CN218825063U

CN218825063U - LCM structure for segment code screen or dot matrix screen

Info

Publication number: CN218825063U
Application number: CN202222694072.3U
Authority: CN
Inventors: 胡红斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-07
Anticipated expiration: 2032-10-12

Abstract

The utility model provides a LCM structure for section sign indicating number screen or dot matrix screen, includes LCD, light guide plate and PCB board, be provided with the LED lamp on the PCB board, LCD meets with the light guide plate, and LCD is through the LCD pin cartridge and the welding of being connected with its electricity at the PCB board, and the light guide plate covers on the LED lamp. The bottom of the light guide plate is provided with a first assembly groove, the LED lamp is arranged on the PCB in a protruding mode, and the LED lamp is located in the first assembly groove. The PCB board in the utility model is provided with the LED lamp, the LCD is connected with the light guide plate, the LCD is inserted and welded on the PCB board through the LCD pin which is electrically connected with the LCD, and the light guide plate covers the LED lamp; the LCD and the light guide plate are combined into a whole, and then the whole is inserted and welded on the PCB through the LCD pins, so that the assembly efficiency is improved, and the assembly quality is also improved. The utility model has the characteristics of assembly efficiency is high, assembly quality is good.

Description

LCM structure for segment code screen or dot matrix screen

Technical Field

The utility model relates to a LCM structure for section sign indicating number screen or dot matrix screen.

Background

Chinese patent document No. CN 203858826U discloses a fixing structure of a backlight module for vehicle display in 2014 03/31, which includes a PCB circuit board and a backlight module disposed above the PCB circuit board, the backlight module includes a bracket and a pressing frame covering the outside of the bracket, and a first elastic component and a second elastic component respectively used for limiting the installation positions of the backlight module and the display screen are formed at the top edge of the bracket receiving groove. The fixing structure has more parts and lower assembly efficiency, and therefore needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an easy LCM structure that is used for section code screen or dot matrix screen of operating to overcome the weak point among the prior art.

The LCM structure for the segment code screen or the dot matrix screen comprises an LCD, a light guide plate and a PCB, and is structurally characterized in that an LED lamp is arranged on the PCB, the LCD is connected with the light guide plate, the LCD is inserted and welded on the PCB through an LCD pin electrically connected with the LCD pin, and the light guide plate covers the LED lamp.

Furthermore, the bottom of light guide plate is provided with first assembly recess, and the convex setting of LED lamp is on the PCB board, and the LED lamp is located first assembly recess.

Further, a second assembly groove is formed in the PCB, and the LED lamp is located in the second assembly groove and located below the light guide plate.

Further, be provided with the third pilot hole on the PCB board, the LED lamp inlays to be established in the third pilot hole and is located the below of light guide plate.

Furthermore, the LCD is connected with the light guide plate through the adhesive layer to form an integral structure.

Further, the LED lamp is located on one side of the light guide plate.

Further, the light guide plate is in press-connection with the PCB.

Further, the LED lamp is in a sheet shape or a granular shape.

The PCB board in the utility model is provided with the LED lamp, the LCD is connected with the light guide plate, the LCD is inserted and welded on the PCB board through the LCD pin which is electrically connected with the LCD, and the light guide plate covers the LED lamp; the LCD and the light guide plate are combined into a whole, and then the whole is inserted and welded on the PCB through the LCD pins by the insertion welding machine or the component inserter, so that the automatic flow line production is realized, the assembly efficiency is improved, and the assembly quality is also improved.

The utility model discloses make up LED lamp on the PCB board with the light guide plate to constitute a complete light guide plate, LED and LCD's display module, through the drive arrangement on the PCBA at last, light the LED lamp, drive LCD forms complete display effect.

The utility model discloses mainly be applicable to the section code or the dot matrix liquid crystal display of TN, HTN, STN, VA material.

To sum up, the utility model has the characteristics of easy operation, assembly efficiency height, assembly quality are good.

Drawings

Fig. 1 is a schematic view of a partially cut structure according to an embodiment of the present invention.

Fig. 2 is a left partial sectional structure view of fig. 1.

Fig. 3 is a schematic view of the overlooking structure after the PCB board is removed.

In the figure: the LED lamp comprises a Liquid Crystal Display (LCD) 1, a light guide plate 2, a Printed Circuit Board (PCB) 3, an LED lamp 4 and an LCD pin 5.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-3, an LCM structure for a segment code screen or a dot matrix screen comprises an LCD1, a light guide plate 2 and a PCB 3, wherein the PCB 3 is provided with an LED lamp 4, the LCD1 is connected with the light guide plate 2, the LCD1 is inserted and welded on the PCB 3 through an LCD pin 5 electrically connected with the LCD1, and the light guide plate 2 covers the LED lamp 4.

In this embodiment, the bottom of the light guide plate 2 is provided with a first assembly groove, the LED lamp 4 is convexly disposed on the PCB 3, and the LED lamp 4 is located in the first assembly groove. Or, a second assembly groove is formed in the PCB 3, and the LED lamp 4 is located in the second assembly groove and below the light guide plate 2. Or, a third assembly hole is formed in the PCB 3, and the LED lamp 4 is embedded in the third assembly hole and located below the light guide plate 2.

In this embodiment, the LCD1 is connected to the light guide plate 2 by an adhesive layer to form an integral structure. In practice, the LCD1 and the light guide plate 2 may be first bonded into a whole by a double-sided adhesive tape or an adhesive layer coated on the surface thereof, and then the whole is placed in a tray adapted thereto, that is, another tray patent previously filed by the present applicant; then, the tray loaded with a plurality of whole bodies is conveyed to an automatic flow production line, and the parts are taken out through a plug-in welding machine or a plug-in machine according to requirements and finally are plugged and welded on a PCB (printed circuit board) through LCD pins, so that automatic unmanned production is realized, the assembly efficiency can be greatly improved, and the assembly quality can be ensured.

The LED lamp 4 is located at one side of the light guide plate 2. Wherein, the LED lamp 4 is arranged on the left side, the right side, the upper side or the lower side of the light guide plate 2.

The light guide plate 2 is pressed on the PCB 3.

The LED lamp 4 is in a sheet shape or a granular shape.

The assembling process of the LCD and the LCD pin 5 electrically connected with the LCD belongs to the prior art, and during specific operation, the LCD pin 5 is clamped on the LCD to realize electrical connection, then UV curing glue is coated, and finally the UV curing glue is cured after being irradiated by a UV lamp, so that the LCD and the LCD pin 5 are integrated into a whole.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the present invention, and the terms "first" and "second" are used only for descriptive purposes and are not intended to indicate or imply relative importance or to imply the number of technical features being referred to.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a LCM structure for section sign indicating number screen or dot matrix screen, includes LCD (1), light guide plate (2) and PCB board (3), characterized by be provided with LED lamp (4) on PCB board (3), LCD (1) meets with light guide plate (2), and LCD (1) are through LCD pin (5) cartridge and welding rather than the electricity connection at PCB board (3), and light guide plate (2) cover on LED lamp (4).

2. The LCM structure for segment code screens or dot matrix screens according to claim 1, wherein the bottom of the light guide plate (2) is provided with a first assembly groove, the LED lamp (4) is convexly arranged on the PCB (3), and the LED lamp (4) is positioned in the first assembly groove.

3. The LCM structure for segment code screens or dot matrix screens according to claim 1, wherein a second assembly groove is arranged on the PCB (3), and the LED lamp (4) is positioned in the second assembly groove and below the light guide plate (2).

4. The LCM structure for segment code screens or dot matrix screens as claimed in claim 1, wherein the PCB (3) is provided with a third assembly hole, and the LED lamp (4) is embedded in the third assembly hole and positioned below the light guide plate (2).

5. The LCM structure for segment code screens or dot matrix screens as claimed in any one of claims 1 to 4, wherein the LCD (1) is connected with the light guide plate (2) by an adhesive layer to form an integral structure.

6. The LCM structure for segment code or dot matrix screens according to claim 5, wherein the LED lamp (4) is located at one side of the light guide plate (2).

7. The LCM structure for segment code screen or dot matrix screen according to claim 5, wherein the light guide plate (2) is press-connected to the PCB (3).

8. The LCM structure for segment code or dot matrix screens according to claim 5, characterized in that the LED lamps (4) are in the form of sheets or granules.