Electronic device

Abstract

An electronic device comprises a first driving circuit, a processor and a data driver. The first driving circuit is used for receiving a first driving signal and generating a sensing signal. The data driver is coupled to the first driving circuit and the processor. The operation period of the electronic device comprises a first detection phase and a compensation phase. The compensation stage is located after the first detection stage. In a first detection phase, the data driver provides a first driving signal to the first driving circuit and receives a sensing signal from the first driving circuit. The processor calculates a first compensation value corresponding to the first driving circuit according to the sensing signal. In the compensation stage, the data driver generates a second driving signal according to the first compensation value and provides the second driving signal to the first driving circuit.

Description

Technical Field

[0001] The present disclosure relates to an electronic device with a compensation function. Background Art

[0002] Light Emitting Diode (LED) can be used for backlight or directly as a display, but the entire LED array is susceptible to various factors that reduce the overall brightness uniformity. For example, the difference in threshold voltage of transistor elements in the pixel circuit, the different chromaticity of the LED, the difference in voltage drop (IR drop) or the carrier mobility (mobility) of the transistor element may cause the overall brightness of the display to be uneven. Currently, sub-millimeter LEDs use internal circuit compensation, but this method still has many problems. For example, for the entire circuit, it is impossible to know which pixel circuit has an abnormal LED; for individual pixel circuits, only the threshold voltage of the transistor element can be compensated, and the compensation range is limited; and the compensation circuit is more complex and easily causes differences due to process factors. Summary of the invention

[0003] According to an embodiment of the present disclosure, an electronic device includes a first driving circuit, a processor and a data driver. The first driving circuit is used to receive a first driving signal and generate a sensing signal. The data driver is coupled to the first driving circuit and the processor. The operation period of the electronic device includes a first detection phase and a compensation phase. The compensation phase is located after the first detection phase. In the first detection phase, the data driver provides a first driving signal to the first driving circuit and receives a sensing signal from the first driving circuit. The processor calculates a first compensation value corresponding to the first driving circuit according to the sensing signal. In the compensation phase, the data driver generates a second driving signal according to the first compensation value and provides the second driving signal to the first driving circuit. According to an embodiment of the present disclosure, the electronic device includes a substrate, a plurality of electronic components, a plurality of driving circuits, a plurality of scan lines and a data driver. The electronic components are arranged on the substrate and arranged in an array. The driving circuit is arranged on the substrate and corresponding to the electronic components. One of the plurality of driving circuits is used to receive a driving signal to drive one of the plurality of electronic components and generate a sensing signal. The scan line is arranged on the substrate and coupled to the driving circuit. The scan line is used to provide a plurality of scan signals to the driving circuit. The data driver is coupled to one of the plurality of driving circuits. The data driver is used to provide a driving signal and receive a sensing signal. The array includes N rows, and the number of the plurality of scan lines is N+1. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 A schematic diagram showing an electronic device according to an embodiment of the present disclosure;

[0005] Figure 2 Show Figure 1A schematic diagram of a pixel circuit of an embodiment;

[0006] Figure 3 Show Figure 1 A schematic diagram of an embodiment of an electronic device during operation;

[0007] Figure 4 Show Figure 1 A schematic diagram of a driving signal provided by an electronic device of an embodiment during a detection phase;

[0008] Figure 5A Show Figure 1 A schematic diagram of an original data signal received by a data driver of an embodiment during a compensation phase;

[0009] Figure 5B Show Figure 1 A schematic diagram of a driving signal provided by an electronic device of an embodiment during a compensation phase;

[0010] Figure 6 A schematic diagram showing a driving signal provided by an electronic device in a compensation phase according to another embodiment of the present disclosure;

[0011] Figure 7 A schematic diagram showing a driving signal provided by an electronic device in a compensation phase according to another embodiment of the present disclosure;

[0012] Figure 8 A schematic diagram showing a driving signal of an electronic device during different operations according to an embodiment of the present disclosure;

[0013] Fig. 9 A schematic diagram showing a characteristic curve of an electronic component according to an embodiment of the present disclosure;

[0014] Fig.10 A schematic diagram showing a characteristic curve of an electronic component according to another embodiment of the present disclosure;

[0015] Fig.11 A detection schematic diagram showing one frame time of the detection stage of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0016] The present disclosure can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that in order to make it easier for readers to understand and for the simplicity of the drawings, the multiple drawings in the present disclosure only depict a portion of the electronic device, and certain elements in the drawings are not drawn according to the actual scale. In addition, the number and size of each element in the drawings are only for illustration and are not intended to limit the scope of the present disclosure.

[0017] In the following description and claims, the words “including” and “comprising” are open-ended words and thus should be interpreted as meaning “including but not limited to…”.

[0018] It should be understood that although the terms first, second, third, ... can be used to describe a variety of components, the components are not limited to these terms. These terms are only used to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but may be replaced by first, second, third, ... according to the order in which the components are declared in the claims. Therefore, in the following description, the first component may be the second component in the claims.

[0019] In some embodiments of the present disclosure, terms related to joining and connection, such as "connection", "interconnection", etc., unless otherwise defined, may refer to two structures being in direct contact, or may also refer to two structures not being in direct contact, wherein other structures are disposed between the two structures. And such terms related to joining and connection may also include situations where both structures are movable, or where both structures are fixed. In addition, the term "coupling" includes any direct and indirect electrical connection means. In the case of direct electrical connection, the endpoints of the elements on the two circuits are directly connected or interconnected by a conductor segment, and in the case of indirect electrical connection, there is a switch, a diode, a capacitor, an inductor, a resistor, other suitable elements, or a combination of the above elements between the endpoints of the elements on the two circuits, but is not limited thereto.

[0020] The electronic device disclosed herein may include a display device, an antenna device, a sensing device, a light-emitting device, or a splicing device, but is not limited thereto. The electronic device may include a bendable or flexible electronic device. The electronic device may include an electronic component. The electronic device may include, for example, a liquid crystal layer or a light emitting diode (LED). The electronic component may include passive components and active components, such as capacitors, resistors, inductors, variable capacitors, filters, diodes, transistors, sensors, micro-electromechanical system components (MEMS), liquid crystal chips, controllers, etc., but are not limited thereto. The diode may include a light-emitting diode or a photodiode. The light-emitting diode may include, for example, an organic light emitting diode (OLED), a sub-millimeter light-emitting diode (miniLED), a micro LED, a quantum dot light-emitting diode (quantum dot LED), fluorescence, phosphorescence, or other suitable materials, or a combination thereof, but is not limited thereto. The sensor may include, for example, a capacitive sensor, an optical sensor, an electromagnetic sensor, a fingerprint sensor (FPS), a touch sensor, an antenna, or a pen sensor, etc., but is not limited thereto. The controller may include, for example, a timing controller, etc., but is not limited thereto. The following text will use a display device as an electronic device to illustrate the content of the present disclosure, but the present disclosure is not limited thereto.

[0021] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts. Figure 1 A schematic diagram showing an electronic device according to an embodiment of the present disclosure. Figure 2 Show Figure 1 A schematic diagram of a pixel circuit of an embodiment. Figure 1 and Figure 2, the electronic device 100 includes a substrate 110, a data driver 120, a processor 130 and a scan driver 140. The data driver 120 is coupled between the substrate 110 and the processor 130. The electronic device 100 also includes a plurality of pixel circuits 112, a plurality of data lines 114 and a plurality of scan lines 116. It should be noted that although Figure 1 In the embodiment, the data driver 120, the processor 130 and the scan driver 140 are disposed outside the substrate 110, but Figure 1 In some embodiments, the data driver 120 , the processor 130 and / or the scan driver 140 may be disposed on the substrate 110 .

[0022] The pixel circuit 112 is disposed on the substrate 110 and arranged in an array. The array includes N rows and M columns, and the number of scan lines 116 is N+1, where N and M are integers greater than 1. The pixel circuit 112 can be a pixel that emits multi-color light at the same time, or a sub-pixel that emits a single color light. The pixel circuit 112 includes an electronic component 210 and a driving circuit 220. The electronic component 210 is disposed on the substrate 110 and arranged in an array. The electronic component 210 may include a plurality of light-emitting components, or a single light-emitting component. Figure 2 Two light emitting elements coupled in series are used as an example, but the present disclosure is not limited thereto. The driving circuit 220 is disposed on the substrate 110 and is disposed corresponding to the electronic element 210. The scanning line 116 is disposed on the substrate 110 and is coupled to the driving circuit 220.

[0023] exist Figure 2 In the embodiment, taking the driving circuit 220 located at the nth row and the mth column as an example, the driving circuit 220 receives a plurality of driving signals Dm at the receiving end IN. The driving signal Dm can be used to drive the electronic element 210 and / or generate a plurality of sensing signals Sm at the output end OUT, where n is an integer greater than 0 and less than or equal to N, and m is an integer greater than 0 and less than or equal to M. The scanning line 116_n is coupled to the driving circuit 220 to provide a scanning signal Gn to the control end of the transistor element T2 of the driving circuit 220. The scanning line 116_(n+1) is coupled to the driving circuit 220 to provide a scanning signal Gn+1 to the control end of the transistor element T3 of the driving circuit 220. The data driver 120 is used to provide a plurality of driving signals Dm and receive a plurality of sensing signals Sm. It should be noted that in some embodiments of the present disclosure, the number of scanning lines is one more than the number of rows of the pixel circuit. This is because for the driving circuit 220 in the Nth row, the scan signal GN+1 is provided to the control terminal of the transistor element T3 of the driving circuit 220 through the scan line 116_(N+1) to control the output of the sensing signal Sm.

[0024] The data driver 120 is coupled to the driving circuit 220 and the processor 130. The data driver 120 receives the original data signals D10 to DM0, that is, the uncompensated data signals. Figure 1 , the data driver 120 provides a driving signal D1 to the pixel circuit 112 in the first column, and receives a sensing signal S1 from the pixel circuit 112 in the first column; the data driver 120 provides a driving signal D2 to the pixel circuit 112 in the second column, and receives a sensing signal S2 from the pixel circuit 112 in the second column, and so on; the data driver 120 provides a driving signal DM to the pixel circuit 112 in the Mth column, and receives a sensing signal SM from the pixel circuit 112 in the Mth column.

[0025] The data driver 120 includes a plurality of output circuits 122 and a plurality of sensing circuits 124. The output circuit 122 is used to output drive signals D1 to DM to the data lines 114. The drive signals D1 to DM may be, for example (but not limited to), compensated data signals. The output circuit 122 may include a digital-to-analog converter for converting digital data into analog drive signals D1 to DM, but is not limited thereto. The sensing circuit 124 is coupled to the sensing line 115 for transmitting the sensing signals S1 to SM, and is used to receive the sensing signals S1 to SM. The sensing circuit 124 may include an analog-to-digital converter, which may be used (but not limited to) to convert the sensing signals S1 to SM into digital signals, and output the converted values ​​V1, V2 to VM to the processor 130.

[0026] The processor 130 receives the conversion values ​​V1 to VM, and accordingly calculates and outputs the compensation values ​​C1 to CM to the data driver 120. In addition, the processor 130 may also determine whether the electronic component 210 in the pixel circuit 112 is abnormal. For example, the processor 130 may determine whether the brightness of the electronic component 210 deviates too much from the overall brightness uniformity of the substrate 110 based on the conversion values ​​V1 to VM, such as being too bright or too dark, and thus being determined as an abnormal component.

[0027] Figure 3 Show Figure 1 A schematic diagram of an electronic device during operation of an embodiment. Figure 1 and Figure 3 , the operation period of the electronic device 100 includes a first detection stage 310, a second detection stage 320, and compensation stages 330 and 340. The compensation stage 330 is located after the first detection stage 310 and between the first detection stage 310 and the second detection stage 320. Each stage may include multiple frame times. The first detection stage 310 is, for example, an initial detection when the electronic device 100 is turned on. The second detection stage 320 is, for example, a timed detection after the electronic device 100 has been operated for a period of time. The compensation stages 330 and 340 are, for example, display periods of the electronic device 100.

[0028] Figure 4 Show Figure 1 A schematic diagram of a driving signal provided by an electronic device of an embodiment during a detection phase. Figure 1 , Figure 2 and Figure 4 , the driving signals D1 to DM provided by the data driver 120 in the detection phases 310 and 320 can be used for detection (hereinafter referred to as the first driving signal). Taking the mth column as an example, in the first detection phase 310, the data driver 120 provides the first driving signal Dm to each driving circuit 220 on the mth column (that is, DM=Dm), and sequentially receives the sensing signal Sm from each driving circuit 220. The processor 130 calculates the compensation value Cm corresponding to each driving circuit 220 according to the sensing signal Sm.

[0029] Specifically, the first detection phase 310 includes a plurality of frame times FT1 and FT2. In the frame time FT1, the scan driver 140 sequentially provides scan signals G1, G2, G3 to GN, G(N+1) to each drive circuit 220 on the mth column through the scan line 116, and turns on the transistor element T2 therein. Then, in the frame time FT1, the data driver 120 provides a first drive signal Dm1 having a voltage value VT0, and sequentially drives the transistor element T1 of each drive circuit 220. And, Figure 2 Taking the driving circuit 220 in the nth row as an example, when the scanning signal Gn+1 turns on the transistor element T3, the voltage of the node B (i.e., the terminal voltage of the electronic element 210) can be read as the sensing signal Sm. Then, the sensing circuit 124 can convert the sensing signal Sm into a conversion value Vm, and output the conversion value Vm to the processor 130. Therefore, the processor 130 can calculate the compensation value Cm of each driving circuit 220 on the mth column according to the conversion value Vm.

[0030] In the frame time FT2, the detection method is similar to the frame time FT1, but the data driver 120 provides a first drive signal Dm2 with a voltage value VT1 to drive each drive circuit 220 on the mth column, wherein the voltage value VT1 is greater than the voltage value VT0. That is to say, in this embodiment, the voltage values ​​VT0, VT1 of the first drive signals Dm1, Dm2 may gradually increase with different frame times FT1, FT2, but the present disclosure is not limited thereto. In some embodiments, the voltage values ​​VT0, VT1 of the first drive signals Dm1, Dm2 may gradually decrease with different frame times FT1, FT2. In addition, a blank period BLK may be included between two adjacent frame times FT1, FT2, but for the sake of simplicity of the drawings, it is not mentioned in the following. Figure 8 Not drawn in.

[0031] Figure 5A Show Figure 1A schematic diagram of an original data signal received by a data driver in a compensation phase according to an embodiment. Figure 5B Show Figure 1 A schematic diagram of a driving signal provided by an electronic device of an embodiment during a compensation phase. Figure 1 , Figure 5A and Figure 5B , the driving signals D1 to DM provided by the data driver 120 in the compensation phases 320 and 340 can be used for display (hereinafter referred to as the second driving signal). Taking the mth column as an example, in the compensation phase 320, the data driver 120 generates the second driving signal Dm' according to the original data signal Dm0 and the compensation value Cm, and provides the second driving signal Dm' to each driving circuit 220 on the mth column. That is, at this time DM=Dm'.

[0032] Specifically, the compensation phase 320 includes a plurality of frame times FT1 and FT2. In the frame time FT1, the scan driver 140 sequentially provides scan signals G1, G2, G3 to GN, G(N+1) to each driving circuit 220 on the mth column through the scan line 116, and turns on the transistor element T2 therein. In the frame time FT1, the data driver 120 provides the second drive signal Dm1' and sequentially drives the transistor element T1 of each driving circuit 220. In the frame time FT2, the compensation method is similar to the frame time FT1, but the data driver 120 provides the second drive signal Dm2' to drive each driving circuit 220 on the mth column.

[0033] In the present embodiment, the voltage values ​​of the second driving signals Dm1' and Dm2' are equal to the voltage values ​​of the original data signals Dm01 and Dm02 plus the compensation value Cm obtained in the first detection stage 310. Specifically, the driving circuit 220 on the mth column includes, for example, a first driving circuit 220_1, a second driving circuit 220_2, and a third driving circuit 220_3. In the first detection stage 310, taking the frame time FT1 as an example, the data driver 120 provides the first driving signal Dm to the first driving circuit 220_1, the second driving circuit 220_2, and the third driving circuit 220_3 to obtain a first compensation value Cm1 corresponding to the first driving circuit 220_1, a second compensation value Cm2 corresponding to the second driving circuit 220_2, and a third compensation value Cm3 corresponding to the third driving circuit 220_3. In the compensation stage 320, taking the frame time FT1 as an example, the second driving signal 510 used to drive the first driving circuit 220_1 is equal to Figure 5A The voltage value of the original data signal 510A corresponding to the voltage of the original data signal 510A is added to the compensation value Cm1, and the second driving signal 520 used to drive the second driving circuit 220_2 is equal to Figure 5AThe voltage value of the original data signal 520A corresponding to the voltage of the original data signal 520A is added to the compensation value Cm2, and the second driving signal 530 used to drive the third driving circuit 220_3 is equal to Figure 5A The voltage value of the original data signal 530A corresponding to the frame time FT2 is added with the compensation value Cm3. The second driving signal Dm2' of the frame time FT2 can be deduced in the same way.

[0034] In the present embodiment, the first compensation value Cm1, the second compensation value Cm2 and the third compensation value Cm3 are all the same, but the present disclosure is not limited thereto. That is to say, in the present embodiment, the compensation value of each driving circuit can be determined according to the characteristic curve of the electronic component, and then the processor 130 calculates the representative compensation value from the respective compensation values, and then the entire screen is compensated with the representative value. In other embodiments, the first compensation value Cm1, the second compensation value Cm2 and the third compensation value Cm3 may also be different. Or the first compensation value Cm1 is the same as the second compensation value Cm2, and the first compensation value Cm1 is different from the third compensation value Cm3. The present disclosure does not limit the size relationship of the compensation values ​​of each driving circuit.

[0035] Figure 6 A schematic diagram showing a driving signal provided by an electronic device in a compensation phase according to another embodiment of the present disclosure. Figure 6 In this embodiment, the first compensation value Cm1, the second compensation value Cm2 and the third compensation value Cm3 are all different. That is, the compensation value of each driving circuit can be determined according to the characteristic curve of the electronic component, and the data driver 120 compensates one by one accordingly.

[0036] Figure 7 A schematic diagram showing a driving signal provided by an electronic device in a compensation phase according to another embodiment of the present disclosure. Figure 7 In this embodiment, the first compensation value Cm1 is the same as the second compensation value Cm2, and the first compensation value Cm1 is different from the third compensation value Cm2. That is to say, the compensation value of each driving circuit can be determined according to the characteristic curve of the electronic component. Then the processor 130 divides the screen into partitions, and then calculates the compensation value represented by each partition 701, 702 from the respective compensation values, and then each partition 701, 702 is compensated with its respective representative value. In addition, the driving circuits corresponding to pixels of different colors can also have different compensation values.

[0037] exist Figures 4 to 7In the embodiment of the present invention, the driving circuit 220 on the mth column is used as an example for explanation, and the detection method and compensation method of the frame time of the driving circuits 220 in other columns of the array at each stage can also be deduced by analogy. In addition, the first driving circuit 220_1, the second driving circuit 220_2, and the third driving circuit 220_3 are selected from driving circuits located in different rows on the mth column, but the present disclosure is not limited thereto. In other embodiments, the first driving circuit 220_1, the second driving circuit 220_2, and the third driving circuit 220_3 can also be driving circuits of the same row on different columns, or driving circuits of different rows on different columns.

[0038] Figure 8 A schematic diagram showing driving signals of an electronic device during different operations according to an embodiment of the present disclosure. Fig. 9 A schematic diagram showing the characteristic curve of the electronic component of the embodiment of the present disclosure. Figures 1 to 4 , Figure 8 and Fig. 9 The operation period of the electronic device 100 includes a first detection phase 310, a second detection phase 320, and compensation phases 330 and 340. Each phase may include a plurality of frame times FT.

[0039] Before leaving the factory, each pixel circuit 112 of the electronic device 100 may be measured to obtain the original characteristic curve 910 of the electronic component 210. For example, when the overall brightness uniformity of the electronic device 100 reaches 90% or more, the original characteristic curve 910 of each electronic component 210 is obtained, but the standard for obtaining the original characteristic curve in the present disclosure is not limited to this. Next, the first detection stage 310 is the first measurement performed when the device is turned on. Figure 4 As shown, in the first detection stage 310, in each frame time FT, the data driver 120 provides the first driving signal Dm and obtains the voltage of the node B (i.e., the terminal voltage of the electronic component 210). As time increases, the voltage value of the first driving signal Dm will gradually change, for example, from the voltage value VT0 to the voltage value VT1, at this time, the second voltage of the same node B can be measured, and then the first driving signal Dm of other voltage values ​​is input to measure the corresponding voltage value of the same node B. By gradually changing the voltage value of the first driving signal Dm in the first detection stage 310, the measured characteristic curve 920 of the electronic component 210 can be obtained. In this embodiment, the characteristic curves 910 and 920 show the relationship between the terminal voltage of the electronic component and the driving signal.

[0040] Next, the processor 130 may compare the characteristic curves 910 and 920, calculate the offset 930 of the characteristic curve 910, and determine the compensation value Cm. The calculation method of the offset 930 may include: two signal values ​​VD01 and VD1 may be obtained respectively corresponding to the same terminal voltage value Y1 on the two curves 910 and 920. The difference between the two signal values ​​VD0 and VD1 is the offset 930. In the present embodiment, the terminal voltage value Y1 may correspond to (but not limited to) the turning points P01 and P1 of the characteristic curves 910 and 920, and therefore, the offset 930 is the offset of the turning points P01 and P1 of the curves. In an embodiment, the offset may also be determined by the average value of the offsets of multiple points on the curve. The present disclosure does not limit the calculation method of the offset.

[0041] In addition, the processor 130 may also set a threshold. When the offset exceeds the threshold, the processor 130 determines that the electronic component 210 is abnormal, such as an open circuit or short circuit state. At this time, the data driver 120 provides a driving signal corresponding to grayscale 0 to the driving circuit 220 corresponding to the abnormal electronic component 210.

[0042] After obtaining the offset 930 corresponding to each driving circuit 220 in the first detection stage 310, the Figure 5B , Figure 6 or Figure 7 The compensation value Cm used in the compensation stage 330 is determined in a manner corresponding to the embodiment of the present invention. The data driver 120 provides a second drive signal Dm' to drive the transistor element T1 according to the compensation value Cm determined in the first detection stage 310. Since the characteristics of the transistor element may change during the operation of the electronic device 100, the electronic device 100 can be set to enter the second detection stage 320 after operating for a period of time. In the second detection stage 320, in order to continuously display the picture, the data driver 120 can alternately output the first drive signal Dm and the second drive signal Dm' to drive the pixel circuit 112. Therefore, in terms of signal timing, the first drive signal Dm and the second drive signal Dm' are as follows: Figure 8 The second detection stage 320 is shown as an interlaced arrangement. That is, in a part of the plurality of frame times FT, the data driver 120 provides the first driving signal Dm, and in another part of the plurality of frame times FT, the data driver 120 provides the second driving signal Dm'. It should be noted that during the display period of the second detection stage 320, since the new compensation value Cm has not yet been obtained, the data driver 120 still provides the second driving signal Dm' to drive the transistor element T1 according to the compensation value Cm determined in the first detection stage 310.

[0043] Similarly, the compensation value Cm generated after the second detection stage 320 can be calculated based on Figure 5B , Figure 6 or Figure 7In the compensation phase 340 , the data driver 120 provides a second driving signal Dm′ to drive the transistor element T1 according to the compensation value Cm in the second detection phase 320 .

[0044] In an embodiment, when the electronic device 100 can achieve a preset brightness uniformity in the compensation stage, the electronic device 100 can only detect in the next detection stage without performing compensation in the next compensation stage. In an embodiment, the electronic device 100 can gradually adjust the driving signal in multiple frame times FT in the compensation stage, and adjust the compensation value multiple times instead of all at once to reduce the situation where the voltage adjustment amplitude of the driving signal is too large to affect the display quality.

[0045] Fig.10 A schematic diagram showing a characteristic curve of an electronic component according to another embodiment of the present disclosure. Fig.10 In this embodiment, characteristic curves 940 and 950 show the relationship between the voltage difference of the electronic component and the driving signal. The voltage difference of the electronic component is, for example, Figure 2 The voltage difference between the system voltage ARVDD and the voltage at node B. Fig. 9 Similar to the embodiment shown, the processor 130 may calculate the offset 960 of the characteristic curve 940 according to (but not limited to) two curve turning points P02 and P2 corresponding to the same voltage difference Y2 on the characteristic curves 940 and 950 to determine the compensation value Cm, or determine the compensation value Cm by the average value of the offsets of multiple points on the characteristic curves 940 and 950. Since the voltage difference of the electronic component is the voltage difference between the system voltage ARVDD and the node B, the influence of noise can be subtracted. Therefore, using the voltage difference of the electronic component to determine the offset can reduce the situation where noise affects the detection result.

[0046] Fig.11 A schematic diagram showing one frame time of the detection phase of an embodiment of the present disclosure is shown. Fig.11 , Fig.11 The frame time FT shown may be any frame time FT selected from the first detection stage 310 and the second detection stage 320. In the present embodiment, the frame time FT is divided into a plurality of first segments 1110 and a plurality of second segments 1120. In terms of time, one of the second segments 1120 is located between two adjacent first segments 1110. In the second segment 1120, the data driver 120 provides a first driving signal to the driving circuit 220 for testing. In the first segment 1110, the data driver 120 provides a second driving signal to the driving circuit 220 for display.

[0047] Specifically, taking each driving circuit 220 on the mth column as an example, the scan line 116 can be divided into a plurality of scan line groups, the scan signal GP1 is the scan signal GP1 for scanning the first scan line group, and the scan signals GP2, GP3, and GPK are the scan signals for scanning the second scan line group, the third scan line group, and the Kth scan line group, where K is an integer greater than 3. Taking the first scan line group as an example, in the first section 1110_1, the scan signal GP1 sequentially scans the scan lines therein, and the data driver 120 provides the second drive signal Dm' to the driving circuit 220 for display. Then, in the second section 1120_1, the data driver 120 provides the first drive signal Dm to the driving circuit 220 for testing. In the second section 1110_2, the corresponding driving circuit 220 outputs the sensing signal Sm to the data driver 120. The detection methods of other scan line groups can be deduced in the same way. As a result, the scan driver 140 can complete the scanning by grouping in a frame time FT that is shorter than that required in the aforementioned embodiment, and the data driver 120 and the processor 130 can complete the detection operation and the compensation operation.

[0048] It should be noted that although Fig.11 The waveform corresponding to the last scanning group GPK in the frame does not have the second segment 1120, but in some embodiments, the waveform corresponding to the last scanning group GPK may have the second segment 1120, and the entire frame time FT also includes the second segment 1120 corresponding to the scanning group GPK. In addition, for the same driving circuit 220, the second driving signal Dm' is received only once in a frame time FT, but the first driving signal Dm may be received once or more than once. When the first driving signal is received multiple times, the voltage value of the first driving signal Dm received by the driving circuit 220 will show a trend of increasing or decreasing gradually.

[0049] In this embodiment, in order to reduce the delay caused by the detection that the user perceives, in any detection stage, a frame time can be divided into multiple segments by a multiplexer circuit. The detection is performed after each part of the scan line is turned on. If the detection is performed in this way, because the new compensation value has not yet been determined, the current state is still used during compensation, such as using the original data signal or the old compensation value for display.

[0050] In summary, in the embodiments of the present disclosure, the operation period of the electronic device includes a detection phase and a compensation phase. In each detection phase, the processor calculates a compensation value so that in the next compensation phase, the data driver compensates the driving circuit according to the compensation value. In this way, the overall brightness uniformity of the electronic device can be improved. In addition, in the detection phase, in order to continuously display the picture, the data driver can alternately output the driving signal for detection and the driving signal for display to drive the driving circuit.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device, include: A first driving circuit, used for receiving a plurality of first driving signals and generating a plurality of sensing signals; processor; as well as A data driver, coupled to the first driving circuit and the processor, and receiving an original data signal; wherein the operation period of the electronic device includes a first detection phase and a compensation phase, and the compensation phase is located after the first detection phase; In the first detection phase, the data driver provides the multiple first drive signals to the first drive circuit and receives the multiple sensing signals from the first drive circuit, and the processor calculates a first compensation value corresponding to the first drive circuit based on the multiple sensing signals, and in the compensation phase, the data driver generates a second drive signal based on the original data signal and the first compensation value, and provides the second drive signal to the first drive circuit. 2 . The electronic device according to claim 1 , wherein the first detection phase includes a plurality of frame times, and the voltage values ​​of the plurality of first driving signals gradually increase with different frame times. 3 . The electronic device according to claim 1 , wherein a voltage value of the second driving signal is equal to a voltage value of the original data signal plus the first compensation value.

4. The electronic device according to claim 1, wherein the electronic device further comprises a second driving circuit and a third driving circuit, and the data driver provides the plurality of first driving signals to the second driving circuit and the third driving circuit in the first detection phase to obtain a second compensation value corresponding to the second driving circuit and a third compensation value corresponding to the third driving circuit. The electronic device according to claim 4 , wherein the first compensation value, the second compensation value, and the third compensation value are all different. The electronic device according to claim 4 , wherein the first compensation value, the second compensation value, and the third compensation value are all the same. 7 . The electronic device according to claim 4 , wherein the first compensation value is the same as the second compensation value, and the first compensation value is different from the third compensation value.

8. An electronic device according to claim 1, wherein the operation period of the electronic device also includes a second detection phase, and the compensation phase is located between the first detection phase and the second detection phase, wherein the second detection phase includes multiple frame times, and in a part of the multiple frame times, the data driver provides the multiple first drive signals, and in another part of the multiple frame times, the data driver provides the second drive signal.

9. An electronic device according to claim 1, wherein the operation period of the electronic device also includes a second detection stage, and the compensation stage is located between the first detection stage and the second detection stage, wherein the second detection stage includes multiple frame times respectively, and one frame time among the multiple frame times is divided into multiple first segments and multiple second segments, in one of the multiple first segments, the data driver provides the second drive signal to the first drive circuit, in one of the multiple second segments, the data driver provides the first drive signal to the first drive circuit, and the one of the multiple second segments is located between two adjacent ones of the multiple first segments.

10. An electronic device, include: substrate; A plurality of electronic components are disposed on the substrate and arranged in an array; A plurality of driving circuits are disposed on the substrate and corresponding to the plurality of electronic components, wherein one of the plurality of driving circuits is used to receive a plurality of first driving signals and generate a plurality of sensing signals; A plurality of scan lines are disposed on the substrate and coupled to the plurality of driving circuits, wherein the plurality of scan lines are used to provide a plurality of scan signals to the plurality of driving circuits; as well as a data driver coupled to the plurality of driving circuits, wherein the data driver is used to provide the plurality of first driving signals to the one of the plurality of driving circuits and receive the plurality of sensing signals; The array includes N rows, and the number of the plurality of scan lines is N+1.

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