TW201824228A - Pixel Array Device And Segment Driving Method - Google Patents

Abstract

A segment driving method includes receiving at least one first gray-level data corresponding to at least one pixel unit at current time, reading out at least one second gray-level data corresponding to the at least one pixel unit at previous time, and determining whether the first gray-level data and the second gray-level data that each pixel unit of display segment corresponds to are the same or not. The at least one pixel unit is electrically coupled to a segment driving unit. When the first gray-level data corresponding to the pixel unit of the display segment is the same as the corresponding second gray-level data, the segment driving unit is disabled, so that the segment driving unit does not drive the at least one pixel unit to load the corresponding first gray-level data. When any first gray-level data corresponding to the pixel unit of the display segment is not the same as the corresponding second gray-level data, the segment driving unit is enabled, so that the segment driving unit drives each pixel unit to load the corresponding first gray-level data.

Description

Pixel array device and segmented driving method

The invention relates to a driving method of a display panel, in particular to a pixel driving device and a driving method in segments.

In recent years, environmental awareness has gradually increased, and energy conservation and carbon reduction have become an important issue at present. Therefore, in addition to devoting themselves to improving the display quality and technology of display panels, various manufacturers also attach great importance to the energy saving of display panels.

It is known that the display panel may include multiple pixel units, multiple scan lines, and multiple data lines. In the traditional architecture, a plurality of pixel units can be arranged in a matrix, and each pixel unit is electrically coupled to one of a plurality of scan lines and one of a plurality of data lines, respectively. In a conventional driving method of a display panel, these scan lines can sequentially receive a scan signal, so that multiple pixel units in each column can sequentially display according to the gray-scale data received by the data line. The screen display of the display panel is completed.

In the driving structure of a traditional display panel, multiple pixel units in the same row are driven synchronously because they are electrically coupled to the same scan line, and once each pixel unit is driven, gray scale data needs to be reloaded. To avoid display errors. Therefore, in the conventional driving method of the display panel, regardless of whether the gray levels required to be displayed by each pixel unit at this time and the previous time point are the same, the display panel still needs to update the gray level data to each pixel unit through the data line at all times.

In one embodiment, a pixel array includes a plurality of data lines, a plurality of pixel units, at least one segment driving unit, and a control unit. The plurality of pixel units are arranged in an array, and each pixel unit is electrically coupled to one of the plurality of data lines. Each segment driving unit is electrically coupled to at least one pixel unit adjacent to and electrically coupled to a different complex data line. The control unit determines whether the first grayscale data corresponding to each pixel unit electrically coupled to each segment driving unit at the current time point is the same as the second grayscale data corresponding to the previous time point. When the first grayscale data corresponding to each pixel unit electrically coupled to the segment driving unit at the current time point is the same as the second grayscale data corresponding to the previous time point, the control unit disables the segment driving unit , So that the segment driving unit does not drive each pixel unit that is electrically coupled to load the corresponding first gray scale data through the electrically coupled data line. When the first gray level data corresponding to any pixel unit electrically coupled to the segment driving unit at the current time point is different from the second gray level data corresponding to the previous time point, the control unit enables the segment driving. Unit, so that each pixel unit that is electrically driven by the segment drive loads the corresponding first grayscale data through the electrically coupled data line.

In one embodiment, a segmented driving method includes receiving at least one first grayscale data corresponding to at least one pixel unit at the current point in time, and reading out at least one pixel unit corresponding to the previous point in time from a storage unit. At least one second grayscale data of, and determine whether the first grayscale data corresponding to each pixel unit and the second grayscale data are the same. Among them, at least one pixel unit is electrically coupled to the segment driving unit. When the first gray level data corresponding to each pixel unit is the same as the second gray level data, the segment driving unit is disabled so that the segment driving unit does not drive each pixel unit to load the corresponding first gray level data . When the first grayscale data corresponding to any pixel unit is different from the second grayscale data, the segment driving unit is enabled, so that the segment driving unit drives each pixel unit to load the corresponding first grayscale data. Order data.

In summary, the pixel array device and the segment driving method according to the embodiments of the present invention divide the pixel units on each scanning line into sections and determine whether the grayscale data corresponding to each pixel unit in each section needs to be updated. , And input gray-scale data only when updating is needed to refresh and display the image in sections, thereby saving unnecessary power consumption.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient to enable any person skilled in the art to understand and implement the technical content of the present invention, and according to the content disclosed in this specification, the scope of patent applications and the drawings. Anyone skilled in the related art can easily understand the related objects and advantages of the present invention.

FIG. 1 is a schematic diagram of an embodiment of a pixel array device. Referring to FIG. 1, the pixel array device 100 includes a plurality of data lines D1-D4, a plurality of pixel units P11-P24, at least one segment driving unit E11-E22, and a control unit 110.

The pixel units P11-P24 are arranged in an array, and the pixel units P11-P24 are electrically coupled to one of the data lines D1-D4. For example, the pixel units P11 and P21 in the first row are electrically coupled to the data line D1, and the pixel units P12 and P22 in the second row are electrically coupled to the data line D2. The pixel units P13 and P23 in the third row are electrically coupled to the data line D3, and the pixel units P14 and P24 in the fourth row are electrically coupled to the data line D4. And so on.

Each segment driving unit E11-E22 is electrically coupled to at least one pixel unit adjacent to and electrically coupled to different data lines D1-D4. For the convenience of description, in the following, each segment driving unit is electrically coupled to two pixel units as an example, but this number is not limited by the present invention. Here, the segment driving unit E11 is electrically coupled to the adjacent pixel units P11-P12 in the same row. The segment driving unit E12 is electrically coupled to adjacent pixel units P13-P14 in the same row. The segment driving unit E21 is electrically coupled to adjacent pixel units P21-P22 in the same row. The segment driving unit E22 is electrically coupled to adjacent pixel units P23-P24 in the same row. And so on.

In other words, each segment driving unit E11 / E12 / E21 / E22 forms a display segment with at least one pixel unit P11-P12 / P13-P14 / P21-P22 / P23-P24 which is electrically coupled to each segment driving unit.

The control unit 110 is electrically coupled to the segment driving units E11-E22. In addition, the control unit 110 may be electrically coupled to a previous-stage circuit (not shown), such as a data driving circuit, and receive gray-scale data corresponding to each pixel unit P11-P24 from the previous-stage circuit.

During the display process, the control unit 110 confirms whether there is a change in the grayscale data of each display section to decide whether to update it. Here, the control unit 110 may correspond to the grayscale data corresponding to each pixel unit P11-P24 electrically coupled to each segment driving unit E11-E22 at the current time point (hereinafter referred to as the first grayscale data I11- I14) and the grayscale data corresponding to the previous point in time (hereinafter referred to as the second grayscale data I21-I24) to determine whether to activate the segment driving units E11-E22 to drive its electrically coupled pixels The units P11-P24 load the corresponding first gray-scale data I11-I14 again through the electrically coupled data lines D1-D4.

In the pixel array device 100, the circuit structure and operation of each segment driving unit E11-E22 are substantially the same. For the sake of clarity, a section driving unit E11 will be described below.

FIG. 2 is a schematic flowchart of an embodiment of a segmented driving method.

Referring to FIG. 1 and FIG. 2, for the segment driving unit E11, the control unit 110 receives all the first grayscale data I11 and I12 corresponding to the pixel units P11 and P12 electrically coupled to the segment driving unit E11 at the current time. (Step S100), and the control unit 110 reads the second grayscale data I21 and I22 corresponding to the pixel units P11 and P12 at the previous point in time (step S200). Then, the control unit 110 determines whether the first grayscale data I11 and I12 corresponding to the pixel units P11 and P12 are the same as the second grayscale data I21 and I22 (step S300).

In an embodiment of step S300, the control unit 110 is configured to compare the first grayscale data I11, I12 corresponding to each pixel unit P11, P12 and the second grayscale data I21 corresponding to each pixel unit P11, P12, respectively. , I22 for comparison. In other words, the control unit 110 compares the first grayscale data I11 corresponding to the pixel unit P11 with the second grayscale data I21, and compares the first grayscale data I12 and the second grayscale corresponding to the pixel unit P12. The data I22 is compared to determine whether the gray levels required by the two pixel units P11 and P12 at the current time point and the previous time point are exactly the same.

When the control unit 110 determines that the first grayscale data I11 and I12 corresponding to the pixel units P11 and P12 electrically coupled to the segment driving unit E11 are the same as the second grayscale data I21 and I22 (that is, the pixel unit P11 When the corresponding first grayscale data I11 is the same as the second grayscale data I12, and the first grayscale data I21 and the second grayscale data I22 corresponding to the pixel unit P12 are the same), it means that the pixel units P11 and P12 are in The grayscale required to be displayed at the current point is the same as the grayscale displayed at the previous point in time. At this time, the control unit 110 disables the section driving unit E11 (step S400), so that the section driving unit E11 does not drive each picture. The element units P11 and P12 load the corresponding first grayscale data I11 and I12 through the corresponding data lines D1 and D2, that is, new grayscale data are not loaded.

Conversely, when the control unit 110 determines that the first grayscale data I11 and I12 corresponding to any pixel unit P11 and P12 electrically coupled to the segment driving unit E11 are different from the second grayscale data I21 and I22 (that is When the first grayscale data I11 corresponding to the pixel unit P11 is different from the second grayscale data I12 and / or the first grayscale data I21 and the second grayscale data I22 corresponding to the pixel unit P12 are different), It means that the gray levels required to be displayed by the pixel units P11 and P12 at the current time point are not the same as the gray levels displayed at the previous time point. At this time, the control unit 110 enables the section driving unit E11 (step S500) to make the area The segment driving unit E11 drives each pixel unit P11 and P12 to load the corresponding first grayscale data I11 and I12 through the corresponding data lines D1 and D2, that is, new grayscale data is loaded to update the display screen of this display section. .

In one embodiment, the pixel array device 100 may further include a storage unit 120. At least one second grayscale data I21-I24 corresponding to each pixel unit P11-P24 at the previous point in time can be stored in the storage unit 120 for the control unit 110 to read out from the storage unit 120 during comparison . In another embodiment, the storage unit 120 can also be used to store multiple pieces of grayscale data at different time points of each pixel unit P11-P24.

In some embodiments, the control unit 110 may be a micrometer integrated circuit (micrometers IC, or a micro-IC), but the present invention is not limited thereto. In some embodiments, the control unit 110 and the data driving circuit are implemented by the same or different micro integrated circuit.

In some embodiments, each section driving unit E11-E22 has a control pin, and the control pins of each section driving unit E11-E24 can be electrically coupled to the control unit 110. Each section driving unit E11-E22 can decide whether to drive the electrically coupled pixel units P11-P24 according to the signal received by its control pin (disable signal Sd or enable signal Se), so that The pixel units P11-P12 / P13-P14 / P21-P22 / P23-P24 located in the same display section can not be driven at the same time (that is, segmented driving).

In some embodiments, the control pins of the segment driving units E11-E22 can be electrically coupled to the control unit 110 independently and independently. In other words, the control unit 110 can output the disable signal Sd or the enable signal Se to the control pins of the drive units E11-E22 of each section through different wires. In other embodiments, the segment driving units E11-E22 are adjacent to each other and are electrically coupled to the pixel units P11-P24 located in different columns, which can be electrically coupled to the control unit 110 by using the same wiring. For example, as shown in FIG. 1, the control pin of the segment driving unit E11 and the control pin of the segment driving unit E21 may be electrically coupled to the control unit 110 by the same wiring, and the control of the segment driving unit E12 The pin and the control pin of the segment driving unit E22 can be electrically coupled to the control unit 110 through the same wiring.

In some embodiments, the segment driving units E11-E12 may generate the scanning signal Ss in response to the enable signal Se, and may not generate the scanning signal Ss in response to the disable signal Sd.

FIG. 3 is a schematic flowchart of an embodiment of step S400 in FIG. 2. Please refer to FIG. 1 to FIG. 3. In an embodiment of step S400, when the control unit 110 determines that the first grayscale data I11, corresponding to each pixel unit P11, P12 electrically coupled to the segment driving unit E11, When I12 is the same as the second grayscale data I21 and I22, the control unit 110 generates a disable signal Sd to the segment driving unit E11 (step S410). The segment driving unit E11 receives the disabled signal Sd and does not output the scanning signal Ss to the pixel units P11 and P12 according to the disabled signal Sd (step S420), so that the pixel units P11 and P12 cannot be loaded according to the scanning signal Ss. Enter the corresponding first grayscale data I11, I12.

FIG. 4 is a schematic flowchart of a second embodiment of step S500 in FIG. 2. Please refer to FIG. 1 to FIG. 4. In one embodiment, when the control unit 110 determines that the first grayscale data I11, I12 corresponding to any of the pixel units P11, P12 electrically coupled to the segment driving unit E11, and When the second grayscale data I21 and I22 are different, the control unit 110 generates an enabling signal Se to the segment driving unit E11 (step S510). The segment driving unit E11 receives the enabling signal Se and outputs a scanning signal Ss to each pixel unit P11, P12 according to the enabling signal Se (step S520), so that each pixel unit P11, P12 is loaded into the corresponding pixel unit according to the scanning signal Ss. The first grayscale data I11, I12 (step S530).

In some embodiments, the enabling signal Se and the disabling signal Sd may be two different levels of the same control signal. For example, the control unit 110 may disable the segment driving unit E11 with a low-level control signal and enable the segment driving unit E11 with a high-level control signal, but the present invention is not limited thereto.

FIG. 5 is a schematic flowchart of an embodiment of step S520 in FIG. 4. FIG. 6 is a schematic diagram of a first embodiment of a segment driving unit. FIG. 7 is a waveform diagram of an embodiment of the pilot signal Q1, the scan signal Ss, and the voltage stabilization signal P in FIG. 6.

Please refer to FIGS. 1 to 6. In one embodiment, each segment driving unit E11 may include at least two transistors (hereinafter referred to as a first transistor M1 and a second transistor M2).

In each section driving unit E11, the first terminal of the first transistor M1 is electrically coupled to the control unit 110, and the control terminal of the first transistor M1 receives a conductive signal Q1. The second terminal of the second transistor M2 is electrically coupled to a ground voltage gnd, and the control terminal of the second transistor M2 receives a regulated voltage P. The second terminal of the first transistor M1 and the first terminal of the second transistor M2 are connected to each other to output a scanning signal Ss to the pixel units P11 and P12. Here, the first terminal of the first transistor M1 is the control pin of the aforementioned segment driving unit E11.

When the control unit 110 enables the segment driving unit E11, the control unit 110 outputs an enabling signal Se to the first terminal of the first transistor M1 (ie, the control pin of the segment driving unit E11), so that the segment driving unit E11 generates a scanning signal Ss according to the pilot signal Q1 and the regulated signal P to drive each pixel unit P11, P12 (step 520a).

In some embodiments, as shown in FIG. 7, the conduction signal Q1 and the voltage stabilization signal P have a conduction period (high level) and a cut-off period (low level) respectively, and the conduction period of the conduction signal Q1 is a voltage stabilization signal. The conduction periods of P are staggered with each other. In other words, when the conducting signal Q1 turns on the first transistor M1 of the segment driving unit E11, the voltage stabilization signal P can disable the second transistor M2 of the segment driving unit E11, and when the stabilizing signal P turns on the segment driving unit When the second transistor M2 of E11, the conduction signal Q1 can disable the first transistor M1 of the segment driving unit E11, thereby enabling the segment driving unit E11 to output to the level of the pixel units P11, P12 (scan Signal Ss) is more stable.

For example, when the control unit 110 enables the segment driving unit E11 (that is, the first terminal of the first transistor M1 receives the enabling signal Se), the conduction signal Q1 turns on the first transistor M1 and the voltage stabilization signal P The second transistor M2 is disabled, so that the connection between the first transistor M1 and the second transistor M2 outputs a scanning signal Ss to the pixel units P11 and P12. Conversely, when the control unit 110 disables the segment driving unit E11 (that is, the first terminal of the first transistor M1 receives the disable signal Sd), the conduction signal Q1 disables the first transistor M1 and the voltage-stabilizing signal P turns on. The second transistor M2, so that the connection between the first transistor M1 and the second transistor M2 does not output the scanning signal Ss to the pixel units P11, P12.

Please refer to FIG. 1 to FIG. 7. In one embodiment, when the control signal received by the first terminal of the first transistor M1 is the enable signal Se (that is, the segment driving unit E11 is enabled), the segment driving is performed. The scanning signal Ss output by the unit E11 during the conducting period of the conducting signal Q1 may be a high level to drive the electrically coupled pixel units P11 and P12 to load the first gray level through the corresponding data lines D1 and D2. Information I11, I12. Conversely, when the control signal received by the first terminal of the first transistor M1 is the disable signal Sd (that is, the segment driving unit E11 is disabled), the segment driving unit E11 outputs during the conducting period of the conducting signal Q1. The scanning signal Ss is at a low level, and the first gray-scale data I11 and I12 are loaded by driving the pixel units P11 and P12 that are not electrically coupled.

In addition, the on-period of each signal is represented by a high level and the cut-off period of each signal is represented by a low level, but the present invention is not limited to this.

In one embodiment, each pixel unit P11-P12 includes a pixel switch Mp and a storage capacitor Cst. The control terminal of the pixel switch Mp is electrically coupled to the second terminal of the first transistor M1 and the first terminal of the second transistor M2. The first terminal of the pixel switch Mp is electrically coupled to the corresponding data line D1 / D2, and receives gray-scale data from the data line D1 / D2. The storage capacitor Cst is electrically coupled between the second terminal of the pixel switch Mp and the ground. When the control terminal of the pixel switch Mp receives the high-level scanning signal Ss, the pixel switch Mp is turned on to load the first grayscale data I11 / I12 into the storage capacitor Cst.

FIG. 8 is a schematic diagram of a second embodiment using the segment driving unit E11 as an example. FIG. 9 is a waveform diagram of an embodiment of the pilot signal, the scan signal, and the voltage stabilization signal in FIG. 8. Please refer to FIGS. 1 to 5, 8 and 9. In one embodiment, the segment driving unit E11 may further include a capacitor C1. In the section driving unit E11, the capacitor C1 is electrically coupled between the control terminal of the first transistor M1 and the second terminal of the first transistor M1. For example, the first terminal of the capacitor C1 is electrically coupled to the first The control terminal of a transistor M1 is connected to the conductive signal Q1, and the second terminal of the capacitor C1 is electrically coupled to the second terminal of the first transistor M1 and the first terminal of the second transistor M2. Here, the capacitor C1 can be used to raise the level of the conductive signal Q1 input to the control terminal of the first transistor M1. For example, when the control unit 110 outputs the disable signal Sd, the pilot signal Q1 may be a high level, and the level of the pilot signal Q1 may be a first value V1. Then, when the control unit 110 outputs the enabling signal Se, the level of the pilot signal Q1 can be raised to a second value V2 by the influence of the capacitor C1, so that the second terminal of the first transistor M1 and the second The level of the scanning signal Ss output from the first terminal of the transistor M2 may not be affected by the threshold voltage of the first transistor M1. Here, the first value V1 is smaller than the threshold voltage of the first transistor M1, and the second value V2 is larger than the sum of the threshold voltage of the first transistor M1 and the first value V1, but the present invention is not limited thereto.

FIG. 10 is a schematic diagram of a third embodiment using the segment driving unit E11 as an example, and FIG. 11 is an embodiment of the pilot signal, the scan signal, the voltage stabilization signal, the clock signal, and the anti-clock signal in FIG. 10 Waveform diagram.

In some embodiments, the segment driving unit E11 may further include a third transistor M3. In the segment driving unit E11, the first terminal of the third transistor M3 is electrically coupled to the junction of the second transistor M2 and the first transistor M1 (for example, the second terminal of the first transistor M1 is connected to the first transistor M1). The first terminal of the second transistor M2). In other words, in this embodiment, the first terminal of the third transistor M3 is also electrically coupled to the second terminal of the capacitor C1, and the first terminal of the capacitor C1 is electrically coupled to the control terminal and the conductive signal of the first transistor M1. Q1. The second terminal of the third transistor M3 is electrically coupled to the ground voltage gnd. The control terminal of the third transistor M3 is electrically coupled to an anti-clock signal XCK. Among them, the anti-clock signal XCK is inverted to the one-clock signal CK. Here, the third transistor M3 and the anticlockwise signal XCK can be used to assist in stabilizing the level of the scanning signal Ss output from the segment driving unit E11 to the pixel units P11-P12.

In an embodiment, the conduction signals Q1-Q2 provided to the control terminals of the first transistors M1 of the segment driving units E11-E22 may be generated by the gate driving circuit 130 or an additional signal generator.

In an embodiment, please refer to FIG. 1. The pixel array device 100 may further include at least one gate driving circuit 130, and each gate driving circuit 130 is electrically coupled to at least one segment driving unit E11-E22. At least one. The gate driving circuit 130 can be used to generate the conduction signals Q1-Q2 and output the conduction signals Q1-Q2 to the control terminal of the first transistor M1 in the at least one segment driving unit E11-E22.

In some embodiments, the pixel array device 100 may further include a plurality of scan lines G1-G2. The scanning lines G1-G2 are interleaved with the data lines D1-D4 to define a plurality of pixel regions A. The pixel units P11-P24 are respectively located in the pixel regions A. Each scanning line G1-G2 is electrically coupled to the gate driving circuit 130 and the corresponding segment driving units E11-E22. For example, the scanning line G1 is electrically coupled between the gate driving circuit 130 and the segment driving units E11-E12 in the first column. The scanning line G2 is electrically coupled between the gate driving circuit 130 and the segment driving units E21-E22 in the second column. And so on. In other words, the pixel units P11-P14 in the same column are electrically connected to the same scanning line G1-G2 via the respective segment driving units E11-E12. For example, the scanning line G1 is electrically coupled to all the segment driving units E11-E12 in the first column. The scanning line G2 is electrically coupled to all the segment driving units E21-E22 in the second column. And so on. That is, the pixel units P11-P14 of the first column are electrically connected to the scanning line G1 via the respective segment driving units E11-E12. The pixel units P21-P24 in the second column are electrically connected to the scanning line G2 via the respective segment driving units E21-E22. And so on.

Here, the conducting signal Q1 generated by the gate driving circuit 130 is input to the control terminal of the first transistor M1 in the corresponding segment driving unit E11-E12 via the scanning line G1, and the conducting signal Q2 generated by the scanning signal G1 is scanned. The line G2 is input to the control terminal of the first transistor M1 in the corresponding segment driving unit E21-E22.

In addition, in some embodiments, the gate driving circuit 130 may be further configured to generate a regulated voltage signal P, and the gate driving circuit 130 is electrically coupled and outputs the regulated voltage P to the first of the segment driving units E11-E22. Control terminal of the two transistor M2.

In one embodiment, the gate driving circuit 130 can operate according to a clock signal CK, and generate the pilot signals Q1-Q2 and the voltage-stabilizing signal P according to the clock signal CK.

In some embodiments, before step S520 or step S520a, the pixel array device 100 can use the gate driving circuit 130 to generate the conduction signals Q1-Q2 and the voltage stabilization signal P to the segment driving units E11-E22, so that each After the segment driving units E11-E22 are enabled, the scanning signals Ss can be generated according to the pilot signals Q1-Q2 and the voltage stabilization signal P to drive the electrically coupled pixel units P11-P24 to load the corresponding first gray level. Information I11-I14.

In some embodiments, the gate driving circuit 130 may be a Gate On Array (GOA) circuit, but the present invention is not limited thereto. The gate driving circuit 130 may also be any suitable signal generator.

It should be noted that, although the above sections are electrically coupled to the two pixel units P11-P24 with each section driving unit E11-E22 (that is, each section driving unit E11-E22 is used to drive two pixel units P11-P24 ) As an example, but the present invention is not limited to this. For example, as shown in FIG. 12, the number of segment driving units E11-E22 may be the same as the number of pixel units P11-P22, and each segment driving unit E11-E22 are electrically connected to the corresponding pixel units P11-P22 in a one-to-one manner. Alternatively, each segment driving unit E11-E22 may be electrically coupled to three or more pixel units P11-P24. Furthermore, although the number of pixel units P11-P24 electrically coupled to each segment driving unit E11-E22 disclosed herein is the same, the present invention is not limited thereto. In other words, the number of pixel units P11-P24 electrically coupled to each of the segment driving units E11-E22 may also be different from each other.

In summary, the pixel array device and the segment driving method according to the embodiments of the present invention divide the pixel units on each scanning line into sections and determine whether the grayscale data corresponding to each pixel unit in each section needs to be updated. , And input gray-scale data only when updating is needed to refresh and display the image in sections, thereby saving unnecessary power consumption.

Although the technical content of the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art and making some changes and retouching without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended patent application.

100‧‧‧ pixel array device

110‧‧‧control unit

120‧‧‧Storage unit

130‧‧‧Gate driving circuit

C1‧‧‧capacitor

CK‧‧‧clock signal

Cst‧‧‧Storage capacitor

D1-D4‧‧‧ Data Line

E11-E24‧‧‧ section drive unit

G1-G2‧‧‧scan line

gnd‧‧‧ground voltage

I11-I14‧‧‧‧The first gray scale data

I21-I24 ‧‧‧ The second gray scale data

M1‧‧‧First transistor

M2‧‧‧Second transistor

M3‧‧‧Third transistor

Mp‧‧‧Pixel Switch

P‧‧‧Regulated signal

P11-P24‧‧‧Pixel Unit

Ss‧‧‧scan signal

Sd‧‧‧forbidden signal

Se‧‧‧ enabling signal

Q1-Q2‧‧‧ pilot signal

XCK‧‧‧Anti-clock signal

A‧‧‧pixel area

V1‧‧‧ first value

V2‧‧‧Second Value

S100 ~ S530‧‧‧step

FIG. 1 is a schematic diagram of an embodiment of a pixel array device. FIG. 2 is a schematic flowchart of an embodiment of a segmented driving method. FIG. 3 is a schematic flowchart of an embodiment of step S400 in FIG. 2. FIG. 4 is a schematic flowchart of the first embodiment of step S500 in FIG. 2. FIG. 5 is a schematic flowchart of an embodiment of step S520 in FIG. 7. FIG. 6 is a schematic diagram of a first embodiment of a segment driving unit. FIG. 7 is a waveform diagram of an embodiment of the pilot signal, the scan signal, and the voltage stabilization signal in FIG. 6. FIG. 8 is a schematic diagram of a second embodiment of the segment driving unit. FIG. 9 is a waveform diagram of an embodiment of the pilot signal, the scan signal, and the voltage stabilization signal in FIG. 8. FIG. 10 is a schematic diagram of a third embodiment of the segment driving unit. FIG. 11 is a waveform diagram of an embodiment of the pilot signal, the scan signal voltage stabilization signal, the clock signal, and the anti-clock signal in FIG. 10. FIG. 12 is a schematic diagram of another embodiment of a pixel array device.

Claims (12)

A pixel array device includes: a plurality of data lines; a plurality of pixel units arranged in an array and electrically coupled to one of the plurality of data lines; at least one segment driving unit, each segment driving unit being electrically coupled Connected to at least one pixel unit of the plurality of pixel units that are adjacent and electrically coupled to different complex data lines; and a control unit that determines whether each of the pixel units electrically coupled to each of the segment driving units is in Whether a first grayscale data corresponding to the current point in time is the same as a second grayscale data corresponding to the previous point in time; wherein, when each pixel unit electrically coupled to the segment driving unit is in the current When the first grayscale data corresponding to the time point is the same as the second grayscale data corresponding to the previous time point, the control unit disables the segment driving unit so that the segment driving unit does not drive the power. Each pixel unit that is coupled electrically loads the corresponding first grayscale data through the data line that is electrically coupled; and any pixel unit that is electrically coupled by the segment driving unit The first corresponding to the current point in time When the grayscale data is different from the second grayscale data corresponding to the previous point in time, the control unit enables the segment driving unit so that the segment driving unit drives each of the pixels that are electrically coupled. The unit loads the corresponding first grayscale data through the data line electrically coupled. The pixel array device according to claim 1, wherein each of the segment driving units includes: a first transistor, a first terminal of the first transistor is electrically coupled to the control unit, and the first transistor is A second terminal is electrically coupled to the corresponding at least one pixel unit, and a control terminal of the first transistor is electrically coupled to a conducting signal; and a second transistor, a first terminal of the second transistor is electrically The second terminal of the first transistor and the corresponding at least one pixel unit are electrically coupled, the second terminal of the second transistor is electrically coupled to a ground voltage, and the control terminal of the second transistor is electrically connected A voltage-stabilizing signal is coupled to each other, wherein the conducting period of the conducting signal and the conducting period of the regulating signal are staggered. The pixel array device according to claim 2, wherein each of the segment driving units further includes: a capacitor electrically coupled to the control terminal of the first transistor and the second terminal of the first transistor Between to raise the level of the pilot signal. The pixel array device according to claim 2, further comprising: at least one gate driving circuit, each of the gate driving circuits is electrically coupled and outputs the conduction signal to the control terminal of at least one first transistor, Each gate driving circuit is electrically coupled and outputs the voltage stabilization signal to the control terminal of at least one second transistor. The pixel array device according to claim 4, wherein the at least one gate driving circuit generates the conduction signal according to a clock signal, and each of the segment driving circuits further includes a third transistor, the third transistor The first terminal of the third transistor is electrically coupled to the second terminal of the first transistor, the first terminal of the second transistor and the corresponding at least one pixel unit, and the second terminal of the third transistor is electrically Is coupled to the ground voltage, and the control terminal of the third transistor is electrically coupled to an anti-clock signal, wherein the anti-clock signal is inverted to the clock signal. The pixel array device according to claim 1, further comprising: at least one gate driving circuit, each of which is electrically coupled to at least one of the at least one segment driving unit. A segmented driving method includes: receiving at least one first gray-scale data corresponding to at least one pixel unit at a current point in time, wherein the at least one pixel unit is electrically coupled to a sector moving unit; and from a storage unit Read out at least one second grayscale data corresponding to the at least one pixel unit at the previous point in time; determine whether the first grayscale data corresponding to each pixel unit is the same as the second grayscale data; when each When the first grayscale data corresponding to the pixel unit is the same as the second grayscale data, the segment driving unit is disabled, so that the segment driving unit does not drive each pixel unit to load the corresponding pixel unit. First gray level data; and when the first gray level data corresponding to any of the pixel units is different from the second gray level data, enabling the segment driving unit to drive the segment driving unit Each pixel unit is loaded with the corresponding first gray scale data. The segmented driving method according to claim 7, wherein the step of disabling the segment driving unit includes: generating a disabling signal to the segment driving unit; and disabling the segment driving unit according to the disabling signal. A scan signal is output to each pixel unit, so that each pixel unit cannot load the corresponding first grayscale data according to the scan signal. The segment driving method according to claim 7, wherein the step of enabling the segment driving unit comprises: generating a uniform energy signal to the segment driving unit; and generating a scan by the segment driving unit according to the enabling signal. A signal is given to each pixel unit; and each pixel unit loads the corresponding first grayscale data according to the scanning signal. The segment driving method according to claim 9, further comprising: using a gate driving circuit to generate a conduction signal and a voltage stabilization signal to the segment driving unit, a conduction period of the conduction signal and a conduction of the voltage stabilization signal Period interleaving; wherein the step of generating the scanning signal includes: generating the scanning signal by the segment driving unit according to the enabling signal, the pilot signal and the voltage stabilization signal. The segment driving method according to claim 7, further comprising: using a gate driving circuit to generate a conduction signal and a voltage stabilization signal to the segment driving unit, a conduction period of the conduction signal and a conduction of the voltage stabilization signal. The periods are staggered. The step of driving each pixel unit includes: driving the pixel units by the segment driving unit according to the pilot signal and the voltage stabilization signal. The segment driving method according to claim 7, wherein the at least one pixel unit is electrically coupled to different data lines.