CN111724725A - Display control device, chip, display panel and electronic equipment - Google Patents
Display control device, chip, display panel and electronic equipment Download PDFInfo
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- CN111724725A CN111724725A CN202010568294.3A CN202010568294A CN111724725A CN 111724725 A CN111724725 A CN 111724725A CN 202010568294 A CN202010568294 A CN 202010568294A CN 111724725 A CN111724725 A CN 111724725A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- General Engineering & Computer Science (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The disclosure relates to a display control device, a chip, a display panel and an electronic apparatus. The device includes display driver module and touch module, and display driver module includes: a parameter registering unit for registering parameter data defining a working mode of the display module, and a state registering unit for registering state data indicating a category of the working mode of the display module; the touch module includes: a storage unit for storing parameter data corresponding to a plurality of operating modes of the display assembly, the first control unit being configured to: reading the state data; determining a target working mode to be switched when the state data is updated; and reading the parameter data corresponding to the target working mode from the storage unit and writing the parameter data into the parameter registering unit. The display driving module can effectively save the storage space of the OTP in the display driving module.
Description
Technical Field
The present disclosure relates to the field of integrated circuit technologies, and in particular, to a display control device, a chip, a display panel, and an electronic apparatus.
Background
IC (Integrated Circuit) chips are widely used, and image display, machine manufacturing, automation control, and the like are all applied to IC chips, so the structural design of the IC chips is important. When some touch display IC chips are operated, in different operation modes, operating parameters corresponding to different operation modes are generally written into an OTP (One Time Programmable) storage structure built in a display driver chip, but since the OTP storage structure is a One-Time storage structure, data cannot be changed again after being written into the OTP storage structure, and the more data is stored by the OTP storage structure, the larger the space overhead of OTP is, so the lower the flexibility in use is.
Disclosure of Invention
In view of this, the present disclosure provides a display control device, a chip, a display panel and an electronic apparatus.
According to a first aspect of the present disclosure, there is provided a display control apparatus, the apparatus including a display driving module and a touch module,
the display driving module comprises a parameter registering unit and a state registering unit,
the parameter registering unit is used for registering parameter data, and the parameter data is used for limiting the working mode of the display component; the state registering unit is used for registering state data, and the state data is used for indicating the category of the working mode of the display component;
the touch control module comprises a storage unit and a first control unit, the first control unit is respectively connected to the storage unit, the parameter registering unit and the state registering unit,
the storage unit is used for storing parameter data corresponding to a plurality of working modes of the display component;
wherein the first control unit is configured to:
reading state data in the state register unit;
when the state data is updated, determining a target working mode to be switched of the display assembly according to the updated state data;
reading the parameter data corresponding to the target working mode from the storage unit, and writing the read parameter data into the parameter register unit so as to display the display component in the target working mode.
In a possible implementation manner, the display driving module further includes a second control unit, the second control unit is connected to the parameter registering unit, the state registering unit and the first control unit,
the second control unit is configured to: when the working mode of the display component is to be switched, updating the state data in the state registering unit into the state data corresponding to the target working mode, and sending an interrupt signal to the first control unit;
wherein, the first control unit reads the state data in the state register unit, and comprises:
and reading the state data in the state register unit when the interrupt signal is received.
In one possible implementation, the display driving module is further connected to an external interface for transmitting signals of external control components,
the display driving module further comprises an interface monitoring unit for monitoring whether signal transmission exists in the external interface; setting the interface status flag to be valid when there is signal transmission;
wherein the parameter data corresponding to the target working mode comprises a plurality of groups of parameter data, the first control unit transmits one group of parameter data each time,
the first control unit is further configured to:
when parameter data to be transmitted exist, detecting the interface state mark;
when the detected interface state mark is invalid, reading a group of parameter data to be transmitted from the storage unit, and transmitting the read group of parameter data to the parameter registering unit;
when the transmission of the group of parameter data is finished, detecting the interface state mark again;
and when the interface state mark detected again is invalid, determining that the group of parameter data is successfully written.
In one possible implementation, the first control unit is further configured to:
and when the interface state mark detected again is valid, determining that the writing of the group of parameter data fails, and setting the interface state mark to be invalid.
In one possible implementation, the first control unit is further configured to:
and when the group of parameter data is successfully written, reading the next group of parameter data to be transmitted from the storage unit, and transmitting the read next group of parameter data to the parameter registering unit.
In one possible implementation, the storage unit includes a rewritable memory.
According to a second aspect of the present disclosure, there is provided a chip including the above display control device.
According to a third aspect of the present disclosure, there is provided a display panel including:
a display component;
the chip is described above.
In one possible implementation manner, the display assembly includes at least one of a liquid crystal display assembly, a light emitting diode display assembly, an organic light emitting diode display assembly, and an OLED display assembly.
According to a fourth aspect of the present disclosure, there is provided an electronic apparatus including the above display panel.
According to the display control device disclosed by the embodiment of the disclosure, the working parameters can be stored in the storage unit of the touch module; reading the state of the working mode in the state register unit through the first control unit during the operation of the device; when the state is updated, determining a working mode corresponding to the updated state; and reading the corresponding working parameters from the storage unit and writing the working parameters into the parameter registering unit, thereby realizing the switching of the working mode of the display component. By the method, the storage space of the one-time programmable storage structure OTP in the display driving module can be effectively saved.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 illustrates a schematic diagram of a display control apparatus according to an embodiment of the present disclosure.
Fig. 2 illustrates a schematic diagram of a display control apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram illustrating a first control unit of the display control apparatus transmitting data to a parameter registering unit according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 illustrates a schematic diagram of a display control apparatus according to an embodiment of the present disclosure. As shown in fig. 1, the apparatus includes: a display driving module 11 and a touch module 12,
the display driving module 11 includes a parameter register unit 112 and a status register unit 113,
the parameter registering unit 112 is used for registering parameter data, which is used for defining the working mode of the display component; the state registering unit 113 is configured to register state data, where the state data is used to indicate a category of an operating mode of the display component;
the touch module 12 includes a storage unit 122 and a first control unit 121, the first control unit 121 is respectively connected to the storage unit 122, the parameter registering unit 112 and the state registering unit 113,
the storage unit 122 is configured to store parameter data corresponding to a plurality of operating modes of the display component;
wherein the first control unit 121 is configured to:
reading the status data in the status register unit 113;
when the state data is updated, determining a target working mode to be switched of the display assembly according to the updated state data;
the parameter data corresponding to the target operating mode is read from the storage unit 122, and the read parameter data is written into the parameter register unit 112, so that the display module displays in the target operating mode.
In one possible implementation, the display control apparatus 10 may be used to control the operating mode of the display assembly. For example, the display control apparatus 10 may be applied to a touch display device (e.g., a smart phone, a tablet computer, etc.), and control an operation mode of a display component (e.g., a display screen) of the touch display device to drive the display component to operate in a corresponding operation mode.
In one possible implementation, the display component may include a variety of categories of operating modes, such as operating modes with a color temperature of standard, warm, or cold; the color is standard, bright or eye-protecting working mode, etc. The working modes of the display component in various categories can respectively correspond to different working parameters, and the parameter data corresponding to the working modes of the display component can be stored in advance so as to be loaded as required during working.
It should be understood that the operation mode of the display assembly can be set according to practical situations, and the present disclosure does not limit this.
In a possible implementation manner, the display control apparatus 10 may include a display driving module 11 and a touch module 12, where the display driving module 11 is configured to determine an operating mode of a display device and drive the display device to operate in the corresponding operating mode; the touch module 12 is configured to store parameter data corresponding to a working mode of the display module, and load the parameter data to the display driving module 11.
In a possible implementation manner, the touch module 12 may further implement touch control of the display component, and execute corresponding processing according to a touch action of the user on the display component. The present disclosure does not limit the functional scope of the touch module 12.
In one possible implementation, the display driving module 11 may include a parameter register unit 112 and a status register unit 113. The parameter registering unit 112 may include, for example, a register set, configured to register parameter data corresponding to the working mode of the display module, and by reading the parameter data registered by the parameter registering unit 112, the working parameter required for adjusting the working mode of the display module may be obtained; the state registering unit 113 may, for example, include one or more registers for registering state data indicating a category of an operation mode of the display component, and the operation mode of the display component may be determined by reading the state data registered by the state registering unit 113.
For example, when the operation mode of the display device is a standard color temperature, that is, the category of the operation mode of the display device is the standard color temperature, the parameter data registered by the reference register unit 112 may be an operation parameter for adjusting the operation mode of the display device to the standard color temperature; the status data registered by the status registering unit 113 may be status data for determining that the operation mode of the display component is a standard color temperature.
In one possible implementation manner, the touch module 12 may include a storage unit 122 and a first control unit 121. The storage unit 122 may be a rewritable memory such as a flash memory, and is used for storing parameter data corresponding to a plurality of operation modes of the display device and various data related to touch control. The present disclosure is not particularly limited as to the specific device type of the memory cell 122.
In a possible implementation manner, the first control Unit 121 may be, for example, a Micro Controller Unit (MCU), a field programmable gate array FPGA (field programmable gate array), and the like, and is used for controlling the touch of the display module. The first control unit 121 may be connected to the storage unit 122, the parameter registration unit 112, and the state registration unit 113 through an SPI interface, an I2C interface, and the like. The present disclosure does not limit the device type of the first control unit 121 and the connection manner with each component.
In one possible implementation, the initial operating mode of the display component may be a default operating mode of the device, or other operating mode set by the user. During operation, it may be necessary to switch the operation mode of the display assembly, in which case parameter data corresponding to the operation mode to be switched may be loaded into the parameter registering unit 112 through the first control unit 121.
In one possible implementation manner, the first control unit 121 may read the status data in the status register unit 113 at preset time intervals; if the state data is not updated, the working mode of the display component is not required to be switched; if the state data is updated, the working mode of the display assembly is considered to be required to be switched, and in this case, the target working mode to be switched of the display assembly can be determined according to the updated state data.
In a possible implementation manner, the first control unit 121 may read parameter data corresponding to the target operating mode from the storage unit, and write the read parameter data into the parameter register unit 112, so that the display driving module 11 drives the display module according to the parameter data, so that the display module displays in the target operating mode.
According to the display control device disclosed by the embodiment of the disclosure, the working parameters can be stored in the storage unit of the touch module; reading the state of the working mode in the state register unit through the first control unit during the operation of the device; when the state is updated, determining a working mode corresponding to the updated state; and reading the corresponding working parameters from the storage unit and writing the working parameters into the parameter registering unit, thereby realizing the switching of the working mode of the display component. By the method, the storage space of the one-time programmable storage structure OTP in the display driving module can be effectively saved.
In one possible implementation, as shown in fig. 1, the storage unit 122 includes a rewritable memory.
In one possible implementation, the memory unit 122 may be a rewritable memory such as a flash memory, and the present disclosure does not specifically limit the specific device type of the memory unit 122.
In one possible implementation, the storage unit 122 is configured to store parameter data corresponding to a plurality of operation modes of the display assembly, and various data related to touch control. By the method, the storage space of the one-time programmable storage structure OTP in the display driving module can be effectively saved, and the flexibility of modifying the working parameters is improved.
Fig. 2 illustrates a schematic diagram of a display control apparatus according to an embodiment of the present disclosure. As shown in fig. 2, in a possible implementation manner, the display driving module 11 further includes a second control unit 114, the second control unit 114 is connected to the parameter registering unit 112, the state registering unit 113 and the first control unit 121,
the second control unit 114 is configured to: when the working mode of the display module is to be switched, the state data in the state registering unit 113 is updated to the state data corresponding to the target working mode, and an interrupt signal is sent to the first control unit 121;
the reading of the state data in the state register unit 113 by the first control unit 121 includes: upon receiving the interrupt signal, the status data in the status register unit 113 is read.
In a possible implementation manner, the second control unit 114 may be, for example, a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like, and is configured to read parameter data in the parameter register unit 112 and control the display module to display in a corresponding operation mode. The second control unit 121 may be connected to the parameter registering unit 112, the state registering unit 113, and the first control unit 121 through an SPI interface, an I2C interface, and the like. The present disclosure does not limit the device type of the second control unit 114 and the connection manner with each component.
In a possible implementation manner, the second control unit 114 may update the state data in the state registering unit 113 to the state data corresponding to the target operation mode to be switched when the operation mode of the display assembly is to be switched, and send an interrupt signal to the first control unit 121. When receiving the interrupt signal, if the touch module 12 is not operating or the first control unit 121 is in a sleep state, the first control unit 121 may be awakened by the interrupt signal and respond to the interrupt signal; the interrupt signal may be responded to directly if the first control unit 121 is in an operating state.
In one possible implementation, in response to the interrupt signal, the first control unit 121 may read status data from the status register unit 113; if the read state data is updated, determining a target working mode to be switched according to the updated state data; and reads the parameter data corresponding to the target working mode from the storage unit 122, and writes the read parameter data into the parameter register unit 112, so that the display driving module 11 drives the display module according to the parameter data, and the display module displays the display module in the target working mode.
In a possible implementation manner, the second control unit 114 may further control the display component to display in the target operation mode by reading the parameter data in the parameter register unit 112.
In this way, when the working mode of the display assembly is to be switched, the state data is updated through the second control unit and an interrupt signal is sent to the first control unit; the first control unit reads the updated state data according to the interrupt signal, reads the corresponding working parameters from the storage unit and writes the working parameters into the parameter register unit, and therefore switching of the working mode of the display assembly is achieved. By the mode, the times of reading the state data by the first control unit can be effectively reduced, and the working efficiency of the first control unit is improved.
As shown in fig. 2, in one possible implementation, the display driving module 11 is further connected to an external interface 13, the external interface 13 is used for transmitting signals of an external control component (not shown),
the display driving module 11 further includes an interface monitoring unit 111, configured to monitor whether there is signal transmission in the external interface 13; when there is a signal transmission, the interface status flag 14 is set to active;
wherein the parameter data corresponding to the target working mode comprises a plurality of groups of parameter data, the first control unit transmits one group of parameter data each time,
the first control unit 121 is further configured to:
when the parameter data to be transmitted exists, detecting the interface state mark 14;
when the detected interface status flag 14 is invalid, reading a set of parameter data to be transmitted from the storage unit 122, and transmitting the read set of parameter data to the parameter registering unit 112;
when the transmission of the set of parameter data is completed, the interface status flag 14 is detected again;
when the interface status flag 14 detected again is invalid, it is determined that the set of parameter data is successfully written.
For example, the display driving module 11 may be connected to the external interface 13 through an SPI interface, an I2C interface, or the like, to receive signals transmitted by external control components. The external Interface 13 may include, for example, a Mobile Industry Processor Interface (MIPI), and may also be other interfaces as long as signals of an external control component can be transmitted, and the specific type of the external Interface 13 is not limited in this disclosure.
In one possible implementation, the external control component may access the display driving module 11 through the external interface 13, and transmit signals to the display driving module 11, for example, write parameter data to the parameter registering unit 112. When the first control unit 121 writes parameter data to the parameter registration unit 112, an access conflict may occur with the external interface 13, resulting in a data write error.
In a possible implementation manner, the display driving module 11 may further be provided with an interface monitoring unit 111 for monitoring whether there is signal transmission through the external interface 13. The interface monitoring unit 111 may include, for example, an edge detection circuit, and the present disclosure does not limit the specific implementation manner of the interface monitoring unit 111.
In a possible implementation manner, if there is signal transmission, the interface monitoring unit 111 is triggered to set the state of the interface status flag 14 to be valid, which indicates that the external interface 13 is accessing the display driving module 11, and forbids the first control unit 121 to write the parameter data to the parameter registering unit 112. On the contrary, if there is no signal transmission, the interface monitoring unit 111 does not trigger, and does not update the state of the interface status flag 14.
In a possible implementation manner, before the first control unit 121 writes the parameter data into the parameter registering unit, the state of the interface state flag 14 may be detected, if the state of the interface state flag 14 is valid, the parameter data is not written temporarily, the state of the interface state flag 14 is set to be invalid, and the detection is performed again after waiting for a certain time. Until the state of the interface status flag 14 is detected to be invalid and no access conflict occurs, parameter data is written into the parameter register unit 112.
In a possible implementation manner, the data amount of the parameter data of each operation mode may be large, and the writing process of the first control unit 121 may be divided into a plurality of times, that is, a part of the parameter data is written each time. In this case, the parameter data corresponding to the target operation mode includes a plurality of sets of parameter data, and the first control unit 121 transmits one set of parameter data at a time. The state of the interface status flag 14 needs to be detected before each transmission of parameter data.
In one possible implementation, when there is at least one set of parameter data to be transmitted, the first control unit 121 may detect an interface status flag; if the detected interface status flag 14 is invalid, a set of parameter data to be transmitted is read from the storage unit 122, and the read set of parameter data is transmitted to the parameter registration unit 112.
In a possible implementation, upon completion of the transmission of the set of parameter data, the first control unit 121 may detect the interface status flag 14 again; if the interface status flag 14 detected again is invalid, it is determined that the set of parameter data is successfully written; otherwise, if the interface status flag 14 is detected to be valid again, it indicates that an access conflict occurs, and the set of parameter data write fails.
In this way, a data write error caused by an access conflict can be avoided, and the reliability of the parameter data written to the parameter register unit 112 can be improved.
In a possible implementation manner, the first control unit 121 is further configured to:
when the interface status flag 14 detected again is valid, it is determined that the writing of the set of parameter data has failed, and the interface status flag 14 is set to be invalid.
That is, upon completion of the transmission of one set of parameter data, the first control unit 121 detects the interface status flag 14 again; if the interface status flag 14 detected again is valid, it indicates that an access conflict occurs, the writing of the set of parameter data fails, the status of the interface status flag 14 is set to invalid, and the detection is performed again after a certain time period, so as to rewrite the set of parameter data.
In this way, the reliability of the parameter data written to the parameter registration unit 112 can be improved.
In a possible implementation manner, the first control unit 121 is further configured to:
when the set of parameter data is successfully written, the next set of parameter data to be transmitted is read from the storage unit 122, and the read next set of parameter data is transmitted to the parameter registering unit 112.
That is, if one set of parameter data is successfully written, that is, the interface status flag 14 has been detected to be invalid, the first control unit 121 may directly read the next set of parameter data to be transmitted from the storage unit 122, and transmit the read next set of parameter data to the parameter registering unit 112; upon completion of the transmission of the next set of parameter data, the interface status flag 14 may be checked again to determine whether the write was successful.
In this way, the first control unit 121 can realize cyclic writing of a plurality of sets of parameter data until the transmission of all the parameter data is completed.
Fig. 3 is a schematic diagram illustrating a first control unit of the display control apparatus transmitting data to a parameter registering unit according to an embodiment of the present disclosure. As shown in fig. 3, when there is parameter data to be transmitted, the interface status flag 14 is detected; when the detected interface state mark 14 is valid, returning to detect the interface state mark 14 again; when the detected interface status flag 14 is invalid, a set of parameter data to be transmitted is read from the storage unit 122 by the first control unit 121, and the read set of parameter data is transmitted to the parameter registration unit 112.
As shown in fig. 3, upon completion of the transmission of the set of parameter data, the interface status flag 14 is detected again; if the interface state mark 14 is detected to be invalid again, it indicates that no access conflict occurs in the writing process, and it is determined that the group of parameter data is successfully written; otherwise, if the interface status flag 14 detected again is valid, it indicates that an access conflict occurs during the writing process, determines that the writing of the set of parameter data fails, and sets the interface status flag 14 to be invalid.
As shown in fig. 3, after the interface status flag 14 is set to be invalid, the set of parameter data is retransmitted to the status register unit 113; upon completion of the transmission of the set of parameter data, the interface status flag 14 is again detected. And after the last group of parameter data is successfully written, the whole writing process of the parameter data can be completed.
According to the display control device disclosed by the embodiment of the disclosure, the erasable storage unit of the touch module stores the parameter data corresponding to the working mode of the display component, and the control unit of the touch module loads the parameter data to the display driving module, so that the storage space of the one-time programmable storage structure OTP in the display driving module can be effectively saved, and the flexibility of working parameter modification is improved.
According to the display control device of the embodiment of the present disclosure, the interface monitoring unit for monitoring the access of the external interface is provided, and the interface state can be set to be valid when there is access; the control unit can detect the interface state when loading the parameter data, thereby avoiding data writing errors caused by access conflicts and improving the reliability of the parameter data written into the display driving module.
The embodiment of the present disclosure also provides a chip including the above display control device 10.
The embodiment of the present disclosure also provides a display panel, which includes a display component and the above chip.
In a possible implementation manner, the display module includes at least one of a liquid crystal display module, a light emitting diode display module, an organic light emitting diode display module, and an OLED display module.
An embodiment of the present disclosure also provides an electronic device including the above display panel.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A display control device is characterized in that the device comprises a display driving module and a touch module,
the display driving module comprises a parameter registering unit and a state registering unit,
the parameter registering unit is used for registering parameter data, and the parameter data is used for limiting the working mode of the display component; the state registering unit is used for registering state data, and the state data is used for indicating the category of the working mode of the display component;
the touch control module comprises a storage unit and a first control unit, the first control unit is respectively connected to the storage unit, the parameter registering unit and the state registering unit,
the storage unit is used for storing parameter data corresponding to a plurality of working modes of the display component;
wherein the first control unit is configured to:
reading state data in the state register unit;
when the state data is updated, determining a target working mode to be switched of the display assembly according to the updated state data;
reading the parameter data corresponding to the target working mode from the storage unit, and writing the read parameter data into the parameter register unit so as to display the display component in the target working mode.
2. The apparatus according to claim 1, wherein the display driving module further comprises a second control unit connected to the parameter registering unit, the state registering unit and the first control unit,
the second control unit is configured to: when the working mode of the display component is to be switched, updating the state data in the state registering unit into the state data corresponding to the target working mode, and sending an interrupt signal to the first control unit;
wherein, the first control unit reads the state data in the state register unit, and comprises:
and reading the state data in the state register unit when the interrupt signal is received.
3. The apparatus of claim 1, wherein the display driving module is further connected to an external interface for transmitting signals of an external control component,
the display driving module further comprises an interface monitoring unit for monitoring whether signal transmission exists in the external interface; setting the interface status flag to be valid when there is signal transmission;
wherein the parameter data corresponding to the target working mode comprises a plurality of groups of parameter data, the first control unit transmits one group of parameter data each time,
the first control unit is further configured to:
when parameter data to be transmitted exist, detecting the interface state mark;
when the detected interface state mark is invalid, reading a group of parameter data to be transmitted from the storage unit, and transmitting the read group of parameter data to the parameter registering unit;
when the transmission of the group of parameter data is finished, detecting the interface state mark again;
and when the interface state mark detected again is invalid, determining that the group of parameter data is successfully written.
4. The apparatus of claim 3, wherein the first control unit is further configured to:
and when the interface state mark detected again is valid, determining that the writing of the group of parameter data fails, and setting the interface state mark to be invalid.
5. The apparatus of claim 3, wherein the first control unit is further configured to:
and when the group of parameter data is successfully written, reading the next group of parameter data to be transmitted from the storage unit, and transmitting the read next group of parameter data to the parameter registering unit.
6. The apparatus of claim 1, wherein the storage unit comprises a rewritable memory.
7. A chip, characterized in that it comprises a display control device according to any one of claims 1 to 6.
8. A display panel, comprising:
a display component;
the chip of claim 7.
9. The display panel of claim 8, wherein the display component comprises at least one of a liquid crystal display component, a light emitting diode display component, an organic light emitting diode display component, and an OLED display component.
10. An electronic device characterized in that it comprises a display panel as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568294.3A CN111724725A (en) | 2020-06-19 | 2020-06-19 | Display control device, chip, display panel and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568294.3A CN111724725A (en) | 2020-06-19 | 2020-06-19 | Display control device, chip, display panel and electronic equipment |
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| CN111724725A true CN111724725A (en) | 2020-09-29 |
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| CN202010568294.3A Pending CN111724725A (en) | 2020-06-19 | 2020-06-19 | Display control device, chip, display panel and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112667126A (en) * | 2021-01-22 | 2021-04-16 | 深圳市绘王动漫科技有限公司 | Handwriting screen and method for adjusting closed screen menu thereof |
| CN113725970A (en) * | 2021-08-30 | 2021-11-30 | 安徽华米信息科技有限公司 | Power supply method and device for wearable equipment and storage medium |
-
2020
- 2020-06-19 CN CN202010568294.3A patent/CN111724725A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112667126A (en) * | 2021-01-22 | 2021-04-16 | 深圳市绘王动漫科技有限公司 | Handwriting screen and method for adjusting closed screen menu thereof |
| CN113725970A (en) * | 2021-08-30 | 2021-11-30 | 安徽华米信息科技有限公司 | Power supply method and device for wearable equipment and storage medium |
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