46 results about "Border effect" patented technology

The invention discloses a comprehensive permeability testing machine for measuring vertical permeability coefficient and horizontal permeability coefficient. The invention comprises a constant-pressure water tank which is communicated with two water supply pipes, wherein, one water supply pipe is communicated with an upper pressure chamber; the top of the upper pressure chamber is provided with abarometer and an air-bleed hole and the side face of the upper pressure chamber is provided with an inflating device; the upper pressure chamber is communicated with a lower pressure chamber through an assembly member; the upper part of the lower pressure chamber is provided with a bubble exhaust hole and the lower part of the lower pressure chamber is communicated with a graduated flask through an exhaust pipe and a metered valve; the other water supply pipe is connected to the left of the assembly member; and the assembly member is communicated with the graduated flask through the exhaust pipe and the metered valve and consists of an impervious membrane, silicon rubber, a V-shaped slot board and a pressurized plastic membrane. The comprehensive permeability testing machine has the advantages that: firstly, the pressurized plastic membrane can quickly, precisely and uniformly transfer normal pressure to a sample, and the impervious membrane can prevent leakage of the sidewall; secondly, water flow is uniformly infiltrated into the V-shaped slot; thirdly, due to arrangement of the silicon rubber, the border effect is reduced; fourthly, the whole machine realizes measurement of thevertical permeability coefficient and the horizontal permeability coefficient, and is precise, simple and clean, highly efficient, practical and convenient to operate.

The present invention provides a method for forming an image sensor interlayer dielectric layer trench and an image sensor. Primary etching is employed, with the etching shielding effect of two side light-blocking layers, and a second trench far from an edge area is formed in a last but one layer of interlayer dielectric layer. Only one type of light cover is needed by the primary etching, the second trench is formed without second etching, thus an additional light cover is not needed, and the production cost is saved. Further, a transparent lens is installed in the second trench, then a transparent encapsulating material is formed in the first trench, due to the controllable thickness of the encapsulating material, the thickness difference between a center area and the edge area can be reduced, a border effect is eliminated, and the performance of the formed image sensor is improved.

The invention provides a display method of liquid crystal. The liquid crystal comprises a backlight source which is divided into at least two backlight source sections. The display method of the liquid crystal comprises the following steps: receiving an image signal; dividing a current image into at least two image sections according to the backlight source sections; calculating the typical brightness data of each image section; calculating the correct backlight brightness of each backlight source section according to the typical brightness data of each image section and the typical brightness data of at least one adjacent image section; adjusting the brightness of each backlight source section according to the correct backlight brightness of each section; adjusting the current image signal. In the invention, because the correct backlight brightness is simultaneously determined by the brightness of a plurality of adjacent image sections, the brightness difference of the adjacent backlight source sections is not large, and the brightness can not abruptly change, thereby similar border effect in the two adjacent image sections is prevented from occurring in the prior art and the display effect is improved.