Display device drive circuit and display device

Abstract

The display device includes a driving circuit and a display device. The driving circuit includes a first row driving module (100) connected to the positive electrode of each red display element and configured to receive a first operating voltage and provide a first scanning signal to the red display elements in each row; a second row driving module (200) connected to the positive electrode of each green display element and the positive electrode of each blue display element and configured to receive a second operating voltage and provide a second scanning signal to the green display elements and the blue display elements in each row; and a power supply module connected to the first row driving module (100) and the second row driving module (200), respectively, configured to output the first operating voltage to the first row driving module (100) and the second operating voltage to the second row driving module (200). By adopting a method of supplying power to the red display element separately, the voltage distributed to the three primary color display elements is within a reasonable range, thereby reducing energy loss and the temperature of the display device.

Description

Technical Field

[0001] This application relates to the field of display technology, and particularly to a driving circuit and a display device of a display.

Background Art

[0002] An LED display uses light-emitting diodes (LEDs) as basic light-emitting elements (pixel dots), and a control circuit and a driving circuit control the lighting and extinguishing of each pixel dot or their brightness levels, so that a display having related pixel dots can display various information required by people. The LED display has advantages such as a wide range of uses, vivid colors, high brightness, and excellent stability, and is widely used in fields such as advertising, information dissemination, and sports competitions.

[0003] However, an LED display usually includes three-color LEDs of red, green, and blue. The three primary-color LEDs have different on-voltage drops. The on-voltage drop of the red LED is usually lower than those of the green LED and the blue LED. In order to make the operating characteristics of the three primary-color LEDs compatible, a 5V voltage is usually adopted to supply power to the three primary-color LEDs. However, since the on-voltage drop of the red LED is lower than those of the blue and green LEDs, for the purpose of protecting the red LED and the corresponding column drive, a resistor is connected in series between the negative electrode of the red LED and the corresponding column drive to separate part of the voltage and heat. This increases wasteful energy loss, generates a large amount of heat, further increases the overall temperature of the LED display, and accelerates the deterioration of the device.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Based on this, in view of the problems in the prior art that the method of supplying power to a display element with a single voltage causes energy loss and an increase in the temperature of the display device, it is necessary to provide a driving circuit and a display device of the display. <0OO0020>

Means for Solving the Problems

[0005] To achieve the above objective, this application provides a drive circuit for a display device, the display device comprising a plurality of pixel units arranged in rows and columns, each of the pixel units comprising a red display element, a green display element, and a blue display element, the negative terminals of display elements of the same color in the same column being connected to each other, and the drive circuit for the display device is, A first row drive module is connected to the positive terminal of each of the aforementioned red indicator elements and configured to receive a first operating voltage and provide a first scanning signal to the aforementioned red indicator elements in each row. A second row drive module is connected to the positive terminal of each of the green display elements and the positive terminal of each of the blue display elements, and is configured to receive a second operating voltage and provide a second scanning signal to the green display elements and the blue display elements of each row. The system includes a power supply module connected to the first row drive module and the second row drive module, respectively, and configured to output a first operating voltage to the first row drive module and a second operating voltage to the second row drive module.

[0006] In one embodiment, the power supply module is A first switch power supply unit whose input terminal is used to receive external AC power and which is used to output a power supply voltage based on the external AC power, A first voltage regulator unit, whose input terminal is connected to the output terminal of the first switch power supply unit, is used to receive the power supply voltage and to output the first operating voltage to the first row drive module based on the power supply voltage, The system includes a second voltage regulator unit, the input terminal of which is connected to the output terminal of the first switch power supply unit, which is used to receive the power supply voltage and to output the second operating voltage to the second row drive module based on the power supply voltage.

[0007] In one embodiment, the power supply voltage is greater than the first operating voltage, and the first operating voltage is less than or equal to the second operating voltage.

[0008] In one embodiment, both the first pressure regulating unit and the second pressure regulating unit include a DC / DC circuit.

[0009] In one embodiment, the power supply module is A second switch power supply unit, the first output terminal of which is connected to the second row drive module, and the input terminal of which is used to receive external AC power and to output the second operating voltage based on the external AC power, The system includes a third voltage regulator unit, the input terminal of which is connected to the second output terminal of the second switch power supply unit, which is used to receive the second operating voltage and to output the first operating voltage to the first row drive module based on the second operating voltage.

[0010] In one embodiment, the third pressure regulating unit includes a DC / DC circuit.

[0011] In one embodiment, the first row drive module is: It includes a plurality of first row channels that correspond one-to-one to the plurality of row pixel units, The positive electrode of each red display element in the pixel unit of each row is connected to the corresponding first row channel.

[0012] In one embodiment, the second row drive module is It includes a plurality of second row channels that correspond one-to-one with the plurality of row pixel units, The positive terminal of each green display element and the positive terminal of each blue display element in the pixel unit of each row are connected to the corresponding second row channel, respectively.

[0013] In one embodiment, the drive circuit for the display device is: The system further includes a column drive module connected to the negative terminal of each row of the same colored display element, respectively, and the power supply module, and configured to receive the second operating voltage and provide a column drive signal to the display element in each row.

[0014] This application further provides a display device including the driving circuit of the above display device.

Advantages of the Invention

[0015] The driving circuit of the above display device controls the red display elements individually by the first row driving module, inputs a first operating voltage to the first row driving module to realize power supply, controls the green and blue display elements by the second row driving module, inputs a second operating voltage to the second row driving module to realize power supply, and adopts a method of individually supplying power to the red display elements. By doing so, the voltages distributed to the three primary color display elements can be within a reasonable range, thereby reducing the energy loss and the temperature of the display device.

Brief Description of the Drawings

[0016] To more clearly explain the technical solutions in the embodiments of this application or the prior art, the following briefly introduces the attached drawings that need to be used in the description of the embodiments or the prior art. As is clear, the attached drawings in the following description are only some embodiments of this application. For those skilled in the art, based on these attached drawings without creative effort, other attached drawings can also be obtained.

[0017] [Figure 1] It is one of the schematic diagrams of the structure of the driving circuit of the display device according to an embodiment. [Figure 2] It is the second of the schematic diagrams of the structure of the driving circuit of the display device according to an embodiment. [Figure 3] It is the third of the schematic diagrams of the structure of the driving circuit of the display device according to an embodiment. [[ID=�27]] [Figure 4] It is the fourth of the schematic diagrams of the structure of the driving circuit of the display device according to an embodiment. [Figure 5] It is the fifth of the schematic diagrams of the structure of the driving circuit of the display device according to an embodiment.

Modes for Carrying Out the Invention

[0018] To facilitate the understanding of this application, the following provides a more comprehensive description of this application with reference to the relevant drawings. The embodiments of this application are shown in the accompanying drawings, but this application can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, the purpose of providing these embodiments is to make the disclosure of this application more complete.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art. The terms used in this specification are for the purpose of describing particular embodiments only and are not intended to limit this application.

[0020] When used, the singular forms "a", "one", "the" may include the plural unless the context clearly dictates otherwise. Terms such as "comprising" or "having" specify the presence of the described features, wholes, steps, operations, components, parts, or combinations thereof, but it should also be understood that they do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Also, in this specification, the term "and / or" includes any and all combinations of the associated listed items.

[0021] This application provides a driving circuit for a display device, the display device including a plurality of pixel units arranged in rows and columns, each pixel unit including a red display element, a green display element, and a blue display element, and the negative electrodes of the display elements of the same color in the same column being connected to each other.

[0022] Here, each display element is a light-emitting diode (LED), which is a solid-state semiconductor device capable of converting electrical energy into visible light. The semiconductor wafer inside consists of two parts: a P-type semiconductor and an N-type semiconductor. When the two types of semiconductors are connected, a single PN junction can be formed. When current acts on the wafer through lead wires, electrons are pushed into the P-region, where electrons and holes recombine, emitting energy as photons, which lights up the LED. However, the red, green, and blue display elements can constitute a single pixel unit, and as a display unit for a display device, it can represent multiple diverse colors. Furthermore, multiple pixel units can be arranged in an array to form an LED display module, and the methods for driving the operation of the LED display module are mainly divided into static drive and scanning drive. Here, static driving involves connecting the positive terminals of all display elements in each pixel unit to the voltage input terminal of the LED display module, while simultaneously connecting the negative terminals of all display elements to a row drive integrated circuit (IC). Static driving does not require a row drive IC. On the other hand, scanning driving involves connecting the positive terminals of all display elements in all pixel units in the same row in parallel and electrically connecting them to the row drive IC, while simultaneously connecting the negative terminals of all display elements in all pixel units in the same column in parallel and electrically connecting them to the row drive IC. Because the row drive IC has a constant voltage drop, the input voltage applied to the row drive IC can be selected from 4.5V to 5V to prevent chromatic aberration in different areas of the LED display module due to voltage drop issues. However, since the positive terminals of all display elements in the same row are connected in parallel, the voltage received by each display element in the same row is the same.

[0023] However, the forward voltage drop of the red display element is generally 1.8V to 2.4V, and the forward voltage drop of the green and blue display elements is generally 2.4V to 3.6V. To protect the display elements and the column drive IC, a series resistor is usually used to isolate some of the voltage and heat between the red display element and the column drive IC, but this method increases unnecessary energy loss. When the design area of ​​the LED display module is relatively large or the design brightness is relatively high, the energy consumed by the LED display module also increases, and the energy loss in the wire between the external power supply and the LED display module increases, while it becomes necessary to select a power supply wire made of a thicker material, which increases the cost of the device. Therefore, in order to overcome the defects of the single-voltage input described above, this application adopts a method of supplying power separately to the positive terminal of the red display element and the positive terminals of the green and blue display elements.

[0024] Furthermore, referring to Figure 1, the drive circuit of the display device includes a first row drive module 100, a second row drive module 200, and a power supply module 300.

[0025] Here, the first row drive module 100 is connected to the positive terminal of each of the red display elements and is used to receive a first operating voltage and to provide a first scanning signal to the red display elements of each row. The second row drive module 200 is connected to the positive terminal of each of the green display elements and each of the blue display elements and is used to receive a second operating voltage and to provide a second scanning signal to the green display elements and the blue display elements of each row. The power supply module 300 is connected to the first row drive module 100 and the second row drive module 200, respectively and is used to output a first operating voltage to the first row drive module 100 and to output a second operating voltage to the second row drive module 200.

[0026] To facilitate understanding, Figure 1 shows the red display element as R, the green display element as G, and the blue display element as B. Because the forward voltage drop of the red display element is smaller than that of the green and blue display elements, the first row drive module 100 is used individually to drive the operation of the red display elements in each row, and the second row drive module 200 is used to drive the operation of the green and blue display elements in each row. This allows the resistor connected in series with the negative terminal of the red display element in each column to be removed, thereby reducing energy loss and the overall temperature of the display device, in order to keep the voltage drop distributed to each display element within a reasonable range.

[0027] Specifically, the voltage supplied by the power supply module 300 to the first row drive module 100 is defined as the first operating voltage VCC1, which may optionally be between 2.8V and 3.0V, and this range corresponds to the forward on-voltage drop when the red display element is operating normally. However, the voltage supplied by the power supply module 300 to the second row drive module 200 is defined as the second operating voltage VCC2, which may optionally be between 3.8V and 4.0V, and this range similarly corresponds to the forward on-voltage drop when the green and blue display elements are operating normally. As a result, the positive terminals of each display element receive relatively reasonable voltages, and due to energy loss and a decrease in the display device temperature, the design brightness of each display element is 10% higher than that of conventional single-voltage input methods.

[0028] Furthermore, since the scanning drive is achieved by lighting up the display elements of different rows in a time-division manner, when the first row drive module 100 and the second row drive module 200 receive the row control signal, the row control signal is a one-period square wave signal, the first scanning signal output by the first row drive module 100 is a periodic signal that drives only the red display element of one row to turn on in each time period, and the second scanning signal output by the second row drive module 200 is also a periodic signal that similarly drives only the green and blue display elements of one row to turn on in each time period. By scanning row by row and synchronously converting the control signals of each column, as long as the scanning frequency is sufficiently fast, a complete screen can be seen on the LED display module due to the lingering characteristics of the human eye.

[0029] In the above example, the red display element is individually controlled by the first row drive module 100, power is supplied to the first row drive module 100 by inputting a first operating voltage, the green and blue display elements are controlled by the second row drive module 200, power is supplied to the second row drive module 200 by inputting a second operating voltage, and power is supplied to the red display element individually. By adopting this method, the voltage distributed to the three primary color display elements can be kept within a reasonable range, thereby reducing energy loss and the temperature of the display device.

[0030] In one embodiment, referring to Figure 1, the first row drive module 100 includes a plurality of first row channels that correspond one-to-one to a plurality of row pixel units, and the positive electrode of each of the red display elements in each row pixel unit is connected to the corresponding first row channel.

[0031] In the 4x4 display matrix shown in Figure 1, the positive terminals of all red display elements in the same row must be connected in parallel and electrically connected to the same first row channel, while the positive terminals of red display elements in different rows must be connected to different first row channels.

[0032] In one embodiment, the second row drive module 200 includes a plurality of second row channels that correspond one-to-one with a plurality of row pixel units, and the positive terminal of each green display element and the positive terminal of each blue display element in each row pixel unit are connected to the corresponding second row channel, respectively.

[0033] The positive terminals of all green and blue display elements in the same row must be connected in parallel and electrically connected to the same second row channel, while the positive terminals of green and blue display elements in different rows must be connected to different second row channels.

[0034] In one embodiment, continuing to refer to Figure 1, the drive circuit of the display device further includes a column drive module 400, which is connected to the negative terminals of the same-colored display elements in each column and to the power supply module 300, respectively, and is used to receive a second operating voltage and to provide a column drive signal to the display elements in each column.

[0035] Here, the column drive module 400 includes multiple column channels that correspond one-to-one to multiple column pixel units, and the negative poles of the same color display elements in each column pixel unit are connected to the corresponding column channels, respectively. When the first row drive module 100 and the second row drive module 200 receive row control signals and drive each row's display element to turn on in a time-division manner, the column drive module 400 receives the column control signals and provides column drive signals to the corresponding display elements based on the column control signals to control the brightness of the corresponding display elements. For example, in Figure 1, if the time periods during which the first row drive module 100 and the second row drive module 200 output high levels of channels to the positive terminals of the display elements in the first, second, third, and fourth rows are designated as the first time period, second time period, third time period, and fourth time period, then to light up the red display element R in the second row, second column and the blue display element B in the fourth row, fourth column, by controlling the column control signal, the column drive module 400 can set the red column channel in the second column to a low level in the second time period, the blue column channel in the fourth column to a low level in the fourth time period, and the remaining column channels to a high level in the remaining time periods, thereby achieving the illumination of the target display elements. At the same time, the column drive module 400 can control the brightness of the target display elements by controlling the magnitude of the drive current and the duty cycle in correspondence.

[0036] In one embodiment, as shown in Figure 2, the power supply module includes a first switch power supply unit 301, a first voltage regulating unit 302, and a second voltage regulating unit 303. The input terminal of the first switch power supply unit 301 is used to receive external AC power, and the first switch power supply unit 301 is used to output a power supply voltage based on the external AC power. The input terminal of the first voltage regulating unit 302 is connected to the output terminal of the first switch power supply unit 301, and the first voltage regulating unit 302 is used to receive the power supply voltage and output a first operating voltage to the first row drive module 100 based on the power supply voltage. The input terminal of the second voltage regulating unit 303 is connected to the output terminal of the first switch power supply unit 301, and the second voltage regulating unit 303 is used to receive the power supply voltage and output a second operating voltage to the second row drive module 200 based on the power supply voltage.

[0037] To make it understandable, the first switch power supply unit 301 includes a first switch power supply that steps down, rectifies, and filters external AC power to obtain a DC voltage, transmits it to an output terminal, and outputs a power supply voltage VCC, which further feeds back to the input terminal by varying the output voltage to achieve the objective of stably outputting the power supply voltage. Furthermore, the first switch power supply unit 301 includes two output terminals: one connected to a reference ground and another connected to a first voltage regulator unit 302, which converts the input power supply voltage VCC into a first operating voltage VCC1 to power the first row drive module 100, and the other output terminal of the first switch power supply unit 301 is further connected to a second voltage regulator unit 303, which converts the input power supply voltage VCC into a second operating voltage VCC2 to power the second row drive module 200.

[0038] In one embodiment, the power supply voltage is greater than the first operating voltage, and the first operating voltage is less than or equal to the second operating voltage.

[0039] Selectively, the power supply voltage VCC may be 12V, 24V, 36V, or 48V, the first operating voltage VCC1 may be 2.8V to 3.0V, and the second operating voltage VCC2 may be 3.8V to 4.0V. By setting the power supply voltage VCC to be greater than the first operating voltage VCC1 and greater than the second operating voltage VCC2, the power supply voltage VCC is input at a high voltage, reducing the current, further reducing the amount of power supply wire, which is advantageous for saving device costs, and the wire voltage drop does not affect the voltage drop at the display terminal. However, the reason why the first operating voltage VCC1 is less than or equal to the second operating voltage VCC2 is to set the forward voltage of each of the three primary color display elements within an appropriate range, and to make the voltage drop distributed to each display element more rational.

[0040] In one embodiment, both the first and second voltage regulating units include a DC / DC circuit. Here, the DC / DC circuit is capable of converting a DC voltage of a constant magnitude into an adjustable DC voltage, while also having the features of voltage stabilization, current stabilization, power control, and protection of the DC line. Thus, the first voltage regulating unit can stably step down the power supply voltage VCC to a first operating voltage VCC1 using the DC / DC circuit, and the second voltage regulating unit can also stably step down the power supply voltage VCC to a second operating voltage VCC2 using the DC / DC circuit.

[0041] In one embodiment, as shown in Figure 3, the power module includes a second switch power unit 304 and a third voltage regulator 305, the first output terminal of the second switch power unit 304 being connected to a second row drive module 200, the input terminal of the second switch power unit 304 being used to receive external AC power, and the second switch power unit 304 being used to output a second operating voltage based on the external AC power. The input terminal of the third voltage regulator 305 being connected to a second output terminal of the second switch power unit 304, the third voltage regulator 305 being used to receive a second operating voltage and to output a first operating voltage to the first row drive module 100 based on the second operating voltage.

[0042] To make it understandable, the second switch power supply unit 304 includes a second switch power supply that converts external AC power to a DC voltage and outputs it, and the second switch power supply unit 304 includes three output terminals, the first output terminal is connected to the second row drive module 200 and supplies power to the second row drive module 200 as the output DC voltage VCC2. The second output terminal is connected to the third voltage regulating unit 305, which converts the input second voltage VCC2 to a first voltage VCC1 and supplies power to the first row drive module 100. The third output terminal is connected to reference ground. Here, the second voltage VCC2 is greater than or equal to the first voltage VCC1, and selectively, the first voltage VCC1 may be 2.8V to 3.0V and the second voltage VCC2 may be 3.8V to 4.0V. In other embodiments, the third voltage regulating unit includes a DC / DC circuit, which can use the DC / DC circuit to stably reduce the second operating voltage VCC2 to the first operating voltage VCC1.

[0043] By changing the internal structure of the power module, the sources of the first operating voltage VCC1 and the second operating voltage VCC2 change, but the forward voltage distributed to each display element can be made to meet their respective on-voltage drop ranges, effectively reducing wasted energy loss, effectively reducing the temperature of the display device under equivalent conditions, and allowing the selection of relatively thin power supply wires, thereby lowering application costs and significantly improving the overall brightness of the device.

[0044] In one embodiment, as shown in Figure 4, the power supply module includes a third switch power supply unit 306 connected to a first row drive module 100 and a second row drive module 200, respectively. The first output terminal of the third switch power supply unit 306 inputs a first operating voltage VCC1 to the first row drive module 100, the second output terminal of the third switch power supply unit 306 inputs a second operating voltage VCC2 to the second row drive module 200, and the third output terminal of the third switch power supply unit 306 is connected to a reference ground.

[0045] In one embodiment, as shown in Figure 5, the power supply module includes a fourth switch power supply unit 307 and a fifth switch power supply unit 308, wherein the fourth switch power supply unit 307 is connected to the first row drive module 100, the first output terminal of the fourth switch power supply unit 307 inputs a first operating voltage VCC1 to the first row drive module 100, and the second output terminal of the fourth switch power supply unit 307 is connected to reference ground. The fifth switch power supply unit 308 is connected to the second row drive module 200, the first output terminal of the fifth switch power supply unit 308 inputs a second operating voltage VCC2 to the second row drive module 200, and the second output terminal of the fifth switch power supply unit 308 is connected to reference ground.

[0046] This application further provides a display device including a drive circuit for the display device described in the above embodiment. Based on the above drive circuit for the display device, the display device can significantly improve the overall brightness of the device, effectively reduce wasted energy loss, and lower the temperature of the device.

[0047] In this specification, any reference to terms such as “several examples,” “other examples,” or “ideal examples” means that certain features, structures, materials, or characteristics described in relation to this example or example are included in at least one example or example of this application. In this specification, illustrative references to the above terms do not necessarily mean the same example or example.

[0048] Any combination of the technical features of the above embodiments is possible. For the sake of brevity, not all possible combinations of the technical features of the above embodiments have been described, but as long as these combinations of technical features are inconsistent, they should be considered to fall within the scope of this specification.

[0049] The embodiments described above illustrate some of the embodiments of this application, and while their descriptions are more specific and detailed, they do not allow for the understanding of limitations on the claims. Furthermore, those skilled in the art can make several modifications and improvements without departing from the concept of this application, and these fall within the scope of protection. Therefore, the scope of protection of this patent application shall be in accordance with the attached claims. [Explanation of Symbols]

[0050] First row drive module 100, second row drive module 200, power supply module 300, column drive module 400, first switch power supply unit 301, first pressure regulating unit 302, second pressure regulating unit 303, second switch power supply unit 304, third pressure regulating unit 305, third switch power supply unit 306, fourth switch power supply unit 307, fifth switch power supply unit 308.

Claims

1. A drive circuit for a display device, wherein the display device includes a plurality of pixel units arranged in rows and columns, each of the pixel units includes a red display element, a green display element, and a blue display element, the negative terminals of display elements of the same color in the same column are connected to each other, and the drive circuit for the display device is, A first row drive module is connected to the positive terminal of each of the aforementioned red display elements and configured to receive a first operating voltage and provide a first scanning signal to the aforementioned red display elements in each row. A second row drive module is connected to the positive terminal of each of the green display elements and the positive terminal of each of the blue display elements, and is configured to receive a second operating voltage and provide a second scanning signal to the green display elements and the blue display elements of each row. A power supply module connected to the first row drive module and the second row drive module, respectively, configured to output a first operating voltage to the first row drive module and a second operating voltage to the second row drive module, Each row includes the negative terminal of a display element of the same color, and a column drive module connected to the power supply module, respectively, which is configured to receive the second operating voltage and provide a column drive signal to the display elements of each row. A drive circuit for a display device, characterized in that the first operating voltage is 2.8V to 3.0V, and the second operating voltage is 3.8V to 4.0V.

2. The aforementioned power supply module is A first switch power supply unit whose input terminal is used to receive external AC power and which is used to output a power supply voltage based on the external AC power, A first voltage regulator unit, whose input terminal is connected to the output terminal of the first switch power supply unit, is used to receive the power supply voltage and to output the first operating voltage to the first row drive module based on the power supply voltage, The drive circuit for the display device according to claim 1, further comprising: a second voltage regulator unit whose input terminal is connected to the output terminal of the first switch power supply unit, which receives the power supply voltage and is used to output the second operating voltage to the second row drive module based on the power supply voltage.

3. The drive circuit for the display device according to claim 2, characterized in that the power supply voltage is greater than the first operating voltage, and the first operating voltage is less than or equal to the second operating voltage.

4. The drive circuit for the display device according to claim 3, characterized in that both the first pressure regulating unit and the second pressure regulating unit include a DC / DC circuit.

5. The aforementioned power supply module is A second switch power supply unit, the first output terminal of which is connected to the second row drive module, and the input terminal of which is used to receive external AC power and to output the second operating voltage based on the external AC power, A drive circuit for a display device according to claim 1, characterized in that it includes a third voltage regulator unit whose input terminal is connected to the second output terminal of the second switch power supply unit, which is used to receive the second operating voltage and to output the first operating voltage to the first row drive module based on the second operating voltage.

6. The drive circuit for the display device according to claim 5, characterized in that the third pressure regulating unit includes a DC / DC circuit.

7. The first row drive module is, It includes a plurality of first row channels that correspond one-to-one to the plurality of row pixel units, The drive circuit for the display device according to claim 1, characterized in that the positive electrode of each red display element in the pixel unit of each row is connected to the corresponding first row channel.

8. The second row drive module described above is: It includes a plurality of second row channels that correspond one-to-one with the plurality of row pixel units, The drive circuit for the display device according to claim 1, characterized in that the positive electrode of each green display element and the positive electrode of each blue display element in the pixel unit of each row are connected to the corresponding second row channel, respectively.

9. A display device characterized by including a drive circuit for a display device according to any one of claims 1 to 8.

Images