Device and system for testing flatness

    公开(公告)号:US11948845B2

    公开(公告)日:2024-04-02

    申请号:US17483613

    申请日:2021-09-23

    CPC classification number: H01L22/12 G01B11/306 H01L21/02422

    Abstract: The present disclosure relates to a device and a system for testing flatness. The device for testing flatness includes a base, a testing platform, and a ranging sensor. The testing platform is assembled on the base. The testing platform includes a supporting structure. The supporting structure is disposed on the side of the testing platform away from the base and is used to support a to-be-tested board. The structure matches the structure of the to-be-tested board. The ranging sensor is disposed on the side of the testing platform away from the base. After the to-be-tested board is placed on the testing platform, the ranging sensor is used to test distances between a number N of to-be-tested positions on the to-be-tested board and the ranging sensor, to obtain N pieces of distance information, and the N pieces of distance information are used to determine the flatness of the to-be-tested board, where N is an integer greater than 2. According to the embodiments of the present disclosure, the flatness of the glass substrate can be tested to improve the manufacturing process to reduce the flatness of the glass substrate, and avoid the problem that the glass substrate is easily broken when entering the subsequent process equipment and the process equipment is down.

    METHOD FOR MANUFACTURING DISPLAY SUBSTRATE, DISPLAY SUBSTRATE, AND DISPLAY APPARATUS

    公开(公告)号:US20210364848A1

    公开(公告)日:2021-11-25

    申请号:US16618239

    申请日:2019-05-31

    Abstract: The present disclosure relates to a method of preparing a display substrate. The method may include forming a pattern layer on a base substrate; forming a planarization layer on the pattern layer, the planarization layer comprising a host material and a hydrophilic material and a hydrophobic material mixed in the host material; treating the planarization layer so that the host material reacts with the hydrophilic material to form a hydrophilic polymer, the host material reacts with the hydrophobic material to form a hydrophobic polymer, and the planarization layer is delaminated to form a first sub-planarization layer and a second sub-planarization layer; and cleaning the planarization layer with a cleaning solution that reacts with the hydrophobic polymer to remove at least part of the first sub-planarization layer. The first sub-planarization layer includes the hydrophobic polymer, and the second sub-planarization layer includes the hydrophilic polymer.

    Light shielding structure and laser device

    公开(公告)号:US10831072B2

    公开(公告)日:2020-11-10

    申请号:US16027689

    申请日:2018-07-05

    Abstract: The present disclosure relates to the field of display technology, and in particular relates to a light shielding structure and a laser device. The light shielding structure comprises a first light shielding plate group and a second light shielding plate group, each of the first light shielding plate group and the second light shielding plate group comprises at least one light shielding plate, and the at least one light shielding plate can be moved relatively for forming at least two light transmitting regions. The light shielding structure can realize partial scanning of multiple target regions at a time, thereby saving production time, increasing production efficiency, saving water and electricity and other resources, and prolonging the laser lifetime.

    Method for manufacturing display substrate

    公开(公告)号:US11063069B2

    公开(公告)日:2021-07-13

    申请号:US16577578

    申请日:2019-09-20

    Abstract: A method for manufacturing a display substrate is provided to include: forming an amorphous silicon layer on a base substrate; irradiating at least part of the display region through a mask plate with a laser, to convert a portion of the amorphous silicon layer in the irradiated part of the display region corresponding to channel regions of active layers of transistors into polycrystalline silicon by a laser annealing process; irradiating at least part of the peripheral region with a laser, to convert the amorphous silicon layer in the irradiated part of the peripheral region into polycrystalline silicon; and forming the active layers of the transistors from the amorphous silicon layer which is converted to polycrystalline silicon by a patterning process.

    Transfer apparatus and laser annealing apparatus

    公开(公告)号:US09941147B2

    公开(公告)日:2018-04-10

    申请号:US15182953

    申请日:2016-06-15

    CPC classification number: H01L21/6838 H01L21/67288

    Abstract: A transfer apparatus includes a supporting member, a free electron excitation device and a detection device; the free electrons excitation device is configured to excite semiconductor material of an object to be transferred to generate free electrons, and the detection device is configured to detect whether material of a surface of the transferred object in contact with the support surface of the supporting member is conductive under excitation by the free electron excitation device. A laser annealing apparatus comprising the transfer apparatus is further provided.

    Hydraulic Jack
    10.
    发明申请

    公开(公告)号:US20170327358A1

    公开(公告)日:2017-11-16

    申请号:US15531798

    申请日:2016-02-17

    CPC classification number: B66F3/32 B66F3/25 B66F3/42 F16K11/0856

    Abstract: A hydraulic jack includes an oil cylinder, an oil tank, and an oil storage barrel. The oil storage barrel includes a front portion and a back portion which are opposite to each other; an oil outlet of the oil cylinder is connected with an oil inlet at the front portion of the oil storage barrel by means of an oil inlet pipe; and an oil inlet of the oil tank is connected with an oil outlet at the front portion of the oil storage barrel by means of an oil outlet pipe, the oil inlet pipe and the oil outlet pipe are provided with switching valves for alternatively turning on the oil inlet pipe and the oil outlet pipe. A partition plate that is capable of moving along a barrel wall and an elastic telescoping member are provided inside the oil storage barrel.

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