WO2015109744A1 - 接口转换电路、显示面板驱动方法和显示装置 - Google Patents
接口转换电路、显示面板驱动方法和显示装置 Download PDFInfo
- Publication number
- WO2015109744A1 WO2015109744A1 PCT/CN2014/080508 CN2014080508W WO2015109744A1 WO 2015109744 A1 WO2015109744 A1 WO 2015109744A1 CN 2014080508 W CN2014080508 W CN 2014080508W WO 2015109744 A1 WO2015109744 A1 WO 2015109744A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- interface
- edp
- lvds
- data format
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
-
- 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
-
- 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
-
- 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
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/10—Use of a protocol of communication by packets in interfaces along the display data pipeline
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/14—Use of low voltage differential signaling [LVDS] for display data communication
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/20—Details of the management of multiple sources of image data
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/005—Adapting incoming signals to the display format of the display terminal
Definitions
- Interface conversion circuit display panel driving method, and display device
- the present disclosure relates to an interface conversion circuit, a display panel driving method, and a display device. Background technique
- Embodiments of the present disclosure provide an interface conversion circuit, a display panel driving method, and a display device for implementing an ultra high definition image display by using at least an LVDS interface in combination with a UHD display device.
- the interface conversion circuit includes: a low voltage differential signal LVDS interface and a data format conversion module; the LVDS interface is configured to receive an LVDS signal from an LVDS signal source, and send the LVDS signal to the data format conversion module; The data format conversion module is configured to convert the received LVDS signal into a digital video interface eDP signal.
- the data format conversion module includes at least: a first data format converter and a second data format converter; the first data format converter is, for example, for converting the LVDS signal into a transistor- Transistor logic level TTL signal; the second data format converter is for example: converting the TTL signal into an eDP signal.
- the method further includes: a digital video eDP interface, configured to receive an eDP signal from the eDP signal source, and to transmit the eDP signal.
- a digital video eDP interface configured to receive an eDP signal from the eDP signal source, and to transmit the eDP signal.
- the switch module further includes a first input end connected to the data format conversion module, a second input end connected to the eDP interface, and an output end connected to the timing controller;
- the switch module is configured to control an eDP signal from the eDP interface according to a control signal or An eDP signal from the data format conversion module is output to the timing controller.
- the method further includes: a controller connected to the switch module, and a control interface connected to the controller; the controller is configured to control the control unit when receiving the first control signal from the control interface
- the switch module outputs an eDP signal from the data format conversion module, and when receiving the second control signal from the control interface, controls the switch module to output an eDP signal from the eDP interface.
- the method further includes: a controller connected to the switch module, the first input end of the controller is connected to the LVDS interface, and the second input end of the controller is connected to the eDP interface;
- the controller is configured to, when receiving the first control signal from the LVDS interface, control the switch module to output an eDP signal from the data format conversion module, and when receiving the second control signal from the eDP interface, control The switch module outputs an eDP signal from an eDP interface.
- An embodiment of the present disclosure provides a display panel driving method, including:
- the timing controller When receiving the LVDS signal, converting the LVDS signal into the eDP signal, and transmitting the eDP signal to a timing controller; the timing controller processes the eDP signal, and processes the processed eDP signal Output to the display panel.
- converting the LVDS signal to the eDP signal is, for example, converting the LVDS signal to a TTL signal and converting the TTL signal to the eDP signal.
- An embodiment of the present disclosure provides a display device including at least an interface conversion circuit and a display panel including a timing controller, the interface conversion circuit being an interface conversion circuit of any of the above modes.
- Embodiments of the present disclosure provide an interface conversion circuit, a display panel driving method, and a display device. It is used to implement an LVDS interface combined with a UHD display device for ultra high definition image display.
- the interface conversion circuit includes at least a low voltage differential signal LVDS interface and a data format conversion module; the LVDS interface is configured to receive an LVDS signal from an LVDS signal source, and send the LVDS signal to the data format conversion module;
- the data format conversion module is configured to convert the received LVDS signal into a digital video interface eDP signal, and realize an LVDS interface combined with a UHD display device to realize ultra high definition image display.
- FIG. 1 is a schematic structural diagram of an interface conversion circuit according to an embodiment of the present disclosure
- FIG. 2 is a schematic structural diagram of a data format conversion module according to an embodiment of the present disclosure
- 3 is a schematic structural diagram of an interface conversion circuit according to an embodiment of the present disclosure
- FIG. 4 is a third schematic structural diagram of an interface conversion circuit according to an embodiment of the present disclosure
- FIG. 5 is a fourth schematic structural diagram of an interface conversion circuit according to an embodiment of the present disclosure.
- FIG. 6 is a fifth schematic structural diagram of an interface conversion circuit according to an embodiment of the present disclosure. detailed description
- Embodiments of the present disclosure provide an interface conversion circuit, a display panel driving method, and a display device for implementing an ultra high definition image display by using at least an LVDS interface in combination with a UHD display device.
- the interface conversion circuit includes: a low voltage differential signal LVDS interface and a data format conversion module; the LVDS interface is configured to receive an LVDS signal from an LVDS signal source, and send the LVDS signal to the data format conversion module; The data format conversion module is configured to convert the received LVDS signal into a digital video interface eDP signal. Realize an ultra-high definition image display by combining at least an LVDS interface with a UHD display device.
- the interface conversion circuit further includes: a digital video eDP interface, configured to receive an eDP signal from the eDP signal source, and send the eDP signal to the timing controller.
- a digital video eDP interface configured to receive an eDP signal from the eDP signal source, and send the eDP signal to the timing controller.
- the new Digital Display Interface is a digital interface based on Display Port structure and protocol. It is a new digital audio and video interface defined by the Video Electronics Association (VESA) to replace the traditional analog video interface. (VGA), Digital Video Interface (DVI), and internal interface between system and panel (LVDS interface). Its wide bandwidth, support for high-definition and ultra-high-definition resolution, has great advantages in high-definition display, more and more related modules have been applied to FHD and higher resolution display modules.
- VESA Video Electronics Association
- VGA Video Electronics Association
- DVI Digital Video Interface
- LVDS interface internal interface between system and panel
- an interface conversion circuit includes: a low voltage differential signal LVDS interface 1, a data format conversion module 2, and an LVDS interface 1 for receiving an LVDS signal from an LVDS signal source, and the LVDS The signal is sent to the data format conversion module 2; the data format conversion module 2 is configured to convert the LVDS signal into a digital video interface eDP signal.
- the present disclosure converts the LVDS signal into a digital video interface eDP signal by setting a data format conversion module between the timing controller and the LVDS interface, thereby realizing ultra high definition image display through the LVDS interface.
- the ultra high definition display panel of the solution can be configured with a system end with an LVDS interface, which improves the compatibility between the system end and the display panel.
- the data format conversion module 2 is any data format conversion module that can convert an LVDS signal into an eDP signal.
- it may be a data format converter that directly converts the LVDS signal into an eDP signal; or may be a module that converts the LVDS signal into a signal of a preset format and converts the signal of the preset format into an eDP signal.
- the data format conversion module 2 includes: a first data format converter 21 and a second data format converter 22; the first data format converter 21 is used, for example, Converting the LVDS signal into a signal of a preset format; the second data format converter 22 is for example: converting the signal of the preset format into an eDP signal.
- the first data format converter 21 is used, for example, to: convert the LVDS signal into a transistor-transistor logic level signal, that is, convert the 1 ⁇ 08 signal into 1 [0:9], 0[0:9 ],: 6[0:9] signals and corresponding control signals (Control Signals);
- the second data format converter 22 is for example: converting the TTL signals into eDP signals, ie R[0:9], G [0:9], B[0:9] signals and corresponding control signals (Control Signals) are converted into eDP packets and control signals.
- the above embodiment implements the conversion of the LVDS signal to the eDP signal by the first data format converter 21 and the second data format converter 22.
- the interface conversion circuit is connected to the timing controller, and the timing controller is configured to receive the eDP signal sent by the data format conversion module 2, and output the eDP signal to the display panel.
- the timing controller outputs the eDP signal to the display panel.
- the timing controller is a timing controller (eDP) with an eDP interface.
- the display panel is an ultra high definition display panel (UHD display panel).
- an interface conversion circuit provided by an embodiment of the present disclosure further includes: a digital video eDP interface 4, configured to receive an eDP signal from an eDP signal source, and send the eDP signal to a timing controller.
- the eDP signal source is connected to the eDP interface to provide an eDP signal to the display device, or the LVDS signal source is connected to the LVDS interface, and the LVDS signal is converted into an eDP signal by the data format conversion module to achieve super HD image display.
- the interface conversion circuit provided by the embodiment of the present disclosure further includes: a switch module 5, the first input end of the switch module 5 Connected to the data format conversion module, the second input end is connected to the eDP interface, and the output end is connected to the timing controller; the switch module is configured to control an eDP signal from the eDP interface or from a data format according to the control signal Conversion module eDP The signal is output to the timing controller.
- the eDP signal from the data format conversion module or the eDP signal from the eDP interface can be sent to the timing controller at a certain time, and the eDP signal from the data format conversion module and the eDP signal from the eDP interface can be avoided at the same time. A failure sent to the timing controller occurs.
- the switch module can be a single pole double throw switch.
- controller 6 connected to the switch module 5, the controller 6 is configured to: when receiving the first control signal, control the switch module 5 to output an eDP signal from the data format conversion module, and receive Upon reaching the second control signal, the control switch module 5 outputs an eDP signal from the eDP interface.
- the first control signal or the second control signal is output to the controller to inform the controller to output the eDP signal of the corresponding interface to the timing controller.
- the controller controls the switch module to output the eDP signal from the data format conversion module when receiving the high level signal, and the controller controls the switch module to output the eDP signal from the data format conversion module when receiving the low level signal.
- the system side can output the LVDS interface signal and give a high level or low level signal to the controller to control the switch module to output the eDP signal.
- the switch module can be implemented through a control interface.
- the control interface can be a control interface 7 independent of the eDP interface and the LVDS interface, or an interface embedded in the eDP interface and the LVDS interface, as shown in FIG.
- the switch module can also be embedded in the eDP interface and the LVDS interface, that is, the eDP interface and the LVDS interface simultaneously have the function of transmitting control signals.
- the controller 6 is connected to the switch module 5, and the control interface 7 connected to the controller 6;
- the controller 6 is configured to control the switch module 5 to output an eDP signal from the data format conversion module 2 upon receiving the first control signal from the control interface 7, and to control the switch when receiving the second control signal from the control interface 7.
- Module 5 outputs the eDP signal from eDP interface 4.
- the method further includes: a controller 6 connected to the switch module 5, and the first input end of the controller 6 is connected to the LVDS interface 2, The second input of the controller 6 is connected to the eDP interface 4; the controller 6 is configured to control the switch module 5 to output the eDP signal from the data format conversion module 2 upon receiving the first control signal from the LVDS interface 1, upon receiving When the second control signal from the eDP interface 4 is reached, the control is turned on.
- the off module 5 outputs the eDP signal from the eDP interface 4.
- An embodiment of the present disclosure further provides a display device including at least an interface conversion circuit and a display panel including a timing controller, wherein the interface conversion circuit is an interface conversion circuit of any of the modes provided by the above embodiments.
- the display device may be a display device such as a liquid crystal panel, a liquid crystal display, a liquid crystal television, an organic electroluminescence display OLED panel, an OLED display, an OLED television, or an electronic paper.
- An embodiment of the present disclosure further provides a display panel driving method, based on the interface conversion circuit, comprising the steps of: converting a LVDS signal into the eDP signal when receiving an LVDS signal.
- the method further includes: transmitting the eDP signal to a timing controller; the timing controller processes the eDP signal, and outputs the processed eDP signal to the display panel.
- the process of processing the eDP signal by the timing controller is to process the eDP signal into a gray scale voltage signal for driving the pixel to realize image display, which is similar to the known technique and will not be described herein.
- the LVDS signal can reduce electromagnetic interference, the immunity to noise is high, and data transmission through the LVDS interface still accounts for a large proportion.
- converting the LVDS signal into the eDP signal is, for example:
- the LVDS signal is converted to a TTL signal, which is then converted into the eDP signal.
- the eDP signal is sent to the switch module, and the control signal is sent to the controller, and the controller turns on the corresponding data channel of the switch module according to the control signal, so that The eDP signal is transmitted to a timing controller.
- the embodiment of the present disclosure converts an LVDS signal from an LVDS interface into an eDP signal by setting a data format conversion module between the timing controller and the LVDS interface, and the timing controller receives the eDP signal to drive the display panel.
- the timing controller receives the eDP signal to drive the display panel.
- an eDP interface connected to the timing controller is further provided, so that the eDP signal driving display panel realizes ultra-high definition image display, and at the same time realizes multi-interface input function.
- the spirit and scope of the public Thus, it is intended that the present invention cover the modifications and the modifications
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/429,120 US10447964B2 (en) | 2014-01-22 | 2014-06-23 | Interface conversion circuit, display panel driving method and display apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410030869.0A CN103794172B (zh) | 2014-01-22 | 2014-01-22 | 一种接口转换电路、显示面板驱动方法和显示装置 |
| CN201410030869.0 | 2014-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015109744A1 true WO2015109744A1 (zh) | 2015-07-30 |
Family
ID=50669770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2014/080508 Ceased WO2015109744A1 (zh) | 2014-01-22 | 2014-06-23 | 接口转换电路、显示面板驱动方法和显示装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10447964B2 (zh) |
| CN (1) | CN103794172B (zh) |
| WO (1) | WO2015109744A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114979293A (zh) * | 2022-04-24 | 2022-08-30 | 南京东道电子装备技术研究院有限公司 | 一种用于semi协议转换的盒子 |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794172B (zh) | 2014-01-22 | 2016-03-09 | 北京京东方显示技术有限公司 | 一种接口转换电路、显示面板驱动方法和显示装置 |
| KR20160033549A (ko) * | 2014-09-18 | 2016-03-28 | 삼성전자주식회사 | 디스플레이 구동회로, 디스플레이 구동회로의 동작방법 및 시스템 온 칩 |
| CN104966477A (zh) * | 2015-06-29 | 2015-10-07 | 武汉精测电子技术股份有限公司 | Lvds视频信号转换为4lane dp视频信号的方法及系统 |
| CN106027938B (zh) * | 2016-06-16 | 2019-04-05 | 南京大学 | 一种dvi信号转edp信号的系统及信号转换方法 |
| CN106205454A (zh) * | 2016-07-06 | 2016-12-07 | 昀光微电子(上海)有限公司 | 一种硅基微显示器模组 |
| CN109286839B (zh) * | 2018-09-29 | 2021-04-16 | 深圳开立生物医疗科技股份有限公司 | eDP接口驱动方法与FPGA主控芯片 |
| CN109559670A (zh) * | 2018-10-31 | 2019-04-02 | 惠科股份有限公司 | 一种显示面板的数据处理方法和显示装置 |
| CN110032908B (zh) * | 2019-04-23 | 2022-10-21 | 福州符号信息科技有限公司 | 一种支持多种通信协议的条码处理电路及条码识读模组 |
| CN110225267A (zh) * | 2019-06-06 | 2019-09-10 | 深圳市智微智能科技开发有限公司 | 一种支持主板edp和lvds双路输出的电路及方法 |
| CN112904128A (zh) * | 2021-01-26 | 2021-06-04 | 北京京东方显示技术有限公司 | 电磁干扰测试方法及系统 |
| CN113225509B (zh) * | 2021-03-18 | 2023-12-05 | 青岛大学 | 一种将ceds视频格式信号转换成hdmi接口信号的装置及方法 |
| CN113870747B (zh) * | 2021-09-24 | 2023-11-14 | 惠州视维新技术有限公司 | 转接板及点屏系统 |
| CN114297774B (zh) * | 2021-12-08 | 2025-10-24 | 海鹰企业集团有限责任公司 | 一种基于舰壳声呐封闭式数据结构的转换装置及方法 |
| CN117640871B (zh) * | 2023-12-07 | 2024-11-15 | 广东高云半导体科技股份有限公司 | 一种SDI接口至eDP接口的数据转换装置及方法 |
| CN120128265B (zh) * | 2025-05-13 | 2025-08-29 | 上海孛璞半导体技术有限公司 | 一种光模块 |
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| CN114979293A (zh) * | 2022-04-24 | 2022-08-30 | 南京东道电子装备技术研究院有限公司 | 一种用于semi协议转换的盒子 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103794172A (zh) | 2014-05-14 |
| CN103794172B (zh) | 2016-03-09 |
| US10447964B2 (en) | 2019-10-15 |
| US20150381928A1 (en) | 2015-12-31 |
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