CN112214193A - Edge display system and method under multichannel data optimization - Google Patents
Edge display system and method under multichannel data optimization Download PDFInfo
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Abstract
The invention provides an edge display system and method under multi-channel data optimization. The display data receiving channel is used for receiving display data which need to be displayed on the display interface of the edge display system; the display data attribute analysis component is used for carrying out attribute analysis on the display data received by the display data receiving channel; a display data pixel segmentation component segments pixel elements contained in the temporal data stream based on an attribute analysis result of the display data attribute analysis component for the temporal data stream; and the pixel display distribution component performs display distribution on the pixel elements segmented by the display data pixel segmentation component. According to the technical scheme, the display data are subjected to multi-channel data optimization and partition display, so that the response speed of the display system is improved.
Description
Technical Field
The invention belongs to the technical field of display control, and particularly relates to an edge display system under multi-channel data optimization.
Background
The Display is used as an interface for man-machine communication to carry a large amount of information, and generally, the Liquid Crystal Display (LCD) has established a status of being immovable in the Display market with its good Display effect to meet the requirements of information amount, quality, practicability, economy, and the like. Among them, a Thin Film Transistor (TFT) liquid crystal display realizes a gray scale by changing a voltage-controlled liquid crystal turning degree. The TFT-LCD has wide application, and can be applied to portable machines such as calculators, watches, mobile phones and the like; meanwhile, the method can be applied to OA machines such as word processors and computers; the liquid crystal display can also be applied to household appliances such as liquid crystal televisions, digital cameras and the like; in addition, the present invention is also applied to in-vehicle instruments, GPS, and the like; the device can also be applied to other products such as thermometers, sphygmomanometers, vending machines and the like.
The basic structure of the liquid crystal display is a display screen, a driving circuit and a backlight source, wherein the display screen is composed of upper glass, lower glass, liquid crystal and other materials and realizes the display of various pictures, the driving circuit comprises an FPC (flexible printed circuit), a PCB (printed circuit board), an IC (integrated circuit) and the like and is used for providing information of various display pictures, and the backlight source is composed of an LED (light emitting diode), a light guide plate, an optical membrane and the like and provides a light source for the TFT-. The core part of the liquid crystal display screen is a TFT-LCD display screen, different liquid crystals can show various display modes by utilizing Fedricksz conversion principle according to the difference between the direction of an external electric field in the liquid crystal display screen and the arrangement mode of liquid crystal molecules, and the common display modes in the TFT-LCD are TN, IPS and VA mainly.
The optical characteristics of the lcd are its image quality level, the feeling of the human eye experience, and the level of the product design, and generally, the conventional optics of the lcd mainly include brightness (brightness of White), Contrast Ratio (CR), view angle (ViewingAngle), Response Time (Rt), and Color Gamut (Color Gamut).
The response time includes an on time Ton representing a time interval during which the luminance is decreased from 100% to 10% during the power-off state to the power-on state, and an off time Toff representing a time interval during which the luminance is increased from 0% to 90% during the power-on state to the power-off state. The smaller the response time is, the faster the response speed of the screen switching is, and the smoother the screen switching is. The display with large response time can have the phenomenon of 'visual retention' of human eyes to different degrees when displaying dynamic pictures, and the fast-changing pictures can form short-time impression in human brain. Studies have shown that the display speed of the picture acceptable to people is generally 24 sheets/second, which means that when the playing speed is less than 24 frames per second, people will obviously feel the pause of the picture, thereby generating discomfort. Calculated in this way, each frame is displayed for no more than 40 ms. Therefore, for the liquid crystal display, the response speed is less than 40ms and the frequency of the picture switching is not lower than the speed of 60 frames per second.
The mainstream development direction of the front liquid crystal display device is wide viewing angle display, and the liquid crystal display device in the wide viewing angle mode can enable people to see a complete and undistorted picture from different directions. However, when the privacy and important information are concerned, the user does not want to view the displayed contents by the surrounding people, and the wide viewing angle display device causes inconvenience to the user. In a public place with a complicated population such as in an elevator or a train such as a station, people beside and behind the user can completely view information using the wide-viewing-angle display. Need wide visual angle to show when sharing information with family's friend, for the people that is located big visual angle and watches provide clear content, need narrow visual angle display mode under the occasion that only needs the individual to watch, prevent revealing of personal information, the display that can carry out wide visual angle and narrow visual angle free switch like this comes to the end.
Chinese patent application No. CN201510989378 proposes a liquid crystal display device capable of switching viewing angles, which includes a first substrate, wherein a first electrode and a second electrode are disposed on the first substrate, and the second electrode is located between the first substrate and the first electrode; the second substrate is arranged opposite to the first substrate, and a third electrode is arranged on the second substrate; and the liquid crystal layer is positioned between the first substrate and the second substrate, liquid crystal molecules in the liquid crystal layer are positive liquid crystal molecules, initial pretilt angles of the liquid crystal molecules of the liquid crystal layer, which are adjacent to the first substrate, are the same as those of the liquid crystal molecules of the second substrate, and the aim of switching between a wide viewing angle and a narrow viewing angle can be fulfilled without using a shielding film, increasing the thickness and the cost of a liquid crystal display and sacrificing the aperture opening ratio.
Further, the operation modes of the liquid crystal display devices disclosed in patent documents GB2428152a1, WO2009110128a1, WO201134209, WO201134208, and JP5756883B2 and the like provide a privacy (narrow viewing angle) display mode. The luminance variation generated as a result of the second data value is used to obscure an image generated if only the received image data is input, so that an observer at the first observation position outside the expected observation range of the privacy mode cannot recognize the image due to the overlapping luminance variation, or can see only a degraded version of the image. A viewer at a second observation position within the expected observation range in the privacy mode hardly perceives or does not perceive the intensity variation, and thus sees an original image (i.e., an image generated if the received image data is input alone) with little or no image quality degradation.
However, in practical use, when the viewing-angle-controllable liquid crystal display processes multiple concurrent paths of data to be displayed including time data streams, the viewing angle is controllable, and at the same time, the response speed of the viewing-angle-controllable liquid crystal display is also affected, the loading speed of display data is reduced, and the wide application of the viewing-angle-controllable liquid crystal display in a high-end real-time display scene is limited, and an effective solution is not provided in the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides an edge display system and method under multi-channel data optimization. The edge display system includes a display data receiving channel, a display data attribute analysis component, a display data pixel segmentation component, and a pixel display assignment component. The display data receiving channel is used for receiving display data which need to be displayed on the display interface of the edge display system; the display data attribute analysis component is used for carrying out attribute analysis on the display data received by the display data receiving channel; a display data pixel segmentation component segments pixel elements contained in the temporal data stream based on an attribute analysis result of the display data attribute analysis component for the temporal data stream; and the pixel display distribution component performs display distribution on the pixel elements segmented by the display data pixel segmentation component. According to the technical scheme, the display data are subjected to multi-channel data optimization and partition display, so that the response speed of the display system is improved.
In a first aspect of the invention, an edge display system under multi-channel data optimization is provided, the edge display system comprising at least one display interface, the display interface being divided into at least a central display area and an edge display area.
The edge display system includes a display data receiving channel, a display data attribute analysis component, a display data pixel segmentation component, and a pixel display assignment component.
As a first advantage of the present invention, the display data receiving channel is configured to receive display data to be displayed on the display interface of the edge display system, where the display data enters the display data receiving channel in a form of a time data stream;
the display data attribute analysis component is configured to perform attribute analysis on the display data received by the display data receiving channel, where the attributes include a size, a duration, and optical attributes of the temporal data stream, and the optical attributes include RGB channel values of pixels included in the temporal data stream;
the display data pixel segmentation component segments pixel elements contained in the time data stream based on the attribute analysis result of the display data attribute analysis component on the time data stream;
as a second advantage of the present invention, the pixel display assignment component performs display assignment on pixel elements segmented by the display data pixel segmentation component, the display assignment including: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements in the first and second sub-portions.
As one of the key technical means for embodying the above advantages, the entering of the display data into the display data receiving channel in the form of a time data stream specifically includes:
the display data receiving channel comprises a plurality of parallel data storage queues;
and storing the display data into the plurality of parallel data storage queues by taking the data generation time as a reference, wherein the difference between the earliest generation time and the latest generation time of the display data stored in each data storage queue is less than a preset time length value.
As one of the key technical means for embodying the above advantages, the display data attribute analysis component is configured to perform attribute analysis on the display data received by the display data receiving channel, and specifically includes:
the display data attribute analysis component takes a data storage queue as a unit, acquires all display data stored in the data storage queue from each data storage queue, and analyzes the duration value and the data size value of all the display data;
sending the entire display data to the display data pixel segmentation component if one of the duration value or the data size value is greater than a first predetermined value;
otherwise, sending the whole display data to the pixel display distribution component.
In the technical scheme of the invention, the response time C of the central display area of the liquid crystal displaytThe liquid crystal box thickness d and the equivalent elastic coefficient K of the central display areaeAnd the rotational viscosity coefficient gamma.
Response time E of edge display region of the liquid crystal displaytDisplaying the threshold voltage U of the area by the edgethA driving voltage UvAnd the response time C of the central display areatAnd (4) determining.
In a second aspect of the present invention, there is also provided a multi-channel data optimization method for a viewing-angle controllable liquid crystal display, the method being applicable to the edge display system, the method comprising the steps of:
s1: receiving display data required to be displayed on the display interface of the visual angle controllable liquid crystal display;
s2: performing attribute analysis on the display data, wherein the attributes comprise the size, duration and optical attributes of the display data, and the optical attributes comprise RGB channel values of pixels contained in the display data;
s3: segmenting pixel elements contained in the display data based on the attribute analysis result;
s4: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements for the first and second sub-portions;
more specifically, the step S3 specifically includes:
dividing each original pixel contained in the display data into a first main element and a second auxiliary element, wherein the first main element is used for displaying image information, and the second auxiliary element is used for displaying a visual angle.
The above method of the present invention can be implemented automatically by a program in the form of computer instructions, and therefore, in a third aspect of the present invention, there is also provided a non-volatile readable storage medium having stored thereon computer program instructions for executing by a processor and a memory the computer program instructions for implementing the aforementioned method for multi-channel data optimization for a view-controllable liquid crystal display.
In summary, the technical scheme of the invention improves the response speed of the display system by performing multi-channel data optimization and partition display on the display data.
Further advantages of the invention will be apparent in the detailed description section in conjunction with the drawings attached hereto.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a display interface of an edge display system according to an embodiment of the invention;
FIG. 2 is a schematic diagram of the internal modules of the edge display system of FIG. 1;
FIG. 3 is a schematic illustration of a display data store to queue of the edge display system of FIG. 1;
FIG. 4 is a schematic illustration of pixel segmentation and display allocation of the display data of FIG. 3;
FIG. 5 is a flow chart of a multi-channel data optimization method performed using the display system of FIG. 1.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application. The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of a display interface of an edge display system according to an embodiment of the present invention.
In fig. 1, the edge display system includes at least one display interface, which is divided into at least a central display area and an edge display area.
It should be noted that, in fig. 1, although two display regions are divided, the user does not feel that the two display regions exist in appearance, and the display interface is still a conventional overall presentation for the user, and the division is only a virtual division in the internal implementation principle.
Referring next to fig. 2, in fig. 2, the edge display system includes a display data receiving channel, a display data attribute analysis component, a display data pixel segmentation component, and a pixel display assignment component;
the display data receiving channel is used for receiving display data which need to be displayed on the display interface of the edge display system, and the display data enter the display data receiving channel in a time data stream mode;
the display data attribute analysis component is configured to perform attribute analysis on the display data received by the display data receiving channel, where the attributes include a size, a duration, and optical attributes of the temporal data stream, and the optical attributes include RGB channel values of pixels included in the temporal data stream;
the display data pixel segmentation component segments pixel elements contained in the time data stream based on the attribute analysis result of the display data attribute analysis component on the time data stream;
the pixel display allocation component performs display allocation on the pixel elements segmented by the display data pixel segmentation component, where the display allocation includes: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements in the first and second sub-portions.
On the basis of fig. 2, referring to fig. 3, the entering of the display data into the display data receiving channel in the form of a time data stream specifically includes:
the display data receiving channel comprises a plurality of parallel data storage queues;
and storing the display data into the plurality of parallel data storage queues by taking the data generation time as a reference, wherein the difference between the earliest generation time and the latest generation time of the display data stored in each data storage queue is less than a preset time length value.
Fig. 4 shows a process of performing attribute analysis on the display data received by the display data receiving channel, where the process includes:
the display data attribute analysis component takes a data storage queue as a unit, acquires all display data stored in the data storage queue from each data storage queue, and analyzes the duration value and the data size value of all the display data;
sending the entire display data to the display data pixel segmentation component if one of the duration value or the data size value is greater than a first predetermined value; otherwise, sending the whole display data to the pixel display distribution component.
If the duration value and the data size value are both less than a first predetermined value, sending the entire display data to the pixel display distribution component;
and the pixel display distribution component displays all the display data in an edge display area of the display interface.
Further, if one of the duration value or the data size value is greater than a first predetermined value, sending the entire display data to the display data pixel segmentation component;
the display data pixel segmentation component divides each original pixel contained in the whole display data into a first main element and a second auxiliary element, wherein the first main element is used for displaying image information, and the second auxiliary element is used for displaying a visual angle.
The method of dividing pixels in a display data pixel segmentation component is also called sub-pixel method, and is the most commonly used method for controlling the viewing angle of a liquid crystal display. The principle of the method for controlling the visual angle is to divide a complete pixel into two parts: the display device includes a main pixel for image display and a sub-pixel for controlling a viewing angle.
More specifically, in the present embodiment, one pixel is divided into a main pixel and a sub-pixel, which are both in FFS display mode of positive liquid crystal, and the alignment direction is the same as the direction of the polarizing plate used, but the corresponding electric field direction is different, and the main pixel and the sub-pixel have an area ratio of 2: 1, and are driven separately. When displaying the wide-view mode, only the main pixels are turned on, for example, the main pixels are displayed in the central display area;
in the narrow viewing angle mode, the liquid crystal modes with different directions in the sub-pixel regions can cause light leakage at a large viewing angle in the left-right direction, and in combination with the display effect of the main pixel with a narrow viewing angle, for example, the sub-pixels can be displayed in the edge display region.
There are further implementations of the sub-pixel method, in which RGB channel values for each pixel are available, see in particular the following prior art documents:
Her J H，Shin S J，Lim Y J，et al，Viewing angle switching in in-planes switching liquid crystal display[J].Liq.Cryst.，2011，544(1)：220-226.
Lim Y J，Kim J H，Her J H，et al，Viewing angle switching Of liquid crystal display using fringe-field switching to control off-axis phase retardation[J].J.Phys.D：Appl.Phys.，2010，43(8)：88501.
Lim Y J，Jeong E，Kim Y S，et al，Viewing angle switching in Vertical alignment liquid crystal display by optimizing pixel structure and controlling LC orientation[J].SID Symp Digest Tech Papers.，2007，38(1)：756-759.
Kim M S，Lim Y J，Yoon S K，et al.A controllable Viewing angle LCD with an optically isotropic liquid crystal[J].J.Phys.D：Appl.Phys.，2010，43(14)：1-6.
as an example, the edge display system in all embodiments of the present invention is a viewing angle controllable liquid crystal display.
Response time C of the central display area of the liquid crystal displaytThe liquid crystal box thickness d and the equivalent elastic coefficient K of the central display areaeAnd determining the rotation viscosity coefficient gamma as follows:
response time E of edge display region of the liquid crystal displaytDisplaying the threshold voltage U of the area by the edgethA driving voltage UvAnd the response time C of the central display areatThe determination is as follows:
according to experiments, the display system realized by the above embodiment of the present invention can relatively reduce the liquid crystal cell thickness d and the rotational viscosity coefficient γ of the central display region, thereby improving the response speed.
Fig. 5 is a flowchart of a multi-channel data optimization method performed using a view-controllable liquid crystal display including at least one display interface divided into at least a central display region and an edge display region fig. 5 includes steps S1-S4:
the method comprises the following steps:
s1: receiving display data required to be displayed on the display interface of the visual angle controllable liquid crystal display;
s2: performing attribute analysis on the display data, wherein the attributes comprise the size, duration and optical attributes of the display data, and the optical attributes comprise RGB channel values of pixels contained in the display data;
s3: segmenting pixel elements contained in the display data based on the attribute analysis result;
s4: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements for the first and second sub-portions;
in fig. 3, although not shown, the step S3 specifically includes:
dividing each original pixel contained in the display data into a first main element and a second auxiliary element, wherein the first main element is used for displaying image information, and the second auxiliary element is used for displaying a visual angle.
By adopting the configuration, the data processing and rendering speed of the display system is improved by carrying out multi-channel data optimization and partition display on the display data; meanwhile, through the structure of the partition display, the thickness of a liquid crystal box in the central display area and the rotation viscosity coefficient can be relatively reduced, so that the response speed of a display system is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An edge display system under multichannel data optimization comprises at least one display interface, wherein the display interface is at least divided into a central display area and an edge display area; the method is characterized in that:
the edge display system comprises a display data receiving channel, a display data attribute analysis component, a display data pixel segmentation component and a pixel display distribution component;
the display data receiving channel is used for receiving display data which need to be displayed on the display interface of the edge display system, and the display data enter the display data receiving channel in a time data stream mode;
the display data attribute analysis component is configured to perform attribute analysis on the display data received by the display data receiving channel, where the attributes include a size, a duration, and optical attributes of the temporal data stream, and the optical attributes include RGB channel values of pixels included in the temporal data stream;
the display data pixel segmentation component segments pixel elements contained in the time data stream based on the attribute analysis result of the display data attribute analysis component on the time data stream;
the pixel display allocation component performs display allocation on the pixel elements segmented by the display data pixel segmentation component, where the display allocation includes: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements in the first and second sub-portions.
2. The edge display system under multi-channel data optimization of claim 1, wherein the display data entering the display data receiving channel in the form of a time data stream comprises:
the display data receiving channel comprises a plurality of parallel data storage queues;
and storing the display data into the plurality of parallel data storage queues by taking the data generation time as a reference, wherein the difference between the earliest generation time and the latest generation time of the display data stored in each data storage queue is less than a preset time length value.
3. The system of claim 1, wherein the display data attribute analysis component is configured to perform attribute analysis on the display data received by the display data receiving channel, and further comprising:
the display data attribute analysis component takes a data storage queue as a unit, acquires all display data stored in the data storage queue from each data storage queue, and analyzes the duration value and the data size value of all the display data;
sending the entire display data to the display data pixel segmentation component if one of the duration value or the data size value is greater than a first predetermined value; otherwise, sending the whole display data to the pixel display distribution component.
4. The multi-channel data-optimized edge display system of claim 3, wherein:
if the duration value and the data size value are both less than a first predetermined value, sending the entire display data to the pixel display distribution component;
and the pixel display distribution component displays all the display data in an edge display area of the display interface.
5. The multi-channel data-optimized edge display system of claim 3, wherein:
sending the entire display data to the display data pixel segmentation component if one of the duration value or the data size value is greater than a first predetermined value;
the display data pixel segmentation component divides each original pixel contained in the whole display data into a first main element and a second auxiliary element, wherein the first main element is used for displaying image information, and the second auxiliary element is used for displaying a visual angle.
6. An edge display system under multi-channel data optimization as claimed in any one of claims 1 to 5, wherein:
the edge display system is a liquid crystal display with controllable visual angle.
7. The multi-channel data-optimized edge display system of claim 6, wherein:
response time C of the central display area of the liquid crystal displaytThe liquid crystal box thickness d and the equivalent elastic coefficient K of the central display areaeAnd determining the rotation viscosity coefficient gamma as follows:
8. the multi-channel data-optimized edge display system of claim 7, wherein:
response time E of edge display region of the liquid crystal displaytDisplaying the threshold voltage U of the area by the edgethA driving voltage UvAnd the response time C of the central display areatThe determination is as follows:
9. a multi-channel data optimization method for a view-controllable liquid crystal display comprising at least one display interface divided into at least a central display area and an edge display area, the method comprising the steps of:
s1: receiving display data required to be displayed on the display interface of the visual angle controllable liquid crystal display;
s2: performing attribute analysis on the display data, wherein the attributes comprise the size, duration and optical attributes of the display data, and the optical attributes comprise RGB channel values of pixels contained in the display data;
s3: segmenting pixel elements contained in the display data based on the attribute analysis result;
s4: displaying a first sub-portion of the segmented pixel elements in the central display region and a second sub-portion of the segmented pixel elements in the edge display region, there being partially overlapping elements for the first and second sub-portions;
characterized in that step S3 specifically includes:
dividing each original pixel contained in the display data into a first main element and a second auxiliary element, wherein the first main element is used for displaying image information, and the second auxiliary element is used for displaying a visual angle.
10. A non-transitory readable storage medium having stored thereon computer program instructions for execution by a processor and a memory for implementing the method of claim 9.
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