Legal analysis: It is not necessary, but it is recommended to register copyright to avoid disputes. Although trademark rights and copyrights are both intellectual property rights, they are protected by different laws and the objects of protection are not the same, so they are not reciprocal. A work has copyright as soon as it is created and does not require copyright registration. However, copyright registration is conducive to the protection of works and is conducive to proving the ownership of works. A trademark is protected by trademark law only within the scope of the registered goods or similar goods. It does not exclude others from applying for trademark registration on other goods of different or similar categories. Copyright registration of works will help the copyright owner to file objections to other people's trademark applications and declare them invalid based on their prior copyright rights. Similarly, if you apply for trademark registration based on someone else's work, you may face the risk of infringing on someone else's prior copyright.
Legal basis: "Trademark Law of the People's Republic of China"
Article 8 Any sign that can distinguish the goods of a natural person, legal person or other organization from the goods of others , including words, graphics, letters, numbers, three-dimensional logos, color combinations and sounds, etc., as well as combinations of the above elements, can be applied for registration as trademarks.
Article 9 The trademark applied for registration shall have distinctive features and be easy to identify, and shall not conflict with the legal rights previously obtained by others.
The trademark registrant has the right to indicate "registered trademark" or registered mark.