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LCD display Classification and characteristics
1. Classification by self-emitting and receiving external light sources 2. Classification by mode of drive 3. Characteristics of the various displays
Electronic evaluation of new projects
A. Assessment of interface definitions The individual PIN definitions coming out of the display must be consistent with the PIN definitions connected to the customer's motherboard. The following is a 37pin interface definition Pin No. Symbol Description Note 1 GND...
History of Liquid Crystal
1. A brief history of the liquid crystal A. Discovery phase It was discovered in 1888 by Austrian botanist F. Reinitzer In 1889, it was named "Liquid Crystal" by the German physicist Otto Lehmann. B. Stage of development In 1963, the U.S. company RCA made a...
Professional terminology related to LCD
Professional terminology related to LCD LCD: (LIQUID CRYSTAL DISPLAY) Liquid Crystal Display LCM: (LIQUID CRYSTAL MODULE) LCD Module TN: (TWISTED NEMATIC) Distorted directional column. Liquid crystal molecules distort their orientation by 90°. STN: (SUPER TWISTED...
Structural assessment of new projects
In the pre-assessment design of a new project, we review the assessed project based on the inquiry provided by the client. The aim is to ensure the rationality of the design, the versatility of the main materials, the operability of the production process, and the...
LCM production process flow
The LCD module production process consists of the following steps. A. Cleaning the Panel B. Attachment of polarizers C. COG Bonding D. FPA HS thermal pressure E. Insulating glue coating F. Assembly of BLU G. Assembly of...
Features of the LCD display
A. Low voltage drive. B. Low current consumption. C. Small in size, light in weight, getting thinner and thinner. D. All sizes and areas are available. E. Proven technology, low cost. F. Large viewing angle for full view. G. Use is greatly limited by temperature. H....
LCM Production Checksheet
No Inspection results COG 1 Model using ACF 2 First, check sample COG whether there are enough 5 effective conductive particles per BUMP 3 First inspection sample COG BUMP and ITO PAD alignment 4 First inspection sample IC back microscopy, no scratches on the back...
Introduction to LCM structure
1. TP Touch Panel touch screens, commonly 4-wire resistive touch screens. The user can use the stylus directly or fingers to operate. 2. TFT Panel The panel that provides the display for the entire display module and is the most important component of the display...
LCM common defects and quality standards
A. Description of main parts Item Criterion Remark 1. FPCA The criterion for chip component solder point: IPC-A-610C CLASS 2 on general occasion。 Vision inspection / Microscope 2. Backlight 2.1 Defect of no light is unaccepted。 2.2 The brightness (test with BM-7...
