7.0" TFT LCD Module, Resolution 800x480, SSD1963 Controller Guidance for help

Hello, newbie here. Recently I have bought a 7" display and a LCD shield. After connecting all of them together with and arduino Mega 2560, download some examples library. Then the display never show up anything; blank screen. I have desperately searching for the solution the whole day, still nothing happen. Script after script it never works. (TFT examples)

Here is the link for the display I have bought:
https://www.lazada.com.my/products/new-7-inch-tft-lcd-module-800x480-ssd1963-touch-pwm-for-arduino-avr-stm32-arm-800480-800-480-digital-control-board-i561010947-s1116824768.html

Here is the link for the LCD shield:
https://www.lazada.com.my/products/tft-sd-shield-fast-speed-small-lcd-32-inch-expansion-board-module-spared-parts-for-arduino-due-i780520427-s1780606206.html

Pls… I am hoping I can have it done as soon as possible. If I done anything wrong, do not be mad.
I just want a little bit of guidance on this problem. Because after doing many cool project with arduino micro controller, I eventually make something out of what I have learn so far. Again I am new here.