The complexity of GUI and some combinations of personalized settings make the UI display issues occur frequently. Unfortunately, little is known about the causes of UI display issues. The Android fragmentation and variety of UI components post a great challenge to repair the issue. Based on the our empirical study, this paper proposes Woodpecker to automatically detect, localize and repair UI display issues in Android apps. It detects the screenshots with UI display issues with computer vision technology, localizes the buggy source code from the screenshot, and repairs the issues with pre-defined templates automatically. We evaluate Woodpecker with 30 real-world UI display issues, it can successfully detect 87% and repair 77% issues. We further apply Woodpecker to another 256 popular open-source Android apps, and successfully uncover 112 previously-undetected UI display issues. It can automatically repair 106 (94%) issues, with 76 of them accepted by developers so far, while others pending (none of them is rejected).