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Today I dropped my iPhone 5s and it did get cracked but only the top half of the screen is responsive and the bottom half isn’t. The bottom half doesn’t have any black spot or discolored but my question is when I go to repair my phone will I have to repair lcd with it????

Yes. The front display assembly (LCD + Digitizer + Frame) will need to be replaced as the touch screen is fused together with the LCD. You can get the part from here: iPhone 5s LCD and Digitizer Replacement guide for screen: iPhone 5s LCD and Digitizer Replacement Note that if the corners are bent too bad the screen will not fit on properly which they should be bent back to normal or close as possible so that the screen will fit in properly.