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Mask plate or display motherboard and method of making cut marks on display motherboard

A technology of cutting marks and masks, which is applied to the photographic process of patterned surfaces, originals for photomechanical processing, and instruments. Cutting alignment accuracy and other issues, to achieve the effect of convenient measurement, improve yield, and ensure alignment accuracy

Active Publication Date: 2021-01-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a mask plate or display motherboard and a method for making cutting marks on the display motherboard, which solves the problem of cutting the OLED display motherboard in the prior art because there is no other frame of reference. When the equipment captures incomplete or other cutting marks, it will not be able to accurately capture the cutting line and thus cannot guarantee the alignment accuracy during cutting; when re-checking the cutting accuracy of the OLED display motherboard after cutting, there is no Obvious frame of reference is used for measurement, which leads to the difficulty of rechecking cutting accuracy

Method used

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  • Mask plate or display motherboard and method of making cut marks on display motherboard
  • Mask plate or display motherboard and method of making cut marks on display motherboard
  • Mask plate or display motherboard and method of making cut marks on display motherboard

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Embodiment 1

[0029] Embodiment 1. The embodiment of the present invention provides a mask plate or a display motherboard. A cutting mark 10 is arranged on the mask plate or a display motherboard. The cutting mark 10 is as figure 2 What is shown includes: a first pattern 101 , a second pattern 103 and a straight marking line 102 ; wherein, the first pattern 101 and the second pattern 103 are symmetrical about the straight marking line 102 .

[0030] Exemplarily, when using the exposure process for pattern transfer, such as figure 2 The straight marking line shown on the corresponding mask plate is a hollow rectangle matching its size instead of a straight line. The reason is that if the straight marking line on the mask plate is designed as a straight line, after exposure, The area corresponding to the position of the straight marking line cannot be illuminated by light. After the etching process, there will be no marking line left on the display motherboard; therefore, it is necessary to...

Embodiment 2

[0032]Embodiment 2. The embodiment of the present invention provides a mask board or a display motherboard. A cutting mark 10 is arranged on the mask board or a display motherboard. The cutting mark 10 is as image 3 Shown include: the first pattern 101, the second pattern 103, the third pattern 104, the fourth pattern 105 and the straight marking line 102; the shape of the first pattern 101 and the second pattern 103 is a rectangle, and the long sides of the rectangle and The marking lines 102 are parallel; the third pattern 104 is located on the side of the first pattern away from the straight marking line 102; the fourth pattern 105 is located on the side of the second pattern away from the straight marking line 102; wherein, the first pattern 101, The second pattern 103 is symmetrical about the straight marking line 102 .

[0033] It should be noted that in the process of designing the cutting mark, the third pattern and the fourth pattern can be set as required; the cutti...

Embodiment 3

[0037] Embodiment 3. The embodiment of the present invention provides a mask plate or a display motherboard, and a cutting mark 10 is arranged on the mask plate or a display motherboard. The cutting mark 10 is as Figure 4 Shown includes: a first pattern 101, a second pattern 103, a straight marking line 102, and at least one set of fifth patterns 106 and sixth patterns 107 symmetrical to the straight marking line; wherein, the first pattern 101, the second The second pattern 103 is symmetrical about the straight marking line 102; the fifth pattern 106 is located on the side of the first pattern 101 away from the straight marking line 102, and the sixth pattern 107 is located on the side of the second pattern 103 away from the straight marking line 102. side.

[0038] It should be noted that at least one group is one group or more than two groups, and a group of fifth patterns and sixth patterns here refers to a type of pattern, that is, each group of fifth patterns and sixth ...

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Abstract

Embodiments of the present invention provide a mask plate or display motherboard and a method for making cutting marks on the display motherboard, which relate to the field of display technology and solve the problem of lack of OLED display motherboard cutting in the prior art. For other reference systems, when the cutting equipment grabs the incomplete or other cutting marks, it will lead to the inability to accurately grab the cutting line and thus cannot guarantee the alignment accuracy during cutting; after re-checking the OLED display motherboard after cutting When cutting accuracy, since there is no obvious reference system for measurement, it is difficult to recheck the cutting accuracy. The cutting mark includes a first pattern, a second pattern and a straight marking line; wherein, the first pattern and the second pattern are symmetrical about the straight marking line. Embodiments of the present invention are used in the design of cutting marks.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a mask plate or a display motherboard and a method for making cutting marks on the display motherboard. Background technique [0002] With the advancement of technology, organic light emitting diodes (English full name: Organic Light Emitting Display, abbreviated: OLED) are more and more widely used in daily life. When manufacturing OLED display panels, it is usually necessary to cut a motherboard (also referred to as an OLED display motherboard) containing multiple OLED display panels to form OLED display panels of different sizes for use in different application scenarios. [0003] In the prior art, when the OLED display motherboard is cut in the motherboard cutting process, the laser cutting equipment adopts such as figure 1 As shown in the cutting mark, the design shape of the cutting mark is a cross shape, the length is 400 μm, the width is 100 μm, and the cutting accuracy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F1/42G03F9/00
CPCG03F1/42G03F9/7046
Inventor 王波吴小平姜成才李高纯
Owner BOE TECH GRP CO LTD