~GL 2M All are coupled to the driver chip C3 in the second driver module 832 via a first communication bus B81. This applies to the third scan line GL located in the third display block 813. 31 ~GL 3M With respect to the fourth scan line GL located in the fourth display block 814 41 ~GL 4M All are coupled to the driver chip C5 in the second driver module 832 through a second communication bus B82.

[0057] Therefore, the first scan line GL 11 ~GL 1M and the second scan line GL 21 ~GL 2MAll can receive and transmit the same scan signal group from the driver chip C3 to the pixels PX in the first display block 811 and the second display block 812. Similarly, the third scan line GL 31 ~GL 3M and the fourth scan line GL 41 ~GL 4M All can receive and transmit the same scan signal group from the driver chip C5 to the pixels PX in the third display block 813 and the fourth display block 814. In this way, the liquid crystal display device 800 of the eighth embodiment uses independent data signal groups and dual-drive parallel scan signal groups to perform multi-block driving imaging simultaneously or with a small time difference, thereby providing scan signals quickly and further shortening the overall imaging time of the display panel 810.

[0058] The following description only illustrates the application of the liquid crystal display device driving method 900 to the liquid crystal display device 100 of the first embodiment. However, the liquid crystal display device driving method 900 can also be applied to the liquid crystal display devices 200, 300, 400, 500, 600, 700, and 800 of the second to eighth embodiments in other embodiments.

[0059] Please refer to Figures 1, 2, and 11 together, among which... Figure 11 A flowchart is shown of a driving method 900 for a liquid crystal display device according to a ninth embodiment of the present disclosure. As shown in Figures 1, 2, and 11, the driving method 900 for the liquid crystal display device can be used to drive a liquid crystal display device 100 and includes the following steps S01, S02, S03, and S04.

[0060] Step S01 involves generating multiple timing control signals 121 and 122 simultaneously through a timing control module 120.

[0061] Step S02 involves receiving the multiple timing control signals 121 and 122 through multiple driving modules (i.e., the first driving module 131 and the second driving module 132).

[0062] Step S03 involves outputting multiple scan signal groups to multiple display blocks (i.e., first display block 111 and second display block 112) of a display panel 110 by at least one of the multiple driving modules (e.g., the second driving module 132) according to at least one of the multiple timing control signals 121 and 122 (e.g., timing control signal 122).

[0063] Step S04 involves the multiple driving modules (i.e., the first driving module 131 and the second driving module 132) outputting multiple data signal groups to the multiple display blocks (i.e., the first display block 111 and the second display block 112) according to the multiple timing control signals 121 and 122, so that the multiple display blocks are driven by the multiple scanning signal groups and the multiple data signal groups to display an image.

[0064] In summary, the liquid crystal display device and its driving method disclosed herein have the following advantages: First, the display panel is divided into multiple display blocks for driving imaging, and the driving signal sources on the display panel can be divided into multiple groups, thereby achieving simultaneous or small-time-difference driving imaging of multiple blocks, reducing imaging time and achieving a shorter imaging time. Second, the parallel scanning signal groups can be uniformly provided by the same driving chip. Compared with independently controlled scanning signal groups, using parallel scanning signal groups allows the display panel to use fewer signal lines, thereby reducing the number of channels used by the driving chip. Third, in addition to reducing the overall imaging time by using independent scanning signal groups, cross-mixed scanning signals, parallel scanning signal groups, and independent data signal groups, it can also avoid the phenomenon of uneven imaging colors, resulting in a good imaging effect for the display panel.

[0065] Although the present disclosure has been described above with reference to embodiments, it is not intended to limit the present disclosure. Any person skilled in the art may make various changes and modifications without departing from the concept and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the claims.

Claims

1. A liquid crystal display device, characterized in that, Include: A display panel containing multiple display blocks; A timing control module is used to simultaneously generate multiple timing control signals; and Multiple drive modules are connected between the timing control module and the display panel, and each receives the multiple timing control signals; Among them, at least one of the plurality of driving modules outputs a plurality of scanning signal groups to the plurality of display blocks according to at least one of the plurality of timing control signals; The plurality of driving modules output a plurality of data signal groups to the plurality of display blocks according to the plurality of timing control signals, so that the plurality of display blocks are driven by the plurality of scanning signal groups and the plurality of data signal groups to display an image.

2. The liquid crystal display device as claimed in claim 1, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are coupled between the second driving module and the first display block, and receive from the second driving module and transmit one of the multiple scan signal groups to the first display block; Multiple second scan lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit another of the multiple scan signal groups to the second display block; Multiple first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the multiple data signal groups to the first display block; and Multiple second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least one of the multiple data signal groups to the second display block; In this context, one of the plurality of scan signal groups is independent of the other of the plurality of scan signal groups.

3. The liquid crystal display device as claimed in claim 1, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are coupled to the second driving module, the first display block and the second display block, and receive from the second driving module and transmit one of the multiple scan signal groups to the first display block and the second display block; Multiple second scan lines are coupled to the second driving module, the first display block, and the second display block, and receive from the second driving module and transmit another of the multiple scan signal groups to the first display block and the second display block; Multiple first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the multiple data signal groups to the first display block; and Multiple second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least one of the multiple data signal groups to the second display block; The plurality of first scan lines and the plurality of second scan lines are arranged in an alternating pattern.

4. The liquid crystal display device as claimed in claim 1, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are coupled between the second driving module and the first display block, and receive from the second driving module and transmit one of the multiple scan signal groups to the first display block; Multiple second scan lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit another of the multiple scan signal groups to the second display block; Multiple first data lines are coupled between the first driving module and the first display block, and receive from the first driving module and transmit at least one of the multiple data signal groups to the first display block; and Multiple second data lines are coupled between the second driving module and the second display block, and receive from the second driving module and transmit at least one of the multiple data signal groups to the second display block; The plurality of first scan lines are connected in parallel to the plurality of second scan lines, and one of the plurality of scan signal groups is the same as the other of the plurality of scan signal groups.

5. The liquid crystal display device as claimed in claim 1, characterized in that, Each of the plurality of driving modules includes a plurality of driving chips, and one of the plurality of scan signal groups is generated by any one of the plurality of driving chips of the at least one of the plurality of driving modules.

6. The liquid crystal display device as claimed in claim 1, characterized in that, The display panel is a passive matrix liquid crystal display panel.

7. The liquid crystal display device as claimed in claim 1, characterized in that, The display panel is a cholesterol liquid crystal display panel.

8. A driving method for a liquid crystal display device, used to drive a liquid crystal display device, the liquid crystal display device comprising a display panel, a timing control module and a plurality of driving modules, the display panel comprising a plurality of display blocks, characterized in that, The driving method of the liquid crystal display device includes: This timing control module generates multiple timing control signals simultaneously. The plurality of timing control signals are received by the plurality of driving modules respectively; At least one of the plurality of driving modules outputs a plurality of scanning signal groups to the plurality of display blocks according to at least one of the plurality of timing control signals; as well as The multiple driving modules output multiple data signal groups to the multiple display blocks according to the multiple timing control signals, so that the multiple display blocks are driven by the multiple scanning signal groups and the multiple data signal groups to display an image.

9. The driving method for a liquid crystal display device as described in claim 8, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are used to receive from the second driving module and transmit one of the multiple scan signal groups to the first display block; Multiple second scan lines are used to receive from the second driving module and transmit another of the multiple scan signal groups to the second display block; Multiple first data lines are used to receive from the first driving module and transmit one of the multiple data signal groups to the first display block; and Multiple second data lines are used to receive from the second driving module and transmit another of the multiple data signal groups to the second display block; In this context, one of the plurality of scan signal groups is independent of the other of the plurality of scan signal groups.

10. The driving method for a liquid crystal display device as described in claim 8, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are used to receive and transmit one of the multiple scan signal groups from the second driving module to the first display block and the second display block; Multiple second scan lines are used to receive from the second driving module and transmit another of the multiple scan signal groups to the first display block and the second display block; Multiple first data lines are used to receive from the first driving module and transmit one of the multiple data signal groups to the first display block; and Multiple second data lines are used to receive from the second driving module and transmit another of the multiple data signal groups to the second display block; The plurality of first scan lines and the plurality of second scan lines are arranged in an alternating pattern.

11. The driving method for a liquid crystal display device as described in claim 8, characterized in that, The plurality of driving modules are respectively a first driving module and a second driving module, the plurality of display blocks are respectively a first display block and a second display block, and the display panel further includes: Multiple first scan lines are used to receive from the second driving module and transmit one of the multiple scan signal groups to the first display block; Multiple second scan lines are used to receive from the second driving module and transmit another of the multiple scan signal groups to the second display block; Multiple first data lines are used to receive from the first driving module and transmit one of the multiple data signal groups to the first display block; and Multiple second data lines are used to receive from the second driving module and transmit another of the multiple data signal groups to the second display block; The plurality of first scan lines are connected in parallel to the plurality of second scan lines, and one of the plurality of scan signal groups is the same as the other of the plurality of scan signal groups.

12. The driving method for a liquid crystal display device as described in claim 8, characterized in that, Each of the plurality of driving modules includes a plurality of driving chips, and one of the plurality of scan signal groups is generated by any one of the plurality of driving chips of the at least one of the plurality of driving modules.

13. The driving method for a liquid crystal display device as described in claim 8, characterized in that, The display panel is a passive matrix liquid crystal display panel.

14. The driving method for a liquid crystal display device as described in claim 8, characterized in that, The display panel is a cholesterol liquid crystal display panel.

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