CN219716106U - Independent display and integrated display switching circuit and terminal equipment - Google Patents
Independent display and integrated display switching circuit and terminal equipment Download PDFInfo
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Abstract
The utility model discloses a single display and integrated display switching circuit and terminal equipment, wherein the single display and integrated display switching circuit comprises a switching module, a processing module, a single display module and a display module, the processing module comprises an integrated display module, wherein the switching module is respectively connected with the single display module, the processing module and the display module, the switching module is used for switching the integrated display module and the single display module which are included in the processing module according to a switching signal, the display module is used for displaying a switching result, the use of a default display card is flexibly changed by adopting the switching module, the switching between different display cards can be carried out through one jump cap, and the switching between different types of display cards is judged by the on-off state of the display module, so that the use and the switching of different display cards by a user are improved, and the switching efficiency of the display cards is improved.
Description
Technical Field
The utility model relates to the technical field of circuits, in particular to a single display and integrated display switching circuit and terminal equipment.
Background
Along with the continuous development of science and technology, the use of computer equipment is also increasing, but are independent display cards on some computer equipment, are integrated display cards on some computer equipment, that is to say, integrated display cards are integrated on a CPU (central processing unit), and are generally independent display by default, if the integrated display and the independent display are to be switched first, manual switching is required, the switching steps are complicated, and the switching efficiency is lower.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a single display and integrated display switching circuit and terminal equipment.
The utility model provides a single display and set display switching circuit, which comprises a switching module, a processing module, a single display module and a display module, wherein the processing module comprises the set display module, the switching module is respectively connected with the single display module, the processing module and the display module, the switching module is used for switching the set display module and the single display module which are included in the processing module according to a switching signal, and the display module is used for displaying a switching result.
Optionally, the NOE pin of the switching module is connected to the second end of the first connector, the third end of the first connector is connected to ground through a resistor RM100, and the first end of the first connector is connected through a resistor RO 414.
Optionally, the SEL pin of the switching module is connected to a first end of a resistor RH391, and a second end of the resistor RH391 is connected to ground through an LED lamp.
Optionally, a nineteenth pin of the switching module is connected to a hot plug pin of the unique display module.
Optionally, the twenty-first pin of the switching module is connected to the zx_dp0_hpd pin of the processing module.
Optionally, the display interface mxm_dp0_tx0N/P-mxm_dp0_tx1N/P of the unique display module and the thirty-eighth pin to the thirty-fifth pin of the switching module.
Optionally, the display interfaces zx_dp0_tx0N/P-zx_dp0_tx1N/P of the processing module are respectively connected with twenty-sixth pin to twenty-ninth pin of the switching module.
Optionally, the display module is a CH7511B-BF chip.
Optionally, the switching module is an ASW3642 chip.
In a second aspect, the present utility model further provides a terminal device, including the switching circuit for single display and integrated display in the first aspect.
The utility model provides a single display and integrated display switching circuit and terminal equipment, wherein the single display and integrated display switching circuit comprises a switching module, a processing module, a single display module and a display module, the processing module comprises an integrated display module, wherein the switching module is respectively connected with the single display module, the processing module and the display module, the switching module is used for switching the integrated display module and the single display module which are included in the processing module according to a switching signal, the display module is used for displaying a switching result, the use of a default display card is flexibly changed by adopting the switching module, the switching between different display cards can be carried out through one jump cap, and the switching between different types of display cards is judged by the on-off state of the display module, so that the use and the switching of different display cards by a user are improved, and the switching efficiency of the display cards is improved.
Drawings
FIG. 1 is a schematic diagram of a single display and integrated display switching circuit according to an embodiment of the present utility model;
fig. 2 is a schematic circuit diagram of a switching module according to an embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of a display module according to an embodiment of the utility model;
fig. 4 is a schematic circuit diagram of a display module according to an embodiment of the utility model;
FIG. 5 is a schematic diagram of a control signal according to an embodiment of the present utility model;
fig. 6 is a schematic circuit diagram of a single display module according to an embodiment of the present utility model;
FIG. 7 is a schematic circuit diagram of a processing module according to an embodiment of the present utility model;
fig. 8 is a schematic circuit diagram of a display module according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Noun interpretation:
1. ASW3462: is a 12-channel 1:2 or 2:1 bi-directional multiplexer/demultiplexer. ASW3642 may be powered by a 2.6V to 4.5V power supply, suitable for battery powered applications. The device has a low on-Resistance (RON) and a small I/O capacitance, enabling bandwidths of typically up to 7.5 GHz. The device can provide the high bandwidth required for HDMI and DisplayPort applications. ASW3642 has a power-down mode in which all channels have high impedance (Hi-Z) and power consumption is very low.
2. CH7511B-BF, which can convert the eDP signal to an LVDS output. This feature can be achieved by loading the configuration settings of the EDID and CH7511B of the panel in serial BOOTROM connected to CH 7511B. During system power-up and after performing eDP link training through the AUX channel, CH7511B will sequentially generate LVDS signals according to the panel power-up timing stored in BOOTROM.
3. HDMI is an English abbreviation of (High Definition Multimedia Interface), meaning a high definition multimedia interface, it is a digital video/audio interface technology, can transmit image and audio signals at the same time, the highest data transmission speed is 48Gbps (2.1 edition), the high definition video interface of HDMI is very common at present, the mainstream video card, motherboard, notebook, liquid crystal television, etc. all have HDMI interface at present, it is incomparable that the ordinary VGA display interface, as the telephone line broadband in broadband is the same as optic fibre, the transmission data ability has great difference.
HDMI mainly meets the requirement of high definition video above 1080P, for example, HDMI interfaces are arranged in a main board or a display card, and a computer provided with the main board or the display card is described to support video output above 1080P.
LVDS (Low-Voltage Differential Signaling, low-Voltage differential Signal) is a level standard of a signal transmission mode proposed by U.S. national semiconductors (National Semiconductor, NS, now TI) in 1994, and adopts extremely Low voltage swing high-speed differential transmission data, so that point-to-point or point-to-multipoint connection can be realized, and the LVDS has the advantages of Low power consumption, low bit error rate, low crosstalk, low radiation and the like, and has been widely applied to serial high-speed data communication occasions.
DisplayPort (DP) is a digital display interface developed for transmitting graphics signals. DisplayPort was created in 2006 to replace a very old VGA port. DisplayPort is mainly used to connect different video sources to a display, such as a computer monitor, audio, etc.
The eDP protocol is an extension of the embedded direction architecture and protocol for DP (Display Port) application, so the eDP protocol is fully compatible with the DP protocol. Compared with DVI/HDMI, the eDP has high bandwidth, good integration and simple related product design, and the interface is widely applied to the fields of notebook computers, tablet computers, mobile phones and other integrated display panels and image processors. The eDP interface reduces device complexity, supports the necessary functionality of critical cross-industry applications, and provides performance scalability to support next generation displays with higher color depth, refresh rate, and display resolution. eDP is designed to replace older digital video and audio transmission interfaces such as LVDS, especially on full high definition PHD (1920 x1080 or 1920x 1200) or panels beyond FHD resolution. The eDP has three basic architectures including Main channel (Main Link), auxiliary channel (AUX), and Hot Plug (HPD) for video and audio transmission.
Referring to fig. 1, the present utility model provides a circuit schematic diagram of a single display and integrated display switching circuit, which includes a switching module 101, a processing module 102, a single display module 103 and a display module 104, wherein the processing module includes an integrated display module, the switching module 102 is respectively connected with the single display module, the processing module and the display module, the switching module 101 is configured to switch the integrated display module and the single display module included in the processing module according to a switching signal, and the display module is configured to display a switching result.
The integrated display module integrates the display card into the processing module, namely the CPU, and the single display module is a single display card device.
The automatic use collection of when not receiving the single display shows, and the automatic use of when receiving the single display shows to can realize the free switching between the display card through outside jump cap, also can switch through BIOS is manual, when receiving the single display the signal lamp is bright.
As shown in fig. 2-7, the NOE pin of the switching module is connected to the second terminal of the first connector J17, the third terminal of the first connector J17 is connected to ground through a resistor RM100, and the first terminal of the first connector is connected through a resistor RO 414.
Wherein RM100 is 0Ω.
Optionally, the SEL pin of the switching module is connected to a first end of a resistor RH391, and a second end of the resistor RH391 is connected to ground through an LED lamp.
Optionally, a nineteenth pin of the switching module is connected to a hot plug pin of the single display module.
Optionally, the twenty-first pin of the switching module is connected to the zx_dp0_hpd pin of the processing module.
Optionally, the display interface mxm_dp0_tx0N/P-mxm_dp0_tx1N/P of the unique display module and the thirty-eighth pin to the thirty-fifth pin of the switching module.
Optionally, the display interfaces zx_dp0_tx0N/P-zx_dp0_tx1N/P of the processing module are respectively connected to twenty-sixth pin to twenty-ninth pin of the switching module.
Optionally, the switching module is an ASW3642 chip.
Through ASW3642 chip, there is nimble change to the use of defaulting display card to can jump the cap and carry out the switching between the different display cards, and judge the switching between the display cards through the signal lamp state of turning on and off, thereby improve the user and use and the switching of different display cards.
Specifically, the embodiment of the utility model comprises an electrical element: 0402 1uF 1, 0402.22uF 32, 0402.1 uF 7, 2.0 x 3PIN two groups, MINI-JUMPER two groups, HEADER2 x 15PIN PIN spacing 2mm one group, MOSFET L2N7002LT1G 7.5OHM 60V 115mA two, 0402.7K OHM two, 0402 0OHM 27, 0402 10K OHM 5, 0402 100OHM1, ASW3642LGA42, CH7511B-BF.
In the embodiment of the utility model, the signals received by the ASW6342 are different when the signals are in different levels through the two groups of signals of the SEL and the NOE, so as to output the signals of the integrated display card or the signals of the independent display card.
For example, let NOE be in low level all the time, when 1 and 2pin of J14 are switched on, SEL is high level, then turn on B channel signal, signal lamp is on, output integrated display card DP signal, otherwise SEL is low level, then receive A channel signal, signal lamp is off, output MXM independent display card DP signal.
If the GPIO signal is connected, the GPIO signal can be pulled up to enable the GPIO signal to output the integrated display signal of the B channel, and the signal lamp is turned on. Otherwise, outputting a single display signal of the A channel, and turning off the signal lamp.
The ZX_PCIe address unit ZX_PCIe0N/P-ZX_PCIe7N/P is 18 signal sources, and is the data transmission between the CPU and the MXM independent display card.
mxm_dp0_tx0n/P-mxm_dp0_tx1n/P, and zx_dp0_tx0n/P-zx_dp0_tx1n/P are display signals of MXM independent graphics card and integrated graphics card, respectively.
mxm_dp0_aux_n/P and zx_dp0_aux_n/P are auxiliary interfaces for MXM independent graphics cards and integrated graphics cards, respectively.
If the A channel is opened, the DP0_TX0N/P-DP0_TX1N/P is the display signal of the MXM independent display card, and if the B channel is opened, the display signal of the integrated display card is the display signal.
As shown in FIG. 8, the display module is a CH7511B-BF chip. The display signal is transmitted to the CH7511B-BF to be converted into an LVDS signal, thereby displaying a picture on the display screen.
The embodiment of the utility model uses ASW3642 to flexibly change the default display card, so that the free switching of the independent display card and the integrated display card can be realized through the hardware jump cap, the free switching between the display cards can be realized through controlling the GPIO by the BIOS, and the current use of the independent display card or the integrated display card can be judged through the on-off of the signal lamp.
The utility model also provides a terminal device which comprises the single display and integrated display switching circuit.
The utility model provides a single display and integrated display switching circuit and terminal equipment, wherein the single display and integrated display switching circuit comprises a switching module, a processing module, a single display module and a display module, the processing module comprises an integrated display module, wherein the switching module is respectively connected with the single display module, the processing module and the display module, the switching module is used for switching the integrated display module and the single display module which are included in the processing module according to a switching signal, the display module is used for displaying a switching result, the use of a default display card is flexibly changed by adopting the switching module, the switching between different display cards can be carried out through one jump cap, and the switching between different types of display cards is judged by the on-off state of the display module, so that the use and the switching of different display cards by a user are improved, and the switching efficiency of the display cards is improved.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The utility model provides a single display and collection show switching circuit, its characterized in that, single display and collection show switching circuit includes switching module, processing module, single display module and display module, processing module includes collection and shows the module, wherein, switching module respectively with single display module processing module with the display module links to each other, switching module is used for according to the switching signal, to the collection that processing module includes shows the module with single display module switches, the display module is used for showing the switching result, switching module is ASW3642 chip.
2. The single display and integrated display switching circuit of claim 1, wherein the NOE pin of the switching module is connected to a second terminal of a first connector, a third terminal of the first connector is connected to ground through a resistor RM100, and a first terminal of the first connector is connected through a resistor RO 414.
3. The single display and integrated display switching circuit of claim 1, wherein the SEL pin of the switching module is connected to a first end of a resistor RH391, and a second end of the resistor RH391 is connected to ground through an LED lamp.
4. The single display and integrated display switching circuit of claim 1, wherein a nineteenth pin of the switching module is connected to a hot plug pin of the single display module.
5. The single display and integrated display switching circuit of claim 4, wherein a twenty-first pin of the switching module is connected to a zx_dp0_hpd pin of the processing module.
6. The display-to-integrated switching circuit of claim 1, wherein the display interface mxm_dp0_tx0N/P-mxm_dp0_tx1N/P of the display module and the thirty-eighth pin to the thirty-fifth pin of the switching module.
7. The single display and integrated display switching circuit according to claim 1, wherein the display interfaces zx_dp0_tx0N/P-zx_dp0_tx1N/P of the processing module are respectively connected to twenty-sixth pin to twenty-ninth pin of the switching module.
8. The single display and integrated display switching circuit of claim 1, wherein the display module is a CH7511B-BF chip.
9. A terminal device comprising a single display and integrated display switching circuit as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222925573.8U CN219716106U (en) | 2022-11-03 | 2022-11-03 | Independent display and integrated display switching circuit and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222925573.8U CN219716106U (en) | 2022-11-03 | 2022-11-03 | Independent display and integrated display switching circuit and terminal equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117112335A (en) * | 2023-10-24 | 2023-11-24 | 北京比格凯特科技有限公司 | A prompt circuit for display card is connected |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117112335A (en) * | 2023-10-24 | 2023-11-24 | 北京比格凯特科技有限公司 | A prompt circuit for display card is connected |
| CN117112335B (en) * | 2023-10-24 | 2024-01-23 | 北京比格凯特科技有限公司 | A prompt circuit for display card is connected |
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