CN108288448B - Display driving system, driving method thereof and display device - Google Patents
Display driving system, driving method thereof and display device Download PDFInfo
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- CN108288448B CN108288448B CN201710014018.0A CN201710014018A CN108288448B CN 108288448 B CN108288448 B CN 108288448B CN 201710014018 A CN201710014018 A CN 201710014018A CN 108288448 B CN108288448 B CN 108288448B
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- 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
Abstract
The invention provides a display driving system, a driving method thereof and a display device, wherein the display driving system comprises: a display signal processing unit and a data conversion unit; the display signal processing unit is used for receiving an image signal, and generating and outputting a first display data signal according to the image signal; the data conversion unit is connected with the display signal processing unit and used for receiving the first display data signal and performing data conversion on the first display data signal according to the coordinate information of the first display data signal to obtain a second display data signal. In the display driving system, the driving method thereof and the display device provided by the invention, the data conversion unit is adopted to convert the display data, so that the display driving system can adjust the chromaticity, the brightness and the resolution of an image in a way of matching with the bending state of the display panel, and further the display effect of the image is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display driving system, a driving method thereof, and a display device.
Background
A flexible display is a display device that is flexible or bendable, fabricated on a flexible carrier (also called flexible substrate). Because the flexible display has the characteristics of high lightness, impact resistance, flexibility, wearability, convenient carrying and the like, the flexible display is known as one of the most promising products in the twenty-first century and has attracted more and more attention of people. At present, flexible displays have been widely used in various high-performance display fields such as mobile phones, televisions, computers, monitoring devices, smart watches, and the like.
A flexible display generally includes a display panel and a driving system for driving the display panel, the driving system providing a display data signal to the display panel, and the display panel displaying an image according to the display data signal. When the flexible display is used, a display panel of the flexible display is usually required to be bent, when the display panel is in a bent state (i.e., a curved display state), an image seen by human eyes is different from an original image (i.e., an image in a flat display state) due to an excessively large difference between a viewing distance and a viewing angle of a bent region, and a display effect cannot meet requirements.
Therefore, how to solve the problem that the display effect of the existing flexible display is affected by bending becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a display driving system, a driving method thereof and a display device, which aim to solve the problem that the display effect of the existing flexible display is influenced by bending.
To solve the above technical problem, the present invention provides a display driving system, including: a display signal processing unit and a data conversion unit; the display signal processing unit is used for receiving an image signal, and generating and outputting a first display data signal according to the image signal; the data conversion unit is connected with the display signal processing unit and used for receiving the first display data signal and performing data conversion on the first display data signal according to the coordinate information of the first display data signal to obtain a second display data signal.
Optionally, in the display driving system, the display signal processing unit includes: a signal converter and a signal processor; the signal converter is used for receiving an image signal and performing signal conversion on the image signal; the signal processor is used for receiving a first power supply signal and an image signal after signal conversion, and performing signal processing on the first power supply signal and the image signal to obtain a first display data signal and a second power supply signal required by the work of the display panel.
Optionally, in the display driving system, the data conversion unit includes: the device comprises a data decoding unit, a data processing unit and a data integration unit; the data decoding unit is used for receiving the first display data signal, performing data decoding on the first display data signal, and sending coordinate information obtained by decoding to the data processing unit; the data processing unit is used for outputting the reference data or the adjusting data according to the coordinate information; the data integration unit is used for receiving the reference data or the adjustment data and performing data integration on the reference data or the adjustment data to obtain a second display data signal.
The present invention also provides a display driving method, including:
an image signal is provided to the image processing device,
performing signal processing on the image signal to obtain a first display data signal;
performing data decoding on the first display data signal to obtain coordinate information of the first display data signal; and
and performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal.
Optionally, in the display driving method, the process of performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal includes:
confirming the coordinate information of the first display data signal;
if the coordinate is confirmed to be located in the non-bending area of the display panel, outputting reference data; if the coordinate is confirmed to be located in the bending area of the display panel, outputting adjustment data; and
and performing data integration on the reference data or the adjustment data to obtain a second display data signal.
Optionally, in the display driving method, after performing data integration on the reference data or the adjustment data to obtain a second display data signal, the method further includes: comparing the second display data signal with the first display data signal;
if the comparison result does not meet the display requirement, performing data integration again until the comparison result meets the display requirement; and if the comparison result meets the display requirement, outputting a second display data signal.
Optionally, in the display driving method, while providing the image signal, the method further includes: providing a first power supply signal, and performing voltage conversion on the first power supply signal to obtain a second power supply signal.
Optionally, in the display driving method, before performing signal processing on the image signal, after providing the image signal, the method further includes: and performing signal conversion on the image signal.
The present invention also provides a display device, including: the display driving system and the display panel are connected with the display panel and used for providing driving signals for the display panel.
Optionally, in the display device, the driving signal includes a second power signal and a second display data signal, and the display panel receives the second power signal and the second display data signal provided by the display driving system and displays an image according to the second power signal and the second display data signal.
In the display driving system, the driving method thereof and the display device provided by the invention, the data conversion unit is adopted to convert the display data, so that the display driving system can adjust the chromaticity, the brightness and the resolution of an image in a way of matching with the bending state of the display panel, and further the display effect of the image is improved.
Drawings
FIG. 1 is a schematic diagram of a display driving system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a data conversion unit according to an embodiment of the present invention;
FIG. 3 is a flow chart of a display driving method according to an embodiment of the present invention;
fig. 4 is a flowchart of data conversion performed by the data conversion unit according to the embodiment of the present invention.
Detailed Description
The display driving system, the driving method thereof and the display device according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of a display driving system according to an embodiment of the present invention. As shown in fig. 1, the display driving system 100 includes: a display signal processing unit 110 and a data conversion unit 120; the display signal processing unit 110 is configured to receive an image signal, and generate and output a first display data signal according to the image signal; the data conversion unit 120 is connected to the display signal processing unit 110, and configured to receive the first display data signal, and perform data conversion on the first display data signal according to the coordinate information of the first display data signal to obtain a second display data signal.
Specifically, the display signal processing unit 110 includes: a signal converter 111 and a signal processor 113; the signal converter 111 is configured to receive an image signal and perform signal conversion on the image signal; the signal processor 113 is configured to receive a first power signal and an image signal after signal conversion, and perform signal processing on the first power signal and the image signal respectively to obtain a first display data signal and a second power signal required by the operation of the display panel.
The image signal corresponds to a target image, and the specific type of the image signal is selected according to the design requirement of the product, and may be a low voltage differential signaling (LVDS signal), a transistor-transistor logic level signal (TTL signal), a graphics array signal (VGA signal), or a digital video interface signal (DVI signal), which is not limited herein. The type of the signal converter 111 is set according to the specific type of the image signal, and the image signal may be converted into a signal that can be processed by the signal processor 113.
Please refer to fig. 2, which is a schematic structural diagram of a data conversion unit according to an embodiment of the present invention. As shown in fig. 2, the data conversion unit 120 includes: a data decoding unit 121, a data processing unit 123, and a data integration unit 125; the data decoding unit 121 is configured to perform data decoding on the first display data signal and send coordinate information obtained by the decoding to the data processing unit 123, the data processing unit 123 is configured to output the reference data or the adjustment data according to the coordinate information, and the data integrating unit 125 is configured to receive the reference data or the adjustment data and perform data integration on the reference data or the adjustment data to obtain a second display data signal.
In this embodiment, the display driving system 100 is provided with a data conversion unit 120, and the data conversion unit 120 can obtain the coordinate information of the first display data signal, perform data conversion on the first display data signal according to the coordinate information, convert the first display data signal (i.e. the original display data signal) into the second display data signal (i.e. the modified display data signal), and thereby convert the original target image into a modified image.
The display driving system 100 provided by this embodiment can adjust the image in accordance with the bent state of the display panel, so that even if the display panel is in the bent state, the luminance and the chromaticity of the display panel can be uniform and consistent, and the display effect can be further improved.
Accordingly, the present invention also provides a display driving method using the display driving system 100 as described above. Please refer to fig. 3, which is a flowchart illustrating a display driving method according to an embodiment of the invention. As shown in fig. 3, the display driving method includes:
step S10: providing an image signal;
step S20: performing signal processing on the image signal to obtain a first display data signal;
step S30: performing data decoding on the first display data signal to obtain coordinate information of the first display data signal;
step S40: and performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal.
The display driving method according to the embodiment of the present invention will be described in more detail with reference to fig. 1, 2, and 4.
First, as shown in fig. 1, an image signal is provided to the display signal processing unit 110, and the image signal corresponds to a target image.
Next, as shown in fig. 1, the image signal is signal-processed by the signal processor 113 of the display signal processing unit 110, and a first display data signal is generated and output.
In this embodiment, the image signal is a low voltage differential signaling (LVDS signal), and before the display signal processing unit 110 performs signal processing on the image signal, the signal converter 111 of the display signal processing unit 110 performs signal conversion on the image signal, so as to convert the LVDS signal into a TTL signal.
Referring to fig. 1, while providing the image signal, a first power signal is provided to the display signal processing unit 110, and the display signal processing unit 110 performs voltage conversion on the first power signal to generate and output a second power signal.
Then, as shown in fig. 2, the first display data signal is data-decoded by the data decoding unit 121 of the data conversion unit 120 to acquire coordinate information of the first display data signal.
And then, performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal.
Please refer to fig. 4, which is a flowchart illustrating a data conversion performed by the data conversion unit according to an embodiment of the present invention. As shown in fig. 4, the specific process of performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal includes:
step S41: confirming the coordinate information of the first display data signal;
step S42: if the coordinate is confirmed to be located in the non-bending area of the display panel, outputting reference data; if the coordinate is confirmed to be located in the bending area of the display panel, outputting adjustment data;
step S43: performing data integration on the reference data or the adjustment data to obtain a second display data signal;
step S44: comparing the second display data signal with the first display data signal;
step S45: if the comparison result does not meet the display requirement (namely the display information is not lost), performing data integration again until the comparison result meets the display requirement; and if the comparison result meets the display requirement, outputting a second display data signal.
The reference data includes reference values of chrominance, luminance, and resolution, and the adjustment data includes adjustment values of chrominance, luminance, and resolution. The adjustment value is obtained at an adjustment ratio that is related to a pixel pitch and a viewing distance on the basis of the reference value.
The display driving method is adopted to drive the flexible display panel, and the chromaticity, the brightness and the resolution of each pixel in the bending area can be adjusted, so that the display effect of the target image in a curved surface display state is close to that in a plane display state, and the target image is reproduced.
Correspondingly, the invention also provides a display device. With continued reference to fig. 1, the display device 10 includes: the display driving system 100 and the display panel (not shown in the figure) as described above, the display driving system 100 is connected to the display panel for providing the driving signal to the display panel.
Specifically, the driving signals provided by the display driving system 100 include a second power signal and a second display data signal, and the display panel receives the second power signal and the second display data signal provided by the display driving system 100 and displays an image according to the second power signal and the second display data signal.
In this embodiment, the display device adopts the display driving system 100 as described above, and the display driving system 100 can adjust the target image in accordance with the bending state of the display panel, so that the display effect of the display device is better.
It should be understood by those skilled in the art that the present invention is not limited to the type of the display device, and may be an organic light emitting display device, a thin film transistor liquid crystal display device or other types of flat panel display devices, and the display driving system provided by the embodiment of the present invention may be used as long as the display device needs to adjust an image according to coordinates during application.
In summary, in the display driving system, the driving method thereof and the display device provided by the embodiments of the invention, the data conversion unit is adopted to convert the display data, so that the display driving system can adjust the chromaticity, the brightness and the resolution of the image in accordance with the bending state of the display panel, thereby improving the display effect of the image.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (9)
1. A display driving system, comprising: a display signal processing unit and a data conversion unit; the display signal processing unit is used for receiving an image signal, and generating and outputting a first display data signal according to the image signal; the data conversion unit is connected with the display signal processing unit and used for receiving the first display data signal and performing data conversion on the first display data signal according to the coordinate information of the first display data signal to obtain a second display data signal;
the process of performing data conversion on the first display data signal according to the coordinate information of the first display data signal to obtain a second display data signal includes:
confirming the coordinate information of the first display data signal;
if the coordinate is confirmed to be located in the non-bending area of the display panel, outputting reference data; if the coordinate is confirmed to be located in the bending area of the display panel, outputting adjustment data; and
and performing data integration on the reference data or the adjustment data to obtain a second display data signal.
2. The display driving system according to claim 1, wherein the display signal processing unit includes: a signal converter and a signal processor; the signal converter is used for receiving an image signal and performing signal conversion on the image signal; the signal processor is used for receiving a first power supply signal and an image signal after signal conversion, and performing signal processing on the first power supply signal and the image signal to obtain a first display data signal and a second power supply signal required by the work of the display panel.
3. The display driving system according to claim 1, wherein the data conversion unit comprises: the device comprises a data decoding unit, a data processing unit and a data integration unit; the data decoding unit is used for receiving the first display data signal, performing data decoding on the first display data signal, and sending coordinate information obtained by decoding to the data processing unit; the data processing unit is used for outputting the reference data or the adjusting data according to the coordinate information; the data integration unit is used for receiving the reference data or the adjustment data and performing data integration on the reference data or the adjustment data to obtain a second display data signal.
4. A display driving method, comprising:
an image signal is provided to the image processing device,
performing signal processing on the image signal to obtain a first display data signal;
performing data decoding on the first display data signal to obtain coordinate information of the first display data signal; and
performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal;
wherein the process of performing data conversion on the first display data signal according to the coordinate information to obtain a second display data signal comprises:
confirming the coordinate information of the first display data signal;
if the coordinate is confirmed to be located in the non-bending area of the display panel, outputting reference data; if the coordinate is confirmed to be located in the bending area of the display panel, outputting adjustment data; and
and performing data integration on the reference data or the adjustment data to obtain a second display data signal.
5. The display driving method according to claim 4, further comprising, after data integrating the reference data or the adjustment data to obtain a second display data signal: comparing the second display data signal with the first display data signal;
if the comparison result does not meet the display requirement, performing data integration again until the comparison result meets the display requirement; and if the comparison result meets the display requirement, outputting a second display data signal.
6. The display driving method according to claim 4, further comprising, while supplying the image signal: providing a first power supply signal, and performing voltage conversion on the first power supply signal to obtain a second power supply signal.
7. The display driving method according to claim 4, further comprising, before the signal processing the image signal, after the supplying the image signal: and performing signal conversion on the image signal.
8. A display device, comprising: a display driving system and a display panel as claimed in any one of claims 1 to 3, the display driving system being connected to the display panel for providing driving signals to the display panel.
9. The display device according to claim 8, wherein the driving signal includes a second power signal and a second display data signal, and the display panel receives the second power signal and the second display data signal provided by the display driving system and performs image display according to the second power signal and the second display data signal.
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| CN201710014018.0A CN108288448B (en) | 2017-01-09 | 2017-01-09 | Display driving system, driving method thereof and display device |
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| CN109036271B (en) * | 2018-08-17 | 2020-06-12 | 武汉华星光电半导体显示技术有限公司 | Method and device for correcting color cast of curved screen bending area, storage medium and terminal |
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| CN101346753A (en) * | 2005-12-28 | 2009-01-14 | Nec显示器解决方案株式会社 | Image display apparatus |
| CN102272821A (en) * | 2009-04-28 | 2011-12-07 | 夏普株式会社 | Display apparatus |
| CN105047085A (en) * | 2014-04-18 | 2015-11-11 | 三星显示有限公司 | Display apparatus and method of controlling the same |
| CN106057159A (en) * | 2016-08-05 | 2016-10-26 | 武汉华星光电技术有限公司 | Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device |
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| CN101346753A (en) * | 2005-12-28 | 2009-01-14 | Nec显示器解决方案株式会社 | Image display apparatus |
| CN102272821A (en) * | 2009-04-28 | 2011-12-07 | 夏普株式会社 | Display apparatus |
| CN105047085A (en) * | 2014-04-18 | 2015-11-11 | 三星显示有限公司 | Display apparatus and method of controlling the same |
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