A detection system for a refractive compensation element of a display device

Abstract

A detection system for a refractive compensation element of a display device includes: an optical measurement device, a reverse refractive compensation device, and an image acquisition device. The optical measurement device provides an optical measurement path. The reverse refractive compensation device includes a first platform with a plurality of first-type optical elements and a second platform with a plurality of second-type optical elements. The detection system performs an alignment procedure for the optical measurement path through image acquisition by the image acquisition device, enabling the reverse refractive compensation device to provide accurate reverse compensation. Therefore, the detection system can be automated and has good system adaptability and production line application value.

Claims

1. A detection system for a refractive compensation element of a display device, the refractive compensation element providing a compensation condition for adjusting an input light into an output light as the output of the display device, the detection system providing a calibration mode and a detection mode, the detection system comprising: an optical measurement device providing an optical measurement path; a reverse refractive compensation device disposed on the optical measurement path, including a first platform disposed of a plurality of first-type optical elements and a second platform disposed of a plurality of second-type optical elements; and an image capturing device selectively disposed on the optical measurement path, located on the optical measurement path in the calibration mode and not located on the optical measurement path in the detection mode, wherein... In the calibration mode, the reverse refractive compensation device selects the corresponding first type of optical element and the second type of optical element according to the compensation condition, and performs an alignment procedure with the optical measurement path by the image acquisition device. In the detection mode, the corresponding first type of optical element and the second type of optical element are used to reverse compensate the received output light and provide it to the optical measurement device according to the compensation condition.

2. The detection system as described in claim 1, wherein, The first platform includes a plurality of first marks and a plurality of second marks. Each of the first type of optical elements includes a corresponding first mark and a corresponding second mark. The first mark is used to provide coordinate information associated with the corresponding first type of optical element, and the second mark is used to provide angle information associated with the corresponding first type of optical element.

3. The detection system as described in claim 2, wherein the calibration mode includes a first type of optical element selection procedure, which obtains the coordinate information corresponding to the first type of optical element that matches the compensation condition from a coordinate table, and switches the corresponding first type of optical element to the optical measurement path according to the coordinate information, wherein the coordinate table includes the coordinate information corresponding to each first type of optical element.

4. The detection system as described in claim 3, wherein, The alignment procedure includes: a path alignment procedure, in which, after the first platform completes the switching of the selected first type of optical element, a first image is obtained by the imaging device of the first platform, and the first platform is moved and controlled based on the first mark in the first image so that the first type of optical element is aligned with the optical measurement path; and an angle alignment procedure, in which, after the path alignment procedure, a second image is obtained by the imaging device of the first platform, and the first type of optical element is rotated and controlled based on the second mark in the second image so that the angle information of the first type of optical element matches the reverse compensation condition.

5. The detection system as claimed in claim 4, wherein each of the first type of optical elements is disposed on the first platform via a frame, the second mark is marked on the frame, and the frame is rotated via a drive mechanism.

6. The detection system as claimed in claim 5, wherein the driving mechanism includes a driving unit and a plurality of connecting units, each of the connecting units being simultaneously connected to the frame of different first-type optical elements so as to simultaneously drive the first-type optical elements based on the driving of the driving unit, so that the first-type optical elements rotate together.

7. The detection system as claimed in claim 6, wherein each of the connecting units is a gear or a rack.

8. The detection system as claimed in claim 6, wherein the second platform includes a rotating disk, which, in the calibration mode, is controlled based on the compensation condition to position the corresponding second type of optical element in the optical measurement path.

9. The detection system as claimed in any one of claims 1 to 8, wherein each of the first type of optical elements is suitable for the correction of astigmatism, and each of the second type of optical elements is suitable for the correction of myopia or hyperopia.

10. The detection system as claimed in claim 9, wherein each of the first type of optical elements is a cylindrical lens and each of the second type of optical elements is a spherical lens.

11. The detection system as claimed in claim 10, wherein in the detection mode, when the restored output light received by the optical measurement device from the reverse refractive compensation device does not conform to a detection specification, the refractive compensation element of the display device is determined to be abnormal.

12. The detection system as described in claim 11, wherein the optical measuring device is a colorimeter.

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