CN216017035U - Signal converter - Google Patents

Signal converter Download PDF

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Publication number
CN216017035U
CN216017035U CN202122632726.5U CN202122632726U CN216017035U CN 216017035 U CN216017035 U CN 216017035U CN 202122632726 U CN202122632726 U CN 202122632726U CN 216017035 U CN216017035 U CN 216017035U
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China
Prior art keywords
chip
usb
interface
hdmi
rgb
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CN202122632726.5U
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Chinese (zh)
Inventor
舒伟
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Shenzhen Meizhi Technology Co ltd
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Shenzhen Meizhi Technology Co ltd
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Priority to CN202122632726.5U priority Critical patent/CN216017035U/en
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Abstract

The utility model discloses a signal converter, which comprises an HDMI interface, an RGB-to-HDMI chip, a DDR memory, an FPGA chip, a DP-to-LVDS chip, a second USB interface, a PD charging chip, a first USB-C interface and a key; the FPGA chip is respectively connected with the RGB-to-HDMI chip, the DDR memory, the DP-to-LVDS chip and the key; the HDMI is connected with the RGB-to-HDMI chip; the first USB-C interface is connected with the DP-to-LVDS chip; the second USB interface is connected with the PD charging chip, and the PD charging chip is connected with the first USB-C interface. The utility model discloses can carry out the cell-phone or dull and stereotyped image signal who inserts and export for the display device who inserts after 90 upsets and show.

Description

Signal converter
Technical Field
The utility model belongs to the technical field of signal converter, concretely relates to signal converter.
Background
With the rise of the mobile phone video live broadcast industry, the demand of amplifying and displaying the mobile phone pictures is more and more. The display proportion of the mobile phone picture is naturally different from that of a common liquid crystal display, the former is a vertical picture, the latter is a horizontal picture proportion, if the mobile phone is directly connected to the common display, the display proportion is seriously disordered, and the left side and the right side of the display picture seen by a user have great black edges. At present, a common solution is to connect a mobile phone to a liquid crystal display supporting a 90 ° rotation function, so as to achieve an enlarged display effect relatively coordinated with a mobile phone picture ratio, but the price of the display supporting the 90 ° rotation function is much higher than that of a common display, and more importantly, for most users who have purchased the common display, if the same mobile phone picture can be enlarged and displayed vertically by connecting a signal converter, it is not necessary to purchase a display supporting the rotation function at a high price.
Therefore, it is necessary to develop a new signal converter.
Disclosure of Invention
The utility model aims at providing a signal converter can carry out the cell-phone that inserts and dull and stereotyped image signal and export for the display device who inserts after 90 upsets and show.
The utility model discloses a signal converter, including HDMI interface, RGB change HDMI chip, DDR memory, FPGA chip, DP change LVDS chip, second USB interface, PD charging chip, first USB-C interface and button;
the FPGA chip is respectively connected with the RGB-to-HDMI chip, the DDR memory, the DP-to-LVDS chip and the key;
the HDMI is connected with the RGB-to-HDMI chip;
the first USB-C interface is connected with the DP-to-LVDS chip;
the second USB interface is connected with the PD charging chip, and the PD charging chip is connected with the first USB-C interface.
Optionally, the USB interface device further comprises a first USB-A interface and a USB-HUB chip, wherein the USB-HUB chip is connected with the first USB-C interface, and the first USB-A interface is connected with the USB-HUB chip.
Optionally, the USB interface further comprises a second USB-A interface, and the second USB-A interface is connected with the USB-HUB chip.
Optionally, the FPGA chip is a T20F256I4 chip.
Optionally, the RGB-to-HDMI chip employs an LT8618SX chip.
Optionally, the PD charging chip employs an LDR6282 chip.
The utility model has the advantages of it is following: the utility model discloses can carry out the cell-phone that inserts and dull and stereotyped image signal and export for the display device who inserts after 90 upsets and show to satisfy most users and only need a little small transducer just can easily realize the enlarged perpendicular demonstration of cell-phone picture. Additionally, the utility model discloses still support the USB peripheral hardware and connect, for example keyboard, mouse etc to reach more conveniently reverse control signal source equipment, thereby human-computer interaction better.
Drawings
FIG. 1 is a schematic block diagram of the present embodiment;
in the figure: 1. HDMI interface, 2, RGB changes the HDMI chip, 3, DDR memory, 4, FPGA chip, 5, DP changes LVDS chip, 6, second USB interface, 7, PD charges the chip, 8, first USB-C interface, 9, the button, 10, first USB-A interface, 11, USB-HUB chip, 12, second USB-A interface.
Detailed Description
The following detailed description of the present embodiments is made with reference to the accompanying drawings.
As shown in fig. 1, in this embodiment, a signal converter includes an HDMI interface 1, an RGB to HDMI chip 2, a DDR memory 3, an FPGA chip 4, a DP to LVDS chip 5, a second USB interface 6, a PD charging chip 7, a first USB-C interface 8, and a key 9; the connection relation of the modules is as follows:
the FPGA chip 4 is respectively connected with the RGB-to-HDMI chip 2, the DDR memory 3, the DP-to-LVDS chip 5 and the key 9. The HDMI 1 is connected with the RGB-to-HDMI chip 2. The first USB-C interface 8 is connected to the DP-to-LVDS chip 5. The second USB interface 6 is connected with the PD charging chip 7, and the PD charging chip 7 is connected with the first USB-C interface 8.
In this embodiment, the key 9 is used to turn on or off the 90 ° rotation function.
In this embodiment, when the device is used, the display device is connected to the HDMI interface 1, the mobile phone or the tablet is connected to the first USB-C interface 8, the Displayport signal output by the mobile phone or the tablet is converted by the DP to LVDS chip 5 and then input to the FPGA chip 4, the FPGA chip 4 processes the image data and buffers the image data in the DDR memory 3, and then the RGB to HDMI chip 2 converts the RGB signal into the HDMI signal and outputs the HDMI signal from the HDMI interface 1. If the picture displayed by the display device is not matched with the picture displayed by the mobile phone or the flat panel at the moment, the key 9 is pressed down, the 90-degree rotation function is started, and the FPGA chip 4 carries out 90-degree turnover processing on the image data, so that the problem of serious imbalance of the display scale can be effectively solved.
In this embodiment, the second USB-C interface 6 is used to connect to a power supply, to supply power to the entire signal converter, and to charge the mobile phone.
In this embodiment, the USB-HUB device further includes a first USB-a interface 10, a USB-HUB chip 11, and a second USB-a interface 12, where the USB-HUB chip 11 is connected to the first USB-C interface 8, and the first USB-a interface 10 and the second USB-a interface 12 are respectively connected to the USB-HUB chip 11. The first USB-a interface 10 and the second USB-a interface 12 are used for external connection to other devices, such as: the keyboard, the mouse and the like can conveniently and reversely control the signal source equipment, thereby better realizing human-computer interaction.
In this embodiment, the FPGA chip 4 adopts a T20F256I4 chip to perform effect processing and 90 ° flip on image data. The RGB-to-HDMI chip 2 adopts an LT8618SX chip, and an LT8618SX chip is used for converting RGB to HDMI signals. The PD charging chip 7 adopts an LDR6282 chip, and the LDR6282 chip supplies power to the signal converter and the mobile phone or the tablet accessed to the first USB-C interface 8 through the accessed power supply.

Claims (6)

1. A signal converter, characterized by: the device comprises an HDMI (high-definition multimedia interface) interface (1), an RGB-to-HDMI chip (2), a DDR memory (3), an FPGA chip (4), a DP-to-LVDS chip (5), a second USB interface (6), a PD charging chip (7), a first USB-C interface (8) and a key (9);
the FPGA chip (4) is respectively connected with the RGB-to-HDMI chip (2), the DDR memory (3), the DP-to-LVDS chip (5) and the key (9);
the HDMI (1) is connected with the RGB-to-HDMI chip (2);
the first USB-C interface (8) is connected with the DP-to-LVDS chip (5);
the second USB interface (6) is connected with the PD charging chip (7), and the PD charging chip (7) is connected with the first USB-C interface (8).
2. The signal converter of claim 1, wherein: still include first USB-A interface (10) and USB-HUB chip (11), USB-HUB chip (11) and first USB-C interface (8) are connected, first USB-A interface (10) are connected with USB-HUB chip (11).
3. The signal converter of claim 2, wherein: the USB interface device further comprises a second USB-A interface (12), and the second USB-A interface (12) is connected with the USB-HUB chip (11).
4. A signal converter according to any one of claims 1 to 3, wherein: the FPGA chip (4) adopts a T20F256I4 chip.
5. The signal converter of claim 4, wherein: the RGB-to-HDMI chip (2) adopts an LT8618SX chip.
6. The signal converter of claim 5, wherein: the PD charging chip (7) adopts an LDR6282 chip.
CN202122632726.5U 2021-10-31 2021-10-31 Signal converter Active CN216017035U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122632726.5U CN216017035U (en) 2021-10-31 2021-10-31 Signal converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122632726.5U CN216017035U (en) 2021-10-31 2021-10-31 Signal converter

Publications (1)

Publication Number Publication Date
CN216017035U true CN216017035U (en) 2022-03-11

Family

ID=80526583

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122632726.5U Active CN216017035U (en) 2021-10-31 2021-10-31 Signal converter

Country Status (1)

Country Link
CN (1) CN216017035U (en)

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