CN105578105A - HDMI version switching method and display device - Google Patents
HDMI version switching method and display device Download PDFInfo
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- CN105578105A CN105578105A CN201510974020.3A CN201510974020A CN105578105A CN 105578105 A CN105578105 A CN 105578105A CN 201510974020 A CN201510974020 A CN 201510974020A CN 105578105 A CN105578105 A CN 105578105A
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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
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
Abstract
The invention discloses an HDMI version switching method. The method comprises the steps of after receiving a video signal input by an external input device through an HDMI, detecting whether the signal parameters of the video signal are consistent with the signal parameters of the configured HDMI version EDID information or not by means of a display device; on the condition that the signal parameters of the video signal are not consistent with the signal parameters of the configured HDMI version EDID information, switching the HDMI version by means of the display device. The invention also discloses the display device. In this way, when the display device detects the abnormal condition of the video signal, the display device switches to the HDMI version. The condition that a user must manually switch the HDMI version after finding out the abnormal condition of the image display can be avoided. The user experience is effectively improved.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of HDMI version-switching method and display device.
Background technology
HDMI (High Definition Multimedia Interface) (HighDefinitionMultimediaInterface, HDMI) be a kind of digitized video/audio interface technology, be the tailored version digital interface of applicable image transmission, it can simultaneously transmit audio signals and signal of video signal.
The version of HDMI has a lot, at present, mainly use HDMI2.0 version on the market, but, if external input device support is HDMI1.4 version, display device allocation optimum is HDMI2.0 version, and so display device is after the vision signal receiving external input device transmission, will occur the situation that picture display is abnormal.
For the problems referred to above, existing settling mode is user when finding that picture display is abnormal, is selected, to realize the switching of HDMI1.4 version and HDMI2.0 version by the shift knob of the setting on display interface.
But find that the abnormal also manual operation of picture display realizes the switching of HDMI1.4 version and HDMI2.0 version by user, require higher to the specialty of user, cannot be applicable to public use, applicability is low, poor user experience.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of HDMI version-switching method and display device, is intended to solve the problem being found to show the low and poor user experience of applicability that switching that abnormal problem and manual operation realize HDMI version brings by user.
For achieving the above object, a kind of HDMI version-switching method provided by the invention, described method comprises:
After receiving the vision signal that external input device inputted by HDMI, whether the signal parameter that display device detects described vision signal is consistent with the signal parameter in the extending display identification data EDID information of the HDMI version configured;
If the signal parameter in the EDID information of the signal parameter of described vision signal and the described HDMI version configured is inconsistent, then described display device switches HDMI version.
Preferably, described signal parameter comprises time sequence information, or comprises time sequence information and signal type, or comprises aspect ratio information, or comprises aspect ratio information and signal type.
Preferably, described display device switches HDMI version, comprising:
Utilize the EDID information of the HDMI version configured described in the replacement of the EDID information of the HDMI version read;
Simulate the hot plug action of described HDMI.
Preferably, the hot plug action of the described HDMI of described simulation comprises:
The hot plug hot_plug pin of HDMI described in pullup or pulldown.
Preferably, described display device also comprises before switching HDMI version:
If the signal parameter in the EDID information of the signal parameter of described vision signal and the described HDMI version configured is inconsistent, then show HDMI version switch prompting information;
If receive the confirmation switching command, then continue to perform the step that described display device switches HDMI version.
For achieving the above object, the present invention also provides a kind of display device, and described display device comprises:
Detection module, for after receiving the vision signal that external input device inputted by HDMI (High Definition Multimedia Interface) HDMI, whether the signal parameter detecting described vision signal is consistent with the signal parameter in the extending display identification data EDID information of the HDMI version configured;
Handover module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, then switches HDMI version.
Preferably, described signal parameter comprises time sequence information, or comprises time sequence information and signal type, or comprises depth-width ratio information, or comprises depth-width ratio information and signal type.
Preferably, described handover module comprises:
Replacement module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, utilizes the EDID information of the HDMI version configured described in the replacement of the EDID information of the HDMI version read;
Analog module, for simulating the hot plug action of described HDMI.
Preferably, described analog module specifically for:
The hot plug hot_plug pin of HDMI described in pullup or pulldown.
Preferably, described display device also comprises:
Display module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, then shows HDMI version switch prompting information;
Trigger module, if for receiving the confirmation switching command, then triggers described handover module.
The invention provides a kind of HDMI version-switching method, after receiving the vision signal that external equipment inputted by HDMI, the signal parameter that display device detects this vision signal whether with the extending display identification data (ExtendedDisplayIdentificationData of the HDMI version configured, EDID) signal parameter in information is consistent, if the signal parameter of this vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device switches HDMI version.By being detected this vision signal when receiving vision signal by display device, and signal parameter in the signal parameter of this vision signal and the EDID signal of the HDMI version to have configured inconsistent time, switch HDMI version, make it possible to the exception of vision signal be detected by display device and switch HDMI version by display device, and do not need user after the display of discovery picture is abnormal, manually operate switching HDMI version, applicability is high, effectively improves Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of HDMI version-switching method in first embodiment of the invention;
Fig. 2 is the schematic flow sheet of the refinement step of the step 102 display device switching HDMI version of Fig. 1 of the present invention;
Fig. 3 is the schematic flow sheet of HDMI version-switching method in second embodiment of the invention;
Fig. 4 is the high-level schematic functional block diagram of display device in third embodiment of the invention;
Fig. 5 is the refinement high-level schematic functional block diagram of handover module 402 in Fig. 4;
Fig. 6 is the schematic diagram of the functional module of display device in fourth embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of HDMI version-switching method, after receiving the vision signal that external equipment inputted by HDMI, the signal parameter that display device detects this vision signal whether with the extending display identification data (ExtendedDisplayIdentificationData of the HDMI version configured, EDID) signal parameter in information is consistent, if the signal parameter of this vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device switches HDMI version.By being detected this vision signal when receiving vision signal by display device, and signal parameter in the signal parameter of this vision signal and the EDID signal of the HDMI version to have configured inconsistent time, switch HDMI version, make it possible to the exception of vision signal be detected by display device and switch HDMI version by display device, and do not need user after the display of discovery picture is abnormal, manually operate switching HDMI version, applicability is high, effectively improves Consumer's Experience.
Refer to Fig. 1, be the schematic flow sheet of HDMI version-switching method in first embodiment of the invention, comprise:
Step 101, after receiving the vision signal that external input device inputted by HDMI, whether the signal parameter that display device detects vision signal is consistent with the signal parameter in the EDID information of the HDMI version configured;
In embodiments of the present invention, external input device is connected with display device by HDMI, and vision signal can be sent to display device by external input device, is shown by display device, wherein, display device has configured the EDID information of HDMI version and this HDMI version.
Wherein, EDID is a kind of VESA standard data format, comprise the parameter about display device and performance thereof, comprise the character string of supplier information, display name and sequence number, maximum image size, color setting, factory default sequential, basic sequential, standard time sequence, in detail sequential and other growth daties.
Wherein, display device after receiving the vision signal that external input device inputted by HDMI, by whether consistent with the signal parameter in the EDID information of the HDMI version configured for the signal parameter detecting this vision signal.
If the signal parameter of step 102 vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device switches HDMI version.
In embodiments of the present invention, if display device determines that the signal parameter of vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device will switch HDMI version.
Such as, if HDMI version comprises HDMI1.4 version and HDMI2.0 version in display device, switching HDMI version refers to and the HDMI1.4 version configured is switched to HDMI2.0 version, or the HDMI2.0 version configured is switched to HDMI1.4 version.
In embodiments of the present invention, after receiving the vision signal that external equipment inputted by HDMI, whether the signal parameter that display device detects this vision signal is consistent with the signal parameter in the EDID information of the HDMI version configured, if the signal parameter of this vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device switches HDMI version, make it possible to the exception being detected to find vision signal by display device to vision signal, and HDMI version can be switched by display device, and do not need user after the display of discovery picture is abnormal, manually operate switching HDMI version, applicability is good and effectively improve Consumer's Experience.
In the embodiment shown in fig. 1, signal parameter can be time sequence information, and this time sequence information comprises resolution and frame per second, and namely described in Fig. 1, step 101 is specifically as follows:
After receiving the vision signal that external input device inputted by HDMI, whether the time sequence information that display device detects vision signal is consistent with the time sequence information in the EDID information of the HDMI version configured.
Wherein, time sequence information is comprised in the detailed sequential in the EDID information of the HDMI version configured.
It should be noted that, because time sequence information comprises resolution and frame per second, time sequence information then in the time sequence information of vision signal and the EDID information of the HDMI version configured is consistent to be specially: the resolution of vision signal is consistent with the resolution in the EDID information of the HDMI version configured, and the frame per second of vision signal is consistent with the frame per second in the EDID information of the HDMI version configured.And except the consistent situation of foregoing description, other are inconsistent situation.
In embodiments of the present invention, whether display device is consistent with the time sequence information in the EDID information of the HDMI version configured by the time sequence information detecting the vision signal received, and in the case of inconsistencies, display device switches HDMI version, make it possible to by the exception of display device identification vision signal and the switching completing HDMI version, and do not need user after discovery picture is abnormal manually operation switch HDMI version, applicability is good and effectively improve Consumer's Experience.
Further, signal parameter is except comprising above-mentioned time sequence information, signal type can also be comprised, this signal type is used for when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, and determines that whether vision signal is abnormal further.
Concrete, display device is when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, and whether the signal type in detection signal parameter is consistent with the signal type in the EDID information of the HDMI version configured.
If detect, the signal type in signal parameter is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is normal signal, do not need the switching carrying out HDMI version.
If detect, the signal type in signal parameter is inconsistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is abnormal signal, display device will switch HDMI version.
In embodiments of the present invention, when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, signal type is utilized further to detect vision signal, effectively can improve the accuracy rate of video signal detection, improve Consumer's Experience further.
Or signal parameter in the embodiment shown in fig. 1 can be depth-width ratio information, display device can obtain the depth-width ratio information of vision signal from the vision signal received, and namely described in Fig. 1, step 101 is specifically as follows:
After receiving the vision signal that external input device inputted by HDMI, whether the depth-width ratio information that display device detects vision signal is consistent with the depth-width ratio information in the EDID information of the HDMI version configured.
Wherein, comprise depth-width ratio information in the EDID information of the HDMI version configured, such as: if configured HDMI2.0 version, then the depth-width ratio information in its EDID information is 21:9.
In embodiments of the present invention, whether the depth-width ratio information that display device can detect the vision signal received is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, if inconsistent, then represent that the vision signal received is abnormal signal, display device switches HDMI version, make it possible to by the exception of display device identification vision signal and the switching completing HDMI version, and do not need user after discovery picture is abnormal manually operation switch HDMI version, applicability is good and effectively improve Consumer's Experience.
Further, signal parameter is except comprising above-mentioned depth-width ratio information, signal type can also be comprised, this signal is consistent with the depth-width ratio information in the EDID information of the HDMI version configured for the depth-width ratio information in signal parameter vision signal being detected, determine that whether vision signal is abnormal further.
Concrete, the depth-width ratio information of display device in signal parameter vision signal being detected is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, whether the signal type detected in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured.
If detect, the signal type in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is normal signal, do not need the switching carrying out HDMI version.
If detect, the signal type in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is abnormal signal, display device will switch HDMI version.
In embodiments of the present invention, depth-width ratio information in signal parameter vision signal being detected is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, by utilizing the signal type in signal parameter, vision signal is further detected, effectively can improve the accuracy rate of video signal detection, improve Consumer's Experience further.
Refer to Fig. 2, for the present invention's middle step 102 display device embodiment illustrated in fig. 1 switches the schematic flow sheet of the refinement step of HDMI version, comprising:
The EDID information of the HDMI version that step 201, utilization read replaces the EDID information of the HDMI version configured;
In embodiments of the present invention, the EDID information of at least two HDMI versions has been stored in the memory of display device, display device can read the EDID information of another HDMI version from this memory, and replaces the EDID information of the HDMI version configured by the EDID information read.
Concrete, when only storing two HDMI versions in memory, display device is by the EDID information of another the HDMI version of reading except the HDMI version configured.Such as: in memory, store the EDID information of HDMI1.4 version and the EDID information of HDMI2.0 version, if configured the EDID information of HDMI1.4 version, when needs switch HDMI version, display device reads the EDID information of HDMI2.0 version from memory.
When storing at least two HDMI versions in memory, display device is by each HDMI version of storing from memory, search the HDMI version that signal parameter in EDID information is consistent with the signal parameter of the vision signal received, and will the EDID information of the HDMI version found be read.
After the EDID information reading HDMI version, the EDID information of the HDMI version of reading is replaced the EDID information of the HDMI version configured by display device.Such as, if the HDMI version configured is HDMI2.0 version, and read the EDID information of HDMI1.4 version, then utilize the EDID information of the HDMI1.4 version of reading to replace the EDID information of HDMI2.0 version.
The hot plug action of step 202, simulation HDMI.
In embodiments of the present invention, display device is after completing the replacing it of EDID information, and the hot plug action of simulation HDMI, to complete the switching of HDMI version.
Wherein, the hot plug action of simulation HDMI can be: pullup or pulldown hot plug (hot_plug) pin, by changing the level of hot plug pin to complete hot plug.
Wherein, specifically perform pull-up or drop-down be that pull-up resistor or pull down resistor are relevant with the actual resistance connected of hot plug pin.
It should be noted that, display device simulation HDMI hot plug action object also bag trigger external input equipment again obtain the EDID information of the HDMI version that display device has configured, make external input device correctly can resolve the EDID information got, and send vision signal according to resolving the EDID information obtained, the vision signal that display device is received is normal signal, and display frame can not be caused abnormal.
In embodiments of the present invention, display device can read the EDID information of other HDMI versions except configuring HDMI version from memory, the EDID information of the HDMI version read is utilized to replace the EDID information of the HDMI version configured, and simulate the hot plug action of HDMI, to realize the switching of HDMI version, make display device effectively can complete the switching of HDMI version, and do not need the switching being realized HDMI version by user's manual operation, applicability is strong, and Consumer's Experience is better.
Refer to Fig. 3, be the schematic flow sheet that HDMI version in second embodiment of the invention switches, comprise:
Step 301, after receiving the vision signal that external input device inputted by HDMI, whether the signal parameter that display device detects vision signal is consistent with the signal parameter in the EDID information of the HDMI version configured;
The content that step 101 in first embodiment shown in step 301 to Fig. 1 describes is similar, does not repeat herein.
If the signal parameter of step 301 vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, display HDMI version switch prompting information;
In embodiments of the present invention, if detect, the signal parameter of vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then display device display HDMI version switch prompting information, allows user be confirmed whether to carry out the switching of HDMI version.
If step 302 receives the confirmation switching command, then display device switches HDMI version.
In embodiments of the present invention, display device is after display HDMI version switch prompting information, user can determine whether to carry out the switching of HDMI version by remote controller or other control appliances that can control display device, if display device receives the confirmation switching command, then display device switches the step of HDMI version, to complete the switching of HDMI version.
Wherein, if display device receives cancellation switching command, then display device will not perform the switching of HDMI version, and within the time period pre-set, if display device detects that the signal parameter of the vision signal received is inconsistent with the signal parameter in the EDID information of the HDMI version configured, display device does not perform the switching of HDMI version.
Wherein, display device is after display HDMI version switch prompting information, determine switching command if do not receive within the time period pre-set or cancel switching command, then process according to the default behavior of display device, this default behavior can be the switching performing HDMI version, also can be the switching not performing HDMI version.
In embodiments of the present invention, display device is detecting that the signal parameter of vision signal is inconsistent with the signal parameter of the EDID information of the HDMI version configured, then show HDMI version switch prompting information, if and receive the confirmation switching command, then switch HDMI version, make user can know the switching of the HDMI version that display device performs, strengthen the sense of participation of user, and owing to not needing user to find, picture display exception and manual operation switch HDMI version, effectively can improve Consumer's Experience.
Refer to Fig. 4, be the high-level schematic functional block diagram of display device in third embodiment of the invention, comprise:
Detection module 401, for after receiving the vision signal that external input device inputted by HDMI (High Definition Multimedia Interface) HDMI, whether the signal parameter detecting vision signal is consistent with the signal parameter in the extending display identification data EDID information of the HDMI version configured;
In embodiments of the present invention, external input device is connected with display device by HDMI, and vision signal can be sent to display device by external input device, is shown by display device, wherein, display device has configured the EDID information of HDMI version and this HDMI version.
Wherein, EDID is a kind of VESA standard data format, comprise the parameter about display device and performance thereof, comprise the character string of supplier information, display name and sequence number, maximum image size, color setting, factory default sequential, basic sequential, standard time sequence, in detail sequential and other growth daties.
Wherein, display device is after receiving the vision signal that external input device inputted by HDMI, and whether detection module 401 is by consistent with the signal parameter in the EDID information of the HDMI version configured for the signal parameter detecting this vision signal.
Handover module 402, if inconsistent for the signal parameter in the signal parameter of vision signal and the EDID information of the HDMI version configured, then switches HDMI version.
In embodiments of the present invention, if display device determines that the signal parameter of vision signal is inconsistent with the signal parameter in the EDID information of the HDMI version configured, then handover module 402 will switch HDMI version.
Such as, if HDMI version comprises HDMI1.4 version and HDMI2.0 version in display device, switching HDMI version refers to and the HDMI1.4 version configured is switched to HDMI2.0 version, or the HDMI2.0 version configured is switched to HDMI1.4 version.
In embodiments of the present invention, display device is after receiving the vision signal that external input device inputted by HDMI, and whether the signal parameter that detection module 401 detects vision signal is consistent with the signal parameter in the EDID information of the HDMI version configured; When detecting that the signal parameter of vision signal and the signal parameter in the EDID information of the HDMI version configured are inconsistent, handover module 402 will switch HDMI version.The signal parameter of vision signal is detected by display device, make it possible to exception vision signal being detected by display device, avoid finding by user the problem that the abnormal viewing effect brought of the picture of display device is bad, and display device is when determining that vision signal is abnormal, HDMI version will be switched, make not need the manual operation of user can realize the switching of HDMI version, applicability is strong, improves Consumer's Experience.
In the embodiment shown in fig. 4, signal parameter can be time sequence information, and this time sequence information comprises resolution and frame per second, above-mentioned detection module 401 specifically for:
After receiving the vision signal that external input device inputted by HDMI, whether the time sequence information detecting vision signal is consistent with the time sequence information in the EDID information of the HDMI version configured.
Wherein, time sequence information is comprised in the detailed sequential in the EDID information of the HDMI version configured.
It should be noted that, because time sequence information comprises resolution and frame per second, time sequence information then in the time sequence information of vision signal and the EDID information of the HDMI version configured is consistent to be specially: the resolution of vision signal is consistent with the resolution in the EDID information of the HDMI version configured, and the frame per second of vision signal is consistent with the frame per second in the EDID information of the HDMI version configured.And except the consistent situation of foregoing description, other are inconsistent situation.
In embodiments of the present invention, whether the time sequence information that detection module 401 detects the vision signal received is consistent with the time sequence information in the EDID information of the HDMI version configured, and in the case of inconsistencies, handover module 402 switches HDMI version, make it possible to by the exception of display device identification vision signal and the switching completing HDMI version, and do not need user after discovery picture is abnormal manually operation switch HDMI version, applicability is good and effectively improve Consumer's Experience.
Further, signal parameter is except comprising above-mentioned time sequence information, signal type can also be comprised, this signal type is used for when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, and determines that whether vision signal is abnormal further.
Namely the detection module in embodiment illustrated in fig. 4 is also for when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, and whether the signal type continued in detection signal parameter is consistent with the signal type in the EDID information of the HDMI version configured.
If detect, the signal type in signal parameter is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is normal signal, do not need the switching carrying out HDMI version.
If detect, the signal type in signal parameter is inconsistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is abnormal signal, handover module 402 will switch HDMI version.
In embodiments of the present invention, when detecting that the time sequence information in signal parameter is consistent with the time sequence information in the EDID information of the HDMI version configured, detection module 401 also will utilize signal type further to detect vision signal, effectively can improve the accuracy rate of video signal detection, improve Consumer's Experience further.
Or signal parameter in the embodiment shown in fig. 4 can be depth-width ratio information, display device can obtain the depth-width ratio information of vision signal from the vision signal received, the detection module 401 in namely embodiment illustrated in fig. 4 specifically for:
After receiving the vision signal that external input device inputted by HDMI, whether the depth-width ratio information detecting vision signal is consistent with the depth-width ratio information in the EDID information of the HDMI version configured.
Wherein, comprise depth-width ratio information in the EDID information of the HDMI version configured, such as: if configured HDMI2.0 version, then the depth-width ratio information in its EDID information is 21:9.
In embodiments of the present invention, whether the depth-width ratio information that detection module 401 detects the vision signal received is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, if inconsistent, then represent that the vision signal received is abnormal signal, switching device 402 switches HDMI version, make it possible to by the exception of display device identification vision signal and the switching completing HDMI version, and do not need user after discovery picture is abnormal manually operation switch HDMI version, applicability is good and effectively improve Consumer's Experience.
Further, signal parameter is except comprising above-mentioned depth-width ratio information, signal type can also be comprised, this signal is consistent with the depth-width ratio information in the EDID information of the HDMI version configured for the depth-width ratio information in signal parameter vision signal being detected, determine that whether vision signal is abnormal further.
Concrete, the depth-width ratio information of detection module 401 in signal parameter vision signal being detected is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, whether the signal type continuing to detect in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured.
If detect, the signal type in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is normal signal, do not need the switching carrying out HDMI version.
If detect, the signal type in the signal parameter of vision signal is consistent with the signal type in the EDID information of the HDMI version configured, then determine that this vision signal is abnormal signal, handover module 402 will switch HDMI version.
In embodiments of the present invention, depth-width ratio information in signal parameter vision signal being detected is consistent with the depth-width ratio information in the EDID information of the HDMI version configured, detection module 402 further detects by the signal type in signal parameter vision signal, effectively can improve the accuracy rate of video signal detection, improve Consumer's Experience further.
Referring to Fig. 5, is the schematic diagram of the refinement functional module of handover module 402 in Fig. 4 of the present invention, concrete:
Handover module 402 comprises:
Replacement module 501, if inconsistent for the signal parameter in the signal parameter of vision signal and the EDID information of the HDMI version configured, utilizes the EDID information of the HDMI version read to replace the EDID information of the HDMI version configured;
In embodiments of the present invention, the EDID information of at least two HDMI versions has been stored in the memory of display device, display device can read the EDID information of HDMI version from this memory, and replaces the EDID information of the HDMI version configured by the EDID information read.
Concrete, when only storing two HDMI versions in memory, display device is by the EDID information of another the HDMI version of reading except the HDMI version configured.Such as: in memory, store the EDID information of HDMI1.4 version and the EDID information of HDMI2.0 version, if configured the EDID information of HDMI1.4 version, when needs switch HDMI version, display device reads the EDID information of HDMI2.0 version from memory.
When storing at least two HDMI versions in memory, display device is by each HDMI version of storing from memory, search the HDMI version that signal parameter in EDID information is consistent with the signal parameter of the vision signal received, and will the EDID information of the HDMI version found be read.
After the EDID information reading HDMI version, the EDID information of the HDMI version of reading is replaced the EDID information of the HDMI version configured by display device.Such as, if the HDMI version configured is HDMI2.0 version, and read the EDID information of HDMI1.4 version, then utilize the EDID information of the HDMI1.4 version of reading to replace the EDID information of HDMI2.0 version.
Analog module 502, for simulating the hot plug action of HDMI.
In embodiments of the present invention, after replacement module 501 completes replacing it of EDID information, analog module 502 by simulation HDMI hot plug action, to complete the switching of HDMI version.
Wherein, analog module 502 is specifically same as the hot plug pin of pullup or pulldown HDMI, is realized the hot plug of HDMI by the level changing hot plug pin.
Wherein, specifically perform pull-up or drop-down be that pull-up resistor or pull down resistor are relevant with the resistance that hot plug pin connects.
Wherein, analog module 502 simulate the hot plug action of HDMI object also bag trigger external input equipment again obtain the EDID information of the HDMI version that display device has configured, make external input device correctly can resolve the EDID information got, and send vision signal according to resolving the EDID information obtained, the vision signal that display device is received is normal signal, and display frame can not be caused abnormal.
In embodiments of the present invention, display device can read the EDID information of other HDMI versions except configuring HDMI version from memory, the EDID information of the HDMI version read is utilized to replace the EDID information of the HDMI version configured, and simulate the hot plug action of HDMI, to realize the switching of HDMI version, make display device effectively can complete the switching of HDMI version, and do not need the switching being realized HDMI version by user's manual operation, applicability is strong, and Consumer's Experience is better.
Refer to Fig. 6, be the high-level schematic functional block diagram of fourth embodiment of the invention, comprise: the detection module 401 as shown in Figure 4 in embodiment and handover module 402, and similar with the content of middle description embodiment illustrated in fig. 4, do not repeat herein.
Display module 601, if inconsistent for the signal parameter in the signal parameter of vision signal and the EDID information of the HDMI version configured, then shows HDMI version switch prompting information;
Trigger module 602, if for receiving the confirmation switching command, then triggers handover module 401.
In embodiments of the present invention, display module 601 in display device is after display HDMI version switch prompting information, user can determine whether to carry out the switching of HDMI version by remote controller or other control appliances that can control display device, if display device receives the confirmation switching command, then trigger module 602 triggers handover module 401, to complete the switching of HDMI version.
Wherein, if display device receives cancellation switching command, then display device will not perform the switching of HDMI version, and within the time period pre-set, if display device detects that the signal parameter of the vision signal received is inconsistent with the signal parameter in the EDID information of the HDMI version configured, display device does not perform the switching of HDMI version.
Wherein, display device is after display HDMI version switch prompting information, determine switching command if do not receive within the time period pre-set or cancel switching command, then process according to the default behavior of display device, this default behavior can be the switching performing HDMI version, also can be the switching not performing HDMI version.
In embodiments of the present invention, display device is before switching HDMI version, HDMI version switch prompting information will be shown, if and receive the confirmation switching command, then continue to perform the step switching HDMI version, make user can know the switching of the HDMI version that display device performs, strengthen the sense of participation of user, and owing to not needing user to find, picture display exception and manual operation switch HDMI version, effectively can improve Consumer's Experience.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, air conditioner, or the network equipment etc.) perform the method for each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a HDMI (High Definition Multimedia Interface) HDMI version-switching method, is characterized in that, described method comprises:
After receiving the vision signal that external input device inputted by HDMI, whether the signal parameter that display device detects described vision signal is consistent with the signal parameter in the extending display identification data EDID information of the HDMI version configured;
If the signal parameter in the EDID information of the signal parameter of described vision signal and the described HDMI version configured is inconsistent, then described display device switches HDMI version.
2. method according to claim 1, is characterized in that, described signal parameter comprises time sequence information, or comprises time sequence information and signal type, or comprises aspect ratio information, or comprises aspect ratio information and signal type.
3. method according to claim 1 and 2, is characterized in that, described display device switches HDMI version, comprising:
Utilize the EDID information of the HDMI version configured described in the replacement of the EDID information of the HDMI version read;
Simulate the hot plug action of described HDMI.
4. method according to claim 3, is characterized in that, the hot plug action of the described HDMI of described simulation comprises:
The hot plug hot_plug pin of HDMI described in pullup or pulldown.
5. method according to claim 1, is characterized in that, described display device also comprises before switching HDMI version:
Display HDMI version switch prompting information;
If receive the confirmation switching command, then continue to perform the step that described display device switches HDMI version.
6. a display device, is characterized in that, described display device comprises:
Detection module, for after receiving the vision signal that external input device inputted by HDMI (High Definition Multimedia Interface) HDMI, whether the signal parameter detecting described vision signal is consistent with the signal parameter in the extending display identification data EDID information of the HDMI version configured;
Handover module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, then switches HDMI version.
7. display device according to claim 6, is characterized in that, described signal parameter comprises time sequence information, or comprises time sequence information and signal type, or comprises depth-width ratio information, or comprises depth-width ratio information and signal type.
8. the display device according to claim 6 or 7, is characterized in that, described handover module comprises:
Replacement module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, utilizes the EDID information of the HDMI version configured described in the replacement of the EDID information of the HDMI version read;
Analog module, for simulating the hot plug action of described HDMI.
9. display device according to claim 8, is characterized in that, described analog module specifically for:
The hot plug hot_plug pin of HDMI described in pullup or pulldown.
10. display device according to claim 6, is characterized in that, described display device also comprises:
Display module, if inconsistent for the signal parameter in the signal parameter of described vision signal and the EDID information of the described HDMI version configured, then shows HDMI version switch prompting information;
Trigger module, if for receiving the confirmation switching command, then triggers described handover module.
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| CN201510974020.3A CN105578105B (en) | 2015-12-22 | 2015-12-22 | HDMI version-switching method and display equipment |
| PCT/CN2016/084558 WO2017107388A1 (en) | 2015-12-22 | 2016-06-02 | Hdmi version switching method and display device |
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| CN105578105B (en) | 2019-03-12 |
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