A test fixture and test method for a display panel
A technology for display panels and test fixtures, applied to measuring devices, instruments, optics, etc., can solve problems such as cracked display panels, poor picture display, and failed verification of display panels, and achieve the effect of improving the test level
Active Publication Date: 2020-04-24
KUSN INFOVISION OPTOELECTRONICS
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Problems solved by technology
Of course, in the stress test, there are also cases where the display panel is cracked, so the display panel has not passed the verification.
[0004] However, the display panel that has passed the above stress test and has passed the verification may still have the problem of poor picture display in actual use.
Method used
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[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0045] An embodiment of the present invention provides a test fixture for a display panel, figure 1 It is a schematic top view structure diagram of a test fixture for a display panel without a display panel to be tested provided by an embodiment of the present invention, figure 2 A schematic cross-sectional structure diagram of a test fixture for a display panel with a display panel to be tested provided in an embodiment of the present invention, combined with figure 1 and figure 2 As shown, the test fixture f...
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The embodiment of the invention discloses a test fixture of a display panel and a testing method thereof. The test fixture of the display panel comprises a testing platform, multiple elastic parts, a force applying part, and a signal applying circuit; the testing platform comprises a supporting platform and a supporting bulge part, wherein the first end of the supporting bulge part is connected to the edge of the supporting platform, and the second end thereof contacts with the edge of the display panel to be tested and used for supporting the display panel to be tested to place in parallel to the supporting platform; first ends of the multiple elastic parts are fixed on the supporting platform and located in an encircling zone of the supporting bulge part; the second ends thereof are faced to the display panel to be tested; the force applying part is used for applying pressure to multiple testing points of one side of the to-be-tested display panel deviating from the testing platform; the signal applying circuit is used for inputting the scanning signal and the data signal to the to-be-tested display panel so as to light up a sub-pixel of the to-be-tested display panel. The technical scheme of the embodiment can improve the testing level of the display panel.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a test fixture and a test method for a display panel. Background technique [0002] Display panels will inevitably be affected by uncertain external forces during transportation or use by customers, resulting in some problems such as poor quality of products. [0003] At present, before the display panel leaves the factory, the display panel is usually tested by placing the display panel flat on a machine table and applying a test pressure to the back of the display panel to test the quality of the display panel. If the picture display of the display panel after the stress test is still normal, the display panel has passed the verification. If the sub-pixels of the display panel after the stress test have poor display, for example, bright spots appear in the sub-pixels, the display panel has failed the verification. Of course, in the stress test, there are also cases where the ...
Claims
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IPC IPC(8): G02F1/13G01N19/08
CPCG01N19/08G02F1/1309
Inventor 徐艳林
Owner KUSN INFOVISION OPTOELECTRONICS