Patent Publication Number: US-11043153-B2

Title: Control circuit board, additional circuit board and display device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Chinese Patent Application No. 201910138431.7, filed on Feb. 25, 2019, the disclosure of which is incorporated herein by reference in its entirety as part of the present application. 
     TECHNICAL FIELD 
     The embodiments of the present disclosure relate to a control circuit board, an additional circuit board and a display device. 
     BACKGROUND 
     Currently, more and more manufacturers are promoting the platform-based design of display products. The platform-based design may improve the production efficiency, reduce the production costs, and improve the versatility of the products. For example, the platform-based design may promote the serializing of the display products, and some components may be shared between the display products of a same series. 
     SUMMARY 
     At least one embodiment of the present disclosure provides a control circuit board, comprising a timing control circuit, the timing control circuit is configured to read a configuration code from a storage circuit on an additional circuit board outside the control circuit board, the configuration code comprises a first code for configuring the timing control circuit, and the timing control circuit is further configured to generate, based on the first code, a control signal for controlling a display panel. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the timing control circuit is further configured to distribute a remaining configuration code other than the first code in the configuration code to an outside of the timing control circuit. 
     For example, the control circuit board provided by an embodiment of the present disclosure further comprises a power management circuit, the configuration code further comprises a second code for configuring the power management circuit, and the power management circuit is configured to obtain the second code from the timing control circuit and generate, based on the second code, a voltage signal for driving the display panel. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the timing control circuit is further configured to provide a data signal to a data driving circuit on the additional circuit board. 
     For example, the control circuit board provided by an embodiment of the present disclosure further comprises a data signal adjusting circuit, the configuration code further comprises a third code for configuring the data signal adjusting circuit, the data signal adjusting circuit is configured to obtain the third code from the timing control circuit and generate, based on the third code, a gamma reference voltage configured to be applied to the data driving circuit on the additional circuit board. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the timing control circuit comprises a timing controller. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the power management circuit comprises a power management integrated circuit. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the data signal adjusting circuit comprises a gamma buffer. 
     For example, in the control circuit board provided by an embodiment of the present disclosure, the timing control circuit comprises a binary synchronization serial bus interface, and the timing control circuit distributes a remaining configuration code other than the first code in the configuration code to the outside of the timing control circuit through the binary synchronization serial bus interface. 
     At least one embodiment of the present disclosure further provides an additional circuit board, which is configured to be bonded to a display panel and comprises a data driving circuit and a storage circuit, the storage circuit is configured to store a configuration code, and the configuration code is capable of being read by a control circuit board to configure the control circuit board, and the data driving circuit is configured to provide a grayscale voltage signal to the display panel. 
     For example, in the additional circuit board provided by an embodiment of the present disclosure, the configuration code comprises a first code for configuring the timing control circuit, and the timing control circuit is configured to generate, based on the first code, a control signal for controlling the display panel. 
     For example, in the additional circuit board provided by an embodiment of the present disclosure, the configuration code comprises a second code for configuring a power management circuit, and the power management circuit is configured to generate, based on the second code, a voltage signal for driving the display panel. 
     For example, in the additional circuit board provided by an embodiment of the present disclosure, the configuration code comprises a third code for configuring a data signal adjusting circuit, and the data signal adjusting circuit is configured to generate, based on the third code, a gamma reference voltage configured to be applied to the data driving circuit. 
     For example, the additional circuit board provided by an embodiment of the present disclosure further comprises a serial peripheral interface, and the configuration code stored in the storage circuit is read through the serial peripheral interface. 
     At least one embodiment of the present disclosure further provides a display device, which comprises an control circuit board provided by any embodiment of the present disclosure, an additional circuit board provided by any embodiment of the present disclosure and a display panel, the additional circuit board is bonded to the display panel, and the additional circuit board is in signal connection with the control circuit board. 
     For example, the display device provided by an embodiment of the present disclosure further comprise a flexible circuit board, and the control circuit board is in signal connection with the additional circuit board through the flexible circuit board. 
     At least one embodiment of the present disclosure further provides a display device, which comprises an additional circuit board provided by any embodiment of the present disclosure and a display panel, and the additional circuit board is bonded to the display panel. 
     At least one embodiment of the present disclosure further provides a display device, comprising a control circuit board, an additional circuit board and a display panel, the additional circuit board is configured to be bonded to the display panel and comprises a data driving circuit and a storage circuit, the storage circuit is configured to store a configuration code, the configuration code is capable of being read by the control circuit board to configure the control circuit board, and the data driving circuit is configured to provide a grayscale voltage signal to the display panel, the control circuit board comprises a timing control circuit, a power management circuit and a data signal adjusting circuit, the timing control circuit is configured to read the configuration code from the storage circuit on the additional circuit board, the configuration code comprises a first code for configuring the timing control circuit, a second code for configuring the power management circuit, and a third code for configuring the data signal adjusting circuit, the timing control circuit is further configured to generate, based on the first code, a control signal for controlling the display panel and distribute a remaining configuration code other than the first code in the configuration code to an outside of the timing control circuit, the power management circuit is configured to obtain the second code from the timing control circuit and generate, based on the second code, a voltage signal for driving the display panel, and the data signal adjusting circuit is configured to obtain the third code from the timing control circuit and generate, based on the third code, a gamma reference voltage configured to be applied to the data driving circuit on the additional circuit board. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to clearly illustrate the technical solution of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described in the following; it is obvious that the described drawings are only related to some embodiments of the present disclosure and thus are not limitative of the present disclosure. 
         FIG. 1  is a schematic diagram of a display device; 
         FIG. 2  is a schematic diagram of an example of a control circuit board in the display device of  FIG. 1 ; 
         FIG. 3  is a schematic diagram of a display device provided by some embodiments of the present disclosure; 
         FIG. 4  is a schematic diagram of a control circuit board and an additional circuit board provided by some embodiments of the present disclosure; 
         FIG. 5  is a particular circuit diagram of a control circuit board and an additional circuit board provided by some embodiments of the present disclosure; 
         FIG. 6  is a schematic diagram of a data driving circuit provided by some embodiments of the present disclosure; 
         FIG. 7  is a schematic diagram of another data driving circuit provided by some embodiments of the present disclosure; 
         FIG. 8  is a schematic diagram of another display device provided by some embodiments of the present disclosure; and 
         FIG. 9  is a schematic diagram of a control method provided by some embodiments of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are only part of the embodiments of the present disclosure, but not all the embodiments. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of the present disclosure. 
     Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms “first,” “second,” etc., which are used in the description and the claims of the present application for invention, are not intended to indicate any sequence, amount or importance, but distinguish various components. Also, the terms such as “a,” “an,” etc., are not intended to limit the amount, but indicate the existence of at least one. The terms “comprise,” “comprising,” “include,” “including,” etc., are intended to specify that the elements or the objects stated before these terms encompass the elements or the objects and equivalents thereof listed after these terms, but do not preclude the other elements or objects. The phrases “connect”, “connected”, etc., are not intended to define a physical connection or mechanical connection, but may include an electrical connection, directly or indirectly. “On,” “under,” “right,” “left” and the like are only used to indicate relative position relationship, and when the position of the object which is described is changed, the relative position relationship may be changed accordingly. 
       FIG. 1  is a schematic diagram of a display device, and the display device includes a display panel and a drive circuit system thereof. As shown in  FIG. 1 , the drive circuit system for the display panel includes a control circuit board (CPCB), an X-direction circuit board (XPCB) and a Y-direction circuit board (YPCB).  FIG. 2  is a schematic diagram of an example of the control circuit board CPCB of  FIG. 1 . For example, as shown in  FIG. 2 , the control circuit board CPCB includes a timing controller TCON, a storage chip Flash, a power management chip PMIC and a gamma buffer Gamma. It should be noted that, in the embodiments of the present disclosure, in order to distinguish the X-direction circuit board (XPCB) from the Y-direction circuit board (YPCB), the X-direction circuit board is referred to as the first circuit board, and the Y-direction circuit board is referred to as the second circuit board, and this is the same for the following embodiments, which will not be repeated hereinafter. 
     For example, the timing controller TCON of the control circuit board CPCB is configured to generate various control signals for controlling the display panel. The power management chip PMIC is configured to generate various working voltages required by the display panel; and the gamma buffer Gamma is configured to generate a gamma reference voltage. For example, the storage chip Flash stores a configuration code for configuring the timing controller TCON. For example, when the display device is energized, the timing controller TCON can read the configuration code from the storage chip Flash to complete a configuration operation. For example, the power management chip PMIC and the gamma buffer Gamma can respectively store corresponding configuration codes, and when the display device is energized, the power management chip PMIC and the gamma buffer Gamma can respectively read corresponding configuration codes to complete their own configuration operations. 
     For example, the first circuit board XPCB is in signal connection with the control circuit board CPCB through a flexible circuit board FPC, and the first circuit board XPCB is configured to transmit a control signal generated by the control circuit board CPCB to the display panel. For example, the first circuit board XPCB may include a data driving circuit, and the data driving circuit can receive the gamma reference voltage and a data signal, and generate, based on the gamma reference voltage and the data signal, a grayscale voltage signal for driving the display panel to display images. 
     For example, the second circuit board YPCB may include a gate driving circuit, and the gate driving circuit is configured to generate a scan drive signal for driving the display panel to display images. For example, the scan drive signal can drive the display panel to display images in a progressive scanning manner. 
     It should be noted that the amounts of the first circuit board XPCB and the second circuit board YPCB in  FIG. 1  are merely illustrative, and the embodiments of the present disclosure include, but are not limited to, the shown case. For example, four first circuit boards XPCB and the like may be arranged. In addition, if a Gate on Array (GOA) is adopted instead of the gate driving circuit, the second circuit board YPCB may not be arranged. 
     Currently, in the production of the display products, various manufacturers are actively promoting the platform-based design. For example, 32-inch products and smaller products may adopt an “X+C” scheme, that is, the control circuit board CPCB and the first circuit board XPCB may be sold together with the display panel, and related configuration parameters of the control circuit board CPCB may be separately set based on practical situations of various production sites, thereby realizing the platform-based design. 
     For example, in the production of 43-inch products and larger products, because the control circuit board CPCB and the first circuit board XPCB are separately designed, the control circuit board CPCB and the first circuit board XPCB are sold separately, for example, at the customer side, the control circuit board CPCB and the first circuit board XPCB are connected through a flexible circuit board. Due to the differences in the process, assembling and the like of production equipment at various production sites, display panels produced by different production equipment are different, and the configuration parameters required for the display panels produced by different production equipment are also different. Therefore, in this case, control circuit boards CPCB required by display panels which are produced by different production equipment are also different, the storage chip Flash in each of the control circuit boards CPCB stores the configuration code of the corresponding display panel, and a same control circuit board CPCB cannot be shared by different display panels, thereby hindering the realization of the platform-based design. 
     In addition, as shown  FIG. 2 , the configuration code used for the timing controller TCON is stored in the storage chip Flash, and the power management chip PMIC and the gamma buffer Gamma also include respective storage units for storing the corresponding configuration code. In this case, the control circuit board CPCB is required to store a lot of configuration codes, which is inconvenient for the management of the configuration codes and thus affects the production efficiency and also increases the production costs. 
     At least one embodiment of the present disclosure provides a control circuit board, which includes a timing control circuit. The timing control circuit is configured to read configuration codes from the storage circuit on the additional circuit board outside the control circuit board, the configuration code includes a first code used for configuring the timing control circuit, and the timing control circuit is also configured to generate, based on the first code, a control signal for controlling a display panel. At least one embodiment of the present disclosure also provides an additional circuit board and a display device corresponding to the above-mentioned control circuit board. 
     In the control circuit board, the additional circuit board and the display device provided by the embodiments of the present disclosure, by arranging the storage circuit in the additional circuit board, the configuration code stored in the storage circuit can be set based on the parameter of the display panel, so that the display panels having different characteristics can share a same control circuit board, thereby improving the production efficiency and reducing the production costs. 
     Hereinafter, the embodiments of the present disclosure will be described in detail in conjunction with the accompanying drawings. 
     Some embodiments of the present disclosure provide a display device  1 , as shown in  FIG. 3 , the display device  1  includes a control circuit board  10 , a first circuit board  20  and a display panel  30 . For example, the first circuit board  20  (an example of the additional circuit board of the embodiments of the present disclosure) can be in signal connection with the control circuit board  10  through a flexible circuit board FPC. It should be noted that only two first circuit boards  20  are shown in  FIG. 3 , however, the embodiments of the present disclosure do not limit the amount of the first circuit boards  20  included in the display device  1 , and the amount of the first circuit boards  20  may be set based on the practical situation, for example, the display device  1  may also include four first circuits board  20 . 
     For example, as shown in  FIG. 3 , the first circuit board  20  includes a storage circuit  220 . For example, the storage circuit  220  is configured to store a configuration code, and the configuration code can be read by the control circuit board  10  to configure the control circuit board  10 . For example, the configuration code may be set based on the corresponding display panel  30 . For example, when the display device is energized, the control circuit board  10  can read the configuration code from the storage circuit  220  of the first circuit board  20 , and then the control circuit board  10  can configure one or more circuits of the control circuit board  10  based on the configuration code. 
     It should be noted that as shown in  FIG. 3 , in a case where the display device  1  includes a plurality of first circuit boards  20 , the storage circuit  220  may be arranged in at least one first circuit board  20 , the embodiments of the present disclosure include, but are not limited to, this case. For example, the storage circuit  220  may also be arranged respectively in two first circuit boards  20 . 
     In the display device  1  provided by the embodiments of the present disclosure, for example, the first circuit board  20  can be bonded to the display panel  30 , so that the first circuit board  20  can be sold together with the display panel  30 . For example, the first circuit board  20  can bonded with the display panel  30  through a flexible circuit board, an anisotropic conductive adhesive and so on. For example, in the display device  1  as shown in  FIG. 3 , two first circuit boards  20  are bonded to the display panel  30 , so that the two first circuit boards  20  can be sold together with the display panel  30 . 
     For example, for the production equipment at different production sites, due to the differences in the processes, assembling and the like, the characteristics of the display panels produced by these different production equipment are different. The configuration code stored in the storage circuit  220  in the first circuit board  20  can be set in advance based on the corresponding display panel  30 . Because the control circuit board  10  is not required to store the configuration code, the control circuit board  10  possesses versatility, so that a same control circuit board  10  can be used for the display panels  30  produced by different production equipment. In other embodiments, the control circuit board  10  and the display panel  30  may also be sold separately, thereby improving the production efficiency, and reducing the production costs. 
     The control circuit board  10  and the first circuit board  20  as an example of the additional circuit board included in the display device  1  provided by the embodiments of the present disclosure are respectively described in the following. 
     Some embodiments of the present disclosure provide a control circuit board  10 , as shown in  FIG. 4 , the control circuit board  10  includes a timing control circuit  110 . The timing control circuit  110  is configured to read configuration codes from the storage circuit  220  on the first circuit board  20  outside the control circuit board  10 , the configuration codes include a first code for configuring the timing control circuit  110 , and the timing control circuit  110  is further configured to generate, based on the first code, a control signal for controlling the display panel  30 . 
     For example, the timing control circuit  110  can transfer a clock signal and the control signal received from the outside to a clock signal and a control signal, which are suitable for the data driving circuit and the gate driving circuit, thereby realizing the display drive of the display panel  30 . 
     For example, the signals received by the timing control circuit  110  from the outside include a clock signal, a horizontal synchronization signal (Hsync), a vertical synchronization signal (Vsync), an enable signal (DE) and so on. For example, the control signals output by the timing control circuit  110  include a start horizontal signal (STH), a clock pulse horizontal signal (CPH), a data output signal (TP), a data polarity reversion signal (POL) and the like for the data driving circuit, and a start vertical signal (STV) and a clock pulse vertical signal (CPV) and the like for the gate driving circuit. 
     It should be noted that the embodiments of the present disclosure do not limit the digital signal format and the type of the corresponding port adopted by the timing control circuit  110 , for example, the formats of the digital signals input into the timing control circuit  110  include a low voltage differential signal (LVDS), an embedded display port (eDP) signal, a transistor to transistor logic (TTL) signal and so on. For example, the formats of the digital signals output by the timing control circuit  110  include TTL, mini-LVDS and so on. 
     For example, in some embodiments of the present disclosure, as shown in  FIG. 5 , the timing control circuit  110  may adopt a timing controller (TCON). 
     For example, in the control circuit board  10  provided by some embodiments of the present disclosure, the timing control circuit  110  is further configured to distribute the remaining configuration codes other than the first code in the configuration codes to circuits other than the timing control circuit  110 . For example, after the timing control circuit  110  obtains the configuration code, the configuration codes may be classified based on the addresses of the configuration codes, and the timing control circuit  110  keeps the first code for configuring the timing control circuit  110  and distributes the remaining configuration codes other than the first code in the configuration codes to other circuits. 
     For example, as shown in  FIG. 4 , the control circuit board  10  provided by some embodiment of the present disclosure further includes a power management circuit  120 . The configuration codes further include a second code for configuring the power management circuit  120 , and the power management circuit  120  is configured to obtain the second code from the timing control circuit  110  and generate, based on the second code, a voltage signal for driving the display panel  30 . For example, after receiving the configuration codes, the timing control circuit  110  transmits the second code for configuring the power management circuit  120  in the configuration codes to the power management circuit  120 . For example, the timing control circuit  110  may include a binary synchronization serial bus (I2C) port, the power management circuit  120  also includes a binary synchronization serial bus port, the timing control circuit  110  and the power management circuit  120  are in signal connection with each other through an I2C signal line, and thus the timing control circuit  110  can transmit the second code to the power management circuit  120  through the binary synchronization serial bus ports. 
     The power management circuit  120  generates various voltage signals for driving the display panel to display images, for example, the power management circuit  120  includes a plurality of direct current-direct current (DC/DC) conversion circuits for realizing different circuit functions, including for example a buck DC/DC conversion circuit having a voltage reducing function, a boost DC/DC conversion circuit having a voltage boosting function and a buck-boost conversion circuit having both the voltage boosting function and the voltage reducing function. 
     For example, the input voltage of the power management circuit  120  may be typically, based on the products, 3.3V (notebook computer), 5V (monitor) and 12V (television). For example, the voltages output by the power management circuit  120  include a digital working voltage (DV DD ) provided to individual chips, an analog reference voltage (AV DD ) provided to the data signal adjusting circuit  130 , a gate turn-on voltage (V gh ) and a gate turn-off voltage (V gl ) provided to the gate driving circuit and a common electrode voltage provided to a common electrode in the display panel. 
     For example, in some embodiments of the present disclosure, as shown in  FIG. 5 , the power management circuit  120  may adopt a power management integrated circuit (PMIC). 
     For example, in the control circuit board  10  provided by some embodiments of the present disclosure, the timing control circuit  110  is further configured to provide a data signal to the data driving circuit  210  on the first circuit board  20 . For example, as shown in  FIG. 5 , the timing control circuit  110  may be in signal connection with the data driving circuit  210  so that the timing control circuit  110  can provide the data signal to the data driving circuit  210 . For example, the data signal is a digital signal (with respect to an analog signal). For example, the timing control circuit  110  can obtain the data signal from a data source, for example, obtain the data signal from an external data source or an internal data source. The external data source includes a modem, a data port (for example, a USB port, an HDMI port, etc.); the internal data source includes a data storage circuit (storage), that is, the data signal may be stored in the storage circuit  220  in advance and called from the storage circuit  220  when required. 
     For example, as shown in  FIG. 4 , the control circuit board  10  provided by some embodiments of the present disclosure further includes a data signal adjusting circuit  130 , and the configuration codes further include a third code for configuring the data signal adjusting circuit  130 . The data signal adjusting circuit  130  is configured to obtain the third code from the timing control circuit  110  and generate a gamma reference voltage V Gamma  configured to be applied to the data driving circuit  210  on the first circuit board  20 . For example, after receiving the configuration codes, the timing control circuit  110  transmits the third code for configuring the data signal adjusting circuit  130  in the configuration codes to the data signal adjusting circuit  130 . For example, in a case where the timing control circuit  110  and the data signal adjusting circuit  130  both include the binary synchronization serial bus (I2C) ports, the timing control circuit  110  can transmit the third code to the data signal adjusting circuit  130  through the binary synchronization serial bus ports. 
     The data signal adjusting circuit  130  receives the analog reference voltage (AV DD ) provided by the power management circuit  120  and generates the gamma reference voltage V Gamma  based on the analog reference voltage. For example, the data signal adjusting circuit  130  may include a resistor network string including a plurality of resistors, gamma correction is configured to adjust the resistor network string, and the gamma reference voltage V Gamma  generated by the data signal adjusting circuit  130  is an analog voltage subject to the gamma correction. 
     For example, in an example, in a case where the digital signal corresponding to the data signal adopts 8 bit data, the data signal adjusting circuit  130  can generate  14  different reference voltages V Gamma  based on the analog reference voltage and provide the 14 gamma reference voltages V Gamma  to the data driving circuit  210 , then the data driving circuit  210  generates  256  grayscale voltage signals VOUT based on the 14 gamma reference voltages V Gamma , and the grayscale voltage signals VOUT can be provided to the display panel  30  to drive the display panel  30  to display images. 
     For example, in some embodiments of the present disclosure, the data signal adjusting circuit  130  may adopt a gamma buffer (Gamma); for example, as shown in  FIG. 5 , the data signal adjusting circuit  130  may adopt a programmable gamma buffer (Programmable Gamma, PGamma). 
     For example, in some embodiments of the present disclosure, the configuration codes obtained by the timing control circuit  110  may further include a De-mura code for eliminating display nonuniformity, and the timing control circuit  110  can configure the parameters of individual circuits in the control circuit board  10  after receiving the De-mura code, thereby realizing the function of eliminating display nonuniformity. 
     In the control circuit board  10  provided by some embodiments of the present disclosure, because the configuration codes are not required to be stored, the control circuit board  10  possesses versatility so that display devices  1  produced by different production equipment may use a same control circuit board  10 , and the control circuit board  10  and the display panel  30  can be sold separately, thereby improving the production efficiency and reducing the production costs. 
     Some embodiments of the present disclosure further provide an additional circuit board which may be for example the above-mentioned first circuit board  20 , and as shown in  FIG. 3 , the first circuit board  20  is configured to be bonded to the display panel  30 . For example, the first circuit board  20  may be sold together with the display panel  30 . 
     For example, as shown in  FIG. 4 , the first circuit board  20  includes a data driving circuit  210  and a storage circuit  220 . The storage circuit  220  is configured to store configuration codes, and the configuration codes may be read by the control circuit board  10  to configure the control circuit board  10 ; the data driving circuit  210  is configured to provide the grayscale voltage signal VOUT to the display panel  30 . 
     For example, as shown in  FIG. 4 , the first circuit board  20  provided by some embodiments includes a serial peripheral interface (SPI), the timing control circuit  110  also includes a serial peripheral interface, the timing control circuit  110  and the first circuit board  20  are in signal connection with each other through a serial peripheral interface signal line, and the configuration codes stored in the storage circuit  220  may be read by the timing control circuit  110  through the serial peripheral interface. 
     For example, as shown in  FIG. 5 , in some embodiments of the present disclosure, the storage circuit  220  may adopt a storage chip which may be of various types, for example, a flash memory (FLASH), an erasable programmable read-only memory (EPROM), an electrical erasable programmable read-only memory (EEPROM), etc. 
     It should be noted that the embodiments of the present disclosure do not limit the types of the signal connections between the circuits, as long as the signal connections between these circuit can be realized to transmit configuration codes; similarly, the embodiments of the present disclosure do not limit the particular type of the storage circuit  220 , as long as the data can be stored and the data will not be lost in case of a power outage. 
     For example, in the first circuit board  20  provided by some embodiments of the present disclosure, the configuration codes include the code for configuring the timing control circuit  110 , and the timing control circuit  110  is configured to generate, based on the first code, the control signal for controlling the display panel  30 . The detailed description of the timing control circuit  110  and the first code may refer to the corresponding description of the above-mentioned embodiments, which will not be repeated herein. 
     For example, in the first circuit board  20  provided by some embodiments of the present disclosure, the configuration codes further include the second code for configuring the power management circuit  120 , and the power management circuit  120  is configured to generate, based on the second code, a voltage signal for driving the display panel  30 . The detailed description of the power management circuit  120  and the second code may refer to the corresponding description of the above-mentioned embodiments, which will not be repeated herein. 
     For example, in the first circuit board  20  provided by some embodiments of the present disclosure, the configuration codes further include a third code for configuring the data signal adjusting circuit  130 , and the data signal adjusting circuit  130  is configured to generate, based on the third code, the gamma reference voltage V Gamma  configured to be applied to the data driving circuit  210 . 
     For example, as shown in  FIG. 6 , the data driving circuit  210  includes a digital-analog converter (DAC)  211 . The digital-analog converter  211  obtains the gamma reference voltage V Gamma  from the data signal adjusting circuit  130  and obtains the data signal Data from the timing control circuit  110 , the digital-analog converter  211  can generate the grayscale voltage signal V OUT  based on the gamma reference voltage V Gamma  and the data signal Data, and the grayscale voltage signal V OUT  may be provided to the display panel  30  to drive the display panel  30  to display images. 
     For example, as shown in  FIG. 7 , the data driving circuit  210  may further include a buffer  212  and an output multiplexer  213 . The buffer  212  is configured to improve the load capacity of the output voltage converted by the digital-analog converter  211 , that is, converting the analog voltage having a low load capacity output by the digital-analog converter  211  into an analog voltage having a high load capacity. The output multiplexer  213  may include a plurality of output channels, for example, each output channel corresponds to a column of pixel units in the display panel  30 . For example, in a case where the display panel  30  adopts an AC drive manner, that is, the polarity of the grayscale voltage signal V OUT  is alternatively positive and negative with respect to the common electrode voltage (V COM ) between frames, and the output multiplexer  213  can control to output grayscale voltage signals VOUT having different polarities. 
     In the first circuit board  20  provided by some embodiments, the storage circuit  220  may store the configuration codes in the code format as shown in the below table 1. For example, as shown in table 1, the six-bit data at the left side represents the corresponding address of the configuration code, for example, the address begins from 000000. The 128-bit data (00, 01, . . . , 0F) at the right side represents the configuration code stored by the storage circuit  220 . For example, the configuration codes stored by the storage circuit  220  include the first code, the second code, the third code and the De-mura code. In addition, the storage circuit  220  may set some reserved positions in advance to have enough storage space to change the configuration codes when required. 
     
       
         
           
               
               
             
               
                   
                 TABLE 1 
               
             
            
               
                   
                   
               
               
                   
                 code 
               
            
           
           
               
               
               
               
               
               
               
               
               
               
               
               
               
               
               
               
               
            
               
                   
                 00 
                 01 
                 02 
                 03 
                 04 
                 05 
                 06 
                 07 
                 08 
                 09 
                 0A 
                 0B 
                 0C 
                 0D 
                 0E 
                 0F 
               
               
                   
                   
               
            
           
           
               
               
               
            
               
                 address 
                 000000 
                 first code 
               
               
                   
                 xxxxxx 
                 second code 
               
               
                   
                 xxxxxx 
                 third code 
               
               
                   
                 xxxxxx 
                 reserved position 
               
               
                   
                 xxxxxx 
                 De-mura code 
               
               
                   
               
            
           
         
       
     
     It should be noted that the code format as shown in table 1 is merely an example, and the embodiments of the present disclosure include, but are not limited to, this format. 
     The first circuit board  20  provided by some embodiments of the present disclosure can store the configuration code for configuring the control circuit board  10  so that the codes for configuring individual circuits on the control circuit board  10  are stored in the storage circuit  220 , thereby facilitating the management of the configuration codes, improving the production efficiency and reducing the production costs. 
     Some embodiments of the present disclosure further provide a display device  1 , as shown in  FIG. 3 , the display device includes the control circuit board  10  provided by any embodiment of the present disclosure, the additional circuit board and the display panel  30 . For example, the additional circuit board may be the above-mentioned first circuit board  20 . For example, the first circuit board  20  is bonded to the display panel  30 , and the first circuit board  20  is in signal connection with the control circuit board  10 . 
     For example, the display device  1  provided by some embodiments of the present disclosure may further include a flexible circuit board FPC, and the control circuit board  10  is in signal connection with the first circuit board  20  through the flexible circuit board FPC. 
     Some embodiments of the present disclosure further provide a display device  1 , as shown in  FIG. 8 , the display device includes the additional circuit board provided by any embodiment of the present disclosure and the display panel  80 , and the additional circuit board may be for example the above-mentioned first circuit board  20 . The first circuit board  20  is bonded to the display panel  30 . The display panel  30  may be for example a liquid crystal panel, an OLED panel, an electronic paper panel, etc. In some embodiments of the present disclosure, the display device  1  further includes a second circuit board which may be for example the Y-direction circuit board (YPCB) as shown in  FIG. 1 . In some embodiments of the present disclosure, an array substrate of the display panel may be a GOA array substrate, i.e., the gate driving circuit is integrated on the array substrate. 
     It should be noted that the display device  1  provided by the embodiments of the present disclosure may be any product or component having a display function such as a liquid crystal panel, a liquid crystal television, a display, an OLED panel, an OLED television, an electronic paper display device, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigator. 
     It should be noted that the technical effects in connection with the control circuit board  10  and the first circuit board  20  may refer to the corresponding description of the above-mentioned embodiments, which will not be repeated herein. 
     Some embodiments of the present disclosure further provide a control method which is applicable to any display device  1  provided by the embodiments of the present disclosure and includes the following operations as shown in  FIG. 9 . 
     Step S 100 : turning on. For example, the display device  1  is energized to be turned on. 
     Step S 200 : reading configuration codes. For example, the timing control circuit  110  of the control circuit board  10  reads the configuration codes from the storage circuit  220  of the first circuit board  20 , and the configuration codes are configured to configure the control circuit board  10 . 
     Step S 300 : configuring the timing control circuit  110  based on the first code. For example, after obtaining the configuration codes, the timing control circuit  110  can classify the configuration codes based on the addresses of the configuration codes, and keep the first code for the timing control circuit  110  and distributes the remaining configuration codes other than the first code in the configuration codes to other circuits. 
     Step S 400 : distributing the second code to the power management circuit  120 . For example, after obtaining the configuration codes, the timing control circuit  110  transmits the second code of the configuration codes to the power management circuit  120 . 
     Step S 500 : distributing the third code to the data signal adjusting circuit  130 . For example, after obtaining the configuration codes, the timing control circuit  110  transmits the third code of the configuration codes to the data signal adjusting circuit  130 . 
     The foregoing is merely exemplary embodiments of the present disclosure, and not intended to define the scope of the present disclosure, and the scope of the present disclosure is determined by the appended claims.