Pixel control circuit and display panel

Abstract

The invention belongs to the technical field of display panels, and provides a pixel control circuit and a display panel. The display panel comprises a plurality of pixel units, each pixel unit comprises an original pixel and a compensation pixel, and the pixel control circuit comprises a row driving module, a column driving module and a plurality of column signal branch lines; each column signal line is connected to each pixel unit of the corresponding column through at least two column signal branch lines, and original pixels and compensation pixels in each column pixel unit are connected to different column signal branch lines of the corresponding column respectively; and the column driving module is used for outputting data signals to the column signal branch lines corresponding to the original pixels and the compensation pixels respectively when the display panel is in a stretching state, so that the original pixels and the compensation pixels are in an activated state. The original pixels and the compensation pixels can be driven in a time-sharing mode, when the display panel is stretched, the compensation pixels are driven to compensate the stretching gap, resolution compensation is achieved, and the display effect during stretching is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of display panels, and in particular, relates to a pixel control circuit and a display panel. Background Art

[0002] With the development of the display industry, conventional rigid display screens can no longer meet the requirements of multiple scenarios. Flexible stretchable display screens, as a new form of display device, can be applied to multiple scenarios, thus attracting widespread attention from consumers. In recent years, based on display technologies such as organic light emitting diodes (OLED), liquid crystal displays (LCD), and miniature light emitting diodes (Miniature Light Emitting Diode, Mini LED), display pixel units, connecting wires, and light-emitting units are formed on flexible substrates of organic materials to form stretchable display devices that can stretch / contract in a specific direction and change to a fixed shape. Stretchable display devices can be used in small-size screen applications such as wearables and handheld displays, but with the development of technology, they will be more commonly used in large-size (television, TV) in the future.

[0003] For existing stretchable display products, when the screen is stretched, the distance between pixels in the display area will increase and the resolution will decrease, resulting in different resolutions of the display before and after stretching and a worse display effect. Summary of the invention

[0004] In view of this, an embodiment of the present application provides a pixel control circuit and a display panel to solve the problem that the resolution of traditional stretchable display products decreases and the display effect deteriorates when stretched.

[0005] A first aspect of an embodiment of the present application provides a pixel control circuit of a display panel, wherein the display panel includes a plurality of pixel units, the pixel units are arranged in an array, each of the pixel units includes an original pixel and a compensation pixel, the compensation pixel includes a row compensation pixel and a column compensation pixel, the row compensation pixel is arranged between any two adjacent columns of original pixels, and the column compensation pixel is arranged between any two adjacent rows of original pixels;

[0006] The pixel control circuit includes a row driving module, a column driving module, a plurality of row signal lines, a plurality of column signal lines and a plurality of column signal branch lines;

[0007] The row driving module is connected to the row signal line, the column driving module is connected to the column signal line, each row signal line is connected to each pixel unit of the corresponding row, each column signal line is connected to each pixel unit of the corresponding column through at least two column signal branch lines, and the original pixel and the compensation pixel in each column of pixel units are respectively connected to different column signal branch lines of the corresponding column;

[0008] The row driving module is used to output a row scanning signal to the pixel unit through the row signal line;

[0009] The column driving module is used to output a data signal to the column signal line corresponding to the original pixel when the display panel is in a natural state, so that the original pixel is in an activated state; and to output a data signal to the column signal branch line corresponding to the original pixel and the compensation pixel respectively when the display panel is in a stretched state, so that the original pixel and the compensation pixel are in an activated state.

[0010] A second aspect of the embodiments of the present application provides a display panel, comprising a pixel control circuit as provided in the first aspect of the embodiments of the present application.

[0011] A pixel control circuit of a display panel provided in a first aspect of an embodiment of the present application comprises a plurality of pixel units, the pixel units are arranged in an array, each of the pixel units comprises an original pixel and a compensation pixel, the compensation pixel comprises a row compensation pixel and a column compensation pixel, the row compensation pixel is arranged between any two adjacent columns of original pixels, and the column compensation pixel is arranged between any two adjacent rows of original pixels; the pixel control circuit comprises a row driving module, a column driving module, a plurality of row signal lines, a plurality of column signal lines and a plurality of column signal branch lines; the row driving module is connected to the row signal lines, the column driving module is connected to the column signal lines, and each row signal line is connected to each of the pixel units of the corresponding row The invention relates to a display device for displaying a plurality of pixels of a display panel, wherein each column signal line is connected to each pixel unit of the corresponding column through at least two column signal branches, and the original pixel and the compensation pixel in each column pixel unit are respectively connected to different column signal branches of the corresponding column; the row driving module is used to output a row scanning signal to the pixel unit through the row signal line; the column driving module is used to output a data signal to the column signal line corresponding to the original pixel when the display panel is in a natural state, so that the original pixel is in an activated state, and to output a data signal to the column signal branch corresponding to each of the original pixel and the compensation pixel when the display panel is in a stretched state, so that the original pixel and the compensation pixel are in an activated state. In the present application, each pixel unit is provided with an original pixel and a compensation pixel, and the original pixel and the compensation pixel can be driven in a time-sharing manner through different column signal branches, so that only the original pixel can be driven when the display panel is not stretched, and when the display panel is stretched, the compensation pixel is driven to compensate for the stretching gap, so as to achieve compensation of the resolution and ensure the display effect during stretching. In addition, since the time-sharing driving of the original pixels and the compensation pixels does not rely on the array driving gate circuit (Gate On Array, GOA) implementation, it will not cause the design area of ​​the GOA unit to increase, thereby not causing the border width of the panel to increase, ensuring the narrow border effect.

[0012] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 is a structural schematic diagram of a pixel control circuit provided by an embodiment of the present application;

[0015] Figure 2 is a structural schematic diagram of a pixel unit provided in an embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of pixel display after stretching along the row direction provided by an embodiment of the present application;

[0017] Figure 4 This is a schematic diagram of pixel display after stretching along the row and column directions provided by an embodiment of the present application;

[0018] Figure 5 is a structural schematic diagram of a pixel control circuit provided by another embodiment of the present application;

[0019] Figure 6 is a structural schematic diagram of a pixel control circuit provided by another embodiment of the present application;

[0020] Figure 7 Schematic diagram of pixel driving timing provided by an embodiment of the present application.

[0021] In the figure:

[0022] 1-pixel array, 10-pixel unit, 11-original pixel, 12-compensated pixel, 121-row compensated pixel, 122-column compensated pixel,

[0023] 2-pixel control circuit, 21-row driving module, 22-column driving module, 23-row signal line, 24-column signal line, 25-column signal branch line, 251-first column signal branch line, 252-second column signal branch line, 253-third column signal branch line 253, 26-switch module, 27-control signal line. DETAILED DESCRIPTION

[0024] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0025] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0026] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0027] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0028] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0029] Embodiment 1

[0030] The pixel control circuit of the display panel provided in the embodiment of the present application comprises a plurality of pixel units, the pixel units are arranged in an array, each pixel unit comprises an original pixel and a compensation pixel, the compensation pixel comprises a row compensation pixel and a column compensation pixel, the row compensation pixel is arranged between any two adjacent columns of original pixels, and the column compensation pixel is arranged between any two adjacent rows of original pixels; the pixel control circuit comprises a row driving module, a column driving module, a plurality of row signal lines, a plurality of column signal lines and a plurality of column signal branch lines; the row driving module is connected to the row signal lines, the column driving module is connected to the column signal lines, and each row signal line is connected to each pixel of the corresponding row The pixel unit, each column signal line is connected to each pixel unit of the corresponding column through at least two column signal branches, and the original pixel and the compensation pixel in each column of the pixel unit are respectively connected to different column signal branches of the corresponding column; the row driving module is used to output a row scanning signal to the pixel unit through the row signal line; the column driving module is used to output a data signal to the column signal line corresponding to the original pixel when the display panel is in a natural state, so that the original pixel is in an activated state, and when the display panel is in a stretched state, the data signal is output to the column signal branch corresponding to the original pixel and the compensation pixel respectively, so that the original pixel and the compensation pixel are in an activated state. In the present application, each pixel unit is provided with an original pixel and a compensation pixel, and the original pixel and the compensation pixel can be driven in time-sharing manner through different column signal branches, so that only the original pixel can be driven when the display panel is not stretched, and when the display panel is stretched, the compensation pixel is driven to compensate for the stretching gap, so as to achieve compensation of the resolution and ensure the display effect during stretching. In addition, since the time-sharing driving of the original pixels and the compensation pixels does not rely on the array driving gate circuit (Gate On Array, GOA) implementation, it will not cause the design area of ​​the GOA unit to increase, thereby not causing the border width of the panel to increase, ensuring the narrow border effect.

[0031] In application, the display panel may be a liquid crystal display panel (LCD), a thin film transistor liquid crystal display panel (TFT-LCD), or the like that displays based on a backlight source. The display panel is a stretchable display panel, and "stretchable" may refer to the ability of a material, structure, device, or device component to withstand tensile deformation (e.g., lengthening and / or widening) without causing permanent deformation or failures such as rupture, for example, the ability to stretch at least 1.5 times its length without permanent deformation, cracking, or breaking. The term is also intended to include a substrate having components (regardless of whether these components themselves are individually stretchable as above) constructed in the following manner: it accommodates a stretchable, expandable, or deployable surface, and maintains functionality when applied to a stretchable, expandable, or deployable surface that has been stretched, expanded, or deployed, respectively. The term is also intended to encompass substrates that can be elastically and / or plastically deformed (i.e., after being stretched, the substrate may return to its original dimensions when the stretching force is released, or the substrate may not return to its original dimensions and may remain in the stretched configuration in some examples), and that may be deformed (i.e., stretched and optionally bent) during manufacture of the substrate, during assembly of a device incorporating the substrate (which may be considered part of the manufacturing process), and / or during use (e.g., a user may be able to stretch and optionally bend the substrate).

[0032] In application, the pixels of the display screen are designed to have a special grid-like "island" structure. Pixel cells are used in multi-color display panels and are used to refer to any part of a pixel that can be independently addressed to emit a specific color. For example, a blue pixel cell is a part of a pixel that can be addressed to emit blue light. In a full-color display, a pixel typically includes three primary color pixel cells, i.e., blue, green, and red. Alternatively, a pixel cell refers to a single light-emitting element.

[0033] In application, the row driving module 21 is a GOA unit of the display panel, also called a gate driving unit, for outputting row scanning signals. The column driving module 22 is a source driver unit of the display panel, for outputting data signals.

[0034] like Figure 1 As shown, the pixel control circuit 2 of the display panel provided in the embodiment of the present application is applied to the display panel, and the pixel array 1 of the display panel includes a plurality of pixel units 10, and the pixel units 10 are distributed in an array, and each pixel unit 10 includes an original pixel 11 and a compensation pixel 12, and the compensation pixel 12 includes a row compensation pixel 121 and a column compensation pixel 122, and the row compensation pixel 121 is arranged between any two adjacent columns of original pixels 11, and the column compensation pixel 122 is arranged between any two adjacent rows of original pixels 11;

[0035] The pixel control circuit 2 includes a row driving module 21, a column driving module 22, a plurality of row signal lines 23, a plurality of column signal lines 24 and a plurality of column signal branch lines 25;

[0036] The row driving module 21 is connected to the row signal line 23, and the column driving module 22 is connected to the column signal line 24. Each row signal line 23 is connected to each pixel unit 10 of the corresponding row, and each column signal line 24 is connected to each pixel unit 10 of the corresponding column through at least two column signal branch lines 25. The original pixel 11 and the compensation pixel 12 in each column of the pixel unit 10 are respectively connected to different column signal branch lines 25 of the corresponding column.

[0037] The row driving module 21 is used to output a row scanning signal to the pixel unit 10 through the row signal line 23;

[0038] The column driving module 22 is used to output a data signal to the column signal line 24 corresponding to the original pixel 11 when the display panel is in a natural state, so that the original pixel 11 is in an activated state; and to output a data signal to the column signal branch line 25 corresponding to the original pixel 11 and the compensation pixel 12 respectively when the display panel is in a stretched state, so that the original pixel 11 and the compensation pixel 12 are in an activated state.

[0039] In application, the row compensation pixel 121 and the column compensation pixel 122 can be an L-shaped pixel, one end of which is used to compensate the gap between row pixels, and the other end is used to compensate the gap between column pixels. The row compensation pixel 121 and the column compensation pixel 122 can also be two independent pixels, which are used to compensate the gap between row pixels and the gap between column pixels respectively. When the row compensation pixel 121 and the column compensation pixel 122 are two independent pixels, the row compensation pixel 121 and the column compensation pixel 122 can be used as a whole to synchronously write data signals, or as two independent pixels to write data signals in time.

[0040] In the application, the above scheme is explained with 5 rows and 5 columns of pixels, such as Figure 2 As shown, each pixel unit 10 is composed of an original pixel 11 and a compensation pixel 12, wherein the compensation pixel 12 includes a row compensation pixel 121 and a column compensation pixel 122, and the row compensation pixel 121 and the column compensation pixel 122 form an L shape, so that after cooperating with the original pixel 11, a pixel unit 10 similar in shape to the original pixel 11 is formed. Take the pixel unit 10 of the first row and the first column as an example for explanation, which includes the original pixel A1C1 and the compensation pixel, wherein the compensation pixel is composed of the row compensation pixel B1C1 and the column compensation pixel B1D1.

[0041] In application, the row driving module 21 scans the pixel units of each row in the pixel array through the row signal line 23. Among them, the row signal line G1 is connected to all the pixel units of the first row to activate all the pixel units of this row. In the natural state and the stretched state, both the original pixels and the compensated pixels are activated, that is, all the pixels of the C1 and D1 rows are activated. Similarly, the row signal line G2 is used to activate all the pixels of the C1 and D1 rows, the row signal line G2 is used to activate all the pixels of the C2 and D2 rows, the row signal line G3 is used to activate all the pixels of the C3 and D3 rows, the row signal line G4 is used to activate all the pixels of the C4 and D4 rows, and the row signal line G5 is used to activate all the pixels of the C5 and D5 rows.

[0042] In application, the column driving module 22 outputs data signals through the column signal lines 24, so that the pixel units connected to each column signal line 24 display corresponding brightness. In order to realize time-sharing driving of the original pixels and the compensation pixels in each column pixel unit, at least two column signal branches 25 are connected to the output end of each column signal line 24, and the original pixels and the compensation pixels are driven respectively through different column signal branches 25. According to the number of column signal branches 25, the compensation pixels can be driven as a whole, or the row compensation pixels 121 and the column compensation pixels 122 in the compensation pixels can be driven in time.

[0043] In the embodiment of the present application, each pixel unit is provided with original pixels and compensation pixels, and the original pixels and compensation pixels can be driven in time-sharing manner through different column signal lines, so that only the original pixels can be driven when the display panel is not stretched, and when the display panel is stretched, the compensation pixels are driven to compensate the stretching gap, so as to achieve compensation of the resolution and ensure the display effect during stretching. In addition, since the time-sharing drive of the original pixels and the compensation pixels does not depend on the array drive gate circuit (Gate On Array, GOA) to be implemented, the design area of ​​the GOA unit will not be increased, so as not to increase the border width of the panel, and the narrow border effect is ensured. And due to the time-sharing drive of the original pixels and the compensation pixels, different data signals can be written to the original pixels and the compensation pixels through the column drive module 22, so that the original pixels and the compensation pixels can be charged to different degrees, thereby achieving different brightness, and ensuring a better display effect.

[0044] In one embodiment, the column driver module 22 is further configured to:

[0045] When the display panel is in a row stretching state, a data signal is output to the column signal lines 24 corresponding to the original pixel 11 and the row compensation pixel 121, respectively, so that the original pixel 11 and the row compensation pixel 121 are in an activated state;

[0046] When the display panel is in a column stretching state, a data signal is output to the column signal lines 24 corresponding to the original pixel 11 and the column compensation pixel 122, respectively, so that the original pixel 11 and the column compensation pixel 122 are in an activated state;

[0047] When the display panel is in a state where rows and columns are stretched simultaneously, data signals are output to the column signal lines 24 corresponding to the original pixels 11, row compensation pixels 121, and column compensation pixels 122, respectively, so that the original pixels 11, row compensation pixels 121, and column compensation pixels 122 are in an activated state.

[0048] In applications, such as Figure 3 As shown, the AA direction in the figure is the row direction, and the other direction perpendicular to the AA direction is the column direction. When the display panel is in a natural state (i.e., not stretched), the column driving module 22 only charges the original pixel through the column signal branch connected to the original pixel, so that the original pixel is in an activated state (i.e., luminous), and the column signal branch connected to the compensation pixel cannot receive the data signal, so that the compensation pixel is in a silent state (i.e., not luminous). When the display panel is stretched along the row direction, the column driving module 22 charges the original pixel through the column signal branch connected to the original pixel, and also charges the compensation pixel through the column signal branch connected to the compensation pixel, so that both the original pixel and the compensation pixel begin to emit light. The luminous B1 / B2 / B3 / B4 / B5 / B6 column compensation pixels compensate for the gap formed by stretching in the A1 / A2 / A3 / A4 / A5 column original pixels, so that when stretched to one time in the row direction, the number of displayed pixels doubles, thereby realizing the resolution compensation in the stretched state of the display panel.

[0049] Similarly, when the display panel is stretched along the column direction, the luminous D1 / D2 / D3 / D4 / D5 row compensation pixels compensate for the gaps formed by the stretching of the C1 / C2 / C3 / C4 / C5 row original pixels, so that when stretched to one time in the column direction, the number of displayed pixels is doubled, thereby achieving resolution compensation when the display panel is in a stretched state.

[0050] In applications, such as Figure 4As shown. When the display panel is stretched in the row and column directions, the column driving module 22 charges the original pixels through the column signal branch connected to the original pixels, and also charges the compensation pixels through the column signal branch connected to the compensation pixels, so that both the original pixels and the compensation pixels begin to emit light. The luminous B1 / B2 / B3 / B4 / B5 / B6 column compensation pixels compensate for the gaps formed by stretching in the A1 / A2 / A3 / A4 / A5 column original pixels; the luminous D1 / D2 / D3 / D4 / D5 row compensation pixels compensate for the gaps formed by stretching in the C1 / C2 / C3 / C4 / C5 row original pixels. The number of pixels displayed is doubled. Thereby, the resolution compensation of the display panel in the stretched state is achieved.

[0051] Embodiment 2

[0052] In one embodiment, the column signal branch line 25 includes a first column signal branch line 251 and a second column signal branch line 252;

[0053] The original pixels 11 in the same column of pixel units 10 are connected to the first column signal branch line 251 of the corresponding column;

[0054] The compensation pixels 12 in the same column of pixel units 10 are connected to the second column signal branch line 252 of the corresponding column.

[0055] In application, the row compensation pixel 121 and the column compensation pixel 122 are regarded as a compensation pixel as a whole, and synchronously receive the data signal. The column signal branch 25 includes a first column signal branch 251 and a second column signal branch 252. The first column signal branch 251 is used to charge the original pixel 11, and the second column signal branch 252 is used to charge the row compensation pixel 121 and the column compensation pixel 122. The column driving module 22 realizes the drive decoupling of the original pixel 11 and the compensation pixel 12 through the first column signal branch 251 and the second column signal branch 252. For example, after the pixel unit in the first row receives the row scanning signal, when the column driving module 22 sends a data signal to the first column signal branch 251 of the first column of the pixel unit in the first row, the original pixel A1C1 starts to be charged. When the column driving module 22 sends a data signal to the second column signal branch 251 of the first column of the pixel unit in the first row, the compensation pixel (including B1C1 and B1D1) starts to be charged.

[0056] Embodiment 3

[0057] In one embodiment, the column signal branch line 25 includes a first column signal branch line 251, a second column signal branch line 252 and a third column signal branch line 253;

[0058] The original pixels 11 in the same column of pixel units 10 are connected to the first column signal branch line 251 of the corresponding column;

[0059] The row compensation pixels 121 in the same column of pixel units 10 are connected to the second column signal branch line 252 of the corresponding column;

[0060] The column compensation pixels 122 in the same column of pixel units 10 are connected to the third column signal branch line 253 of the corresponding column.

[0061] In application, the row compensation pixel 121 and the column compensation pixel 122 can be used as two independent pixels to receive data signals respectively. The column signal branch 25 includes a first column signal branch 251, a second column signal branch 252 and a third column signal branch 253. The first column signal branch 251 is used to charge the original pixel 11, the second column signal branch 252 is used to charge the row compensation pixel 121, and the third column signal branch 253 is used to charge the column compensation pixel 122. The column driving module 22 realizes the drive decoupling of the original pixel 11 and the compensation pixel 12 through the first column signal branch 251 and the second column signal branch 252 / the third column signal branch 253. The drive decoupling of the row compensation pixel 121 and the column compensation pixel 122 is realized through the second column signal branch 252 and the third column signal branch 253. For example, after the pixel unit in the first row receives the row scanning signal, when the column driving module 22 sends a data signal to the first column signal branch line 251 of the first column of the pixel unit in the first row, the original pixel A1C1 starts to be charged. When the column driving module 22 sends a data signal to the second column signal branch line 252 of the first column of the pixel unit in the first row, the row compensation pixel B1C1 starts to be charged. When the column driving module 22 sends a data signal to the third column signal branch line 253 of the first column of the pixel unit in the first row, the column compensation pixel B1D1 starts to be charged.

[0062] In the embodiment of the present application, due to the time-sharing driving of the original pixel and the compensation pixel, different data signals can be written to the original pixel and the compensation pixel through the column driving module 22, so that the original pixel and the compensation pixel can be charged to different degrees, thereby achieving different brightness. In addition, the row compensation pixel 121 and the column compensation pixel 122 can also be driven separately, so that the row compensation pixel 121 and the column compensation pixel 122 can also display different brightness, further ensuring a better display effect.

[0063] In one embodiment, Figure 5 and 6 As shown, each column signal line 24 is connected to each column signal branch line 25 of the corresponding column via a switch module 26, and a controlled end of the switch module 26 is connected to the column driving module 22;

[0064] The column driving module 22 is further used to control the designated switch module 26 to be turned on, so that the data signal is output to the corresponding original pixel 11 and / or compensation pixel 12 through the designated column signal branch line 25 .

[0065] In application, the switch module 26 can be a switch tube, or a switch unit including a switch tube and other components. When the switch module 26 includes a switch tube, the controlled end of the switch tube is controlled by the column driver module 22, so that the column driver module 22 can realize the switching of the switch tube. Since each column signal branch line 25 is connected with a switch tube, when the switch tube is disconnected, the corresponding column signal branch line 25 is disconnected. At this time, the data signal newly sent by the column driver module 22 through the column signal cannot be transmitted to the corresponding pixel through the disconnected column signal branch line 25, so that the corresponding pixel will not be activated. On the contrary, when the switch tube is turned on, the corresponding column signal branch line 25 is connected. At this time, the data signal newly sent by the column driver module 22 through the column signal can be transmitted to the corresponding pixel through the connected column signal branch line 25, so that the corresponding pixel can be activated. In this way, the column driver module 22 can control the time-sharing activation of the original pixel and / or the compensation pixel by controlling the switching of the switch tube, and can also control the time-sharing activation of the original pixel and / or the row compensation pixel and / or the column compensation pixel.

[0066] In one embodiment, at least two control signal lines 27 are further included, the column driving module 22 is connected to the control signal line 27, the control signal line 27 is connected to the switch module 26, and the switch module 26 driving the original pixel 11 and the switch module 26 driving the compensation pixel 12 are respectively connected to different control signal lines 27.

[0067] In applications, such as Figure 5 As shown, when the column signal branch line 25 includes a first column signal branch line 251 and a second column signal branch line 252, each column pixel unit corresponds to two switch tubes and two corresponding control signal lines 27. The controlled end of the switch tube on each first column signal branch line 251 is connected to a control signal line, such as the control signal line SW1, and the controlled end of the switch tube on each second column signal branch line 252 is connected to another control signal line, such as the control signal line SW2. Therefore, when the column driving module 22 sends the first control signal through the control signal line SW1, the switch tubes on each first column signal branch line 251 can be turned on, so that all the original pixels can write data signals and start charging when receiving the row scanning signal. When the column driving module 22 sends the second control signal through the control signal line SW2, the switch tubes on each second column signal branch line 252 can be turned on, so that all the compensation pixels can write data signals and start charging when receiving the row scanning signal. The control signal transmitted on the control signal line may be a switch signal (Switch signal) for controlling the on and off of a switch tube (such as MOSFET, IGBT, etc.).

[0068] In applications, such as Figure 6As shown, when the column signal branch line 25 includes the first column signal branch line 251, the second column signal branch line 252 and the third column signal branch line 253, each column pixel unit corresponds to three switch tubes and three corresponding control signal lines 27. The controlled end of the switch tube on each column first column signal branch line 251 is connected to a control signal line, such as the control signal line SW1, the controlled end of the switch tube on each column second column signal branch line 252 is connected to another control signal line, such as the control signal line SW2, and the controlled end of the switch tube on each column third column signal branch line 253 is connected to the remaining control signal line, such as the control signal line SW3. Therefore, when the column driving module 22 sends the first control signal through the control signal line SW1, all the switch tubes on each column first column signal branch line 251 can be turned on, so that all original pixels can write data signals and start charging when receiving the row scanning signal. When the column driving module 22 sends the second control signal through the control signal line SW2, the switch tubes on the second column signal branch line 252 of each column can be turned on, so that all the row compensation pixels can write data signals and start charging when receiving the row scanning signal. When the column driving module 22 sends the third control signal through the control signal line SW3, the switch tubes on the third column signal branch line 253 of each column can be turned on, so that all the column compensation pixels can write data signals and start charging when receiving the row scanning signal.

[0069] In the application, the driving principle of the embodiment of the present application is described by taking the time-sharing driving of the original pixel 11, the row compensation pixel 121, and the column compensation pixel 122 as an example. Figure 7As shown, the original pixels and compensation pixels in a row of pixel units are controlled by the same row signal line (i.e., gate drive signal transmission line), and the same column signal line (i.e., source drive signal transmission line) is used for time-sharing charging. In the unstretched state, the SW1 signal maintains a high level, the SW2&SW3 signals maintain a low level, the switch tube controlled by the SW1 signal is normally open, and the switch tube corresponding to the SW2&SW3 signals is closed. At this time, the compensation pixel does not display color. The source drive signal S1 charges the pixels in the A1 column, the source drive signal S2 charges the pixels in the A2 column, and so on. In the stretched state, all column signal lines charge the original pixels, row compensation pixels, and column compensation pixels in the A column in a time-sharing manner, and the SW1&SW2&SW3 signals are output in a time-sharing manner when each row of gate drive signals is output. S1 charges the pixels in the A1 column when the SW1 signal is high, the source drive signal S1 charges the pixels in the B1C column when the SW2 signal is high, and the source drive signal S1 charges the pixels in the B1D column when the SW3 signal is high, and so on. If only the display is stretched in the row direction, the SW3 signal can be kept at a low level, the row compensation pixels of the compensation pixels emit light, and the column compensation pixels do not emit light. If only the display is stretched in the column direction, the SW2 signal can be kept at a low level, the column compensation pixels of the compensation pixels emit light, and the row pixels do not emit light, which is more flexible and suitable for different usage scenarios.

[0070] In applications, the display brightness of different pixels can be achieved by adjusting the voltage value output by the column signal line. For example, before stretching, the charging voltage of A1C1 white screen is 12V. After stretching, the charging voltage of A1C1 (data1) is 12V, the charging voltage of B1C1 (data2) can be set to 11V according to the brightness requirements, and the charging voltage of B1D1 (data3) can be set to 10.5V according to the brightness requirements. It is also possible to match some different algorithm processing of the screen to achieve better display effects.

[0071] Therefore, the original pixels, row compensation pixels and column compensation pixels are charged separately, and the brightness of row compensation pixels between pixel rows and column compensation pixels between pixel columns can be controlled separately, which can improve the screen display resolution and be suitable for different usage scenarios or stretching in different directions, so that the display brightness can be adjusted better during display. It can also be combined with different algorithm processing of some pictures to compensate the brightness of the original pixels or optimize the edges of graphics and text, so as to reduce the screen display granularity and achieve better display effects.

[0072] In one embodiment, a multiplexing circuit is further included, wherein the input end of the multiplexing circuit is connected to the control signal output end of the column driving module 22, and the output end of the multiplexing circuit is connected to the control signal line 27;

[0073] The multiplexing circuit is used to send an enable signal to the corresponding control signal line 27 according to the control signal of the column driving module 22, so as to turn on the switch module 26 connected to the control signal line 27.

[0074] In application, a multiplexing circuit can be set at the control signal output end of the column driving module 22 to divide one control signal into three control signals, and control the switch modules connected to each other through the control signal lines SW1-SW3. The multiplexing circuit can be designed in the surface of the display panel or on a thin film chip (Chip On Glass, COF).

[0075] In one embodiment, the length of the row compensation pixel 121 is consistent with that of the original pixel 11 in the row direction, and the length of the column compensation pixel 122 in the row direction is the sum of the lengths of the row compensation pixel 121 and the original pixel 11 in the row direction.

[0076] In application, in order to ensure that the arrangement of the luminous pixels is consistent with the natural state after the display panel is stretched, the length of the row compensation pixel 121 is consistent with that of the original pixel 11 in the row direction, and the length of the column compensation pixel 122 in the row direction is the sum of the lengths of the row compensation pixel 121 and the original pixel 11 in the row direction. The shape of each pixel unit can be consistent with the original pixel, ensuring a better display effect.

[0077] In one embodiment, the original pixel 11 and the compensated pixel 12 in the same pixel unit 10 have the same color, the pixel units 10 in the same column have the same color, the pixel units 10 in the same row have multiple colors and adjacent pixel units 10 have different colors.

[0078] In application, the original pixel 11 in a red pixel unit 10 is red, and the corresponding row compensation pixel 121 and column compensation pixel 122 are also red. The original pixel 11 in a green pixel unit 10 is green, and the corresponding row compensation pixel 121 and column compensation pixel 122 are also green. The original pixel 11 in a blue pixel unit 10 is blue, and the corresponding row compensation pixel 121 and column compensation pixel 122 are also blue. The pixel units 10 in the same column have a single color, such as any one of red, green, and blue. For a display panel that uses RGB to form an image, the pixel units 10 in the same row have three colors, namely red, green and blue, and the three colors appear alternately. Thus, adjacent pixel units 10 have different colors. For example, one side of a green pixel is red and the other side is blue.

[0079] Embodiment 4

[0080] An embodiment of the present application also provides a display panel, comprising the pixel control circuit described in any of the above embodiments.

[0081] In the application, in order to detect the state of the display panel and determine whether the display panel is in a natural state, a row stretched state, or a column stretched state, a sensor can be set in the peripheral area of ​​the display panel, and the stretched state of the display panel can be determined by monitoring the data of the sensor. The sensor can be a strain gauge sensor, a resistive sensor, a piezoelectric sensor, etc.

[0082] Embodiment 5

[0083] An embodiment of the present application further provides a display device, comprising the display panel described in any of the above embodiments.

[0084] In application, a display device is a display device having at least one function of displaying images, videos and other visual information. The display device may be a television, a computer monitor, a mobile phone, a tablet computer, a wearable device, etc. The embodiments of the present application do not limit the specific type of the display device.

[0085] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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 make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A pixel control circuit for a display panel, characterized in that: The display panel includes a plurality of pixel units, the pixel units are arranged in an array, each of the pixel units includes an original pixel and a compensation pixel, the compensation pixel includes a row compensation pixel and a column compensation pixel, the row compensation pixel is arranged between any two adjacent columns of original pixels, and the column compensation pixel is arranged between any two adjacent rows of original pixels; The pixel control circuit includes a row driving module, a column driving module, a plurality of row signal lines, a plurality of column signal lines and a plurality of column signal branch lines; The row driving module is connected to the row signal line, the column driving module is connected to the column signal line, each row signal line is connected to each pixel unit of the corresponding row, each column signal line is connected to each pixel unit of the corresponding column through at least two column signal branch lines, and the original pixel and the compensation pixel in each column of pixel units are respectively connected to different column signal branch lines of the corresponding column; The row driving module is used to output a row scanning signal to the pixel unit through the row signal line; The column driving module is used to output a data signal to the column signal line corresponding to the original pixel when the display panel is in a natural state, so that the original pixel is in an activated state; and to output a data signal to the column signal branch line corresponding to the original pixel and the compensation pixel respectively when the display panel is in a stretched state, so that the original pixel and the compensation pixel are in an activated state.

2. The pixel control circuit according to claim 1, characterized in that: The column signal branch line includes a first column signal branch line and a second column signal branch line; The original pixels in the pixel units of the same column are connected to the first column signal branch line of the corresponding column; The compensation pixels in the pixel units of the same column are connected to the second column signal branch line of the corresponding column.

3. The pixel control circuit according to claim 1, characterized in that: The column signal branch lines include a first column signal branch line, a second column signal branch line and a third column signal branch line; The original pixels in the pixel units of the same column are connected to the first column signal branch line of the corresponding column; The row compensation pixels in the pixel units of the same column are connected to the second column signal branch line of the corresponding column; The column compensation pixels in the pixel units of the same column are connected to the third column signal branch line of the corresponding column.

4. The pixel control circuit according to claim 1, characterized in that: The column driver module is also used for: When the display panel is in a row stretching state, outputting data signals to the column signal lines corresponding to the original pixels and the row compensation pixels, respectively, so that the original pixels and the row compensation pixels are in an activated state; When the display panel is in a column stretching state, outputting data signals to the column signal lines corresponding to the original pixels and the column compensation pixels, respectively, so that the original pixels and the column compensation pixels are in an activated state; When the display panel is in a state where rows and columns are stretched simultaneously, data signals are output to the column signal lines corresponding to the original pixels, the row compensation pixels, and the column compensation pixels, respectively, so that the original pixels, the row compensation pixels, and the column compensation pixels are in an activated state.

5. The pixel control circuit according to claim 1, characterized in that: Each of the column signal lines is connected to each column signal branch line of the corresponding column via a switch module, and a controlled end of the switch module is connected to the column driving module; The column driving module is further used to control the designated switch module to be turned on, so that the data signal is output to the corresponding original pixel and / or compensation pixel through the designated column signal branch line.

6. The pixel control circuit according to claim 5, characterized in that: It also includes at least two control signal lines, the column driving module is connected to the control signal lines, the control signal lines are connected to the switch module, and the switch module driving the original pixel and the switch module driving the compensation pixel are respectively connected to different control signal lines.

7. The pixel control circuit according to claim 6, characterized in that: It also includes a multiplexing circuit, wherein the input end of the multiplexing circuit is connected to the control signal output end of the column driving module, and the output end of the multiplexing circuit is connected to the control signal line; The multiplexing circuit is used for sending an enable signal to a corresponding control signal line according to a control signal of the column driving module, so as to turn on a switch module connected to the control signal line.

8. The pixel control circuit according to any one of claims 1 to 7, characterized in that: The length of the row compensation pixel is consistent with that of the original pixel in the row direction, and the length of the column compensation pixel in the row direction is the sum of the lengths of the row compensation pixel and the original pixel in the row direction.

9. The pixel control circuit according to claim 1, characterized in that: The original pixel and the compensated pixel in the same pixel unit have the same color, the pixel units in the same column have the same color, the pixel units in the same row have multiple colors and adjacent pixel units have different colors.

10. A display panel, characterized in that: The method comprises a pixel control circuit as claimed in any one of claims 1 to 9.

Images