How to connect the LCD cable and the driver board?

Generally speaking, the cable of the computer display screen has a high toughness, and it will not break easily, but if it is a very early machine, it has been used for several years, and its LCD screen does not know how many times it has been opened and closed, and the use method is improper, and the LCD screen may be broken if it is frequently moved back and forth in the same direction, it is impossible to buy the same model of cable. In fact, there are two kinds of cables in the computer, one is the cable from the screen to the graphics card part, and the other is the cable from the screen control circuit to the TFT panel, both of which play the role of transmitting display content, the difference is that the cable from the screen to the graphics card part is to transmit the signal of the entire screen display, and after arriving at the control circuit, these signals are divided into each pixel to display the content to be transmitted to the TFT panel. If there is a problem with the cables in any of these places, the display will not work properly.

Therefore, the best way is to manually dismantle it, find the cable and purchase the corresponding cable model to replace it, or send it directly to the computer maintenance point through soldering and soldering.

LCD screen.

It is based on the liquid crystal material as the basic component, the liquid crystal material is filled between the two parallel plates, and the internal molecules of the liquid crystal material are changed by voltage, so as to achieve the purpose of shading and light transmission to display different shades and staggered images, and as long as the ternary color filter layer is added between the two plates, the color image can be displayed. The low power consumption of LCD screens makes them popular with engineers for electronic devices that use batteries.

Hello! Usually there will be pins marked on the board: 1 or 30

Then look at the line, there will generally be a mark on the line, you look carefully (color dot or triangle symbol), mark the first foot.

Both signs have been found, and the correspondence is fine.

Hello Dear 1Glue it to the driver board with ACF. During the assembly of the screen, a flat cable was removed by the overalls.

Considering the high cost of pressing the screen, it is intended to be soldered by hand (soldering iron 936, sonotrode knife shaped). 2.Start applying BGA solder paste and adjust the 936 soldering iron to within 250 degrees.

3.Clamp the flat cable with two panel driver plates removed from the scrap screen. Start tinning (the quality of tinning directly affects the success rate).

Continue to increase the temperature of the 936 soldering iron and tin the driver board (the quality of tin plating directly affects the success rate). 4.When the critical moment comes, align the cable with the positioning holes on both sides of the drive pin baffle.

Set the temperature of the 936 soldering iron to the highest sock height. The sonotrode is pressed diagonally against the cable. Do not drag the sonotrode quickly.

Instead, use a soldering head to stay on the cable for three to five seconds.

Connected to a discrete graphics card. The signal line of the display only needs to be numbered into the Sakura Kai seat. The onboard graphics card is integrated with the motherboard, it has the same function output interface as the independent graphics card, and the display signal cable only needs to be seated.

A signal line on the display: according to the above plug, because the plug is made according to the standard, the spine plug and the socket are universal. The hardware geometry of each mode interface is different, and it cannot be inserted without matching.

Graphics card classification. Discrete graphics cards are further divided into built-in discrete graphics cards and external graphics cards. Usually the discrete graphics cards we see are built-in discrete graphics cards, plugged into the AGP or PCI-E slots of the motherboard.

There are two kinds of built-in discrete graphics cards, pure discrete graphics cards and hybrid graphics cards, the former is needless to say, it is an ordinary graphics card, and the latter is that the graphics card has its own video memory and at the same time can call the system memory through the system bus to increase the video memory capacity, typical Turbo Cache technology developed by NVIDIA and Hyper Memeroy technology of ATI can do this.

The above content reference: Encyclopedia-Dulu Liangli graphics card.

Summary. It is necessary to determine the end of the cable, whether it is the end of the LCD panel or the end of the cable plug is not in good contact, if the wire at the end of the panel falls off, there is no way, the factory uses a heat sealing machine to heat press.

Welding: Welding, also known as "welding" or welding, neuterization, is a processing technology and connection method in which two or more materials (of the same or different species) are heated or pressurized, or both are used together to produce atomic bonding between two workpieces. Welding has a wide range of applications and can be used for both metals and non-metals.

During the soldering process, the workpiece and solder melt to form a molten area, and the connection between the materials is formed when the molten pool cools and solidifies. In this process, pressure is often also applied. There are many types of energy** used in welding, including gas flames, arcs, lasers, electron beams, friction, and ultrasonics.

Before the end of the 19th century, the only welding process was the forged welding of metal, which had been practiced by blacksmiths for hundreds of years. The earliest modern welding techniques appeared at the end of the 19th century, first with arc welding and oxy-gas welding, and later with resistance welding.

How is the LCD screen connected to the logic board cable?

Be patient, I'll get back to you soon, don't worry.

Weld it. It is necessary to determine the end of the cable, whether it is the end of the LCD panel or the end of the cable plug is not in good contact, if the wire at the end of the panel falls off, there is no way, the factory uses a heat sealing machine to heat press. Welding:

Welding, also known as "welding" or welding, is a processing technology and connection method in which two or more materials (the same or dissimilar) are heated or pressurized, or both are used together to produce atomic bonding between two workpieces. Welding has a wide range of applications and can be used for both metals and non-metals. During the soldering process, the workpiece and solder melt to form a molten area, and the connection between the materials is formed when the molten pool cools and solidifies.

In this process, pressure is often also applied. There are many types of welding energy**, including gas flames, arcs, lasers, electron beams, triboblizer bridges, and ultrasonics. Before the end of the 19th century, the only welding process was the forged welding of metal, which had been practiced by blacksmiths for hundreds of years.

The earliest modern welding techniques appeared at the end of the 19th century, first with arc welding and oxy-gas welding, and later with resistance can be veneh.

That's the method, how about you see?

The power board 5V does not care, then GND and 12V correspond to the pins of the driver board, and the last two are SW to connect BLON DIW to ADJ

1.The connection of the key cables of the display driver board generally follows the following basic principles.

Explanation: The key wires on the monitor driver board are used to connect the keys or touch buttons on the monitor panel, so that users can press these buttons to perform various operations, such as adjusting brightness, contrast, input source, etc. The connection of the key wires will usually vary depending on the design of the display and the manufacturer's specifications, but the following basic principles are generally followed:

1.Identification and correspondence: Each key wire on the driver board should have a corresponding identification, for example"menu"、"power"Wait. These logos are usually displayed in the form of text or symbols on the driver board to help identify the function of each key.

2.*Connection interface: The key wires on the monitor driver board are usually connected to the buttons on the panel using connection interfaces such as pin headers, female headers, plugs, etc. Make sure that each keywire is properly plugged into the appropriate connector to avoid incorrect connections.

3.Wiring Order: Determine the correct wiring order for the key wires according to the documentation or guidelines provided by the monitor manufacturer. There will usually be a number or color** to indicate the order of each key line.

4.Fixing and insulation: Make sure the keywire plug is firmly connected and not easy to loosen. In addition, the keywires can be secured with appropriate insulation or straps to prevent wear and tear or short circuits.

5.Test & Confirmation: After completing the connection of the key wires, it is important to test to ensure that each key is working properly. Try pressing each button to confirm that they trigger the corresponding function on the display.

Extended content: Although the connection principle of the button cable is relatively fixed, the specific connection method may change due to the differences in different display brands and models. Therefore, it is best to refer to the technical documentation, user manual, or support resources provided by the display manufacturer when making keywire connections to ensure that the keywires are connected correctly and to avoid possible errors.

In conclusion, the connection of the key cable is one of the key steps to ensure that the keys of the monitor are working properly. Following the above principles, the correct keyline connection according to the specific situation of the display can ensure that users can easily operate and control various functions of the display.