CN111640406A - Display driving system and method and display device - Google Patents
Display driving system and method and display device Download PDFInfo
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- CN111640406A CN111640406A CN202010690227.9A CN202010690227A CN111640406A CN 111640406 A CN111640406 A CN 111640406A CN 202010690227 A CN202010690227 A CN 202010690227A CN 111640406 A CN111640406 A CN 111640406A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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Abstract
The invention discloses a display driving system, a display driving method and a display device, wherein the display driving system comprises a video conversion chip, an LCOS panel and a light source assembly, wherein the video conversion chip is used for converting a video signal in an input HDMI signal into an MIPI signal; the LCOS panel is electrically connected with the video conversion chip, and the video conversion chip transmits the converted MIPI signal to the LCOS panel; the light source assembly is electrically connected with the LCOS panel and is used for providing backlight for the LCOS panel; the technical scheme provided by the embodiment can realize the display of the system by integrating the video conversion chip, the LCOS panel and the light source assembly, so that the structure of the display driving system is simplified, and system resources are effectively and effectively utilized.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display driving system and method and a display device.
Background
AR (Augmented Reality) is a technology that calculates the position and angle of a photographic image in real time and adds corresponding images, videos, and 3D models. However, display driving systems using LCOS (Liquid Crystal on Silicon ) as a core are also gradually developed and researched, but the existing LCOS display driving systems have more modules, which results in a complicated building process and waste of system resources.
Disclosure of Invention
The invention mainly aims to provide a display driving system, a display driving method and a display device, and solves the problems that the existing LCOS display driving system is complex in construction process and system resources are wasted.
To achieve the above object, the present invention provides a display driving system, comprising:
the video conversion chip is used for converting the video signal in the input HDMI signal into an MIPI signal;
the LCOS panel is electrically connected with the video conversion chip, and the video conversion chip transmits the converted MIPI signal to the LCOS panel;
the light source assembly is electrically connected with the LCOS panel and is used for providing backlight for the LCOS panel;
and the LCOS panel is internally provided with a turnover control unit which is used for turning over liquid crystal molecules in the LCOS panel according to the MIPI signal.
Further, the light source assembly comprises:
the driving module is electrically connected with the LCOS panel and used for receiving a synchronous driving signal generated by the LCOS panel and driving the light-emitting module to emit light according to a set time sequence according to the synchronous driving signal.
Further, the video conversion chip is a TC358870XBG chip.
Further, the display driving system further includes:
microcontroller, the video conversion chip the LCOS panel and light source subassembly electric connection respectively in microcontroller, microcontroller is used for right the video conversion chip the LCOS panel and the light source subassembly carries out initial configuration.
Further, the display driving system further includes:
and the configuration memory is electrically connected with the microcontroller and is used for storing the video conversion chip, the LCOS panel and the initialization configuration information of the light source assembly.
Further, the configuration memory is a non-volatile memory.
Furthermore, the display driving system further comprises a video interface, wherein the video interface is used for receiving an HDMI signal input by an external device and transmitting the HDMI signal to the video conversion chip
In order to achieve the above object, the present invention further provides a display driving method applied to the display driving system of any one of the above, the display driving method comprising:
converting a video signal in the HDMI signal into an MIPI signal;
and overturning the liquid crystal molecules in the LCOS panel according to the MIPI signal.
Further, the display driving method further includes:
receiving a synchronous driving signal generated by the LCOS panel;
and driving the light emitting module to emit light according to a set time sequence according to the synchronous driving signal.
In order to achieve the above object, the present invention further provides a display device including a memory, a processor, and a display driver stored in the memory and executable on the processor, wherein the display driver implements the steps of the display driving method as described above when executed by the processor.
The invention provides a display driving system, a display driving method and a display device, wherein the display driving system comprises a video conversion chip, an LCOS panel and a light source assembly, wherein the video conversion chip is used for converting a video signal in an input HDMI signal into an MIPI signal; the LCOS panel is electrically connected with the video conversion chip, and the video conversion chip transmits the converted MIPI signal to the LCOS panel; the light source assembly is electrically connected with the LCOS panel and is used for providing backlight for the LCOS panel; the display driving system comprises a Liquid Crystal On Silicon (LCOS) panel, a Liquid Crystal On Silicon (LCOS) display driving system, a MIPI signal source assembly and a turnover control unit, wherein the LCOS panel is internally provided with the turnover control unit, the turnover control unit is used for overturning liquid crystal molecules in the LCOS panel according to the MIPI signal, namely the display of the LCOS panel can be realized by integrating the video conversion chip, the LCOS panel and the light source assembly, so that the structure of the display driving system is simplified, and system resources are effectively and effectively utilized.
Drawings
In order to more clearly illustrate the embodiments or exemplary technical solutions of the present invention, the drawings used in the embodiments or exemplary descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a display driving system according to an embodiment of the present invention;
FIG. 2 is a timing diagram of a light emitting module according to an embodiment of the invention;
FIG. 3 is a schematic block diagram of a configuration memory according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a display driving method according to an embodiment of the invention.
Description of reference numerals:
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| 40 | Micro-controller | 32 | |
| 50 | Video interface |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a display driving system.
In one embodiment, as shown in fig. 1, the display driving system includes: the display device comprises a video conversion chip 10, an LCOS panel 20 and a light source assembly 30, wherein the video conversion chip 10 is used for converting a video signal in an input HDMI (High Definition multimedia interface) signal into an MIPI (Mobile Industry processor interface) signal; the LCOS panel 20 is electrically connected to the video conversion chip 10, and the video conversion chip 10 transmits the converted MIPI signal to the LCOS panel 20; the light source assembly 30 is electrically connected to the LCOS panel 20 and configured to provide backlight to the LCOS panel 20; a flip control unit (not shown) is disposed in the LCOS panel 20, and the flip control unit is configured to flip the liquid crystal molecules in the LCOS panel 20 according to the MIPI signal, that is, the technical solution provided in this embodiment converts the video signal into the MIPI signal required by the LCOS panel 20 through the video conversion chip 10, so that the LCOS panel 20 displays according to the MIPI signal and the backlight provided by the light source assembly 30.
Further, the display driving system in this embodiment is mainly applied to an AR display driving system, that is, the display driving system is simple in structure and can meet various application requirements, such as being applied to an AR complete machine system or a production line assembly calibration test system of an AR product, by setting the video conversion chip 10, the LCOS panel 20, and the light source assembly 20 to realize an AR display function.
Optionally, the video conversion chip 10 of this embodiment is configured to convert a video signal in an HDMI signal to obtain an MIPI signal, and transmit the MIPI signal to the LCOS panel 20, that is, the MIPI signal is a signal that can be identified by the LCOS panel 20. The video conversion chip 10 and the LCOS panel 20 are transmitted through a 4-Lane MIPI DSID-PHY 1.2 protocol to realize data throughput of 1Gbps/Lane, thereby realizing a function of supporting 1080P display.
Further, the light source assembly 30 may provide a backlight for the LCOS panel 20, so that the LCOS panel 20 displays according to the received MIPI signal. That is, a light receiving unit (not shown) is disposed in the LCOS panel 20, that is, when the light receiving unit receives the backlight provided by the light source assembly 30, the liquid crystal molecules on the LCOS panel 20 are controlled to display according to the MIPI signal.
Further, when the LCOS panel 20 displays, the single pixel point of the displayed image is in a controlled state, that is, only after the liquid crystal molecules are turned over, the single pixel point in the controlled state can effectively display. In order to enable the LCOS panel 20 to normally display, in this embodiment, an inversion control unit is disposed in the LCOS panel 20, and the inversion control unit inverts liquid crystal molecules in the LCOS panel according to the MIPI signal, so as to implement display driving of the LCOS panel 20.
In an embodiment, the light source assembly 30 includes a driving module 31 and a light emitting module 32 in driving connection with the driving module 31, where the driving module 31 is electrically connected to the LCOS panel 20, and is configured to receive a synchronous driving signal generated by the LCOS panel 20 and drive the light emitting module 32 to emit light according to a set timing sequence according to the synchronous driving signal.
Specifically, after the LCOS panel 20 receives the MIPI signal converted by the video conversion chip 10, the LCOS panel 20 generates a control signal, and converts the control signal into a synchronous driving signal that can be identified by the driving module 31, so that the driving module 31 drives the light emitting module 32 to emit light through the synchronous driving signal, so as to implement synchronization between the light emitting module 32 and the LCOS panel 20.
Optionally, the light emitting module 32 is an LED panel, and a red LED lamp, a green LED lamp and a blue LED lamp are disposed on the LED panel, that is, the driving module 31 drives the red LED lamp, the green LED lamp and the blue LED lamp to set a time sequence to be turned on through the synchronous driving signal.
Taking the synchronous driving signal as the PWM modulation signal as an example, as shown in fig. 2, the setting timing sequence is that the red LED lamp, the green LED lamp and the blue LED lamp are independently turned on once in one period T, where R is the red LED lamp, G is the green LED lamp, and B is the blue LED lamp. Since the color image displayed on the LCOS panel 20 is formed by combining six monochrome images, i.e. the display effect can be enhanced by controlling and adjusting the lighting of the LED lamp six times per frame, i.e. taking 60Hz refresh frequency as an example, when each color image is displayed, the synchronous driving signal realizes the lighting operation of the red LED lamp, the green LED lamp and the blue LED lamp twice respectively.
Optionally, the video conversion chip 10 is a TC358870XBG chip, and is configured to convert the HDMI signal into an MIPI signal, and transmit the MIPI signal to the LCOS panel 20. Of course, in other embodiments, the video conversion chip 10 may also be a chip of other types, as long as the chip can convert the HDMI signal into the MIPI signal, and the invention is not limited herein.
Further, the display driving system further includes a microcontroller 40, the video conversion chip 10, the LCOS panel 20 and the light source assembly 30 are electrically connected to the microcontroller 40, and the microcontroller 40 is configured to perform initial configuration on the video conversion chip 10, the LCOS panel 20 and the light source assembly 30.
Specifically, the microcontroller 40 is respectively connected to the video conversion chip 10, the LCOS panel 20 and the light source assembly 30 through an I2C bus (Inter-Integrated Circuit, two-wire serial bus), so that the microcontroller 40 can perform an operation of initial configuration on the video conversion chip 10, the LCOS panel 20 and the light source assembly 30.
In an embodiment, the display driving system further includes a video interface 50, and the video interface 50 is configured to receive an HDMI signal input by an external device and transmit the HDMI signal to the video conversion chip 10. Here, the external device may be a terminal device 60, and the terminal device 60 is communicatively connected to the microcontroller 40 through an I2C bus, that is, the terminal device 60 may perform data transmission with the microcontroller 40.
Optionally, the video interface 50 is an interface on the terminal device 60, that is, the terminal device 60 transmits an HDMI signal to the video conversion chip 10 through the video interface 50. In this embodiment, the terminal device 60 may be a PC device; of course, in other embodiments, the terminal device 60 may be another terminal device, and is not limited herein.
Further, since the microcontroller 40 can perform an operation of initially configuring the video conversion chip 10, the LCOS panel 20, and the light source assembly 30, that is, storing the initialization configuration information of the video conversion chip, the LCOS panel, and the light source assembly, the display driving system further includes a configuration memory 70 in this embodiment, the configuration memory 70 is electrically connected to the microcontroller 40, and is configured to store the initialization configuration information of the video conversion chip 10, the LCOS panel 20, and the light source assembly 30.
Specifically, the configuration memory 70 is communicatively connected to the microcontroller 40 through an I2C bus, that is, the microcontroller 40 may obtain initialization configuration information from the configuration memory 70, where the initialization configuration information is stored in the video conversion chip 10, the LCOS panel 20, and the light source assembly 30, and perform initialization configuration on the video conversion chip 10, the LCOS panel 20, and the light source assembly 30 respectively according to the obtained initialization configuration information.
Optionally, the configuration memory 70 is a non-volatile memory, so that the stored initialization configuration information of the video conversion chip 10, the LCOS panel 20 and the light source assembly 30 is not lost when the display driving system is powered off.
Further, as shown in fig. 3, the configuration memory 70 includes a first storage area a, a second storage area b, a third storage area c, and a fourth storage area d. The first storage area a is used for storing a main program, and the stored main program is loaded to the internal space of the microcontroller 40 by the microcontroller 40 to run after being powered on; the second storage area b is used for solidifying parameters of the driving module 31 and calibration parameters of the light emitting module 32 in the testing process of the optical machine, such as parameter information including current, voltage, color coordinate corresponding table and the like; the third storage area c is used for initializing configuration information of the video conversion chip 10, such as information including video source format selection, audio parameter setting, and the like; the fourth storage area d is used for initializing configuration information of the LCOS panel 20 to display an image, so as to complete displaying a specific image on the LCOS panel 20, such as: the adjustment of the specific resolution may be achieved by adjusting the cropped pixel display register of the internal register of the LCOS panel 20 using the area of the LCOS panel 20 displaying 720P.
Optionally, the storage addresses of the first storage area a, the second storage area b, the third storage area c, and the fourth storage area d in the configuration memory 70 are gradually increased, or in other embodiments, the storage addresses of the first storage area a, the second storage area b, the third storage area c, and the fourth storage area d in the configuration memory 70 are gradually decreased, which is not limited herein.
Further, the configuration memory 70 further includes a fifth storage area e, and the fifth storage area e is used for storing system information and machine states, such as system software version number, system boot time, system history fault, and other information. And the fifth storage area e is the storage area with the highest address. Of course, in other embodiments, the fifth storage area e is a storage area of the lowest address or a storage area of another address, and is not limited herein.
In an embodiment of the present invention, the display driving system includes a video conversion chip 10, an LCOS panel 20, and a light source assembly 30, where the video conversion chip 10 is configured to convert a video signal in an input HDMI signal into an MIPI signal; the LCOS panel 20 is electrically connected to the video conversion chip 10, and the video conversion chip 10 transmits the converted MIPI signal to the LCOS panel 20; the light source assembly 30 is electrically connected to the LCOS panel 20 and configured to provide backlight to the LCOS panel 20; the display driving system includes a display driving system, a video conversion chip 10, an LCOS panel 20, a light source assembly 30, and an overturning control unit, where the LCOS panel 20 is internally provided with an overturning control unit, and the overturning control unit is used for overturning liquid crystal molecules in the LCOS panel 20 according to the MIPI signal, that is, the display of the LCOS panel 20 can be realized by integrating the video conversion chip 10, the LCOS panel 20, and the light source assembly 30, so as to simplify the structure of the display driving system, and effectively use system resources.
Based on the above embodiment, the present invention also provides a display driving method.
In one embodiment, as shown in fig. 4, the display driving method includes:
s100, converting a video signal in the HDMI signal into an MIPI signal;
s200, overturning liquid crystal molecules in the LCOS panel according to the MIPI signal.
As can be seen from the description of the above embodiments, the display driving system includes a video conversion chip, an LCOS panel, a light source assembly, a microcontroller, a video interface, and a terminal device. In this embodiment, the video interface is disposed on the terminal device, and the microcontroller may be in communication connection with the video conversion chip, the LCOS panel, the light source module, and the terminal device through an I2C bus.
Further, the terminal device transmits the HDMI signal to the video conversion chip through the video interface. In this embodiment, the terminal device may be a PC device; of course, in other embodiments, the terminal device may be other terminal devices, and is not limited herein.
That is, the video conversion chip converts the video signal in the HDMI signal into the MIPI signal in this embodiment. The video conversion chip is a TC358870XBG chip and is used for converting HDMI signals into MIPI signals and transmitting the MIPI signals to the LCOS panel. Of course, in other embodiments, the video conversion chip may also be a chip of other types, and is not limited herein.
Further, after the video conversion chip converts the video signal in the HDMI signal into the MIPI signal, the video conversion chip transmits the MIPI signal obtained after the conversion to the LCOS panel, and the MIPI signal is a signal that can be identified by the LCOS panel. The video conversion chip and the LCOS panel are transmitted through a 4-Lane MIPI DSID-PHY 1.2 protocol to realize the data throughput of 1Gbps/Lane, so that the function of supporting 1080P display is realized.
Further, after the LCOS panel receives the MIPI signal, since the LCOS panel displays the image, the single pixel point of the displayed image is in a controlled state, that is, only after the liquid crystal molecules are turned over, the single pixel point in the controlled state can be effectively displayed. In order to enable the LCOS panel to normally display, in this embodiment, an inversion control unit is disposed in the LCOS panel, and the inversion control unit inverts liquid crystal molecules in the LCOS panel according to the MIPI signal, so as to implement display driving of the LCOS panel.
In addition, in order to enable the liquid crystal molecules in the LCOS panel to normally display, a light source assembly is disposed in the present embodiment to provide a backlight to the liquid crystal molecules in the LCOS panel.
Specifically, the display driving method further includes:
receiving a synchronous driving signal generated by the LCOS panel;
and driving the light emitting module to emit light according to a set time sequence according to the synchronous driving signal.
Namely, after the light source assembly receives the synchronous driving signal generated by the LCOS panel, the light emitting module is driven to emit light according to a set time sequence according to the synchronous driving signal.
In an embodiment, the light source assembly includes a driving module and a light emitting module in driving connection with the driving module, and the driving module is electrically connected with the LCOS panel and is configured to receive a synchronous driving signal generated by the LCOS panel and drive the light emitting module to emit light according to a set timing sequence according to the synchronous driving signal.
Specifically, after the LCOS panel receives the MIPI signal converted by the video conversion chip, the LCOS panel generates a control signal and converts the control signal into a synchronous driving signal that can be identified by the driving module, so that the driving module drives the light emitting module to emit light through the synchronous driving signal, thereby realizing synchronization between the light emitting module and the LCOS panel.
Optionally, the light emitting module is an LED panel, and a red LED lamp, a green LED lamp, and a blue LED lamp are disposed on the LED panel, that is, the driving module drives the red LED lamp, the green LED lamp, and the blue LED lamp to set a time sequence to light up through the synchronous driving signal.
Taking the synchronous driving signal as a PWM modulation signal as an example, the set time sequence is that the red LED lamp, the green LED lamp, and the blue LED lamp are independently turned on once in one period T. Because the color image displayed on the LCOS panel is formed by combining six monochromatic images, namely, the display effect can be enhanced by controlling and adjusting the lighting of the LED lamp for six times per frame, that is, taking 60Hz refresh frequency as an example, when each color image is displayed, the synchronous driving signal realizes the lighting operation of the red LED lamp, the green LED lamp and the blue LED lamp for two times respectively.
Further, before the step S100, the microcontroller needs to perform initial configuration on the video conversion chip, the LCOS panel, and the light source module, that is, to store the initialization configuration information of the video conversion chip, the LCOS panel, and the light source module, the display driving system further includes a configuration memory, where the configuration memory is electrically connected to the microcontroller and is used to store the initialization configuration information of the video conversion chip, the LCOS panel, and the light source module.
Specifically, the configuration memory is communicatively connected to the microcontroller through an I2C bus, that is, the microcontroller may acquire and store initialization configuration information of the video conversion chip, the LCOS panel, and the light source assembly from the configuration memory, and perform initialization configuration on the video conversion chip, the LCOS panel, and the light source assembly according to the acquired initialization configuration information.
Optionally, the configuration memory is a non-volatile memory, so that when the display driving system is powered off, the stored initialization configuration information of the video conversion chip, the LCOS panel and the light source assembly is not lost.
Further, the configuration memory includes a first storage area a, a second storage area b, a third storage area c, and a fourth storage area d. The first storage area a is used for storing a main program, and the stored main program is loaded to the internal space of the microcontroller 40 by the microcontroller to run after being electrified; the second storage area b is used for solidifying parameters of the driving module and calibration parameters of the light-emitting module in the testing process of the light machine, such as parameter information including current, voltage, color coordinate corresponding tables and the like; the third storage area c is used for initializing configuration information of the video conversion chip, such as information including video source format selection, audio parameter setting and the like; the fourth storage area d is used for initializing configuration information of the LCOS panel to display an image, so as to complete displaying a specific image on the LCOS panel, such as: the adjustment of the specific resolution can be realized by adjusting the clipping pixel display register of the internal register of the LCOS panel using the area of the LCOS panel display 720P.
Optionally, the storage addresses of the first storage area a, the second storage area b, the third storage area c, and the fourth storage area d in the configuration memory are gradually increased, or in other embodiments, the storage addresses of the first storage area a, the second storage area b, the third storage area c, and the fourth storage area d in the configuration memory are gradually decreased, which is not limited herein.
Further, the configuration memory further includes a fifth storage area e, where the fifth storage area e is used for storing system information and machine states, such as system software version number, system boot usage time, system history fault, and other information. And the fifth storage area e is the storage area with the highest address. Of course, in other embodiments, the fifth storage area e is a storage area of the lowest address or a storage area of another address, and is not limited herein.
In the embodiment of the present invention, the display driving method includes converting a video signal in an HDMI signal into an MIPI signal, and turning over liquid crystal molecules in the LCOS panel according to the MIPI signal, that is, the technical scheme provided in this embodiment converts the HDMI signal to obtain the MIPI signal, so that the display of the LCOS panel can be realized, and thus, the structure of the display driving system is simplified, and system resources are effectively and effectively utilized.
In addition, the present invention also provides a display device, which includes a memory, a processor, and a display driver stored in the memory and capable of running on the processor, wherein the display driver implements the steps of the display driving method according to the above embodiment when executed by the processor.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A display driving system, comprising:
the video conversion chip is used for converting the video signal in the input HDMI signal into an MIPI signal;
the LCOS panel is electrically connected with the video conversion chip, and the video conversion chip transmits the converted MIPI signal to the LCOS panel;
the light source assembly is electrically connected with the LCOS panel and is used for providing backlight for the LCOS panel;
and the LCOS panel is internally provided with a turnover control unit which is used for turning over liquid crystal molecules in the LCOS panel according to the MIPI signal.
2. The display driving system of claim 1, wherein the light source assembly comprises:
the driving module is electrically connected with the LCOS panel and used for receiving a synchronous driving signal generated by the LCOS panel and driving the light-emitting module to emit light according to a set time sequence according to the synchronous driving signal.
3. The display driving system according to claim 1, wherein the video conversion chip is a TC358870XBG chip.
4. The display driving system according to claim 1, further comprising:
microcontroller, the video conversion chip the LCOS panel and light source subassembly electric connection respectively in microcontroller, microcontroller is used for right the video conversion chip the LCOS panel and the light source subassembly carries out initial configuration.
5. The display driving system according to claim 4, further comprising:
and the configuration memory is electrically connected with the microcontroller and is used for storing the video conversion chip, the LCOS panel and the initialization configuration information of the light source assembly.
6. The display driving system according to claim 5, wherein the configuration memory is a nonvolatile memory.
7. The display driving system according to claim 1, wherein the display driving system further comprises a video interface, and the video interface is configured to receive an HDMI signal input by an external device and transmit the HDMI signal to the video conversion chip.
8. A display driving method applied to the display driving system according to any one of claims 1 to 7, the display driving method comprising:
converting a video signal in the HDMI signal into an MIPI signal;
and overturning the liquid crystal molecules in the LCOS panel according to the MIPI signal.
9. The display driving method according to claim 8, further comprising:
receiving a synchronous driving signal generated by the LCOS panel;
and driving the light emitting module to emit light according to a set time sequence according to the synchronous driving signal.
10. A display device comprising a memory, a processor, and a display driver stored in the memory and executable on the processor, the display driver when executed by the processor implementing the steps of the display driving method according to any one of claims 8 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113257188A (en) * | 2021-06-28 | 2021-08-13 | 南京初芯集成电路有限公司 | Device and method for controlling TFT screen backlight in OLED control panel system |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432994A (en) * | 2003-03-04 | 2003-07-30 | 南开大学 | Field order color data processor with dynamic temporary memory for subfield data of liquid crystal on silicon |
| CN201378246Y (en) * | 2009-04-20 | 2010-01-06 | 东莞奥美佳电子有限公司 | LCOS projector control system based on white light LED |
| CN101697036A (en) * | 2009-11-13 | 2010-04-21 | 深圳市博视创电子有限公司 | Information display system of automobile glass and imaging method thereof |
| CN101866098A (en) * | 2009-04-15 | 2010-10-20 | 深圳高迪数码有限公司 | White light LED based LCOS projector control system and image processing mode |
| WO2011163138A1 (en) * | 2010-06-22 | 2011-12-29 | Qualcomm Mems Technologies, Inc. | Apparatus and methods for processing frames of video data upon transmission across a display interface using a block- based encoding scheme and a tag id |
| CN203775321U (en) * | 2013-08-29 | 2014-08-13 | 深圳市长江力伟股份有限公司 | Silicon-based liquid crystal display screen driving device |
| CN203773915U (en) * | 2013-08-29 | 2014-08-13 | 深圳市长江力伟股份有限公司 | Silicon-based liquid crystal display screen driving chip |
| CN205584403U (en) * | 2016-02-29 | 2016-09-14 | 深圳市海丽空间科技有限公司 | Be applied to double -screen display circuit of virtual reality equipment |
| CN106205453A (en) * | 2016-07-06 | 2016-12-07 | 昀光微电子（上海）有限公司 | A kind of microdisplay on silicon |
| CN206133463U (en) * | 2016-07-29 | 2017-04-26 | 北京麦课在线教育技术有限责任公司 | Internet security and life integration study shop |
| CN206421641U (en) * | 2016-08-03 | 2017-08-18 | 北京麦课在线教育技术有限责任公司 | A kind of virtual reality experiences safely shop |
| CN207268926U (en) * | 2017-08-30 | 2018-04-24 | 东莞市芯萌慧显电子科技有限公司 | A kind of LCOS sequential colorization display systems of high stability |
| CN108806622A (en) * | 2017-05-06 | 2018-11-13 | 北京微美云息软件有限公司 | Wear-type holography LCOS display |
| CN208655224U (en) * | 2018-07-24 | 2019-03-26 | 亚世光电股份有限公司 | HDMI multiple interfaces convert intelligent liquid-crystal display module |
-
2020
- 2020-07-16 CN CN202010690227.9A patent/CN111640406A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432994A (en) * | 2003-03-04 | 2003-07-30 | 南开大学 | Field order color data processor with dynamic temporary memory for subfield data of liquid crystal on silicon |
| CN101866098A (en) * | 2009-04-15 | 2010-10-20 | 深圳高迪数码有限公司 | White light LED based LCOS projector control system and image processing mode |
| CN201378246Y (en) * | 2009-04-20 | 2010-01-06 | 东莞奥美佳电子有限公司 | LCOS projector control system based on white light LED |
| CN101697036A (en) * | 2009-11-13 | 2010-04-21 | 深圳市博视创电子有限公司 | Information display system of automobile glass and imaging method thereof |
| WO2011163138A1 (en) * | 2010-06-22 | 2011-12-29 | Qualcomm Mems Technologies, Inc. | Apparatus and methods for processing frames of video data upon transmission across a display interface using a block- based encoding scheme and a tag id |
| CN203773915U (en) * | 2013-08-29 | 2014-08-13 | 深圳市长江力伟股份有限公司 | Silicon-based liquid crystal display screen driving chip |
| CN203775321U (en) * | 2013-08-29 | 2014-08-13 | 深圳市长江力伟股份有限公司 | Silicon-based liquid crystal display screen driving device |
| CN205584403U (en) * | 2016-02-29 | 2016-09-14 | 深圳市海丽空间科技有限公司 | Be applied to double -screen display circuit of virtual reality equipment |
| CN106205453A (en) * | 2016-07-06 | 2016-12-07 | 昀光微电子（上海）有限公司 | A kind of microdisplay on silicon |
| CN206133463U (en) * | 2016-07-29 | 2017-04-26 | 北京麦课在线教育技术有限责任公司 | Internet security and life integration study shop |
| CN206421641U (en) * | 2016-08-03 | 2017-08-18 | 北京麦课在线教育技术有限责任公司 | A kind of virtual reality experiences safely shop |
| CN108806622A (en) * | 2017-05-06 | 2018-11-13 | 北京微美云息软件有限公司 | Wear-type holography LCOS display |
| CN207268926U (en) * | 2017-08-30 | 2018-04-24 | 东莞市芯萌慧显电子科技有限公司 | A kind of LCOS sequential colorization display systems of high stability |
| CN208655224U (en) * | 2018-07-24 | 2019-03-26 | 亚世光电股份有限公司 | HDMI multiple interfaces convert intelligent liquid-crystal display module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257188A (en) * | 2021-06-28 | 2021-08-13 | 南京初芯集成电路有限公司 | Device and method for controlling TFT screen backlight in OLED control panel system |
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