VA LCD SCREEN
Hunan Chengxin Optoelectronics Co., Ltd VA LCD SCREEN
1) [Display type] VA;
2) [Display mode] Negative display;
3) [Driving Conditions] DUTY (number of driving paths); BIAS (bias voltage ratio);
4) [Viewpoint] 6:00/12:00/3:00/9:00;
5) [Driving Voltage]: The driving voltage that matches your company's product design is required
6) [Temperature] Normal temperature / Wide temperature range / Ultra-wide temperature range.
7) [Dimensions]: Large glass size; Small glass size; VA area size; PIN spacing/PIN pin direction.
8) [Pattern Requirements]: [Normal Process] The pattern thickness requirement is ≥0.1mm; the gap between patterns is ≥0.1mm; the non-visible area is ≥1.0mm (adjusted according to the displayed appearance dimensions and type). [Normal Process] requires engineering process evaluation.
9) [Connection method]: Metal pins/conductive adhesive strips/zebra paper/FPC.
10) [Screen printing color]: For positive screen printing, only thick lines can be made; for negative screen printing, the screen printing color requirements need to be provided.
In VA (vertical alignment) LCDs, homeotropic liquid crystals – i.e. those aligned perpendicular to the substrate surface – are switched parallel to the glass substrate by the application of an electric field that is perpendicular to the substrate. This requires liquid crystal mixtures with negative dielectric anisotropy that are aligned perpendicular to the electric field. This is achieved by introducing lateral polar side groups to mesogenic molecules. When no voltage is applied, the homeotropic orientation of the liquid crystals initially produces an almost ideal black state between crossed polarizers. VA displays are therefore characterized by excellent contrast values and are generally operated in normally black mode. This means that the screen is black when no voltage is applied.
VA LCD SCREEN Drawing
Hot Tags: va lcd screen, China va lcd screen manufacturers, suppliers, factory, Reflective LCD Screen
