What are the solutions to drive high-resolution screens?

wangerxian

What are the solutions to drive high-resolution screens? [Copy link]

 

At present, the company has a project to drive 800x600, which is driven by a single-chip microcomputer. Now we want to drive a higher resolution screen, about 1280x720. I think it is very difficult to drive a single-chip microcomputer. If Linux is used, it can only be developed with QT, and the interface is HDMI. Is there a 12-inch HDMI screen with touch? It seems difficult to match, and my ideas are quite confused now.

tagetage

Is there a 12-inch HDMI screen with touch? ---Yes, there is. But if you want a big screen, you need a system. Linux, Android or even Windows, how convenient it is to develop software.

tagetage

You can directly buy ready-made hardware and develop the software yourself, which is very worry-free. You can search for "touch screen all-in-one computer" and select the hardware, system and appearance you need. There are many choices.

秦天qintian0303

High resolution is indeed not suitable for single-chip microcomputers, and the main frequency of single-chip microcomputers is not high.

秦天qintian0303

Isn't the serial port screen okay? For example, DWIN's

wangerxian

tagetage posted on 2023-2-23 11:12 Is there a 12-inch HDMI screen with touch? ---Yes. But to use a large screen, you need an operating system. Linux or Android or even Windows ...

If we only develop software, there will be nothing for us in electronics...

wangerxian

Qintianqintian0303 posted on 2023-2-23 21:44 Is the serial port screen not working? For example, Devin's

The serial port screen doesn't seem to be enough.

wangerxian

tagetage posted on 2023-2-23 11:39 You can directly buy ready-made hardware and develop the software yourself, which is very worry-free. You search for "touch screen all-in-one machine" and select the one you need...

There are already plans to use tablet computers, but the effect seems to be not very good.

tagetage

wangerxian posted on 2023-2-24 09:09 The serial port screen doesn’t seem to be enough.

The serial port screen is actually very limited and not very easy to use.

wangerxian

tagetage posted on 2023-2-24 10:46 The serial port screen is actually very limited and not very easy to use.

Yes, it’s a bit hard to cope with some high-refresh interfaces.

秦天qintian0303

wangerxian posted on 2023-2-24 11:18 Yes, for some high refresh interfaces, it is a bit difficult to cope with.

It would be troublesome if there were too many interfaces.

wangerxian

Qintianqintian0303 posted on 2023-2-24 11:56 It is really troublesome if there are too many interfaces

It is not a big deal if there are too many interfaces, but the CPU usage will be high if the interface data changes a lot and there are curves, graphics and other controls.

suncat

The higher the screen resolution, the higher the hardware requirements. If the MCU itself is powerful, I don't think it matters. I think a 32-bit MCU with a main frequency of hundreds of MHz should be able to do the job. In addition to high resolution, don't you also need to consider what it is used for? If it is just to display static pictures, the hardware requirements are not high and it can be competent; if it is to display video animations or visual analysis, the hardware requirements are definitely high.

wangerxian

suncat posted on 2023-3-17 10:06 The higher the screen resolution, the higher the hardware requirements. If the microcontroller itself is powerful, I don't think it matters. A 32-bit single-chip microcomputer with a main frequency of hundreds of megahertz, ...

The interface has dynamic effects, and the microcontroller does not seem to be able to handle it well.

suncat

wangerxian posted on 2023-3-17 10:24 The interface has dynamic effects, and the microcontroller does not seem to be competent.

Actually, you mean that 8-bit microcontrollers are not capable of such work? Now, some 32-bit microcontrollers can reach a main frequency of more than 200 MHz, which should be able to do such work. Think about it, in the past, the main frequency of 486 computers was only 33MHz.

wangerxian

suncat posted on 2023-3-17 11:54 In fact, you mean that 8-bit microcontrollers are not capable of such work? Now some 32-bit microcontrollers can reach a main frequency of more than 200 MHz, which should be...

The current phenomenon is that the screen driver is not working.

wangerxian

suncat posted on 2023-3-17 11:54 In fact, you mean that 8-bit microcontrollers are not capable of such work? Now some 32-bit microcontrollers can reach a main frequency of more than 200 MHz, which should be...

32-bit maximum frequency 480MHz