7.8-Inch 1404 × 1872 Active-Matrix ePaper Display
DMAYE0780X8NB is a 7.8-inch active-matrix electrophoretic display with reflective, bi-stable operation, a 1404 × 1872 pixel matrix, and a 0.0845 × 0.0845 mm pixel pitch. The published mechanical specification lists a pixel density of 300 dpi.
The module uses a 40-pin FPC connection with 0.5 mm pitch and can be driven by the HH7163 timing controller, as stated in the product specification. The same document provides the pin assignment, electrical characteristics, power sequence, mechanical dimensions, optical characteristics, handling requirements, reliability tests, block diagram, and certification status.
Technical reference: Use the DMAYE0780X8NB V1.0.0 product specification as the primary reference for pin assignment, electrical limits, power sequence, mechanical dimensions, optical test conditions, handling requirements, reliability tests, and RoHS status.
Product Specifications
The values below are reproduced from the DMAYE0780X8NB V1.0.0 product specification. Minimum, typical, maximum, and test-condition details are retained where stated.
| Parameter | Published Specification |
|---|---|
| Product Model | DMAYE0780X8NB |
| Display Technology | Active-matrix electrophoretic display; reflective and bi-stable operation |
| Nominal Screen Size | 7.8 inch |
| Resolution | 1404 × 1872 pixels |
| Pixel Density | 300 dpi |
| Pixel Pitch | 0.0845 × 0.0845 mm |
| Active Area | 118.638 × 158.184 mm |
| Module Outline | 127.6 × 173.8 × 0.86 mm |
| Module Weight | 38.93 g |
| Connection | 40-pin FPC, 0.5 mm pitch |
| Timing Controller | HH7163 timing controller (T-Con) |
| White Reflectance | 42% minimum, 45% typical at 25°C and 85 Hz under the published optical test conditions |
| Contrast Ratio | 16:1 minimum, 20:1 typical at 25°C and 85 Hz under the published optical test conditions |
| Image Update Time | 520 ms typical at 25°C under the specified controller and waveform conditions |
| Typical Module Power | 102 mW when typical images are displayed |
| Standby Module Power | 0.93 mW when the module controller is in standby mode |
| Operating Temperature | 0°C to 50°C |
| Operating Relative Humidity | 0% to 70% RH |
| Storage Temperature | -25°C to 60°C |
| Storage Relative Humidity | 30% to 60% RH |
| RoHS Status | RoHS compliant according to the published product specification |
Optical Performance and Image Updating
The module is specified for reflective and bi-stable operation. White reflectivity and contrast ratio are measured at 25°C and 85 Hz with an Eye-One Pro spectrophotometer.
Published Optical Performance
Published performance includes 42% minimum / 45% typical white reflectivity, 16:1 minimum / 20:1 typical contrast ratio, and a 520 ms typical image-update time at 25°C.
The product specification states that the listed electrical and optical characteristics are guaranteed only under the controller and waveform provided by OED.
Power and Drive Requirements
DMAYE0780X8NB uses VDD, VGH, VGL, VPOS, VNEG, and VCOM rails. Follow the published voltage ranges and the required power-on and power-off sequence in the product specification.
| Electrical Item | Datasheet Value |
|---|---|
| Signal Ground, VSS | 0 V |
| Logic Supply, VDD | 3.0 V minimum, 3.3 V typical, 3.6 V maximum |
| Gate Positive Supply, VGH | 27 V minimum, 28 V typical, 29 V maximum |
| Gate Negative Supply, VGL | -21 V minimum, -20 V typical, -19 V maximum |
| Source Positive Supply, VPOS | 14.6 V minimum, 15 V typical, 15.4 V maximum |
| Source Negative Supply, VNEG | -15.4 V minimum, -15 V typical, -14.6 V maximum |
| Source-Rail Asymmetry | -800 mV minimum to 800 mV maximum for VPOS + VNEG |
| Common Voltage, VCOM | -2.5 V minimum to -0.9 V maximum; the typical entry is identified as adjusted |
| Typical Module Power | 102 mW, measured when typical images are displayed |
| Standby Module Power | 0.93 mW when the module controller is in standby mode |
Power Sequencing
Published sequence: power on with VDD → VGL → VNEG/VGH/VPOS → VCOM, and power off in the reverse order. Refer to the datasheet sequence diagrams for the corresponding timing and discharge details.
Power Figures
The 102 mW typical value is measured while “typical images” are displayed. Maximum power and current values are specified for worst-case power consumption.
VCOM Adjustment
VCOM is specified from -2.5 V to -0.9 V, and the typical entry is marked “Adjusted” in the product specification.
Controller and Interface Integration
The product specification states that the module can be driven by an HH7163 timing controller (T-Con). The 40-pin FPC pin assignment includes power, gate-driver, source-driver, control, data, ground, and border connections.
Interface References
Review the 40-pin assignment, DC and AC characteristics, voltage rails, VCOM range, image-update condition, and published power sequence before system integration.
Use the electrical connector table and mechanical drawing when reviewing the panel connection and module placement.
Timing controller: The module interface description states that DMAYE0780X8NB can be driven by the HH7163 timing controller.
FPC interface: The electrical connector table specifies a PANASONIC interface connector, 40 pins, and a 0.5 mm FPC pitch. No connector type number is listed.
Controller and waveform: The listed electrical and optical characteristics are guaranteed only under the controller and waveform provided by OED.
Power sequence: Power on in the order VDD → VGL → VNEG/VGH/VPOS → VCOM, and power off in the reverse order.
Mechanical Integration Details
The mechanical specification lists the module outline, active area, 0.86 mm thickness, 38.93 g mass, square pixel configuration, and 40-pin FPC. Use the manufacturer-issued drawing for dimensional review.
127.6 × 173.8 × 0.86 mm
Published module outline dimensions.
118.638 × 158.184 mm
Published active-area dimensions.
40 Pins at 0.5 mm Pitch
The electrical connector table lists 40 pins and a 0.5 mm FPC pitch.
38.93 g
Published module mass.
Operating and Storage Conditions
The product specification lists panel operating and storage limits and provides separate controlled-storage guidance. It also instructs users to avoid moisture, condensation, and prolonged exposure to high temperature, high humidity, sunlight, or fluorescent light.
| Environmental Item | Published Range or Application Note |
|---|---|
| Operating Temperature | 0°C to 50°C |
| Operating Relative Humidity | 0% to 70% RH |
| Storage Temperature | -25°C to 60°C |
| Storage Relative Humidity | 30% to 60% RH |
| Recommended Controlled Storage | 15°C to 35°C and 30% to 60% RH in the original packaging, without sunlight or condensation, as stated in the handling and storage guidance |
Documentation and Design Review
Use the following product-specification sections when evaluating DMAYE0780X8NB for a new design.
Product Specification Sections
1. Description, features, and application
2. 40-pin input/output assignment
3. DC/AC characteristics and power sequence
4. Mechanical, optical, handling, reliability, block-diagram, and certification sections
Model reference: Confirm the model number DMAYE0780X8NB on the specification and supplied sample.
Mechanical data: Review the 127.6 × 173.8 × 0.86 mm outline, 118.638 × 158.184 mm active area, 38.93 g mass, and mechanical drawing.
Electrical data: Review VDD, VGH, VGL, VPOS, VNEG, VCOM, listed currents, and the required on/off sequence.
Controller and waveform: The specification identifies HH7163 and states that listed electrical and optical characteristics are guaranteed under the controller and waveform provided by OED.
Optical data: Review 42% minimum / 45% typical white reflectivity, 16:1 minimum / 20:1 typical contrast ratio, and the stated test conditions.
Environmental limits: Review the published operating, storage, and controlled-storage conditions before product qualification.
Frequently Asked Questions
What is the published standby power?
The published standby power is 0.93 mW when the module controller is in standby mode.
What is the published image-update time?
The product specification lists a typical image-update time of 520 ms at 25°C.
Is this specified as an SPI display module?
No SPI interface is stated in the product specification. The module uses a 40-pin FPC with a 0.5 mm pitch and a parallel source-driver data assignment.
Which timing controller is identified?
The module interface description states that DMAYE0780X8NB can be driven by the HH7163 timing controller.
What are the operating and storage limits?
Operating limits are 0°C to 50°C and 0% to 70% RH. Storage limits are -25°C to 60°C and 30% to 60% RH.
Which certification is listed?
The certification table marks RoHS as compliant. CE, FCC, and Other are not marked as certified in this product specification.
Download the Datasheet
Download the DMAYE0780X8NB V1.0.0 product specification for the complete pin assignment, electrical characteristics, power sequence, mechanical drawing, optical data, handling requirements, reliability tests, block diagram, and certification status.
Use the product specification together with the exact model number shown on the supplied sample or purchase documentation.