阅读说明：本技术 一种异形显示屏的点胶方法 (Dispensing method of special-shaped display screen ) 是由 尹宗兵 罗俊 骆志锋 于 2019-10-16 设计创作，主要内容包括：本发明公开一种异形显示屏的点胶方法,根据异形显示屏玻璃台阶的形状设计点胶路径,包括以下步骤：步骤10、将异形显示屏放置于点胶平台上,设置点胶机针头高度,使其高于异形显示屏的上偏光片一定距离；步骤20、对异形显示屏玻璃台阶处的点胶区域生成标靶图像；步骤30、根据标靶图像设定点胶轨迹线；步骤41、根据点胶轨迹线设定点胶机的其他工作参数,进行点胶操作。本发明提供一种异形显示屏的点胶方法,根据异形显示屏玻璃台阶处的点胶区域设置标靶图像,进而根据标靶图像设定点胶轨迹线和点胶机工作参数,对异形显示屏进行点胶操作,通过本方法将异形显示屏的玻璃台阶夹角处的胶水填充到位,大大提高了产品信耐性试验能力和产品良率。(The invention discloses a glue dispensing method of a special-shaped display screen, which designs a glue dispensing path according to the shape of a glass step of the special-shaped display screen and comprises the following steps: step 10, placing the special-shaped display screen on a dispensing platform, and setting the height of a needle head of a dispenser to enable the needle head to be higher than an upper polaroid of the special-shaped display screen by a certain distance; step 20, generating a target image for a dispensing area at the glass step of the special-shaped display screen; step 30, setting a dispensing trajectory line according to the target image; and step 41, setting other working parameters of the dispensing machine according to the dispensing trajectory line, and performing dispensing operation. The invention provides a glue dispensing method for a special-shaped display screen, which is characterized in that a target image is arranged according to a glue dispensing area at a glass step of the special-shaped display screen, a glue dispensing trajectory and a glue dispenser working parameter are set according to the target image, glue dispensing operation is carried out on the special-shaped display screen, glue at a glass step corner of the special-shaped display screen is filled in place through the method, and the product tolerance test capability and the product yield are greatly improved.)

1. A glue dispensing method of a special-shaped display screen is characterized in that a glue dispensing path is designed according to the shape of a glass step of the special-shaped display screen, and comprises the following steps:

step 10, placing the special-shaped display screen on a dispensing platform, and setting the height of a needle head of a dispenser to enable the needle head to be higher than an upper polaroid of the special-shaped display screen by a certain distance;

step 20, generating a target image for a dispensing area at the glass step of the special-shaped display screen;

step 30, setting a dispensing trajectory line according to the target image;

and step 40, setting other working parameters of the dispensing machine according to the dispensing trajectory line, and performing dispensing operation.

2. The method for dispensing a special-shaped display screen according to claim 1, wherein the step 20 comprises:

step 201, taking a picture of a dispensing area at a glass step of the special-shaped display screen by using a CCD camera, and uploading the picture to an upper computer;

step 202, the upper computer receives the picture shot in the step 201, identifies the dispensing area according to the shot picture, and generates a target image of the dispensing area.

3. The dispensing method for the special-shaped display screen according to claim 2, wherein the step 22 of identifying the dispensing area according to the shot picture and generating the target image of the dispensing area comprises: and determining a boundary line of the dispensing area, taking the boundary line as a side of the target image, and taking the boundary line and an area within the boundary line as the target image.

4. The method of dispensing a shaped display screen of claim 3, wherein the edges of the target image comprise: the first edge is coincided with the bottom edge part of the CF panel, the second edge is coincided with the special-shaped edge of the special-shaped display screen, the third edge is coincided with the bottom edge part of the special-shaped display screen and is close to the fourth edge of the IC or the FPC, and one part of the fourth edge is coincided with the side edge of the longer one of the IC or the FPC.

5. A method for dispensing a shaped display screen according to claim 3, wherein the step 30 comprises: the number of the dispensing trajectory lines is the same as the number of the sides of the target image, and all the dispensing trajectory lines are connected end to end; each dispensing trajectory line is parallel to the corresponding edge of the target image, and different distance parameters are set between each dispensing trajectory line and the corresponding edge of the target image.

6. A method for dispensing a profiled display screen according to claim 5, wherein the dispensing trajectory line is divided into a, b, c, d end to end, the a being parallel to the first edge, the b being parallel to the second edge, the c being parallel to the third edge, the d being parallel to the fourth edge; the distance between the dispensing trajectory line a and the first edge is Y1; the distance between the dispensing trajectory line b and the second edge is Z1; the distance between the dispensing trajectory line c and the third side is Y2; the distance between the dispensing trajectory line d and the fourth edge is X1.

7. The dispensing method for the special-shaped display screen according to claim 6, wherein Y1 is more than or equal to 0 and less than or equal to 0.8 mm; z1 is more than or equal to 0 and less than or equal to 0.6 mm; and Y2 is more than or equal to 0 and less than or equal to 0.8 mm; x1 is more than or equal to 0 and less than or equal to 1 mm.

8. The method of dispensing a shaped display screen according to claim 1, wherein the other operating parameters include: glue type, glue dispensing pressure, glue dispensing speed, needle diameter and fitting time.

9. The method of dispensing a shaped display screen according to claim 8, wherein the glue is silicone glue, and the dispensing pressure is: 0.05-0.5 Mpa; the dispensing speed is as follows: 5-30 mm/s; the diameter of the needle head is as follows: 0.4-0.8mm, and the attaching time is 10-15 min.

10. The method for dispensing a special-shaped display screen according to any one of claims 1 to 7, wherein the dispensing area comprises dispensing areas on the left and right sides of the bottom of the special-shaped display screen.

Technical Field

The invention relates to the technical field of LCM (liquid crystal module), in particular to a dispensing method of a special-shaped display screen.

Background

With the pursuit of people for high screen ratio of LCM, the special-shaped screen and the full screen become important elements of current smart phone design. As shown in fig. 1, when the special-shaped screen is produced and processed, a strip of glue m is needed at each point at two ends of the glass step, and the glue filling at the included angle n at two ends of the special-shaped glass step is not in place by the existing glue dispensing process, i.e. the glue filling is not performed at the special-shaped included angle of the special-shaped display screen, so that the glass step of the special-shaped display screen is easily broken when being extruded, and does not meet the quality requirement.

Disclosure of Invention

In order to solve the technical problems, the invention provides a dispensing method for a special-shaped display screen.

The technical scheme of the invention is as follows: the invention provides a glue dispensing method of a special-shaped display screen, which designs a glue dispensing path according to the shape of a glass step of the special-shaped display screen and comprises the following steps:

step 10, placing the special-shaped display screen on a dispensing platform, and setting the height of a needle head of a dispenser to enable the needle head to be higher than an upper polaroid of the special-shaped display screen by a certain distance;

step 20, generating a target image for a dispensing area at the glass step of the special-shaped display screen;

step 30, setting a dispensing trajectory line according to the target image;

and step 41, setting other working parameters of the dispensing machine according to the dispensing trajectory line, and performing dispensing operation.

Further, the step 20 includes:

step 201, taking a picture of a dispensing area at a glass step of the special-shaped display screen by using a CCD camera, and uploading the picture to an upper computer;

step 202, the upper computer receives the picture shot in the step 201, identifies the dispensing area according to the shot picture, and generates a target image of the dispensing area.

Further, in the step 22, identifying a dispensing area according to the shot picture, and generating a target image of the dispensing area is: and determining a boundary line of the dispensing area, wherein the boundary line is used as a side of the target image.

Further, the sides of the target image include: the first edge is coincided with the bottom edge part of the CF panel, the second edge is coincided with the special-shaped edge of the special-shaped display screen, the third edge is coincided with the bottom edge part of the special-shaped display screen and is close to the fourth edge of the IC or the FPC, and one part of the fourth edge is coincided with the side edge of the longer one of the IC or the FPC.

Further, the step 30 includes: the number of the dispensing trajectory lines is the same as the number of the sides of the target image, and all the dispensing trajectory lines are connected end to end; each dispensing trajectory line is parallel to the corresponding edge of the target image, and different distance parameters are set between each dispensing trajectory line and the corresponding edge of the target image.

Further, the dispensing trajectory line is divided into a, b, c and d which are connected end to end, wherein a is parallel to the first edge, b is parallel to the second edge, c is parallel to the third edge, and d is parallel to the fourth edge; the distance between the dispensing trajectory line a and the first edge is Y1; the distance between the dispensing trajectory line b and the second edge is Z1; the distance between the dispensing trajectory line c and the third side is Y2; the distance between the dispensing trajectory line d and the fourth edge is X1.

Further, the Y1 is more than or equal to 0 and less than or equal to 0.8 mm; z1 is more than or equal to 0 and less than or equal to 0.6 mm; and Y2 is more than or equal to 0 and less than or equal to 0.8 mm; x1 is more than or equal to 0 and less than or equal to 1 mm.

Further, the other operating parameters include: glue type, glue dispensing pressure, glue dispensing speed, needle diameter and fitting time.

Further, the glue type is silicone glue, and the dispensing pressure is as follows: 0.05-0.5 Mpa; the dispensing speed is as follows: 5-30 mm/s; the diameter of the needle head is as follows: 0.4-0.8 mm; the attaching time is 10-15 min.

Further, the dispensing area comprises dispensing areas on the left side and the right side of the bottom of the special-shaped display screen.

By adopting the scheme, the invention provides the glue dispensing method for the special-shaped display screen, the target image is arranged according to the glue dispensing area at the glass step of the special-shaped display screen, the glue dispensing track line and the working parameters of the glue dispenser are set according to the target image, and the glue dispensing operation is carried out on the special-shaped display screen. The glass step corner is effectively prevented from being broken due to incomplete glue filling when the product is extruded in the production process of the product; and in a product falling experiment, the glass step corner is effectively prevented from falling and being broken due to the incomplete filling of glue when falling. The problem that the filling position of the included angle of the glass step cannot be filled, the filling position is easy to break is solved, the screen breaking condition is reduced, and the signal tolerance test capability and the product yield are greatly improved.

Drawings

Fig. 1 is a schematic diagram of glue filling for a special-shaped display screen in the prior art.

Fig. 2 is a schematic diagram of a dispensing trace line of a dispensing method for a special-shaped display screen according to the present invention.

Fig. 3 is a partially enlarged view of a dispensing trace line of the dispensing method for a special-shaped display screen according to the present invention.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 2, the present invention provides a dispensing method for a special-shaped display screen, which designs a dispensing path according to a shape of a glass step of the special-shaped display screen, including the following steps:

step 10, placing the special-shaped display screen on a dispensing platform, and setting the height of a needle head of a dispenser to enable the needle head to be higher than an upper polaroid of the special-shaped display screen by a certain distance; specifically, the certain distance is 0.1-0.15mm, and in practical operation, a piece of A4 printing paper is placed between a needle head and a polaroid, so that the printing paper can be pulled lightly.

Step 20, setting a target image in a dispensing area at the step of the glass of the special-shaped display screen, wherein the step comprises the following steps:

step 21, taking a picture of a dispensing area at the glass step of the special-shaped display screen by using a CCD camera, and uploading the picture to an upper computer; the signal transmission between the CCD camera and the upper computer is realized by adopting the means which can be realized by the prior art, as long as the transmission of the photos can be realized.

And step 22, the upper computer receives the picture shot in the step 21, identifies the dispensing area according to the shot picture and generates a target image of the dispensing area. Specifically, the host computer is discerned some glue regions according to the photo of shooing, and generates some glue regional mark target image, include: determining boundary lines of dispensing areas, wherein the boundary lines serve as sides of the target images, areas within the boundary lines and the boundary lines serve as the target images, and the number of the boundary lines of the dispensing areas is the number of the sides of the target images; determining the boundary line of the dispensing area as follows: a boundary line of the dispensing area close to the IC or the FPC is set to coincide with one side of the longer one of the IC or the FPC, the boundary line extends to intersect with other boundary lines, a boundary line of the dispensing area close to the CF panel coincides with the bottom edge of the CF panel and extends to intersect with other boundary lines, and the rest boundary lines of the dispensing area coincide with the boundary of the special-shaped display screen. In a preferred embodiment, the sides of the target image include: the first edge is coincided with the bottom edge part of the CF panel, the second edge is coincided with the special-shaped edge of the special-shaped display screen, the third edge is coincided with the bottom edge part of the special-shaped display screen and is close to the fourth edge of the IC or the FPC, and one part of the fourth edge is coincided with the side edge of the longer one of the IC or the FPC.

Step 30, setting a dispensing trajectory line according to the target image; the method specifically comprises the following steps: the number of the dispensing trajectory lines is the same as the number of the sides of the target image, and all the dispensing trajectory lines are connected end to end; each section of dispensing track line is parallel to the corresponding edge of the target image, and different distance parameters are set between each dispensing track line and the corresponding edge of the target image. It should be noted that the dispensing trajectory line is ensured to be a peripheral line of the dispensed glue by setting parameters of the dispenser, etc. In a preferred embodiment, as shown in fig. 3, the dispensing trajectory line is divided into four segments, a, b, c, and d, where a is parallel to the first edge, b is parallel to the second edge, c is parallel to the third edge, and d is parallel to the fourth edge; the distance between the dispensing trajectory line a and the first edge is Y1, Y1 is more than or equal to 0 and less than or equal to 0.8mm, namely: the distance between the dispensing track line a and the bottom edge of the CF panel is 0-0.8 mm, and the peripheral line glued in the direction is allowed to cover the CF panel within 0.3mm at most; the distance between the dispensing trajectory line b and the second edge is Z1, Z1 is more than or equal to 0 and less than or equal to 0.6mm, namely the distance between the peripheral line of the glue in the direction and the special-shaped edge of the special-shaped display screen is 0-0.6mm, so that the special-shaped edge and the included angle position of the special-shaped display screen cannot overflow the glue; the distance between the dispensing trajectory line c and the third edge is Y2, Y2 is more than or equal to 0 and less than or equal to 0.8mm, namely: the maximum distance between the peripheral line of the glue in the direction and the bottom edge of the special-shaped display screen is 0.8mm, overflow glue is not allowed to exceed the bottom edge, and meanwhile, no overflow glue is left at the included angle of the special-shaped display screen; the distance between the dispensing track line d and the fourth edge is X1, X1 is more than or equal to 0 and less than or equal to 1mm, the distance between the peripheral line of the glue in the direction and the longer one of the IC or the FPC is less than or equal to 1mm, and the glue is prevented from overflowing onto the IC or the FPC during the pasting. As shown in fig. 2, during dispensing, the dispensing needle head takes one end of the dispensing trajectory line a as a starting point, and completes the dispensing operation around the direction a, b, c, d, and the filling of the glue at the special-shaped included angle of the special-shaped display screen is more sufficient due to the supplementary filling between the special-shaped included angles of the special-shaped display screen, thereby improving the quality of the product. In the operation process, the needle head of the dispensing machine is controlled to carry out dispensing operation along the preset dispensing track line and at a certain distance from the dispensing track line, so that the situations of glue overflow and insufficient glue filling are avoided.

And step 40, setting other working parameters of the dispensing machine according to the dispensing trajectory line, and performing dispensing operation. Specifically, the setting of other working parameters of the dispenser includes: glue type, glue dispensing pressure, glue dispensing speed, needle diameter and fitting time. The upper computer sets for the parameter value of point gum machine, in this embodiment the glue kind is silicone adhesive, the pressure range is glued to the point: 0.05-0.5 Mpa; the glue dispensing speed

The degree is as follows: 5-30 mm/s; the diameter of the needle head is as follows: 0.4-0.8 mm; the laminating time is within 15 minutes after the glue dispensing is finished. According to the different types of the silicone adhesive, the dispensing parameters are correspondingly adjusted, and the details are shown in the following table:

after the other working parameters of the dispenser are set, the upper computer controls the dispenser to start dispensing operation, so that the needle head of the dispenser moves according to the dispensing trajectory lines a, b, c and d in sequence to finish dispensing. In addition, the dispensing area comprises the left side and the right side of the bottom of the special-shaped display screen, the dispensing methods on the two sides are the same, dispensing can be performed on the other side after dispensing is completed on one side, two dispensing platforms can be arranged, and dispensing can be performed on the left side and the right side at the same time.

In summary, the invention provides a dispensing method for a special-shaped display screen, which comprises the steps of setting a target image according to a dispensing area at a glass step of the special-shaped display screen, further setting a dispensing track line and working parameters of a dispensing machine according to the target image, and dispensing the special-shaped display screen; and in a product falling experiment, the glass step corner is effectively prevented from falling and being broken due to the incomplete filling of glue when falling. The problem that the filling position of the included angle of the glass step cannot be filled, the filling position is easy to break is solved, the screen breaking condition is reduced, and the signal tolerance test capability and the product yield are greatly improved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.