pixelization in webview

• Application type: mobile
• Titanium SDK: 3.5.0.GA
• Platform & version: Android 4.4
• Device: physical device smasung galaxy not 4
• Host Operating System: OSX 10.9.5
• Titanium Studio: version, 3.4.1.201410281727
• a simple test case:

$.webview.setUrl('http://domain.com/');
 $.webview.setEnableZoomControls(false);

app look like fine in scale 1:1

but the design pixelization in xxxhdpi ! why ?

any suggestion ?