Test pressure head

Abstract

The invention relates to the technical field of display panel test, and discloses a test pressure head. The test pressure head comprises a test assembly and a pressing block, wherein the test assemblycomprises a connection assembly and a test head assembly; the test head assembly is arranged on the connection assembly; the test head assembly is an FPC board with a test conduction part; the conduction surface of the test conduction part of the FPC board forms an oblique included angle with the crimping surface of a to-be-tested member; and the pressing block is configured to fix the test assembly and is capable of detecting the pressing height of the test assembly. Through enabling the conduction surface of the test conduction part of the FPC board to form the oblique included angle with the crimping surface of the to-be-tested member, the FPC board can be obliquely cut into the to-be-tested member to be in contact with the to-be-tested member, and through the oblique contact manner, the contact area between a gold finger of the FPC board and the metal contact of a display panel is enlarged, the contact effect between the gold finger and the metal contact is ensured, and the possibility of floating contact is avoided; and through detecting the pressing height of the test assembly, the pressing pressure between the FPC board and the to-be-tested member can be accurately controlled, so that accurate impedance value measurement can be carried out on the display panel.

Description

technical field [0001] The invention relates to the technical field of display panel testing, in particular to a testing pressure head. Background technique [0002] In the field of display technology, organic light-emitting diode (Organic Light-Emitting Diode, OLED) display technology has the advantages of self-illumination, wide viewing angle, almost infinitely high contrast, low power consumption, high response speed, etc., and is widely used in TVs, In the display panels of mobile phones, tablet computers, etc. With the continuous improvement of people's demands on the control of electronic devices, display panels with touch functions are attracting more and more attention. [0003] For a display panel using OLED technology, multiple parameters of the display panel, such as color saturation and impedance value, need to be tested during the production process. Among them, the impedance value is an important index to measure whether the display panel is qualified, and th...

AI Technical Summary

Problems solved by technology

[0005] During the process of crimping the display panel with the indenter, the contact effect between the gold finger and the metal contact will affect the accuracy of the detected impedance value

When the existing indenter crimps the display panel, the gold finger is in direct contact with the metal contact, and the contact area between the gold finger and the metal contact is small or incomplete, resulting in inaccurate measured impedance values

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