A contact angle detection module, manufacturing method and detection method
A technology for contact angle and detection mode, which can be used in measurement devices, instruments, optical devices, etc., and can solve problems such as time-consuming detection errors.
Active Publication Date: 2021-01-26
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a contact angle detection module, manufacturing method and detection method to solve the problems of time-consuming and large detection errors in the prior art when detecting the contact angle
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Embodiment 1
[0048] See figure 1 , figure 1 It is a structural diagram of a contact angle detection module provided by an embodiment of the present invention, such as figure 1 As shown, this embodiment provides a contact angle detection module, including: a first substrate 1 and a second substrate 2 arranged oppositely;
[0049] The first substrate 1 includes: a first base substrate 11, a thin film transistor array (composed of a plurality of thin film transistors 12) located on the first base substrate 11, a planarization layer 13 covering the thin film transistor array , and a photodetector array located on the planarization layer 13, the photodetector array comprising a plurality of individually addressable photodetectors 14;
[0050] The second substrate 2 includes: a light guide plate 21, a collimation grating array (composed of a plurality of collimation gratings 22) on the light guide plate 21, and a low refractive index layer 23 covering the collimation grating array, so The ref...
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Embodiments of the present invention provide a contact angle detection module, a manufacturing method, and a detection method, wherein the contact angle detection module includes: a first substrate and a second substrate arranged oppositely; the first substrate includes: a first substrate substrate, a a thin film transistor array on a first substrate, a planarization layer covering the thin film transistor array, and a photodetector array on the planarization layer, the photodetector array including a plurality of individually addressable photodetectors; the second The substrate includes: a light guide plate, a collimation grating array located on the light guide plate, a low refractive index layer covering the collimation grating array, and the refractive index of the low refractive index layer is less than a preset threshold; the contact angle detection module further includes: located on the light guide plate. The light source on the light incident side; the controllable grating structure located on the light exit side of the light source, and the controllable grating structure is used to control the exit angle of the light emitted by the light source. The degree of manual participation is reduced, and the test accuracy and test efficiency are improved.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a contact angle detection module, a manufacturing method and a detection method. Background technique [0002] In the manufacturing process of display devices, the wettability (hydrophobicity or hydrophilicity) of the surface of the functional film plays a key role in the process and the function of the device. For example, for digital microfluidic devices, the contact surface of micro-droplets requires strong hydrophobicity. characteristics in order to reduce the driving voltage; for the wet etching process of indium tin oxide (Indium tin oxide, ITO) film layer, the surface of ITO film layer needs strong hydrophilic characteristics, which is convenient for the etching solution to contact with the ITO surface. [0003] At present, the test of the surface contact angle of the film layer adopts semi-automatic test. During the test, the test equipment controls the syringe to drop ...
Claims
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IPC IPC(8): G01B11/26
Inventor 罗雯倩李响布占场
Owner BOE TECH GRP CO LTD