You are here: HomeProjectsSeries 1 - Display Driver Boards

Series 1: Part 8 - Writing A Skeleton TFT-LCD Display Device Driver


Abstract

0000445In this part of the series a method of using symbolic logic to represent HDL, when designing the architecture of a hardware algorithm, is introduced. The method is used to develop a modular, skeleton, device driver for TFT-LCD displays in general and the LQ043T3DX02 display (used in the Sony PSP) in particular. The design method introduced is used to generate a display’s horizontal and vertical synchronisation timing signals, by using its (the display's) timing characteristic parameters provided in its datasheet. Finally, by using a color look-up table a method of displaying images on the display is demonstrated.

Read more: Series 1: Part 8 - Writing A Skeleton TFT-LCD Display Device Driver

Series 1: Part 7 - The Ubiquitous Prototype (LQ043T3DX02)

Abstract

0000318In this edition, of Series 1 of the Missing Lecture Notes (MLN), the role of the prototype is investigated and its use in the design of a new revision of the LQ043T3DX02 development board is presented. This article also introduces the major components used in the new design and the project’s  preliminary budgetary requirements. Components for the prototype board are selected based on the system requirements analysis developed previously. Component selection has also been performed in order to develop useful projects, for use on the board, in the areas of computer graphics algorithm development, data acquisition and Digital Signal Processing (DSP), software development and FPGA firmware development,  Finally, a comprehensive analysis of  the power supply requirements is presented.

Read more: Series 1: Part 7 - The Ubiquitous Prototype (LQ043T3DX02)

Series 1: Part 6 - Towards Creating a Universal Display Driver Board (LQ043T3DX02)

Abstract

0000317In this part of the design series the foundations are laid for developing a universal display driver board for displaying data on the LQ043T3DX02 display used in the Sony PSP. The engineering design flow of firstly considering the project aims through to finally extracting the system requirements is demonstrated.  By considering the design of the board from a customer's and not a design engineers view point, the requirements derived in this part of the series are captured from a users point of view. Consequently this part of the series achieves the aim of determining the system requirements of a universal display driver board.

Read more: Series 1: Part 6 - Towards Creating a Universal Display Driver Board (LQ043T3DX02)

Series 1: Update - Assembly and Testing (LQ043T3DX02)

Abstract 

0000296The updates presented here are a collection of material, originally presented on Ben Popoola's blog demonstrating the assembling and finally, the working LQ043T3DX02 driver board. The material has been presented in the same style and original format and brings to a completion the notes used to construct the first version of the LQ043T3DX02 driver board. The material in the first section shows some assembly pictures while the following section shows, quite interestingly, the working backlight LED's! The third section shows a charred backlight circuit (whoops) while finally the result of a  working LQ043T3DX02 driver board is presented. 

Read more: Series 1: Update - Assembly and Testing (LQ043T3DX02)

Series 1: Part 5 - PCB Design Schematics and Artwork (LQ043T3DX02)

 Abstract

LQ043T3DX02 driver board - top layer

The objective of Series 1 of the Missing Lecture Notes (MLN) series is to develop A LQ043T3DX02 (Sony PSP) Display Driver Board. In the first section, of this part of the series, some preliminary design techniques that can ease the overall PCB design process are presented. The next section introduces thermal management and discusses how thermal analysis can be used to ensure that devices are used within the bounds of their operating temperatures. Some last-minute component value modifications and re-calculations are presented in the third section along with updated versions of the requirement and design specifications. Next the preliminary PCB schematics and artwork are presented. In the final section of Part 5 the topic of signal integrity is re-visited in an attempt to explain some of the side effects of transmission lines that could ruin the design.

Read more: Series 1: Part 5 - PCB Design Schematics and Artwork (LQ043T3DX02)