function UpdateList(){    
    $.ajax({
        url: _spPageContextInfo.webAbsoluteUrl + "/_api/Web/Lists/getbytitle('Pages')/Fields(guid'f941f8cf-65d5-4cdb-bc6b-6fab7ea92bc3')/setshowindisplayform(false)",
        type: "POST",
        contentType: "application/json;odata=verbose",
        headers: {
            "Accept": "application/json;odata=verbose",
            "X-RequestDigest": $("#__REQUESTDIGEST").val(),
            "X-HTTP-Method": "MERGE",
            "If-Match": "*"
        },
        success: function (data) {
            alert('Success');
            window.location.href=window.location.href;
        },
        error: function (data) {
            console.dir(data);
        }
    });
}
UpdateList();