ST7713 datasheet(96/159 Pages) SITRONIX

tên linh kiện	ST7713

Giải thích chi tiết về linh kiện	262K Color Single-Chip TFT Controller/Driver

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ST7713

Ver 1.6

2008-05

9.20.4 Display Glass Break Detection

Sleep Out-command (See section 10.1.12 “Sleep Out (11h)”) is a trigger for an internal function of the display module,

which indicates, if the display glass of the display module is broken or not.

There is inverted (= increased by 1) a bit, which is defined in command 10.1.10 “Read Display Self-Diagnostic Result (0Fh)”

(= RDDSDR) (The used bit of this command is D4), if the display glass is not broken. If this display glass is broken, this bit

(D4) is not inverted (= increased by 1).

The following figure is a reference, how this glass break detection can be implemented e.g. there is connected together 2

bumps via route of ITO. This route of ITO is the nearest route of the edge of the display glass.

The flow chart for this internal function is following:

Sleep In (10h)

Sleep Out Mode

Sleep In Mode

Sleep Out (11h)

Checks, if display glass broken

Is the display glass broken?

D4 inverted

Yes

RDDSDR’s D4=0

Power on sequence

HW reset

SW reset

Active area of the display glass

Through view of driver to Bump

Substrate of display glass

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