Abstract: A display device includes a first display unit emitting a green light having a first output spectrum corresponding to a highest gray level of the display device and a second display unit emitting a blue light having a second output spectrum corresponding to the highest gray level of the display device. The first output spectrum has a main wave with a first peak. The second output spectrum has a main wave with a second peak and a sub wave with a sub peak. The second peak corresponds to a main wavelength, the sub peak corresponds to a sub wavelength, and the main wavelength is less than the sub wavelength. An intensity of the second peak is greater than an intensity of the sub peak and an intensity of the first peak.

Abstract: An electronic device includes a light emitting diode and a light converting layer disposed on the light emitting diode. The electronic device emits a green output light under an operation of a highest brightness. The green output light has an output spectrum. An intensity integral of the output spectrum from 380 nm to 489 nm is defined as a first intensity integral. An intensity integral of the output spectrum from 490 nm to 780 nm is defined as a second intensity integral. A ratio of the first intensity integral over the second intensity integral is defined as a first ratio, and the first ratio is greater than 0% and less than or equal to 7.5%.

Abstract: A computer chair device has a main frame, a main body disposed in the main frame, a support rod disposed on the main frame, a table plate disposed on the support rod, two support posts disposed on the main frame, and two upper plates disposed on the support posts. The main frame has a plurality of bottom rods. A base plate is disposed on the bottom rods. A slide plate is disposed on the bottom rods. A protruded block is disposed on the slide plate.

Abstract: An improved armrest adjusting mechanism for use on a vehicle's seat is provided with a slide board housed in an adjusting bracket. The slide board has a dentate portion having a plurality of dents which are in retaining engagement with a pivotal retaining ratchet secured to the adjusting bracket. The adjusting bracket can only be pulled upwardly in adjustment so as to make the armrest extended. The lowering of the armrest can be easily effected by pulling the adjusting bracket all the way up its top end, taking the retaining ratchet out of the moving path of the dentate portion of the slide board with the ratchet retained in place by a locking pole which is brought to the bottom of an elliptic through hole when the adjusting bracket is pulled to its top end. Then, the adjusting bracket is pushed downwardly and the retained locking pole will be pushed out of retaining engagement with the spring biased retaining ratchet and the locking pole moves to the top end of the elliptic through hole.

Abstract: A sleeve structure of an office chair fitted around a pneumatic bar. The sleeve structure includes a sleeve body and a steel circular tube. The sleeve body is a plastic hollow flexible member, having a sleeve hole and two annular stoppers at two ends. Multiple (preferably 8 to 12) equally spaced axial ribs are arranged on the outer surface of the sleeve body and three equally spaced axial slits are formed on the sleeve body. Two polygonal (preferably hexagonal, heptagonal or octagonal) plastic fitting members are fitted in two ends of the steel circular tube to form an assembly. Each fitting member has an annular stopper at an end thereof. The assembly of the steel circular tube and the fitting members is forcedly fitted into the sleeve hole of the sleeve body by a machine and locked by the stoppers of the sleeve body. In turn the pneumatic bar is fitted into the steel circular tube with the angles of the fitting members tightly contacting with the pneumatic bar nearly without clearance existing therebetween.