In general, trademark registration does not restrict you to using your word trademark exactly as typed at the time of registration. Once your trademark is registered, you typically have the flexibility to use it in various formats, including all caps, some letters capitalized, or even in different stylizations, as long as the distinctive elements of the mark remain unchanged.
Trademark registration primarily protects the specific wording and combination of words in your mark, rather than the specific format or styling. The goal is to ensure that consumers can identify the source of goods or services associated with your mark, regardless of the specific case or formatting used.
However, it's important to exercise caution when making changes to the appearance or stylization of your registered trademark. Any changes should not alter the overall distinctive character of the mark or create confusion with other registered trademarks. The changes should not significantly affect the consumer's perception or understanding of your mark.