This part is a kind of semiconductor called SSD1289.
Function of this product has 240 RGB x 320 TFT LCD Controller Driver.
Manufacturers : Solomon Systech
Image and pinout :

Some of the text within the PDF file :
SOLOMON SYSTECH SEMICONDUCTOR TECHNICAL DATA SSD1289 Advance Information 240 RGB x 320 TFT LCD Controller Driver integrated Power Circuit, Gate and Source Driver with built-in RAM This document contains information on a new product. Specifications and information herein are subject to change without notice. http://www.solomon-systech.com SSD1289 Rev 1.3 P 1/82 Apr 2007 Copyright © 2007 Solomon Systech Limited Free Datasheet http://www.0PDF.com CONTENTS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GENERAL DESCRIPTION . 5 FEATURES. 6 ORDERING INFORMATION.. [ ... ]
SSD1289 PDF Datasheet Download
