CN209843998U

CN209843998U - Go up screen line mistake plug protection architecture

Info

Publication number: CN209843998U
Application number: CN201920963859.0U
Authority: CN
Inventors: 张博
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2019-12-24
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a go up screen line and misplug and pull out protection architecture, including the LCD screen and set up the TCON board on the LCD screen, be equipped with the PMIC on the TCON board, the both sides about the lower extreme are equipped with TCON and serve the screen socket, and TCON serves the screen socket and serves the screen socket through last screen line and OC and link to each other, and the PMIC enable signal that TCON board PMIC periphery produced is shielded the socket at all and is made a round trip to walk and link to the PIN of the messenger of PMIC behind the line. Since the PMIC is a key device on the TCON board and is a power supply base of the TCON board, each power supply for enabling other modules of the TCON board and the liquid crystal display to normally work is mainly generated. If the PMIC does not work, the TCON board will not supply power to the liquid crystal screen, and the PMIC is guaranteed to work normally, the TCON board periphery is required to provide an enabling signal for the PMIC, and the screen-loading line is plugged and pulled mistakenly at the moment to cause the short circuit of the PIN foot of the screen-loading PIN, so that the liquid crystal screen is not damaged.

Description

Go up screen line mistake plug protection architecture

Technical Field

The utility model relates to a LCD TV shows technical field, specific saying so, a go up screen line and misplug and pull out protection architecture.

Background

The TCON board is an important circuit module of the lcd tv, and is responsible for correctly displaying the image data processed by the tv core on the lcd screen and providing the lcd screen with a power supply required for its normal operation. The TCON board is connected with the liquid crystal screen through a screen-loading line and a screen-loading socket.

In the production and manufacturing process of the liquid crystal display television, a television complete machine manufacturer assembles the liquid crystal display and the TCON board, and then plugs the upper screen wire into the upper screen socket, namely, the power-on point screen of the TCON board is carried out. In actual production operation, the situation that the upper screen power supply or the signal is short-circuited and even the liquid crystal screen is damaged due to misoperation such as poor plugging of the upper screen wire or hot plugging and the like often occurs. The cost of the liquid crystal screen is often high, and even if the probability of wrong plugging is not high, the whole factory is also greatly lost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a go up screen line mistake plug protection architecture for the short circuit appears in last screen power or the signal that the well screen line grafting is bad or electrified hot plug maloperation leads to among the solution prior art, can cause the problem that the LCD screen damaged even.

The utility model discloses a following technical scheme solves above-mentioned problem:

the utility model provides a go up screen line mistake plug protection architecture, includes the LCD screen and sets up the TCON board on the LCD screen, be equipped with PMIC on the TCON board, the both sides of lower extreme left and right sides are equipped with TCON and end the screen socket, and TCON ends the screen socket and holds the screen socket through last screen line and OC and link to each other, and PMIC enable signal that TCON board PMIC periphery produced links to each other after all last screen sockets make a round trip to walk the line and link to PMIC's enable PIN. Since the PMIC is a key device on the TCON board and is a power supply base of the TCON board, each power supply for enabling other modules of the TCON board and the liquid crystal display to normally work is mainly generated. If the PMIC is out of work, then the TCON board will not supply power for the LCD screen, and guarantee that the PMIC normally works, need TCON board periphery to provide enabling signal EN PIN for the PMIC, it leads to screen-mounted PIN foot short circuit to appear misplugging in the last screen line this moment, then can lead to PMIC messenger's PIN foot to ground short circuit, the PMIC can not work, then can not lead to the LCD screen to damage, based on this, can guarantee when the wrong plug appears in which direction in the last screen line, all can lead to PMIC enabling signal and GND short circuit, lead to the PMIC out of work, let the TCON board not supply power for the LCD screen. The purpose of avoiding the liquid crystal screen from being damaged is achieved.

Preferably, the TCON-side on-screen socket and the OC-side on-screen socket interface define PMIC enable signals and are defined at the two extreme left and right ends of the on-screen socket.

Preferably, in the definition of the TCON terminal on-screen socket and the OC terminal on-screen socket, the PIN in which the PMIC enable signal is located is defined as a GND signal.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model discloses a circuit design and the last screen socket interface definition of PMIC module on the synchronous optimization TCON board, guarantee under the condition that the wrong plug of screen line appears, circuit system possesses sufficient resistance, avoid appearing the condition that the LCD screen damaged, can guarantee when the wrong plug appears in which direction in the last screen line, all can lead to PMIC enable signal and GND short circuit, it is out of work to lead to PMIC, let the TCON board not give the LCD screen power supply, reach and avoid the purpose that the damage appears in the LCD screen.

Drawings

Fig. 1 is a schematic diagram of the anti-misplug structure and the routing of the enable signal of the present invention;

fig. 2 is a schematic diagram of the definition of the PIN of the upper screen socket of the present invention;

in the drawings, the reference numbers: 1-TCON board; 2-PMIC; 3-screen line; 4-OC end upper screen socket; 5-TCON end upper screen socket.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Example 1:

with reference to fig. 1, a screen line mis-plugging protection structure includes a liquid crystal display and a TCON board disposed on the liquid crystal display, where the TCON board is provided with a PMIC, and left and right sides of a lower end of the TCON board are provided with TCON terminal screen sockets, the TCON terminal screen sockets are connected to OC terminal screen sockets through screen lines, PMIC enable signals generated at the periphery of the PMIC of the TCON board are connected to enable PINs of the PMIC after all the screen sockets are wired back and forth; the TCON end on-screen socket and the OC end on-screen socket interface define PMIC enable signals and are defined at the two ends of the left and right of the on-screen socket, and in the TCON end on-screen socket and the OC end on-screen socket definitions, the PIN in which the PMIC enable signal is located and the adjacent PIN are defined as GND signals, as shown in fig. 2, 60 PINs are taken as an example, and the definitions are shown in the figure, wherein PIN1/PIN60 is EN PIN, and PIN2/PIN59 is GND PIN.

Since the PMIC is a key device on the TCON board and is a power supply base of the TCON board, each power supply for enabling other modules of the TCON board and the liquid crystal display to normally work is mainly generated. If the PMIC is out of work, then the TCON board will not give the LCD screen power supply, and will guarantee that the PMIC normally works, need TCON board periphery to provide enable signal EN PIN for the PMIC, it leads to screen-on PIN foot short circuit to appear misplug in the screen-on line this moment, then can lead to PMIC messenger to enable PIN foot short circuit to ground, the PMIC can not work, then can not lead to the LCD screen to damage, the utility model discloses a circuit design and the last screen socket interface definition of PMIC module on the synchronous optimization TCON board guarantee under the condition that screen-on line misplug appears, circuit system possesses sufficient resistance, avoid appearing the condition that the LCD screen damaged, can guarantee when the screen-on line appears the misplug in which direction, all can lead to PMIC enable signal and GND short circuit, lead to the PMIC out of work, let the TCON board not supply power for the LCD screen, reach the mesh of avoiding the LCD screen to appear damaging.

Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are merely preferred embodiments of the present invention, it is to be understood that the present invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.

Claims

1. The utility model provides a go up screen line mistake plug protection architecture, includes LCD screen and the TCON board of setting on the LCD screen, its characterized in that: the TCON board is provided with a PMIC, the left side and the right side of the lower end of the TCON board are provided with TCON end screen-up sockets, the TCON end screen-up sockets are connected with the OC end screen-up sockets through screen-up lines, PMIC enabling signals generated on the periphery of the PMIC of the TCON board are connected to an enabling PIN of the PMIC after all screen-up sockets are wired back and forth.

2. The upper screen wire misplug protection architecture of claim 1, characterized in that: and the TCON terminal screen-up socket and the OC terminal screen-up socket interface define PMIC enabling signals and define the two ends of the left and right of the screen-up socket.

3. The upper screen wire misplug protection architecture of claim 2, characterized in that: in TCON end screen socket and OC end screen socket definition, the PIN foot that PMIC enable signal belongs to, adjacent PIN foot definition is GND signal.